Unclamped firing lockout for linear surgical stapler

Abstract

An apparatus comprising: a first elongate member and a second elongate member that are releasably couplable together to cooperate to clamp and staple tissue; a clamping lever and a latch body that are together latchable to latch the first and second elongate members to clamp tissue; a firing assembly that is capable of severing and stapling the clamped tissue; and a lockout assembly that is capable of preventing firing of the firing assembly until the clamping lever and the latch body have successfully latched the first and second elongate members together to clamp tissue.

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 layers together near the cut ends of the tissue layers. 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 the anvil surface 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 releasably engage together and pivot relative to each other to clamp tissue positioned between the two distal jaws when the clamping levers are closed. The firing assembly of the stapler is configured to be actuated to cut the clamped layers and simultaneously drive the staples through the tissue on either side of the cut line. After the stapler is fired, 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. Figure 2 It shows Figure 1 An exploded perspective view of a straight surgical stapler, also showing the staple cartridge; Figure 3 It shows Figure 1 A perspective view of the distal end portion of the anvil half of a straight surgical suture device; Figure 4 It shows Figure 2 A perspective view of the distal end portion of the staple cartridge; Figure 5 It shows Figure 1A cross-sectional perspective view of the proximal portion of the chamber half of a linear surgical stapler, with the clamping lever in the open position, to show details of the firing and holding components of the chamber half; Figure 6 It shows Figure 5 The exploded perspective of the preserved components; Figure 7 It shows Figure 5 Another exploded perspective of the retaining component; Figure 8 It shows Figure 5 A perspective view of the firing component; Figure 9A It shows Figure 1 A side view of a straight surgical stapler, showing the stapler halves separated from each other and the clamping lever in the open position; Figure 9B It shows Figure 1 A side front view of a straight surgical stapler, showing that the proximal ends of the stapler halves are joined together to provide a stapler in a “suspended open” state when the clamping lever is in the open position; Figure 9C It shows Figure 1 A side view of a straight surgical stapler, showing that the distal portion of the stapler half has approached, such that the distal pin of the anvil half is received by the clamping lever jaws of the chamber half. Figure 9D 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; Figure 9E 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; Figure 10A It shows Figure 1 A side front view of a straight surgical stapler, showing the distal portion of the stapler half in... Figure 9C When the distal pin and the clamping lever jaws of the half-section are misaligned, they are already close to the tissue between the distal portions; Figure 10B It shows Figure 1 A side front view of a straight surgical stapler, showing the clamping lever in... Figure 9C The closure occurs when the distal pin is not aligned with the clamping lever jaws of the half-section of the compartment. Figure 11 It shows that it can be easily combined with Figure 1 Exploded perspective view of the locking assembly in a linear surgical stapler; Figure 12 It shows Figure 11A perspective view of the locking component, with some parts omitted for clarity; Figure 13A It shows the combination to Figure 1 In the linear surgical stapler Figure 11 A cross-sectional view of the locking assembly, wherein the locking assembly is in a locked configuration and Figure 5 The firing assembly is in the near-unfired position; Figure 13B It shows the combination to Figure 1 In the linear surgical stapler Figure 11 A cross-sectional view of the locking assembly, wherein the locking assembly is in an unlocked configuration and Figure 5 The firing assembly is in the near-unfired position; Figure 13C It shows the combination to Figure 1 In the linear surgical stapler Figure 11 A cross-sectional view of the locking assembly, wherein the locking assembly is in an unlocked configuration and Figure 5 The firing assembly moves to the distal side toward the firing position; Figure 14 It shows that it can be easily combined with Figure 1 A perspective view of an alternative locking body in a straight surgical stapler; Figure 15A It shows the combination to Figure 1 In the linear surgical stapler Figure 14 A cross-sectional view of the locking assembly of the locking body, wherein the locking assembly is in a locked configuration and Figure 5 The firing assembly is in the near-unfired position; Figure 15B It shows the combination to Figure 1 In the linear surgical stapler Figure 15A A cross-sectional view of the locking assembly, wherein the locking assembly is in an unlocked configuration and Figure 5 The firing assembly is in the near-unfired position; Figure 15C It shows the combination to Figure 1 In the linear surgical stapler Figure 15A A cross-sectional view of the locking assembly, wherein the locking assembly is in an unlocked configuration and Figure 5 The firing assembly moves to the distal side toward the firing position; Figure 16 It shows that it can be easily combined with Figure 1 A perspective view of an alternative locking body in a straight surgical stapler; Figure 17A It shows the combination to Figure 1 In the linear surgical stapler Figure 16A cross-sectional view of the locking assembly of the locking body, wherein the locking assembly is in a locked configuration and Figure 5 The firing assembly is in the near-unfired position; Figure 17B It shows the combination to Figure 1 In the linear surgical stapler Figure 17A A cross-sectional view of the locking assembly, wherein the locking assembly is in an unlocked configuration and Figure 5 The firing assembly is in the near-unfired position; and Figure 17C It shows the combination to Figure 1 In the linear surgical stapler Figure 17A A cross-sectional view of the locking assembly, wherein the locking assembly is in an unlocked configuration and Figure 5 The firing assembly is actuated toward the far side of the firing position.

[0005] 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 form 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

[0006] 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 illustrated 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.

[0007] For clarity of disclosure, the terms "proximal" and "distal" are defined herein in relation 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 being for illustrative purposes only and 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.

[0008] Furthermore, the terms “approximately” and “about” as used herein in relation to any numerical value or range indicate appropriate dimensional tolerances that allow the reference feature to function for the intended purposes described herein.

[0009] I. Exemplary linear surgical suture device A. Overview of Linear Surgical Staplers 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.

[0010] The chamber half (12) includes a first elongated member in the form of 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 (110) 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 (110) between the proximal and distal positions. (The following is in conjunction with...) Figure 8 The firing assembly (110) is described in more detail.

[0011] The distal jaw portion (20) of the cartridge passage (16) is configured to releasably receive the staple cartridge (140) (or "reload"). For example... Figure 4 As shown, the staple cartridge (140) includes a cartridge body (142) having an upper side defining a first suture surface in the form of a platform (156) having a plurality of staple openings (166) for receiving a plurality of staples and corresponding staple drivers.

[0012] The compartment half (12) also includes a clamping member (also referred to as a "clamping arm" or "latch lever") in the form of a clamping lever (40), which is pivotally connected to the compartment passage (16) by means of a clamping lever pivot pin (42), which is 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, which is pivotally connected to the lower portion of the compartment passage (16) by means of a pivot pin (42). A pair of opposing jaws (48) extend distally from the distal end of the lever arm (44) beside the compartment passage side flange (22). Each jaw (48) includes a curved slot (50) having a closed proximal end and an open distal end configured to receive a latching pin (68) of the anvil half (14), as described below.

[0013] The clamping lever (40) is operable to pivot relative to the storage channel (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 storage channel frame portion (18) (as described below). Figures 9A to 9C As shown), in the closed position, the proximal end (46) faces the warehouse passage frame portion (18) (as described below). Figure 9D (As shown). The actuation of the clamping lever (40) from the open position to the closed position is used to capture the opposite side ends of the latching pin (68) within the clamping lever jaw slot (50), and thereby clamp the anvil half (14) against the chamber half (12), as described below. Figures 9C to 9D 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 channel (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).

[0014] like Figure 2As best 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. The clamping lever latching member (54) can also be constructed according to the teachings of U.S. Patent No. 11,278,285, entitled “Clamping Assembly for LinearSurgical Stapler,” published March 22, 2022, the disclosure of which is incorporated herein by reference.

[0015] The anvil half (14) of the linear surgical stapler (10) includes a second elongated member in the form of 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 half pins (68, 70) are configured to facilitate engagement of the anvil half (14) with the storage half (12), as described below.

[0016] like Figure 2 and Figure 3As shown, the distal jaw portion (64) of the anvil half (14) supports the anvil plate (72), which defines a second suturing surface in the form of an anvil surface having a plurality of nail-forming recesses (74) configured to deform the legs of the nails ejected from the staple cartridge (140) when the stapler (10) is fired. The nail-forming recesses (74) of this example can be formed via an embossing process and configured to allow each nail in the staple cartridge (140) to form a three-dimensional shape, wherein the legs of each formed nail are laterally offset from each other to provide a non-planar shape for the formed nail, for example, as disclosed in U.S. Patent No. 11,229,433 entitled “Linear Surgical Stapler”, published January 25, 2022, the disclosure of which is incorporated herein by reference. The anvil channel (60), anvil plate (72), and stapling recess (74) may be formed in one or more of the manner disclosed in the following patents: U.S. Patent No. 11,229,433; U.S. Patent No. 11,045,193 entitled “Anvil Assembly for Linear Surgical Stapler”, published June 29, 2021; and / or U.S. Publication No. 2022 / 0142641 entitled “System and Method for Forming Pockets in Anvil of Surgical Stapler”, published May 12, 2022, the disclosures of which are incorporated herein by reference. For example, the distal jaw portion (64) of the anvil half (14) may be pre-formed along its length with a curvature that adapts to the deflection of the distal jaw portion (64) and the anvil plate (72) when the suture halves (12, 14) are held together by the clamping lever (40). The distal jaw portion (64) of the anvil half (14) also supports a tapered distal end member (76). In some embodiments, the distal end member (76) may extend selectively relative to the distal jaw portion (64), according to the teachings of U.S. Patent No. 11,033,266 entitled "Decoupling Mechanism for LinearSurgical Stapler," published June 15, 2021, the disclosure of which is incorporated herein by reference.

[0017] like Figure 2As shown, the linear surgical stapler (10) also includes a pair 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 storage 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 configurations, the anvil cover (78) may be coupled to the anvil channel (60) via an interaction between pins (68, 70) and one or more tabs, ribs, or other structures disposed within the interior of the anvil cover (78) and including openings, slots, keyholes, or other features configured to receive a corresponding one of the pins (68, 70). By way of example only, the cover (56, 78) may be attached using one or more of the teachings of U.S. Patent No. 11,278,285, which is incorporated herein by reference. In other forms, the cover (56, 78) may be attached to the clamping lever (40) and the anvil channel (60) in a variety of other suitable manners readily understood by one of ordinary skill in the art in accordance with the teachings herein.

[0018] like Figure 2 and Figures 5 to 7 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 (110). The retaining assembly (80) of this example includes a first movable retaining member in the form of an anvil latch member (82) and a second movable retaining member in the form of a stop member (84). The anvil latch member (82) and the stop member (84) are rotatably connected to the proximal end of the chamber passage (16) via a lateral extension pin (85) arranged proximal to the firing slot (32), and the members (82, 84) are elastically biased in opposite rotational directions by an elastic member in the form of a torsion spring (86) positioned between the members (82, 84).

[0019] The anvil latch member (82) includes a central body (88), latch fingers (90) extending upward from the central body (88), and a release button (92) extending downward from the central body (88) through the base wall of the proximal frame portion (18) of the compartment passage (16). The upper end of the latch fingers (90) tapers distally and is configured to releasably capture the proximal anvil pin (70) of the anvil half (14) using an angled latch surface (94) that covers the proximal anvil pin (70) once captured. The anvil latch member (82) also includes a pin ejection feature in the form of an angled protrusion (96) extending distally from the base portion of the latch fingers (90) and defining an ejection cam ramp (98) proximal to the latch fingers (90).

[0020] The stop member (84) of the proximal holding assembly (80) includes a generally cylindrical central body (100), a distal finger (102) extending distally from the central body (100), and a proximal hook (104) extending proximally from the central body (100). The distal finger (102) is configured to releasably engage the proximal end of the firing assembly (110) and thereby hold the firing assembly (110) in its proximal original position. The proximal hook (104) is configured to cover and capture the upper end of the clamping lever latch member (54) when the clamping lever (40) is fully closed and the firing assembly (110) translates distally from its proximal original position, thereby preventing the clamping lever (40) from opening during the firing stroke, for example, as described in more detail in U.S. Patent No. 11,278,285, which is incorporated herein by reference.

[0021] In use, with the suture halves (12, 14) joined together at their proximal ends such that the proximal anvil pin (70) is held by the anvil latch member (82), and with the clamping lever (40) in the open position, distal actuation of the lower release button (92) causes the anvil latch member (82) to rotate about the pin (85), causing the ejection cam ramp (98) to advance proximally to drive the proximal tapered notch (26) of the ejection channel (16) upwards towards the proximal anvil pin (70). The chamber half (12) of this type further includes a stationary finger gripping protrusion (106) that extends downwards from the base wall of the proximal frame portion (18) of the chamber channel (16) at a position distal to the lower release button (92) and is configured to facilitate actuation of the release button (92). Specifically, the user may apply his or her thumb to the proximal side of the release button (92) and one or more fingers to the distal side of the finger grip protrusion (106), and then squeeze the release button (92) distally toward the stationary finger grip protrusion (106) to cause the latch finger (90) to rotate out of engagement with the proximal anvil pin (70) and eject the pin (70) upward from the compartment channel (16) using the ejection cam ramp (98).

[0022] The relevant components of the retaining assembly (80) and the compartment half (12) may be constructed and operated in accordance with the teachings of one or more of the following patents: U.S. Patent No. 10,898,187 entitled “Firing System for Linear SurgicalStapler”, issued January 26, 2021; and / or U.S. Patent No. 11,033,266, which is incorporated herein by reference.

[0023] like Figure 8As shown, the firing assembly (110) of the cartridge half (12) includes a slider (112), a pair of actuators (114, 116) (or “firing knobs”) pivotally coupled to the slider (112), and a set of elongated beams (118, 122) extending distally from the slider (112). The pair of side beams (118) are coupled to the distal end of the slider (112) at their proximal ends and terminate distally in a pair of cam ramps (120). The cam ramps (120) are configured to engage the underside of a nail driver (not shown) housed in the nail cartridge (140) and actuate the nail driver (not shown) upward, thereby driving (or “firing”) nails from the nail cartridge (140) into the tissue held between the nail cartridge (140) and the anvil plate (72). The central beam (122) is connected to the side beam (118) via a bridging member (124) (or “blade block”) spaced distally from the slider (112). The central beam (122) terminates distally in a distally angled blade member (126) having a distal cutting edge (128) configured to cut tissue held between the distal portions of the suturer halves (12, 14).

[0024] Each actuator (114, 116) of the firing assembly (110) is configured to rotate relative to the slider (112) between a deployment position and a retracted position, such that only one actuator (114, 116) can be deployed at a time, for example, as disclosed in U.S. Patent No. 10,898,187, which is incorporated herein by reference above. In the deployment position, the actuators (114, 116) can be driven distally by the operator to actuate the firing assembly (110) distally through the suture (10), thereby simultaneously cutting and suturing the tissue clamped between the suture halves (12, 14).

[0025] B. Illustrative use of linear surgical sutures Figures 9A to 9E An illustrative connection of the stapler halves (12, 14) and the subsequent firing of the assembled stapler (10) during surgical procedures are shown. Figure 9A As 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 (110) is held in its proximal original position by the stop member (84) of the holding assembly (80), as described above. Figure 5 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 (140) located in the distal jaw portion (20) of the cartridge half (12). Alternatively, after the proximal ends of the stapler halves (12, 14) are joined, as described below, the tissue can be positioned above the staple cartridge (140).

[0026] like Figures 9A to 9B 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 latch finger (90) of the anvil latch member (82). This engagement forces the anvil latch member (82) to rotate elastically clockwise, thereby enabling the latch finger (90) to capture the anvil pin (70), and thus releasably connecting the proximal ends of the stapler halves (12, 14) together, as shown. Figure 9B As shown. While the clamping lever (40) remains in the position as... Figure 9B In the open position shown, the suture (10) is set to a "suspended open" state, allowing the suture (10) to be held by one hand via the anvil half (14) while the cisternives half (12) remains connected to the anvil half (14). Figure 9C 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.

[0027] like Figure 9D As shown, the clamping lever (40) closes to abut against the proximal end of the closed 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 suture surface defined by the cartridge (140) and the anvil plate (72). The tissue gap column (162) of the cartridge (140) defines a small transverse gap between the cartridge (140) and the anvil plate (72), thus containing the tissue therein with a predetermined degree of tissue compression. Figure 9A and Figure 9B As shown, the interstitial column (162) is located at the distal end of the staple cartridge (140) and is configured to contact the distal end of the anvil plate (72) when the stapler (10) is in the fully clamped state shown in FIG. 19D. In response to the clamping lever (40) reaching the fully closed position, the clamping lever latch member (54) is rotatable to capture the proximal end of the base wall of the cartridge channel (16), and thereby taking a latched state in which the clamping lever latch member (54) holds the clamping lever (40) in the closed position.

[0028] like Figure 9EAs shown, when fully clamped, the stapler (10) can be fired by driving the deployed actuators (114, 116) of the firing assembly (110) distally along the proximal frame portion (18) of the cartridge half (12). This action causes the elongated beams (118, 122) of the firing assembly (110) to translate distally through the corresponding channels formed in the staple cartridge (140), thereby firing staples into the clamped tissue via the cam ramp (120) and staple driver (not shown), while simultaneously cutting the clamped tissue using the blade member (126). After the firing stroke is completed, the firing assembly (110) returns to its proximal original position via the actuators (114, 116). 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. Then, the release button (92) of the retaining assembly (80) can be pressed to release the anvil half (14) from the chamber half (12), so that the suture halves (12, 14) can separate from each other, thereby releasing the newly sutured and cut tissue. It should be understood that in some types, the suture (10) may include additional features that facilitate the disengagement of the suture halves (12, 14), for example, as disclosed in U.S. Patent No. 11,033,266, which is incorporated herein by reference above.

[0029] D. A linear surgical suture device with a locking mechanism As described above, the anvil latch pin (68) of the anvil half (14) is received within the curved slot (50) of the jaws (48), such that the clamping lever (40) can be released from the open position (see Figure 9C ) Towards the closed position (see Figure 9D The device pivots to grip the anvil half (14) toward the staple cartridge half (12), thereby grasping and holding the tissue. Furthermore, the grasped tissue located between the suture surfaces of the staple cartridge (140) and the anvil plate (72) can be cut and sutured.

[0030] like Figures 10A to 10BAs shown, when the clamping lever (40) pivots from the open position toward the closed position and the anvil latch pin (68) is not received within the curved slot (50) of the jaws (48), the tissue located between the staple cartridge (140) and the anvil plate (72) may never be properly clamped or gripped, leaving an undesirable large gap distance (d2). If the gap distance (d2) is too large, the staples fired from the staple cartridge toward the anvil plate (72) may not be properly formed, resulting in either poorly formed staples or “open” staples, both of which may fail to properly engage the staple forming recesses (74) of the anvil plate (72). Therefore, it may be desirable to prevent actuation of the firing assembly (110) unless the tissue is properly clamped by the clamping lever (40) in the closed position, while the anvil latch pin (68) is properly received within the curved slot (50), as Figure 9D As shown.

[0031] Figures 11 to 12 An exemplary locking mechanism (200) is shown, which can be easily integrated into a straight stitcher (10) to form Figures 13A to 13C The modified straight stitcher (10') is shown. As will be described in more detail below, the locking mechanism (200) is configured to suppress distal actuation of the firing assembly (110) until the distal jaw portion (64) of the anvil half (14) is in a proper clamping position relative to the chamber half (12), which indicates that the clamping lever (40) is both in the closed position and properly engaged with the latch pin (68) via the curved slot (50) of the jaws (48) (see Figure 9D Therefore, if the anvil half (14) is in the open position (see...) Figure 9C If the locking mechanism (200) then inhibits the distal actuation of the firing assembly (110), the locking mechanism (200) will suppress the distal actuation of the firing assembly (110). Furthermore, if the anvil half (14) is pivoted toward the chamber half (12) to a position where the user believes the anvil half (14) is clamped but the latch pin (68) is not properly accommodated within the curved slot (500) of the jaws (48) (see...) Figure 10B If the locking mechanism (200) still suppresses the distal actuation of the firing assembly (110), then the locking mechanism (200) will still suppress the distal actuation of the firing assembly (110).

[0032] The locking mechanism (200) includes a housing (202), a biasing spring (210), and a locking body (212). The housing (202) includes a plurality of coupling bosses (204). The coupling bosses (204) are configured to attach the housing (202) to a suitable portion of the proximal frame portion (18) of the compartment half (12). For example, the coupling bosses (204) may be configured to attach the housing (202) to an upright side flange (22) of the proximal frame portion (18). Thus, the housing (202) serves as the mechanical basis for the locking mechanism (200) to the compartment half (12). Although coupling bosses (204) are used in the present example, the housing (202) may be securely attached to the proximal frame portion (18) via any suitable means, as will be apparent to those skilled in the art in light of the teachings herein. Alternatively, the housing (202) may be an integral part of the proximal frame portion (18).

[0033] like Figures 13A to 13C As shown, the housing (202) is attached to a suitable portion of the proximal frame portion (18) such that the locking body (212) is adjacent to the slider (112) of the firing assembly (110) in the pre-firing position. The housing (202) defines an elongated slot (206) that pivotally receives a portion of the locking body (212). The locking body (212) is pivotally attached to the housing (202) via a pivot pin (208) extending through a corresponding connecting boss (204) of the housing (202) and a pivot hole (220) defined by the locking body (212).

[0034] As will be described in more detail below, the locking body (212) is configured to respond to the anvil half (14) reaching a suitable clamping position associated with the latch pin (68) and relative to the housing (202) around the pivot pin (208) in a locking configuration (see Figure 13A ) and unlocked configuration (see Figures 13B to 13C Pivoting between the lever (40) and the clamping lever (48), the latching pin is received within the curved slot (50) of the jaws (48) when the clamping lever (40) is in the closed position. Furthermore, if the anvil half (14) remains in the open position (similar to...), Figure 9C ), or if the anvil half (14) pivots toward the bin half (12) and the latch pin (68) is not properly accommodated in the curved slot (50) of the jaws (48) (similar to Figure 10B Then the locking body (212) is configured to remain in the locking configuration.

[0035] The spring (210) is housed within an elongated slot (206) in the housing (202). The spring (210) is inserted between a portion of the locking body (212) and the housing (202) to bias the locking body (212) relative to the housing (202) into a locking configuration (see...). Figure 13A The spring (210) is configured to compress in response to engagement between the locking body (212) and the top surface (65) of the elongated anvil channel (60); thereby pivoting the locking body (212) from a locked configuration to an unlocked configuration (see...). Figures 13B to 13C ).

[0036] The locking body (212) includes an elongated pivot arm (214) extending between an anvil engagement protrusion (216) and a slider engagement surface (218). The elongated pivot arm (214) defines a pivot bore (220). The elongated pivot arm (214) also defines a spring recess (215) sized to receive a spring (210). The spring recess (215) is inserted between the pivot bore (220) and the slider engagement surface (218) such that the spring (210) engages a portion of the elongated arm (214) located between the pivot bore (220) and the slider engagement surface (218). Specifically, the spring (210) biases the portion of the elongated pivot arm (214) near the pivot hole (220) away from the housing (202); and also biases the portion of the elongated pivot arm (214) far from the pivot hole (220) toward the anvil half (12).

[0037] The slider engagement surface (218) is configured to abut or otherwise inhibit distal actuation of the slider (112) when the locking body (212) is in the locked configuration. Therefore, the slider engagement protrusion (218) is configured to abut or otherwise inhibit distal movement of the slider (112) when the locking body (212) is in the locked configuration. In the unlocked configuration, the slider engagement surface (218) is removed from the firing path of the slider (112), thus allowing the slider (112) to actuate distally as described herein.

[0038] The anvil engagement protrusion (216) is configured to contact a portion of the anvil channel (60) in response to the anvil half (14) reaching a suitable clamping position associated with the latch pin (68), which is received within a curved slot (50) of the jaws (48) when the clamping lever (40) is in the closed position. For example, the anvil engagement protrusion (216) may be configured to contact the top surface (65) of the elongated anvil channel (60). As will be described in more detail below, engagement between the anvil engagement protrusion (216) and the anvil half (14) drives the locking body (212) from a locked configuration to an unlocked configuration, thereby allowing the firing assembly (110) to be distally actuated according to the description herein.

[0039] Figures 13A to 13C An illustrative use of the linear surgical stapler (10') and the locking assembly (200) is shown. Figure 13AAt the moment shown, the anvil half (14) is not properly clamped by engagement with the clamping lever (40) and the latching pin (68), so that the locking mechanism (200) is in the locked configuration. In this case, the anvil half (14) can be in the open position (similar to...). Figure 9C ); or the anvil half (14) may be positioned where the user believes it is clamped but the latching pin (68) is not properly accommodated within the curved slot (50) of the jaws (48) (similar to Figure 10B ).

[0040] As described above, the spring (210) biases the locking body (212) into a locked configuration. In the locked configuration, the slider engagement surface (218) is directly adjacent to the distal surface of the slider (112), thus preventing distal actuation of the slider (112). Therefore, if a user attempts to actuate the firing assembly (110) as described herein, the engagement between the slider (112) and the slider engagement surface (218) will prevent the user from doing so, thereby indicating that the anvil half (14) is not properly clamped as described herein.

[0041] Figure 13B The anvil half (14) is shown in a properly clamped position relative to the chamber half (12), such that the latch pin (68) is properly accommodated within the curved slot (50) of the jaws (48) when the clamping lever (40) is in the closed position. With the anvil half (14) in the properly clamped position, the top surface (65) of the elongated anvil channel (60) drives the anvil engagement protrusion (216) downward, thereby pivoting the locking body (212) into an unlocked configuration and compressing the spring (210). In the unlocked configuration, the slider engagement surface (218) pivots out of the firing path of the slider (112). In the current example, the slider engagement surface (218) pivots within the range of the elongated slot (206).

[0042] like Figure 13C As shown, when the slider engagement surface (218) pivots out of the firing path of the slider (112), the user can actuate the firing assembly (110) distally as described herein to suture and cut tissue as described herein. Once the firing assembly (110) retracts to the pre-firing position (similar to...), Figure 13B (as shown in the image), the user can pivot the clamping lever (40) to the open position to release the tissue. Once the clamping lever (40) is in the closed position (similar to the position shown in the image), the user can pivot the clamping lever (40) to the open position to release the tissue. Figure 9D Pivot to the open position (similar to) Figure 9C This unlocks the anvil half (14) from the chamber half (12), causing the top surface (65) of the elongated anvil channel (60) to disengage from the anvil engagement protrusion (216), allowing the spring (210) to pivot the locking body (212) back to its original position. Figure 13AThe locking configuration shown.

[0043] Figure 14 Another exemplary locking mechanism (230) is shown, which can be easily incorporated into the straight stitcher (10) to form Figures 15A to 15C The modified straight stitcher (10'') is shown. The locking mechanism (230) is configured to operate in a manner substantially similar to the locking mechanism (200) described above, with the differences detailed herein. Thus, the locking mechanism (230) is configured to suppress distal actuation of the firing assembly (110) until the distal jaw portion (64) of the anvil half (14) is in a proper clamping position relative to the chamber half (12), indicating that the clamping lever (40) is both in the closed position and properly engaged with the latch pin (68) via the curved slot (50) of the jaws (48) (see [link to documentation]). Figure 9D ).

[0044] The locking mechanism (230) includes a pivoting locking body (232) having an anvil engagement protrusion (236) and a slider engagement protrusion (238). The locking body (232) is pivotally attached to a lateral extension pin (85) of the retaining assembly (80). As will be described in more detail below, the pivoting locking body (232) is configured to be able to revolve around the lateral extension pin (85) (see...). Figure 6 In locked configuration (see) Figure 15A ) and unlocked configuration (see Figures 15B to 15C Pivot between ) . In addition, the locking body (232) also pivots with the torsion spring (86) of the retaining assembly (80) (see Figure 6 The locking body (232) is engaged such that the torsion spring (86) biases the locking body (232) toward the locking configuration. Although in the present example the locking body (232) is pivotally attached to the lateral extension pin (85) and biased by the torsion spring (86), the locking body (232) may be pivotally attached to and biased via any other suitable component, as will be apparent to those skilled in the art in light of the teachings herein.

[0045] like Figure 15A As shown, the slider engagement protrusion (238) is configured to extend within the opening (113) defined by the slider (112) in the locked configuration. Therefore, the slider engagement protrusion (238) is configured to abut against a portion of the defined opening (113) of the slider when the pivot locking body (232) is in the locked configuration to inhibit distal actuation of the slider (112). In the unlocked configuration, the slider engagement protrusion (238) is removed from the firing path of the slider (112), thus allowing the slider (112) to actuate distally as described herein.

[0046] Similar to the anvil engagement protrusion (216) described above, the anvil engagement protrusion (236) of the locking body (232) is configured to contact a portion of the anvil channel (60) in response to the anvil half (14) reaching a suitable clamping position associated with the latch pin (68), which is received within a curved slot (50) of the jaws (48) when the clamping lever (40) is in the closed position. For example, the anvil engagement protrusion (236) may be configured to contact the proximal frame portion (62) of the elongated anvil channel (60). Engagement between the anvil engagement protrusion (236) and the anvil half (14) causes the locking body (232) to pivot from a locked configuration to an unlocked configuration about a lateral extension pin (85), thereby allowing the firing assembly (110) to be distally actuated as described herein.

[0047] Figures 15A to 15C An illustrative use of the linear surgical stapler (10'') and the locking assembly (230) is shown. Figure 15A At the moment shown, the anvil half (14) is not properly clamped by engagement with the clamping lever (40) and the latching pin (68), so that the locking mechanism (230) is in the locked configuration. In this case, the anvil half (14) can be in the open position (similar to...). Figure 9C ); or the anvil half (14) may be positioned where the user believes it is clamped but the latching pin (68) is not properly accommodated within the curved slot (50) of the jaws (48) (similar to Figure 10B ).

[0048] As described above, the torsion spring (86) of the retaining assembly (80) biases the pivot locking body (232) into a locked configuration. In the locked configuration, the slider engagement protrusion (238) is received within the opening (113) defined by the slider (112), thus preventing distal actuation of the slider (112). Therefore, if a user attempts to actuate the firing assembly (110) according to the description herein, the engagement between the portion of the defining opening (113) of the slider (112) and the slider engagement protrusion (238) will prevent the user from doing so, thereby indicating that the anvil half (14) is not properly clamped according to the description herein.

[0049] Figure 15BThe anvil half (14) is shown in a properly clamped position relative to the chamber half (12), such that the latch pin (68) is properly accommodated within the curved slot (50) of the jaws (48) when the clamping lever (40) is in the closed position. With the anvil half (14) in the properly clamped position, the proximal frame portion (62) of the elongated anvil channel (60) drives the anvil engagement protrusion (236) downward, thereby causing the locking body (232) to pivot about the lateral extension pin (85) into an unlocked configuration and compress the spring (86). In the unlocked configuration, the slider engagement protrusion (238) pivots out of both the opening (113) and the firing path of the slider (112).

[0050] like Figure 15C As shown, with both the slider engagement protrusion (238) pivoting out of the opening (113) and the firing path of the slider (112), the user can actuate the firing assembly (110) distally as described herein to suture and cut tissue as described herein. Once the firing assembly (110) retracts to the pre-firing position (similar to...), Figure 15B (as shown in the image), the user can pivot the clamping lever (40) to the open position to release the tissue. Once the clamping lever (40) is in the closed position (similar to the position shown in the image), the user can pivot the clamping lever (40) to the open position to release the tissue. Figure 9D Pivot to the open position (similar to) Figure 9C This unlocks the anvil half (14) and the chamber half (12), causing the proximal frame portion (62) of the elongated anvil channel (60) to disengage from the anvil engagement protrusion (236), allowing the spring (86) to pivot the locking body (232) back to its original position. Figure 15A The locking configuration shown.

[0051] Figure 16 Another exemplary locking mechanism (250) is shown, which can be easily incorporated into a straight stitcher (10) to form Figures 17A to 17C The modified straight stitcher (10''') is shown. The locking mechanism (250) is configured to operate in a manner substantially similar to the locking mechanisms (200, 230) described above, with the differences detailed herein. Thus, the locking mechanism (250) is configured to suppress distal actuation of the firing assembly (110) until the distal jaw portion (64) of the anvil half (14) is in a proper clamping position relative to the chamber half (12), indicating that the clamping lever (40) is both in the closed position and properly engaged with the latch pin (68) via the curved slot (50) of the jaws (48) (see [link to documentation]). Figure 9D ).

[0052] The locking mechanism (250) includes a pivoting locking body (252) with an elongated arm (253), an anvil engagement protrusion (256), a slider engagement protrusion (258), a leaf spring (255), and a rotation stop (260). The pivoting locking body (252) is pivotally connected to the proximal frame portion (18) via a pivot pin (254). As will be described in more detail below, the pivoting locking body (252) is configured to be able to lock around the pin (254) in a locking configuration (see... Figure 17A ) and unlocked configuration (see Figures 17B to 17C It pivots between ).

[0053] The leaf spring (255) and the rotation stop (260) together define a U-shaped opening (262), the size of which is designed to receive the cylindrical portion (89) of the central body (88) (see...). Figure 6 The leaf spring (255) engages the cylindrical portion (89) of the central body (88) to bias the pivot locking body (252) toward the locking configuration (see...). Figure 17A The rotary stop (260) is configured to be able to rotate when the rotary stop is engaged with the rotary stop. Figures 17A to 17C When viewed from the perspective of [the relevant authority], the pivot locking body (252) is prevented from rotating excessively in the clockwise direction. In other words, the rotation stop (260) is never locked in the configuration according to the teachings of this document (see [link to document]). Figure 17B Towards locked configuration (see) Figure 17A During the transition, the pivot locking body (252) is prevented from rotating excessively beyond the locking configuration.

[0054] The slider engagement protrusion (258) is located at the distal end of the slender arm (253). For example... Figure 17A As shown, the slider engagement protrusion (258) is configured to extend in the locked configuration to a position adjacent directly to the distally facing surface of the pre-firing slider (112). Therefore, the slider engagement protrusion (258) is configured to abut against a portion of the slider when the pivot locking body (252) is in the locked configuration to inhibit distal actuation of the slider (112). In the unlocked configuration, the slider engagement protrusion (258) is removed from the firing path of the slider (112), thus allowing the slider (112) to actuate distally as described herein.

[0055] Similar to the anvil engagement protrusions (216, 236) described above, the anvil engagement protrusion (266) of the locking body (252) is configured to contact a portion of the anvil channel (60) in response to the anvil half (14) reaching a suitable clamping position associated with the latch pin (68), which is received within a curved slot (50) of the jaws (48) when the clamping lever (40) is in the closed position. For example, the anvil engagement protrusion (256) of the present example is configured to contact the internal engagement surface (67) of the elongated anvil channel (60). The engagement between the anvil engagement protrusion (256) and the internal engagement surface (67) of the anvil half (14) causes the locking body (252) to pivot from a locked configuration to an unlocked configuration about the pin (254), thereby allowing the firing assembly (110) to be distally actuated as described herein.

[0056] Figures 17A to 17C An illustrative use of a linear surgical stapler (10''') and a locking mechanism (250) is shown. Figure 17A At the moment shown, the anvil half (14) is not properly clamped by engagement with the clamping lever (40) and the latching pin (68), such that the locking mechanism (250) is in the locked configuration. In this case, the anvil half (14) can be in the open position (similar to...). Figure 9C ); or the anvil half (14) may be positioned where the user believes it is clamped but the latching pin (68) is not properly accommodated within the curved slot (50) of the jaws (48) (similar to Figure 10B ).

[0057] As described above, the leaf spring (255) engages the cylindrical portion (89) of the central body (88) of the retaining assembly (80) to bias the pivot locking body (252) into a locked configuration. In the locked configuration, the slider engagement protrusion (258) is positioned adjacent to the distal surface of the slider (112) within the firing path of the slider (112), thus preventing distal actuation of the slider (112). Therefore, if a user attempts to actuate the firing assembly (110) according to the description herein, the engagement between the slider (112) and the slider engagement protrusion (258) will prevent the user from doing so, thereby indicating that the anvil half (14) is not properly clamped according to the description herein.

[0058] Figure 17BThe anvil half (14) is shown in a properly clamped position relative to the chamber half (12), such that the latch pin (68) is properly accommodated within the curved slot (50) of the jaws (48) when the clamping lever (40) is in the closed position. With the anvil half (14) in the properly clamped position, the internal engagement surface (67) of the elongated anvil channel (60) drives the anvil engagement protrusion (256) downward, thereby causing the locking body (252) to pivot about the pin (254) into an unlocked configuration, thereby deflecting the leaf spring (255). In the unlocked configuration, the slider engagement protrusion (258) pivots out of the firing path of the slider (112).

[0059] like Figure 17C As shown, when the slider engagement protrusion (258) pivots out of the firing path of the slider (112), the user can actuate the firing assembly (110) distally as described herein to suture and cut tissue as described herein. Once the firing assembly (110) retracts to the pre-firing position (similar to...), Figure 17B (as shown in the image), the user can pivot the clamping lever (40) to the open position to release the tissue. Once the clamping lever (40) is in the closed position (similar to the position shown in the image), the user can pivot the clamping lever (40) to the open position to release the tissue. Figure 9D Pivot to the open position (similar to) Figure 9C This unlocks the anvil half (14) and the chamber half (12), causing the internal engagement surface (67) of the elongated anvil channel (60) to disengage from the anvil engagement protrusion (256), allowing the leaf spring (255) to pivot the locking body (252) back to its original position. Figure 17A The locking configuration is shown. The rotation stop (260) also engages the cylindrical portion (89) of the central body (88) to suppress excessive rotation of the pivot locking body (252).

[0060] II. Exemplary Combinations 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 by the inventor or a successor with an interest in the inventor 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.

[0061] Example 1 An apparatus comprising: (a) a first elongated member having a first distal portion configured to provide a first suture surface; (b) a second elongated member having a second distal portion configured to provide a second suture surface, wherein the first elongated member and the second elongated member are configured to be releasably coupled together such that the first suture surface and the second suture surface cooperate to clamp tissue and suture the tissue using a plurality of staples; (c) a clamping lever coupled to the first elongated member, wherein the clamping lever is configured to be actuated between an open position and a closed position; and (d) a latching body attached to the second elongated member, wherein the clamping lever is configured to engage the latching body when actuated from the open position to the closed position to clamp the first elongated member and the second elongated member. The second elongated member is driven from an unclamping configuration to a clamping configuration; (e) a firing assembly, wherein the firing assembly is actuable from its original position to fire the pin into the clamped tissue; and (f) a locking body biased toward a locked configuration and configured to be actuated to an unlocked configuration, wherein the locking body is configured to inhibit actuation of the firing assembly away from the original position in the locked configuration, wherein the locking body is configured to allow actuation of the firing assembly away from the original position in the unlocked configuration, wherein the locking body is configured to be actuated to the unlocked configuration in response to the clamping lever being actuated to the closed position when engaged with the latch body, and wherein the locking body is configured to remain in the locked configuration in response to the clamping lever being actuated to the closed position when disengaged from the latch body.

[0062] Example 2 According to the device of embodiment 1, the locking body is pivotally connected to the first elongated member via a pin.

[0063] Example 3 According to the device of embodiment 2, the locking body includes a locking protrusion and a rotating protrusion, wherein the locking protrusion is configured to suppress the firing assembly from actuating away from the original position in the locked configuration, and wherein the rotating protrusion is configured to engage the second elongated member to thereby pivot the locking body into the unlocked configuration.

[0064] Example 4 The device according to embodiment 3 further includes a spring that biases the locking body into the locking configuration.

[0065] Example 5 According to the device of embodiment 4, the spring includes a compression spring that is inserted between the locking body and the first elongated member.

[0066] Example 6 According to the device of embodiment 4, the spring includes a torsion spring disposed around the pin.

[0067] Example 7 According to the device of embodiment 4, the spring includes a leaf spring that is integrated into the locking body.

[0068] Example 8 According to the device of embodiment 7, the leaf spring extends proximally from the rotating protrusion.

[0069] Example 9 According to the device of embodiment 8, the locking body further includes a rotation stop, wherein the leaf spring and the rotation stop define an opening for receiving a portion of the first elongated member, wherein the leaf spring is configured to engage the portion of the first elongated member to bias the locking body into the locking configuration.

[0070] Example 10 According to the device of embodiment 9, the rotation stop is configured to engage a portion of the first elongated member to suppress excessive rotation of the locking body.

[0071] Example 11 According to any one or more of the foregoing embodiments, the firing assembly includes a slider housed within the first elongated member, wherein the locking body is configured to directly engage the slider in the locking configuration.

[0072] Example 12 According to the device of embodiment 11, the first elongated member includes a bin channel, and the second elongated member includes an anvil channel.

[0073] Example 13 The device according to any one or more of Embodiments 11 or 12, wherein the slider defines an opening, and wherein the locking body includes a protrusion configured to engage within the opening in the locking configuration.

[0074] Example 14 According to any one or more of the foregoing embodiments, the first elongated member and the second elongated member are configured to be releasably connected at their proximal ends.

[0075] Example 15 According to any one or more of the devices described in the foregoing embodiments, the clamping lever is pivotally connected to the first elongated body.

[0076] Example 16 An apparatus comprising: (a) a first elongated member having a distal portion configured to provide a first suture surface; (b) a second elongated member having a distal portion configured to provide a second suture surface, the second elongated member further comprising a latch pin, wherein the first elongated member and the second elongated member are configured to be releasably coupled together at proximal ends of the first elongated member and the second elongated member, such that the first suture surface and the second suture surface cooperate to clamp tissue and suture the tissue using a plurality of staples; and (c) a clamping member pivotally coupled to the first elongated member, wherein the clamping member engages the latch pin. The locking pin is capable of moving from an open position to a closed position relative to the first elongated member and the second elongated member, driving the first elongated member and the second elongated member from an unclamped configuration to a clamping configuration; and (d) a locking body configured to inhibit tissue suturing in a biased locking configuration and allow tissue suturing in an unlocked configuration, wherein the locking body is configured to transition between the biased locking configuration and the unlocked configuration in response to the clamping member reaching the closed position when engaged with the latch pin, wherein the locking body is configured to remain in the biased locking configuration in response to the clamping member reaching the closed position when disengaged from the latch pin.

[0077] Example 17 According to the device of embodiment 16, the locking body is pivotally attached to the first elongated member via a pin.

[0078] Example 18 The device according to embodiment 16 or 17 further includes a firing assembly associated with the first elongated member, wherein the firing assembly is configured to be actuated distally along the first elongated member to suture tissue.

[0079] Example 19 According to the device of embodiment 18, the locking body is configured to directly engage the firing block of the firing assembly in the locking configuration.

[0080] Example 20 An apparatus comprising: (a) a storage compartment having a first distal portion configured to provide a first suture surface; (b) an anvil channel having a second distal portion configured to provide a second suture surface, wherein the storage compartment and the anvil channel are configured to be releasably coupled together such that the first suture surface and the second suture surface cooperate to clamp tissue and suture the tissue using a plurality of staples; (c) a clamping lever coupled to the storage compartment, wherein the clamping lever is configured to be actuated between an open position and a closed position; and (d) an anvil latch pin attached to the anvil channel, wherein the clamping lever is configured to be actuated from the open position to the closed position. (e) Engages the anvil latch pin to drive the compartment channel and the anvil channel from an unclamped configuration to a clamping configuration; and (d) a firing assembly capable of being actuated from its original position to fire the pin into the clamped tissue; and (e) a locking body configured to inhibit suturing of the tissue in a bias-locked configuration and allow suturing of the tissue in an unlocked configuration, wherein the locking body is configured to switch between the bias-locked configuration and the unlocked configuration in response to the clamping lever reaching the closed position when engaged with the anvil latch pin, and wherein the locking body is configured to remain in the bias-locked configuration in response to the clamping lever reaching the closed position when disengaged from the anvil latch pin.

[0081] III. Miscellaneous It should be understood that any or more of the teachings, expressions, embodiments, examples, etc., described herein can be combined with any or more of the other teachings, expressions, embodiments, examples, etc., described herein. Therefore, the aforementioned 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.

[0082] Furthermore, any one or more of the teachings disclosed herein may be combined with any one or more of the teachings disclosed in the following patents: U.S. Patent No. 10,631,866, entitled "Release Mechanism for Linear Surgical Stapler," published April 28, 2020; U.S. Patent No. 10,667,818, entitled "Lockout Assembly for Linear Surgical Stapler," published June 2, 2020; U.S. Patent No. 10,932,781, entitled "Features to Align and Close Linear Surgical Stapler," published March 2, 2021; U.S. Patent No. 10,898,197, entitled "Releasable Coupling Features for Proximal Portions of Linear Surgical Stapler," published January 26, 2021; and U.S. Patent No. 10,898,197, entitled "Firing Lever Assembly for Linear Surgical Stapler," published December 29, 2020. U.S. Patent No. 10,874,398 entitled “Stapler”; U.S. Patent No. 10,687,819 entitled “Clamping Mechanism for Linear Surgical Stapler”, published June 23, 2020; U.S. Patent No. 10,898,187 entitled “Firing System for Linear Surgical Stapler”, published January 26, 2021; U.S. Patent No. 11,033,266 entitled “Decoupling Mechanism for Linear Surgical Stapler”, published June 15, 2021; U.S. Patent No. 11,045,193 entitled “Anvil Assembly for Linear Surgical Stapler”, published June 29, 2021; and U.S. Patent No. 11,045,193 entitled “Closure Assembly for Linear Surgical Stapler”, published February 2, 2021. U.S. Patent No. 10,905,419 for “Stapler”; U.S. Patent No. 11,278,285, issued on March 22, 2022, entitled “Clamping Assembly for LinearSurgical Stapler”.U.S. Patent No. 11,229,433, entitled "LinearSurgical Stapler," published January 25, 2022; U.S. Publication No. 2022 / 0142641, entitled "System and Method for Forming Pockets in Anvil of Surgical Stapler," published May 12, 2022; U.S. Patent No. 11,224,425, entitled "Surgical Linear Cutter Wishbone Separation Mechanism with Detent," published January 18, 2022; U.S. Patent No. 11,219,454, entitled "Pin Trap Mechanism for Surgical Linear Cutter," published January 11, 2022; and U.S. Patent No. 11,219,454, entitled "Separation Mechanism for Surgical Linear Cutter," published December 2, 2021. U.S. Patent Application No. 2021 / 0369272 entitled "Cutter"; U.S. Patent Application No. 17 / 489,879 entitled "Lockout Feature for Linear Surgical Stapler Cartridge" filed September 30, 2021; U.S. Patent Application No. 29 / 842,580 entitled "Staple Cartridge for Linear Surgical Stapler" filed June 16, 2022; and / or U.S. Patent Application No. 29 / 842,581 entitled "Linear Surgical Stapler" filed June 16, 2022. The disclosure of each of these references is incorporated herein by reference in its entirety.

[0083] 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 the existing definitions, statements, or other public materials listed 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 but conflicting with the existing definitions, statements, or other public materials listed herein, will be incorporated only to the extent that the incorporated material does not conflict with the existing public materials.

[0084] 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). ™ system.

[0085] 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.

[0086] 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 capable of penetrating 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.

[0087] 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. An apparatus comprising: (a) A first elongated member having a first distal portion configured to provide a first stitching surface; (b) A second elongated member having a second distal portion configured to provide a second suture surface, wherein the first elongated member and the second elongated member are configured to be releasably coupled together such that the first suture surface and the second suture surface cooperate to clamp tissue and suture tissue using a plurality of staples. (c) A clamping lever connected to the first elongated member, wherein the clamping lever is configured to be actuated between an open position and a closed position; (d) A latch body attached to the second elongated member, wherein the clamping lever is configured to engage the latch body when actuated from the open position to the closed position to drive the first elongated member and the second elongated member from an unclamped configuration to a clamped configuration; (e) A firing assembly, wherein the firing assembly is actuable from its original position to fire the nail into the held tissue; and (f) A locking body, which is biased toward a locked configuration and configured to be actuated to an unlocked configuration. The locking body is configured to prevent the firing assembly from moving away from its original position during the locking configuration. The locking body is configured to allow the firing assembly to be actuated away from its original position in the unlocked configuration. The locking body is configured to be actuated into the unlocked configuration in response to the clamping lever being actuated to the closed position when engaged with the latch body. The locking body is configured to remain in the locking configuration in response to the clamping lever being actuated to the closed position when disengaged from the latch body.

2. The device according to claim 1, wherein, The locking body is pivotally connected to the first elongated member via a pin.

3. The device according to claim 2, wherein, The locking body includes a locking protrusion and a rotating protrusion, wherein the locking protrusion is configured to suppress the firing assembly from actuating away from the original position in the locked configuration, and wherein the rotating protrusion is configured to engage the second elongated member to thereby pivot the locking body into the unlocked configuration.

4. The device according to any of the preceding claims further includes a spring that biases the locking body into the locking configuration.

5. The device according to claim 4, wherein, The spring includes a compression spring, which is inserted between the locking body and the first elongated member.

6. The device according to claim 4, wherein, The spring includes a torsion spring disposed around the pin.

7. The device according to claim 4, wherein, The spring includes a leaf spring, which is integrated into the locking body.

8. The device according to claim 7, wherein, The leaf spring extends proximally from the rotating protrusion.

9. The device according to claim 7 or claim 8, wherein, The locking body further includes a rotation stop, wherein the leaf spring and the rotation stop define an opening for receiving a portion of the first elongated member, wherein the leaf spring is configured to engage the portion of the first elongated member to bias the locking body into the locking configuration.

10. The device according to claim 9, wherein, The rotation stop is configured to engage a portion of the first elongated member to suppress excessive rotation of the locking body.

11. The device according to any of the preceding claims, wherein, The firing assembly includes a slider housed within the first elongated member, wherein the locking body is configured to directly engage the slider in the locking configuration.

12. The device according to any of the preceding claims, wherein, The first elongated member includes a storage channel, wherein the second elongated member includes an anvil channel.

13. The device according to claim 11, wherein, The slider defines an opening, wherein the locking body includes a protrusion configured to engage within the opening in the locking configuration.

14. The device according to any of the preceding claims, wherein, The first elongated member and the second elongated member are configured to be releasably connected at their proximal ends.

15. The device according to any of the preceding claims, wherein, The clamping lever is pivotally connected to the first elongated body.

16. An apparatus comprising: (a) A first elongated member having a distal portion configured to provide a first stitching surface; (b) A second elongated member having a distal portion configured to provide a second suture surface, the second elongated member further comprising a latching pin, wherein the first elongated member and the second elongated member are configured to be releasably coupled together at their proximal ends, such that the first suture surface and the second suture surface cooperate to clamp tissue and suture tissue using a plurality of staples. (c) A clamping member pivotally coupled to the first elongated member, wherein the clamping member, when engaged with the latch pin, is movable relative to the first elongated member and the second elongated member from an open position to a closed position, driving the first elongated member and the second elongated member from an unclamped configuration to a clamped configuration; and (d) A locking body configured to inhibit tissue suturing in a bias-locked configuration and allow tissue suturing in an unlocked configuration, wherein the locking body is configured to transition between the bias-locked configuration and the unlocked configuration in response to the clamping member reaching the closed position when engaged with the latch pin, wherein the locking body is configured to remain in the bias-locked configuration in response to the clamping member reaching the closed position when disengaged from the latch pin.

17. The device according to claim 16, wherein, The locking body is pivotally attached to the first elongated member via a pin.

18. The device of claim 16 or claim 17, further comprising a firing assembly associated with the first elongated member, wherein, The firing assembly is configured to be actuated distally along the first elongated member in order to suture tissue.

19. The device according to any one of claims 16 to 18, wherein, The locking body is configured to directly engage the firing block of the firing assembly in the locking configuration.

20. An apparatus comprising: (a) A storage channel having a first distal portion configured to provide a first suture surface; (b) Anvil channel having a second distal portion configured to provide a second suture surface, wherein the chamber channel and the anvil channel are configured to be releasably coupled together such that the first suture surface and the second suture surface cooperate to hold tissue and suture tissue using a plurality of staples; (c) A clamping lever connected to the compartment channel, wherein the clamping lever is configured to be actuated between an open position and a closed position; (d) Anvil latch pin, the anvil latch pin being attached to the anvil channel, wherein the clamping lever is configured to engage the anvil latch pin when actuated from the open position to the closed position, thereby driving the chamber channel and the anvil channel from an unclamped configuration to a clamped configuration; (e) A firing assembly, wherein the firing assembly is actuable from its original position to fire the nail into the held tissue; and (d) A locking body configured to inhibit tissue suturing in a bias-locked configuration and allow tissue suturing in an unlocked configuration, wherein the locking body is configured to switch between the bias-locked and unlocked configurations in response to the clamping lever reaching the closed position when engaged with the anvil latch pin, wherein the locking body is configured to remain in the bias-locked configuration in response to the clamping lever reaching the closed position when disengaged from the anvil latch pin.

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