LOCKING SET FOR LINEAR SURGICAL STAPLER

专利摘要:
the present invention relates to an apparatus (100) which includes a handle assembly, an end actuator (120), a firing assembly (200) and a locking assembly. the handle assembly includes a first (102) and a second (104) arm and a lock lever (180). the end actuator includes a first (122) and a second (130) claw and a staple cartridge (150). the firing assembly (200) is configured to act from a proximal pre-firing position towards a distal position to staple and cut the captured tissue between the first jaw and the second jaw. the locking set is configured to prevent distal translation of the trigger set in a locked configuration and to allow distal translation of the trigger set in an unlocked configuration. the locking lever (180) is configured to drive the locking assembly from the locked configuration to the unlocked configuration in response to the action of the locking lever pivoting the second claw from a partially closed configuration to a fully closed configuration while the firing assembly is in the pre-trigger proximal position.
公开号:BR112020015819A2
申请号:R112020015819-4
申请日:2019-01-16
公开日:2020-12-15
发明作者:Cameron D. McLain；Michael J. Stokes
申请人:Ethicon Llc；
IPC主号:

专利说明:

[001] [001] In some surgical operations, such as a gastrointestinal anastomosis, it may be desirable to fix one or more layers of tissue, cut through the attached tissue layers and insert staples into the tissue layers to substantially seal the cut tissue layers each other, close to their cut ends. One of the instruments that can be used in such operations is a linear cut stapler. A linear cut stapler generally includes a first claw, a second claw, a lever to secure the first claw in relation to the second claw, an anvil associated with the first claw or the second claw, a staple cartridge associated with the claw opposite the claw. anvil for staples and a mobile firing set in relation to the rest of the line-air cutting stapler. The first claw and the second claw can pivot in relation to each other to secure the fabric between the claws. The staples are arranged in the staple cartridge so that a portion of the firing assembly can act through the staple cartridge to trigger the staples out of the staple cartridge, through the fabric, and against the anvil at the same time which also cuts the tissue captured between the staple cartridge and the staple anvil.
[002] [002] Although several types of surgical stapling instruments and associated components have been produced and used, it is believed that no one before the inventor (or inventors) has produced or used the invention described in the attached claims. BRIEF DESCRIPTION OF THE DRAWINGS
[003] [003] Although the specification concludes with claims that specifically indicate and distinctly claim this technology, it is believed that this technology will be better understood from the following description of certain examples, taken in conjunction with the attached drawings, in which like reference numbers identify like elements, and in which:
[004] [004] Figure 1 shows a perspective view of an exemplary surgical stapling instrument;
[005] [005] Figure 2 shows an exploded perspective view of the surgical stapling instrument of Figure 1;
[006] [006] Figure 3 shows a side elevation view of the surgical stapling instrument in Figure 1;
[007] [007] Figure 4 shows a perspective view of a staple cartridge set of the surgical stapling instrument of Figure 1;
[008] [008] Figure 5 shows an exploded view of the staple cartridge assembly of Figure 4;
[009] [009] Figure 6 shows a perspective view in cross section of the staple cartridge assembly of Figure 4, taken along line 6-6 of Figure 5;
[0010] [0010] Figure 7 shows an exploded view of a staple slide assembly of the surgical stapling instrument of Figure 1;
[0011] [0011] Figure 8 shows a perspective view of the clip slide assembly of Figure 7;
[0012] [0012] Figure 9 shows a perspective view of an anvil assembly of the surgical stapling instrument of Figure 1;
[0013] [0013] Figure 10A shows a cross-sectional side view of the surgical stapler in Figure 1, where a first portion and a second portion are uncoupled from each other, and where an arm cover of the second portion is shown detached from the first portion to illustration purposes;
[0014] [0014] Figure 10B shows a side view in cross section
[0015] [0015] Figure 10C shows a side view in cross section of the surgical instrument of Figure 1, where the first portion and the second portion of Figure 10A are coupled to each other in a partially closed position;
[0016] [0016] Figure 10D shows a side view in cross section of the surgical instrument of Figure 1, where the first portion and the second portion of Figure 10A are coupled together in a completely closed position;
[0017] [0017] Figure 11A shows a perspective view of the surgical instrument of Figure 1, where a trigger set is in a pre-triggered position;
[0018] [0018] Figure 11B shows a perspective view of the surgical instrument of Figure 1, where the firing assembly of Figure 11A is in a triggered position;
[0019] [0019] Figure 12 shows a perspective view in cross section of the staple cartridge assembly of Figure 4, taken along line 12-12 of Figure 5;
[0020] [0020] Figure 13 shows an exploded sectional view of the staple cartridge assembly of Figure 4, taken along line 12-12 of Figure 5;
[0021] [0021] Figure 14A shows a perspective view in cross section of the staple cartridge assembly of Figure 4 aligned for coupling with the first portion of Figure 10A, where the firing assembly of Figure 11A is in a locked configuration, taken along line 12-12 in Figure 5;
[0022] [0022] Figure 14B shows a perspective view in cross section of the staple cartridge assembly of Figure 4 coupled with the first portion of Figure 10A, where the firing assembly of Figure 11A is in an unlocked configuration, taken along the line 12-12 of Figure 5;
[0023] [0023] Figure 15A shows a perspective view in cross section of the first portion and the second portion of Figure 10A in the completely closed position, where the firing assembly of Figure 11A is in an unlocked configuration and a pre-triggered position, taken along line 12-12 of Figure 5;
[0024] [0024] Figure 15B shows a perspective view in cross section of the first portion and the second portion of Figure 10A in the completely closed position, where the firing set of Figure 11A is in a configured position unlocked and partially fired, taken along line 12-12 of Figure 5;
[0025] [0025] Figure 15C shows a perspective view in cross section of the first portion and the second portion of Figure 10A in the completely closed position, where the firing set of Figure 11A is in an unlocked configuration and a triggered position, taken along line 12-12 of Figure 5;
[0026] [0026] Figure 15D shows a perspective view in cross section of the first portion and the second portion of Figure 10A in the completely closed position, where the firing set of Figure 11A is in a locked configuration and a post-triggered position, taken along line 12-12 of Figure 5;
[0027] [0027] Figure 16 shows a perspective view of an exemplary alternative surgical stapling instrument, which can be used to replace the surgical stapling instrument in Figure 1;
[0028] [0028] Figure 17A shows a side view in cross section of the surgical stapling instrument of Figure 16 in a partially closed position, taken along line 17-17 of Figure 16;
[0029] [0029] Figure 17B represents a side view in cross section of the surgical stapling instrument of Figure 16 in a completely closed position, taken along line 17-17 of Figure 16;
[0030] [0030] Figure 18A shows a side view in cross section of the surgical instrument of Figure 16 in the partially closed position, where a firing set is in a locked configuration and a pre-firing position, taken along line 18-18 of Figure 16;
[0031] [0031] Figure 18B shows a side view in cross section of the surgical instrument of Figure 16 in the completely closed position, where the firing set of Figure 18A is in an unlocked configuration and a pre-triggered position, taken at along line 18-18 of Figure 16;
[0032] [0032] Figure 18C shows a side view in cross section of the surgical instrument of Figure 16 in the completely closed position, where the firing set of Figure 18A is in a configured position unlocked and partially fired, taken along take line 18-18 of Figure 16;
[0033] [0033] Figure 18D shows a side view in cross section of the surgical instrument of Figure 16 in the completely closed position, where the firing set of Figure 18A is in the locked configuration and a post-triggered position, taken along line 18-18 of Figure 16;
[0034] [0034] Figure 19A shows a bottom view in cross section of the surgical instrument of Figure 16 in the completely closed position, where the firing set of Figure 18A is in the unlocked configuration and in the pre-triggered position, taken along line 19-19 of Figure 16;
[0035] [0035] Figure 19B shows a bottom view in cross section of the surgical instrument of Figure 16 in the completely closed position
[0036] [0036] Figure 19C shows a bottom view in cross section of the surgical instrument of Figure 16 in the completely closed position, where the firing set of Figure 18A is in the locked configuration and in the post-triggered position, taken at along line 19-19 of Figure 16;
[0037] [0037] Figure 20A shows a side elevation view of a cartridge body of the surgical instrument of Figure 16 in a pre-triggered position; and
[0038] [0038] Figure 20B shows a side elevation view of the cartridge body of Figure 20A, in a post-triggered position.
[0039] [0039] The drawings are not intended to be limiting in any way and it is contemplated that various modalities of technology can be executed in a variety of other ways, including those not necessarily represented in the drawings. The drawings incorporated in the annex and forming a part of the specification illustrate various aspects of the present technology and, together with the description, serve to explain the principles of the technology; it is understood, however, that this technology is not limited precisely to the provisions shown. DETAILED DESCRIPTION
[0040] [0040] The following description of certain examples of the technology should not be used to limit its scope. Other examples, resources, aspects, modalities and advantages of the technology will become evident to those versed in the technique from the following description, which is given by way of illustration, one of the best ways contemplated to execute the technology. As will be understood, the technology in the present document described is capable of other different and obvious aspects, all without deviating from the technology. Consequently, drawings and descriptions should be considered as illustrative and not restrictive in nature.
[0041] [0041] For clarity of description, the terms "proximal", "distal", "upper" and "lower" are herein defined in relation to a human or robotic operator of the surgical instrument. The term "proximal" refers to the position of an element closer to the human or robotic operator of the surgical instrument and further away from the surgical end actuator of the surgical instrument. The term "distal" refers to the position of an element closer to the surgical end actuator of the surgical instrument and further away from the human or robotic operator of the surgical instrument. The terms "proximal," "distal," "upper" and "lower" are, therefore, relative terms and are not intended to unnecessarily limit the invention herein described. I. Overview of the exemplary linear cut stapler
[0042] [0042] Figure 1 shows an exemplary linear cut surgical stapler (100) that can be used for any suitable procedure, such as a gastrointestinal anastomosis. The linear cutting stapler (100) includes a first portion (102) having a staple cartridge channel (122), a second portion (104) having an anvil channel (130), a staple cartridge assembly ( 150) that can selectively couple to the cartridge channel (122) of the first portion (102), and a trigger assembly (200). As will be described in more detail below, the first portion (102) and the staple cartridge assembly (150) can pivotally couple with the second portion (104) to form an end actuator (120) capable of gripping, cutting and stapling captured tissue between opposite halves of the end actuator (120).
[0043] [0043] As best seen in Figures 3 to 6, the set of disks
[0044] [0044] Although in the present example, the actuator (204) is configured to pivot for each side (116, 117) of the instrument (100) to drive the actuation beam (202), this is merely optional, since the actuator (204) can be slidably coupled to the first portion
[0045] [0045] As seen in Figure 3, first portion (102) includes a first proximal structure (110), the staple cartridge channel (122) and a lock lever (180). The first proximal structure (110) extends from a proximal end (103) distally in the staple cartridge channel (122). In the present example, the first proximal structure (110) and the staple cartridge channel (122) are integrally formed so as to define a lengthened cartridge channel member with a unitary construction. The locking lever (180) is pivotally coupled to the staple cartridge channel (122) or the first proximal structure (110) using a pin (182). The first proximal structure (110) can be attached to a grip cover (108) configured to provide sufficient grip so that an operator can control the instrument (100) while he performs an appropriate procedure. The grip cover (108) can be coupled to the first proximal structure (110) by any suitable means, as would be evident to a person skilled in the art in view of the teachings of the present invention. Alternatively, the grip cover (108) can be unitarily coupled with the first proximal structure (110) or even omitted.
[0046] [0046] The first proximal structure (110) defines a channel that slidily accommodates the actuation beam (202) of the firing set
[0047] [0047] As briefly mentioned above, the staple cartridge channel (122) extends distally from the first proximal structure (110). As seen in Figure 2, the staple cartridge channel (122) is dimensioned to selectively engage and decouple the staple cartridge assembly (150). The staple cartridge channel (122) includes a lower wall (126), and two opposite side walls (124) extending from opposite ends of the lower wall (126). The walls (124, 126) are dimensioned to receive at least a portion of the staple cartridge assembly (150), as seen in Figure 4. In addition, the side walls (124) include side projections extending inwards (not shown) configured to receive coupling cutouts (140) defined by a proximal end of the staple cartridge assembly (150). The coupling cutters (140) can be dimensioned for a snap fit or snap fit with side projections extending inward (not shown) from the side walls (124) so that an operator can selectively secure and separate the staple cartridge assembly (150) to the staple cartridge channel (122). Although coupling cutouts (140) and side projections of internal extension (not shown) are used to selectively couple the staple cartridge assembly (150) to the staple cartridge channel (122), any other means of suitable coupling can be used as would be evident to one skilled in the art, in view of the teachings of the present invention. The side walls (124) of the staple cartridge channel (122) also include side flanges (128) each defining a notch or recess (127). The recesses (127) are sized to receive the lock projections (131) of the second portion (104) when the second portion (104) hinges so that the end actuator (120) is in a completely closed position (as shown) in Figure 10D) in relation to the first portion (102).
[0048] [0048] As briefly mentioned above, the lock lever (180) is articulated coupled to the rest of the first portion (102) by means of the pivot pin (182). The lock lever (180) includes a proximal extension arm (184) and a distal lock body (188). The proximal extension arm (184) can be pivoted around the pin (182) towards the first proximal structure (110) in order to rotate the distal lock body (188) towards the staple cartridge channel ( 122) so that the distal locking body (188) can engage and rotate the second portion (104) towards the first portion (102) to transition the end actuator (120) from a partially closed position (as shown in Figure 10C) to a completely closed position (as shown in Figure 10D).
[0049] [0049] The arm extending proximally (184) can be coupled to an arm cover (186) to promote sufficient grip so that an operator can hold the arm (184) while he performs an appropriate procedure. The arm cover (186) can be coupled with the proximal extension arm (184) by any suitable means, as would be apparent to one skilled in the art in view of the teachings of the present invention. Alternatively, the arm cover (186) can be unitarily coupled with the arm extending proximally (184) or even omitted.
[0050] [0050] The distal locking body (188) includes a pair of hooks (189). The distal lock body (188) also defines a corresponding pair of lock cutouts (185) located proximally to the hooks (189). As will be described in more detail below, each hook (189) is sized to initially contact and then capture the respective lock projection (131) of the second portion (104) so that the distal lock body (188) can It involves wrapping at least a portion of each lock projection (131) to further pivot the second portion (104) towards the first portion (102). As will also be described in more detail below, each lock cutout (185) is sized to receive a respective lock projection (131) when the end actuator (120) is in the closed position in relation to the first portion ( 102).
[0051] [0051] As best seen in Figures 4 to 6, the clamp cartridge assembly (150) includes a cartridge body (152), a bench (154) and a plurality of clamp drivers (168), each configured to trigger a respective clamp (not shown). The cartridge body (152) defines a plurality of clip cavities (151), a slot (156) and coupling cutouts (140). The clamp actuators (168) and the respective clamps (not shown) are slidably housed within a corresponding clamp cavity (151). When the first portion (102) and the second portion are coupled together (104), the staple cartridge assembly (150) and the staple cartridge channel (122) form an end actuator portion (120). As will be described in more detail below, the staple cartridge assembly (150) is configured to accommodate or receive the staple slide assembly (160) of the trigger assembly (200) so that the slide assembly staples (160) can act through the cartridge assembly (150) in order to simultaneously cut and staple the tissue captured between the two halves of the end actuator (120).
[0052] [0052] As mentioned above, the coupling cutouts (140) of the cartridge body (152) can be sized for a snap fit with the side projections (not shown) of the side walls (124) of the staple cartridge channel ( 122) so that an operator can selectively secure and separate the staple cartridge assembly (150) to the staple cartridge channel (122). The cartridge body (152) includes a distal nozzle (153). When the staple cartridge assembly (150) is properly coupled with the cartridge channel (122), the distal nozzle (153) can extend distally from the cartridge channel (122) to provide an atraumatic tip .
[0053] [0053] Additionally, the cartridge body (152) includes a clamp platform (158). The staple platform (158) partially defines staple cavities (151) so that the staple cavities (151) extend from inside the cartridge body (152) towards an open end on the staples (158). The staple cavities (151) house a corresponding staple driver (168) and a staple (not shown). Similarly, the staple platform (158) partially defines the slot (156) that extends from an interior of the cartridge body (152) towards an open end in the staple platform (158). The slot (156) is dimensioned to receive a portion of the sliding body
[0054] [0054] The tray (154) can include flexible arms (155). The flexible arms (155) can be configured to engage the cartridge body (152) so that the tray (154) can engage with the cartridge body (152) in a snap-on or snap-on relationship . The tray (154) can be coupled with the cartridge body (152) after the clamp drivers (168) and the clamps (not shown) have been inserted into the respective clamp cavities (151). The tray (154) can therefore act as a floor for the clamp drivers (168).
[0055] [0055] In the current example, the cartridge body (152) includes a slide assembly housing (170) located near the proximal end of the staple cartridge assembly (150). The slider assembly housing (170) is configured to initially house the clamp slide assembly (160) of the firing assembly (200). The casing of the slider assembly (170) includes a body (172) defining a cavity (174) having an opening facing it distally. The body (172) and the cavity (174) are dimensioned to accommodate a cutting member (164) of the slide assembly (160) before firing, thus acting as a sheath for the cutting member ( 164). When fired, the cutting member (164) can exit the casing of the slider assembly (170) through the cavity opening facing distally towards it (174).
[0056] [0056] As best seen in Figures 7 and 8, the slide assembly (160) includes a slide body (162) and a cutting member (164). The cutting member (164) includes a cutting edge (165) and a locking arm (166). A slider body (162) defines a cutout (161) and a slot (163). The slot (163) is dimensioned to receive a portion of the cutting member (164) so that the cutting member (164) and the sliding body (162) can act together. The cutting member (164) can be coupled with the sliding body (162) through an inferential fit with the slot (163), through the use of adhesives, or any other suitable form would be evident to one skilled in the art, having in view of the teachings of the present invention. Alternatively, the cutting member (164) can be coupled with the sliding body (162) in any suitable way, as would be evident to one skilled in the art, in view of the teachings of the present invention, as being connected and welded unitary, etc. The cutout (161) is dimensioned to couple with the distal end (201) of the actuation beam (202) when the staple cartridge assembly (150) is properly fixed to the staple cartridge channel (122). Therefore, when properly coupled, the actuating beam (202) can drive the slider assembly (160) longitudinally through the cartridge body (152). It should be understood that once the actuation beam (202) is coupled with the slider assembly (160) during exemplary use, the actuation beam (202) is also dimensioned to slide into the gap (156) defined by the cartridge body (152).
[0057] [0057] The slide body (162) also includes a plurality of cam surfaces (167) dimensioned to slide longitudinally into the respective elongated grooves (not shown) that pass through the staple cavities (151) of the cartridge body (152). In particular, the cam surfaces (167) are configured to engage and bend against the inclined surfaces (169) of staple actuators (168) within the staple cavities (151) in order to actuate staple actuators (168) towards the platform
[0058] [0058] As mentioned above, the staple slide assembly (160) is configured to mate with the rest of the trigger assembly (200) when the staple cartridge assembly (150) is properly coupled with the staple cartridge channel (122). In the current example, the clamp slide assembly (160) of the firing assembly (200) is associated with the cartridge assembly (150) so that after the cartridge assembly (150) is used and discarded, the same with the staple slide assembly (160). Therefore, when an additional cartridge assembly (150) is loaded into the staple cartridge channel (122), a new staple slide assembly (160) will be present. However, this is purely optional. For example, the staple slide set (160) can be attached or attached to the rest of the trigger set (200) so that the same staple slide set (160) can be used multiple times with multiple sets of staple cartridge (150). In such examples, the cartridge body (152) would not need a slide assembly housing (170). The various ways in which the staple slide assembly (160) can be incorporated into the staple cartridge assembly (150), staple channel (122), or first proximal structure (110) will be evident to those skilled in the art. technique in view of the teachings of the present invention.
[0059] [0059] As shown in Figures 2 and 3, the second portion (104) of the instrument (100) includes a second proximal structure (114), the anvil channel (130), lock projections (131) and an anvil plate (134). The second proximal structure (114) extends from a proximal end defining grooves (115) in the anvil channel (130). In the present example, the second proximal structure (114) and the anvil channel (130) are integrally formed in order to define an elongated member of the anvil channel with a unitary construction. The second proximal structure (114) can be attached to a grip cover (112) configured to provide sufficient grip so that an operator can control the instrument (100) while he performs an appropriate procedure. The grip cover (112) and the second proximal structure (114) can be coupled with each other by any suitable means, as will be apparent to one skilled in the art, in view of the teachings of the present invention. Alternatively, the handle cover (112) can be unitarily coupled with the second proximal structure (114) or even omitted. The second proximal structure (114) can also define a channel configured to enable the portions of the trigger set (200) to act in relation to the first portion (102) and the second portion (104) when the ex actuator - shaking (120) is in the completely closed position (as shown in Figure 10D).
[0060] [0060] The second portion (104) ends distally at a distal mouthpiece (139). The distal nozzle (139) can extend distally from the anvil channel (130) to provide an atraumatic tip. As shown in Figure 9, the proximal end of the anvil plate (134) defines a recess (179) sized to receive the slide assembly housing (170) when the first portion (102) and the second portion (104) are pivoted towards each other. As will be described in more detail below, the lock projections (131) extend laterally in the opposite direction to the anvil channel (130) and are dimensioned to interact with the distal lock body (180) to drag the plate the anvil (134) towards the staple cartridge assembly (150).
[0061] [0061] The anvil plate (134) defines a plurality of staple forming pockets (132) and a slot (133). The staple forming pockets (132) are positioned along the anvil plate (134) so that each staple forming pocket (132) aligns with a corresponding staple cavity (151) when the anvil channel (130) is pivoted towards the staple cartridge channel (122) to the completely closed position (as shown in Figures 1, 10D and 11A to B). Therefore, when the cam surfaces (167) of the slide body (162) actuate the clamp actuators (168) according to the above description, the clamps (not shown) are driven through the clamp cavities (151) in the direction opposite the staple plate (158), through the fabric, and against a corresponding staple forming pocket (132) so that the staples (not shown) change from a generic "U" shape to a generic "B" shape so that the fabric is properly stapled. The slot (133) is dimensioned to align laterally with the slot (156) of the staple cartridge assembly (150) when the anvil channel (130) is pivoted to the completely closed position (as shown in the Figures 1, 10D, 11A to 11B). The slot (133) is dimensioned to receive a portion of the cutting member (164) slidingly as the slide assembly (160) is driven through the staple cartridge assembly (150). so that the cutting member (164) can cut the tissue captured between the surface of the anvil (134) and the staple platform (158) during exemplary use.
[0062] [0062] As best seen in Figure 9, the second portion (104) of the instrument (100) of the present example additionally includes a height adjustment mechanism for the clamp (136). The adjustment mechanism (136) is operationally coupled with the anvil plate (134), for example via one or more cam features (not shown), and includes a pair of user-engageable projections (138). The adjustment mechanism (136) is selectively movable in relation to the anvil channel (130) between two or more longitudinal positions to raise or lower the anvil plate (134) in relation to the anvil channel (130), and so on. adjust a gap (or "fabric gap") between the anvil plate (134) and the staple platform (158) when the first and second portion of the instrument (102, 104) are coupled together the other in a completely closed position. A larger gap in the slot, and thus a higher staple height, can be provided to staple thicker fabrics. Similarly, a shorter span distance, and thus a lower staple height, can be provided to staple thinner fabrics. It will be recognized that the clamp height adjustment mechanism (136) is purely optional and can be omitted in other examples.
[0063] [0063] The linear cut surgical stapler (100) can be additionally configured and operable according to one or more teachings of US patent No. 7,905,381, entitled "Surgical Stapling Instrument with Cutting Member Arrangement", granted on March 15, 2011; US Patent No. 7,954,686, entitled "Surgical Stapler with Apparatus for Adjusting Staple Height", issued June 7, 2011; US Patent No. 8,348,129, entitled "Surgical Stapler Having A Closure Mechanism", issued on January 8, 2013; and in US Patent No. 8,789,740, entitled "Linear Cutting and Stapling Device with Selectively Disengageable Cutting Member", granted on July 29, 2014. The description of each of these patent applications is in the present incorporated document. as a reference.
[0064] [0064] Figures 10A to 11B show an exemplary use of the instrument (100). In particular, Figures 10A to 10D show an exemplary coupling of the first portion (102) with the second portion (104), and the articulation of the first portion (102) and the second portion (104) so that the end actuator ( 120) transitions from an open position (Figure 10B) to a partially closed position (Figure 10C) and finally to a completely closed position (Figure 10D). Figures 11A and 11B show an exemplary shot of the instrument (100) when the end actuator (120) is in a completely closed position.
[0065] [0065] Figure 10A shows the first portion (102) completely separated from the second portion (204). In addition, the staple cartridge assembly (150) is suitably attached to the staple cartridge channel (122) according to the description above. At this point, during a procedure, such as during a gastrointestinal anastomosis, an operator may wish to place the tissue lumens on and pass through the distal nozzles (139, 153) of the second portion (104) and the cartridge assembly (150 ), respectively, so that the tissue lumens are suitably associated with both the anvil plate (134) and the cartridge assembly (150). At this point, an operator can align the grooves (115) of the second portion (104) with the corresponding side projections (111) of the first portion (102) in the preparation of the initially articulated coupling of the first portion (102) with the second portion (104).
[0066] [0066] Then, as shown in Figure 10B, an operator can insert into the side projections (111) in corresponding grooves (115) so that the first portion (102) and the second portion (104) they are hingedly coupled, but the end actuator (120) is in an open position. The first portion (102) and the second portion (104) can rotate with respect to each other about the axis defined by the lateral projections (111). At this point, the lock lever (180) is not in contact with any portion of the second portion (104). Additionally, the lock lever (180) is in an open position so that the extension arm
[0067] [0067] Then, as shown in Figure 10C, an operator can initially articulate the anvil channel (130) and the anvil plate (134) towards the cartridge channel (122) and the cartridge assembly of clamps (150) and partially articulate the lock lever (180) so that the hooks (189) initially come into contact with the lock projections (131). At this point, the end actuator (120) is in the partially closed position. As best shown between Figures 10C to 10D, after the hooks (189) initially come into contact with the lock projections (131), an operator can additionally rotate the proximal extension arm (184) towards the first structure proximal (110), causing the distal lock body (188) to conduct the lock projections (131) along the surfaces of the distal lock body (188) towards the lock cutouts (185). As the lock projections (131) are directed towards the lock cutouts (185), the anvil channel (130) and the anvil plate (134) rotate further in the direction of the cartridge channel (122) and the staple cartridge assembly (150) so that the end actuator (120) is in the closed position. In addition, the lock projections (131) are also conducted towards the recesses (127) of the staple cartridge channel (122) so that each lock projection (131) is encompassed by a combination of the cutout (185) and locking recess (127), effectively locking the end actuator (120) in the closed position. The cutouts (185) and locking recesses (127) can be sized to interface with the locking projections (131) while the end actuator (120) is in the fully closed position so that projections of lock (131) and pivot pin (182) extend along a vertical geometric axis (VA) that is substantially perpendicular to the longitudinal geometric axis of the instrument (100). This can provide a mechanical advantage for an improved closing force during proper use.
[0068] [0068] Figures 11A to 11B show an exemplary shot of the instrument (100) with the end actuator (120) in the completely closed position. As best seen in Figure 11A, an operator can pivot the actuator (204) to both sides (116, 117) of the instrument (100). In the present example, the actuator (204) was pivoted to the second side (117) of the instrument (100). Then, the operator can push the actuator (204) distally towards the end actuator (120) inside the slot (118), so that the actuation beam (202) and the slider (160) are fired, stapling and cutting the fabric captured between the stapling platform (158) and the anvil plate (134) according to the description above. Once the instrument (100) has been triggered, an operator can pull the actuator (204) proximally back to the position shown in Figure 11A, then rotate the actuator (204) back to the position shown in Figure 1. An operator can then adjust the lock lever (180) so that the proximally extending arm (184) is pivoted away from the first proximal structure (110) in order to open the actuator. end (120) from the completely closed position to the partially closed position. An operator can further articulate the lock lever (180) so that the distal lock body (188) no longer captures lock projections (131). Then, an operator can decouple the first portion (102) and the second portion (104) from each other and replace the staple cartridge assembly (150), if desired.
[0069] [0069] It may be desirable to have a locking set configured to prevent triggering of the actuation beam (202) before loading the staple cartridge assembly (150) into the staple cartridge channel (122). In addition, it may be desirable to have a locking set configured to prevent multiple firing of the actuating beam (202) within a single clamp cartridge set (150). A locking set configured to prevent premature firing of the actuation beam (202) can reduce inadvertent and / or multiple firing of the firing set (200) so that an operator does not erroneously fire a cartridge set (150) with staples already implanted. A locking assembly that can also help secure the staple cartridge assembly (150) is properly loaded into the staple cartridge channel (122) prior to exemplary use.
[0070] [0070] Figures 14A to 15D show an exemplary locking assembly (215) configured to lock the firing assembly (200) before the staple cartridge assembly (150) is properly loaded into the cartridge channel (122) . In addition, the locking set (215) is configured to lock the firing set (200) after the actuating beam (202) and the staple slide set (160) have been triggered within the staple cartridge set (150). The locking assembly (215) includes an oscillating locking door (220) hingedly connected to an end proximal to the cartridge body (152), a locking block (125) fixed inside the cartridge channel. staples (122) and a leaf spring (113) within the staple cartridge channel (122). As will be described in more detail below, the leaf spring (113) is configured to propel the actuation beam (202) in engagement with the locking block (125) when the actuation beam (202) is in the pro position - ximal (as seen in Figure 14A), thus propelling the actuating beam (202) to a locked configuration.
[0071] [0071] The swinging locking door (220) is configured to engage the actuation beam (202) to force the actuation beam (402)
[0072] [0072] As best shown in Figures 12 to 13, the staple cartridge assembly (150) defines both a pivot hole (157) and a sweep recess (159). In addition, the swinging locking door (220) includes a pivot column (222) and a leg (224). The pivot column (222) is pivotally housed within the pivot hole (157). The leg (224) is configured to rotate from a first position (as shown in Figures 12 and 14A to 15A) towards a second disengaged position (as shown in Figures 15B to 15D) in response to the proper actuation of the set of shooting (200). The leg (224) extends through the slot (156) in the first position. In addition, the leg (224) is configured to urge the actuating beam (202) into the unlocked configuration while in the first position. In the second position, the leg (224) is housed within the sweeping recess (159) so that the leg (224) does not extend through the gap (156), thus preventing the leg (424) from reaching engage the actuation beam (202) while in the second position.
[0073] [0073] Figures 14A and 14B show an exemplary loading of the staple cartridge assembly (150) into the staple cartridge channel (122). Figure 14A shows the staple cartridge assembly (150) aligned with the staple cartridge channel (122) in preparation for loading. At this point, the actuation beam (202) is in the pre-fired proximal position so that the actuator (204) is in the position shown in Figure 1. The leaf spring (113) propels the actuation beam (202) to the locked configuration. In other words, the leaf spring (113) propels the actuating beam (202) away from the staple cartridge channel (122) so that the locking block (125) rests within a cutout of the actuation (202) partially defined by the locking face presented distally (214). At this point, if the operator tries to actuate the firing assembly (200) from the proximal position to a firing position according to the description above, the distally presented locking face (214) is contiguous against the locking block (125 ), thus avoiding a distal translation of the actuation beam (202).
[0074] [0074] Then, as shown in Figure 14B, an operator can properly load the staple cartridge assembly (150) into the staple cartridge channel (122). At this point, the leg (224) of the swinging locking door (220) is in the first position so that the leg (224) is contiguous against the platform (212) of the actuating beam (202) to overcome the propensity force leaf spring (113) and drive the actuating beam (202) of the locked configuration towards the unlocked configuration. Additionally, a distal projection (210) of the actuation beam (202) slides without cutout (161) within the staple slide assembly (160), thus properly coupling the staple slide assembly (160) with the performance (202). It should be understood that in the examples where the staple slide assembly (160) is associated with the actuation beam (202) instead of the staple cartridge assembly (150), the actuation beam (202) and the assembly clamp slider (160) are already properly coupled
[0075] [0075] Figures 15A and 15B show the locking set (215) during an exemplary shot of the instrument (100) according to the description above. Figure 15A shows the staple cartridge assembly (150) properly loaded into the staple cartridge channel (122) as described above, with the end actuator (120) in the fully closed position and the dismantling assembly - ro (200) in the pre-triggered proximal position. Therefore, at this point, the actuation beam (202) is pushed into the configuration unlocked by the leg (224) of the swinging locking door (220) so that the locking block (125) does not prevent the distal translation of the actuation beam. (202). Then an operator can rotate and move the actuator (204) to activate the firing set as described above.
[0076] [0076] As seen in Figure 15B, the distal actuation of the firing assembly (200) causes a sweeping projection (216) of the actuation beam (202) to rotate the leg (224) of the swinging locking door (220) from the first position to the second position within the scan recess (159) of the cartridge body (152). As the leg (224) of the swinging locking door (220) no longer extends through the slot (156) to be contiguous against the platform (212), the blade frame (113) can propel the actuation beam (202) upwards. However, it should be understood that the locking face presented distally (214) of the actuation beam (202) has already moved distally beyond the locking block (125) in such a way that the locking block (125) may not prevent the distal translation of the actuation beam (202) at this time. Then, as seen in Figure 15C, an operator can still move the actuating beam (202) and the staple slide assembly (160) into the staple cartridge assembly (152) according to the description above for staple and cut the captured tissue between the end actuator (120).
[0077] [0077] As shown in Figure 15D, when an operator proximally moves the actuating beam (202) and the clamp slider assembly (160) towards a post-fired proximal position, the door leg (224) oscillating lock (220) is still in the second position housed within the sweep recess (159) of the cartridge body (152). As the leg (224) does not extend through the slot (156) in the second position, the leg (224) can no longer come into contact with the actuating beam (202) when coupled to the staple cartridge channel (122 ). Therefore, the leaf spring (113) can propel the actuation beam (202) to the locked configuration, even though the staple cartridge assembly (150) is still loaded in the staple cartridge channel (122), preventing thus a second shot of the instrument (100) with the same staple cartridge assembly (150). If an operator wishes to use the instrument (100) again, an operator can remove the used staple cartridge set (150), replace it with a new staple cartridge set (150) and repeat the process according to the description above. II. Exemplary linear cut stapler with alternative locking set
[0078] [0078] In some cases, an operator may accidentally move the actuator (204) distally from the pre-triggered proximal position, while an unused batch cartridge assembly (150) is properly loaded, but before the end actuator (120 ) is locked in the fully closed position. For example, an operator can properly load the staple cartridge assembly (150) into the staple cartridge channel (120), articulate the first portion (102) with the second portion (104) through the grooves ( 115) and side projections (111), articulate the end actuator (120) to the partially closed position, then inadvertently partially move the actuator (204) distally so that the sweeping projection (216) rotates the leg (224 ) of the swinging locking door (220) to the sweep recess (159) without firing the clamps. The operator can then move the actuator (204) proximally back to the pre-triggered proximal position, the hinged-end actuator (120) to the fully closed position and then attempt to fully activate the trigger assembly (200) according to the description above. However, due to the inadvertent translation of the actuator (204), the leg (224) may have been inadvertently pivoted to the second position within the sweep recess (159). With the leg (224) in the second position, the actuation beam (202) will be in the locked configuration so that the stapled cartridge assembly (150) is not usable. Therefore, it may be desirable to avoid partial pre-firing of the firing set (200) by providing a locking set that is configured to keep the firing set (200) in the locked configuration until the end actuator (120) is ready to fire; as when the end actuator (120) is hinged in the fully closed configuration.
[0079] [0079] Figures 16 to 17B show an exemplary linear cut stapler (300) configured to prevent the stapler from firing (300) until a stapler end actuator (320) (300) is in the fully closed configuration with a set clipped cartridge properly attached, not fired (350). The linear cut stapler (300) includes a first portion (302) having a staple cartridge channel (322), a second portion (304) having an anvil channel (330), the staple cartridge assembly ( 350) that can be selectively coupled
[0080] [0080] The firing assembly (400) includes an actuation beam (402), a clamp slide assembly (360), an actuator (404) (also called a "firing button") and an articulation arm (406); which are substantially similar to the actuation beam (202), the clamp slide assembly (160), the actuator (204) and the articulation arm (206) described above, respectfully, with the differences elaborated below. Therefore, the actuator (404) and the articulated arm (406) can rotate from a proximal position to either side of the actuation beam (402), thus allowing an operator to operate the firing assembly (400) from a first side (316 ) or on a second side (317) of the instrument (300) when the portions (302, 304) are properly coupled and the end actuator (320) is in the completely closed position. In addition, the first portion (302) and the second portion (304) define a slot (318) sized to accommodate the translation of the actuator (404).
[0081] [0081] The actuation beam (402) includes a locking face presented distally (414) and a sweeping projection (416). As will be described in more detail below, the locking face (414) is configured to prevent distal translation of the actuation beam (402) while in the locked configuration; while the scan projection (416)
[0082] [0082] The first portion (302) includes a first proximal structure (310), the staple cartridge channel (322) and a lock lever (380); which are substantially similar to the first proximal structure (110), the staple cartridge channel (122) and the lock lever (180) described above, respectively. Therefore, the first proximal structure (310) extends from a proximal end (103) distally to the staple cartridge channel (322). The first proximal structure (310) can be coupled with a handle cover (308), which can be substantially similar to the handle cover (108) described above. The proximal end (303) includes one or more side pins, or projections (311), which can be substantially similar to the projections (111) described above. Therefore, the projections (311) are configured to receive the grooves (315) of the second portion (304) to initially couple the first and second portions (302, 304) in an artful way. The staple cartridge channel (322) is sized to selectively engage and decouple with the staple cartridge assembly (350). The staple cartridge channel (322) defines notches or recesses (327). The recesses (327) are dimensioned to receive lock projections (331) of the second portion (304) when the second portion (304) articulates so that the end actuator (320) is in a completely closed position in relation to the first portion (302).
[0083] [0083] The lock lever (380) is articulated coupled to the staple cartridge channel (322) or to the first proximal structure (310) by means of a pin (382). The lock lever (380) includes a proximal extension arm (384) and a distal lock body (388), which are substantially similar to the proximal extension arm (184) and the distal lock body (188) described above, respectively
[0084] [0084] As will be described in more detail below, the lock lever (380) includes a protrusion (387) configured to be contiguous against a portion of a lock assembly (415) so that the lock assembly lock (415) can selectively move the actuating beam (402) from a locked configuration to an unlocked configuration when the lock lever (380) pivots the end actuator (320) from the partially closed position to the completely closed position.
[0085] [0085] The staple cartridge assembly (350) includes a cartridge body (352), a drum (not shown), and a plurality of staple triggers (not shown), each configured to drive a respective staple (not shown). shown); which are substantially similar to the cartridge body (152), the drum (154) and clamp drivers (168) described above, respectively. The cartridge body terminates at a distal nozzle (353), which is substantially similar to the distal nozzle (153) described above. The cartridge body (352) defines a plurality of staple cavities (not shown), a slot (356), and coupling indentations (not shown), which are substantially similar to the staple cavities (151), the slot (156) and the coupling cutouts (140) described above, respectively. In addition, the cartridge body (352) includes a staple platform (358), which is substantially similar to the staple platform (158) described above. The slide assembly (360) includes a slide body (162) and a cutting member (364), which are substantially similar to the slide body (162) and the cutting member (164) described above, respectively.
[0086] [0086] The second portion (304) of the instrument (300) includes a second proximal structure (314), the anvil channel (330), the lock projections (331) and an anvil plate (334), which it is substantially similar to the proximal structure (114), the anvil channel (130), the lock projections (131) and the anvil plate (134) described above, respectively. The second proximal structure (314) can be coupled to a handle cover (312), which is substantially similar to the handle cover (112) described above. The second portion (304) ends distally at a distal mouthpiece (339), which is substantially similar to the distal mouthpiece (139) described above. The second portion (404) of the instrument (400) of the present example additionally includes a clamp height adjustment mechanism (336), which can be substantially similar to the clamp height adjustment mechanism (136) described above .
[0087] [0087] Figures 18A to 19C show the exemplary locking assembly (415) configured to lock the firing assembly (400) before the end actuator (320) is pivoted to the fully closed position with a cartridge assembly. staples do not
[0088] [0088] The locking assembly (415) includes an oscillating locking door (420) hingedly connected to a proximal end of the cartridge body (352), a locking block (325) fixed within the channel of the stapled cartridge ( 322) and a leaf spring (313) within the staple cartridge channel (322). The leaf spring (313) is configured to propose the actuation beam (402) in engagement with the locking block (325) when the actuation beam (402) is in a proximal position, thus impelling the actuation beam (402) for a locked configuration. In particular, the locking face presented distally (414) from the actuation beam (402) may be contiguous against the locking block (325) in the locked configuration, thus avoiding the distal translation of the actuation beam (402 ). While the leaf spring (113) of the stapler (100) was configured to propel the actuation (202) in the opposite direction of the staple cartridge channel (122); in the current example, the leaf spring (313) is configured to propel the actuating beam (402) towards the staple cartridge channel (322).
[0089] [0089] As will be described in more detail below, the swinging locking door (420) is configured to act in relation to the staple cartridge assembly (250) in order to engage and force the actuation beam (402) out of the alignment with the locking block (425), in an unlocked configuration, in response to the end actuator (320) rotating to the fully closed position. In addition, the swinging locking door (420) is also configured to rotate out of the hitch with the actuation beam
[0090] [0090] The staple cartridge assembly (350) defines both a pivot hole (357) and a sweep recess (359). A circumferential flange (349) is located inside the pivot hole (357). As will be described in more detail below, the circumferential flange (349) can act as a floor support for the swinging locking door (420) so that the swinging locking door (420) can act vertically in relation to to the pivot hole (357) without falling or otherwise disassociating from the staple cartridge assembly (350). While in the current example, a circumferential flange (349) is used as a floor support for the swinging locking door (420), any other suitable floor support can be used as would be evident to a person skilled in the art. view of the teachings of this document.
[0091] [0091] The swinging locking door (420) includes a pivot column (422) and a leg (424). The pivot column (422) is housed in a rotating and sliding manner within the pivot hole (357). In other words, the pivot column (422) can rotate and translate into the pivot hole (357). In particular, the swing door (420) is configured to act between a non-engaging position (as shown in Figure 18A) and an engaging position (as shown in Figure 18B) in response to the rotational position of the lock lever (380). In particular, when the lock lever (380) is not in the fully closed position, the protrusion (387) does not come into contact with the swing door (420) so that the swing door (420) is in the non-engaging position . However, the protrusion (387) of the lock lever (380) is sized to be contiguous against the swing door (420) when the lock lever (380) rotates the end actuator (320) to the fully closed position. Therefore, the protrusion (387) drives the swing door (420) in the lockable position when the end actuator (320) is in the completely closed position.
[0092] [0092] Additionally, the leg (424) is configured to rotate from a first rotational position (as shown in Figures 18A to 18B and 19A) towards a second rotational position (as shown in Figures 18C and 19B to 19C) in response distal actuation of the firing set (400). The leg (424) extends beyond the slot (356) of the cartridge body (352) in the first rotational position, while the leg (424) does not extend through the slot (356) of the cartridge body (352) in the second rotational position. As will be described in more detail below, the actuation beam (402) of the firing set (400) includes a sweeping projection (416) configured to pivot the leg (424) from the first rotational position to the second position rotational in response to the distal translation of the actuation beam (402).
[0093] [0093] Depending on the rotational position of the leg (424), the swing door (420) can be configured to activate the actuation beam (402) between the locked configuration and the unlocked configuration based on the swing door (420) acting between the non-engaging position and the engaging position. In particular, as will be described in more detail below, when the leg (424) is in the first rotational position, the actuation of the swing door (420) between the non-engaging position and the position
[0094] [0094] Figures 18A to 19C show an operation of the locking set (415) during the exemplary use of the stapler (300) according to the description above. Figure 18A shows the locking assembly (415) while the end actuator (320) is in the partially closed position (as also shown in Figure 17A) with a suitably pre-triggered clip cartridge assembly (350) loaded in the staple cartridge channel (322). Therefore, it should be understood that the lateral projections (311) are housed within grooves (315) to initially articulate the first portion (302) with the second portion (304), and the distal locking body (388) being rotated to initially engage locking projections (331) of the second portion (304). While the end actuator (320) is in the partially closed position and the trigger assembly (400) is in the pre-
[0095] [0095] The leg (424) of the swinging locking door (420) is initially in the first position, where the leg (424) extends beyond the slot (356) of the cartridge body (352) (as shown in Figure 19A) . As mentioned above, the pivot column (422) of the swinging locking door (420) is slidably housed within the pivot hole (357) while the circumferential flange (349) acts as a floor support to prevent the column pivot (422) falls from the pivot hole (357). As also mentioned above, the lock lever (380) includes a protrusion (387) sized to be in a boundary position against the swinging locking door (420) when the lock lever (380) rotates the end actuator (320 ) in the completely closed position and the leg (324) is in the first rotational position. However, since the lock lever (380) is in the position associated with the end actuator (320) being in the partially closed position, the protrusion (387) is not engaged with the leg (424). Therefore, the leaf spring (313) tends the actuation beam (402) towards the staple cartridge channel (322), while the leg (324) of the swinging locking door (420) is in the non-engaging position. . As the circumferential flange (348) acts as a floor support, the pivot column (422) is prevented from falling out of the pivot hole (357).
[0096] [0096] It should be understood that while the locking set (215) described above transitions the actuation beam (202) in the unlocked configuration when a set of pre-fired staple cartridge (150) is initially loaded; in the current locking assembly (415), although a pre-triggered staple cartridge assembly (350) is properly loaded into the staple cartridge channel (322), and the end actuator (320) is pivoted to in the partially closed position, the actuation beam (402) is still locked and prevented from being moved distally. This can help prevent accidental distal translation of the trigger assembly (400).
[0097] [0097] Then, as shown in Figure 18B, an operator can rotate the lock lever (380) so that the end actuator (320) rotates to the fully closed position (as also shown in Figure 17B ) as described above. At this point, the lock lever (380) is pivoted around the pivot pin (382) so that the protrusion (387) is contiguous against the leg (324) of the swinging locking door (420). As the pivot column (422) of the swinging locking door (420) is slidably housed inside the pivot hole (357), when the protrusion (387) is contiguous against the swinging door (420), the swinging door (420) is actuated upwards inside the pivot hole (357) in the raised position. As the leg (324) of a swinging locking door (420) is still in the first position that extends through the slot (356) (as shown in Figure 19A), the upward movement of the swinging door (420) causes the leg (324) raise the actuating beam (402) upwards, exceeding the propensity force of the leaf spring (313), so that the locking face (414) is no longer in contact or otherwise blocked by the locking block (325). With the locking face (414) no longer obstructed by the locking block (325), the actuating beam (402) is in the unlocked configuration. In other words, when the end actuator (320) is pivoted to the fully closed position with a pre-fired clamp cartridge assembly (350), the actuating beam (402) transitions from the locked configuration to the unlocked configuration .
[0098] [0098] With the locking set (415) pushing the actuation beam (402) into the unlocked configuration, an operator can then actuate the firing set (400) distally according to the description above. As is best shown in Figures 18C and 19B, during the initial actuation of the distal trigger set (400), the sweeping projection (416) may come in contact with the leg (424) of the swinging locking door (420). As the pivot column (422) is articulated coupled within the pivot hole (357), the contact between the projection (416) and the leg (424) articulates the leg (424) from the first rotational position to the second rotational position. As shown in Figure 19B, when the leg (424) is in the second position, the leg (424) no longer extends beyond the slot (356) of the cartridge body (352). Therefore, the leg (424) is no longer capable of engaging the actuation beam (402), so that the leaf spring (313) can propel the actuation beam (402) back towards the staple cartridge channel. (322).
[0099] [0099] As can best be seen in Figures 18D and 19C, once the firing set (400) was fired and retracted according to the above description so that the actuation beam is in the post-fired proximal position, the leaf spring (313) tilts the actuation beam (402) so that the locking face (414) is obstructed by the locking block (325). As the leg (424) of a used staple cartridge set (350) is in the second rotational position in response to the distal translation of the actuating beam (402), the leg (424) is unable to engage the actuating beam (402) in the post-fired proximal position, even when the lock lever (380) articulates the end actuator (320) in the closed position. Therefore, if an operator tries to use the stapler (300) a second time with the same staple cartridge set (350), the locking set (415) will prevent the operator from firing set action (400) .
[00100] [00100] In some cases, it may be useful to visually confirm whether the staple cartridge set (350) has been previously used or not. As shown in Figures 20A to 20B, the cartridge body (352) defines a viewing window (345). In addition, the leg (424) of the swinging locking door (420) includes an indication portion (426). The indicating portion (426) can include a visual marking that is distinct from the cartridge body portion (352) defining the viewing window (345). The viewing window (345) is located adjacent to the scanning recess (359) so that the display portion (426) of the leg (424) can be seen from the viewing window (345) when the leg (424) it is in the second rotational position, but also so that the display portion (426) is not easily visible when the leg (424) is in the first rotational position. As the cartridge assembly (350) is effectively locked when the leg (424) is in the second rotational position while the firing assembly (400) is in the proximal position, if an operator sees the indication portion (426) of the leg (424) through the viewing window (345), an operator can confirm that the cartridge assembly (350) will not work on the stapler (300) when attached because the trigger assembly (400) will remain in the locked configuration. Therefore, when the indicating portion (426) of the leg (424) is visible from the viewing window (345) defined by the cartridge body (352), an operator may be able to visually confirm that the cartridge assembly staple (350) is not usable for stapling and cutting the fabric together with the rest of the stapler (300), and can be discarded. III. Exemplary combinations
[00101] [00101] The following examples refer to several non-exhaustive ways in which the teachings of the present invention can be
[00102] [00102] Apparatus, the apparatus being characterized by comprising: (a) a handle set, the handle set comprising: (i) a first arm, (ii) a second arm, the second arm being configured to articulate coupling with the first arm in a proximal pivot location, and (iii) a lock lever articulated to the first arm in a distal pivot location; (b) an end actuator, the end actuator comprising: (i) a first claw extending distally from the first arm, (ii) a second claw extending distally from the second arm, the second claw being configured to pivot in relation to the first claw between an open configuration, a partially closed configuration, and a completely closed configuration, the lock lever being configured to engage the second or second arm grapple to pivot the second grapple from the partially closed configuration towards the completely closed configuration, and (iii) a staple cartridge assembly comprising a cartridge body that houses a plurality of staples, and the staple cartridge assembly is configured to couple with the first claw or the second claw; (c) a firing set configured to act from a pre-fired proximal position towards a distal position to clamp and cut the captured tissue between the first claw and the second claw; and (d) a locking set configured to prevent the trip set from translating to a locked configuration and allowing the trip set to be distal translated into an unlocked configuration, the lock lever being configured to act the locking set from the locked setting to the unlocked setting in response to the action of the lock lever pivoting the second claw, from the partially closed setting to the fully closed setting while the firing set is in the pre- fired. Example 2
[00103] [00103] The device, according to Example 1, and the trigger set is configured to act from the distal position to a post-triggered proximal position. Example 3
[00104] [00104] The device, according to Example 2, and the locking set is configured to keep the trigger set in the locked setting when the trigger set acts from the distal position to the post-triggered proximal position . Example 4
[00105] [00105] The device, according to Example 3, the control being
[00106] [00106] The apparatus, according to Example 4, the locking set additionally comprising a swing door associated with the cartridge assembly, the swing door being configured to pivot between a first rotational position and a second rotational position in response to the distal translation of the actuation beam. Example 6
[00107] [00107] The device, according to Example 5, and the swing door is operable to actuate the trigger set between the unlocked configuration and the locked configuration in the first rotational position. Example 7
[00108] [00108] The apparatus, according to Example 6, with the swing door not being operable to actuate the trigger set between an unlocked configuration and a configuration locked in the second rotational position. Example 8
[00109] [00109] The apparatus, according to Example 7, the oscillating door comprising a pivot column and a leg. Example 9
[00110] [00110] The apparatus, according to Example 8, with the cartridge set defining a pivot hole and a sweep indentation, the pivot column being housed in the pivot hole, the leg is housed in the scan recess. Example 10
[00111] [00111] The apparatus, according to Example 9, with the co-
[00112] [00112] The apparatus, according to any one or more of Examples 1 to 10, the locking assembly comprising a projection associated with the locking lever. Example 12
[00113] [00113] The device, according to Example 11, and the projection is configured to actuate the locking set of the locked configuration for the unlocked configuration. Example 13
[00114] [00114] The apparatus, according to any one or more of Examples 1 to 12, the firing set comprising a firing button articulated coupled to the first arm. Example 14
[00115] [00115] The apparatus of any one or more of Examples 1 to 13, the staple cartridge assembly additionally comprising a cutting member. Example 15
[00116] [00116] The apparatus, according to Example 14, the firing set comprising a firing bar that has a distal projection, the purpose of the distal projection being to selectively couple to the cutting member of the cartridge assembly Bobby pins. Example 16
[00117] [00117] Apparatus, the apparatus being characterized by comprising: (a) a handle set, with the handle set comprising: (i) a first arm, (ii) a second arm, the second being arm is configured to be pivotally coupled with the first arm at a proximal pivot location, and (iii) a lock lever pivotally attached to the first arm at a distal pivot location; (b) an end actuator, the end actuator comprising: (i) a first jaw extending distally from the first arm, (ii) a second jaw extending distally from the second arm, with the lock lever is configured to engage the second arm or the second claw to rotate the second claw from a partially closed configuration towards a completely closed configuration, and (iii) a staple cartridge assembly comprising a cartridge body that houses a plurality of staples, the staple cartridge assembly being configured to mate with the first jaw or the second jaw; (c) a firing set configured to act from a proximal position towards a pre-fired distal position to staple the tissue captured between the first claw and the second claw in the completely closed configuration, with the set of trigger is configured to act from the distal position to a post-triggered proximal position; (d) a locking set configured to act from a locked configuration to an unlocked configuration in response to the action of the locking lever that articulates the second claw of the partially closed configuration to the completely closed configuration, the set of locking is configured to remain locked in the locked configuration when the trigger set is in the proximal post-triggered position. Example 17
[00118] [00118] The apparatus, according to Example 16, the locking assembly comprising a locking block associated with the first claw or the second claw. Example 18
[00119] [00119] The device, according to Example 17, and the firing set comprises an actuation beam that defines a cutout configured to be contiguous with the locking block in the locked configuration. Example 19
[00120] [00120] The apparatus, according to Example 18, the locking set comprising a bias member configured to propose the actuation beam towards the locking block. Example 20
[00121] [00121] Apparatus, the apparatus being characterized by comprising: (a) a handle assembly, the handle assembly comprising: (i) a first arm, (ii) a second arm, the second arm being configured to articulate coupling with the first arm in a proximal pivot location, and (iii) a lock lever articulated to the first arm in a pivot location; (b) an end actuator, the end actuator comprising: (i) a first claw extending distally from the first arm, (ii) a second claw extending distally from the second arm, the second claw being configured to pivot in relation to the first claw between an open configuration, a partially closed configuration, and a completely closed configuration, the lock lever being configured to engage the second or second arm claw to pivot the second claw from the partially closed configuration towards the completely closed configuration, and (iii) a staple cartridge assembly comprising a cartridge body that houses a plurality of staples, the assembly being staple cartridge is configured to couple with the first claw or the second claw; (c) a firing set configured to act from a pre-fired proximal position towards a distal position to staple the tissue captured between the first claw and the second claw; and (d) a locking set configured to transition from a locked configuration to an unlocked configuration, the locking set being configured to prevent distal actuation of the firing set in a locked configuration, the locking set comprising: (i) a first projection associated with the lock lever, (ii) a second projection associated with the trigger assembly, and (iii) an oscillating door associated with the staple cartridge assembly , with the swing door being configured to act between a non-engaging position and an engaging position in response to the first projection that triggers the swing door, with the swing door being configured to rotate between a first rotation position and a second rotation position in response to the second projection that rotates the swing door, the first projection being configured to act only in the unlocked configuration when the swing door is in the engaging position l and in the first rotation position. IV. General considerations
[00122] [00122] Any one or more of the teachings, expressions, versions, examples, etc., in this document described can be combined with any one or more among the other teachings, expressions, versions, examples, etc., that are described in present invention. The teachings, expressions, modalities, examples, etc. described above should therefore not be seen as isolated from each other. Various suitable ways in which the teachings of the present invention can be combined will become readily apparent to those skilled in the art in view of the teachings of the present invention. These modifications and variations are intended to be included in the scope of the appended claims.
[00123] [00123] Furthermore, it is understood that any one or more of the teachings, expressions, modalities, examples etc. described in this document can be combined with any one or more of the other teachings, expressions, modalities, examples etc. which are described in the US patent application in [Ref. Atty. END7969USNP], entitled "Release Mechanism for Linear Surgical Stapler", filed on the same date as this order; US patent application in [Ref. Atty. END7970USNP], entitled "Lockout Assembly for Linear Surgeical Stapler", filed on the same date as this order; US patent application in [Ref. Atty. END7971USNP], entitled "Features to Align and Close Linear Surgical Stapler", filed on the same date as this application; US patent application in [Ref. Atty. END7972USNP], entitled "Releasable Coupling Features for Proximal Portions of Linear Surgical Stapler", filed on the same date as this order; US patent application in [Ref. Atty. END7973USNP], entitled "Firing Lever Assembly for Linear Surgical Stapler", filed on the same date as this order; and US patent application in [Ref. Atty. END7974USNP], entitled "Clamping Mechanism for Linear Surgical Stapler", filed on the same date as this application. The description of each of these patent applications is in the present document incorporated by reference.
[00124] [00124] It should be understood that any patent, publication or other description material that, in whole or in part, is said to be in this incorporated document for reference, is in this incorporated document only to the extent that that the embedded material does not conflict with the definitions, statements or other description materials presented in this description. Thus, and as necessary, the description as explicitly presented in this document replaces any conflicting material incorporated by reference to the present invention. Any material, or portion thereof, taken as contained in this document for reference purposes, but which conflicts with the definitions, statements, or other description materials in this document presented will be contained in this document only. to the extent that there is no conflict between the embedded material and the existing description material.
[00125] [00125] Versions of the devices described above may have application in conventional medical treatments and procedures conducted by a medical professional, as well as application in medical treatments and procedures assisted by robotics. By way of example only, several teachings of the present invention can readily be incorporated into a robotic surgical system such as the DAVINCI ™ system from Intuitive Surgical, Inc., Sunnyvale, California, USA.
[00126] [00126] The versions described above can be designed to be discarded after a single use or can be designed to be used multiple times. The versions can, in either or both cases, be reconditioned for reuse after at least one use. Reconditioning can include any combination of steps to disassemble the device, followed by cleaning or changing specific parts and subsequent reassembly. In particular, some versions of the device can be disassembled and any number of parts or parts of the device can be selectively replaced or removed in any combination. With the cleaning and / or replacement of specific parts, some versions of the device can be reassembled for subsequent use in a reconditioning facility or by an operator immediately before a surgical procedure. Those skilled in the art will understand that the reconditioning of a device can use a variety of disassembly, cleaning / replacement and reassembly techniques. The use of these techniques, as well as the resulting refurbished device, are all within the scope of this application.
[00127] [00127] Just as an example, the versions in this document
[00128] [00128] Having shown and described various modalities of the present invention, other adaptations of the methods and systems described in the present document can be carried out by means of suitable modifications by a person skilled in the art without leaving the glass. present invention. Several of these possible modifications were mentioned, and others will be evident to those skilled in the art. For example, the examples, modalities, geometries, materials, dimensions, proportions, steps and the like discussed above are illustrative and are not mandatory. Consequently, the scope of the present invention must be considered in accordance with the following claims, and it should be understood that it is not limited to the details of structure and operation shown and described in the specification and drawings.

权利要求:
Claims (20)
[1]
1. Apparatus, characterized in that the apparatus comprises: (a) a handle assembly, the handle assembly comprising: (i) a first arm, (ii) a second arm, the second arm being configured for coupling articulatively to the first arm at a proximal pivot site, and (iii) a lock lever articulated to the first arm at a distal pivot site; (b) an end actuator, the end actuator comprising: (i) a first jaw extending distally from the first arm, (ii) a second jaw extending distally from the second arm, with the second claw is configured to pivot in relation to the first claw between an open configuration, a partially closed configuration and a completely closed configuration, the lock lever being configured to engage the second arm or the second claw to pivot the second claw of the partially closed configuration towards the completely closed configuration, and (iii) a staple cartridge assembly comprising a cartridge body housing a plurality of staples, the staple cartridge assembly being configured to engage with the first claw or the second claw; (c) a firing set configured to act from a pre-firing proximal position towards a distal position to staple and cut the tissue captured between the first claw and the second claw; and
(d) a locking set configured to prevent the distal translation of the firing set in a locked configuration and enabling the distal translation of the firing set in an unlocked configuration, with the lock lever being configured to actuate the locking set of the locked configuration for the unlocked configuration in response to the action of the lock lever rotating the second claw, from the partially closed configuration to the fully closed configuration while the firing set is in the proximal position pre-shooting.
[2]
2. Apparatus according to claim 1, characterized in that the firing set is configured to act from the distal position to a proximal post-firing position.
[3]
3. Apparatus according to claim 2, characterized in that the locking set is configured to maintain the firing set in the locked configuration when the firing set acts from the distal position to the proximal post-firing position .
[4]
4. Apparatus, according to claim 3, characterized in that the firing set comprises an actuation beam, the locking set comprising a bias member configured to propose the actuation beam for the locked configuration.
[5]
5. Apparatus according to claim 4, characterized in that the locking assembly further comprises a swing door associated with the cartridge assembly, the swing door being configured to pivot between a first rotational position and a second position rotational in response to the distal translation of the actuation beam.
[6]
6. Apparatus, according to claim 5, characterized in that the oscillation of the door is intended to actuate the trigger set between the unlocked configuration and the locked configuration in the first position
rotational rotation.
[7]
7. Apparatus according to claim 6, characterized in that the oscillation of the door cannot activate the trigger set between an unlocked configuration and a locked configuration in the second rotational position.
[8]
Apparatus according to claim 7, characterized in that the swing door comprises a pivot rod and a leg.
[9]
9. Apparatus according to claim 8, characterized in that the cartridge assembly defines a pivot hole and a sweep recess in the opposite direction, the pivot rod being housed in the pivot hole, the leg being housed in the scanning recess in the opposite direction.
[10]
Apparatus according to claim 9, characterized in that the pivot rod is configured to translate and rotate in the pivot hole.
[11]
Apparatus according to claim 1, characterized in that the locking assembly comprises a projection associated with the locking lever.
[12]
12. Apparatus, according to claim 11, characterized in that the projection is configured to actuate the locking set of the locked configuration for the unlocked configuration.
[13]
Apparatus according to claim 1, characterized in that the firing assembly comprises a firing button articulated coupled with the first arm.
[14]
Apparatus according to claim 1, characterized in that the staple cartridge assembly further comprises a cutting member.
[15]
15. Apparatus according to claim 14, characterized in that the firing set comprises a firing arm that has a distal projection, the purpose of the distal projection being to selectively couple to the cutting member of the set of staple cartridge.
[16]
16. Apparatus, characterized in that the apparatus comprises: (a) a handle assembly, the handle assembly comprising: (i) a first arm, (ii) a second arm, the second arm being configured for coupling articulatively to the first arm at a proximal pivot site, and (iii) a lock lever articulated to the first arm at a distal pivot site; (b) an end actuator, the end actuator comprising: (i) a first claw extending distally from the first arm, (ii) a second claw extending distally from the second arm, with the lock lever is configured to engage the second arm or the second claw to pivot the second claw from a partially closed configuration towards a completely closed configuration, and (iii) a staple cartridge assembly comprising a cartridge body that houses a plurality of clamps, the clamp cartridge assembly being configured to mate with the first claw or the second claw; (c) a firing set configured to act from a proximal position towards a pre-firing distal position to staple the fabric between the first claw and the second claw in the fully closed configuration, with the firing set being configured to act from the distal position to a post-shot proximal position; and (d) a locking set configured to act from a locked configuration to an unlocked configuration in response to the action of the locking lever articulating the second claw of the partially closed configuration to the fully closed configuration, the set of locking is configured to remain locked in the locked configuration when the firing set is in the proximal post-firing position.
[17]
Apparatus according to claim 16, characterized in that the locking assembly comprises a locking block associated with the first claw or the second claw.
[18]
18. Apparatus according to claim 17, characterized in that the firing assembly comprises an actuation beam that defines a cut configured to be in contiguity with the lock block in the locked configuration.
[19]
19. Apparatus according to claim 18, characterized in that the locking assembly comprises a prestressing member configured to propel the actuation beam towards the locking block.
[20]
20. Apparatus, characterized in that the apparatus comprises: (a) a handle assembly, the handle assembly comprising: (i) a first arm, (ii) a second arm, the second arm being configured for coupling articulated to the first arm in a proximal pivot location, and (iii) a lock lever articulated coupled to the first arm in a pivot location; (b) an end actuator, the end actuator comprising:
(i) a first claw that extends distally from the first arm, (ii) a second claw that extends distally from the second arm, the second claw being configured to pierce in relation to the first claw between a open configuration, partially closed configuration and completely closed configuration, the lock lever being configured to engage the second arm or the second claw to pivot the second claw of the partially closed configuration towards the fully closed configuration, and (iii) a staple cartridge assembly comprising a cartridge body which houses a plurality of staples, the staple cartridge assembly being configured to mate with the first jaw or second jaw; (c) a firing set configured to act from a pre-firing proximal position towards a distal position to staple the tissue captured between the first claw and the second claw; and (d) locking set configured to transition from a locked setting to an unlocked setting, the locking set being configured to prevent distal actuation of the trigger set in a locked setting, the locking assembly comprises: (i) a first projection associated with the lock lever, (ii) a second projection associated with the trigger assembly, and (iii) an oscillating door associated with the staple cartridge assembly, the swinging door is configured to act between a non-engaging position and an engaging position in response to the first actuation of the projection on the swinging door, with the swinging door being configured to rotate between a first rotational position and the second rotational position in response rotation of the second ledge over the swing door, the first ledge being configured to act for the unlocked configuration only when the swing door is t both in the engaging position and in the first rotational position.

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同族专利:

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法律状态:
2021-12-07| B350| Update of information on the portal [chapter 15.35 patent gazette]|

优先权:

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申请号 | 申请日 | 专利标题

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US15/889,370|2018-02-06|

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US15/889,370|US10667818B2|2018-02-06|2018-02-06|Lockout assembly for linear surgical stapler|

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PCT/IB2019/050357|WO2019155301A1|2018-02-06|2019-01-16|Lockout assembly for linear surgical stapler|

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