Separation mechanism for surgical linear cutter

Abstract

An apparatus includes a first portion having a handle and a jaw, a second portion having a handle and a jaw, a latching member, and a proximal coupling assembly. The second portion is selectively pivotable about a proximal location relative to the first portion. The latching member drives the first and second jaws toward a fully closed configuration. The first and second jaws can clamp, cut, and staple tissue between the jaws. The proximal coupling selectively attaches the first portion with the second portion. The proximal coupling includes a pivot body and a coupling body. The pivot body is pivotally attached to the first portion at the proximal location. The coupling body associated with the second portion engages the pivot body at a location distal to the proximal location to selectively attach the first portion with the second portion.

Description

Background Art

[0001] In some surgical operations such as gastrointestinal anastomosis, it is possible to expect to clamp one or more tissue layers, cut through the clamped layer, and simultaneously drive the nail through the layer, so that the cut tissue layer is basically sealed together near the cut end of the tissue layer. A kind of such instrument that can be used in such operations is a linear surgical stapler, also referred to as a "linear cutter". A linear surgical stapler generally includes a first half (referred to as "cartridge half" or "reload half") and a second half (referred to as "anvil half"), the first half having a distal jaw configured to support a staple cartridge (or "reload"), and the second half having a distal jaw supporting anvil surfaces with staple forming features. The stapler also includes a movable clamping lever, which is configured to releasably clamp these stapler halves together. These stapler halves are configured to pivot relative to each other to receive and be clamped in the tissue between the two distal jaws when the clamping lever is closed. The firing assembly of stapler is configured to be actuated to cut clamped layer and drive nail to pass the tissue on either side of cutting line simultaneously.After firing stapler, clamping lever can be opened and stapler half separates to discharge the tissue of cutting off and stitching up.

[0002] While various surgical stapling instruments and associated components have been made and used, it is believed that no one prior to the inventors has made or used the invention described in the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0003] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the general description of the invention given above and the detailed description of the embodiments given below, serve to explain the principles of the invention.

[0004] Figure 1 A perspective view of an exemplary linear surgical stapler is shown showing the cartridge half and the anvil half of the stapler coupled together with the clamping levers of the cartridge half in a fully closed position;

[0005] Figure 2 Shown Figure 1 An exploded perspective view of a linear surgical stapler;

[0006] Figure 3 Shown Figure 1 A perspective view of a proximal portion of the cartridge half of a linear surgical stapler showing in cross section the cartridge channel and the clamping lever in an open position to reveal the interior features of the cartridge half;

[0007] Figure 4 Shown Figure 1 A top perspective view of a firing assembly of a linear surgical stapler;

[0008] Figure 5A Shown Figure 1 A side elevational view of a linear surgical stapler showing the stapler halves separated from one another;

[0009] Figure 5B Shown Figure 1 A side elevational view of a linear surgical stapler showing the proximal ends of the stapler halves coupled together;

[0010] Figure 5C Shown Figure 1 A side elevational view of a linear surgical stapler showing a distal pin of anvil half being received by a clamping lever jaw of cartridge half;

[0011] Figure 5D Shown Figure 1 A side elevational view of a linear surgical stapler showing the closure of the clamping levers fully clamping the stapler halves together;

[0012] Figure 5E Shown Figure 1 A side elevational view of a linear surgical stapler illustrating distal actuation of the firing assembly when the stapler halves are in a fully clamped state;

[0013] Figure 6 A perspective view of an alternative linear surgical stapler is shown showing the cartridge half and the anvil half of the stapler separated from one another with the clamping levers of the cartridge half in an open position;

[0014] Figure 7 Shown Figure 6 A perspective view of a linear surgical stapler showing the cartridge half and the anvil half of the stapler coupled together with the clamping levers of the cartridge half in an open position;

[0015] Figure 8 Shown Figure 6 A perspective view of a linear surgical stapler showing a distal pin of anvil half being received by a clamping lever jaw of cartridge half;

[0016] Figure 9 Shown Figure 6 A perspective view of the warehouse half;

[0017] Figure 10 Shown Figure 6 A perspective view of the anvil half;

[0018] Figure 11 Shown Figure 6 A top plan view of the anvil half;

[0019] Figure 12An elevational side view of an alternative linear surgical stapler is shown showing the cartridge half and the anvil half of the stapler separated from one another;

[0020] Figure 13 A perspective view of an alternative linear surgical stapler is shown showing the cartridge half and the anvil half of the stapler separated from one another with the clamping levers of the cartridge half in an open position;

[0021] Figure 14 Shown Figure 13 A perspective view of a linear surgical stapler showing the cartridge half and the anvil half of the stapler coupled together with the clamping levers of the cartridge half in an open position;

[0022] Figure 15 Shown Figure 13 A perspective view of the proximal portion of the cartridge half;

[0023] Figure 16 Shown Figure 13 Another perspective view of the proximal portion of the cartridge half;

[0024] Figure 17 Shown Figure 13 An elevational side view of the anvil portion;

[0025] Figure 18 Shown Figure 13 a perspective view of the anvil portion of the

[0026] Figure 19 A perspective view of an alternative linear surgical stapler is shown showing the cartridge half and the anvil half of the stapler separated from one another with the clamping levers of the cartridge half in an open position;

[0027] Figure 20 Shown Figure 19 A perspective view of a linear surgical stapler showing the cartridge half and the anvil half of the stapler coupled together with the clamping levers of the cartridge half in an open position;

[0028] Figure 21 Shown Figure 19 A perspective view of the proximal portion of the cartridge half;

[0029] Figure 22 Shown Figure 19 a perspective view of a proximal portion of an anvil half;

[0030] Figure 23 A perspective view of an alternative linear surgical stapler is shown showing the cartridge and anvil halves of the stapler separated from one another;

[0031] Figure 24 Shown Figure 23Another perspective view of a linear surgical stapler showing the cartridge half and the anvil half of the stapler separated from each other;

[0032] Figure 25 Shown Figure 23 A cross-sectional view of a linear surgical stapler showing the cartridge half and the anvil half of the stapler separated from each other;

[0033] Figure 26 Shown Figure 23 A cross-sectional view of a linear surgical stapler showing the cartridge half and the anvil half of the stapler coupled to each other;

[0034] Figure 27 A cross-sectional view of an alternative linear surgical stapler is shown showing the cartridge half and the anvil half of the stapler separated from one another;

[0035] Figure 28 Shown Figure 27 A cross-sectional view of a linear surgical stapler showing the cartridge half and the anvil half of the stapler coupled to each other;

[0036] Figure 29 Shown Figure 27 a perspective view of a proximal end of an anvil half; and

[0037] Figure 30 Shown Figure 27 A perspective view of the proximal end of the cartridge half.

[0038] The accompanying drawings are not intended to be limiting in any way, and it is contemplated that various embodiments of the invention may be carried out in a variety of other ways, including those not necessarily shown in the drawings. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate several aspects of the invention and, together with the description, serve to explain the principles of the invention; it should be understood, however, that the invention is not limited to the precise arrangements shown. DETAILED DESCRIPTION

[0039] The following description of certain examples of the present invention should not be used to limit the scope of the present invention. Based on the following description shown by way of example, other examples, features, aspects, embodiments and advantages of the present invention will be apparent to those skilled in the art, and a best mode is contemplated for implementing the present invention. As will be appreciated, the present invention can have other different and obvious aspects, all of which do not depart from the present invention. Therefore, the drawings and description should be considered to be illustrative and non-restrictive in nature.

[0040] For clarity of disclosure, the terms "proximal" and "distal" are defined herein relative to a surgeon or other operator holding a surgical instrument having a distal surgical end effector. The term "proximal" refers to a position where an element is positioned closer to the surgeon, and the term "distal" refers to a position where an element is positioned closer to the surgical end effector of the surgical instrument and further away from the surgeon. In addition, to the extent that spatial terms such as "upper," "lower," "vertical," "horizontal," and the like are used herein with reference to the accompanying drawings, it should be understood that such terms are used for exemplary descriptive purposes only and are not intended to be limiting or absolute. In this regard, it should be understood that surgical instruments such as those disclosed herein may be used in a variety of orientations and positions that are not limited to those shown and described herein.

[0041] As used herein, the terms "about" and "approximately" for any numerical values ​​or ranges represent a suitable dimensional tolerance that allows the part or collection of components to function for its intended purpose as described herein.

[0042] I. Exemplary Linear Surgical Stapler

[0043] A. Overview of Linear Surgical Staplers

[0044] Figures 1 to 2 An exemplary linear surgical stapler (10) (also referred to as a "linear cutter") suitable for use in a variety of cutting and stapling procedures, such as gastrointestinal anastomosis, is shown. The linear surgical stapler (10) includes a cartridge half (12) (also referred to as a "reloading half") and an anvil half (14) configured to be releasably coupled together to clamp tissue therebetween for simultaneous cutting and stapling of the clamped tissue.

[0045] The magazine half (12) includes an elongated magazine channel (16) having a proximal frame portion (18) and a distal jaw portion (20). The proximal frame portion (18) slidably holds the firing assembly (100) and includes a pair of laterally opposed upright side flanges (22). Each side flange (22) includes a vertical slot (24) arranged at its distal end and a tapered recess (26) arranged at its proximal end. An outwardly projecting rigid rib (28) extends longitudinally between the distal slot (24) and the proximal recess (26) of each side flange (22) and is configured to provide enhanced rigidity to the side flange (22). An outwardly expanding upper section (30) defines the upper edge of the proximal portion of each side flange (22) and is configured to facilitate the magazine half (12) to receive the anvil half (14). Each side flange (22) also includes an elongated firing slot (32) that extends longitudinally along the underside of the side flange (22) between the proximal notch (26) and the distal slot (24). The elongated firing slot (32) is configured to guide the firing assembly (100) between a proximal position and a distal position. Figure 4 The firing assembly (100) is described in greater detail. The distal jaw portion (20) of the cartridge channel (16) is configured to receive (or "reload") a staple cartridge (130).

[0046] The cartridge half (12) further includes a clamping lever (40) (also referred to as a "latch lever") pivotally coupled to the cartridge channel (16) by a clamping lever pivot pin (42), the clamping lever pivot pin being arranged to be generally aligned with the distal slot (24) of the cartridge channel side flange (22). The clamping lever (40) includes an elongated lever arm (44) having a free proximal end (46) and a distal end pivotally coupled to a lower portion of the cartridge channel (16) by the pivot pin (42). A pair of opposing jaws (48) extend distally from the distal end of the lever arm (44) along the cartridge channel side flange (22). Each jaw (48) includes a curved slot (50) having a closed proximal end and an open distal end, the open distal end being configured to receive a latch pin (68) of the anvil half (14), as described below.

[0047] The clamping lever (40) is operable to pivot relative to the cartridge channel (16) between an open position in which the proximal end (46) of the lever arm (44) is spaced from the cartridge channel frame portion (18) and a closed position in which the proximal end (46) faces the cartridge channel frame portion (18). Actuation of the clamping lever (40) from the open position to the closed position serves to capture the opposing side ends of the latch pin (68) within the clamping lever jaw slot (50) and thereby clamp the anvil half (14) against the cartridge half (12), as described below in conjunction with Figures 5C to 5D As shown and described. In this regard, the curvature of each jaw slot (50) defines respective upper and lower cam surfaces that are configured to engage respective side ends of the latch pin (68) and pull it toward the bin channel (16) when the clamping lever (40) is pivotally closed. A resilient member, shown in the form of a leaf spring (52), biases the lever arm (44) toward the open position. Thus, when the clamping lever (40) is initially advanced from the closed position toward the open position, the leaf spring (52) facilitates disengagement of the clamping lever jaws (48) from the anvil half latch pin (68). As shown Figure 2 and Figure 3 As best shown, the clamp lever (40) further includes a latch member (54) disposed at the proximal end (46) of the lever arm (44). The clamp lever latch member (54) is configured to resiliently and releasably engage the proximal end of the cartridge channel frame portion (18) and thereby releasably retain the clamp lever (40) in a closed position, for example, when the stapler (10) is fired.

[0048] The anvil half (14) of the linear surgical stapler (10) includes an elongated anvil channel (60) having a proximal frame portion (62) and a distal jaw portion (64). The proximal frame portion (62) includes a pair of laterally opposed upright side flanges (66) that are configured to be received between the bin channel side flanges (22) when the anvil half (14) is coupled to the bin half (12). A distal latch projection in the form of a latch pin (68) extends laterally through the distal end of the anvil channel side flange (66), and a proximal pivot projection in the form of a proximal pin (70) extends laterally through the proximal end of the anvil channel side flange (66). The anvil pins (68, 70) are configured to facilitate coupling of the anvil half (14) to the bin half (12), as described below.

[0049] The distal jaw portion (64) of the anvil half (14) supports an anvil plate (72), which defines an anvil surface having a plurality of nail forming recesses, and the plurality of nail forming recesses are configured to deform the legs of the nails ejected by the nail magazine (130) when the stapler (10) is fired, for example as described in more detail below. In some versions, the anvil surface can be formed integrally with the distal jaw portion (64). The distal jaw portion (64) of the anvil half (14) also supports a tapered distal end member (76). In some versions, according to the teachings of U.S. Patent Publication No. 2020 / 0046351, entitled "Decoupling Mechanism for Linear Surgical Stapler" published on February 13, 2020, the distal end member (76) can be selectively extended relative to the distal jaw portion (64), the disclosure of which is incorporated herein by reference.

[0050] like Figure 2 As shown, the linear surgical stapler (10) also includes a plurality of covers (56, 78), which cover the selected parts of the stapler (10) and enhance the operator's effective grip and manipulation of the stapler (10) during use. In this example, the clamping lever cover (56) is attached to and covers the outward-facing side of the clamping lever (40) so that the clamping lever cover (56) is configured to pivot relative to the bin channel (16) together with the clamping lever (40). In addition, the anvil cover (78) is attached to and covers the outward-facing side of the anvil channel (60). In some versions, according to the teachings of U.S. Patent Publication No. 2020 / 0046353, entitled "Clamping Assembly for Linear Surgical Stapler" published on February 13, 2020, the anvil cover (78) can be connected to the anvil channel (60), and the disclosure of the patent publication is incorporated herein by reference. It will be appreciated that, in other versions, cover (56, 78) may be coupled to clamping lever (40) and anvil channel (60) in various other suitable manners apparent to those skilled in the art.

[0051] like Figure 3As best shown, the proximal end of the magazine half (12) includes a retaining assembly (80) that is configured to releasably retain the anvil half (14) and portions of the firing assembly (100). The retaining assembly (80) of this example includes an anvil latch member (82) and a stop member (84), both of which are rotatably coupled to the proximal end of the magazine channel (16) via a laterally extending pin (86) disposed proximal to the firing slot (32). A torsion spring (not shown) is configured to resiliently bias the anvil latch member (82) and the stop member in opposite rotational directions about a transverse axis defined by the pin (86).

[0052] The anvil latch member (82) includes an upper finger-shaped member (88) that is configured to releasably capture the proximal anvil pin (70) when the proximal anvil pin (70) is guided into the proximal conical recess (26) of the magazine channel (16), thereby coupling the proximal ends of the stapler halves (12, 14). The lower end of the anvil latch member (82) defines a release button (90) that is configured to be depressed by the operator when the clamping lever (40) is in the open position to release the proximal pin (70) from the latch finger-shaped member (88), thereby allowing the proximal ends of the stapler halves (12, 14) to separate. The stop member (84) includes a distal finger-shaped member (88) that is configured to releasably capture the proximal end of the slide (102) of the firing assembly (100) when the firing assembly (100) is in the proximal home position, as shown in FIG. Figure 3 As shown. The stop member (84) also includes a proximal hook (94) that is configured to releasably capture the upper end of the clamping lever latch member (54) when the slider (102) is located distally of its proximal home position, thereby preventing the clamping lever latch member (54) from being actuated and the clamping lever (40) from opening during the firing of the stapler (10). When the firing assembly (100) is in its proximal home position (i.e., before or after the stapler (10) is fired), the proximal hook (94) of the stop member (84) allows the clamping lever latch member (54) to rotatably disengage the proximal frame portion (18) of the bin channel (16) in response to being actuated by the operator. Therefore, the clamping lever (40) can then be opened. The retaining assembly (80) and associated components of the cartridge half (12) may be constructed and operated in accordance with at least some of the teachings of U.S. Patent Publication No. 2020 / 0046350, entitled “Firing System for Linear Surgical Stapler,” published on February 13, 2020, the disclosure of which is incorporated herein by reference.

[0053] like Figure 4As best shown, the firing assembly (100) of the cartridge half (12) includes a slide (102), a pair of actuators (104, 106) (or "firing knobs") pivotally coupled to the slide (102), and a plurality of elongated beams (108, 112) extending distally from the slide (102). A pair of side beams (108) are coupled to the distal end of the slide (102) at their proximal ends and terminate distally in a pair of cam ramps (110). The cam ramps (110) are configured to engage the underside of a staple driver contained within the staple cartridge (130) and actuate the staple driver upward, thereby driving (or "firing") staples from the cartridge (130) into tissue clamped between the staple cartridge (130) and the anvil plate (72). The central beam (112) is coupled to the side beams (108) via a bridging member (114) (or "knife block") that is distally spaced from the slider (102). The central beam (112) terminates distally in a distally angled knife member (116) having a distal cutting edge (118) configured to cut tissue clamped between the distal portions of the stapler halves (12, 14). The distal portion of the central beam (112) further includes an upwardly projecting stop element (120) proximal to the knife member (116) and a distally facing locking protrusion (122) proximal to the stop element (120).

[0054] Each actuator (104,106) of the firing assembly (100) is configured to rotate between a deployed position and a retracted position relative to the slider (102) so that only one actuator (104,106) can be deployed at a time, for example as described in more detail in U.S. Patent Publication No. 2020 / 0046350, which is incorporated by reference as above. In the deployed position, the actuator (104,106) can be driven distally by the operator to actuate the firing assembly (100) distally through the stapler (10), thereby simultaneously cutting and suturing the tissue clamped between the stapler halves (12,14).

[0055] B. Exemplary Use of a Linear Surgical Stapler

[0056] Figures 5A to 5E An exemplary coupling of stapler halves (12, 14) and subsequent firing of the assembled stapler (10) during a surgical procedure is shown. Figure 5A As shown, the clamping lever (40) of the magazine half (12) is set in the open position so that the jaw slot (50) is aligned with the vertical slot (24) of the magazine channel side flange (22). In addition, the firing assembly (100) is retained in its proximal original position by the stop member (84) of the retaining assembly (80), as described above. Figure 3At this stage, the tissue portion to be stapled and cut (not shown) can be positioned above the top of the staple cartridge (130) disposed in the distal jaw portion (20) of the cartridge half (12). Alternatively, the tissue can be positioned above the staple cartridge (130) after the proximal ends of the stapler halves (12, 14) described below are coupled.

[0057] like Figures 5A to 5B As shown, the proximal ends of the stapler halves (12, 14) are aligned with each other, and the proximal anvil pin (70) is guided downwardly into the proximal tapered recess (26) of the cartridge channel (16) to engage the upper finger (88) of the anvil latch member (82). This engagement forces the anvil latch member (82) to elastically rotate clockwise, thereby enabling the upper finger (88) of the anvil latch member (82) to capture the anvil pin (70) and thereby releasably couple the proximal ends of the stapler halves (12, 14) together, as shown. Figure 5B As shown. Figure 5C As shown, and with the clamping lever (40) held in the open position, the anvil half (14) is rotated about the proximal anvil pin (70) toward the cartridge half (12) so that the distal latch pin (68) of the anvil half (14) is received in the vertical slot (24) of the cartridge channel side flange (22) and the jaw slot (50) of the clamping lever (40). The distal jaw portions (20, 64) of the stapler half (12, 14) are now in a partially approximated state so that final adjustments can be made to the tissue received therebetween before clamping.

[0058] like Figure 5D As shown, the clamping lever (40) is closed to pull the anvil latch pin (68) against the closed proximal end of the jaw slot (50) and thereby fully clamp the anvil half (14) against the magazine half (12), wherein tissue (not shown) is clamped between the staple magazine (130) and the anvil plate (72). The tissue gap column of the staple magazine (130) defines a small lateral gap between the staple magazine (130) and the anvil plate (72), thereby accommodating the tissue therebetween with a predetermined degree of tissue compression. The tissue gap column is provided at the distal end of the staple magazine (130) and is configured to be able to be clamped when the stapler (10) is in the Figure 5D The fully clamped condition is shown contacting the distal end of the anvil plate (72).

[0059] like Figure 5E As shown, upon reaching the fully clamped state, the stapler (10) can be fired by driving the deployed actuators (104, 106) of the firing assembly (100) distally along the proximal frame portion (18) of the cartridge half (12). Figure 4As described, this action causes the elongated beams (108,112) of the firing assembly (100) to translate distally through the corresponding channels formed in the staple cartridge (130), and thereby the staples are fired into the clamped tissue via the cam ramp (110) and the staple driver (180), while the clamped tissue is cut by the knife member (116). After completing the firing stroke, the firing assembly (100) returns to its proximal home position via the actuator (104,106). The clamping lever latch member (54) can then be depressed to release the proximal end of the clamping lever (40) from the cartridge channel (16), thereby allowing the clamping lever (40) to reopen. The release button (90) of the holding assembly (80) can then be depressed to release the anvil half portion (14) from the cartridge half portion (12), so that the stapler half portions (12,14) can be separated from each other, thereby releasing the newly sutured and cut tissue. It should be understood that in some versions, the stapler (10) may include features that facilitate disengagement of the stapler halves (12, 14) similar to those disclosed in U.S. Patent Publication No. 2020 / 0046351, which is incorporated by reference above.

[0060] II. Exemplary Linear Surgical Stapler with Alternative Detachment Mechanism

[0061] As mentioned above, and as Figures 5A to 5B As shown in FIG. 1 , the proximal anvil pin (70) of the anvil half (14) is configured to be received within the proximal tapered recess (26) of the cartridge channel (16) to selectively pivotally couple the anvil half (14) relative to the cartridge half (12) about a transverse axis defined by the proximal anvil pin (70). Figures 5B to 5C As shown, this pivotal connection between the anvil half (14) and the magazine half (12) allows the operator to rotate the anvil half (14) about the proximal anvil pin (70) toward the magazine half (12) so that the distal latch pin (68) of the anvil half (14) is received in the vertical slot (24) of the magazine channel side flange (22) and the jaw slot (50) of the clamping lever (40).

[0062] As also described above, the anvil latch member (82) of the retaining assembly (80) is configured to capture the anvil pin (70) within the tapered recess (26) so that after the anvil pin (70) is received within the recess (26), the operator can focus on rotating the anvil half (14) toward the cartridge half (12). Figure 5C The anvil pin (70) can be positioned as shown without having to worry about accidentally separating from the tapered recess (26) and thereby inadvertently disengaging the anvil half (14) from the cartridge half (14).

[0063] However, in some circumstances, it may not be possible or desirable to have the cartridge half (12) have a retaining assembly (80) configured to selectively capture the anvil pin (70) within the tapered recess (26) to temporarily secure the pivotal connection of the stapler (10) about the axis defined by the anvil pin (70). In the event that the stapler (10) does not have an anvil latch member (82) as described above, when the operator attempts to Figures 5B to 5C When the stapler (10) is properly manipulated between the positions shown, the temporary pivotal connection of the cartridge half (12) to the anvil half (14) via the anvil pin (70) and the tapered recess (26) may be susceptible to accidental disengagement. For example, when the stapler (10) is in Figure 5B In the position shown, if the operator were to attempt to properly manipulate the cartridge half (12) without holding the anvil half (14), the anvil pin (70) could fall out of the confines of the tapered recess (26), thereby inadvertently disengaging the cartridge half (12) from the anvil half (14).

[0064] Therefore, it may be desirable to have the stapler (10) have a temporary proximal connection between the anvil half (14) and the magazine half (12) that also ensures a secure proximal pivot relationship between the halves (12, 14) while also allowing intuitive and easy alignment, assembly and disassembly of the halves (12, 14).

[0065] A. The first linear surgical stapler with an elastic latch release mechanism

[0066] Figures 6 to 11 An exemplary linear surgical stapler (210) that can be used to replace the linear surgical stapler (10) described above is shown. As will be described in more detail below, the linear surgical stapler (210) includes a latch proximal coupling assembly (270) that allows for easy coupling and disengagement of the cartridge half (212) and the anvil half (214) while ensuring a secure proximal pivotal relationship between the halves (212, 214).

[0067] The linear surgical stapler (210) can be substantially similar to the linear surgical stapler (10) described above, but with the differences detailed below. Thus, the linear surgical stapler (212) includes a cartridge half (212) and an anvil half (214) that are substantially similar to the cartridge half (12) and anvil half (14) described above, but with the differences detailed below.

[0068] The magazine half (212) includes a slender magazine channel (216), a proximal frame (218) having upright side flanges (222), a firing assembly (230), and a clamping lever (240) having a slender arm (244) and a pair of opposing jaws (248); they are substantially similar to the above-mentioned slender magazine channel (16), proximal frame (18), upright side flanges (22), firing assembly (100), clamping lever (40), slender arm (44) and opposing jaws (48), respectively, but with differences detailed below.

[0069] The anvil half (214) includes an elongated anvil channel (260), a proximal frame portion (262), a distal jaw portion (264), a latch pin (268) and a cover (278); they are substantially similar to the above-mentioned elongated anvil channel (60), proximal frame portion (62), distal jaw portion (64), latch pin (68) and cover (78), respectively, but have differences as detailed below.

[0070] While the magazine half (12) and the anvil half (14) include tapered recesses (26) and proximal pins (70), respectively, to provide a temporary pivotal connection between the magazine half (12) and the anvil half (14), the linear surgical stapler (210) includes a latching proximal connection assembly (270) that allows for a temporary connection between the magazine half (212) and the anvil half (214) while also ensuring a secure proximal pivotal relationship between the halves (212, 214).

[0071] The latch proximal coupling assembly (270) includes a pivot bin section (272) and an anvil coupling section (280). Figure 9 As best shown, the pivot bay section (272) includes a pivot pin (274) and a pivot housing (276). The pivot housing (276) is pivotally coupled to the proximal section of the proximal frame portion (218) via the pivot pin (274) coupled to the side flange (222).

[0072] Unlike the proximal pin (70) described above, the pivot pin (274) is configured to remain pivotally coupled to the side flange (222) such that, during exemplary use, the pivot pin (274) and the pivot housing (276) may not be separated from the proximal frame portion (218). In other words, the pivot housing (276) is attached to the side flange (222) such that the pivot housing (276) can pivot relative to the proximal frame (218) about an axis defined by the pivot pin (274), but the pivot housing (276) will not otherwise be detached or separated from the proximal frame portion (218) during exemplary use. For example, if an operator holds the cartridge half (212) by merely gripping the pivot housing (276), the pivot housing (276) and the proximal frame portion (218) will remain coupled via the interaction between the pivot pin (274) and the side flange (222).

[0073] The pivot housing (276) defines a hollow interior (290); while the sidewalls of the pivot housing (276) define an open slot (292) and a latch aperture (294) present distally. The hollow interior (290) is sized to selectively accommodate the proximal segment of the proximal frame portion (262) and the anvil coupling segment (280). As will be described in greater detail below, the pivot housing (276) is configured to selectively couple to the anvil half (214) via the anvil coupling segment (280) to establish a secure pivotable connection between the anvil half (214) and the proximal frame portion (218).

[0074] like Figures 10 and 11 As best shown in FIG, anvil coupling section (280) includes a pair of stabilizing blocks (288) extending proximally from respective sides of cover (278) and a pair of resilient latches (282) extending proximally from respective stabilizing blocks (288). According to the description herein, when anvil coupling section (280) is attached to pivot cartridge section (272), stabilizing blocks (288) are sized to fit within the confines of open slots (292) present on respective distal sides of pivot cartridge section (272).

[0075] The resilient latches (282) each include a leg (284) extending proximally from a respective stabilizing block (288) and terminating in a latch head (286). The latch head (286) includes an inclined cam surface and an engaging shoulder. The latch head (286) is sized to fit within the respective latch apertures (294) when the anvil coupling section (280) is attached to the pivot bin section (272). As described herein, the legs (284) are sufficiently resilient to flex to accommodate the coupling of the anvil coupling section (280) to the pivot bin section (272).

[0076] Figures 6 to 8An exemplary assembly of anvil half (214) and cartridge half (212) via proximal coupling assembly (270) is shown. First, as Figure 6 As shown, the operator can align the open end of the pivot housing (276) with the proximal end of the anvil coupling section (280). Figures 6 and 7 As shown therein, an operator may insert anvil coupling section (280) into the hollow interior (290) of pivot housing (276).

[0077] The legs (284) are sufficiently resilient to flex in response to the cam surface of the latch head (286) engaging the inner surface of the pivot housing (276) while the operator inserts the anvil coupling section (280) into the hollow interior (290) of the pivot housing (276). Figure 7 In the position shown, the legs (284) are sufficiently resilient to return to the relaxed position when the latch heads (286) are aligned with the latch apertures (284). When the legs (284) return to the relaxed position, the latch heads (286) can be received within their respective latch apertures (284). Figure 7 At the moment shown, anvil coupling section (280) is fully inserted into hollow interior (290).

[0078] Once the latch head (286) is received in the latch aperture (284), the engaging shoulder of the latch head (286) can inhibit distal longitudinal movement of the anvil half (214) relative to the pivot housing (276). Additionally, the engagement between the stabilizing block (288) and its respective distally present open slot (292) can be sufficient to prevent lateral or rotational movement between the anvil half (214) and the pivot housing (276). Thus, once properly inserted into the pivot housing (276), the anvil half (214) can be fully attached to the pivot housing (276) such that the anvil half (214) is also pivotally coupled to the proximal frame (218) of the cartridge half (212).

[0079] Because the pivot housing (276) has a secure pivotal connection with the proximal frame portion (218), as described above, the anvil half (214) also has a secure pivotal connection when coupled to the pivot housing (276) via the anvil coupling section (280). Figures 7 and 8 The stapler (210) is properly manipulated between the positions shown without inadvertently disengaging the halves (212, 214) at the proximal pivot coupling.

[0080] The operator can then utilize the stapler (210) as described herein. When the operator desires to disengage the halves (212, 214), the operator can pinch the stabilizing block (288) inwardly, or otherwise actuate the latch head (286) into its respective latch aperture (284), such that the engaging shoulder no longer engages the portion of the pivot housing (276) that defines the latch aperture (284). Simultaneously, the operator can pull the anvil half (214) away from the pivot housing (276) until the anvil coupling section (280) is completely removed from the hollow interior (290) of the pivot housing (276).

[0081] While in the present example, pivot pin (274) and side flange (222) pivotally couple proximal frame portion (218) and pivot housing (276), any other suitable mechanism may be used to pivotally couple pivot housing (276) to proximal frame portion (218), as will be apparent to those skilled in the art having reference to the teachings herein. Figure 12 As shown, the pivot housing (276) can be pivotally coupled to the proximal frame portion (218) via a movable hinge (304) to form a linear stapler (300) having a proximal coupling assembly (302) that is substantially similar to the linear surgical stapler (210) and the proximal coupling assembly (270), except that a movable hinge (304) is used instead of the pivot pin (274).

[0082] While in the present example, pivot housing (276) is coupled to cartridge half (212), this is merely optional as pivot housing (276) may be coupled to anvil half (214) and anvil coupling section (280) may be coupled to cartridge half (212).

[0083] B. Second linear surgical stapler with elastic latch separation mechanism

[0084] Figures 13 to 18 An exemplary linear surgical stapler (310) that can be used to replace the linear surgical stapler (10) described above is shown. As will be described in more detail below, the linear surgical stapler (310) includes a proximal coupling assembly (370) that allows for easy coupling and disengagement of the cartridge half (312) and the anvil half (314) while ensuring a secure proximal pivotal relationship between the halves (312, 314).

[0085] The linear surgical stapler (310) can be substantially similar to the linear surgical stapler (10) described above, but with the differences detailed below. Thus, the linear surgical stapler (312) includes a cartridge half (312) and an anvil half (314) that are substantially similar to the cartridge half (12) and anvil half (14) described above, but with the differences detailed below.

[0086] The magazine half (312) includes a slender magazine channel (316), a proximal frame (318) having upright side flanges (322), a firing assembly (330), and a clamping lever (340) having a slender arm (344) and a pair of opposing jaws (348); they are substantially similar to the above-mentioned slender magazine channel (16), proximal frame (18), upright side flanges (22), firing assembly (100), clamping lever (40), slender arm (44) and opposing jaws (48), respectively, but with differences detailed below.

[0087] The anvil half (314) includes an elongated anvil channel (360), a proximal frame portion (362), a distal jaw portion (364), a latch pin (368) and a cover (378); they are substantially similar to the above-mentioned elongated anvil channel (60), proximal frame portion (62), distal jaw portion (64), latch pin (68) and cover (78), respectively, but have differences as detailed below.

[0088] Although the magazine half (12) and the anvil half (14) include a tapered recess (26) and a proximal pin (70), respectively, to provide a temporary pivotal connection between the magazine half (12) and the anvil half (14); the linear surgical stapler (310) includes a proximal connection assembly (370) that allows a temporary connection between the magazine half (312) and the anvil half (314) while also ensuring a secure proximal pivotal relationship between the halves (312, 314).

[0089] The latch proximal coupling assembly (370) includes a pivot bin section (372) and an anvil coupling section (380). Figures 15 and 16 As best shown, the pivot bay section (372) includes a pivot pin (374) and a pivot housing (376). The pivot housing (376) is pivotally coupled to the proximal section of the proximal frame portion (318) via the pivot pin (374) coupled to the side flange (322).

[0090] Unlike the proximal pin (70) described above, the pivot pin (374) is configured to remain pivotally coupled to the side flange (322) such that, during exemplary use, the pivot pin (374) and the pivot housing (376) may not separate from the proximal frame portion (318). In other words, the pivot housing (376) is attached to the side flange (322) such that the pivot housing (376) can pivot relative to the proximal frame portion (318) about an axis defined by the pivot pin (374), but the pivot housing (376) will not otherwise detach or separate from the proximal frame portion (318) during exemplary use. For example, if an operator holds the cartridge half (312) by merely grasping the pivot housing (376), the pivot housing (376) and the proximal frame portion (318) will remain coupled via the interaction between the pivot pin (374) and the side flange (322).

[0091] The pivot housing (376) defines a hollow interior (390); the top wall of the pivot housing (376) defines a distally located open slot (392) and a latch aperture (394); and the side walls of the pivot housing (376) define an additional distally located open slot (398). The hollow interior (390) is sized to selectively accommodate the proximal segment of the proximal frame portion (362) and the anvil coupling segment (380). As will be described in greater detail below, the pivot housing (376) is configured to selectively couple to the anvil half (314) via the anvil coupling segment (380) to establish a secure, pivotable connection between the anvil half (314) and the proximal frame portion (318).

[0092] like Figures 17 and 18 As best shown, the anvil coupling section (380) includes a stabilizing block (388) on top of and extending proximally from the cover (378) and a resilient latch (382) extending proximally from the stabilizing block (388). Additionally, the anvil coupling section (380) also includes two additional stabilizing blocks (396) extending proximally from the sides of the cover (378). As described herein, when the anvil coupling section (380) is attached to the pivot bin section (372), the stabilizing blocks (388, 396) are sized to fit within the confines of the open slot (392) and the additional distally present open slot (398), respectively, of the pivot bin section (372).

[0093] The resilient latch (382) includes a leg (384) extending proximally from the stabilizing block (388) and terminating in a latch head (386). The latch head (386) includes an inclined cam surface and an engaging shoulder. The latch head (386) is sized to fit within the latch aperture (394) when the anvil coupling section (380) is attached to the pivot bin section (372). As described herein, the leg (384) is sufficiently resilient to flex to accommodate the coupling of the anvil coupling section (380) to the pivot bin section (372).

[0094] Figures 13 and 14 An exemplary assembly of anvil half (314) and cartridge half (312) via proximal coupling assembly (370) is shown. First, as Figure 13 As shown, the operator can align the open end of the pivot housing (376) with the proximal end of the anvil coupling section (380). Figures 13 and 14 As shown therein, an operator may insert anvil coupling section (380) into hollow interior (390) of pivot housing (376).

[0095] The legs (384) are sufficiently resilient to flex in response to the cam surface of the latch head (386) engaging the inner surface of the pivot housing (376) while the operator inserts the anvil coupling section (380) into the hollow interior (390) of the pivot housing (376). Figure 14 In the position shown, the legs (384) are sufficiently resilient to return to the relaxed position when the latch head (386) is aligned with the latch aperture (384). When the legs (384) return to the relaxed position, the latch head (386) can be received within the latch aperture (384). Figure 14 At the moment shown, anvil coupling section (380) is fully inserted into hollow interior (390).

[0096] Once the latch head (386) is received in the latch aperture (384), the engaging shoulder of the latch head (386) can inhibit distal longitudinal movement of the anvil half-section (314) relative to the pivot housing (376). Additionally, the engagement between the stabilizing blocks (388, 396) and the distally present open slots (392, 398) can be sufficient to prevent lateral or rotational movement between the anvil half-section (314) and the pivot housing (376). Thus, once properly inserted into the pivot housing (376), the anvil half-section (314) can be sufficiently attached to the pivot housing (376) such that the anvil half-section (314) is also pivotally coupled to the proximal frame (318) of the cartridge half-section (312).

[0097] Because the pivot housing (376) has a secure pivotal connection to the proximal frame portion (318), as described above, the anvil half-section (314) also has a secure pivotal connection when coupled to the pivot housing (376) via the anvil coupling section (380). Thus, due to this secure pivotal connection, an operator can attempt to properly manipulate the stapler (310) as described herein without inadvertently disengaging the half-sections (312, 314) at the proximal pivotal connection.

[0098] The operator can then utilize the stapler (310) as described herein. When the operator desires to disengage the halves (312, 314), the operator can pinch the latch head (386) or otherwise actuate the latch head into the latch aperture (384) so ​​that the engaging shoulder no longer engages the portion of the pivot housing (376) that defines the latch aperture (384). Simultaneously, the operator can pull the anvil half (314) away from the pivot housing (376) until the anvil coupling section (380) is completely removed from the hollow interior (390) of the pivot housing (376).

[0099] Although in the present example, the pivot pin (374) and side flange (322) pivotally couple the proximal frame portion (318) and the pivot housing (376), as will be apparent to one skilled in the art having reference to the teachings herein, any other suitable mechanism may be used to pivotally couple the pivot housing (376) to the proximal frame portion (318), such as a living hinge substantially similar to the living hinge (304) described above.

[0100] While in the present example, pivot housing (376) is coupled to cartridge half (312), this is merely optional as pivot housing (376) may be coupled to anvil half (314) and anvil coupling section (380) may be coupled to cartridge half (312).

[0101] C. The first linear surgical stapler with a magnetic separation mechanism

[0102] Figures 19 to 22 An exemplary linear surgical stapler (410) that can be used to replace the linear surgical stapler (10) described above is shown. As will be described in more detail below, the linear surgical stapler (410) includes a proximal coupling assembly (470) that allows for easy coupling and disengagement of the cartridge half (412) and the anvil half (414) while ensuring a secure proximal pivotal relationship between the halves (412, 414).

[0103] The linear surgical stapler (410) can be substantially similar to the linear surgical stapler (10) described above, but with the differences detailed below. Thus, the linear surgical stapler (412) includes a cartridge half (412) and an anvil half (414) that are substantially similar to the cartridge half (12) and anvil half (14) described above, but with the differences detailed below.

[0104] The magazine half (412) includes a slender magazine channel (416), a proximal frame (418) having upstanding side flanges (422), a firing assembly (430), and a clamping lever (440) having a slender arm (444) and a pair of opposing jaws (448); they are substantially similar to the above-mentioned slender magazine channel (16), proximal frame (18), upstanding side flanges (22), firing assembly (100), clamping lever (40), slender arm (44) and opposing jaws (48), respectively, but with differences detailed below.

[0105] The anvil half (414) includes an elongated anvil channel (460), a proximal frame portion (not shown), a distal jaw portion (464), a latch pin (468), and a cover (478); they are substantially similar to the elongated anvil channel (60), proximal frame portion (62), distal jaw portion (64), latch pin (68), and cover (78) described above, respectively, but with differences as detailed below. Although not shown, it should be understood that the proximal frame portion (not shown) is housed within the cover (478), similar to how the proximal frame portion (62) is housed within the cover (78) described above.

[0106] Although the magazine half (12) and the anvil half (14) include a tapered recess (26) and a proximal pin (70), respectively, to provide a temporary pivotal connection between the magazine half (12) and the anvil half (14); the linear surgical stapler (410) includes a proximal connection assembly (470) that allows a temporary connection between the magazine half (412) and the anvil half (414) while also ensuring a secure proximal pivotal relationship between the halves (412, 414).

[0107] The latch proximal coupling assembly (470) includes a pivot bin section (472) and an anvil coupling section (480). Figure 21 As best shown, the pivot bay section (472) includes a pivot pin (474) and a pivot housing (476). The pivot housing (476) is pivotally coupled to the proximal section of the proximal frame portion (418) via the pivot pin (474) coupled to the side flange (422).

[0108] Unlike the proximal pin (70) described above, the pivot pin (474) is configured to remain pivotally coupled to the side flange (422) such that, during exemplary use, the pivot pin (474) and the pivot housing (476) may not separate from the proximal frame portion (418). In other words, the pivot housing (476) is attached to the side flange (422) such that the pivot housing (476) can pivot relative to the proximal frame portion (418) about an axis defined by the pivot pin (474), but the pivot housing (476) will not otherwise detach or separate from the proximal frame portion (418) during exemplary use. For example, if an operator holds the cartridge half (412) by merely gripping the pivot housing (476), the pivot housing (476) and the proximal frame portion (418) will remain coupled via the interaction between the pivot pin (474) and the side flange (422).

[0109] The pivot housing (476) defines a magnetic recess (490) and a stabilizing block recess (492). The magnetic recess (490) has a magnetic surface (494). The recesses (490, 492) are sized to selectively accommodate the anvil coupling section (480). As will be described in greater detail below, the pivot housing (476) is configured to selectively couple to the anvil half (414) via the anvil coupling section (480) to establish a secure pivotable connection between the anvil half (414) and the proximal frame portion (418).

[0110] like Figure 22 As best shown, the anvil coupling section (480) includes a stabilizing block (488) and a magnetic body (482), both of which extend proximally from the cover (478). As described herein, when the anvil coupling section (480) is attached to the pivot bin section (472), the stabilizing block (488) is sized to fit within the confines of a stabilizing block recess (492) of the pivot bin section (472). The stabilizing block (388) fits within the recess (492) to substantially inhibit lateral or rotational movement of the block (388) relative to the recess (492).

[0111] Similarly, according to the description herein, when the anvil coupling section (480) is attached to the pivot bin section (472), the magnetic body (482) is sized to fit within the confines of the magnetic recess (490). According to the description herein, when the magnetic body (482) is housed within the magnetic recess (490), the magnetic body (482) and the magnetic surface (494) are magnetically attracted to each other with sufficient magnetic force to inhibit distal longitudinal movement of the anvil half (414) relative to the pivot housing (476). Any suitable magnetic relationship between the body (482) and the surface (494) can be used, as will be apparent to those skilled in the art having reference to the teachings herein.

[0112] Figures 19 to 20 An exemplary assembly of anvil half (414) and cartridge half (412) via proximal coupling assembly (470) is shown. First, as Figure 19 As shown, the operator can align the open end of the pivot housing (476) with the proximal end of the anvil coupling section (480). Figures 19 to 20 As shown therebetween, an operator may insert the magnetic body (482) and the stabilizing block (482) into corresponding recesses (490, 492) of the pivot housing (476).

[0113] Once the magnetic body (482) is received in the recess (490), the magnetic attraction between the body (482) and the recess (490) can inhibit the distal longitudinal movement of the anvil half (414) relative to the pivot housing (476). In addition, the engagement between the stabilizing block (488) and the recess (492) can be sufficient to prevent lateral or rotational movement between the anvil half (414) and the pivot housing (476). Thus, once properly inserted into the pivot housing (476), the anvil half (414) can be fully attached to the pivot housing (476) so that the anvil half (414) is also pivotally coupled to the proximal frame (418) of the cartridge half (412).

[0114] Because the pivot housing (476) has a secure pivotal connection to the proximal frame portion (418), as described above, the anvil half-section (414) also has a secure pivotal connection when coupled to the pivot housing (476) via the anvil coupling section (480). Thus, due to this secure pivotal connection, an operator can attempt to properly manipulate the stapler (410) as described herein without inadvertently disengaging the half-sections (412, 414) at the proximal pivotal connection.

[0115] The operator can then utilize stapler (410) as described herein. When the operator desires to disengage the halves (412, 414), the operator can pull the anvil half (414) away from the pivot housing (476) to overcome the magnetic attraction between the body (482) and the recess (490) until the anvil coupling section (480) is completely removed from the pivot bin section (472).

[0116] Although in the present example, the pivot pin (474) and side flange (422) pivotally couple the proximal frame portion (418) and the pivot housing (476), as will be apparent to one skilled in the art having reference to the teachings herein, any other suitable mechanism may be used to pivotally couple the pivot housing (476) to the proximal frame portion (418), such as a living hinge substantially similar to the living hinge (304) described above.

[0117] While in the present example, pivot housing (476) is coupled to cartridge half (412), this is merely optional as pivot housing (476) may be coupled to anvil half (414) and anvil coupling section (480) may be coupled to cartridge half (412).

[0118] D. Second linear surgical stapler with magnetic separation mechanism

[0119] Figures 23 to 26 An exemplary linear surgical stapler (510) that can be used to replace the linear surgical stapler (10) described above is shown. As will be described in more detail below, the linear surgical stapler (510) includes a proximal coupling assembly (570) that allows for easy coupling and disengagement of the cartridge half (512) and the anvil half (514) while ensuring a secure proximal pivotal relationship between the halves (512, 514).

[0120] The linear surgical stapler (510) can be substantially similar to the linear surgical stapler (10) described above, but with the differences detailed below. Thus, the linear surgical stapler (512) includes a cartridge half (512) and an anvil half (514) that are substantially similar to the cartridge half (12) and anvil half (14) described above, but with the differences detailed below.

[0121] The cartridge half (512) includes an elongated cartridge channel (516), a proximal frame (518) having upstanding side flanges (522), and a firing assembly (530); each of which is substantially similar to the elongated cartridge channel (16), proximal frame (18), upstanding side flanges (22), and firing assembly (100) described above, but with differences as detailed below. Although not specifically shown, the cartridge half (512) may also have a clamping lever having an elongated arm and a pair of opposing jaws; each of which may be substantially similar to the clamping lever (40), elongated arm (44), and opposing jaws (48) described above.

[0122] The anvil half (514) includes an elongated anvil channel (560), a proximal frame portion (not shown), a distal jaw portion (564), a latch pin (not shown), and a cover (578); they are substantially similar to the elongated anvil channel (60), proximal frame portion (62), distal jaw portion (64), latch pin (68), and cover (78) described above, respectively, but with differences as detailed below. Although not shown, it should be understood that the proximal frame portion (not shown) is housed within the cover (578), similar to how the proximal frame portion (62) is housed within the cover (78) described above.

[0123] Although the magazine half (12) and the anvil half (14) include a tapered recess (26) and a proximal pin (70), respectively, to provide a temporary pivotal connection between the magazine half (12) and the anvil half (14); the linear surgical stapler (510) includes a proximal connection assembly (570) that allows a temporary connection between the magazine half (512) and the anvil half (514) while also ensuring a secure proximal pivotal relationship between the halves (512, 514).

[0124] The latch proximal coupling assembly (570) includes a pivot bin section (572) and an anvil coupling section (580). Figures 24 to 25 As best shown, the pivot bay section (572) includes a pivot pin (574) and a pivot housing (576). The pivot housing (576) is pivotally coupled to the proximal section of the proximal frame portion (518) via the pivot pin (574) coupled to the side flange (522).

[0125] Unlike the proximal pin (70) described above, the pivot pin (574) is configured to remain pivotally coupled to the side flange (522) such that, during exemplary use, the pivot pin (574) and the pivot housing (576) may not separate from the proximal frame portion (518). In other words, the pivot housing (576) is attached to the side flange (522) such that the pivot housing (576) can pivot relative to the proximal frame (518) about an axis defined by the pivot pin (574), but the pivot housing (576) will not otherwise detach or separate from the proximal frame portion (518) during exemplary use. For example, if an operator holds the cartridge half (512) by merely gripping the pivot housing (576), the pivot housing (576) and the proximal frame portion (518) will remain coupled via the interaction between the pivot pin (574) and the side flange (522).

[0126] The pivot housing (576) defines a keyhole recess (590) that accommodates a magnetic element (594). The keyhole recess (590) is sized to selectively accommodate anvil coupling section (580). As will be described in greater detail below, the pivot housing (576) is configured to selectively couple to the anvil half (514) via the anvil coupling section (580) to establish a secure pivotable connection between the anvil half (514) and the proximal frame portion (518).

[0127] like Figure 23 and Figure 25As best shown, the anvil coupling section (580) includes a complementary key-shaped body (588) extending proximally from the cover (578). The key-shaped body (588) has a tubular portion (584) with a magnetic inner surface (582). According to the description herein, when the anvil coupling section (580) is attached to the pivot bin section (572), the size of the key-shaped body (588) is set to fit within the confines of the keyhole (590) of the pivot bin section (572). The size of the key-shaped body (588) and the keyhole (590) is sufficient to inhibit lateral or rotational movement of the key-shaped body (588) relative to the keyhole (590).

[0128] Similarly, according to the description herein, when the anvil coupling section (580) is attached to the pivot bin section (572), the magnetic element (594) is sized to fit without the interior of the tubular portion (584). According to the description herein, when the magnetic body (582) is housed within the tubular portion (584), the magnetic element (594) and the magnetic surface (582) are magnetically attracted to each other with sufficient magnetic force to inhibit distal longitudinal movement of the anvil half (514) relative to the pivot housing (576). Any suitable magnetic relationship between the body (582) and the surface (582) can be used, as will be apparent to those skilled in the art having reference to the teachings herein.

[0129] Figures 25 to 26 An exemplary assembly of anvil half (514) and cartridge half (512) via proximal coupling assembly (570) is shown. Figure 25 As shown, the operator can align the open end of the pivot housing (576) with the proximal end of the anvil coupling section (580). Figures 25 to 26 As shown therein, an operator may insert the key-shaped body (588) into the key hole (590) such that the magnetic element (594) is inserted into the tubular portion (584).

[0130] Once the magnetic body (594) is housed within the tubular portion (584), the magnetic attraction between the body (594) and the surface (582) can inhibit distal longitudinal movement of the anvil half-section (514) relative to the pivot housing (576). Additionally, the engagement between the key-shaped body (588) and the keyhole (590) can be sufficient to prevent lateral or rotational movement between the anvil half-section (514) and the pivot housing (576). Thus, once properly inserted into the pivot housing (576), the anvil half-section (514) can be fully attached to the pivot housing (576) such that the anvil half-section (514) is also pivotally coupled to the proximal frame (418) of the cartridge half-section (412).

[0131] Because the pivot housing (576) has a secure pivotal connection to the proximal frame portion (518), as described above, the anvil half-section (514) also has a secure pivotal connection when coupled to the pivot housing (576) via the anvil coupling section (580). Thus, due to this secure pivotal connection, an operator can attempt to properly manipulate the stapler (510) as described herein without inadvertently disengaging the half-sections (512, 514) at the proximal pivotal connection.

[0132] The operator can then utilize stapler (510) as described herein. When the operator desires to disengage the halves (512, 514), the operator can pull the anvil half (514) away from the pivot housing (576) to overcome the magnetic attraction between the body (594) and the surface (582) until the anvil coupling section (580) is completely removed from the pivot bin section (572).

[0133] Although in the present example, the pivot pin (574) and side flange (452) pivotally couple the proximal frame portion (518) and the pivot housing (576), as will be apparent to one skilled in the art having reference to the teachings herein, any other suitable mechanism may be used to pivotally couple the pivot housing (576) to the proximal frame portion (518), such as a living hinge substantially similar to the living hinge (304) described above.

[0134] While in the present example, pivot housing (576) is coupled to cartridge half (512), this is merely optional as pivot housing (576) may be coupled to anvil half (514) and anvil coupling section (580) may be coupled to cartridge half (512).

[0135] E. Linear surgical stapler with friction separation mechanism

[0136] Figures 27 to 30 An exemplary linear surgical stapler (610) that can be used to replace the linear surgical stapler (10) described above is shown. As will be described in more detail below, the linear surgical stapler (610) includes a proximal coupling assembly (670) that allows for easy coupling and disengagement of the cartridge half (612) and the anvil half (614) while ensuring a secure proximal pivotal relationship between the halves (612, 614).

[0137] The linear surgical stapler (610) can be substantially similar to the linear surgical stapler (10) described above, but with the differences detailed below. Thus, the linear surgical stapler (612) includes a cartridge half (612) and an anvil half (614), which are substantially similar to the cartridge half (12) and anvil half (14) described above, but with the differences detailed below.

[0138] The cartridge half (612) includes an elongated cartridge channel (616), a proximal frame (618) having upstanding side flanges (622), and a firing assembly (630); each of which is substantially similar to the elongated cartridge channel (16), proximal frame (18), upstanding side flanges (22), and firing assembly (100) described above, but with the differences described in detail below. Although not specifically shown, it should be understood that the cartridge half (612) may also include a clamping lever (not shown) having an elongated arm (not shown) and a pair of opposed jaws (not shown); each of which may be substantially similar to the clamping lever (40), elongated arm (44), and opposed jaws (48) described above, respectively.

[0139] The anvil half (614) includes an elongated anvil channel (660), a proximal frame portion (not shown), a distal jaw portion (664), a latch pin (not shown), and a cover (678); they are substantially similar to the elongated anvil channel (60), proximal frame portion (62), distal jaw portion (64), latch pin (68), and cover (78) described above, respectively, but with differences as detailed below. Although not shown, it should be understood that the proximal frame portion (not shown) is housed within the cover (678), similar to how the proximal frame portion (62) is housed within the cover (78) described above.

[0140] While the magazine half (12) and the anvil half (14) include tapered recesses (26) and proximal pins (70), respectively, to provide a temporary pivotal connection between the magazine half (12) and the anvil half (14), the linear surgical stapler (610) includes a proximal connection assembly (670) that allows for a temporary connection between the magazine half (612) and the anvil half (614) while also ensuring a secure proximal pivotal relationship between the halves (612, 614).

[0141] The latch proximal coupling assembly (670) includes a pivot bin section (672) and an anvil coupling section (680). Figure 30 As best shown, the pivot bay section (672) includes a pivot pin (674) and a pivot housing (676). The pivot housing (676) is pivotally coupled to the proximal section of the proximal frame portion (618) via the pivot pin (674) coupled to the side flange (622).

[0142] Unlike the proximal pin (70) described above, the pivot pin (674) is configured to remain pivotally coupled to the side flange (622) such that, during exemplary use, the pivot pin (674) and the pivot housing (676) may not be separated from the proximal frame portion (618). In other words, the pivot housing (676) is attached to the side flange (622) such that the pivot housing (676) can pivot relative to the proximal frame portion (618) about an axis defined by the pivot pin (674), but the pivot housing (676) will not otherwise be detached or separated from the proximal frame portion (618) during exemplary use. For example, if an operator holds the cartridge half (612) by merely grasping the pivot housing (676), the pivot housing (676) and the proximal frame portion (618) will remain coupled via the interaction between the pivot pin (674) and the side flange (622).

[0143] The pivot housing (676) defines a complementary hollow interior (690) that houses a leaf spring (692). The hollow interior (690) is sized to selectively house an anvil coupling section (680). As will be described in greater detail below, the pivot housing (676) is configured to selectively couple to the anvil half (614) via the anvil coupling section (680) to establish a secure pivotable connection between the anvil half (614) and the proximal frame portion (618).

[0144] like Figure 27 and Figure 29 As best shown, the anvil coupling section (680) includes a stabilizing block (688) extending proximally from the cover (678). The underside of the stabilizing block (688) defines a recess (682) sized to interact with the leaf spring (692) of the pivot housing (676). As described herein, when the anvil coupling section (680) is attached to the pivot bin section (672), the stabilizing block (688) is sized to fit within the confines of the complementary hollow interior (690) of the pivot bin section (672).

[0145] When the anvil coupling section (680) is attached to the pivot bin section (672), the leaf spring (692) is sized to fit within the recess (692). As described herein, the leaf spring (692) is sufficiently resilient to flex in response to sufficient force to accommodate the coupling of the anvil coupling section (680) to the pivot bin section (672). Additionally, as described herein, when the leaf spring (692) is received within the recess (682), the leaf spring (692) is sufficiently resilient to appropriately inhibit distal longitudinal movement of the anvil half-section (614) relative to the pivot housing (676).

[0146] Figures 27 and 28An exemplary assembly of anvil half (614) and cartridge half (612) via proximal coupling assembly (670) is shown. First, as Figure 27 As shown, the operator can align the open end of the pivot housing (676) with the proximal end of the anvil coupling section (680). Figures 27 and 28 As shown, the operator can insert the anvil coupling section (680) into the complementary opening (690) of the pivot housing (676) with sufficient force to bend the leaf spring (692). When the leaf spring (692) is in the recess (682), the leaf spring (692) can return to a relaxed position and / or engage the surface defining the recess (682) to provide a friction braking force. Figure 28 At the moment shown, anvil coupling section (280) is fully inserted into hollow interior (290).

[0147] Once the leaf spring (692) is received within the recess (682), the frictional braking force between the leaf spring (692) and the recess (682) can inhibit distal longitudinal movement of the anvil half (614) relative to the pivot housing (676). Additionally, the engagement between the stabilizing block (688) and the complementary opening (690) can be sufficient to prevent lateral or rotational movement between the anvil half (614) and the pivot housing (676). Thus, once properly inserted into the pivot housing (676), the anvil half (614) can be fully attached to the pivot housing (676) such that the anvil half (614) is also pivotally coupled to the proximal frame (618) of the cartridge half (612).

[0148] Because the pivot housing (676) has a secure pivotal connection to the proximal frame portion (618), as described above, the anvil half-section (614) also has a secure pivotal connection when coupled to the pivot housing (676) via the anvil coupling section (680). Thus, due to this secure pivotal connection, an operator can attempt to properly manipulate the stapler (610) as described herein without inadvertently disengaging the half-sections (612, 614) at the proximal pivotal connection.

[0149] The operator can then utilize the stapler (610) as described herein. When the operator desires to disengage the halves (612, 614), the operator can pull the anvil half (614) away from the pivot housing (676) with sufficient force to overcome the frictional braking force of the leaf spring (692) within the recess (682) to deform the leaf spring (692) until the anvil coupling section (680) is completely removed from the hollow interior (690) of the pivot housing (676).

[0150] Although in the present example, the pivot pin (674) and side flange (622) pivotally couple the proximal frame portion (618) and the pivot housing (676), as will be apparent to one skilled in the art having reference to the teachings herein, any other suitable mechanism may be used to pivotally couple the pivot housing (676) to the proximal frame portion (618), such as a living hinge substantially similar to the living hinge (304) described above.

[0151] While in the present example, pivot housing (676) is coupled to cartridge half (612), this is merely optional as pivot housing (676) may be coupled to anvil half (614) and anvil coupling section (680) may be coupled to cartridge half (612).

[0152] While in the present example, leaf springs (692) are used to provide a frictional braking force to inhibit distal longitudinal movement of anvil half-section (614) relative to pivot housing (676), any other suitable alternative mechanism may be used, as will be apparent to those skilled in the art having reference to the teachings herein. For example, compression springs, resilient plastic retainers, resilient bodies, etc. may be used to provide sufficient frictional braking force in accordance with the teachings herein.

[0153] III. Exemplary Combinations

[0154] The following examples relate to various non-exhaustive ways in which the teachings herein may be combined or applied. It should be understood that the following examples are not intended to limit the coverage of any claims that may be provided at any time in this patent application or subsequent submissions of this patent application. It is not intended to make a disclaimer. The following examples are provided solely for illustrative purposes. It is contemplated that the various teachings herein may be arranged and applied in a variety of other ways. It is also contemplated that some variations may omit certain features mentioned in the following examples. Therefore, any of the aspects or features mentioned below should not be considered decisive unless otherwise expressly indicated as such by the inventor or the inventor's successor at a later date, for example. If any claim set forth in this patent application or subsequent submissions related to this patent application includes additional features other than those mentioned below, these additional features should not be assumed to be added for any reason related to patentability.

[0155] Example 1

[0156] 1. A device comprising: (a) a first portion comprising: (i) a first handle, and (ii) a first jaw extending distally from the first handle; (b) a second portion configured to be selectively coupled to the first portion, wherein the second portion is configured to pivot relative to the first portion about a proximal position when coupled to the first portion, the second portion comprising: (i) a second handle, and (ii) a second jaw extending distally from the second handle; and (c) a latch member movably coupled to the first portion or the second portion, wherein the latch member is configured to drive the first jaw and the second jaw toward a fully closed configuration to engage the first jaw. Tissue is clamped between the first jaw and the second jaw, wherein the first jaw and the second jaw are operable to cooperate to cut and suturing the tissue in the fully closed configuration; and (d) a proximal connecting assembly, which is configured to selectively attach the first part to the second part so that the second part is pivotally connected to the first part, wherein the proximal connecting assembly includes: (i) a pivot body, which is pivotally attached to the first part at the proximal position; and (ii) a connecting body, which is connected to the second part, wherein the connecting body is configured to engage the pivot body at a position distal to the proximal position to selectively attach the first part to the second part.

[0157] Example 2

[0158] A device as described in Example 1, wherein the latch member is pivotally coupled to the first portion about a distal pivot location.

[0159] Example 3

[0160]

[00146] The apparatus of any one or more of embodiments 1-2, wherein the first jaw comprises a cartridge receiving channel configured to selectively couple with a staple cartridge.

[0161] Example 4

[0162] The apparatus of any one or more of embodiments 1-3, wherein the second jaw comprises an anvil.

[0163] Example 5

[0164]

[00106] The apparatus of any one or more of embodiments 1-4 further includes a firing assembly coupled to the first handle, wherein the firing assembly includes a knife member.

[0165] Example 6

[0166]

[0046] The apparatus of embodiment 5, wherein the firing assembly is configured to drive a plurality of staples from a staple cartridge coupled to the first jaw.

[0167] Example 7

[0168] Embodiment 6: The apparatus of any one or more of embodiments 1 to 6, wherein the pivot body is pivotally coupled to the first portion via a pivot pin.

[0169] Example 8

[0170] Embodiment 7 includes an apparatus as described in any one or more of embodiments 1 to 7, wherein the pivot body is pivotally coupled to the first portion via a living hinge.

[0171] Example 9

[0172] Embodiment 8 includes an apparatus as described in any one or more of embodiments 1-8, wherein the pivot body defines a hollow interior and a latch aperture.

[0173] Example 10

[0174] A device according to Example 9, wherein the connecting body includes a resilient latch, and the resilient latch is configured to be selectively connected to the pivot body via the latch aperture.

[0175] Example 11

[0176] A device as recited in Example 10 wherein the coupling body further comprises a stabilizing body, wherein the pivot body defines a distal opening slot, wherein the stabilizing body is sized to fit within the distal opening slot.

[0177] Example 12

[0178] A device according to any one or more of embodiments 1 to 11, wherein the coupling body and the pivot body are configured to engage the pivot body via magnetic attraction.

[0179] Example 13

[0180] A device as in Example 12 wherein the coupling body defines a keyhole recess and the pivot body includes a key-shaped body configured to fit within the keyhole recess.

[0181] Example 14

[0182] A device as in Example 12 wherein the pivot body defines a keyhole recess and the coupling body comprises a key-shaped body configured to fit within the keyhole recess.

[0183] Example 15

[0184] A device according to any one or more of embodiments 1 to 14, wherein the pivot body and the coupling body are configured to be engageable with each other via a resilient member.

[0185] Example 16

[0186] 1. A device comprising: (a) an end effector, wherein the end effector comprises: (i) a first jaw, and (ii) a second jaw, the second jaw being configured to pivot relative to the first jaw about a proximal pivot axis between an open configuration, a partially closed configuration, and a fully closed configuration to grasp tissue, wherein the first jaw and the second jaw are operable to cooperate to cut and staple tissue in the fully closed configuration; and (b) a handle assembly, wherein the handle assembly comprises: (i) a first arm, the first arm extending proximally from the first jaw, (ii) a second arm, the second arm extending proximally from the second jaw along a longitudinal axis, and (iii) a latch member, the latch member being engaged with the first jaw at a distal pivot position. The first arm is movably connected, wherein the latch member is configured to engage the second arm or the second jaw to drive the second jaw from the partially closed configuration toward the fully closed configuration; and (c) a proximal coupling assembly, which is configured to selectively couple the first arm with the second arm, wherein the proximal coupling assembly includes: (i) a housing pivotally attached to the first arm at the proximal pivot, and (ii) an attachment member connected to the second arm, wherein the attachment member is configured to be aligned with the housing along the longitudinal axis so as to selectively couple with the housing to pivotally couple the second jaw with the first jaw about the proximal pivot.

[0187] Example 17

[0188] A device according to embodiment 16, wherein the attachment member includes a resilient latch.

[0189] Example 18

[0190] A device according to any one or more of embodiments 16 to 17, wherein the attachment member comprises a magnetic body.

[0191] Example 19

[0192] Embodiment 16. The apparatus of any one or more of Embodiments 16 to 18, wherein the housing defines a hollow interior sized to receive at least a portion of the attachment member.

[0193] Example 20

[0194] A device comprising: (a) a first portion comprising: (i) a first handle, and (ii) a first jaw, the first jaw extending distally from the first handle; (b) a second portion comprising: (i) a second handle, (ii) a second jaw, the second jaw extending distally from the second handle, and (iii) a latch protrusion, wherein the second portion is configured to be pivotally coupled to the first portion in a proximal position in an open configuration; and (c) a latch lever pivotally coupled to the first portion, wherein the latch lever is configured to engage the first jaw. and (d) a proximal coupling assembly configured to selectively couple the first portion to the second portion at a position distal to the proximal coupling, wherein the proximal coupling assembly includes a housing pivotally attached to the first handle portion at the proximal position, wherein the housing is configured to selectively attach to the second handle portion.

[0195] IV. Miscellaneous

[0196] It should be understood that any one or more of the teachings, expressions, embodiments, examples, etc. described herein may be combined with any one or more of the other teachings, expressions, embodiments, examples, etc. described herein. Therefore, the above teachings, expressions, embodiments, examples, etc. should not be considered in isolation from each other. Based on the teachings herein, various suitable ways in which the teachings herein can be combined will be apparent to those of ordinary skill in the art. Such modifications and variations are intended to be included within the scope of the claims.

[0197] In addition, any one or more of the teachings, expressions, implementations, examples, etc. described herein may be combined with any one or more of the teachings, expressions, implementations, examples, etc. described in the following documents: U.S. Publication No. 2019 / 0239883, entitled “Releasable Coupling Features for Proximal Portions of Linear Surgical Stapler,” published on August 8, 2019; U.S. Publication No. 2020 / 0046351, entitled “Decoupling Mechanism for Linear Surgical Stapler,” published on February 13, 2020; U.S. Publication No. 2020 / 0046353, entitled “Clamping Assembly for Linear Surgical Stapler,” published on February 13, 2020; U.S. Application No. [Attorney Reference END9257USNP1.0731748], entitled “Surgical Linear Cutter Wishbone Separation Mechanism with Detent,” filed on the same date as this application; and U.S. Application No. [Attorney Reference END9258USNP.0731752], entitled “Pin Trap Mechanism for Surgical Linear Cutter,” filed on the same date as this application. The disclosure of each of these applications is incorporated herein by reference.

[0198] It should be understood that any patent, patent publication, or other public material, whether in whole or in part, allegedly incorporated herein by reference is incorporated herein only to the extent that the incorporated material does not conflict with existing definitions, statements, or other public materials set forth in this disclosure. Accordingly, and to the extent necessary, the disclosure expressly set forth herein supersedes any conflicting material incorporated herein by reference. Any material, or portion thereof, allegedly incorporated herein that conflicts with existing definitions, statements, or other public materials set forth herein will be incorporated only to the extent that no conflict arises between the incorporated material and the existing public materials.

[0199] The types of devices described above can be applied to traditional medical treatments and surgeries performed by medical professionals, as well as robotic-assisted medical treatments and surgeries. By way of example only, the various teachings herein can be readily incorporated into robotic surgical systems, such as the DAVINCI® system from Intuitive Surgical, Inc. (Sunnyvale, California). TM system.

[0200] The devices of the types described above can be designed to be discarded after a single use, or they can be designed to be reusable. In either case or both cases, these types can be repaired for reuse after at least one use. Repair can include any combination of the following steps: disassembling the device, then cleaning or replacing specific parts and subsequently reassembling. Specifically, some types of devices can be disassembled, and any number of specific parts or parts of the device can be selectively replaced or removed in any combination. When cleaning and / or replacing specific parts, some types of the device can be reassembled at a repair facility or reassembled by the user before surgery is about to be performed for subsequent use. Those skilled in the art will appreciate that the repair of the device can utilize a variety of techniques to disassemble, clean / replace, and reassemble. The use of such technology and the resulting repair device are all within the scope of this application.

[0201] By way of example only, the devices described herein can be sterilized before and / or after surgery. In one sterilization technique, the device is placed in a closed and sealed container, such as a plastic bag or a TYVEK bag. The container and device can then be placed in a field of radiation that can penetrate the container, such as gamma radiation, x-rays, or high-energy electrons. The radiation can kill bacteria on the device and in the container. The sterilized device can then be stored in a sterile container for later use. The device can also be sterilized using any other technique known in the art, including but not limited to beta or gamma radiation, ethylene oxide, or steam.

[0202] Various embodiments of the present invention have been shown and described, and further improvements to the methods and systems described herein may be achieved by appropriate modifications by those skilled in the art without departing from the scope of the present invention. Several such possible modifications have been mentioned, and other modifications will be apparent to those skilled in the art. For example, the embodiments, implementations, geometries, materials, dimensions, ratios, steps, etc. discussed above are illustrative and not required. Accordingly, the scope of the present invention should be considered in light of the following claims and should be understood not to be limited to the details of construction and operation shown and described in the specification and drawings.

Claims

1. A device, comprising: (a) Part I, which comprises: (i) a first handle, and (ii) a first jaw extending distally from the first handle; (b) a second portion configured to be selectively coupled to the first portion, wherein the second portion is configured to pivot relative to the first portion about a proximal position when coupled to the first portion, the second portion comprising: (i) a second handle, and (ii) a second jaw extending distally from the second handle; (c) a latch member movably coupled to the first portion or the second portion, wherein the latch member is configured to urge the first jaw and the second jaw toward a fully closed configuration to clamp tissue between the first jaw and the second jaw, wherein the first jaw and the second jaw are operable to cooperate to cut and staple the tissue in the fully closed configuration; and (d) a proximal coupling assembly configured to selectively attach the first portion to the second portion such that the second portion is pivotally coupled to the first portion, wherein the proximal coupling assembly comprises: (i) a pivot body pivotally attached to the first portion at the proximal position, and (ii) a coupling body coupled to the second portion, wherein the coupling body is configured to engage the pivot body at a location distal to the proximal location to selectively attach the first portion to the second portion.

2. The device according to claim 1, wherein The latch member is pivotally coupled with the first portion about a distal pivot location.

3. The device according to claim 1, wherein The first jaw includes a cartridge receiving channel configured to be selectively coupled to a staple cartridge.

4. The apparatus according to claim 1, wherein The second jaw includes an anvil.

5. The apparatus of claim 1 further comprising a firing assembly coupled to the first handle, wherein the firing assembly comprises a knife member.

6. The device according to claim 5, wherein The firing assembly is configured to drive a plurality of staples from a staple cartridge coupled to the first jaw.

7. The apparatus according to claim 1, wherein The pivot body is pivotally coupled with the first portion via a pivot pin.

8. The apparatus according to claim 1, wherein The pivot body is pivotally coupled with the first portion via a living hinge.

9. The apparatus according to claim 1, wherein The pivot body defines a hollow interior and a latch aperture.

10. The apparatus according to claim 9, wherein The coupling body includes a resilient latch configured to be selectively coupled with the pivot body via the latch aperture.

11. The apparatus according to claim 10, wherein The coupling body further includes a stabilizing body, wherein the pivot body defines a distal opening slot, wherein the stabilizing body is sized to fit within the distal opening slot.

12. The apparatus according to claim 1, wherein The coupling body and the pivot body are configured to engage the pivot body via magnetic attraction.

13. The apparatus according to claim 12, wherein The coupling body defines a keyhole recess, and the pivot body includes a key-shaped body configured to fit within the keyhole recess.

14. The apparatus according to claim 12, wherein The pivot body defines a keyhole recess, and the coupling body includes a key-shaped body configured to fit within the keyhole recess.

15. The apparatus according to claim 1, wherein The pivot body and the coupling body are configured to be engageable with each other via an elastic member.

16. The apparatus according to claim 1, wherein the second jaw being configured to pivot relative to the first jaw about a proximal pivot at the proximal position between an open configuration, a partially closed configuration, and the fully closed configuration for grasping tissue; the first handle and the second handle comprising a first arm and a second arm, respectively; the latch member being movably coupled to the first arm, wherein the latch member is configured to engage the second arm or the second jaw to drive the second jaw from the partially closed configuration toward the fully closed configuration; the proximal coupling assembly being configured to attach the first portion to the second portion by selectively coupling the first arm to the second arm, the pivot body being a housing pivotally attached to the first arm at the proximal pivot; The pivot body is an attachment member coupled to the second arm, wherein the attachment member is configured to be aligned with the housing along a longitudinal axis for selective coupling thereto to pivotally couple the second jaw to the first jaw about the proximal pivot axis.

17. The apparatus according to claim 16, wherein The attachment member includes a resilient latch.

18. The apparatus according to claim 16, wherein The attachment member includes a magnetic body.

19. The apparatus according to claim 16, wherein The housing defines a hollow interior sized to receive at least a portion of the attachment member.

20. The apparatus of claim 1 , wherein the second portion comprises a latch protrusion, the latch member is a latch lever, the latch lever is pivotally coupled to the first portion, and the pivot body comprises a housing pivotally attached to the first handle at the proximal position, wherein the housing is configured to be selectively attachable to the second handle.

Images