Pin-catching mechanism for surgical linear cutters

Abstract

A surgical stapler includes: a first stapler half including an anvil surface having a plurality of staple-forming recesses; and a second stapler half configured to be releasably coupled to the first stapler half. The second stapler half is operable to deploy staples toward the anvil surface. The stapler also includes a protrusion positioned on one of the stapler halves and extending laterally relative to a longitudinal axis of the stapler. The stapler halves are configured to pivot about the protrusion relative to each other. The stapler also includes a locking member positioned on the other of the stapler halves. The locking member is configured to translate along the longitudinal axis of the stapler between a locked state and an unlocked state, in which the locking member selectively engages the protrusion and in which the locking member selectively releases the protrusion. The locking member is biased proximally toward the locked state.

Description

Background Technology

[0001] In some surgical procedures, such as gastrointestinal anastomosis, it may be desirable to clamp one or more layers of tissue, cut through the clamped layers, and simultaneously drive staples through the layers to substantially seal the cut tissue layers together near the cut ends. One such instrument that can be used in such procedures is a linear surgical stapler, also known as a “linear cutter.” A linear surgical stapler typically comprises a first half (called the “cabin half” or “reloading half”) and a second half (called the “anvil half”), the first half having distal jaws configured to support the staple cartridge (or “reloading”), and the second half having distal jaws supporting anvil surfaces with staple-forming features. The stapler also includes movable clamping levers configured to releasably clamp these stapler halves together. These stapler halves are configured to pivot relative to each other when the clamping levers are closed to receive and clamp tissue between the two distal jaws. The firing assembly of the stapler is configured to be actuated to cut the clamped layer and simultaneously drive the staples through the tissue on either side of the cut line. After firing the stapler, the clamping levers can be opened and the stapler half separates to release the cut and sutured tissue.

[0002] Although various surgical suturing instruments and associated components have been manufactured and used, it is believed that no one had manufactured or used the invention described in the appended claims prior to the inventors. Attached Figure Description

[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, illustrating that the stapler's chamber half and anvil half are joined together, with the clamping lever of the chamber half in a fully closed position;

[0005] Figure 2 It shows Figure 1 Exploded perspective view of a linear surgical stapler;

[0006] Figure 3 It shows Figure 1 A perspective view of the proximal portion of the chamber half of a straight surgical stapler, showing the chamber channel and the clamping lever in the open position in cross-section to reveal the internal features of the chamber half;

[0007] Figure 4 It shows Figure 1 Top perspective view of the firing assembly of a linear surgical suture device;

[0008] Figure 5A It shows Figure 1 A side front view of a straight surgical stapler, showing the stapler halves separated from each other;

[0009] Figure 5B It shows Figure 1 A side view of a straight surgical stapler, showing the proximal ends of the stapler halves joined together;

[0010] Figure 5C It shows Figure 1 A side view of a straight surgical stapler, showing the distal pin of the anvil half being received by the clamping lever jaws of the chamber half;

[0011] Figure 5D It shows Figure 1 A side view of a straight surgical stapler, showing the closure of the clamping levers completely clamping the stapler halves together;

[0012] Figure 5E It shows Figure 1 A side front view of a straight surgical stapler, showing the distal actuation of the firing assembly when the stapler half is fully clamped;

[0013] Figure 6 A side front view of another exemplary linear surgical stapler with a translationally lockable member or slider positioned on the half of the compartment is shown, which shows the stapler halves rotating toward each other in a clamped state;

[0014] Figure 7A It shows Figure 6 A side front view of the proximal end of a straight surgical stapler, showing the slider capture of the locked compartment half for engaging the proximal anvil pin of the stapler half at the proximal end of the stapler half.

[0015] Figure 7B It shows Figure 6 A side front view of the proximal end of a straight surgical stapler, showing the slider of the chamber half in the unlocked state releasing the proximal anvil pin to separate the stapler half;

[0016] Figure 8 It shows along Figure 7B Section line 8-8 in Figure 6 A cross-sectional view of the proximal end of a straight surgical stapler, showing the translation of the slider between the unlocked and locked states;

[0017] Figure 9AA side front view of the proximal end of another exemplary linear surgical stapler is shown, which has an anvil half with a pin biased proximally and a bin half with a corresponding cam surface for engaging the stapler half at the proximal end of the stapler half, showing the stapler half biased toward a clamped state.

[0018] Figure 9B It shows Figure 9A A side front view of the proximal end of a straight surgical stapler, showing the rotation of the anvil half away from the chamber half to guide the pin to the distal apex of the cam surface for separating the stapler half;

[0019] Figure 9C It shows Figure 9A A side front view of the proximal end of a straight surgical stapler, showing the separation of the stapler half;

[0020] Figure 10A A partial cross-sectional view of the proximal end of another exemplary linear surgical stapler with a distally biased translational locking member or slider positioned on the sac half is shown, which shows the slider of the sac half in a locked state capturing a proximal anvil pin for engaging the stapler half at the proximal end of the stapler half, and also shows the stapler half in a clamped state rotating toward each other.

[0021] Figure 10B It shows Figure 10A A partial cross-sectional view of the proximal end of a linear surgical stapler shows a slider of the chamber half in a locked state, which captures a proximal anvil pin for engaging the stapler half at the proximal end of the stapler half, and also shows stapler halves in an open state that are rotated away from each other, in which the proximal ends of the stapler halves are engaged together and the distal ends of the stapler halves are spaced apart.

[0022] Figure 10C It shows Figure 10A A partial cross-sectional view of the proximal end of a straight surgical stapler, showing the slider of the chamber half in the unlocked state, which releases the proximal anvil pin to separate the stapler half;

[0023] Figure 11 A partial cross-sectional view of the proximal end of another exemplary linear surgical stapler with a translationally biased locking member or slider positioned on the anvil half is shown, illustrating the translation of the slider between a locked and unlocked state, the slider capturing and releasing a proximal catch pin to engage and disengage the stapler half at the proximal end of the stapler half, respectively.

[0024] Figure 12A partial cross-sectional view of the proximal end of another exemplary straight surgical stapler with a C-clamp positioned on the half of the stapler and an associated ejection lever is shown, illustrating that rotation of the lever between a locked and unlocked state allows the proximal anvil pin to be captured by the C-clamp and released from the C-clamp to engage and disengage the stapler half at the proximal end of the stapler half, respectively.

[0025] Figure 13 A partial cross-sectional view of the proximal end of another exemplary linear surgical stapler with a C-clamp positioned on the half of the stapler and an associated ejection slider is shown, illustrating that translation of the slider between a locked and unlocked state allows the proximal anvil pin to be captured by the C-clamp and released from the C-clamp to engage and disengage the stapler half at the proximal end of the stapler half, respectively.

[0026] Figure 14A A partial cross-sectional view of the proximal end of another exemplary linear surgical stapler with a proximal biased translational locking member or slider is shown, wherein a cam release surface is positioned on the anvil half, showing the slider in a locked state capturing a proximal pocket pin for engaging the stapler half at the proximal end of the stapler half.

[0027] Figure 14B It shows Figure 14A A partial sectional view of the proximal end of a straight surgical stapler, showing the slider in the unlocked state releasing the proximal clip to separate the stapler half;

[0028] Figure 15A A partial cross-sectional view of the proximal end of another exemplary linear surgical stapler with a proximal biased translational locking member or slider is shown, wherein a cam insertion and separation surface is positioned on the anvil half, illustrating that the cam insertion surface of the slider interacts with a proximal chuck pin to translate the slider distally during approach of the stapler half.

[0029] Figure 15B It shows Figure 15A A partial cross-sectional view of the proximal end of a linear surgical stapler, showing a slider in a locked position for engaging the proximal pocket pin of the stapler half at the proximal end of the stapler half.

[0030] Figure 15C It shows Figure 15A A partial cross-sectional view of the proximal end of a linear surgical stapler, showing the slider in the unlocked state releasing the proximal clip to separate the stapler half, and also showing the cam separation surface of the slider interacting with the proximal clip to aid in separating the proximal end of the stapler half;

[0031] Figure 16A cross-sectional view of another exemplary locking member for a linear surgical stapler having a pair of longitudinally outward biased translational sliders is shown.

[0032] Figure 17A A cross-sectional view of the proximal end of another exemplary straight surgical stapler with a rotatable locking member is shown, illustrating that the locking member, in a locked state, captures a proximal anvil pin for engaging the stapler half at its proximal end; and

[0033] Figure 17B It shows Figure 17A A cross-sectional view of the proximal end of a linear surgical stapler, showing the locking member being rotated to the unlocked state in response to the anvil half of the stapler pivotally opening relative to the chamber half, thereby releasing the proximal chamber pin to separate the stapler half.

[0034] The accompanying drawings are not intended to be limiting in any way, and various embodiments of the invention can be conceived to be implemented in many other ways, including those not necessarily shown in the drawings. The 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; however, it should be understood that the invention is not limited to the explicit arrangements shown. Detailed Implementation

[0035] The following description of certain examples of the invention is not intended to limit the scope of the invention. Other examples, features, aspects, embodiments, and advantages of the invention will be apparent to those skilled in the art from the following description, which is shown by way of example, and a preferred mode is contemplated for carrying out the invention. It will be appreciated that the invention can have other different and obvious aspects, all of which are not departing from the invention. Therefore, the drawings and descriptions should be regarded as substantially illustrative and not restrictive.

[0036] For clarity of disclosure, the terms "proximal" and "distal" are defined herein relative to a surgeon or other operator holding a surgical instrument with a distal surgical end effector. The term "proximal" refers to a position where the element is positioned closer to the surgeon's placement, and the term "distal" refers to a position where the element is closer to the surgical end effector of the surgical instrument and further away from the surgeon's placement. Furthermore, the use of spatial terms such as "upper," "lower," "vertical," "horizontal," etc., with reference to the accompanying drawings, should be understood as such terms being used for illustrative 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, not limited to those shown and described herein.

[0037] As used herein, the terms “about” and “approximately” for any numerical value or range indicate that a part or collection of parts is permitted to perform appropriate dimensional tolerances as described herein for its intended purpose.

[0038] I. Exemplary linear surgical suture device

[0039] A. Overview of Linear Surgical Staplers

[0040] Figures 1 to 2 An exemplary linear surgical stapler (10) (also known as a “linear cutter”) suitable for a variety of cutting and suturing procedures, such as gastrointestinal anastomosis, is shown. The linear surgical stapler (10) includes a chamber half (12) (also known as a “reloading half”) and an anvil half (14) configured to be releasably coupled together to hold tissue therebetween for simultaneous cutting and suturing of the held tissue.

[0041] The chamber half (12) includes an elongated chamber 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) disposed at its distal end and a tapered notch (26) disposed at its proximal end. An outwardly projecting rigid rib (28) extends longitudinally between the distal slot (24) and the proximal notch (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 receiving of the anvil half (14) by the chamber half (12). Each side flange (22) also includes an elongated firing slot (32) extending longitudinally along the underside of the side flange (22) between a proximal notch (26) and a distal slot (24). The elongated firing slot (32) is configured to guide the firing assembly (100) between a proximal position and a distal position. (The following is in conjunction with...) Figure 4 The firing assembly (100) is described in more detail. The distal jaw portion (20) of the cartridge passage (16) is configured to receive the staple cartridge (130) (or “reload”), which may be configured in accordance with the teachings of U.S. Patent Application 16 / 537,005 entitled “Linear Surgical Stapler”, filed August 9, 2019, the disclosure of which is incorporated herein by reference.

[0042] The compartment half (12) also includes a clamping lever (40) (also referred to as a “latch lever”) pivotally connected to the compartment passage (16) by means of a clamping lever pivot pin (42), the clamping lever pivot pin being arranged to be generally aligned with a distal slot (24) of the compartment passage side flange (22). The clamping lever (40) includes an elongated lever arm (44) having a free proximal end (46) and a distal end, the distal end being pivotally connected to a lower portion of the compartment passage (16) by means of the pivot pin (42). A pair of opposing jaws (48) extend distally from the distal end of the lever arm (44) along the compartment passage 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.

[0043] The clamping lever (40) is operable to pivot relative to the compartment passage (16) between an open position and a closed position, in which the proximal end (46) of the lever arm (44) is spaced apart from the compartment passage frame portion (18), and in the closed position, the proximal end (46) faces the compartment passage frame portion (18). Actuation of the clamping lever (40) from the open position to the closed position is used to capture the opposite side ends of the latch pin (68) within the clamping lever jaw slot (50), and thereby clamp the anvil half (14) against the compartment half (12), as described below. Figures 5C to 5D As shown and described. In this respect, the curvature of each jaw slot (50) defines a corresponding upper cam surface and a lower cam surface, which are configured to engage the corresponding side end of the latch pin (68) and pull it toward the compartment passage (16) when the clamping lever (40) is pivotally closed. An elastic 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 the disengagement of the clamping lever jaws (48) from the anvil half latch pin (68). Figure 2 and Figure 3 As shown, the clamping lever (40) also includes a latching member (54) disposed at the proximal end (46) of the lever arm (44). The clamping lever latching member (54) is configured to resiliently and releasably engage the proximal end of the compartment channel frame portion (18), and thereby releasably hold the clamping lever (40) in the closed position, for example, when the suture (10) is fired.

[0044] 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) configured to be received between the storage channel side flanges (22) when the anvil half (14) is engaged with the storage half (12). A distal latching protrusion in the form of a latching pin (68) extends laterally through the distal end of the anvil channel side flange (66), and a proximal pivoting protrusion 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 engagement of the anvil half (14) and the storage half (12), as described below.

[0045] The distal jaw portion (64) of the anvil half (14) supports an anvil plate (72) that defines an anvil surface (not shown) having a plurality of nail-forming recesses configured to deform the legs of nails ejected from the nail cartridge (130) when the sewing machine (10) is fired, for example, as described in more detail, for example, as described above in U.S. Patent Application 16 / 537,005, which is incorporated herein by reference. In some embodiments, the anvil surface may be integrally formed 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 embodiments, based on the teachings of U.S. Patent Application 16 / 165,587 entitled “Decoupling Mechanism for Linear Surgical Stapler”, filed October 19, 2018, the distal end member (76) may extend selectively relative to the distal jaw portion (64), the disclosure of which is incorporated herein by reference.

[0046] like Figure 2As shown, the linear surgical stapler (10) also includes a plurality of covers (56, 78) that cover selected portions 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) such that the clamping lever cover (56) is configured to pivot relative to the compartment channel (16) together with the clamping lever (40). Additionally, the anvil cover (78) is attached to and covers the outward-facing side of the anvil channel (60). In some embodiments, the anvil cover (78) may be coupled to the anvil channel (60) according to the teachings of U.S. Patent Application 16 / 102,170, filed August 13, 2018, entitled “Clamping Assembly for Linear Surgical Stapler,” the disclosure of which is incorporated herein by reference. It should be understood that in other forms, the cover (56, 78) may be connected to the clamping lever (40) and the anvil channel (60) in various other suitable ways that are obvious to those skilled in the art.

[0047] like Figure 3 As best shown, the proximal end of the chamber half (12) includes a retaining assembly (80) configured to releasably retain portions of the anvil half (14) and the firing assembly (100). The retaining assembly (80) of this example includes an anvil latch member (82) and a stop member (84), both rotatably connected to the proximal end of the chamber passage (16) via a laterally extending pin (86) disposed proximal to the firing slot (32). A torsion spring (not shown) is configured to elastically bias the anvil latch member (82) and the stop member in opposite directions of rotation about a lateral axis defined by the pin (86).

[0048] The anvil latch member (82) includes an upper finger (88) configured to releasably capture the proximal anvil pin (70) when it is guided into a proximal tapered notch (26) in the compartment channel (16), thereby engaging the proximal ends of the stitcher halves (12, 14). The lower end of the anvil latch member (82) defines a release button (90) 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 (88), thereby allowing disengagement of the proximal ends of the stitcher halves (12, 14). The stop member (84) includes a distal finger (88) configured to releasably capture the proximal end of the slider (102) of the firing assembly (100) when the firing assembly (100) is in its proximal original position, such as... Figure 3As shown. The stop member (84) also includes a proximal hook (94) configured to releasably capture the upper end of the clamping lever latch member (54) when the slider (102) is in its proximal original position distal to it, thereby preventing actuation of the clamping lever latch member (54) and opening of the clamping lever (40) during the firing of the stitcher (10). When the firing assembly (100) is in its proximal original position (i.e., before or after the firing of the stitcher (10), the proximal hook (94) of the stop member (84) allows the clamping lever latch member (54) to be rotatably disengaged from the proximal frame portion (18) of the compartment passage (16) in response to operator actuation. Thus, the clamping lever (40) can then be opened. The related components of retaining component (80) and compartment half (12) may also be constructed and operated in accordance with at least some of the teachings of the following patent: U.S. Patent Application 16 / 102,164, filed August 13, 2018, entitled “Firing System for Linear Surgical Stapler,” the disclosure of which is incorporated herein by reference.

[0049] like Figure 4 As shown, the firing assembly (100) of the cartridge half (12) includes a slider (102), a pair of actuators (104, 106) (or “firing knobs”) pivotally coupled to the slider (102), and a plurality of elongated beams (108, 112) extending distally from the slider (102). The pair of side beams (108) are coupled to the distal end of the slider (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 (not shown) housed in the staple cartridge (130) and actuate the staple driver upward, thereby driving (or “firing”) a staple from the staple cartridge (130) into the tissue held between the staple cartridge (130) and the anvil plate (72). The central beam (112) is connected to the side beam (108) via a bridging member (114) (or “blade”) spaced distally from the slider (102). The central beam (112) terminates distally in a distally angled blade member (116) having a distal cutting edge (118) configured to cut tissue held 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 blade member (116) and a distally facing locking protrusion (122) proximal to the stop element (120).

[0050] Each actuator (104, 106) of the firing assembly (100) is configured to rotate relative to the slider (102) between a deployment position and a retracted position, such that only one actuator (104, 106) can be deployed at a time, as described in more detail, for example, in U.S. Patent Application 16 / 102,164, which is incorporated herein by reference above. In the deployment position, the actuators (104, 106) can be driven distally by the operator to actuate the firing assembly (100) distally past the suture (10), thereby simultaneously cutting and suturing the tissue held between the suture halves (12, 14).

[0051] B. Overview of Exemplary Pinning Containers

[0052] like Figure 2 As best shown, the staple cartridge (130) includes an elongated cartridge body (132) extending linearly along a longitudinal axis between a proximal end having a pair of hooks (134) and a distal end having a tapered nose (136). The proximal hooks (134) are configured to releasably capture a lever pivot pin (42) and extend downward through a corresponding opening formed in the base plate of the cartridge channel (16) when the staple cartridge (130) is located within the distal jaw portion (20) of the cartridge channel (16). A pair of wing-shaped inserts (138) located near the proximal end on the lateral side of the cartridge body (132) are configured to facilitate insertion and removal of the staple cartridge (130) relative to the distal jaw portion (20). The upper side of the cartridge body (132) defines a platform (140). An elongated blade slot (not shown) extends longitudinally along the longitudinal axis of the staple cartridge (130) through the platform (140) and is configured to slidably receive its blade member (116) therethrough in response to distal actuation of the firing assembly (100), as described above. A rigid tissue gap post (146) is fixed at the distal end of the blade slot and protrudes upward away from the cartridge platform (140). The rounded upper end of the tissue gap post (146) is configured to contact the distal end of the anvil plate (72), thereby defining a tissue gap between the cartridge platform (140) and the anvil plate (72) when the stapler halves (12, 14) are clamped together in the manner described above. The staple cartridge (130) is described in more detail according to U.S. Patent Application 16 / 537,005, which is incorporated herein by reference.

[0053] C. Exemplary use of linear surgical sutures

[0054] Figures 5A to 5E An exemplary connection of the suture halves (12, 14) and the subsequent firing of the suture (10) during surgical procedures are shown. Figure 5AAs shown, the clamping lever (40) of the chamber half (12) is positioned in the open position, such that the jaw slot (50) is aligned with the vertical slot (24) of the chamber passage side flange (22). Furthermore, the firing assembly (100) is held in its proximal original position by the stop member (84) of the holding assembly (80), as described above. Figure 3 As shown. At this stage, the tissue portion to be sutured and cut (not shown) can be positioned above the top of the staple cartridge (130) located in the distal jaw portion (20) of the cartridge half (12). Alternatively, after the proximal ends of the stapler halves (12, 14) described below are joined, the tissue can be positioned above the staple cartridge (130).

[0055] 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 downward into the proximal tapered notch (26) of the compartment channel (16) to engage the upper finger (88) of the anvil latch member (82). This engagement forces the anvil latch member (82) to rotate elastically clockwise, thereby enabling the upper finger (88) of the anvil latch member (82) to capture the anvil pin (70), and thereby releasably connecting 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) rotates about the proximal anvil pin (70) toward the anvil half (14), such that the distal latching pin (68) of the anvil half (14) is received in the vertical slot (24) of the compartment channel side flange (22) and the jaw slot (50) of the clamping lever (40). The distal jaw portions (20, 64) of the suturer half (12, 14) are now in a partially proximal state, allowing for a final adjustment of the tissue received therein before clamping.

[0056] like Figure 5D As shown, the clamping lever (40) closes to abut against the proximal end of the jaw slot (50), pulling the anvil latch pin (68), and thereby abutting against the cartridge half (12) to fully clamp the anvil half (14), wherein tissue (not shown) is held between the cartridge (130) and the anvil plate (72). The tissue gap column (146) of the cartridge (130) defines a small lateral gap between the cartridge (130) and the anvil plate (72), thus containing the tissue therein with a predetermined degree of tissue compression. Figure 5A and Figure 5B As shown, the interstitial column (146) is located at the distal end of the staple cartridge (130) and is configured to be able to be positioned within the stapler (10). Figure 5DThe distal end of the contact anvil plate (72) in the fully clamped state is shown, for example, as described in more detail in U.S. Patent Application 16 / 537,005, which is incorporated herein by reference.

[0057] like Figure 5E As shown, when fully clamped, the stitcher (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 chamber half (12). As described above... Figure 4 This action causes the elongated beam (108, 112) of the firing assembly (100) to translate distally through a corresponding channel formed in the staple cartridge (130), thereby firing staples into the held tissue via the cam ramp (110) and staple driver, while simultaneously cutting the held tissue using the blade member (116). After completing the firing stroke, the firing assembly (100) returns to its proximal original 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 retaining assembly (80) can then be depressed to release the anvil half (14) from the cartridge half (12), allowing the stapler halves (12, 14) to separate from each other, thereby releasing the newly sutured and cut tissue. It should be understood that in some forms, the suture (10) may include features that facilitate the disengagement of the suture halves (12, 14), which are similar to those described in more detail in U.S. Patent Application 16 / 165,587, which is incorporated herein by reference.

[0058] II. Exemplary Surgical Linear Cutter Pin Capture Mechanism

[0059] As described above in conjunction with the surgical stapler (10), a pivotable connection is established between the proximal ends of the stapler halves (12, 14) when the proximal anvil pin (70) is captured by the upper finger (88) of the anvil latch member (82). The release button (90) of the retaining assembly (80) can then be pressed down to rotate the upper finger (88) and thereby release the anvil half (14) from the storage half (12), allowing the stapler halves (12, 14) to separate from each other.

[0060] In some cases, it is desirable to provide a linear surgical stapler in an open state in which the corresponding elongated members of the stapler halves are oriented at a predetermined maximum angle relative to each other and remain releasably connected together at the proximal ends of the stapler halves (also referred to as a “suspended open” or “open” state), allowing the stapler in the open state to be easily manipulated by an operator with one hand. It may also be desirable for the operator to be able to separate the halves by intuitively actuating a linearly translatable mechanism to release the proximal pin. Such a configuration prevents accidental disengagement of the stapler halves during one-handed manipulation of the stapler, while also simplifying the desired separation of the stapler halves. The following description provides several exemplary examples of variations of a surgical stapler (10) that provide such functionality.

[0061] A. An exemplary linear cutter pin-catching mechanism with a proximal pin-catching slider.

[0062] Figures 6 to 8 An exemplary surgical stapler (210) is shown, comprising a pocket half (212) and an anvil half (214) configured to remain releasably joined together at their proximal ends in an open state. In the open state, the respective elongated members of the stapler halves (212, 214) present a predetermined maximum angular orientation relative to each other, and the pocket half and anvil half are also configured to be pull or pry apart to allow separation of the stapler halves (212, 214). The stapler (210) is similar to the stapler (10) described above, except as further described below.

[0063] The chamber half (212) of the linear surgical stapler (210) includes an elongated chamber channel (216) having a proximal frame portion (218) and a distal jaw portion (220). The proximal frame portion (218) slidably holds a firing assembly (not shown) and includes a pair of laterally opposed upright side flanges (222). Each side flange (222) includes a vertical slot (224) disposed at its distal end and a notch (226) disposed at its proximal end. In the example shown, each side flange (222) extends upward along the length of the proximal frame portion (218) to varying degrees, such that the proximal portion of each side flange (222) defining the corresponding notch (226) is generally post-shaped. It should be understood that the side flanges (222) can be constructed in any other suitable manner. For example, as shown in the combination suture (10), one or two side flanges (222) may extend upward in a more uniform manner along the length of the proximal frame portion (218).

[0064] The storage compartment (212) also includes a clamping lever (240) pivotally connected to the storage passage (216) via a clamping lever pivot pin (242), the clamping lever pivot pin being arranged to be substantially aligned with a distal slot (224) of the storage passage side flange (222). The clamping lever (240) includes an elongated lever arm (244) having a free proximal end (246) and a distal end, the distal end being pivotally connected to the lower portion of the storage passage (216) via the pivot pin (242). A pair of opposing jaws (248) extend distally from the distal end of the lever arm (244) along the storage passage side flange (222). Each jaw (248) includes a curved slot (250) having a closed proximal end and an open distal end, the open distal end being configured to receive a latching pin (268) of the anvil half (214), as described above. Figures 5A to 5E As stated above.

[0065] The anvil half (214) of the linear surgical stapler (210) includes an elongated anvil channel (260) having a proximal frame portion (262) and a distal jaw portion (264). The proximal frame portion (262) includes a pair of laterally opposed upright side flanges (266) configured to be received between the bin channel side flanges (222) when the anvil half (214) is engaged with the bin half (212). A distal latching protrusion in the form of a latching pin (268) extends laterally through the distal end of the anvil channel side flange (266), and a proximal pivoting protrusion in the form of a generally pear-shaped proximal pin (270) extends laterally through the proximal end of the anvil channel side flange (266). The distal jaw portion (264) of the anvil half (214) supports an anvil plate (272) that defines an anvil surface having a plurality of nail-forming recesses (not shown), which are configured to deform the legs of nails ejected from the nail cartridge (not shown) when the sewing machine (210) is fired.

[0066] like Figures 7A to 8 As best shown, the compartment half (212) also includes a longitudinally translatable locking member or slider (280) defining a distal end opening (282) configured to releasably retain a proximal anvil pin (270). The slider (280) also includes a pair of laterally opposed stops (284) positioned below the lower peripheral edge of the opening (282) and extending laterally inward to releasably engage the slider (280) with the compartment passage (216).

[0067] In this respect, the compartment half (212) also includes a pair of laterally opposed proximal and distal recessed members (285a, 285b), which are positioned on corresponding side flanges (222) and configured to selectively receive corresponding stop members (284) by friction or snap-fit ​​engagement for engaging the slider (280) to the compartment channel (216). In this way, the selective engagement between the stop member (284) and the distal recessed member (285b) secures the slider (280) to the proximal, post-shaped portion of the side flange (222), wherein the hole (282) and the recess (226) are longitudinally aligned to define a “locked” state of the slider (280), such as... Figure 7A As shown. Similarly, the selective engagement between the stop member (284) and the proximal recessed member (285a) secures the slider (280) to the proximal portion of the lintel-shaped side flange (222), wherein the hole (282) is proximally positioned relative to the recess (226) to define the “unlocked” state of the slider (280), as Figure 7B As shown.

[0068] like Figure 7A As best shown, the hole (282) of the slider (280) is configured to cooperate with the notch (226) to releasably and pivotally capture the proximal anvil pin (270) when it is received within the proximal notch (226) with the slider (280) in the locked state, thereby engaging the proximal ends of the suture halves (212, 214). More specifically, the hole (282) is sized and configured to allow the proximal anvil pin (270) to rotate therein to accommodate rotation of the anvil half (214) about the proximal anvil pin (270).

[0069] In this respect, the upper peripheral edge of the hole (282) can be configured to rotatably clamp the proximal anvil pin (270) against the closed end of the notch (226) to prevent the proximal anvil pin (270) from accidentally displacing from the notch (226) when the slider (280) is locked. For example, the upper peripheral edge of the hole (282) can be configured to continuously face the proximal anvil pin (270) during rotation of the anvil half (270) away from the chamber half (212) to a predetermined maximum orientation, at which the narrow upper portion of the proximal anvil pin (214) abuts the proximal surface of the notch (226) to help prevent accidental disengagement of the stitcher halves (212, 214), such as during one-handed operation of the stitcher (210). In this way, such interaction between the hole (282) and the proximal anvil pin (270) helps define the open state of the stapler (210) by allowing the chamber half (212) and the anvil half (214) to remain releasably connected together at their proximal ends while their distal ends are separated by an opening gap. Thus, the interaction between the hole (282) and the proximal anvil pin (270) helps to reliably engage the anvil half (214) to the chamber half (212) during rotation of the anvil half (214) about the proximal anvil pin (270) between the open and clamped states.

[0070] like Figure 8 As best illustrated, the dimensions of the stop member (284) are configured relative to the proximal and distal recessed members (285a, 285b) (e.g., in the lateral direction) to allow selective overriding of their interaction when a threshold longitudinal force is applied between the slider (280) and the compartment channel (216), thereby withdrawing the stop member (284) from the recessed members (285a, 285b) for moving the slider (280) between a locked and unlocked state, and / or for disengaging the slider (280) from the compartment channel (216), as respectively by Figure 7A and Figure 8 As indicated by the first and second arrows (A1, A2) in the diagram.

[0071] B. An exemplary straight retaining pin having a proximal bias on the anvil half and a cam surface on the chamber half. Wire Cutting Machine Pin Collection Mechanism

[0072] In some cases, it is desirable to provide a surgical suture with a pin trapping mechanism having an elastic feature and a cam feature that cooperate to bias the suture half toward a clamped state. Figures 9A to 9CAnother exemplary surgical stapler (310) is shown, comprising a storage half (312) and an anvil half (314) constructed in such a manner and being structurally and functionally similar to the stapler (210) described above, except as otherwise described below.

[0073] The storage compartment half (312) includes an elongated storage compartment channel (316) having a proximal frame portion (318) including a pair of laterally opposed upright side flanges (322), each upright side flange including a notch (326) disposed at its proximal end. The anvil half (314) includes an elongated anvil channel (360) having a proximal frame portion (362) including a pair of laterally opposed upright side flanges (366) configured to be received between the storage compartment side flanges (322) when the anvil half (314) is engaged with the storage compartment half (312). A proximal pivoting projection in the form of a generally pear-shaped proximal pin (370) extends laterally through the proximal end of the anvil channel side flange (366).

[0074] In the example shown, the proximal end of the anvil half (314) includes a pair of laterally opposing slots (382) extending longitudinally along the corresponding side flange (366) between the closed end and slightly below and distal to the proximal anvil pin (370). The anvil half (314) also includes a longitudinally translatable pin (384) positioned within and extending laterally outward from the slots (382), such that the lateral end of the pin (384) can engage the chamber side flange (322). As shown, the anvil half (314) also includes an elastic member in the form of a tension or extension spring (388), which is longitudinally aligned with the slot (382) and has a proximal end fixed relative to the anvil side flange (366) and a distal end fixed relative to the pin (384), such that the spring (388) is configured to bias the pin (384) toward the proximal closed end of the slot (382).

[0075] In this respect, the proximal end of the bin half (312) includes a pair of laterally opposed cam surfaces (389) that extend distally from the proximal, post-shaped portion of the respective bin side flange (322) and are configured to selectively engage a pin (384) for connecting the stitcher halves (312, 314). In the example shown, each of the cam surfaces (389) is generally rounded toward its distal apex and includes a relatively steep lower portion and a relatively gentle upper portion.

[0076] like Figure 9AAs best shown, the cam surface (389) of the clamp half (312) is configured to cooperate with the proximal biasing pin (384) to help retain the proximal anvil pin (370) within the proximal notch (326), thereby engaging the proximal ends of the stitcher halves (312, 314). More specifically, the spring (388) is configured to facilitate the placement of the pin (370) at the lower base of the cam surface (389) and resist distal movement of the pin (370) along the steep lower portion of the cam surface (389) toward its distal apex, thereby biasing the stitcher halves (312, 314) toward the clamped state. Figure 9B As best shown, the cam surface (389) of the slot half (312) is also configured to cooperate with a proximal biasing pin (384) to allow the stitcher halves (312, 314) to disengage when a threshold rotational force is applied between the stitcher halves (312, 314) sufficient to overcome the proximal bias of the pin (384), thereby guiding the pin (384) toward the distal closed end of the slot (382) and over the distal apex of the cam surface (389) to reach its flat upper portion, as shown. Figure 9B As indicated by the third arrow (A3) in the diagram. When the pin (384) is positioned at or above the distal apex of the cam surface (389), the anvil half (314) can freely separate from the chamber half (312), as... Figure 9C As indicated by the fourth arrow (A4) in the diagram.

[0077] C. An exemplary linear cutter pin catching mechanism having a distal bias locking member for capturing the proximal pin.

[0078] In some cases, it is desirable to provide a surgical suture device with a pin trapping mechanism that biases distally. Figures 10A to 10C Another exemplary surgical stapler (410) is shown, comprising a plenum half (412) and an anvil half (414) constructed in such a manner and structurally and functionally similar to the stapler (210) described above, except as otherwise described below.

[0079] The bin half (412) includes an elongated bin channel (416) having a proximal frame portion (418) and a distal jaw portion (not shown). The proximal frame portion (418) includes a pair of laterally opposed upright side flanges (422), each upright side flange including a notch (426) disposed at its distal end. The anvil half (414) includes an elongated anvil channel (460) having a proximal frame portion (462) and a distal jaw portion (not shown). The proximal frame portion (462) includes a pair of laterally opposed upright side flanges (466) configured to be received between the bin channel side flanges (422) when the anvil half (414) is connected to the bin half (412). A distal latching protrusion in the form of a latching pin (not shown) extends laterally through the distal end of the anvil channel side flange (466), and a proximal pivoting protrusion in the form of a generally pear-shaped proximal pin (470) extends laterally through the proximal end of the anvil channel side flange (466).

[0080] In the example shown, the compartment (412) also includes a longitudinally translatable locking member or slider (480) having a longitudinal base (481), an arm (483) extending upward from a proximal end of the base (481), and an upper finger or hook portion (484) extending distally from the upper end of the arm (483) and configured to releasably retain a proximal anvil pin (470). In the example shown, the slider (480) also includes a button (485) extending laterally outward from the base (481) and configured to assist the operator in gripping and manipulating the slider (480). The compartment (412) also includes a cavity (486) configured to receive the slider (480) and accommodate the slider (480) in a distally locked state (e.g., Figure 10A and 10B (as shown) and proximal unlocked state (as shown) Figure 10CThe longitudinal translation between the two halves (412 and 410) is shown. As shown, the half-section (412) also includes a hole (487) configured to allow the button (485) to extend laterally outward and to accommodate longitudinal translation corresponding to the translation of the slider (480) between the locked and unlocked states. In the example shown, both the button (485) and the hole (487) are positioned on one side of the half-section (412), with the button surface (485) facing laterally outward, such that the clamping lever (not shown) of the stitcher (410) can be accessed via the hole (487) regardless of whether it is in the open or closed position. For example, when the clamping lever is in the closed position, where the proximal end of the clamping lever faces the compartment channel frame portion (418), the button (485) and the hole (487) remain unobstructed by the clamping lever. As shown, the chamber half (412) also includes an elastic member in the form of a torsion spring (488), which is positioned between the base (481) and the inner surface of the cavity (486), such that the spring (488) is configured to bias the slider (480) distally toward the locked state.

[0081] like Figure 10A and Figure 10B As best shown, the hook portion (484) of the slider (480) is configured to cooperate with the notch (426) to releasably and pivotally capture the proximal anvil pin (470) when the slider (480) is received within the proximal notch (426) in the locked state, thereby engaging the proximal ends of the suture halves (412, 414). More specifically, the hook portion (484) is sized and configured to allow the proximal anvil pin (470) to rotate beneath it to accommodate rotation of the anvil half (414) about the proximal anvil pin (470).

[0082] In this regard, the hook portion (484) of the slider (480) may be configured to rotatably clamp the proximal anvil pin (470) against the closed end of the notch (426) to prevent the proximal anvil pin (470) from accidentally dislodging from the notch (426) when the slider (480) is in the locked state. For example, the hook portion (484) of the slider (480) may be configured to continuously face the proximal anvil pin (470) during rotation of the anvil half (414) away from the chamber half (412) to a predetermined maximum orientation, at which the narrow upper portion of the proximal anvil pin (470) abuts the proximal surface of the notch (426) and / or the distal surface of the arm (483) to help prevent accidental disengagement of the stitcher half (412, 414), such as during one-handed operation of the stitcher (410). In this way, such interaction between the hook portion (484) and the proximal anvil pin (470) helps define the open state of the suture device (410) by allowing the bin half (412) and the anvil half (414) to remain releasably connected at their proximal ends while their distal ends are separated by an opening gap. Figure 10B As shown. Therefore, the interaction between the hook portion (484) and the proximal anvil pin (470) helps to reliably engage the anvil half (414) with the bin half (412) during rotation of the anvil half (414) around the proximal anvil pin (470) between the open and clamped states.

[0083] like Figure 10C As best shown, the button (485) may be configured to allow the operator to apply a threshold proximal force to the slider (480) sufficient to overcome the distal bias of the slider (480), and thereby translate the slider (480) to the unlocked state, such that the hook portion (484) retracts proximally from the proximal anvil pin (470) for separating the suture halves (412, 414), as indicated by the fifth arrow (A5).

[0084] Although not shown, opposite configurations of the proximal pin (470) and slider (480) may be provided, wherein the proximal pin (470) is disposed on the chamber half (412), and the slider (480) is disposed on the anvil half (414). Alternatively, a dual-slider configuration may be provided, wherein the proximal pin (470) (or any other suitable proximal pivoting protrusion) is positioned on a longitudinally translatable slider and is proximally biased toward pivotally engaging with a hook portion (484) of the slider (480). In such cases, the proximal pin slider may include a button portion configured to assist an operator in gripping and manipulating the proximal pin slider.

[0085] During operation, the operator can initially connect the stapler halves (412, 414) at their proximal ends by positioning the proximal anvil pin (470) within the notch (426) while applying a threshold proximal force to the slider (480) to hold it in the unlocked state, and then releasing the slider (480) to allow the spring (488) to drive it into the locked state, thereby capturing the proximal anvil pin (470) between the hook portion (484) and the closed end of the notch (426). The operator can then rotate the anvil half (414) about the proximal anvil pin (470) relative to the chamber half (412) as needed, such as rotating between the open and clamped states, while the stapler halves (412, 414) remain reliably connected to each other to perform cutting and / or suturing procedures. If necessary, the operator can selectively separate the stitcher halves (412, 414) from each other by translating the slider (480) to the unlocked position, thereby releasing the proximal anvil pin (470) from the hook portion (484).

[0086] D. An exemplary linear cutter pin catching mechanism having a proximal bias locking member for capturing the proximal pin.

[0087] In some cases, it is desirable to provide a surgical suture device with a pin trapping mechanism that biases proximally. Figure 11 Another exemplary surgical stapler (510) is shown, comprising a sac half (512) and an anvil half (514) constructed in such a manner and structurally and functionally similar to the stapler (210) described herein, except as otherwise described below.

[0088] The storage compartment half (512) includes an elongated storage channel (516) having a proximal frame portion (518) and a distal jaw portion (not shown). The proximal frame portion (518) includes a pair of laterally opposed upright side flanges (522). The anvil half (514) includes an elongated anvil channel (560) having a proximal frame portion (562) and a distal jaw portion (not shown). The proximal frame portion (562) includes a pair of laterally opposed upright side flanges (566) configured to be received between the storage channel side flanges (522) when the anvil half (514) is engaged with the storage compartment half (512). A proximal pivoting protrusion in the form of a round (e.g., circular) proximal pin (570) extends laterally between the proximal ends of the storage channel side flanges (522).

[0089] In the example shown, the anvil half (514) also includes a longitudinally translatable locking member or slider (580) having a J-shaped finger or hook portion (584) extending distally from the button (585) and configured to releasably retain the proximal latch (570). The anvil half (512) also includes a cavity (586) configured to receive the slider (580) and accommodate longitudinal translation of the slider (580) therein between a proximal locked state and a distal unlocked state. As shown, the anvil half (514) also includes an elastic member in the form of a compression spring (588) positioned between the hook portion (584) and the inner surface of the cavity (586) such that the spring (588) is configured to proximally bias the slider (580) toward the locked state.

[0090] In this respect, the hook portion (584) of the slider (580) is configured to releasably and pivotally capture the proximal catch pin (570) when in the locked state, thereby engaging the proximal ends of the stapler halves (512, 514). The button (585) may be configured to allow an operator to apply a threshold distal force to the slider (580) sufficient to overcome the proximal bias of the slider (580), thereby translating the slider (580) to the unlocked state, such that the hook portion (584) retracts distally from the proximal catch pin (570) for separating the stapler halves (512, 514), as indicated by the sixth arrow (A6).

[0091] E. An exemplary straight cutter having a C-clamp for capturing the proximal pin and a pivotable proximal pin ejection lever. Selling and collecting agencies

[0092] In some cases, it is desirable to provide a surgical stapler with a pin trapping mechanism having a pivotable ejection lever. Figure 12 Another exemplary surgical stapler (610) is shown, comprising a storage half (612) and an anvil half (614) constructed in such a manner and being structurally and functionally similar to the stapler (210) described above, except as otherwise described below.

[0093] The storage compartment half (612) includes an elongated storage channel (616) having a proximal frame portion (618) including a pair of laterally opposed upright side flanges (622), each upright side flange including a notch (626) disposed at its proximal end. The anvil half (614) includes an elongated anvil channel (660) having a proximal frame portion (662) including a pair of laterally opposed upright side flanges (666) configured to be received between the storage channel side flanges (622) when the anvil half (614) is engaged with the storage compartment half (612). A proximal pivoting projection in the form of a generally pear-shaped proximal pin (670) extends laterally through the proximal end of the anvil channel side flange (666).

[0094] In the example shown, the storage compartment (612) also includes a C-clamp (679) longitudinally aligned with the notch (626) and configured to releasably retain the proximal anvil pin (670). The storage compartment (612) also includes an L-shaped ejection lever (680) pivotally coupled to a side flange (622) slightly below and proximal to the notch (626), such that the lever (680) can pivot between a generally vertical locked position and a generally angled unlocked position, as indicated by the seventh arrow (A7). In this respect, the lever (680) is configured to drive the proximal anvil pin (670) upward out of the C-clamp (679) when in the unlocked position to separate the suture compartments (612, 614), as indicated by the eighth arrow (A8).

[0095] Although not shown, the compartment (612) may also include an elastic member (e.g., a torsion spring) configured to bias the lever (680) toward the locked state.

[0096] F. An exemplary linear cut having a C-clamp for capturing the proximal pin and a slidable proximal pin ejection slider. Device capture mechanism

[0097] In some cases, it is desirable to provide a surgical suture device with a pin-catching mechanism having a translationally movable ejection slide. Figure 13 Another exemplary surgical stapler (710) is shown, comprising a sac half (712) and an anvil half (714) constructed in such a manner and being structurally and functionally similar to the stapler (210) described above, except as otherwise described below.

[0098] The storage compartment half (712) includes an elongated storage channel (716) having a proximal frame portion (718) including a pair of laterally opposed upright side flanges (722), each upright side flange including a notch (726) disposed at its proximal end. The anvil half (714) includes an elongated anvil channel (760) having a proximal frame portion (762) including a pair of laterally opposed upright side flanges (766) configured to be received between the storage channel side flanges (722) when the anvil half (714) is engaged with the storage compartment half (712). A proximal pivoting projection in the form of a generally pear-shaped proximal pin (770) extends laterally through the proximal end of the anvil channel side flange (766).

[0099] In the example shown, the storage compartment (712) also includes a C-clamp (779) longitudinally aligned with the notch (726) and configured to releasably retain the proximal anvil pin (770). The storage compartment (712) also includes a J-shaped ejector slide (780) slidably coupled to a side flange (722) slightly below and proximal to the notch (726), such that the slide (780) can translate between a proximal locked position and a distal unlocked position, as indicated by the ninth arrow (A9). In this respect, the slide (780) is configured to drive the proximal anvil pin (770) upward out of the C-clamp (779) when in the unlocked position to separate the suture compartments (712, 714), as indicated by the tenth arrow (A10).

[0100] Although not shown, the compartment half (712) may also include an elastic member (e.g., a compression spring) configured to bias the slider (780) toward the locked state.

[0101] G. An exemplary straight cut having a proximal bias locking member for capturing the proximal pin and cam release surface. Device capture mechanism

[0102] In some cases, it is desirable to provide a surgical stapler having a proximal biased pin catcher mechanism and a cam release feature. Figures 14A to 14B Another exemplary surgical stapler (810) is shown, comprising a storage half (812) and an anvil half (814) constructed in such a manner and structurally and functionally similar to the stapler (210) described above, except as otherwise described below.

[0103] The storage compartment half (812) includes an elongated storage channel (816) having a proximal frame portion (818) with a pair of laterally opposed upright side flanges (822). The anvil half (814) includes an elongated anvil channel (860) having a proximal frame portion (862) with a pair of laterally opposed upright side flanges (866) configured to be received between the storage channel side flanges (822) when the anvil half (814) is connected to the storage compartment half (812). A proximal pivoting protrusion in the form of a circular (e.g., circular) proximal pin (870) extends laterally between the proximal ends of the storage channel side flanges (822). Additionally, an anvil cover (878) is attached to and covers the outward-facing side of the anvil channel (860).

[0104] In the example shown, the anvil half (814) also includes a longitudinally translatable locking member or slider (880) having a base portion (881) that includes a stepped recess (882) defining a hook portion (884). More specifically, the recess (882) includes a generally downward-facing open end and a generally proximal-facing closed end configured to releasably retain a proximal latch (870). In the example shown, the slider (880) also includes a button (885) extending upward from the base (881) and configured to assist an operator in gripping and manipulating the slider (880). The slider (880) shown also includes a generally convex proximal cam surface (889).

[0105] The anvil half (812) also includes a cavity (886) configured to receive a slider (880) and accommodate the slider (880) in a proximal locking state (e.g., Figure 14A (as shown) and remote unlock status (as shown) Figure 14B The anvil cover (878) includes a hole (887) configured to allow a button (885) to extend upward through it and accommodate its longitudinal translation corresponding to the translation of the slider (880) between the locked and unlocked states. The anvil half (814) also includes an elastic member in the form of a compression spring (888) positioned between the base (881) and the inner surface of the cavity (886), such that the spring (888) is configured to bias the slider (880) proximally toward the locked state.

[0106] In this respect, the closed end of the notch (882) of the slider (880) is configured to releasably and pivotally capture the proximal catch pin (870) when in the locked state, thereby engaging the proximal ends of the stapler halves (812, 814). The button (885) may be configured to allow an operator to apply a threshold distal force to the slider (880) sufficient to overcome the proximal bias of the slider (880), thereby translating the slider (880) to the unlocked state, such that the closed end of the notch (882) retracts distally from the proximal catch pin (870) for disengaging the stapler halves (812, 814). Alternatively, the cam surface (889) of the slider (880) may be configured to interact with a corresponding angled cam surface (891) positioned on the chamber half (812) to drive the slider (880) distally in response to a threshold separation force applied to the proximal end of the stitcher half (812, 814), such as by rotation of the anvil half (814) away from the chamber half (812). For example, the cam surfaces (889, 891) may be configured to drive the slider (880) to an unlocked state in response to rotation of the anvil half (814) away from the chamber half (812) to a predetermined maximum orientation, thereby disengaging the stitcher half (812, 814).

[0107] H. An exemplary straight cut having a proximal bias locking member for capturing the proximal pin and cam separation surface. Device capture mechanism

[0108] In some cases, it is desirable to provide a surgical stapler having a proximal biased pin catcher mechanism and a cam separation feature. Figures 15A to 15C Another exemplary surgical stapler (910) is shown, comprising a storage half (912) and an anvil half (914) constructed in such a manner and structurally and functionally similar to the stapler (210) described above, except as otherwise described below.

[0109] The storage compartment half (912) includes an elongated storage channel (916) having a proximal frame portion (918) with a pair of laterally opposed upright side flanges (922). The anvil half (914) includes an elongated anvil channel (960) having a proximal frame portion (962) with a pair of laterally opposed upright side flanges (966) configured to be received between the storage channel side flanges (922) when the anvil half (914) is connected to the storage compartment half (912). A proximal pivoting protrusion in the form of a round (e.g., circular) proximal pin (970) extends laterally between the proximal ends of the storage channel side flanges (922). Additionally, an anvil cover (978) is attached to and covers the outward-facing side of the anvil channel (960).

[0110] In the example shown, the anvil half (914) also includes a longitudinally translatable locking member or slider (980) comprising a stepped notch (982) defining a hook portion (984). More specifically, the notch (982) includes a generally downward-facing open end and a generally proximal-facing closed end configured to releasably retain a proximal latch (970). In the example shown, the slider (980) also includes a proximal button surface (985) configured to assist an operator in gripping and manipulating the slider (980). The slider 980 shown also includes generally angled proximal and distal cam surfaces (989, 991) defined by the notch (982). More specifically, the proximal cam surface (989) slopes distally in an upward direction from the proximal lower edge of the notch (982), and the distal cam surface (991) slopes proximally in an upward direction from the distal lower edge of the notch (982) (e.g., along the proximal end of the hook portion (984)).

[0111] The anvil half (914) also includes a cavity (986) configured to receive a slider (980) and accommodate the slider (980) in a proximal locking state (e.g., Figure 15B (as shown) and remote unlock status (as shown) Figure 15C The longitudinal translation between (shown). As shown, the anvil cover (978) includes a hole (987) configured to allow the button surface (985) to extend proximally through the hole to allow the operator access to the button surface (985). In the example shown, both the button surface (985) and the hole (987) are located at the proximal end of the anvil half (914), with the button surface (985) facing proximally, such that the button surface (985) can be accessed via the hole (987) regardless of whether the clamping lever (not shown) of the stitcher (910) is in the open or closed position. For example, when the clamping lever is in the closed position, in which the proximal end of the clamping lever faces the compartment passage frame portion (918), the button surface (985) and the hole (987) can remain unobstructed by the clamping lever. As shown, the anvil half (914) also includes an elastic member in the form of a compression spring (988) positioned between the slider (980) and the inner surface of the cavity (986), such that the spring (988) is configured to bias the slider (880) proximally toward the locked state.

[0112] In this respect, the closed end of the notch (982) of the slider (980) is configured to releasably and pivotally capture the proximal catch pin (970) when in the locked state, thereby engaging the proximal ends of the suture halves (912, 914). Figure 15A As indicated by the eleventh and twelfth arrows (A11, A12), the distal cam surface (991) of the slider (880) can be configured to interact with the proximal slot pin (970) to initially drive the slider (980) distally during the engagement of the stitcher halves (912, 914), and as Figure 15B As indicated by arrow thirteen (A13), the spring (988) may be configured to subsequently bias the slider (980) toward the locked state so that the proximal latch (970) is positioned at the closed end of the notch (982). The button surface (985) may be configured to allow the operator to apply a threshold distal force to the slider (980) sufficient to overcome the proximal bias of the slider (980), thereby translating the slider (980) to the unlocked state, such that the closed end of the notch (982) retracts distally from the proximal latch (970) for separation of the suture halves (912, 914). Alternatively, the proximal cam surface (989) of the slider (980) may be configured to interact with the proximal chamber pin (970) to drive the proximal end of the anvil half (914) upward away from the proximal end of the chamber half (912) during translation of the slider (980) toward the unlocked state, thereby separating the stitcher halves (912, 914), as... Figure 15C As indicated by the fourteenth arrow (A14) in the diagram.

[0113] Although not shown, opposite configurations of the proximal pin (970) and the slider (980) may be provided, wherein the proximal pin (970) is disposed on the anvil half (912) and the slider (980) is disposed on the chamber half (914).

[0114] During operation, the operator can initially connect the stapler halves (912, 914) at their proximal ends by lowering the anvil half (914) toward the chamber half (912) such that the distal cam surface (991) and the proximal chamber pin (970) cooperate to drive the slider (980) distally and allow the proximal chamber pin (970) to enter the notch (982), and a spring (988) can then bias the slider (880) toward the locked state to position the proximal chamber pin (970) at the closed end of the notch (982). The operator can then rotate the anvil half (914) about the proximal chamber pin (970) relative to the chamber half (912) as needed, such as rotating between an open and clamped state, while the stapler halves (912, 914) remain reliably connected to each other to perform cutting and / or suturing procedures. If necessary, the operator may selectively separate the stitcher halves (912, 914) from each other by translating the slider (980) to the unlocked state, thereby releasing the proximal chamber pin (970) from the closed end of the notch (982), and causing the proximal cam surface (989) and the proximal chamber pin (970) to cooperate to drive the proximal end of the anvil half (914) away from the proximal end of the chamber half (912) upward.

[0115] I. An exemplary straight cutter pin catcher having a relative bias locking member portion for capturing proximal pins. Structure

[0116] In some cases, it is desirable to provide a pin-catching mechanism for a surgical suture having a pair of longitudinally opposing slides. Figure 16 An exemplary locking member (1080) is shown, which is constructed in such a manner and, except as otherwise described below, can be incorporated into a suture that is structurally and functionally similar to the suture (210) described above.

[0117] The locking member (1080) includes a pair of longitudinally opposing proximal and distal sliders (1080a, 1080b) capable of longitudinal translation. In the example shown, each slider (1080a, 1080b) includes a longitudinal arm (1083a, 1083b) and a longitudinally inwardly extending finger or hook portion (1084a, 1084b) configured to cooperate with each other to releasably retain a proximal pivoting protrusion of the suture (e.g., a proximal anvil pin or proximal pocket pin). More specifically, the hook portion (1084a) of the proximal slider (1080a) extends laterally inward from the distal end of the arm (1083a), and the hook portion (1084b) of the distal slider (1080b) extends laterally inward from the proximal end of the arm (1083b). In the example shown, each of the sliders (1080a, 1080b) further includes a longitudinally outward button (1085a, 1085b) configured to assist the operator in gripping and manipulating the corresponding slider (1080a, 1080b). The sliders (1080a, 1080b) may be configured to be received by one or more cavities disposed in the chamber or anvil half of the suture to accommodate longitudinal translation of the sliders (1080a, 1080b) relative to each other between a longitudinally outward locked state and a longitudinally inward unlocked state, as indicated by arrow 15 (A15). In one example, such a chamber or anvil half may also include an aperture (e.g., in its cover) configured to allow buttons (1085a, 1085b) to extend outward through it and accommodate their longitudinal translation corresponding to the translation of the corresponding slider (1080a, 1080b) between the locked and unlocked states. As shown, the locking member (1080) also includes a pair of longitudinally opposing elastic members in the form of proximal and distal compression springs (1088a, 1088b), which are positioned between the sliders (1080a, 1080b) such that the springs (1088a, 1088b) are configured to bias the sliders (1080a, 1080b) longitudinally outward relative to each other toward the locked state.

[0118] In this respect, the hook portions (1084a, 1084b) of the sliders (1080a, 1080b) are configured to cooperate with each other to releasably and pivotally capture the proximal pivoting protrusion of the suture when in the locked state, thereby engaging the proximal end of the suture half. The buttons (1085a, 1085b) are configured to allow the operator to apply a threshold longitudinally inward force to the sliders (1080a, 1080b) sufficient to overcome the longitudinally outward bias of the sliders (1080a, 1080b), thereby translating the sliders (1080a, 1080b) to the unlocked state, causing the hook portions (1085a, 1085b) to retract longitudinally from the proximal pivoting protrusion to separate the suture half. Alternatively, the hook portions (1085a, 1085b) may include angled or rounded cam surfaces (not shown) configured to interact with the proximal pivoting protrusion to longitudinally drive the slider (1080a, 1080b) in response to a threshold separation force applied at the proximal end of the stitcher half (such as rotation of the stitcher half away from each other). For example, such cam surfaces may be configured to drive the slider (1080a, 1080b) to an unlocked state in response to rotation of the stitcher half away from each other to a predetermined maximum orientation, thereby disengaging the stitcher half.

[0119] J. An exemplary straight cutter having a rotatable locking member for capturing the proximal pin and torque arm feature. Selling and collecting agencies

[0120] In some cases, it is desirable to provide a surgical suture device with a pin trapping mechanism that is rotatable and has a torque arm release feature. Figures 17A to 17B Another exemplary surgical stapler (1110) is shown, comprising a storage half (1112) and an anvil half (1114) constructed in such a manner and structurally and functionally similar to the stapler (210) described above, except as otherwise described below.

[0121] The storage compartment half (1112) includes an elongated storage channel (1116) having a proximal frame portion (1118) including a pair of laterally opposed upright side flanges (1122), each upright side flange including a tapered notch (1126) disposed at its proximal end. The anvil half (1114) includes an elongated anvil channel (1160) having a proximal frame portion (1162) including a pair of laterally opposed upright side flanges (1166) configured to be received between the storage channel side flanges (1122) when the anvil half (1114) is connected to the storage compartment half (1112). A proximal pivoting protrusion in the form of a round (e.g., circular) proximal pin (1170) extends laterally between the proximal ends of the anvil channel side flange (1166). Additionally, the anvil half (1114) includes a proximal anvil channel extension (1179) that protrudes proximally from the proximal end of the anvil channel (1160).

[0122] In the example shown, the proximal frame portion (1118) of the compartment passage (1116) supports a proximal retaining assembly (1180) that is generally similar to those described in U.S. Publication 2020 / 0046351 entitled “Decoupling Mechanism for Linear Surgical Staler”, published on February 13, 2020, the disclosure of which is incorporated herein by reference. The anvil latch member (1182) of the proximal retaining assembly (1180) includes a generally cylindrical body (1184), latch fingers (1186) extending upward from the body (1184), a release button (1188) extending downward from the body (1184), and a torque arm (1190) extending proximally and laterally from the body (1184).

[0123] like Figure 17A As shown, the anvil half (1114) is configured to pivot relative to the chamber half (1112) about a first pivot axis defined by the proximal anvil pin (1170) and open to a predetermined extent through a first range of motion, at which the proximal anvil channel extension (1179) directly contacts the upper surface of the torque arm (1190). Figure 17BAs shown, the anvil half (1114) is pivoted around the proximal anvil pin (1170) and further opened through a second range of motion, causing the proximal anvil channel extension (1179) to drive the torque arm (1190) downward, as indicated by arrow sixteen (A16). This downward movement of the torque arm (1190) causes the anvil latch member (1182) to rotate, causing the latch finger (1186) to move proximally to release the proximal anvil pin (1170). Thus, the torque arm (1190) and the proximal anvil channel extension (1179) cooperate to define a disengagement mechanism functionally similar to those described in U.S. Publication 2020 / 0046351, which is incorporated herein by reference. In this respect, further opening of the anvil half (1114) causes the anvil half (1114) to pivot relative to the chamber half (1112) about a second pivot axis defined by the contact point between the torque arm (1190) and the proximal anvil channel extension (1179). This second pivot axis of the disengagement mechanism is located proximal to the first pivot axis defined by the proximal anvil pin (1170). Pivoting the anvil half (1114) about this second pivot axis lifts the proximal anvil pin (1170) from the proximal notch (1126) of the chamber half (1112), while the latching member (1182) remains in the released position, allowing the proximal ends of the stitcher halves (1112, 1114) to separate from each other.

[0124] In some of this type, the modified anvil latch member (1182) of the linear surgical stapler (1110) can be appropriately resiliently biased toward its distal latch position to resist a predetermined amount of torque applied by the proximal anvil channel extension (1179) via the torque arm (1190). This allows the user to hold the stapler (1110) in an "open" configuration in which the stapler halves (1112, 1114) can be pivotally opened to the point where the proximal anvil channel extension (1179) rests on the torque arm (1190) of the anvil latch member (1182). Simultaneously, the anvil latch member (1182) retains its distal latch position to prevent the proximal ends of the stapler halves (1112, 1114) from disengaging until the user actively forces the anvil half (1114) to open further relative to the cisternive half (1112).

[0125] III. Exemplary Combinations

[0126] The following examples illustrate various non-exhaustive ways in which the teachings herein can be combined or applied. It should be understood that the following examples are not intended to limit the scope of any claims that may be provided at any time in this patent application or a subsequent filing thereof. No disclaimer is intended. The following examples are provided merely 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, none of the aspects or features mentioned below should be considered definitive unless otherwise expressly indicated, for example, by the inventor or a successor of the inventor of interest, at a later date. If any claim set forth in this patent application or a subsequent filing related to this patent application includes additional features beyond those mentioned below, such additional features should not be presumed to have been added for any reason related to patentability.

[0127] Example 1

[0128] A surgical suture includes: (a) a first suture half including an anvil surface having a plurality of staple-forming recesses; (b) a second suture half configured to releasably engage with the first suture half, wherein the second suture half is operatively deployable staples toward the anvil surface; and (c) a proximal pivoting projection located on one of the first or second suture half and extending laterally relative to the longitudinal axis of the surgical suture, wherein the first and second suture halves... (d) A locking member positioned on the other of the first or second suture half, wherein the locking member is configured to translate along the longitudinal axis of the surgical suture between a proximal locked state and a distal unlocked state, wherein in the proximal locked state the locking member selectively captures the proximal pivoting protrusion and in the distal unlocked state the locking member selectively releases the proximal pivoting protrusion, wherein the locking member is biased proximally toward the locked state.

[0129] Example 2

[0130] According to the surgical suture device of Embodiment 1, the locking member includes a notch having a proximal closed end, the notch being configured to pivotally receive the proximal pivoting protrusion when in the locked state.

[0131] Example 3

[0132] According to the surgical stapler of Embodiment 2, the notch defines a cam surface configured to selectively engage the proximal pivoting protrusion in response to translation of the locking member toward the unlocked state, thereby driving the first stapler half and the second stapler half away from each other.

[0133] Example 4

[0134] According to the surgical suture device of Embodiment 3, the cam surface is inclined distally from the proximal lower edge of the notch in a direction away from the second suture half.

[0135] Example 5

[0136] According to one or more of embodiments 2 to 4, the surgical stapler wherein the notch defines a cam surface configured to selectively engage the proximal pivoting protrusion in response to a linear approach of the first stapler half toward the second stapler half, so as to translate the locking member toward the unlocked state.

[0137] Example 6

[0138] According to the surgical suture device of Embodiment 5, the cam surface is inclined proximally from the distal lower edge of the notch in a direction away from the second suture half.

[0139] Example 7

[0140] According to any one of the foregoing embodiments, the surgical suture device includes a button portion configured to receive a threshold longitudinal force sufficient to overcome the proximal bias of the locking member, thereby causing the locking member to translate distally toward the unlocked state.

[0141] Example 8

[0142] According to the surgical suture device of Embodiment 7, the other of the first suture device half or the second suture device half includes a hole, wherein the button portion extends proximally through the hole.

[0143] Example 9

[0144] The surgical stapler according to any one of the foregoing embodiments further includes an elastic member configured to bias the locking member proximally toward the locked state.

[0145] Example 10

[0146] According to the surgical suture device of Embodiment 9, the elastic member includes at least one of a torsion spring, a tension spring, or a compression spring.

[0147] Example 11

[0148] According to any one of the foregoing embodiments, in the surgical stapler, the locking member is configured to continuously capture the proximal pivoting protrusion when in the locked state during pivoting of the first stapler half relative to the second stapler half around the proximal pivoting protrusion between the clamped state and the open state of the surgical stapler, wherein in the open state, the proximal ends of the first stapler half and the proximal ends of the second stapler half remain releasably connected together.

[0149] Example 12

[0150] According to any one of the foregoing embodiments, the surgical stapler wherein the proximal pivoting protrusion is positioned on the second stapler half, and the locking member is positioned on the first stapler half.

[0151] Example 13

[0152] According to any one or more of the surgical staplers described in Embodiments 1 to 11, wherein the proximal pivoting protrusion is positioned on the first stapler half and the locking member is positioned on the second stapler half.

[0153] Example 14

[0154] According to any one of the foregoing embodiments, the surgical suture device, wherein the proximal pivoting protrusion includes a pin having a circular cross-sectional shape.

[0155] Example 15

[0156] According to any one of the foregoing embodiments, the surgical stapler, wherein the second stapler half includes an elongated member having a distal portion configured to receive a staple cartridge.

[0157] Example 16

[0158] A surgical suture includes: (a) a first suture half including an anvil surface having a plurality of staple-forming recesses; (b) a second suture half configured to releasably engage with the first suture half, wherein the second suture half is operatively deployable toward the anvil surface; (c) a proximal pivoting projection positioned on one of the first or second suture half and extending laterally relative to a longitudinal axis of the surgical suture, wherein the first and second suture halves are configured to pivot about the proximal pivoting projection relative to each other; and (d) A slider positioned on the other of the first suture half or the second suture half, wherein the slider is configured to translate along the longitudinal axis of the surgical suture between a locked state and an unlocked state, wherein the slider includes: (i) a hook portion configured to selectively engage and release the proximal pivoting protrusion when the slider is in the latched state and the unlocked state, respectively; and (ii) a first cam surface configured to selectively engage the proximal pivoting protrusion in response to translation of the slider toward the unlocked state to drive the first suture half and the second suture half away from each other.

[0159] Example 17

[0160] According to the surgical stapler of Embodiment 16, the slider further includes a second cam surface configured to selectively engage the proximal pivoting protrusion in response to a linear approach of the first stapler half toward the second stapler half, so as to translate the slider toward the unlocked state.

[0161] Example 18

[0162] A surgical suture device comprising: (a) a first suture half, the first suture half including: (i) an anvil surface having a plurality of staple-forming recesses; and (ii) a proximal pivoting protrusion extending laterally relative to a longitudinal axis of the surgical suture device, wherein the proximal pivoting protrusion has a non-circular cross-section; and (b) a second suture half configured to be releasably coupled to and pivot about the proximal pivoting protrusion relative to the first suture half, wherein the second suture half includes: (i) an elongated member having: a distal portion operably deploying staples toward the anvil surface; and at least one proximal notch configured to pivotally receive the proximal pivoting protrusion of the first suture half; and (ii) a second suture half having: (i) a distal portion having a distal portion operably deploying staples toward the anvil surface; and (ii) a proximal notch having at least one proximal notch configured to pivotally receive the proximal pivoting protrusion of the first suture half; and (ii) a proximal pivoting protrusion having ... A locking member is configured to translate along the longitudinal axis of the surgical stapler between a distal locked state and a proximal unlocked state to engage and disengage the first stapler half and the second stapler half, respectively. In the distal locked state, the locking member selectively engages the proximal pivot protrusion, and in the proximal unlocked state, the locking member selectively releases the proximal pivot protrusion. A portion of the proximal pivot protrusion is configured to selectively abreast engage at least one surface of the proximal surface of at least one proximal notch or at least one surface of the distal surface of the locking member in response to the first stapler half rotating away from the second stapler half about the proximal pivot protrusion to an open state. In the open state, the first stapler half and the second stapler half present a predetermined maximum angular orientation relative to each other and remain releasably engaged together at their proximal ends.

[0163] Example 19

[0164] According to the surgical suture device of embodiment 18, the locking member includes a hook portion configured to clamp the proximal pivot protrusion against the closed end of the at least one proximal notch when in the locked state.

[0165] Example 20

[0166] According to the surgical stapler of Embodiment 19, the hook portion is configured to continuously face the proximal pivoting protrusion when in the locked state during pivoting of the first stapler half relative to the second stapler half around the proximal pivoting protrusion relative to the second stapler half around the proximal pivoting protrusion relative to the first stapler half between the clamped state and the open state of the surgical stapler.

[0167] IV. Miscellaneous

[0168] It should be understood that any one or more of the teachings, expressions, embodiments, examples, etc., described herein can be combined with any one or more of the other teachings, expressions, embodiments, examples, etc., described herein. Therefore, the foregoing teachings, expressions, embodiments, examples, etc., should not be considered in isolation from each other. Various suitable ways in which the teachings herein can be combined will be apparent to those skilled in the art. Such modifications and variations are intended to be included within the scope of the claims.

[0169] Furthermore, any one or more of the teachings, expressions, implementation schemes, and embodiments described herein may be combined with any one or more of the teachings, expressions, implementation schemes, and embodiments described in the following patents: U.S. Patent Application 10,631,866, entitled "Release Mechanism for Linear Surgical Stapler," published April 28, 2020; U.S. Publication 2019 / 0239882, entitled "Lockout Assembly for Linear Surgical Stapler," filed August 8, 2019; U.S. Publication 2019 / 0239886, entitled "Features to Align and Close Linear Surgical Stapler," filed August 8, 2019; and U.S. Publication 2019 / 0239886, entitled "Releasable Coupling Features for Proximal Portions of Linear Surgical Stapler," filed August 8, 2019. U.S. Publication No. 2019 / 0239883, entitled "Firing Lever Assembly for Linear Surgical Stapler" (filed August 8, 2019); U.S. Publication No. 2019 / 0239884, entitled "Clamping Mechanism for Linear Surgical Stapler" (filed August 8, 2019); U.S. Publication No. 2019 / 0239885, entitled "Firing System for Linear Surgical Stapler" (filed February 13, 2020); U.S. Publication No. 2020 / 0046350, entitled "Clamping Assembly for Linear Surgical Stapler" (filed February 13, 2020); U.S. Publication No. 2020 / 0046353, entitled "Clamping Assembly for Linear Surgical Stapler" (filed April 16, 2020); U.S. Publication No. 2020 / Anvil Assembly for Linear Surgical Stapler (filed April 16, 2020). U.S. Publication No. 2020 / 0113561, entitled “Stapler”; U.S. Publication No. 2020 / 0113562, entitled “Closure Assembly for Linear Surgical Stapler”, filed April 16, 2020; and / or U.S. Publication No. 2020 / 0046351, entitled “Decoupling Mechanism for Linear Surgical Stapler”, filed February 13, 2020.The disclosures of each of these applications are incorporated herein by reference.

[0170] Furthermore, 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: "Surgical Linear Cutter Wishbone Separation Mechanism with Detent" [Attorney General Reference No. END9257USNP1], filed on the same date as this application, and / or U.S. application "Separation Mechanism for Surgical Linear Cutter" [Attorney General Reference No. END9265USNP1], filed on the same date as this application. The disclosure of each of these applications is incorporated herein by reference.

[0171] It should be understood that any patent, patent publication, or other public material allegedly incorporated herein by reference, whether in whole or in part, is incorporated only to the extent that the incorporated material does not conflict with any existing definitions, statements, or other public material set forth in this disclosure. Therefore, and to the extent necessary, the disclosures expressly listed herein replace any conflicting material incorporated herein by reference. Any material, or part thereof, allegedly incorporated herein by reference that conflicts with any existing definitions, statements, or other public material set forth herein will be incorporated only to the extent that the incorporated material does not conflict with any existing public material.

[0172] The aforementioned devices can be applied to both traditional medical treatments and surgeries performed by medical professionals and robot-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.

[0173] Devices of the types described above may be designed for single-use and disposal, or they may be designed for multiple uses. In either or both cases, these types may be repaired for reuse after at least one use. Repair may include any combination of the following steps: disassembling the device, then cleaning or replacing specific parts, and subsequently reassembling. Specifically, some types of devices may be disassembled, and any combination may be used to selectively replace or remove any number of specific parts or portions of the device. While cleaning and / or replacing specific components, some types of devices may be reassembled at a repair facility or by the user prior to surgery for subsequent use. Those skilled in the art will appreciate that device repair can utilize a variety of techniques for disassembly, cleaning / replacement, and reassembly. The use of such techniques and the resulting repaired devices are within the scope of this application.

[0174] By way of example only, the types 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 radiation field that can penetrate the container, such as gamma radiation, X-rays, or high-energy electrons. The radiation kills bacteria on the device and in the container. The sterilized device can then be stored in a sterile container for later use. Any other techniques known in the art can also be used to sterilize the device, including but not limited to beta or gamma radiation, ethylene oxide, or vapor.

[0175] Various embodiments of the invention have been shown and described, and further improvements to the methods and systems described herein can be achieved by suitable modifications made by those skilled in the art without departing from the scope of the 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 essential. Therefore, the scope of the invention should be considered in accordance with the following claims and should be understood as not being limited to the details of the structures and operations shown and described in the specification and drawings.

Claims

1. A surgical suture device, comprising: (a) A first suture half, the first suture half comprising: (i) Anvil surface, the anvil surface having a plurality of nail-shaped recesses, and (ii) a proximal pivoting protrusion extending transversely relative to the longitudinal axis of the surgical stapler, wherein the proximal pivoting protrusion has a non-circular cross-section; and (b) a second suture half, the second suture half being configured to be releasably coupled to the first suture half and pivot about the proximal pivoting protrusion relative to the first suture half, wherein the second suture half includes: (i) an elongated member having: a distal portion operable to deploy a staple toward the anvil surface; and at least one proximal notch configured to pivotally receive the proximal pivoting protrusion of the first suture half; and (ii) A locking member configured to translate along the longitudinal axis of the surgical stapler between a distally locked state and a proximal unlocked state to engage and disengage the first stapler half and the second stapler half, respectively. In the distally locked state, the locking member selectively engages the proximal pivoting protrusion, and in the proximal unlocked state, the locking member selectively releases the proximal pivoting protrusion. A portion of the proximal pivot protrusion is configured to selectively frictionally engage at least one of the proximal surface of the at least one proximal notch or the distal surface of the locking member in response to the first suture half rotating away from the second suture half about the proximal pivot protrusion to an open state, wherein in the open state the first suture half and the second suture half present a predetermined maximum angular orientation relative to each other and remain releasably connected together at their proximal ends.

2. The surgical suture device according to claim 1, wherein, The locking member includes a hook portion configured to clamp the proximal pivoting protrusion against the closed port of the at least one proximal notch when in the locked state.

3. The surgical suture device according to claim 2, wherein, The hook portion is configured to continuously face the proximal pivoting protrusion when in the locked state, during pivoting of the first suture half relative to the second suture half around the proximal pivoting protrusion between the clamped state and the open state of the surgical suture.

4. The surgical suture device according to any one of claims 1-3, wherein, The second suture half also includes an elastic member configured to bias the locking member distally toward the locked state.

5. The surgical suture device according to any one of claims 1-3, wherein, The proximal pivot protrusion has a generally pear-shaped cross-section.

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