• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention provides anti-rotation elements 28 disposed near the base of one or both parts to fill selected portions of the space between the post and the socket, to suppress or exclude the relative rotation of the two said portions about a common axis. Post and socket connectors 10, 12, 20, 22, and 40 with .44,58,68.
    公开号:KR19990014953A
    申请号:KR1019970708299
    申请日:1996-05-22
    公开日:1999-02-25
    发明作者:댄폴로저스
    申请人:키어스 디 비티；임플랜트이노베이션즈,인코오포레이티드；
    IPC主号:
    专利说明:

    Anti-rotation coupling mechanism
    In current dental implants, it is common to use anti-rotation coupling mechanisms consisting of, for example, hexagonal posts or sockets of the implant and mating sockets or posts of the dummy to be attached to the implant. The types of imitations (posts, copings, dentures, etc.) vary and all of these imitations are manufactured in standard sizes by the manufacturer to make the posts and sockets interchangeable to fit all available implants. Doing. The dimensions used are small. In part due to manufacturing tolerances, the width of the socket is slightly larger than the posts so that dentists can always tuck both sides of the two parts together and there is no difficulty when they need to be separated. Typically, the distance between opposing planes of the hexagonal post may be about 0.005 in. Less than the distance between opposing planes of the mating hexagonal sockets. Although this configuration provides a basic anti-rotation connection, it leaves some undesirable rotational looseness that destabilizes natural teeth. In particular, the rotational wave between the parts may loosen the screw itself, which is tightening the imitation fixed to the implant. For successful dental repair on the implant, it is very important that the restoration is not loose on the implant.
    The present invention is embodied, for example, in dental implants and abutments, and in dentures or other articles formed to be releasably connected in a non-rotatable manner to the implant. It relates to a type of anti-rotation connection mechanism using a non-circular post that engages a non-circular socket in which the two parts are end-to-end connected in a manner that prevents relative rotation about their common longitudinal axis.
    1 is a perspective view of a post of a typical prior art anti-rotation hex outer surface commonly used in cylindrical dental implants with threaded inner bores penetrating the hexagon;
    Figure 2a schematically shows the engagement state of the hexagonal post and the socket of the prior art,
    Figure 2b schematically shows a state of rotation looseness of the prior art,
    3 is a perspective view of a component with a socket having a hexagonal inner surface according to an embodiment of the present invention configured to mate with a prior art post of FIG.
    4 is a perspective view of a novel brooch according to the invention for use in the manufacture of the socket shown in FIG.
    5 is a partially cutaway enlarged side view of the socket of FIG. 3 mated with the post of FIG. 1, FIG.
    6A-6F are partial perspective views of other embodiments of a socket according to the present invention,
    7A is a perspective view of a post of a second embodiment of the present invention,
    FIG. 7B shows a hexagonal post with different widths in cross sections, which may be used to make the post of FIG. 7A, FIG.
    7c shows a hexagonal post made according to a third embodiment of the invention,
    8 is a vertical sectional view of the post and the socket according to the second embodiment of the present invention.
    According to the invention, the non-circular post is detachably connected to the non-circular socket in a manner that prevents relative rotation between it and the socket. According to the prior art, the opposing planes of the ends of the post and the socket are slightly spaced apart to facilitate the initial insertion of the post into the socket. However, the further insertion of the post into the socket provides a means to reduce the relative rotation between the socket and the post and to engage it more tightly in the post, in the socket, or both. In a first embodiment of the present invention, the socket has internal means at a position adjacent the bottom of the socket so as to more marginally engage the free end of the prior art post. In a second embodiment of the invention, the post is provided with external means near the base of the post so as to more relaxedly engage the socket of the prior art and its opening. In a third embodiment of the invention, both internal and external means are provided which engage each other in a manner which significantly reduces the relative rotation between them on both the socket and the post. In either embodiment, when the two parts supporting the post and the socket are tightened together, it can be seen that their relative rotation about their common axis is significantly excluded, thus forming an accurate anti-rotation connection.
    According to the conventional hexagonal post and socket fittings used for dental implants, in the first and third embodiments, the socket is mounted at each corner between the neighboring flat walls in contact with the post and its corresponding corners. It may be hexagonal in shape with six separate contact members arranged, and in the second and third embodiments may be provided adjacent the base of the post with contact means for the post to contact the socket and its edges. For example, when the splice fitted with the improved socket according to the first embodiment is tightened to a hexagonal post on the graft by a normal splicing screw, the splice and the graft do not rotate relative around a common axis. When the improved post according to the second embodiment is fitted into the hexagonal socket of the implant, for example when tightened to the implant using a suitable screw, or the improved post and the improved socket according to the third embodiment are fitted together and joined together Even when tightened by a screw, the same result can be obtained.
    1 shows a cylindrical dental implant 10 of the prior art with a hexagonal post 12 extending upward from the gum surface 14. The structure is well known and widely used in the dental implantation of each tooth restoration, where the most important is that the restored teeth do not pivot around the common longitudinal axis of the implant and restoration. Hexagonal posts 12 as currently in use have three pairs of opposing, parallel planes 12a, 12b, 12c. This parallel plane may be formed by straddling-milling the initial cylindrical post 12, leaving a thin circular base 16 of the initial cylindrical post between the hexagonal post and the gum surface 14. do. The shape of the initial cylinder remains at all edges 16a-16f between adjacent ends of the plane. In the implant, threaded bores 18 are drilled through the hexagonal posts.
    2a schematically illustrates a state in which the hexagonal post of FIG. 1 is disposed inside the hexagonal socket. The socket has three pairs of opposing parallel walls 22a, 22b and 22c, with each adjacent wall meeting at a sharp edge 24. Each of these edges faces each of the curved edges 16a-16f of the post 12. As shown in the figure showing the rotational looseness of the hexagonal post and socket connectors of the prior art, the distance of each corner gap is greater than the distance d between the opposing parallel walls. The result of this loose state is shown in FIG. 2B, where the angle α represents the extent to which the post can rotate in one direction or the other in the socket. In addition, the degree of loosening is twice the angle α. The magnitude of the angle α depends on the distance d. Indeed, in the case of prior art connectors, loosening in the range of about 0.75 to 2 ° or more in each direction has been permitted. This loosening condition loosens the screw used to tighten the recovery to the dental implant over time.
    In FIG. 3, the generally tubular component 20 has a hexagon socket 22 of a size mating with the hexagon post 12. Thus, the socket also has three pairs of opposing parallel planes 22a, 22b, 22c, as shown in Fig. 2a. Since it is customary to manufacture hexagonal sockets by a broach with sharp edges, the sharp edges 24 where the adjacent flat walls 22a, 22b or 22b, 22c meet are left. In the embodiment of the present invention shown in FIG. 3, the corner space of the socket 22 is partially filled with corner blocks 28 to be disposed at each corner inward near the bottom 30 of the socket. The socket 22 may be formed by the brooch 40 shown in FIG. 4. The broach has a tool partial end 48 extending rearward from its three pairs of parallel planes 42a, 42b, 42c, each adjacent wall being formed at the edge of the socket 22 Meet at the sharp edge 46 corresponding to 24). The tool portion used to form the socket is indicated by dashed line 50. The sharp edges 46 of the tool portion extend from line 48 to the end 50 by a longitudinally oriented plane 44 that extends below the generally triangular slope 44a where the vertices meet the sharp edges 46. To be removed. In such a broach that may be used to form a socket 22 having an edge block 28, the inclined triangular surface 28a corresponds to the inclined surface 44a of the brooch. When the component 20 is connected to the implant 10, the edge block 28 fills the gap 26 (see FIG. 2A) and engages with the curved edges 16a-16f of the hexagonal post 12, thereby rotating. Looseness is significantly excluded. The inclined surface 28a smoothly enters the hexagonal post into the limited area of the socket occupied by the block 28.
    5 shows how the component 20 and the implant 10 are connected using a hexagonal post 12 and a hexagonal socket 22. Referring to the block 28 of the component 20 on both sides of the post 12, shown in cross section, the inclined surface 28a and the corner 24 and the ring 21, the ring 21 (also in FIG. 3). Shown) is formed in the shape according to the prior art to form a room for the circular base 16 of the hexagonal post 12 when the component is seated on the implant surface 14. The ring is disposed below the sharp edge 24 of the socket spaced from the hexagonal post 12 as shown. The sharp edges are arranged below the inclined surface 28a of the edge block 28, which forms a progressive transition from the sharp spaced edges to the contact between the hexagonal post and the socket. As a result, the block 28 makes tight contact with the curved edges 16a-16f of the hexagonal posts. The corner block is formed to a size such that all the edges 16a to 16f of the hexagonal posts are compressed between the pair of opposite blocks 28. The component can be tightened to the implant by, for example, a common bond screw 70.
    6A shows a variant of the component 20 in which the corner block 28 shown in FIG. 3 is replaced with a corner shim 68 enlarged in a circle 20a shown in dashed lines. To prevent the posts from rotating in the socket, the shim 68 comes into contact with the sidewalls of the posts near the edges, which is less reliable than compressing the posts between the opposing blocks. These shims may be removed from the corner 24 portion, as shown in circle 20b shown in dashed line in FIG. 6B. Edge blocks 28 are shown in circle 20c (see FIG. 6C) shown in dashed lines for comparison. Circle 20d, shown in dashed line in FIG. 6D, shows a modified edge block 58 that slightly combines the lateral contact effect of shim 68 with the compaction effect of block 28. Circle 20e, shown in dashed line in FIG. 6E, shows edge block 28 with shim 68 flanked. 6a to 6e illustrate other embodiments of the anti-rotation socket of the present invention.
    6F shows a preferred embodiment of the present invention that includes a modified edge shim that provides anti-rotation effect while facilitating smooth entry of the hexagonal post into the socket. Improvements will be observed when comparing the shims shown in FIG. 6F with the shims shown in FIG. 6A. Referring to FIG. 6A, it can be seen that the upper edge of the corner shim 68 is spaced approximately parallel below the upper edge of the socket. Hexagonal posts fit into the socket in the same rotational looseness as they would hit in the prior art, until the first insertion and then hit the upper edge of the edge shim 68. As the post is inserted further into the socket, the fit along the upper edge of the edge shim 68 is subject to sudden tightening. In the embodiment shown in FIG. 6F, the top edge of each pair of edge shims is inclined with respect to the top edge of the socket to facilitate entry of the post into the socket. In particular, the upper edges of each pair of shims are inclined toward and toward each other so as to meet each other at apex near the upper end of the edge of the socket. As the post is inserted into the socket, the post is initially in the same degree of rotational looseness as in the prior art, but soon reaches the peak of a pair of inclined shims. As the post penetrates further into the socket, the side wall of the post contacts the end of the inclined top edge of the shim closest to the edge of the socket. Thereafter, as the post is inserted further into the socket, the sidewalls of the post gradually come into contact with the progressively increasing surface area of the shim until the shim is in full contact with the post to achieve a complete anti-rotation effect. Although the improvements of FIG. 6F have been described with respect to FIG. 6A, the same type of improvements may be obtained by tilting the upper edges of the shims of other embodiments as shown in FIGS. 6B, 6D and 6E. It can be seen.
    Embodiments of the invention shown and described thus far may be used with conventional hexagonal joining posts known in the art. In other embodiments of the present invention, the joining post is modified for use with conventional hexagonal sockets known in the art. In FIG. 7A an implant 10a with a hexagonal post 60, for example, modified in accordance with one embodiment of the present invention is shown. The base 62 of the post is formed large enough to fit snugly into a conventional hexagonal socket as seen in the joints and other components formed for attachment to the dental implant and dental firm. The base 62 extends shortly from the base of the post 60 toward the free end. The edge material of the end 64 is removed in a hexagon. The intermediate portion 66 is inclined from the base 62 to the end 64. The end 64 is loosely fitted in the available hexagonal sockets. Thus, pushing the post of the present invention into the hexagonal socket allows the post to easily enter until the intermediate portion 66 touches the socket, and the base 62 engages the walls of the socket slightly to allow the post to settle into the socket. Additional power is required. The additional force is applied by screws which are commonly used to attach the couplings to one another. The screw may be, for example, a screw or bolt used to mount a transfer coping to the implant or its analog, or a joining screw. The components are well known and will not be described in detail.
    The post 60 of the embodiment shown in FIG. 7A may be derived from the post 16 of FIG. 7B, wherein the post is remote from the gum surface 14 while the distance between the planes is as used in the prior art. The first section 22, usually of length, and the second section 24, which is close to the surface of the gums and is selected as large or close to the distance between the inner planes of the socket into which the post will fit, are selected. The post as shown in FIG. 7B can be manufactured by the well known straddle milling process, but of the two paths, the first path has a second section 24 having a greater distance between the planes. It produces a post, and in the second path produces a first section 22 with a smaller distance between the planes. The posts can be easily guided to the mating sockets as in the prior art posts, but they fit snugly when the second section 24 enters the sockets, minimizing the relative rotation between the parts.
    In FIG. 7C, the straddle mill is moved axially toward the gum surface 14, cutting the sidewalls of the initial post shown in FIG. 7A into the arcuate portion 64 ′, with the corners substantially the same as shown in FIG. 7A. Another embodiment of the invention is shown which may be derived from the post shown in FIG. 7A by performing another milling process, leaving pieces 62 '. The arc portion is deeply cut, as shown in FIG. 7C, to remove material from both sections 62, 64 of the post. In a variant, the arcuate portions can be cut shallow so that only the material of the wider section 64 is removed. In all cases, the embodiment shown in FIG. 7C reduces the friction between the engaging portions without compromising the anti-rotation shape of the present invention.
    8 shows how the post 62 of the present invention is connected to the socket 22 of the present invention to provide a connection mechanism, each of which two parts embodying improvements of the present invention. will be. According to other embodiments shown herein, the post first freely enters the socket and then engages more tightly when the post is fully seated in the socket.
    Although the present invention is illustrated for the connection of posts and sockets currently used in dental implants, the above embodiments are for illustration only. It is intended that the scope of the invention be defined by the claims appended hereto.
    权利要求:
    Claims (39)
    [1" claim-type="Currently amended] An interlocking post and socket mechanism for connecting the first portion to the second portion, the post extending from a base of the first portion to a free end distant from the first portion and the socket extending from the wall of the second portion. In the interlocking mechanism of the wall of the second part extending from to a base inside the second part,
    At the beginning of insertion the post fits loosely in the socket, at least one of the post and the socket adjoining its base such that the free end of the post will penetrate further into the socket towards the base of the socket. And interlocking means for engaging the other one when engaged.
    [2" claim-type="Currently amended] 2. The post of claim 1, wherein the post has outer walls extending between its base and free ends, the recess having inner walls extending between its opening and the base, and the engagement means is coupled with the outer walls. An interlocking mechanism, characterized by filling a part of the space between the inner walls.
    [3" claim-type="Currently amended] 3. The interlocking mechanism of claim 2 wherein the post and the socket have the same cross-sectional shape.
    [4" claim-type="Currently amended] 4. The interlocking mechanism of claim 3 wherein the shape includes a number of planes.
    [5" claim-type="Currently amended] 4. The interlocking mechanism of claim 3 wherein the shape is a regular polygon.
    [6" claim-type="Currently amended] 6. The interlocking mechanism of claim 5 wherein the shape is hexagonal.
    [7" claim-type="Currently amended] 5. The interlocking mechanism of claim 4 wherein the base of the post is in a cylindrical shape.
    [8" claim-type="Currently amended] 8. The method of claim 7, wherein the adjacent pair of planes of the post meet arc-shaped portions of the post that extend within the cylindrical from the first portion toward the far end, and the adjacent pair of adjacent sockets of the socket. And said planes meet at sharp edges.
    [9" claim-type="Currently amended] 9. The interlocking mechanism of claim 8 wherein the engagement means inside the socket is disposed at the corners to contact the arced portions.
    [10" claim-type="Currently amended] 9. The interlocking device as claimed in claim 8 wherein said engagement means inside said socket are detachable members arranged in an area comprising said corners around said base of said socket to contact an area of said post comprising said arcuate portions. Fasteners.
    [11" claim-type="Currently amended] 11. The interlocking mechanism of claim 10 wherein the shape is hexagonal, the post has six arcuate portions, and the engagement members are arranged in a hexagonal shape.
    [12" claim-type="Currently amended] 3. The interlocking mechanism of claim 2 wherein the socket has inner walls that meet at the corners, and the post has engaging means near a base that contacts the inner walls of regions including the corners.
    [13" claim-type="Currently amended] 2. The device of claim 1, comprising a first bore of said first portion extending through said post and a second bore of an opening of said second portion in said socket, said bores adapted for said post to fit into said socket. Interfacing to the end when aligned, the means for pulling the parts together through the bore.
    [14" claim-type="Currently amended] 3. The socket according to claim 2, wherein the socket has inner walls that meet at the corners, and engagement means on the sidewalls near its base in areas including the corners to contact the outer walls of the post. Interlocking mechanism, characterized in that.
    [15" claim-type="Currently amended] 2. The interlocking mechanism of claim 1 wherein the engagement means comprises a plurality of separate engagement elements arranged around the circumference of the base of the socket with the one or more of the post.
    [16" claim-type="Currently amended] 16. The post of claim 15, wherein the post has sidewalls parallel between its base and the free end, and the recess has sidewalls parallel between the wall and its base, the transverse dimension of the recess being: And greater than a transverse dimension of the post, wherein the engagement means of the post and one of the sockets extend from the post and the socket to contact the socket and the sidewalls of the post.
    [17" claim-type="Currently amended] 17. The method of claim 16 wherein the engagement means comprises a plurality of separate engagement elements arranged around the post and one of the sockets adjacent to the base and extending from the base to the respective free end or wall by the distance. Interlocking mechanism, characterized in that.
    [18" claim-type="Currently amended] 16. The interlocking mechanism of claim 15 wherein the post and the socket have the same cross-sectional shape.
    [19" claim-type="Currently amended] 19. The interlocking mechanism of claim 18 wherein the shape is polygonal.
    [20" claim-type="Currently amended] 20. The interlocking mechanism of claim 19 wherein the shape is hexagonal.
    [21" claim-type="Currently amended] 21. The interlocking mechanism of claim 20 wherein at least one of said engaging means of said post and said socket comprises a separate engaging element disposed in each region comprising said hexagonal edges.
    [22" claim-type="Currently amended] The interlocking mechanism of claim 1 wherein one of the portions is a dental implant supporting one of the posts and the socket and the other is a dental component supporting one of the posts and the socket.
    [23" claim-type="Currently amended] 23. The apparatus of claim 22, wherein the implant and the component are configured to connect end to end with one end wall facing the end wall of the other part, wherein one of the post and the socket is the end walls. And one of said post and said socket is in the other of said end walls.
    [24" claim-type="Currently amended] 24. The interlock mechanism of claim 23 wherein the implant includes a body portion formed in a cylindrical shape, wherein the post and the socket prevent rotation of the component about an axis of the portion.
    [25" claim-type="Currently amended] 22. The interlocking of claim 21 wherein one of the portions is a dental implant supporting one of the post and the socket and the other is a dental component supporting the other of the post and the socket. Instrument.
    [26" claim-type="Currently amended] 26. The apparatus of claim 25, wherein the implant and the component are configured to be end-to-end with one end wall facing the end wall of the other part, wherein one of the post and the socket is the end walls. And one of the post and the socket is on the other of the end walls.
    [27" claim-type="Currently amended] 27. The interlock mechanism of claim 26 wherein the implant includes a body portion formed in a cylindrical shape, wherein the posts and sockets prevent rotation of the component about an axis of the portion.
    [28" claim-type="Currently amended] The post of claim 1, wherein the first portion has a first bore penetrating the post, the second portion has a second bore bored in the socket, and the first and second bores are the post. Interfacing to the ends when is in the socket and engaging the bore to hold the post in the socket.
    [29" claim-type="Currently amended] A shaft for receiving at one end polygonally shaped cutting edges having sidewall surfaces extending along the shaft from the end to form a similar polygonal socket having inner walls and a predetermined depth in the main body; In a cutting tool,
    The end section of the tool includes the cutting edges and is limited to below the depth of the socket, one or more portions of the walls of the shaft of the end section to provide corresponding protrusions extending from the inner walls in the socket. Cutting tool, characterized in that formed for the concave surface.
    [30" claim-type="Currently amended] 30. The cutting tool of claim 29, wherein the cutting edges have a plurality of separate recesses arranged around the tool to form separate protrusions in the socket.
    [31" claim-type="Currently amended] 31. The cutting tool of claim 30, wherein the recesses are confined to the regions of the tool and adjacent sidewalls meet in the region.
    [32" claim-type="Currently amended] 31. The cutting tool of claim 30, wherein the recesses have an equal depth.
    [33" claim-type="Currently amended] 2. A combination of post and socket according to claim 1, wherein each part comprises said engagement means.
    [34" claim-type="Currently amended] An apparatus for providing an anti-rotation connection between first and second portions of a dental implant system,
    The first portion forms a socket having a base and an open end,
    A second portion free to be partially penetrated into the socket between the first portion and the second portion to form an initial connection that is loose enough to allow a small angle of relative rotation between the post and the socket; Forming a post with a stage and a base,
    One or more of the first portions to provide a final connection between the first and second portions when the post is fully inserted into the socket, which is taut than the initial connection and excludes relative rotation between the post and the socket And engagement means disposed in the second portion.
    [35" claim-type="Currently amended] 35. The apparatus of claim 34, wherein the post and the socket have a desired cross sectional shape.
    [36" claim-type="Currently amended] 35. The apparatus of claim 34, wherein the post and the socket have a polygonal cross-sectional shape.
    [37" claim-type="Currently amended] 35. The apparatus of claim 34, wherein the post and the socket have a hexagonal cross-sectional shape.
    [38" claim-type="Currently amended] 38. The apparatus of claim 37, wherein one of the first and second portions is a dental implant and the other of the first and second portions is a dental abutment.
    [39" claim-type="Currently amended] 39. The apparatus of claim 38, wherein the engagement means is disposed at corners of one or more of the post and the socket.
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    同族专利:
    公开号 | 公开日
    EP0837658A1|1998-04-29|
    JPH11505749A|1999-05-25|
    DE69637019T2|2007-08-16|
    JP3905556B2|2007-04-18|
    ES2284169T3|2007-11-01|
    AR003682A1|1998-09-09|
    BR9609291A|1999-05-11|
    EP0837658B1|2007-04-11|
    EP0837658A4|2003-03-12|
    WO1996037161A1|1996-11-28|
    DE69637019D1|2007-05-24|
    AU5801396A|1996-12-11|
    NO975401D0|1997-11-25|
    US5984680A|1999-11-16|
    NO975401L|1997-11-25|
    AT359037T|2007-05-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1995-05-25|Priority to US8/451,083
    1995-05-25|Priority to US08/451,083
    1995-08-24|Priority to US274195P
    1995-08-24|Priority to US60/002,741
    1996-05-22|Application filed by 키어스 디 비티, 임플랜트이노베이션즈,인코오포레이티드
    1999-02-25|Publication of KR19990014953A
    优先权:
    申请号 | 申请日 | 专利标题
    US8/451,083|1995-05-25|
    US08/451,083|US5725375A|1995-05-25|1995-05-25|Anti-rotational connecting mechanism|
    US274195P| true| 1995-08-24|1995-08-24|
    US60/002,741|1995-08-24|
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