Compacting device.

专利摘要:
The invention relates to a device (240) for compacting a plurality of pledgets or pessaries. The device has a first press unit support structure (242) and a second press unit support structure (242), each of the first press unit support structure (242) and the second press unit support structure (242) being rotatable about a common axis (248) is. A first press unit (254) has an axial direction press unit for compacting in an axial direction along a longitudinal direction and / or a lateral direction of the pledget or pessary, which is carried on the first press unit support structure (242). A second press unit (254) carried on the second press unit support structure (242), the second press unit (254) being one of an axial direction press unit, a non-linear direction press unit, or a press unit having a compacting surface, which decreases with the compression movement.
公开号:CH711918B1
申请号:CH00547/17
申请日:2014-09-30
公开日:2020-01-31
发明作者:Alex Hilt Ronald；Craig Gehling Steven
申请人:Kimberly Clark Co；
IPC主号:

专利说明:

Description Background A variety of products can go through a densification step during a manufacturing process of the product. Compression of the product can change the dimensions of the product from its original initial dimensions, resulting in a product with ultimately smaller dimensions. Examples of personal care products that can go through a densification step in a manufacturing process may include tampons and pessaries.
[0002] Tampons and pessaries go through a compression step during the manufacturing process to bring the product into a size and dimension that is more suitable for insertion into the body of the user. The compression of a tampon pledget or an uncompressed pessary can result in a tampon that can be inserted digitally by the fingers of the user or by using an applicator. A tampon is generally made by folding, rolling or stacking an absorbent structure made of loosely connected absorbent material into a pledget. The pledget can then be compressed into a tampon of the desired size and shape. A pessary may similarly be made of an absorbent material, or may be made of a non-absorbent material, and may ultimately be compressed into a size suitable for insertion into the vaginal cavity.
[0003] In current manufacturing processes, pledgets or pessaries are generally compressed one at a time. A device that can compress only one tampon pledget or pessary at a time can lead to limitations in the production efficiency of manufactured tampons and pessaries. A limitation can be the reduction in production time and an increase in unproductive time during the compression step of a manufacturing process. Productive time can be the time in which the pledget or undensified pessary is converted to a final tampon or undensified pessary. For example, non-productive time can be the time during which the pledget or undensified pessary is waiting for an action to be performed on it, e.g. Time spent waiting for the pledget or undensified pessary to enter the compactor. Another example of a limitation can be the volume of synchronous processes versus asynchronous processes. With synchronous processes, productive and non-productive processes can occur simultaneously with one or more productive or non-productive processes. In asynchronous processes, productive and non-productive processes can occur sequentially with other productive or non-productive processes. A larger volume of asynchronous processes, especially non-productive processes, can reduce the efficiency of the production of tampons and pessaries.
One attempt to address these limitations in connection with the compression step of the manufacturing process has been to speed up the rotation time of the compression device. However, increasing the rotation time of the device did not change the overall efficiency of the device because only a pledget or pessary is compressed within the single rotation of the compactor. There is a need for a device that can compress more than a single tampon pledget or pessary in one revolution of the device.
Summary A first aspect of the invention relates to a device for compacting a plurality of pledgets or pessaries. The device has: a first press unit support structure and a second press unit support structure, each of the first press unit support structure and the second press unit support structure being rotatable about a common axis; an axial direction press unit for compacting a first pledget or pessary in an axial direction along a longitudinal direction and / or lateral direction of the first pledget or pessary, which is carried on the first press unit carrier structure and is configured to, during a single revolution of the first press unit carrier structure to go through a complete compression cycle on the common axis; and a second press unit for compacting a second pledget or pessary carried on the second press unit support structure and configured to undergo a complete compression cycle during a single revolution of the second press unit support structure, the second press unit being one Is a non-linear direction pressing unit for compacting in a non-linear direction, or a pressing unit having a compacting surface that decreases with a compacting movement. In different embodiments, at a particular time during one revolution of each of the first and second press unit support structures about the axis, the axial direction press unit is in a configuration that is of a fully open configuration, a partially closed configuration, a partially open configuration Configuration or a fully closed configuration, and the second press unit is in a configuration that is one of a fully open configuration, a partially closed configuration, a partially open configuration, or a fully closed configuration. In different embodiments, the configuration of the axial direction press unit at this particular time is the same as the configuration of the second press unit. In different embodiments, the configuration of the axial direction pressing unit differs from the configuration of the second pressing unit at this specific point in time. In different embodiments, the axial direction press unit with the first press unit support structure is in a variable spatial relationship relative to the second press
CH 711 918 B1 unit, which is connected to the second press unit support structure. In various embodiments, the compression of a material within one of the axial direction press unit or second press unit begins after the axial direction press unit or second press unit rotates from a zero degree position and with a rotation up to at least about a 90 degree Position continues.
A second aspect of the invention relates to an apparatus for compacting a plurality of pledgets or pessaries, comprising: a first press unit support structure and a second press unit support structure, each of the first press unit support structure and the second press unit support structure a common axis is rotatable; a non-linear direction press unit for compressing a first pledget or pessary in a non-linear direction, which is carried on the first press unit carrier structure and is designed to go through a complete compression cycle during a single rotation of the first press unit carrier structure around the common axis; and a second press unit for compacting a second pledget or pessary carried on the second press unit support structure and configured to undergo a complete compression cycle during a single revolution of the second press unit support structure, the second press unit being one Is a non-linear direction press unit for compacting in a non-linear direction, or a press unit having a compacting surface which decreases with the compacting movement. In different embodiments, at a given time during one revolution of each of the first and second press unit support structures about the axis, the non-linear direction press unit is in a configuration that is one of a fully open configuration, a partially closed configuration, one fully closed configuration or partially open configuration, and the second press unit is in a configuration which is one of a fully open configuration, a partially closed configuration, a fully closed configuration or a partially open configuration. In different embodiments, the configuration of the non-linear direction press unit at the particular time is the same as the configuration of the second press unit. In different embodiments, the configuration of the non-linear direction press unit differs from the configuration of the second press unit at this particular point in time. In different embodiments, the non-linear direction press unit with the first press unit support structure is in a variable spatial relationship relative to the second press unit, which is connected to the second press unit support structure. In various embodiments, compaction of a material within one of the non-linear direction press unit or the second press unit begins after the non-linear direction press unit or the second press unit rotates from a zero degree position and with a rotation up to at least about a 90 degree position.
Another aspect of the invention relates to a device for compacting a plurality of pledgets or pessaries, comprising: a first press unit support structure and a second press unit support structure, each of the first press unit support structure and the second press unit support structure a common axis is rotatable; a first press unit for compacting a first pledget or pessary, which has a compacting surface which decreases with the compacting movement, which is carried on the first press unit carrier structure and is designed to unite during a single revolution of the first press unit carrier structure about the common axis to go through the full compression cycle; and a second press unit for compressing a second pledget or pessary carried on the second press unit support structure and configured to undergo a complete compression cycle during a single revolution of the second press unit support structure, the second press unit being one Press unit that has a compression surface that decreases with the compression movement. In different embodiments, at a particular time during one revolution of each of the first and second press unit support structures about the axis, the first press unit is in a configuration that is one of a fully open configuration, a partially closed configuration, a partially open configuration or a fully closed configuration, and the second press unit is in a phase that is one of a fully open configuration, a partially closed configuration, a partially open configuration, or a fully closed configuration. In different embodiments, the configuration of the first press unit at this particular point in time is the same as the configuration of the second press unit. In different embodiments, the configuration of the first press unit at this time differs from the configuration of the second press unit. In different embodiments, the first press unit with the first press unit support structure is in a variable spatial relationship relative to the second press unit, which is connected to the second press unit support structure. In various embodiments, compaction of a material begins within one of a first or second press unit after the first or second press unit rotates from a zero degree position and continues to rotate to at least about a 90 degree position.
Brief Description of the Drawings
1A is a perspective view of an exemplary embodiment of an absorbent
Structure.
CH 711 918 B1
Figure 1B Figure 12 is a top view of an exemplary embodiment of an absorbent structure. 2A and 2B 14 are perspective views of exemplary embodiments of pledgets. 3A to 3D are side views of exemplary embodiments of tampons. Figure 4A Figure 3 is a perspective view of an exemplary embodiment of a pessary. Figure 4B FIG. 4 is a perspective view of an exemplary embodiment of the pessary of FIG. 4A. Figure 4C FIG. 4 is a perspective view of an exemplary embodiment of the compressed core of the pessary of FIG. 4A. Figure 5A Figure 3 is a perspective view of an exemplary embodiment of a pessary with a fold. Figure 5B Figure 5 is a cross-sectional view of the pessary of Figure 5A. Figure 6A Figure 3 is a perspective view of an exemplary embodiment of a pessary with a brace. Figure 6B Figure 6 is a cross-sectional view of the pessary of Figure 6A. Fig. 7 10 is a schematic view of an exemplary embodiment of an apparatus. 8A to 8E 14 are schematic illustrations of an exemplary embodiment of axial compression in the longitudinal direction. 9A to 9C 14 are schematic illustrations of an exemplary embodiment of axial compression in the lateral direction. Fig. 10 10 is an exemplary embodiment of a non-linear direction press unit. Figure 11A 10 is an exemplary embodiment of the press unit of FIG. 10 in an open phase. Figure 11B 10 is an exemplary embodiment of the press unit of FIG. 10 in a partially closed phase. Figure 11C 10 is an exemplary embodiment of the press unit of FIG. 10 in a closed phase. Fig. 12 Fig. 3 is a schematic illustration of a non-linear direction press unit in an open phase. Fig. 13 10 is a schematic illustration of an exemplary embodiment of a non-linear direction press unit in a closed phase. Fig. 14 illustrates a broad side view of an exemplary notch press claw. Figure 14A illustrates an enlarged view of detail A of FIG. 14. Fig. 15 illustrates a broad side view of an exemplary notch press claw. Figure 15A illustrates an enlarged view of detail A of FIG. 15. Fig. 16 illustrates a broad side view of an exemplary notch press claw. Figure 16A illustrates an enlarged view of detail A of FIG. 16. Fig. 17 illustrates a broad side view of an exemplary notch press claw. 17A and 17B illustrate enlarged views of details A and B, respectively, of FIG. 17. Fig. 18 illustrates a broad side view of an exemplary notch press claw. Figure 18A illustrates an enlarged view of detail A of FIG. 18.
CH 711 918 B1
Fig. 19
Fig. 20
21 is a schematic illustration of an exemplary embodiment of a press unit having a compaction area that decreases during a compaction movement in an open phase.
10 is a schematic illustration of an exemplary embodiment of a press unit having a compression surface that decreases during a compression movement in a closed phase.
illustrates a lever and a claw used in the press unit of FIGS. 19 and 20.
Detailed Description The present disclosure generally relates to an apparatus that can be used in the compression step of a tampon or pessary manufacturing process. The present disclosure also generally relates to a method of compacting a material, such as e.g. a pledget or a pessary.
definitions:
The term “insertion aid” refers to a device that facilitates the insertion of a tampon or pessary into a woman's vaginal cavity. Non-limiting examples include any well-known, hygienically designed insertion aid that is capable of receiving a tampon or pessary, including so-called collapsible barrels and plungers and compact applicators. The term "attached" refers to configurations in which a first element is attached to a second element by connecting the first element to the second element. Connecting the first element to the second element can occur by connecting the first element directly to the second element, e.g. by connecting the first element to an intermediate element (s), which in turn can be connected to the second element, and in configurations in which the first element is integral with the second element (ie the first element is essentially part of the second element) , Attachment can be done by any method that is considered suitable, including but not limited to adhesives, ultrasonic bonding, thermal bonding, pressure bonding, mechanical bonding, hydroentangling, microwave bonding, or any other conventional technique. The attachment may extend continuously along the length of the attachment, or it may be applied intermittently at discrete intervals.
As used herein, the term "bicomponent fiber" refers to fibers formed from at least two polymer sources extruded from separate extruders but spun together to form a fiber. Bicomponent fibers are sometimes also referred to as conjugate fibers or multicomponent fibers. The polymers are arranged in essentially endlessly positioned, separate zones across the cross-section of the bicomponent fiber and extend continuously along the length of the bicomponent fiber. The configuration of such a two-component fiber can e.g. a shell / core arrangement in which one polymer is surrounded by another, or it can be a side-by-side arrangement, a cake arrangement or an "island arrangement".
The term "compaction" as used herein refers to the process of pressing, squeezing, compacting, or otherwise manipulating the size, shape, and / or volume of a material to obtain an insertable tampon or pessary. For example, a pledget may undergo compaction to obtain a tampon that has a vaginally insertable shape. The term “compacted” here refers to the status of the material (s) after compression. Conversely, the term “undensified” refers to the status of the material (s) prior to compression. The term "compressible" is the ability of material to undergo compaction.
The term "cross-section" refers herein to a plane of the tampon or pessary that extends laterally through the tampon or pessary and that is orthogonal to the longitudinal axis of the tampon or pessary, or that is transverse or perpendicular to the longitudinal axis runs.
[0014] The term “digital tampon” refers herein to a tampon that is intended to be inserted into the vaginal cavity with the user's finger, rather than with an applicator. Therefore, digital tampons are typically visible to the user rather than being housed in an applicator.
[0015] The term “folded” here refers to the configuration of a pledget, which can occur accidentally when the absorbent structure of the pledget is compressed laterally or in a targeted manner before a compression step. Such a configuration can e.g. be easily recognizable when the absorbent material of the absorbent structure abruptly changes direction so that part of the absorbent structure bends or lies over another part of the absorbent structure.
[0016] The term "generally cylindrical" as used herein refers to the common shape of tampons, as is well known in the art, but which also includes flattened or partially flattened cylinders, curved cylinders, and shapes that have varying cross-sectional areas (e.g., bottle-shaped) have along the longitudinal axis.
CH 711 918 B1 [0017] The term “longitudinal axis” refers here to the axis that runs in the direction of the longest linear dimension of the tampon or pessary. For example, the longitudinal axis of a tampon is the axis that extends from the insertion end to the withdrawal end. As another example, the longitudinal axis of a pessary is the axis that extends from the anchoring element to the carrier element.
The term “outer surface” refers here to the visible surface of the (compressed and / or shaped) tampon or pessary before use and / or expansion. At least part of the outer surface can be smooth or alternatively have topographical features, such as Ribs, spiral ribs, grooves, a mesh pattern or other topographical features.
The term "pessary" refers herein to a device used to treat urinary incontinence. A pessary can have an anchoring element, a carrier element and a retraction element.
The term "pledget" refers herein to a construction of an absorbent structure prior to compression and / or molding the absorbent structure into a tampon. The absorbent structure can be rolled, folded, or otherwise manipulated into a pledget prior to compacting the pledget. Pledgets are sometimes referred to as blanks or softwinds, and the term “pledget” is also intended to include these terms. Generally, "tampon" is used to refer to a finished tampon after the compression and / or molding process. The term "radial axis" as used herein refers to the axis that is perpendicular to the longitudinal axis of the tampon or pessary.
The term “relatively smooth” refers herein to an area that is relatively free of irregularities, roughness, or projections that are greater than about 1 mm in height or depth, as measured by the area.
The term "rolled" refers to a configuration of the pledget after the absorbent structure is wound around itself.
[0023] The term "tampon" as used herein refers to an absorbent structure that is inserted into the vaginal cavity for absorbing fluid therefrom, or for administering active materials such as drugs. A pledget may have been compressed in the non-linear direction, an axial direction along the longitudinal and / or lateral axis, or in both, the non-linear and the axial direction, to form a substantially cylindrical tampon. Although the tampon can have a substantially cylindrical configuration, other shapes are also possible. These other shapes can include, but are not limited to, having a cross section that can be described as rectangular, triangular, trapezoidal, semicircular, watch glass, serpentine, or any other suitable shape. Tampons have an insertion end, a withdrawal end, a withdrawal element, a length, a width, a longitudinal axis, a radial axis and an outer surface. The length of the tampon can be measured from the insertion end to the withdrawal end along the longitudinal axis. A typical tampon can have a length of about 30 mm to about 60 mm. A tampon can have a linear or non-linear shape, e.g. curved along the longitudinal axis. A typical tampon can have a width of about 2 mm to about 30 mm. The width of the tampon, unless otherwise stated, corresponds to the length across the widest cross section along the length of the tampon.
The term "vaginal cavity" refers herein to the internal genitalia of female mammals in the pudendal area of the body. The term refers to a space that is positioned between the introid of the vagina (sometimes referred to as the sphincter of the vagina or the hymen ring) and the cervix. The term does not include the interlabial space, the floor of the vestibule or the sex organs visible from the outside.
However, as mentioned above, health care products that go through a densification step during the manufacturing process may include, but are not limited to, tampons and pessaries.
Tampon:
[0026] A tampon can result from the compression of a pledge. The pledget can in turn be formed from an absorbent structure, which consists of an absorbent material.
FIG. 1A illustrates a perspective view of an exemplary embodiment of an absorbent structure 10 generally in the shape of a square, and a retractor 14 having a knot 16 connected to the absorbent structure 10. 1B illustrates a perspective view of an exemplary embodiment of an absorbent structure 10 having a generally angular shape and a retractor 14 having a knot 16 connected to the absorbent structure 10. It should be understood that these two shapes, square and angular, are illustrative and the absorbent structure 10 can be of any shape, size and thickness that can ultimately be compressed into a tampon, such as e.g. Tampon 24 in Figs. 3A to 3D. Non-limiting examples of the shape of an absorbent structure 10 may include, but are not limited to, oval, round, angular, square, rectangular, and the like. The absorbent structure 10 may have a single layer of absorbent material 12, or the absorbent structure 10 may have a laminar structure that may have separate layers of absorbent material 12. In one embodiment, in which the absorbent structure 10 has a laminar structure, the layers can be made from a single one
CH 711 918 B1 absorbent material and / or be formed from other absorbent materials. In one embodiment, absorbent structure 10 may have a length dimension 18 along the longitudinal axis of absorbent structure 10 from about 20, 30, or 40 mm to about 50, 60, 75, 100, 200, 250, or 300 mm. In one embodiment, the absorbent structure 10 may have a width dimension 20 laterally to the longitudinal axis of the absorbent structure 10 from about 40 mm to about 80 mm. In one embodiment, the basis weight of the absorbent structure 10 can range from about 15, 20, 25, 50, 75, 90, 100, 110, 120, 135 or 150 g / m ² to about 1000, 1100, 1200, 1300, 1400 or 1500 g / m ² .
The absorbent material 12 of the absorbent structure 10 can be absorbent fiber material. This absorbent material 12 may include, but is not limited to, natural fibers and synthetic fibers such as e.g. Polyester, acetate, nylon, cellulose fibers such as e.g. Wood pulp, cotton, rayon, viscose, LYOCELL®, e.g. from the Lenzing company in Austria, or mixtures thereof, or other cellulose fibers. Natural fibers can include, but are not limited to, wool, cotton, flax, hemp, and wood pulp. Wood pulps can include, but are not limited to, standard softwood flake quality, such as CR-1654 (US Alliance Pulp Mills, Coosa, Alabama). Pulp can be modified to improve the inherent characteristics of the fibers and their processability, e.g. by crimping, curling and / or stiffening. Absorbent material 12 may include any suitable mixture of fibers.
In one embodiment, the absorbent structure 10 may include fibers such as e.g. Binder fibers. In one embodiment, the binder fibers may have a fiber component that bonds to or fuses with other fibers in the absorbent structure 10. Binder fibers can be natural fibers or synthetic fibers. Synthetic fibers include, but are not limited to, those made from polyolefms, polyamides, polyesters, wool, acrylic, viscose, superabsorbents, regenerated LYOCELL® cellulose, and other suitable synthetic fibers known to those skilled in the art. The fibers can be treated by conventional compositions and / or processes to enable or improve wettability.
In various embodiments, the absorbent structure 10 can have any suitable combination and ratio of fibers. In one embodiment, the absorbent structure 10 may include from about 70 to about 95% by weight absorbent fibers and from about 5 to about 30% by weight binder fibers.
[0031] In various embodiments, a cover can be provided as known to those of ordinary skill in the art. As used herein, the term "cover" refers to materials that are associated with and cover or enclose surfaces, such as e.g. an outer surface of the tampon 24, and reduce the ability of portions (e.g., fibers and the like) to separate from the tampon 24 and remain after removal of the tampon 24 from the woman's vaginal cavity.
[0032] In different embodiments, the cover can be formed from nonwoven materials or films provided with openings. The cover can be made from any number of suitable techniques, such as nonwoven spun, carded, water entangled, thermally bonded, and resin bound. In one embodiment, the cover can be a smooth calendered 12 g / m ² material consisting of two components, polyester sheath and polyethylene core, fibers, such as Sawabond 4189, available from Sandler AG, Germany.
In different embodiments, the absorbent structure 10 can be attached from a retraction element 14. The retraction member 14 may be attached to the absorbent structure 10 in any suitable manner as known to those of ordinary skill in the art. A knot 16 may be formed near the free ends on the retraction member 14 to ensure that the retraction member 14 does not separate from the absorbent structure 10. The knot 16 can also serve to prevent the retractor 14 from fraying and provide a location or point where a woman can grip the retractor 14 when she is ready to remove the tampon 24 from her vaginal cavity.
The absorbent structure 10 can be rolled, folded or otherwise manipulated into a pledget 22 before the pledget 22 is compacted. 2A is an illustration of a perspective view of an example of a rolled pledget 22 such as e.g. a radially wound pledget 22. FIG. 2B is an illustration of a perspective view of an example of a folded pledget 22. It is understood that radially wound and folded configurations are illustrative and additional configurations of pledget 22 are possible. For example, suitable menstrual tampons may include "cup-shaped" pledgets such as those described in Edgett's U.S. Publication No. 2008/0287902 and U.S. Pat. 2,330,257 to Bailey; "Accordion" or "W-folded" pledgets such as those used in the U.S. 6,837,882 to Agyapong; "Radially wound" pledgets include, such as those in the U.S. 6,310,269 to Friese; "Sausage" type or "Bausch" pledgets such as those used in the U.S. 2,464,310 to Harwood; "M-folded" tampon pledgets such as those used in the U.S. 6,039,716 to Jessup; "Stacked" tampon pledgets include, such as those used in the U.S. 2008/0 132 868 by Jorgensen; or "bag-shaped" tampon pledgets, such as those found in U.S. 3,815,601 by Schaefer.
A suitable method for making "radially wound" pledgets is in U.S. 4,816,100 by Friese. Suitable methods for making "W-folded" pledgets are described in U.S. 6,740,070 to Agyapong;
CH 711 918 B1
U.S. 7,677,189 from Kondo; and U.S. 2010/0 114 054 by Mueller. A suitable method for producing "bowl-shaped" pledgets and "stacked" pledgets is described in U.S. 2008/0 132 868 by Jorgensen.
In different embodiments, the pledget 22 can be compressed into a tampon 24. Additional details regarding an apparatus and method for densification are provided later herein. The pledget 22 can be compressed by any suitable amount. For example, the pledget 22 can be compressed by at least about 25%, 50% or 75% of the initial dimensions.
For example, a diameter of a pledget 22 can be reduced to approximately% of the original diameter. The transverse configuration of the resulting tampon 24 can be circular, oval, elliptical, rectangular, hexagonal, or any other suitable shape.
3A provides an illustration of an embodiment of a side view of an exemplary tampon 24 that has a relatively smooth outer surface. 3B illustrates an embodiment of a side view of an exemplary tampon 24 that includes topographical features such as e.g. Has grooves 32 and ribs 34. 3C illustrates an embodiment of a side view of an exemplary tampon 24 that includes topographical features such as e.g. Has grooves 32 and notches 400. 3D illustrates an embodiment of a side view of an exemplary tampon 24 that includes topographical features such as e.g. Has grooves 32, notches 400 and raised rings 402. The tampon 24 can have an insertion end 26 and a withdrawal end 28. The tampon 24 can have a length 36, the length 36 being the dimension of the tampon 24 along the longitudinal axis 30, which begins at one end (insertion or withdrawal) of the tampon 24 and at the opposite end (insertion or withdrawal) of the tampon 24 ends. In different embodiments, the tampon 24 can have a length 36 of approximately 30 mm to approximately 60 mm. The tampon 24 may have a compressed width 38 which, unless otherwise described herein, may correspond to the largest cross-sectional dimension along the longitudinal axis 30 of the tampon 24. In some embodiments, the tampon 24 may have a compressed width 38 of about 2, 5 or 8 mm to about 10, 12, 14, 16, 20 or 30 mm before use. The tampon 24 can have a linear or non-linear shape, e.g. curved along the longitudinal axis 30.
In various embodiments, the tampon 24 can be positioned in an applicator. In different embodiments, the tampon 24 can also include one or more additional features. For example, the tampon 24 may include a "protection" feature, as described by the U.S. 6,840,927 to Hasse, U.S. 2004/0 019 317 by Takagi, U.S. 2 123 750 exemplified by Schulz, and the like. In some embodiments, the tampon 24 may include an "anatomical" shape, as described by the U.S. 5,370,633 of Villalta, exemplifying an "expansion" feature, as described by the U.S. 7 387 622 exemplified by Pauley, incorporating a "capture" feature as described by the U.S. Exemplified by Chase in 2005/0 256 484 to include an "introductory" feature, as described by the U.S. Exemplified by Harris 2 112 021 to include a "positioning" feature as described by the U.S. 3,037,506 by Penska, or incorporate a "range" feature as described by U.S. Pat. 6 142 984 by Brown as an example.
Pessary:
[0040] A pessary can be used by a woman in the treatment of urinary incontinence. In different embodiments, the pessary can be adjusted to be single-use, to be worn for a relatively short period of time, and then discarded and replaced with a new pessary (if needed). Alternatively, the pessary can be recycled for use by being sterilized between uses. The pessary can be easy to use and can optionally be inserted in the same user-friendly way in which a tampon is inserted into the vaginal cavity during menstruation, e.g. either digitally or using an applicator. In one embodiment, the pessary can be inserted in any orientation since the pessary can of course migrate in a correct treatment position as a result of the pessary geometry. Like the insertion, the removal can be done in a similar manner to a tampon, e.g. by pulling on a retraction element.
A pessary can be provided in many configurations, each of which can be compressed into a size and dimension that is more suitable for insertion into the body either digitally through the user's fingers or through the use of an applicator in the body. 4A through 4G illustrate an exemplary embodiment of a pessary 40 having a core 42, a cover 44, and a retractor 46. 5A and 5B illustrate an exemplary embodiment of a pessary 70 having a fold 84. 6A and 6B illustrate an exemplary embodiment of a pessary 90 having a strut 106.
An example of an embodiment of a pessary 40 having a core 42, a cover 44 and a retraction element 46 can be seen in Figure 4A. Referring to FIG. 4B, a perspective view of an exemplary embodiment of a core 42 for the pessary 40 is illustrated. For ease of description, the core 42 can be arranged about a longitudinal axis 54 and divided into three basic elements. An upper area 48 within the dashed field can be provided which can serve as the "anchoring element" for stabilizing the pessary 40 within the vagina. A lower portion 50 within the dashed field can be provided which can serve as the "support member" for generating support. In different embodiments, support can be generated at a suburethral location, e.g. middle urethra. In different ways
CH 711 918 B1, the roles of anchoring element 48 and support element 50 can be exchanged or divided. In one embodiment, the anchoring 48 and support member 50 of the core 42 can serve as an inner support structure for a cover 44. In one embodiment, a middle section can be provided that can act as a "knot" 52 and that can connect the anchor 48 and support member 50. The node 52 from the core 42 may have a length that may be a small portion of the total length of the core 42. In different embodiments, the length of the knot 52 may be less than about 15, 20, or 30% of the total length of the core 42. In an exemplary embodiment, the anchoring element 48 and the carrier element 50 can each have four arms, 56 and 58, respectively. In such an exemplary embodiment, two arms 56 and 58 of each of the anchor 48 and support member 50 can generally apply pressure toward the anterior vaginal wall, and two arms 56 and 58, each of the anchor 48 and the each Support member 50 can generally apply pressure toward the posterior vaginal wall adjacent the intestine. The distal part of the urethra extends into the vagina, forming a recess between the urethral bulge and the vaginal wall. The arms 56 and / or 58, which exert pressure at the front, can fit into these natural recesses on either side of the urethra. In different embodiments, the anchoring element 48 and the carrier element 50 can each have more or fewer arms 56 and 58. For example, the anchoring element 48 could have more anchoring arms 56 if there is concern about unwanted movement of the pessary 40. Referring to FIG. 4B, the anchoring element 56 may have tips 60 and the support arms 58 may have tips 62. In various embodiments, the tips 60 of the anchoring arms 56 may be rounded or spherical in nature to form smooth surfaces (i.e., without corners or tips) for covering the vaginal wall. In different embodiments, the tips 62 of the support arms 58 and / or corners of the core 42 can be blunted by a beveled edge along the anchoring arms 56 and the support arms 58 and at the tips 62, as shown in FIG. 4B. In one embodiment, the tapered edge of the support arms 58 can reduce the overall circumference of the core 42 relative to a fully spherical cross-section when in a compressed mode for packaging within an applicator. An example of an inwardly compressed core 42 is shown in FIG. To see 4G.
In various embodiments, the core 42 can be made in a variety of sizes and / or to have specific performance characteristics, such as e.g. radial extension of the support arms 58. In different embodiments, the diameter of a radially extended anchoring element 48 can be in the range from approximately 30 to approximately 33 mm. In different embodiments, the diameter of a radially expanded carrier element 50 can be in the range from approximately 34 to approximately 52 mm. In different embodiments, the core 42 may also be made from different materials and / or materials that have different performance characteristics, such as Hardness. In various embodiments, the core 42 may be constructed from a material or materials that can exhibit a Shore A hardness of 30 to 80. In various embodiments, the core 42 may be made in multiple Shore A hardnesses, including but not limited to 40, 50, and 70.
In different embodiments, the core 42 can consist of a single part (monoblock). In different embodiments, the core 42 may include an anchor 48 and a support member 50, which may be provided as separate parts (bipolar) that may be attached to form the core 42. In different embodiments, each element, whether carrier 50 or anchoring element 48, can be constructed from two or more parts. In various embodiments, the core 42 may be injection molded from liquid silicone (LSR). It is possible to use other materials, e.g. TPE, non-liquid silicone and others to be used for a core 42 of the same size. In one embodiment, materials exhibiting varying degrees of Shore A hardness can be used to make softer or more rigid cores 42. Referring to FIG. 4A, a perspective view of a core 42 that is enclosed within a cover 44 that is provided with a retractor 46, in accordance with an exemplary embodiment of the pessary 40, is illustrated. Cover 44 may optionally be any of the covers described in PCT / IL 2004/000 433; PCT / IL 2005/000 304; PCT / IL 2005/000 303; PCT / IL 2006/000 346; PCT / IL 2007/000 893; PCT / IL 2008/001 292 are described. In different embodiments, cover 44 and retraction member 46 may be constructed from the same unitary piece of material and / or simultaneously and / or in the same process. In different embodiments, cover 44 and retraction member 46 may be constructed from separate pieces of material. In various embodiments, the retraction element 46 may be constructed from a cotton material, but may also be constructed from other materials, such as e.g. those known to those of ordinary skill in the art. In different embodiments, the retraction element 46 in the pessary 40 can be about 14 cm to about 16 cm in length, although the length can be varied in different configurations of the pessary 40. In one embodiment, the retraction member 46 can be secured to the cover 44 in a position where pulling force toward the vaginal introitus can be substantially evenly distributed over the cover 44 as it collapses the support arms 58 of the core 42 within the vagina. In one embodiment, this position may be in the middle of the cover 44 in the area of the support element 50, e.g. illustrated in Figure 4A.
CH 711 918 B1 Referring to Figures 5A and 5B, an illustrative example of another embodiment of a pessary 70 is shown. The pessary 70 includes a support member 72, an anchoring member 74, a retraction member 76 and at least one fluid passage 78 that extends through the pessary 70. The pessary 70 has a distal end 80 and a proximal end 82. The distal end 80 refers to the portion of the pessary 70 that is first inserted into the vagina. The pessary 70 can have a length of about 10, 30 or 50 mm to about 70, 90 or 120 mm without the retraction element 76. The pessary 70 may have a different configuration depending on whether the pessary 70 is inserted, in use, or removed. When the pessary 70 is in use, the support member 72 of the pessary 70 may have a generally conical shape (as illustrated, for example, in Figure 5A). The support member 72 can expand from a compacted configuration and into the conical shape when the pessary 70 is inserted into the vaginal cavity. Although the carrier element 72 is described as being conical, it can also be in the form of a pear, a tear, an obconical or similar shape. Accordingly, the term "conical shape" is intended to include a shape as shown in FIG. 5A, as well as a pear shape, a teardrop shape, obconical or similar shape. Typically, the proximal end 82 of the pessary 70 will have a largest outer circumference with an in-use diameter D2 that is larger than any other point on the carrier element 72. In one embodiment, the in-use diameter D2 can range from about 20 or 40 mm to about 50 or 60 mm.
Pessary 70 may include a plurality of folds 84 that extend from distal end 80 to proximal end 82. In one embodiment, the number of folds 84 that extend from distal end 80 to proximal end 82 may be from 2 or 4 to 6. 5A and 5B illustrate a pessary 70 having 5 folds 84. Before insertion, the pessary 70 may be in a densified configuration and the folds 84 may be densified or folded inward. When the plurality of folds 84 are compressed and folded inward, the largest outer circumference of the pessary 70 may have an insertion diameter that enables easier insertion into the vagina. The insertion diameter can be smaller than the in-use diameter D2. In one embodiment, the insertion diameter can range from about 10 or 15 mm to about 20 or 25 mm. The pessary 70 may have a fluid passageway 78 that may serve at least one of two functions. First, the fluid passageway 78 can provide the space necessary in the pessary 70 to allow the folds 84 to be compressed inward to provide the pessary 70 with its insertion diameter. Second, the fluid passage 78 can facilitate the natural movement of vaginal fluids entering the pessary 70. In one embodiment, there may be a fluid passage 78 for each fold 84.
As discussed above, anchoring element 74 may be positioned at distal end 80 of pessary 70. The anchoring element 74 can prevent the pessary 70 from inadvertently moving, thereby stabilizing the pessary 70 within the vaginal cavity. In one embodiment, the anchoring element 74 can have a diameter that is in the range from approximately 10 or 15 mm to approximately 20 or 25 mm.
6A and 6B, an illustrative example of another embodiment of a pessary 90 is shown. The pessary 90 includes a support member 92, an anchoring member 94, a retraction member 96, and at least one fluid passage 98 that extends through the pessary 90. The pessary 90 has a distal end 100, a proximal end 102, and a hollow inner portion 104. The distal end 100 refers to the portion of the pessary 90 that is first inserted into the vagina. The pessary 90 may have a length of about 10, 30 or 50 mm to about 70, 90 or 120 mm without the retraction element 96.
[0053] The pessary 90 may have a different configuration depending on whether the pessary 90 is inserted, in use or removed. When the pessary 90 is in use, the pessary 90 may have a generally conical shape (as illustrated, for example, in Figure 6A). The support member 92 can expand from a densified configuration, and into the convex shape when the pessary 90 is inserted into the vaginal cavity. The convex shape of the support member 92 can provide the necessary support for the vaginal walls by contacting a front vaginal wall and a rear vaginal wall. Although the carrier element 92 is described as being convex, it can also be in the form of a pear, teardrop, obconical or similar shape. Accordingly, the term “convex shape” is intended to include a shape as shown in FIG. 6A and a pear shape, teardrop shape, obconical or similar shape. In one embodiment, support member 92 may have an in-use diameter D2 that ranges from about 20 or 40 mm to about 50 or 60 mm.
The carrier element 92 may have a plurality of struts 106 that extend from the distal end 100 to the proximal end 102. In one embodiment, the number of struts 106 extending from the distal end 100 to the proximal end 102 can be from 2,3 or 4 to 5 or 6. 6A and 6B illustrate a pessary 90 having 4 struts 106. Before insertion, the pessary 90 may be in a compressed configuration and the struts 106 may be twisted or compressed together. The pessary 90 may elongate as a result of the twisting and compression of the struts 106. When the struts 106 are twisted together, the largest circumference of the carrier element 92 can have an insertion diameter which enables an easier insertion into the vagina. The insertion diameter also enables insertion and storage within an applicator. The insertion diameter can be smaller than the in-use diameter D2 and can range from about 10 or 15 mm to about 20 or 25 mm.
CH 711 918 B1 The pessary 90 can have a hollow inner portion 104 that can serve at least one of two functions. First, the hollow inner portion 104 can provide the space necessary in the pessary 90 for the struts 106 to twist, nest, and compress to provide the pessary 90 with its insertion diameter. Second, the hollow inner portion 104 may provide a fluid passage 98 to facilitate the transportation of fluids entering the pessary 90.
[0056] As discussed above, anchoring element 94 may be positioned at distal end 100 of pessary 90. The anchoring element 94 can prevent the pessary 90 from inadvertently moving, thereby stabilizing the pessary 90 within the vaginal cavity. In an exemplary embodiment, anchor member 94 does not apply significant pressure to the wearer's vagina and / or urethra, thereby increasing comfort. In one embodiment, the anchoring element can have a diameter which is in the range from approximately 10 or 15 mm to approximately 20 or 25 mm.
In addition, the pessaries 70 and 90 may each have a retraction member 76 and 96, which is attached to the pessary 70 and 90, respectively. The retraction element 76 and 96 can be a separate part or can each be formed in one piece with the pessary 70 or 90. Pulling the retraction member 76 or 96 can cause the support member 72 or 92 to collapse inward on itself to reduce the greatest amount to the cross-sectional area of the support member 72 or 92 of the pessary 70 or 90, respectively, for easier removal.
The pessary 70 or 90 may comprise a resilient elastic material. As used herein, the term "compliant" material and variants thereof refer to materials that can be molded into an initial shape, the initial shape subsequently with mechanical deformation, such as e.g. Bending, compacting or twisting the material, can be formed into a stable second shape. The compliant material essentially returns to its initial shape when the mechanical deformation ends. The pessary 70 or 90 can initially be molded into the in-use configuration as described above. The pessary 70 or 90 can then be compacted for insertion or storage within an applicator. After the pessary 70 or 90 is inserted, the pessary 70 or 90 can transition from the compacted configuration to the in-use configuration due to the ability of the elastic material to relax or spring back into its original shape.
The pessary 70 or 90 may also be covered with a suitable biocompatible covering material, as is known to those of ordinary skill in the art. The pessary 70 or 90 may be encased in a cover that may reduce friction during use, assist in controlling the pessary 70 or 90 during insertion and removal, and may support the pessary 70 or 90 in position remains and / or can create more contact area for applying pressure to the vaginal walls.
Contraption:
The present invention relates to a device which, in the compression step of a manufacturing process of a tampon (such as the tampon 24 illustrated in FIGS. 3A to 3D) or a pessary (such as the pessary 40, 70 or 90, the 4A-4C, 5A, 5B, 6A and 6B) can be used. The device has a plurality of press unit support structures, each of which is capable of supporting at least one press unit. Each individual press unit can be a material such as a pledget or an undensified pessary. Since the device has a plurality of individual pressing units, the device can compact more than one material at a time.
Each press unit support structure is able to rotate about an axis. In different embodiments, the rotation of each press unit support structure about an axis can occur continuously. In different embodiments, the rotation of each press unit support structure about an axis can occur intermittently. When each press unit support structure rotates about the axis, each press unit carried by the press unit support structure can also rotate about the same axis. The rotation of a press unit support structure can occur independently of any other press unit support structure. Each press unit support structure can undergo a change in speed during a single revolution around the axis. Therefore, a press unit support structure can rotate at any time at a speed that can differ from the speed of another press unit support structure in a single revolution of the press unit support structure around the axis. Therefore, the spatial relationship between a single press unit carried on a press unit support structure and another press unit supported on a second press unit support structure can vary.
In different embodiments, a device can carry a plurality of individual pressing units. In different embodiments, the device can carry at least 2, 3, 4, 5, 6, 7, 8, 9 or 10 press units. In different embodiments, the device can carry at least 2, 3, 4 or 5 press units to 6, 7, 8, 9 or 10 press units. Each press unit can be releasably attached to its respective press unit support structure. Since each press unit can be detachably attached to a press unit support structure, the operation of the device can be stopped if a press unit should work incorrectly, the press unit can be removed from the press unit support structure by disengaging releasable fastenings (such as screws or pins), and the faulty press unit can be replaced with a working press unit.
CH 711 918 B1 During a single revolution of a press unit support structure about an axis, each press unit positioned on a press unit support structure can go through a complete compression cycle to compress a material positioned within the chamber of the press unit. The compaction cycle can begin by loading an uncompressed material into a single press unit, which can be in a fully open configuration. The fully open configuration of the press unit can provide a chamber into which the material can be loaded. After loading a material into the chamber of the press unit, the press unit can begin to transition from the fully open configuration to a partially closed configuration to a fully closed configuration. Compression of the material within the chamber can begin during the transition from the fully open configuration of the press unit to the fully closed configuration of the press unit as the volume of the chamber decreases during this transition. Once the press unit has reached the fully closed configuration, the press unit can remain in the fully closed configuration for as long as is considered appropriate for the single rotation of the press unit support structure about the axis. The dwell time can affect the ability of the material under compression to maintain a compressed configuration after removal of the compression pressure. When the material in the chamber has been compacted to the desired level of compaction, the press unit can begin to transition from the fully closed configuration to a partially open configuration to a fully open configuration. When the press unit changes from the fully closed configuration to a fully open configuration, the volume of the chamber can increase. Since the material in the chamber has recently undergone compaction, the material may start to snap back from the compaction and expand as the compaction pressure decreases. In order to minimize the expansion of the material to its original starting dimensions, the material can be unloaded from the chamber in various embodiments while the press unit is in a partially open configuration. In different configurations, where the compacted material is stably in the compacted configuration, discharge of the material from the chamber can occur when the press unit has reached the fully open configuration. After unloading the compacted material from the chamber of the press unit, the press unit can repeat the compaction cycle in a new revolution of the press unit support structure around the axis. During a compression cycle and with a single revolution of the press unit support structure about an axis, the press unit can move from a fully open configuration to a partially closed configuration to a fully closed configuration, and from a fully closed configuration to a partially open configuration to a fully open configuration pass.
The length of time that the press unit remains in each configuration (e.g. fully open, partially closed, fully closed, partially open) can be any length of time during the single revolution about the axis that is suitable for compacting the material to the desired one Size dimensions and the desired compression stability is considered. The dwell time of the material in a press unit in a fully closed configuration during the compression cycle can therefore be any length of time that is considered suitable for compacting the material to the desired size dimensions and the desired compression stability. In various embodiments, with a single revolution of the press unit support structure about an axis, material to be compacted can be loaded into a press unit in a fully open configuration, the material can be compacted, and the compacted material can be unloaded from the press unit after the press unit about 90-, 120-, 150-, 180-, 210-, 240-, 270-, 300-, 330- or 360-degree rotation ± 10 ° around the axis around which the press unit carrier structure rotates , Compression of a material within a press unit can begin at any point after the material is loaded into the press unit, and can continue until the press unit is at least about 90-, 120-, 150-, 180-, 210-, 240-, 270-, 300-, 330- or 360-degree rotation ± 10 ° around the axis. For example, a device can have three press unit support structures and each press unit support structure can carry one press unit. In such an example, a material can be loaded into a press unit of a press unit support structure, can undergo compression and can be unloaded from this press unit at approximately the 120, 240 or 360 degree position ± 10 °. It is understood that more or fewer press unit support structures can change the degree positions at which a material can be unloaded from a press unit.
[0065] In different embodiments, a device can carry a pressing unit that can compress a material in an axial direction. In various embodiments, a device can carry a press unit that can compact a material in a non-linear direction, such as e.g. Compression in an arcuate movement predominantly in a radial direction. In different embodiments, a device can carry a pressing unit, which can have a compression surface that can decrease with the compression movement. In different embodiments, a device may carry a press unit that may have the ability to compact a material using two types of compaction (i.e., axial direction compaction, non-linear direction compaction, and / or with a decreasing compaction area). As a non-limiting example, a device can carry a press unit that can compact a material in an axial direction and can compact the same material in a non-linear direction. In such an embodiment, the axial direction compression can occur before or after the non-linear direction compression.
In various embodiments, a device can carry at least two axial direction pressing units. In different embodiments, a device can be at least two non-linear direction presses
CH 711 918 B1. In different embodiments, a device can carry at least two pressing units, each of which can have a compression surface that can decrease with the compression movement. In different embodiments, a device can carry at least two press units, each of which can have the ability to provide two types of compaction for a material. In different embodiments, a device can carry at least two press units, each of which can provide a type of compression that is different from the other press unit. In one embodiment, a device can carry at least two press units, wherein one press unit can provide compression in an axial direction and another press unit can provide compression in a non-linear direction or can have a compression surface that can decrease with the compression movement. In one embodiment, a device can carry at least two pressing units, wherein one pressing unit can provide compression in a non-linear direction and another pressing unit can provide compression in an axial direction or can have a compression surface which can decrease with the compression movement. In one embodiment, a device can carry at least two press units, wherein one press unit can have a compression surface that can decrease with the compression movement, and another press unit can provide compression in an axial direction or in a non-linear direction.
In different embodiments, the dwell time for a press unit can be varied. For example, in various embodiments, it may be desirable to compress material for a longer period of time. Increasing the dwell time during which a material is compacted can increase the stability of the compacted material. For example, in different embodiments, the device can have a plurality of press unit support structures, each press unit support structure being able to carry a press unit. Each press unit support structure can move about an axis independently of any other press unit support structure. The press unit support structures can be configured to rotate over periods of low dwell speed, acceleration, high dwell speed, and deceleration. The dwell time of compression can therefore be varied.
In different embodiments, the compacting step can be carried out without applying any heat to the material, e.g. a pledget or pessary. In other words, the material can be compacted without applying external heat to the device or the material. In different embodiments, the compression step may include applying heat to the material. In other words, the material can be compacted, applying external heat to the device or the material. In different embodiments, the compression step can be integrated or one or more additional stabilization steps can follow. This secondary stabilization can serve to maintain the compacted shape of the tampon or pessary.
7, a schematic example of an embodiment of an apparatus 240 is illustrated. The device 240 can have a plurality of press unit support structures 242 and each press unit support structure 242 can support a press unit 254. The illustrated example of device 240 provides three press unit support structures 242. It is easy to understand that the device 240 can include any number of press unit support structures 242. Each press unit support structure 242 may be configured to be rotated by a drive ring 244 and may be coaxially and rotatably connected to a common countershaft 246 on a first axis 248. Press unit support structures 242 may be configured to rotate about first axis 248 in the direction indicated by arrow 250. Each press unit support structure 242 may include a support member 252 that may be rotatably connected to the countershaft 246 so that each press unit support structure 242 can be rotated independently. The radial inner end of the support member 252 of each press unit support structure 242 can be rotatably connected to the countershaft 246 by any technique known to those skilled in the art, including, for example, using conventional bearings.
The device 240 may include a drive ring 244 that may be configured to rotate each die assembly support structure 242 at a variable speed. The inner radial end of the drive ring 244 may be rotatably connected to a fixed shaft 256 on a second axis 258. The drive ring 244 may be configured to rotate at a constant or variable speed about the second axis 258 by a drive means in the direction indicated by arrow 250. The drive means may include a motor that is operatively connected to the drive ring 244 by suitable gears and drive belts. Therefore, when in use, the motor can rotate the drive ring 244, which in turn can rotate the press unit support structures 242 at the desired speed. In order to provide a variable rotational speed of each press unit support structure 242, the second axis 258 of the drive ring 244 can be offset from the first axis 248 of the press unit support structure 242. The offset distance between the first axis 248 and the second axis 258 can be any distance that can provide the desired variations in the speed of the die support structures 242.
The device 240 can have at least one coupling arm 260 which is pivotally connected to the drive ring 244 about a pivot point 262. The device 240 can have a coupling arm 260 for each press unit support structure 242. Coupling arm 260 can independently connect drive ring 244 to each respective press unit support structure 242. Each clutch arm 260 may have a cam end and a crank end 264 that extend radially outward from pivot 262. The cam end and crank end 264 are designed to remain at a fixed angle to each other. For example, a first line that passes through the pivot point
CH 711 918 B1
262 and the cam end, and a second line extending through pivot 262 and crank end 264 define an angle from about 30 degrees to about 180 degrees to provide variable speed. The cam end may follow a predetermined curved path and the crank end 264 may be slidably connected to the respective crimp support structure 242. When the drive ring 244 is rotated, the cam end of each clutch arm 260 is guided along the curved path and the crank end 264 of each clutch arm 260 slidably engages the respective press unit support structure 242, thereby pivoting the clutch arm 260 about the pivot point 262 The pivoting of the clutch arm 260 and the offset crank movement of the drive ring 244 vary the effective drive radius of each press assembly support structure 242 and rotate each press assembly support structure 242 at a variable speed. The press unit support structures 242 can therefore be configured to rotate over periods of low dwell speed, acceleration, high dwell speed, and deceleration. A press unit 254 can therefore also undergo variations in its spatial relationship to other press units 254 that are carried by the device 240.
In different embodiments, each press unit supported by a press unit support structure may be in a different configuration of the compression cycle than other press units supported by other press unit support structures. In such embodiments, each press unit may undergo a different configuration of the compression cycle at any time during the rotation of the press unit support structure about the axis. For example, a material can be loaded into a first press unit when the press unit support structure rotates about an axis at an initial point in time. The press unit support structure can continue to rotate about an axis and the first press unit can transition from a fully open configuration to a partially closed configuration to a fully closed configuration to compress the material loaded into the first press unit. While the first press unit is transitioning from the fully open configuration to the fully closed configuration, a second material may be loaded into a second press unit for compression which is supported by a second press unit support structure. It is understood that the second material can be loaded into the second press unit even though the first press unit is in one of the configurations of the compression cycle. Because the press units may be in different configurations during the rotation about the axis, in different embodiments it may be possible to load the material for compacting into a press unit in substantially the same time as that in which one compacted material is from another Press unit is unloaded. In different embodiments, each press unit can be operated and actuated independently of any other press unit carried by the press unit support structure during one rotation of the press unit support structures about an axis. In other words, each press unit can be out of phase with any other press unit. When the press units are out of phase with each other, they can go through a different configuration of the compression cycle at any time.
In different embodiments, during a rotation of the plurality of press unit support structures about an axis, each press unit can be operated and actuated essentially synchronously with every other press unit that is carried by the device. In other words, each press unit can be in phase with any other press unit. When the press units are in phase with each other, they can each go through the configurations of the compression cycle substantially in synchronization with any other press unit. For example, with one rotation of the plurality of press unit support structures about the axis for each press unit, a material can be loaded into the press unit in substantially the same time as when the press units are in the fully open configuration of the compression cycle. The press unit support structures can continue to rotate about the axis and each press unit can transition from the fully open configuration to the fully closed configuration in substantially the same time. The press unit support structures can continue to rotate about the axis and after compacting the material in each press unit, the press unit can transition from the fully closed configuration to the fully open configuration. As described above, the compacted material can move from the press units during the transition from the fully closed configuration to the fully open configuration, i.e. in the partially open configuration, or when the press units have reached the fully open configuration. In different embodiments, at least two press units can be in a fully open configuration at a time during the rotation of the press unit support structures around the axis. In different embodiments, at least two press units can be in a partially closed configuration at a time during the rotation of the press unit support structures around the axis. In different embodiments, at least two press units can be in a completely closed configuration at a time during the rotation of the press unit support structures about an axis. In different embodiments, at least two press units can be in a partially open configuration at a time during the rotation of the press unit support structures about an axis.
In different embodiments, at a time during a revolution of at least two press unit support structures around an axis, a first press unit carried by one of the press unit support structures of the device can be in a fully open configuration, a partially closed configuration Configuration, a fully closed configuration, or a partially open configuration, and a second press unit supported by a second one of the press unit support structures of the device may be in a fully open configuration, a partially closed configuration, a closed configuration
CH 711 918 B1 on or a partially open configuration. In such a configuration, the configuration of the first press unit of the device may be the same as or different from the configuration of the second press unit of the device. In different embodiments, an additional pressing unit (s) can be carried by the device. In these different embodiments, at one point in time during a revolution about an axis of another press unit support structure, the additional press unit (s) of the device can be in a configuration (fully open, partly closed, fully closed or partly open) that may be the same or different than at least one other press unit carried by the device.
As described above, a device 240 (or similar device) may support a plurality of press units 254 to make a material, such as e.g. a pledget or an undensified pessary to condense. As described above, a press unit 254 may provide compression in the axial direction, in a non-linear direction, a compression surface that decreases during the compression movement, or a combination of these types of compression. The press unit 254 may therefore be in the form of an axial direction press unit, a non-linear direction press unit, a press unit with a decreasing compression area, or a combination thereof. For the sake of clarity of the description, the disclosure herein can only relate to the compression of a budget. However, it is understood that the compression described can be applied to a pessary.
The compression in the axial direction can be a material such as e.g. compress a pledget or pessary, in the longitudinal direction, the lateral direction or in the longitudinal direction and the lateral direction. Referring to FIGS. 8A through 8E, a schematic illustration of compaction of a material in the longitudinal direction using an axial direction press unit 300 is presented. A pledget 22 can be inserted into a compression chamber 302 of the axial direction press unit 300 (as shown in Fig. 8A, for example). The pledget 22 can be urged into the chamber 302 by a reciprocating push rod 306. The pledget 22 can be urged into the chamber until it reaches the end of the chamber 302, which may correspond to the area of a reciprocating piston 308 (as shown in Fig. 8B, for example). After the pledget 22 is pushed into the chamber 302, the chamber 302 can be closed. The closing of the chamber 302 can be influenced by the push rod 306 and the piston 308 remaining at least partially within the chamber 302, whereby all openings to the chamber 302 are closed. It is understood that alternative means can close chamber 302, for example separate closing means can be provided. After the pledget 22 is fully inserted into the chamber 302, the pledget 22 can be compressed in the longitudinal direction by using the plunger 308 to apply a force against the end of the pledget 22 (e.g., as shown in Fig. 8C). Once the pledget 22 has been compacted to the desired longitudinal direction length, the compacting force can be released from the chamber 302 by retracting the piston 308 (as shown, for example, in Figure 8D). A tampon 24 can be displaced from chamber 302. In one embodiment (such as shown in Fig. 8E), push rod 306 can push tampon 24 out of chamber 302.
Referring to Figures 9A to 9C, a schematic illustration of compression of a material in the lateral direction is illustrated using an axial direction press unit 320. A pledget 22 can be inserted into a compression chamber 322 of the axial direction pressing unit 320. The pledget 22 can be urged into the chamber 322 by a reciprocating push rod 324. The pledget 22 can be urged into the chamber 322 until it reaches the end of the chamber 322 (e.g., as shown in Fig. 9A). After the pledget 22 is fully inserted into the chamber 322, the pledget 22 can be compressed in the lateral direction by using the push rod 324 to apply a force against the pledget 22 (e.g., as shown in Fig. 9B). Once the desired width has been reached, a tampon 24 can be displaced from chamber 322 by using a plunger 326 to push the tampon 24 out of chamber 322 (e.g., as shown in Figure 9C). Although only one push rod 324 is illustrated in FIGS. 9A through 9C, it should be understood that more than one push rod can be used in an axial direction press unit that compresses a material in a lateral direction. For example, several push rods can be positioned radially around a material, e.g. a pledget or an uncompacted pessary, which can apply a compaction laterally against the material during compaction. An exemplary device having multiple push rods positioned radially around a material and capable of applying compression laterally during compression against the material is disclosed in U.S. Pat. No. 2,798,260 by Niepmann, the disclosure of which is hereby incorporated by reference in its entirety.
10 and 11A through 11C, a schematic illustration of an exemplary embodiment of a non-linear direction press unit 330 is illustrated. The non-linear direction pressing unit 330 can, for example, have eight levers 332, which are each carried on an adjusting ring 334 and can be rotated about a bearing journal 336 within certain limits. At its radially outer end, each lever 332 can be pivotally connected by a coupling pin 338 to a coupling lever 340, the other end of which is pivotably supported on a stationary ring bearing 344 by means of a pin 342. The pins 342 and the bearing pins 336 can each be positioned on a circle, the spacing of these bolts from one another being a result of the division specified by the number of levers 332 on the respective circle. The levers 332, which can be designed as an angle lever and which can be provided with a protruding portion 346 between their bearing location by the bearing pin 336 on the adjusting ring 334, and their articulation by a coupling pin 338 on the coupling lever 340, further comprise a lever arm 348, which is positioned radially inward
CH 711 918 B1, and which carries at its end, which is positioned radially inward, a tool carrier 350, to which a pressing tool 352 can be attached. Each pressing tool 352 can be provided with a pressing edge 354.
By rotating the adjusting ring 334, which can be arranged concentrically in relation to the stationary ring carrier 344, the lever 332 can be pivoted. When the setting ring 334 is turned counterclockwise, these levers 332 can be moved radially inward with their pressing tools 352. Therefore, the levers 332 pivot about the bearing pins 336, which can be arranged on the adjusting ring 334, the coupling pins 338, which are connected to the fixed ring bearing 344 via the coupling levers 340, producing the pivoting movement which causes a radially inward movement of the pressing tools 352 results. The pressing tools 352 are therefore “closed”. When the adjusting ring 334 is turned clockwise, the pressing tools 352 are “opened”.
11A illustrates that in the open starting position, the pressing edges 354 are not oriented in the direction of the center of the non-linear direction pressing unit 330, but tangentially in the direction of a circular cylinder 356 which surrounds the longitudinal central axis. It is therefore achieved that the pressing forces which are applied by the pressing tools 352 are not aligned in the center, but rather tangentially in the direction of a circle which surrounds the longitudinal center axis of the tampon 24 to be produced. The eccentric orientation of the pressing tools 352 in the direction of the center of the non-linear direction pressing unit 330 can be adjusted to any desired position by respectively positioning the bearing pin 336 and by providing a corresponding construction of the levers 332 and the coupling lever 340.
In the open home position of the non-linear direction press unit 330, a pledget 22 can be inserted into the opening between the press tools 352 (as illustrated, for example, in Fig. 11A). By rotating the adjusting ring 334 counterclockwise relative to the fixed ring bearing 344, the dies 352 are first placed in a partially closed position (as illustrated in FIG. 11B). With this pivoting movement, the levers 332 are moved with the adjusting ring 334, and pivoted about the bearing pins 336 of the rotating adjusting ring 334 by the coupling levers 340, which are articulated on the stationary ring bearing 344, so that the pressing tools 352 perform a movement which results from a Combination of a tangential and a radial component exists. During this movement, the deformation forces exerted by the pressing tools 352 and their pressing edges 354 lead to a volume reduction of the pledget 22, which is uniform around the circumference, and convert the pledget 22 into a tampon 24, which has a core and ribs as well Has grooves surrounding the core (such as illustrated in FIG. 11C). 3B, a tampon 24 is illustrated having ribs 34 and grooves 32.
In various embodiments, it may be desirable to manufacture a tampon 24 that has ribs, grooves, and notches. 3C provides an illustration of a tampon 24 having ribs 34, grooves 32, and notches 400. In various embodiments, it may be desirable to manufacture a tampon 24 that has ribs 34, grooves 32, notches 400, and a raised ring 402. 3D provides an illustration of a tampon 24 having ribs 34, grooves 32, notches 400, and two raised rings 402. In different embodiments, a press unit can be used to provide ribs, grooves, notches and / or raised rings for a tampon. Although the following disclosure is provided with respect to, for example, ribs, grooves, notches and raised rings in relation to a non-linear direction press unit, it should be understood that other press units, such as e.g. the axial direction press units described above and a press unit having a decreasing compaction surface, which will be described later, can also provide such ribs, grooves, notches and / or a raised ring using the disclosure as compared to a non-linear direction Press unit provided, and applies it in the direction of an axial direction press unit or a press unit which has a compression surface that decreases with the compression movement. Referring to FIGS. 12 and 13, schematic illustrations of the end view of a non-linear direction press unit 370 are illustrated that grooves 32 and notches 400 may provide. Generally, the non-linear direction press unit 370 may use one or more dies that can reciprocate relative to one another to form a mold cavity 378 therebetween. If a material such as a pledget 22 positioned within the mold cavity 378, the dies can be actuated to move toward each other and compact the material.
Referring now to FIG. 12, an end view of an exemplary pledget 22 in an exemplary non-linear direction press unit 370 is illustrated. The non-linear direction press unit 370 may include any suitable number of notch press claws 372. For example, the non-linear direction press unit 370 may include 1, 2, 3, 4, 5, 6, 7, 8, 9, or at least 10 notch press claws 372. In the embodiment of FIG. 12, eight indentation pressing claws 372 are illustrated, which are evenly spaced in the circumferential direction 374 of the pledge 22. In various embodiments, the non-linear direction press unit 370 may also include any suitable number of grooving claws 372. For example, the non-linear direction press unit 370 may include 1, 2, 3, 4, 5, 6, 7, 8, 9 or at least 10 grooving claws 376. The indentation press claws 372 and the groove press claws 376 (if present) together define a mold cavity 378. In the embodiment of FIG. 12, eight groove press claws 376 are illustrated that are evenly spaced in the circumferential direction 374 of the pledge 22. In addition, FIG. 12 representatively illustrates the eight notch press claws 372 that alternate
CH 711 918 B1 are spaced gently and evenly with the eight grooving claws 376 in the circumferential direction 374 of the pledge 22. Together, the eight notch press claws 372 and the eight groove press claws 376 define the mold cavity 378.
Figure 12 representatively illustrates the pledget 22 provided for the mold cavity 378 of the non-linear direction press unit 370 in an undensified configuration. Referring to Fig. 13, the non-linear direction press unit 370 of Fig. 12 is illustrated at the peak of compression in the vertical direction 380 (i.e., in a compressed configuration). In FIG. 13, the eight notch press claws 372 and the eight groove press claws 376 have moved in the direction 380 that is perpendicular to and / or radially inward toward the longitudinal center line 382 to compact the pledget 22. The notch press claws 372 include one or more discrete projections 384. The discrete projections 384 penetrate the pledget 22 during the compression step to form discrete notches 400.
14, 14A, 15, 15A, 16, 16A, 17, 17A, 17B, 18 and 18A illustrate different broadside views of exemplary indentation press claws 372 having profiling surfaces 386 and discrete projections 384 extending therefrom. The profiling surfaces 386 are adapted to compress the pledget 22 and provide a shape to a portion of the outer surface of the resulting tampon 24. Similarly, the discrete projections 384 are adapted to compact the pledget 22 and then penetrate the pledget 22 to form the discrete notches 400, which are believed to integrate the absorbent layers or structure near the point of penetration , The point of penetration results in a notch 400.
In different embodiments, the discrete projections 384 may have any suitable shape, dimensions, and / or volume. In various embodiments, discrete projections 384 may be in the form of a pyramid, cone, cylinder, cube, obelisk, or the like, or any combination thereof. The discrete projections 384 may have a cross section that is bulbous, rectilinear, trapezoidal, polygonal, triangular, any other suitable shape, or any combination thereof. The discrete projections 384 may be in the form of a stylus that is cylindrical, conical, elliptical, and any other suitable shape. The discrete projections 384 need not be circumferentially symmetrical. The discrete projections 384 can be elongated and extend partially or completely over the area of the profiling surface 386. The discrete projections 384 can be in a waveform that extends partially or completely over the area of the profiling surface 386. In different embodiments, the discrete projections 384 may have an orientation with respect to the longitudinal axis 30 of a resulting tampon 24 that is substantially parallel, perpendicular, angled, or a combination thereof. In different embodiments, the discrete projections 384 can be a cavity in the profiling surface 386 or a curved surface on the profiling surface 386.
In different embodiments, the discrete projections 384 may be in the form of a pyramid, such as those illustrated in Figures 14 and 14A. In different embodiments, the discrete projections 384 may be in the shape of a cone with a rounded apex, such as the one illustrated in Figures 15 and 15A. In different embodiments, the discrete projections 384 may have a rectangular shape on the apex with at least one curved side, such as e.g. those illustrated in Figures 16, 16A, 17 and 17B. In different embodiments, the discrete projections 384 may be in the form of a cone with a relatively rounded apex, such as e.g. the one illustrated in Figs. 18 and 18A. In different embodiments, the indentation press claws 372 may have discrete projections 384 in the form of a discrete relief 388, such as e.g. 17 and 17B. The discrete relief 388 may extend into the indentation press claw 372 and may have any suitable shape. For example, as illustrated in FIG. 17, the discrete relief 388 may have a curved shape. In such embodiments, when a plurality of notch press claws 372 compress the pledget 22 into the tampon 24, a circumferentially raised ring 402 is formed, as illustrated in FIG. 3D.
In different embodiments, one or more notch press claws 372 may include a first discrete projection 392 that has a first shape 394 and a second discrete projection 396 that has a second shape 398 that differs from the first shape 394 , For example, FIG. 17 representatively illustrates a first discrete projection 392 having a first shape 394, the first shape 394 being a cone (FIG. 17A). 17 also representatively illustrates a second discrete projection 396 having a second shape 398, the second shape 398 being more cube-shaped. In different embodiments, a non-linear press unit 370 may include a first notch press claw 372 having a first discrete projection 392 having a first shape 394 and a second notch press claw 372 having a second discrete projection 396 having one has second shape 398. In different embodiments, the first shape 394 and the second shape 398 may be the same or different. For example, in different embodiments, the first notch press claw 372 may have first discrete projections 392 that are in the shape of cones, and the second notch press claw 372 may have second discrete projections 396 that have a pyramid shape.
In different embodiments, the discrete projections 384 may extend any suitable distance from the profiling surface 386. For example, referring now to FIGS. 14A, 15A, 16A, and 17A, the discrete projections 384 may have an extension dimension 406 of at least 0.5.1, 1.5.2, 2.5, or 3 mm. In different embodiments, the indentation press claws 372 can discrete projection
CH 711 918 B1 nen 384, wherein two or more of the discrete projections 384 may have the same extension dimension 406, such as those illustrated in Figs. 14 and 15. In different embodiments, one or more indentation press claws 372 may have two or more discrete projections 384 that may have different extension dimensions 406, such as those illustrated in Fig. 18. 18 illustrates a notch press claw 372 that has a profiling surface 386, wherein a first discrete projection 384 has a first extension dimension 407 (FIG. 18A) and a second discrete projection 384 has a second extension dimension 408 (FIG. 18A). As illustrated, the second extension dimension 408 is larger than the first extension dimension 407. In various embodiments, a non-linear direction press unit 370 may include a first notch press claw 372 that has a first discrete projection 392 that has a first extension dimension 407. Similarly, the non-linear direction press unit 370 may include a second notch press claw 372 having a second discrete projection 396 having a second extension dimension 408. In different embodiments, the first extension dimension 407 and the second extension dimension 408 may be the same or different. For example, in different embodiments, the first notch press claw 372 may include discrete projections 384 that have an extension dimension 406 that is less than the extension dimension 406 of the discrete projections 384 of the second notch press claw 372. Since the profiling surfaces 386 of the indentation pressing claws 372 define the compressed diameter of the tampon 24, the extension dimension 406 is equal to the depth of penetration of the discrete projection 384 into the pledget 22 during the compression. The depth of penetration can be defined as a percentage of the compressed diameter of the resulting tampon 24. For example, in different embodiments, the discrete projections 384 can have a penetration depth of at least about 20%, 30%, 40% or 50% of the compressed diameter of the tampon 24. For example, in other embodiments, the compressed diameter may be approximately 6.6 mm and the extension dimension 406 may be approximately 2.55 mm, such that the depth of penetration is 39% of the compressed diameter.
In different embodiments, the discrete projections 384 may have a volume of at least about 3, 4, or 5 cubic millimeters. In specific embodiments, the discrete projections 384 may be truncated cones that have a base diameter of approximately 2.523 mm and a height of approximately 2.546 mm with a volume of approximately 5.045 cubic millimeters. In different embodiments, the volume and / or shape of the discrete projections 384 can be selected to provide the desired layer integration. In various aspects, at least about 80%, 90%, 95%, or 100% of the volume of the discrete projections 384 can penetrate the compressed tampon 24. Therefore, in these embodiments, the displaced volume of absorbent material that initially forms the discrete notches 400 is at least about 80%, 90%, 95%, or 100% of the volume of the discrete projections 384.
The tampon 24 may have a first half, which may have an insertion end 26, and a second half, which may have a withdrawal end 28. In different embodiments, discrete projections 384 can penetrate the pledget 22 such that there are more discrete indentations 400 formed in the first half than in the second half of the resulting tampon 24. This is believed to be advantageous because the retraction member 14 is often anchored in the first half of the tampon 24 as it extends from the retraction end 28 of the second half. As such, the retraction forces are first directed to the first half. Therefore, it is believed that greater layer integration across the discrete notches 400 counteracts the retraction forces in the first half and helps maintain the integrity of the tampon 24. In different embodiments, the first half has at least 25%, 50%, or 75% more discrete notches 400 than the second half. In different embodiments, all of the discrete notches 400 may be in the first half. In different embodiments, at least 60%, 70%, 80% or 90% of the discrete notches 400 may be in the first half.
In different embodiments, one or more raised circumferential rings 402 can be formed around the tampon 24, as illustrated in FIG. 3D. In different embodiments, a second circumferentially raised ring 402 can be formed around the tampon 24, as illustrated in FIG. 3D. In different embodiments, the first circumferentially raised ring 402 and the second circumferentially raised ring 402 can be separated by a circumferential groove 404. In different embodiments, the resulting tampon 24 may have one or more longitudinal rows of discrete notches 400. In different embodiments, a first row of discrete notches 400 may be aligned in the circumferential direction with a second row of discrete notches 400. In different embodiments, a first row of discrete notches 400 may be graduated in the circumferential direction with a second row of discrete notches 400. In different embodiments, the first and second rows of discrete notches 400 may be adjacent rows. In different embodiments, the longitudinal rows of discrete notches 400 may extend around the circumferential direction of the tampon 24, and may be graded such that adjacent rows of discrete notches 400 are not aligned.
In different embodiments, one or more grooves 32 can be formed in the tampon 24. Similarly, a plurality of grooves 32 that provide a plurality of rows of discrete notches 400 may be formed, with the grooves 32 and rows of discrete information 400 in the circumferential direction of the tampon
CH 711 918 B1 can be alternated, trained. The grooves 32 can be linear, non-linear, helical, continuous, interrupted, wide, narrow, any other suitable shape, size, orientation, or any combination thereof. Referring to FIGS. 19 and 20, a schematic illustration of an exemplary embodiment of a press unit 410 is illustrated, which may have a compacting surface that decreases during the compacting movement. The press unit 410 may include compression surfaces and a compression mechanism to move the compression surfaces in a non-linear motion as the material is compressed. As the press unit 410 compresses, the compaction area decreases and the circumferential gap formation is kept near zero over the relevant area of the press unit 410. The operating range of the press unit 410 is defined as the range between the maximum compression diameter and the minimum compression diameter. The ratio between the initial compression diameter and the final compression diameter, or the compression ratio that can be achieved with this press unit 410, is greater than 1,2, 3, 4, 5, 6, 7, 8, 9, 10, 15 or 20 The initial compaction diameter is the effective diameter of the material prior to compaction, which is essentially the minimum diameter to which the press unit 410 must be opened to receive the material. The diameter in the previous determinations is the diameter of the hypothetical cylinder 442 defined below. The final compression diameter is the desired diameter of the material after compression. By maintaining the peripheral gap formation over the relevant area of the press unit 410 near zero, the compression claws can reinforce each other to improve the stability of the device. A press unit 410 for making an exemplary tampon 24 is illustrated in FIGS. 19 and 20. The press unit 410 used as an example here includes eight levers 412 (see Figures 19-21), although any suitable number of levers 412 can be included. The center of the press unit 410 defines a central longitudinal axis 414 that is at the point where the claws 416 meet when the levers 412 and claws 416 are at their innermost range of motion. Each lever 412 is connected to a pivot 420 on a fixed ring 418, and is pivotable about the pivot 420 within certain limits. Each lever 412 has an outer lever end 422, which is connected by a first and second coupling pin 424, 426 to adjacent chain links 428 as part of the mechanical drive (not shown). The first and second coupling pins 424, 426 and pivots 420 may each be positioned in a generally circular arrangement or in any other suitable arrangement. The spacing between adjacent coupling pins 424, 426 and between adjacent trunnions 420 is determined by the number of levers 412 that must be included within the circle.
The levers 412 are constructed as angle levers and each include a lever arm 430 that is positioned radially inward. Each lever 412 has a longitudinal lever axis 432 that extends from the outer lever end 422 through the pivot 420 to a radially inner end portion 434 of each lever arm 430. The radially inner end portion 434 includes a claw 416 used in compression. The claw 416 may be integrally formed with the lever arm 430, and therefore may be a portion of the lever 412 itself, the claw 416 may be on the lever arm 430 on a tool carrier 436 on the the radially inner end portion 434 of the lever arm 430, or the claw 416 may be connected to the lever 412 in any suitable manner. In different embodiments, the number of levers 412 and claws 416 can be 3, 4, 5, 6, 8, 10, 12, 16 or any other suitable number.
Each claw 416 includes a compression surface 438 and a claw edge 440. The compression surface 438 defines a plane that is generally parallel to the longitudinal axis 432 of the lever. Each claw 416 protrudes toward an adjacent claw 416, with the adjacent claw 416 positioned in a clockwise direction from the first claw 416. The claw edge 440 of a claw 416 is located near the compaction surface 438 of the clockwise adjacent claw 416. The topography of a given claw edge 440 substantially matches the topography of the compression surface 438 of an adjacent claw 416. The press unit 410 is arranged so that a plane defined by the compression surface 438 of each claw 416 is tangent to the central one at all points in the compression cycle Longitudinal axis 414 is located.
[0097] In addition, each compaction surface 438 defines an area exposed to the material to be compacted. This area generally lies between the claw edge 440 of a particular claw 416 and a line or point projected onto the claw 416 through the plane of the compacting surface 438 of an adjacent claw 416 or through or adjacent to the claw edge 440 of an adjacent one Claw 416 is touched. For example, a press unit 410 cooperates with eight claws 416 to form a generally octagonal compression cavity. One side of the octagon defines the area of a compacting surface 438 that is exposed to the material to be compacted. As the claws 416 move inward, the octagon and area shrinks from each side, and therefore each compression surface 438 decreases. The compression surfaces 438 define a hypothetical cylinder 442, i.e. H. in a radial direction, a hypothetical circle with maximum diameter that can be described within the compression surfaces 438. In the example described in this paragraph, the circle is a circle of maximum diameter, which is described within the octagon defined by the compression surfaces 438. As a result, the claws 416 move inward, and the hypothetical cylinder 442 also shrinks in diameter. Activation of the drive mechanism and rotation of the link 428 causes the lever 412 to pivot about the pivot 420. The lever 412 pivots such that the radially inner end portion 434 of the lever arm 430 moves radially inward when the chain link 428 is in a clockwise direction is rotated in this example. Each compression surface 438 moves radially inward with the end portion 434 on which it
CH 711 918 B1 is attached. Therefore, the pressing unit 410 closes when the chain link 428 is rotated in a clockwise direction in this example, and the pressing unit 410 opens when the chain link 428 is rotated in a counterclockwise direction in this example. It can be seen that the claws 416, and in particular a point on a claw 416, can be configured to move in a non-linear manner or in a curved manner, depending on the arrangement of levers, pins, fixed rings and chain links. The press unit 410 can theoretically move inward until the claw edge 440 of each claw 416 meets the others on the central longitudinal axis 414 of the press unit 410. In other words, the claws 416 can move inward until the hypothetical cylinder 442 defined by the compression surfaces 438 reaches zero diameter.
19 illustrates that the claw edges 440 of the claws 416 are not oriented in the direction of the central longitudinal axis 414 of the pressing unit 410, but tangentially in the direction of the hypothetical cylinder 442, which surrounds the central longitudinal axis 414 at a selected distance. It is therefore achieved that the compression forces are not aligned by the claws 416, but rather tangentially in the direction of a circle which surrounds the material to be produced at a selected distance.
In the open starting position of the pressing unit 410 according to FIG. 19, a pledget 22 is inserted into the opening between the compression surfaces 438. By rotating the chain links 428 clockwise in relation to the fixed ring 418, the compression surfaces 438 are first brought into an intermediate position and finally into the end position, which is illustrated in FIG. 20. With this pivoting movement, the levers 412 are pivoted about the pivot 420. A comparison of FIG. 20 with FIG. 19 shows that during this movement the deformation forces which are applied by the compression surfaces 438 lead to a volume reduction of the pledget 22, which is uniform around the circumference, and the pledget 22 into a tampon 24 convert. After the claws have been opened slightly, the tampon 24 is removed from the pressing unit 410.
The press unit 410 includes a plurality of compression claws 416 that cooperate with each other so that the play between adjacent claws 416 defines a gap 444 at some points in the compression cycle. The gap 444 defines a gap center line that connects the row of center points of the gap between adjacent claws 416. A line that includes the gap centerline of gap 444 between a first claw 416 and an adjacent second claw 416 is sometimes parallel to the compaction surface 438 of the adjacent second claw 416. As a result, a line that includes the gap centerline becomes generally parallel to tangent to the hypothetical cylinder 442, and will not intersect the central longitudinal axis 414. In press unit 410, the orientation of gaps 444 helps prevent material from entering gap 444. In other words, the gap 444 between adjacent claws 416 provides a substantially reduced clearance profile in the direction of compression between adjacent claws 416 throughout the compression cycle, thereby substantially reducing the gaps 444 where material can be received. In addition, the geometric analysis of the structure of the press unit 410 shows that the gap 444 changes over the compression cycle and is minimized at the minimum and maximum compression diameter. In one aspect, the substantially reduced clearance between adjacent claws 416 approaches zero, so there is virtually no gap 444 that is present with minimal compression, so that the migration of material around the contact areas is essentially limited.
Attachment of claw 416 to tool carrier 436 may include a biasing mechanism 446 configured to urge claw 416 in a direction away from pivot 420 and toward a clockwise adjacent claw 416. In other words, the biasing mechanism 446 pushes the claw 416 toward a clockwise adjacent claw 416 while the clockwise adjacent claw 416 resists thrust. In this way, any gap that might otherwise exist between adjacent claws 416 is closed by the contact between adjacent claws 416.
The biasing mechanism 446 may be any suitable mechanism, component, force, or combination thereof that is capable of biasing a claw 416 toward an adjacent claw 416. The biasing mechanism 446 may be disposed on one or more of a lever 412, a claw 416, and any other element of the press unit 410. The biasing mechanism 446 can be arranged between a lever 412 and a claw 416, in particular on, in or in the vicinity of a tool carrier 436. Suitable biasing mechanisms 446 include, but are not limited to, beveled, tension, and compression springs; pneumatic and / or hydraulic components including cylinders or bellows; Elastomer components such as an elastomeric block or tape; a mechanical gear such as a rack and pinion or non-circular gear; a cam mechanism including tappet or a contoured wedge mechanism; electrical components including a solenoid; magnetic forces; Vacuum; mechanical fasteners such as a t-slot pin type mechanism; an additional linkage connected between two or more claws 416 and any combination thereof. The biasing mechanism 446 can be located directly on or near the claws 416, or can be external components that directly affect the claws 416. The press unit 410 can be used to manufacture a tampon 24 that has increased layer or structure integration. The addition of one or more shaping elements 448 to the pressing unit 410 can be used to create notches, grooves, bulges and any other suitable topographic elements in the material. 21 illustrates a perspective view of a claw 416 having a shaping member 448. As illustrated above, grooves, ribs, indentations and raised rings can be placed on a tampon 24
CH 711 918 B1 may be provided using a press unit 410 having a decreasing compaction surface in a manner similar to that used to integrate grooves, ribs, notches and raised rings into a tampon 24 using a non-tampon 24 Linear direction press unit is described. The shaping element 448 can be modified in a manner similar to the notch press claw 372 described above.
As described herein, a press unit may provide compression in the axial direction, non-linear direction, or may have a compression surface that decreases during the compression movement. In addition, as described herein, the material can be compressed into a tampon or pessary and can be provided with various grooves, ribs, notches, raised rings, etc. The grooves, ribs, notches, raised rings, etc. can be provided in any pattern that is considered suitable. In different embodiments, each of the press units carried by a device can produce several identical tampons or pessaries. In different embodiments, a device can carry at least two press units that can produce at least two tampons or pessaries that are not identical.
Compression method:
[0104] The device disclosed herein can be used in the manufacturing process of a tampon or pessary. The device can be used to compress the pledget or uncompressed pessary into a tampon or compacted pessary that is of a size and dimension that is more suitable for insertion into the vaginal cavity, either digitally or through the use of an application.
In different embodiments of a compression method not claimed here, the process of using a device as described herein may include providing the device. The device includes a plurality of press unit support structures that are rotatable about an axis and at least one press unit that is connected to each press unit support structure. The pressing units can be any of those described herein, e.g. an axial pressing unit, a non-linear direction pressing unit, a pressing unit that has a compression surface that can be removed, or a combination of the described pressing units. During one revolution of each press unit support structure about an axis, a material loaded into one of the press units can go through a complete compression cycle of a press unit. During the compression cycle, the press unit can transition from the fully open configuration to a partially closed configuration to a fully closed configuration, and from the fully closed configuration to a fully open configuration. The press unit can begin to compact the material in the partially closed configuration and the compacted material can remain in the fully closed configuration for the desired length of time during the rotation of the press unit about the axis. After the desired dwell time, the press unit can change to the fully open configuration via the partially open configuration.
A material such as e.g. a pledget or an undensified pessary can be loaded into one of the press units carried by one of the press unit support structures. The initial positioning of the material within the press unit can be referred to as the zero degree position of the press unit support structure. During the loading of the material into the press unit, the press unit can be in a fully open configuration and the material to be compacted can be loaded into the open press unit. Once the material to be compacted is loaded into the open press unit, the press unit can begin to transition from the fully open configuration to a partially closed configuration to a fully closed configuration. It is understood that when the press unit changes from a fully open to a fully closed configuration, the press unit changes to a partially closed configuration during which time the volume of the chamber containing the material to be compressed will decrease in volume until the press unit reaches the fully closed configuration. In other words, one can begin to compact the material positioned within the press unit when the press unit is in a partially closed configuration. As the press unit continues to go through the compression cycle, the press unit support structure that supports the press unit can rotate about the axis. When the press unit is in a fully closed configuration, the material within the press unit can be at the desired level of compression under full compression. The compression of the material positioned in a press unit can, during the rotation of its respective press unit carrier structure, from the zero-degree position to at least approximately the 90-, 120-, 150-, 180-, 210-, 240-, 270-, 300 or 330 degree position ± 10 °. When the material in the chamber has been compacted to the desired level of compaction, the press unit can begin to transition from a fully closed configuration to a partially open configuration and back to a fully open configuration to allow the material to be unloaded. When the press unit passes through the partially open configuration, the chamber into which the material is loaded can begin increasing the volume. As described above, in some embodiments, it may be desirable to unload the material while the press unit is in a partially open configuration. Furthermore, as described above, in some embodiments, it may be desirable to unload the material when the press unit has reached the fully open configuration. After the material is unloaded, whether during the partially open configuration or the fully open configuration of the press unit, the press unit can return to a fully open configuration for loading another material to begin the compression cycle.
CH 711 918 B1 As noted above, a device supports a plurality of individual press units on multiple press unit support structures. In one embodiment, during one revolution of each press unit support structure about an axis, each press unit can be operated and actuated in synchronism with any other press unit carried by the other press unit support structures as the press unit support structures rotate about an axis , In other words, each press unit can be in phase with any other press unit. When the press units are in phase with each other, they can go through the configurations of the compression cycle in synchronism with any other press unit. In one embodiment, during a rotation of the press unit support structures around a fixed axis, each press unit can be operated and actuated independently of any other press unit that is supported by the other press unit support structures when the press unit support structures rotate about an axis. In other words, each press unit can be out of phase with any other press unit. When the pressing units are out of phase with each other, they can go through different configurations of the compression cycle at any time.
[0108] In different embodiments, each press unit supported by one press unit support structure may be in phase with any other press unit supported by the other press unit support structures. In such embodiments, each press unit can go through any configuration of the compression cycle in substantially the same time. For example, with one rotation of the press unit support structure about an axis, a material can be loaded into each press unit in substantially the same time during the compression cycle. Each press unit support structure can continue to rotate about an axis and each press unit can transition from the fully open configuration to the fully closed configuration at substantially the same time. The press unit support structures can continue to rotate about the axis and after compacting the material in each press unit, the press unit can transition from the fully closed configuration to the fully open configuration. As described above, the compacted material can move from the press units during the transition from the fully closed configuration to the fully open configuration, i.e. in the partially open configuration, or when the press units have reached the fully open configuration. In different embodiments, at least two press units can be in a fully open configuration at a time during the rotation of the press unit support structures about an axis. In different embodiments, at least two press units can be in a partially closed configuration at a time during the rotation of the press unit support structures about an axis. In different embodiments, at least two press units can be in a completely closed configuration at a time during the rotation of the press unit support structures about an axis. In different embodiments, at least two press units can be in a partially open configuration at a time during the rotation of the press unit support structures about an axis.
[0109] In different embodiments, each press unit carried by one press unit support structure may be out of phase with any other press unit supported by the other press unit support structures. In such embodiments, each press unit may undergo a different configuration of the compression cycle at any time during the rotation of the press unit support structures about an axis. For example, with one revolution of each of the press unit support structures around an axis, a material can be loaded into a first press unit at an initial point in time. The press unit support structures can continue to rotate about the axis and the first press unit can transition from the fully open configuration to the fully closed configuration to compress the material loaded into the first press unit. While the first press unit is transitioning from the fully open configuration to the fully closed configuration, a second material can be loaded into a second press unit for compaction. It is understood that the second material can be loaded into the second press unit, while the first press unit can be in any of the configurations of a partially closed configuration, a fully closed configuration, a partially open configuration or a fully open configuration. Since the press units can be out of phase, in different embodiments it is possible to load a material for compaction into a press unit in essentially the same time as that in which a compacted material is unloaded from another press unit. In different embodiments, at least two press units can be in a fully open configuration at a time during the rotation of the press unit support structures about an axis. In different embodiments, at least two press units can be in a partially closed configuration at a time during the rotation of the press unit support structures about an axis. In different embodiments, at least two press units can be in a completely closed configuration at a time during the rotation of the press unit support structures about an axis. In different embodiments, at least one press unit support structure may be at least two press units in a fully open configuration, a partially closed configuration, a fully closed configuration, or a partially open configuration at a time during the rotation of the press unit support structures, and at least one press unit may be in a fully open configuration, a partially closed configuration, a fully closed configuration, or a partially open configuration. In these embodiments, the two press units may either be in the same configuration, or may be in a different configuration, respectively.
CH 711 918 B1 In the interest of brevity and conciseness, all ranges of values described in this disclosure contemplate all values in the range and are to be construed as support for claims citing any sub-range with endpoints that represent the integer values in question Area are. As a hypothetical example, consider a disclosure of a range from 1 to 5 to support claims for any of the following ranges: 1 to 5; 1 to 4; 1 to 3; 1 to 2; 2 to 5; 2 to 4; 2 to 3; 3 to 5; 3 to 4 and 4 to 5.

权利要求:
Claims (18)
[1]
claims
1. Device (240) for compacting a plurality of pledgets (22) or pessaries, characterized in that it comprises the following:
a. a first press unit support structure (242) and a second press unit support structure (242), each of the first press unit support structure (242) and the second press unit support structure (242) being rotatable about a common axis (248);
b. an axial direction press unit (254, 300, 320) for compacting a first pledget or pessary in an axial direction along a longitudinal direction and / or lateral direction of the pledget or pessary, which is carried on and formed on the first press unit support structure (242) to undergo a complete compression cycle during a single revolution of the first press unit support structure (242) about the common axis (248); and
c. a second press unit (254) for compressing a second pledget or pessary, which is carried on the second press unit carrier structure (242) and is designed to rotate around the common axis (248) during a single rotation of the second press unit carrier structure (242) to go through a complete compression cycle, the second pressing unit (254) being one of an axial direction pressing unit (254, 300, 320) for compressing in an axial direction along a longitudinal direction and / or lateral direction of the pledget or pessary, a non-linear direction pressing unit (254,330,370) for compression in a non-linear direction or a pressing unit (254, 410) which has a compression surface which decreases with a compression movement.
[2]
2. The device (240) according to claim 1, wherein the device is designed such that, at a specific point in time during one revolution of each of the first and the second press unit support structure (242) about the common axis (248), the axial direction Press unit (254, 300, 320) is in a configuration that is one of a fully open configuration for loading the first pledget or pessary into the press unit, a fully closed configuration for compressing the first pledget or pessary to a desired compression level, or a partially closed one Configuration is in the transition from the fully open configuration to the fully closed configuration or a partially open configuration in the transition from the fully closed configuration to the fully open configuration, and the second press unit (254) is in a configuration that is one of a complete open Configuration for loading the second pledget or pessary into the press unit, a fully closed configuration for compacting the second pledget or pessary to a desired compression level, a partially closed configuration in the transition from the fully open configuration to the fully closed configuration or a partially open configuration in the Transition from the fully closed configuration to the fully open configuration.
[3]
The apparatus (240) of claim 2, wherein the configuration of the axial direction press unit (254, 300, 320) at the particular time is the same as the configuration of the second press unit (254).
[4]
4. The apparatus (240) according to claim 2, wherein the configuration of the axial direction pressing unit (254, 300, 320) at the specified time differs from the configuration of the second pressing unit (254).
[5]
5. Device (240) according to one of the preceding claims, wherein the first press unit support structure (242) and the second press unit support structure (242) are rotatable independently of one another about the common axis (248), so that the spatial relationship between the axial direction Press unit (254, 300, 320), which is connected to the first press unit support structure (242), and the second press unit (254), which is connected to the second press unit support structure (242), is variable.
[6]
6. Device (240) according to one of the preceding claims, wherein the device is designed such that the compression of a pledget or pessary takes place within one of the axial direction pressing unit (254, 300, 320) or second pressing unit (254) while the axial pressing unit (254, 300, 320) or second pressing unit (254) rotates with respect to the common axis (248) from a zero degree position to at least a 90 degree position.
[7]
7. Device (240) for compacting a plurality of pledgets (22) or pessaries, characterized in that it comprises:
a. a first press unit support structure (242) and a second press unit support structure (242), each of the first press unit support structure (242) and the second press unit support structure (242) being rotatable about a common axis;
b. a non-linear direction press unit (254, 330, 370) for compressing a first pledget or pessary in a non-linear direction carried on and formed on the first press unit support structure (242)
CH 711 918 B1 is to go through a complete compression cycle during a single revolution of the first press unit carrier structure (242) about the common axis; and
c. a second press unit (254) for compacting a second pledget or pessary carried on the second press unit support structure (242) and configured to complete a complete compression cycle during a single rotation of the second press unit support structure about (242) the common axis The second press unit (254) is a non-linear direction press unit (254, 330, 370) for compacting in a non-linear direction or a press unit (254, 410) that has a compacting surface that decreases with a compacting movement ,
[8]
8. The device (240) according to claim 7, wherein the device is configured such that, at a certain point in time during a revolution of each of the first and second of the press unit support structures (242) about the common axis (248) -Linear direction press unit is in a configuration that is one of a fully open configuration for loading the first pledget or pessary into the press unit, a fully closed configuration for compressing the first pledget or pessary to a desired compression level, a partially closed configuration in the transition from the fully open configuration to the fully closed configuration or a partially open configuration in transition from the fully closed configuration to the fully open configuration, and the second press unit (254) is in a configuration that is one of a fully open configuration configuration for loading the second pledget or pessary into the press unit, a completely closed configuration for compacting the second pledget or pessary to a desired compression level, a partially closed configuration in the transition from the fully open configuration to the fully closed configuration or a partially open configuration in the Transition from the fully closed configuration to the fully open configuration.
[9]
The apparatus (240) of claim 8, wherein the configuration of the non-linear direction press unit (254, 330, 370) at the particular time is the same as the configuration of the second press unit (254).
[10]
10. The apparatus (240) of claim 8, wherein the configuration of the non-linear direction press unit (254, 330, 370) at the particular time differs from the configuration of the second press unit (254).
[11]
11. The device (240) according to one of claims 7 to 10, wherein the first press unit support structure (242) and the second press unit support structure (242) are rotatable independently of one another about the common axis (248), so that the spatial relationship between the Non-linear direction press unit (254, 330, 370) connected to the first press unit support structure (242) and the second press unit (254) connected to the second press unit support structure (242) is variable.
[12]
12. The device (240) according to one of claims 7 to 11, wherein the device is designed such that the compression of a pledget or pessary within one of the non-linear direction pressing unit (254, 330, 370) or the second pressing unit (254 ) takes place while the non-linear direction pressing unit (254, 330, 370) or the second pressing unit (254) rotates with respect to the common axis (248) from a zero degree position to at least a 90 degree position.
[13]
13. Device (240) for compacting a plurality of pledgets (22) or pessaries, characterized in that it comprises:
a. a first press unit support structure (242) and a second press unit support structure (242), each of the first press unit support structure (242) and the second press unit support structure (242) being rotatable about a common axis (248);
b. a first press unit (254, 410) for compacting a first pledget or pessary, having a compacting surface that decreases with a compacting movement carried on the first press unit support structure (242) and configured to be used during a single revolution of the first Press unit support structure (242) about a complete compression cycle about the common axis (248); and
c. a second press unit (254) for compressing a second pledget or pessary, which is carried on the second press unit carrier structure (242) and is designed to rotate around the common axis (248) during a single rotation of the second press unit carrier structure (242) to go through a complete compression cycle, the second pressing unit (254) being a pressing unit (254, 410) which has a compression surface which decreases with a compression movement.
[14]
14. The device (240) according to claim 13, wherein the device is configured such that, at a specific point in time during one revolution of each of the first and the second press unit support structure (242) about the common axis (248), the first press unit (254, 410) is in a configuration that is one of a fully open configuration for loading the first pledget or pessary into the crimping unit, a fully closed configuration for compacting the first pledget or pessary to a desired compression level, a partially closed configuration in transition is from the fully open configuration to the fully closed configuration or a partially open configuration in transition from the fully closed configuration to the fully open configuration, and the second press unit (254) is in a configuration that is one of a fully open configuration on for loading the second pledget or pessary into the press unit, a completely closed configuration for compacting the second pledget or
CH 711 918 B1
Pessaries to a desired level of compaction, a partially closed configuration in transition from the fully open configuration to the fully closed configuration, or a partially open configuration in the transition from the fully closed configuration to the fully open configuration.
[15]
15. The apparatus (240) of claim 14, wherein the configuration of the first press unit (254, 410) at the particular time is the same as the configuration of the second press unit (254).
[16]
16. The apparatus (240) according to claim 14, wherein the configuration of the first press unit (254, 410) at the determined time differs from the configuration of the second press unit (254).
[17]
17. The device (240) according to any one of claims 13 to 16, wherein the first press unit support structure (242) and the second press unit support structure (242) are rotatable independently of one another about the common axis (248), so that the spatial relationship between the first press unit (254, 410), which is connected to the first press unit support structure (242), and that of the second press unit (254), which is connected to the second press unit support structure (242), is variable.
[18]
18. The device (240) according to one of claims 13 to 16, wherein the device is designed such that the compression of a pledget or pessary takes place within one of the first or the second pressing unit (254, 410) while the first or second Press unit (254, 410) rotates with respect to the common axis (248) from a zero degree position to at least a 90 degree position.
CH 711 918 B1

CH 711 918 B1

CH 711 918 B1

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KR20170047401A|2017-05-04|

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KR101797542B1|2017-11-15|

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WO2016053274A1|2016-04-07|

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US20170231832A1|2017-08-17|

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法律状态:
2021-04-30| PL| Patent ceased|

优先权:

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申请号 | 申请日 | 专利标题

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PCT/US2014/058207|WO2016053274A1|2014-09-30|2014-09-30|Apparatus and method of compression|

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