Anastomosis execution assembly and anastomosis apparatus

Abstract

Disclosed are an anastomosis execution assembly (100) and an anastomosis apparatus (10). The anastomosis execution assembly (100) comprises a distal end (B) and a proximal end (A) opposite to each other in the axial direction of the anastomosis execution assembly (100), and the anastomosis execution assembly (100) comprises a jaw assembly (1), a cutting assembly (2), and a first blocking structure (3). The jaw assembly (1) is configured to close or open. The cutting assembly (2) is configured be movable in the axial direction, and the axial direction is a first direction (D1). The first blocking structure (3) is configured to be adjustable in terms of the height in a second direction (D2). When the first blocking structure (3) is in an elevated state, the cutting assembly (2) is configured to be movable from the proximal side of the first blocking structure (3) to the distal side of the first blocking structure (3) in the axial direction; when the first blocking structure (3) is in a fallen state, the first blocking structure (3) prevents the cutting assembly (2) from moving from the proximal side of the first blocking structure (3) to the distal side of the first blocking structure (3) in the axial direction.

Description

Anastomosis execution components and anastomosis devices

[0001] This application claims priority to Chinese Patent Application No. 202411606376.7, filed on November 11, 2024, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0002] This disclosure relates to the field of medical devices, specifically to anastomosis execution components and anastomosis devices. Background Technology

[0003] In surgical treatment, various staplers are widely used, such as skin staplers and circular staplers for the digestive tract (esophagus, stomach, intestines, etc.). These staplers are medical devices that replace traditional manual suturing. Due to the development of modern technology and improvements in manufacturing techniques, the various staplers currently used in clinical practice have advantages such as fast and accurate suturing, simple operation, less bleeding, and few side effects and surgical complications. They can be used to remove lesions and are therefore widely used both domestically and internationally.

[0004] A stapler typically includes a handle, an axially extending shaft assembly, and a clamp assembly. The clamp assembly includes an anvil and a cartridge assembly. The cartridge assembly includes a cartridge and a cartridge seat; the cartridge is usually detachably mounted on the cartridge seat. In existing staplers, activated cartridges can be replaced with unactivated cartridges, allowing for the reuse of surgical instruments. Detachable cartridges are clinically classified as single-use consumables. After clinical use, if the staples in the cartridge are completely consumed, leaving an empty cartridge, the operator, such as a physician, cannot visually determine whether a cartridge assembly is empty. Reusing an empty stapler only allows for tissue transection without activating the staples to fix the tissue, leading to prolonged tissue bleeding during surgery, which can be life-threatening in severe cases.

[0005] Therefore, it is necessary to design a structure to restrict the use of staplers that have not installed staple cartridges or have installed staple cartridges but are in an empty state, so as to avoid the use of staplers in an empty state. Summary of the Invention

[0006] At least one embodiment of this disclosure provides an anastomosis execution assembly including a distal end and a proximal end opposite each other along the axial direction of the anastomosis execution assembly. The anastomosis execution assembly includes a clamping assembly, a cutting assembly, and a first blocking structure. The clamping assembly is configured to close or open; the cutting assembly is configured to be movable along the axial direction; the first blocking structure is configured to be height-adjustable in a second direction perpendicular to the axial direction. When the first blocking structure is raised, the cutting assembly is configured to be movable along the axial direction from the proximal side to the distal side of the first blocking structure; when the first blocking structure is lowered, the first blocking structure prevents the cutting assembly from moving along the axial direction from the proximal side to the distal side of the first blocking structure.

[0007] For example, in at least one embodiment of the anastomosis execution component provided in this disclosure, the cutting component includes a cutting device and a second blocking structure connected to each other. The anastomosis execution component is configured such that: when the first blocking structure is in a raised state, the second blocking structure can move along the axial direction from the proximal side of the first blocking structure to the distal side of the first blocking structure; and when the first blocking structure is in a lowered state, the first blocking structure prevents the second blocking structure from moving along the axial direction from the proximal side of the first blocking structure to the distal side of the first blocking structure.

[0008] For example, at least one embodiment of the present disclosure provides an anastomosis execution component including a platform component, the platform component including a step portion, the platform component being movable along the axial direction; and the anastomosis execution component being configured such that: when the clamping body assembly is closed, the step portion contacts the first blocking structure, such that the first blocking structure is raised in the second direction; the step portion moves along the axial direction toward the distal end under the drive of the cutting assembly and separates from the first blocking structure, such that the first blocking structure falls in the second direction.

[0009] For example, in at least one embodiment of the present disclosure, the anastomosis execution component is configured such that, in an initial state, there is a gap between the step portion and the first blocking structure, the cutting component is located near the first blocking structure, and the first blocking structure prevents the cutting component from moving to the far side of the first blocking structure.

[0010] When the clamp assembly is closed, the first blocking structure is raised in the second direction such that the height of the first blocking structure in the second direction is higher than the height of the second blocking structure in the second direction, so as to allow the second blocking structure to pass under the first blocking structure along the axial direction, so as to allow the cutting assembly to move along the axial direction from the proximal side of the first blocking structure to the distal side of the first blocking structure.

[0011] As the cutting assembly moves to contact the platform component and continues to move toward the distal end along the axial direction, the cutting assembly drives the platform component to move toward the distal end, causing the stepped portion to separate from the first blocking structure.

[0012] For example, in at least one embodiment of the anastomosis execution assembly provided in this disclosure, the clamp assembly includes a staple cartridge assembly and a staple anvil that are movably connected to each other, the staple cartridge assembly being provided with anastomotic staples; the platform component further includes a staple pusher, the step portion being connected to the proximal end of the staple pusher, the staple pusher being configured to move along the axial direction toward the distal end to push the anastomotic staples out of the staple cartridge assembly.

[0013] For example, in at least one embodiment of the matching execution component provided in this disclosure, the pusher portion includes a main body portion and a first pusher portion and a second pusher portion located on both sides of the main body portion, wherein the first pusher portion or the second pusher portion extends along the axial direction toward the proximal side of the platform component and is fixedly connected to the step portion to form an integral unit.

[0014] For example, in at least one embodiment of the anastomosis execution assembly provided in this disclosure, the staple cartridge assembly includes a staple cartridge seat and a staple cartridge detachably mounted on the staple cartridge seat. After the cutting assembly completes the cutting, the platform component remains in the staple cartridge. The cutting assembly is configured to move toward the proximal end along the axial direction. When the cutting assembly moves toward the proximal end and approaches the first blocking structure until the second blocking structure contacts the first blocking structure so that the first blocking structure is raised in the second direction, such that the height of the first blocking structure in the second direction is higher than the height of the second blocking structure in the second direction, the second blocking structure passes under the first blocking structure along the axial direction, so that the cutting assembly moves along the axial direction from the distal side of the first blocking structure to the proximal side of the first blocking structure.

[0015] For example, in at least one embodiment of the present disclosure, the matching execution component further includes an elastic element connected to the first blocking structure, which is elastically deformable along the second direction and configured to provide downward pressure on the first blocking structure in the second direction, and to cause the first blocking structure to fall in the second direction under the pressure.

[0016] For example, in at least one embodiment of the matching execution component provided in this disclosure, the first blocking structure includes a body and a protrusion. The body includes a first limiting member; the protrusion is connected to the body and protrudes from one end of the body along the direction in which the first blocking structure falls; the matching execution component further includes a first base block and a second limiting member disposed on the first base block, the first limiting member and the second limiting member being movably connected and mutually limiting each other, wherein during the movement of the first blocking structure in the second direction, the first limiting member is configured to move relative to the second limiting member in the second direction.

[0017] For example, in the matching execution component provided in at least one embodiment of this disclosure, one of the first limiting member and the second limiting member is a sliding hole extending along the second direction, and the other is a fixed shaft. The fixed shaft is located in the sliding hole to connect the first blocking structure to the first base block. During the movement of the first blocking structure in the second direction, the fixed shaft slides in the sliding hole along the second direction.

[0018] For example, in at least one embodiment of the matching execution component provided in this disclosure, the first base block includes: a first bottom surface adjacent to the platform component in the second direction, and a through hole. The through hole extends through the first bottom surface of the first base block along the second direction; the main body of the first blocking structure is at least partially located in the through hole, and the protrusion of the first blocking structure protrudes from the first bottom surface through the through hole.

[0019] For example, in at least one embodiment of the anastomosis execution assembly provided in this disclosure, the body further includes a contact portion located distal to the protrusion in the axial direction, the platform component being configured to abut against the contact portion in the second direction when the clamp assembly is closed so that the first blocking structure is raised in the second direction, and being configured to move along the axial direction toward the distal end under the drive of the cutting assembly to separate from the contact portion so that the first blocking structure falls in the second direction.

[0020] For example, in at least one embodiment of the matching execution component provided in this disclosure, the second blocking structure includes a first inclined surface located on its proximal side, and the second blocking structure also includes a second bottom surface located away from the first blocking structure in the second direction, the angle between the first inclined surface and the second bottom surface being an acute angle; the protrusion includes a second inclined surface located on its distal side, and the angle between the second inclined surface and the contact surface of the contact portion abutting the platform component is an obtuse angle.

[0021] For example, in at least one embodiment of the anastomosis execution assembly provided in this disclosure, the protrusion includes a first blocking surface located on its proximal side, the first blocking surface being a plane perpendicular to the axial direction; the second blocking structure further includes a second blocking surface located on its distal side, the second blocking surface being a plane perpendicular to the axial direction.

[0022] For example, in at least one embodiment of the anastomosis execution component provided in this disclosure, the anastomosis execution component is configured such that: during the process of the cutting component completing the cutting and moving towards the proximal end along the axial direction, the first inclined surface contacts the second inclined surface, and as the cutting component moves, the first inclined surface and the second inclined surface slide relative to each other, so that the second blocking structure applies a force to the protrusion and raises the first blocking structure in the second direction.

[0023] For example, in at least one embodiment of the matching execution component provided in this disclosure, the first inclined surface is a first curved surface, the top surface of the second blocking structure near the first blocking structure in the second direction is a second curved surface, the first curved surface and the second curved surface are connected and form a smooth transition integral curved surface, the integral curved surface is a convex surface; the protrusion also has a third bottom surface, the third bottom surface is smoothly connected to the second inclined surface; the protrusion and the second blocking structure are configured such that: during the process of the cutting component moving towards the proximal end along the axial direction, the second inclined surface and the third bottom surface slide sequentially over the integral curved surface.

[0024] For example, in the anastomosis execution assembly provided in at least one embodiment of this disclosure, when the clamp assembly is closed and the cutting assembly is not moved, the second blocking structure is located near the protrusion, and the second blocking structure and the protrusion have a first gap in the axial direction.

[0025] For example, in at least one embodiment of the anastomosis execution assembly provided in this disclosure, the staple cartridge assembly includes a staple cartridge seat and a staple cartridge detachably mounted on the staple cartridge seat, the staple cartridge seat having a fourth bottom surface facing the staple cartridge; the staple cartridge assembly further includes an inclined mounting member connected to the staple cartridge seat and having a second gap between the inclined mounting member and the fourth bottom surface in a second direction, the second gap being for accommodating a proximal end of the staple cartridge, the inclined mounting member being configured to prevent the staple cartridge from being mounted onto the staple cartridge seat in a horizontal direction parallel to the fourth bottom surface.

[0026] For example, in at least one embodiment of the anastomosis execution assembly provided in this disclosure, the tilting mount is configured such that, during installation of the staple cartridge by pushing it from the distal end of the staple cartridge holder to the proximal end of the staple cartridge holder along the horizontal direction, the tilting mount is located proximal to the staple cartridge in the horizontal direction to prevent the proximal end of the staple cartridge from being installed to the proximal end of the staple cartridge holder along the horizontal direction, thereby preventing the staple cartridge from being installed onto the staple cartridge holder along the horizontal direction.

[0027] For example, in at least one embodiment of the matching execution assembly provided in this disclosure, the staple cartridge seat further includes at least one sidewall connected to and intersecting with the fourth bottom surface, and the inclined mounting member is connected to the sidewall and protrudes from the sidewall toward the inside of the sidewall.

[0028] For example, in at least one embodiment of the present disclosure, the oblique mounting member is a sheet extending along the fourth bottom surface parallel to the staple cartridge seat.

[0029] At least one embodiment of this disclosure also provides an anastomosis device, which includes a drive mechanism, a drive rod, and any of the anastomosis execution components provided in the embodiments of this disclosure. The proximal end of the drive rod is connected to the drive mechanism, and the distal end of the drive rod is connected to the cutting component. The drive mechanism drives the cutting component to move along the axial direction through the drive rod.

[0030] The anastomosis execution component and anastomosis device provided in this disclosure improve the safety of the anastomosis device by enabling an empty staple cartridge safety function, thus avoiding the use of the anastomosis device in an empty staple cartridge state. The anastomosis execution component and anastomosis device provided in this disclosure improve upon the existing anastomosis device structure by allowing the height of the first blocking structure in the second direction to be adjustable (either lowered or raised), thereby blocking or allowing the cutting component to cut. Furthermore, by ingeniously linking the platform component and the second blocking structure with the first blocking structure, the anastomosis device can be reliably ensured to be unusable in an empty staple cartridge state without affecting its normal cutting and suturing operations. Even further, the platform component and the second blocking structure are respectively disposed on the staple pushing part and the cutting device of the anastomosis device. This compact and ingenious structural design allows for stable empty staple cartridge safety without the need for additional components. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure and are not intended to limit this disclosure.

[0032] Figure 1 is a partial structural schematic diagram of an anastomosis device provided in an embodiment of the present disclosure;

[0033] Figure 2 is a partial structural schematic diagram of an anastomosis device in an unclosed state according to an embodiment of the present disclosure;

[0034] Figure 3 is a partial structural schematic diagram of a stapler in a closed state and with the cutting component not moved, according to an embodiment of the present disclosure.

[0035] Figure 4 is a schematic diagram of the process by which the cutting component of a stapler provided in an embodiment of the present disclosure moves axially through a first blocking structure;

[0036] Figure 5 is a schematic diagram of the cutting assembly of a stapler provided in an embodiment of the present disclosure after it moves axially and passes through a first blocking structure;

[0037] Figure 6 is a schematic diagram of the structure of a cutting assembly of a stapler according to an embodiment of the present disclosure;

[0038] Figure 7 is a schematic diagram of the first blocking structure of a stapler provided in an embodiment of the present disclosure;

[0039] Figure 8 is a structural schematic diagram of a platform component of a stapler provided in an embodiment of this disclosure;

[0040] Figure 9 is a top view schematic diagram of the structure of the first base block of a stapler provided in an embodiment of the present disclosure;

[0041] Figure 10 is a schematic diagram of the process by which the cutting component of a stapler provided in an embodiment of the present disclosure moves axially back and passes through the first blocking structure after completing the cutting;

[0042] Figure 11 is a schematic diagram of the process by which the cutting component of a stapler provided in an embodiment of the present disclosure moves axially back and passes through the first blocking structure after completing the cutting;

[0043] Figure 12 is a schematic diagram of the process by which the cutting component of a stapler provided in an embodiment of the present disclosure moves axially back and passes through the first blocking structure after completing the cutting;

[0044] Figure 13 is a schematic diagram of the process by which the cutting component of a stapler provided in an embodiment of the present disclosure moves axially back and passes through the first blocking structure after completing the cutting;

[0045] Figure 14 is a partially enlarged schematic diagram of the cooperation between the protrusions of the second blocking structure and the first blocking structure in an anastomosis device according to an embodiment of the present disclosure;

[0046] Figure 15 is a partial schematic diagram of a stapler provided in an embodiment of the present disclosure, including an inclined mounting member and a first base block;

[0047] Figure 16 is a schematic diagram of a stapler provided in an embodiment of the present disclosure, in which the staple cartridge is installed at an angle under the constraint of an angled mounting member;

[0048] Figure 17 is a schematic diagram of an elastic element provided in an embodiment of this disclosure;

[0049] Figure 18 is a partial schematic diagram of a platform component provided in an embodiment of the present disclosure being disposed on a staple cartridge assembly;

[0050] Figure 19 is a partial schematic diagram of a first base block, a second base block, and an elastic member provided in an embodiment of the present disclosure. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the described embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0052] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “inner,” “outer,” “upper,” and “lower” are used only to indicate relative positional relationships, which may change accordingly when the absolute position of the described object changes.

[0053] The accompanying drawings in this disclosure are not drawn to scale, and the specific dimensions and quantity of each structure can be determined according to actual needs. The drawings described in this disclosure are only structural schematic diagrams.

[0054] As used in this disclosure, the characteristics such as "parallel," "perpendicular," and "identical" include those in the strict sense, as well as those containing a certain degree of error, such as "substantially parallel," "substantially overlapping," and "substantially identical," taking into account measurement and errors associated with the measurement of a specific quantity (e.g., limitations of the measurement system), and represent the acceptable range of deviation for a specific value as determined by a person skilled in the art. For example, "substantially" can mean within one or more standard deviations, and unless otherwise specified, can mean within 10% or 5% of the deviation of said value. In embodiments of this disclosure, the term "proximal" refers to a portion of the involved component or structure closer to the clinician, and the term "distal" refers to a portion of the involved component or structure farther from the clinician.

[0055] A stapler typically includes a handle, an axially extending shaft assembly, and a clamp assembly. The clamp assembly includes an anvil and a cartridge assembly. The cartridge assembly includes a cartridge and a cartridge seat; the cartridge is usually detachably mounted on the cartridge seat. In existing staplers, activated cartridges can be replaced with unactivated cartridges, allowing for the reuse of surgical instruments. Detachable cartridges are clinically positioned as single-use consumables. After clinical use, if the staples in the cartridge are completely consumed, leaving an empty cartridge, the operator, such as a physician, cannot visually determine whether a cartridge assembly is empty. Reusing a stapler with an empty cartridge only allows for tissue transection without activating the staples to fix the tissue, leading to prolonged tissue bleeding during surgery, which can be life-threatening in severe cases. Therefore, a structure is needed to restrict the use of clamp assemblies without a cartridge or with an empty cartridge, preventing the use of staplers with empty cartridges.

[0056] For example, Figure 1 is a partial structural schematic diagram of a stapler provided in an embodiment of the present disclosure; Figure 2 is a partial structural schematic diagram of a stapler in an unclosed state provided in an embodiment of the present disclosure; Figure 3 is a partial structural schematic diagram of a stapler in a closed state provided in an embodiment of the present disclosure with the cutting component not moved; Figure 4 is a schematic diagram of the process of the cutting component of a stapler moving axially and passing through the first blocking structure provided in an embodiment of the present disclosure; Figure 5 is a schematic diagram of the cutting device of a stapler after moving axially and passing through the first blocking structure provided in an embodiment of the present disclosure.

[0057] As shown in Figure 1, the stapler 10 includes a stapler execution assembly 100, a cannula assembly 200, and a handle portion (not shown). The stapler 10 is also referred to as a stapler device, and the handle portion includes a drive mechanism. Referring to Figures 1-3, the stapler execution assembly 100 provided in at least one embodiment of this disclosure includes: a clamping body assembly 1, a cutting assembly 2, and a first blocking structure 3. The proximal end of the stapler execution assembly 100 is marked A, and the distal end of the stapler execution assembly 100 is marked B. The clamping body assembly 1 is configured to close or open; for example, the clamping body assembly 1 is configured to close to clamp the target tissue, or open to release the target tissue. Referring to Figure 2, the axial direction is marked as a first direction D1, and the direction perpendicular to the first direction D1 is marked as a second direction D2. The cutting assembly 2 is configured to be movable along the axial direction D1 to cut the target tissue clamped by the clamping body assembly 1. The axial direction D1 can be understood as the extension direction of the entire stapler, as shown in Figure 1. The first blocking structure 3 is configured to be height-adjustable in the second direction D2. In this disclosure, "height" refers to the distance of relative position or displacement in a second direction D2 perpendicular to the first direction D1, and does not specifically refer to vertical height or altitude, nor does it refer to the distance of displacement due to gravity or in a direction perpendicular to the ground. In this embodiment, height is taken as an example of the relative position or displacement distance in the second direction D2, one of the directions perpendicular to the first direction D1, as shown in Figures 2-5. "Raising" and "falling" both refer to changes in height along this direction. In other embodiments, height may also refer to the distance of relative position or displacement in a direction perpendicular to the first direction D1 and intersecting or opposite to the second direction D2.

[0058] For example, as shown in Figures 3 and 4, when the first blocking structure 3 is in an elevated state, the cutting assembly 2 is configured to move axially from the proximal side of the first blocking structure 3 to the distal side of the first blocking structure 3; in the state shown in Figure 2, i.e., when the first blocking structure 3 is in a lowered state, the first blocking structure 3 prevents the cutting assembly 2 from moving axially from the proximal side of the first blocking structure 3 to the distal side of the first blocking structure 3.

[0059] For example, the cutting assembly 2 includes a cutting device 22 and a second blocking structure 21 connected to each other. For example, in the process from FIG2 to FIG3, the first blocking structure 3 is configured to move away from the second blocking structure 21 in the longitudinal direction D2 and be raised. When the first blocking structure 3 is raised, the cutting assembly 2 is configured to move along the axial direction D1 from the proximal side of the first blocking structure 3 to the distal side of the first blocking structure 3. In the process from FIG4 to FIG5, the first blocking structure 3 is configured to move closer to the second blocking structure 21 in the longitudinal direction D2 and fall. Referring to Figure 2, when the first blocking structure 3 is in the lowered state, the first blocking structure 3 prevents the second blocking structure 21 from moving along the axial direction D1 from the proximal side of the first blocking structure 3 to the distal side of the first blocking structure 3, thereby preventing the cutting assembly 2 from moving from the proximal side of the first blocking structure 3 to the distal side of the first blocking structure 3. This prevents the cutting assembly 2 from moving to the clamp assembly 1 to cut the unsutured tissue. Thus, when the cutting assembly 2 is located proximal to the first blocking structure 3 and the first blocking structure 3 is not raised, the cutting assembly 2 can be prevented from performing a cutting operation, providing a safety guarantee in this specific situation. The "proximal" or "distal" side of the first blocking structure is relative; it is not required that the entire cutting assembly 2 be located proximal to the first blocking structure (part or all of the cutting device 22 may be distal to the first blocking structure 3 at this time, but is limited and cannot move distally).

[0060] It should be noted that the height of the first blocking structure 3 in the second direction D2 refers to the height of the first blocking structure 3 relative to an object whose height in the second direction D2 remains constant during the use of the stapler, such as the first base block 6.

[0061] The clamp assembly 1 includes a staple cartridge assembly 11 and an anvil 12, wherein the staple cartridge assembly 11 and the anvil 12 are configured to engage with each other to close the clamp assembly 1, and to move away from each other to open the clamp assembly 1. For example, the staple cartridge assembly 11 may be pivotable relative to the anvil 12 about a closing axis, as exemplified here. In another embodiment, the anvil 12 may also be pivotable relative to the staple cartridge assembly 11.

[0062] For example, referring to Figures 2-3, 8, and 18, the mating execution assembly 100 further includes a platform component 4, which includes a step portion 41 and a pusher portion 40. The platform component 4 is configured to be movable along the axial direction D1. The step portion 41 is located at the proximal end of the pusher portion 40. The platform component 4 is movably connected to the staple cartridge assembly 11. For example, the platform component 4 can slide along the slide 113 in the staple cartridge assembly 11 along the axial direction D1. Referring to Figures 2-3, the platform component 4 is configured such that when the clamp assembly 1 is closed, the step portion 41 contacts the first blocking structure 3 so that the first blocking structure 3 is raised in the second direction D2, and the step portion 41 is configured to move along the axial direction D1 toward the distal end B under the drive of the cutting assembly 2 to separate from the first blocking structure 3, so that the first blocking structure 3 falls up and down in the second direction D2.

[0063] Specifically, referring to Figures 15 and 16, the staple cartridge assembly 11 includes a staple cartridge seat 111 and a staple cartridge 112 detachably mounted on the staple cartridge seat 111. Referring to Figure 2, for example, the stapler 10 has an initial state before being activated, i.e., the clamp assembly 1 is in the open state, the staple cartridge assembly 11 is equipped with the staple cartridge 112 and the staples are not activated. In the initial state, there is a gap between the step portion 41 and the first blocking structure 3, the cutting assembly 2 is located near the first blocking structure 3, and the first blocking structure 3 prevents the cutting assembly 2 from moving to the distal side of the first blocking structure 3. Referring to Figure 3, when the clamp assembly 1 is closed, the first blocking structure 3 is raised in the second direction D2 so that the height of the first blocking structure 3 in the longitudinal direction D2 is higher than the height of the second blocking structure 21 in the second direction D2. Therefore, referring to Figures 3-5, when a cutting task needs to be performed, the cutting assembly 2 moves towards the distal end B along the axial direction D1 under the drive of the drive mechanism. The second blocking structure 21 can pass under the first blocking structure 3 along the axial direction D1, so that the cutting assembly 2 moves from the proximal side to the distal side of the first blocking structure 3 along the axial direction D1. In this disclosure, "below," "downward," or "falling" does not specifically refer to the direction of gravity, but rather to the direction opposite to the direction in which the first blocking structure 3 is raised. When the cutting component 2 moves to contact the step portion 41 and continues to move toward the distal end B of the matching execution component 100, the cutting component 2 contacts the platform component 4. The cutting component 2 continues to move toward the distal end B along the axial direction D1, driving the platform component 4 to move toward the distal end B, as shown in Figure 5. This causes the platform component 4 to separate from the first blocking structure 3, so that the platform component 4 no longer supports the first blocking structure 3, and the first blocking structure 3 falls up and down in the longitudinal direction D2.

[0064] When the clamp assembly 1 closes to clamp the target tissue, the pusher portion 40 is configured to move axially D1 to the clamp assembly 1 to push out the staples in the staple cartridge assembly 11 and suture the target tissue. The stepped portion 41 of the platform component 4 and the pusher portion 40 can be integrally formed to simplify the structure of the stapler and reduce design and manufacturing difficulties. Figure 8 is a schematic diagram of the structure of a platform component of a stapler provided in an embodiment of this disclosure. The stepped portion 41 is located near the pusher portion 40 and connected to it. Referring to Figures 2-3, the stepped portion 41 is configured to contact the first blocking structure 3 to raise the first blocking structure 3 in the second direction D2, and to separate from the first blocking structure 3 so that the first blocking structure 3 moves up and down in the second direction D2. The pusher portion 40 is located distal to the cutting assembly 2. When the cutting assembly 2 abuts against the pusher portion 40, the cutting assembly 2 continues to move toward the distal end B to drive the pusher portion 40 to move toward the distal end B, pushing out the staples in the staple cartridge assembly 11 to suture the target tissue. The cutting device 22 of the cutting assembly 2 cuts the sutured tissue. In some other embodiments, the pusher portion 40 and the step portion 41 may also be two separate but interconnected components.

[0065] Referring to Figures 8 and 2, the pusher portion 40 includes a main body 400 and a first pusher portion 401 and a second pusher portion 402 on both sides of the main body 400. The first pusher portion 401 has a first pusher surface 401a, and the second pusher portion 402 has a second pusher surface 402a. The first pusher portion 401 includes a first groove 40a, and the first pusher portion 401 extends proximally along the axial direction D1 to form a stepped portion 41. The first groove 40a extends through the first pusher portion 401 and the stepped portion 41 along the axial direction D1. The first groove 40a extends through the stepped portion 41, allowing the stepped portion 41 to slide along the slide of the staple cartridge assembly 11, thereby preventing the pusher portion 40 from being obstructed from moving along the axial direction D1 during the pusher process due to the step portion 41. The second pusher portion 402 includes a second groove 40b.

[0066] Referring to FIG. 18, the main body 400 is located in the slide 113 of the staple cartridge assembly 11 and is configured to move along the axial direction D1 within the slide 113. For example, the slide 113 is an intermediate slide located in the middle region of the staple cartridge assembly 11 and extending along the axial direction D1. The first pusher portion 401 and the second pusher portion 402 move along the axial direction D1 to push out the staples in the staple cartridge assembly 11. For example, referring to FIG. 8, the first pusher portion 401 has a first pusher surface 401a, and the second pusher portion 402 has a second pusher surface 402a. The first pusher surface 401a and the second pusher surface 402a apply pressure to the staples disposed on both sides of the slide 113 of the staple cartridge assembly 11 to push out the staples.

[0067] Referring to FIG6, for example, the cutting assembly 2 includes a second blocking structure 21 and a cutting device 22 (i.e., a cutting blade). For example, the cutting assembly 2 has a driving surface 2b axially facing the distal end B, which contacts the pusher portion 40 to drive the pusher portion 40 to move along the axial direction D1. For example, referring to FIGS. 6 and 8, the pusher surface 2b contacts the main body portion 400 of the pusher portion 40 to drive the pusher component to move along the axial direction D1. The cutting assembly 2 has a side surface 2a extending along the longitudinal direction D2. The second blocking structure 21 is disposed on and protrudes from the side surface 2a, with the protruding direction of the second blocking structure 21 facing the stepped portion 41.

[0068] For example, the cutting assembly 2 also serves as a closing device, configured to move along the axial direction D1 to drive the clamp assembly 1 to close. Referring, for example, to FIG. 6, the cutting assembly 2 further includes a lower flange 23 and an upper flange 24. Referring to FIG. 3, the upper flange 24 contacts the anvil 12, and the lower flange 23 moves along the bottom surface of the staple cartridge assembly 11, causing the staple cartridge assembly 11 to pivot and approach the anvil 12, for example, parallel to the anvil 12, thereby closing the clamp assembly 1. Referring to FIGS. 3 and 6, for example, the proximal end of the staple cartridge seat 111 has a ramp 110. For example, the inner surface of the lower flange 23 abuts against the ramp 110 and slides along the ramp 110 to cause the staple cartridge assembly 11 to pivot and approach the anvil, for example, pivoting the staple cartridge assembly 11 to be parallel to the anvil 12.

[0069] For example, referring to Figure 3, when the anvil 12 and the staple cartridge assembly 11 are just engaged, there is a first gap in the axial direction D1 between the protrusion 32 of the first blocking structure 3 and the second blocking structure 21, i.e., a distance, to act as a buffer. This allows the second blocking structure 21 to pass under the first blocking structure 3 only as the cutting assembly 2 continues to move towards the distal end B, with the first blocking structure 3 raised and stable, thus improving the reliability of the instrument's operation. In the state shown in Figure 3, relative to the initial position, the cutting assembly 2 has moved a small distance distally along the axial direction D1, but the second blocking structure 21 remains near or directly below the protrusion 32.

[0070] Figure 10 is a schematic diagram of the process by which the cutting component of a stapler provided in an embodiment of the present disclosure moves axially back and passes through the first blocking structure after completing the cutting; Figure 11 is a schematic diagram of the process by which the cutting component of a stapler provided in an embodiment of the present disclosure moves axially back and passes through the first blocking structure after completing the cutting; Figure 12 is a schematic diagram of the process by which the cutting component of a stapler provided in an embodiment of the present disclosure moves axially back and passes through the first blocking structure after completing the cutting; Figure 13 is a schematic diagram of the process by which the cutting component of a stapler provided in an embodiment of the present disclosure moves axially back and passes through the first blocking structure after completing the cutting.

[0071] Referring to Figures 10 and 1, after the cutting assembly 2 completes the aforementioned cutting operation, the platform component 4 remains in the staple cartridge 112 of the staple cartridge assembly 11, so that it can be disassembled along with the staple cartridge 112 after the surgery. The cutting assembly 2 is configured to move along the axial direction D1 toward the proximal end A. As the cutting assembly 2 moves toward the proximal end A and approaches the first blocking structure 3, until the second blocking structure 21 contacts the first blocking structure 3 so that the first blocking structure 3 is raised in the second direction D2, and then when the height of the first blocking structure 3 in the second direction D2 is higher than the height of the second blocking structure 21 in the second direction D2, the second blocking structure 21 passes under the first blocking structure 3 along the axial direction D1, so that the cutting assembly 2 moves along the axial direction D1 from the distal side to the proximal side of the first blocking structure 3. Figures 10-13 illustrate this process sequentially. For example, based on Figure 13, after the cutting component 2 completes the above-mentioned cutting operation, it is moved back to the side of the first blocking structure 3 near the proximal end A (i.e., the proximal side of the first blocking structure 3). Since the first blocking structure 3 is in a falling state, the height of the protrusion 32 of the first blocking structure 3 in the longitudinal direction D2 is equal to or lower than the height of the second blocking structure 21 in the longitudinal direction D2. At this time, the platform component 4 is still in the staple cartridge 112, so it cannot raise the first blocking structure 3. Thus, the first blocking structure 3 can prevent the second blocking structure 21 from moving from the proximal side of the first blocking structure 3 to the distal side of the first blocking structure 3 along the axial direction D1, so as to prevent the cutting component 2 from moving from the proximal side of the first blocking structure 3 to the distal side of the first blocking structure 3, thereby preventing the cutting component 2 from moving from the proximal end to the distal end of the clamp assembly 1 to cut the unsutured tissue. Therefore, when the staple cartridge of the stapler 10 has been activated, and the cartridge may be empty (without staples), the cutting component 2 can be prevented from performing a cutting operation, avoiding the use of a stapler with an empty staple cartridge. However, for a stapler 10 that has not been activated, according to the previously described operating process, the cutting component 2 can pass under the first blocking structure 3 when the first blocking structure 3 is raised by the platform component 4, performing a suturing-then-cutting operation. Thus, the stapler provided in this embodiment can achieve an empty staple cartridge safety function, avoiding the use of a stapler with an empty staple cartridge, thereby avoiding the aforementioned drawbacks associated with using a stapler with an empty staple cartridge.

[0072] Figure 7 is a schematic diagram of the structure of a first blocking structure of a stapler according to an embodiment of the present disclosure. For example, referring to Figures 2 and 7, the first blocking structure 3 includes a main body 31 and a protrusion 32. The main body 31 includes a first limiting member 33; the protrusion 32 is connected to the main body 31 and protrudes from the end of the main body 31 of the first blocking structure 3 away from the first limiting member 33 along the longitudinal direction D2; the stapler 10 also includes a base block 6 and a second limiting member 61 disposed on the base block 6. The first limiting member 33 and the second limiting member 61 are movably connected and mutually limiting each other. During the movement of the first blocking structure 3 in the longitudinal direction D2, the first limiting member 33 is configured to move relative to the second limiting member 61 in the longitudinal direction D2.

[0073] For example, one of the first limiting member 33 and the second limiting member 61 is a sliding hole extending along the longitudinal direction D2, and the other is a fixed shaft. Referring to Figures 2-5, the first limiting member 33 is a sliding pin hole extending along the longitudinal direction D2, and the second limiting member 61 is a fixing pin. The fixing pin is located in the sliding pin hole to connect the first blocking structure 3 to the first base block 6. During the movement of the first blocking structure 3 along the longitudinal direction D2, the fixing pin slides along the longitudinal direction D2 in the sliding pin hole. Of course, in another embodiment, the first limiting member can be a fixing pin, and the second limiting member can be a sliding pin hole extending along the longitudinal direction D2. As long as the first limiting member and the second limiting member can move relative to each other longitudinally and limit each other, it is acceptable.

[0074] For example, referring to Figures 2 and 7, the main body 31 of the first blocking structure 3 includes a contact portion 311 located on the side of the protrusion 32 near the proximal end A. The platform component 4 (e.g., the step portion 41) is configured to contact the contact portion 311 of the first blocking structure 3 when the clamp assembly 1 is closed, so that the first blocking structure 3 is raised in the longitudinal direction D2, and is configured to move along the axial direction D1 toward the distal end B under the drive of the cutting assembly 2 and separate from the contact portion 311 of the first blocking structure 3, so that the first blocking structure 3 falls up and down in the longitudinal direction D2.

[0075] For example, the main body 31 of the first blocking structure 3 also includes a connecting portion 312 that is connected to the contact portion 311 and extends along the longitudinal direction D1, and the connecting portion 312 includes the aforementioned first limiting member 33.

[0076] This disclosure also provides a stapler. For example, referring to FIG2, the stapler 10 includes a drive rod portion 8. The distal end of the drive rod portion 8 is connected to the cutting assembly 2, and the proximal end is connected to a drive mechanism (not shown). The distal end of the drive rod portion 8 is axially movable in a first base block 6 to drive the cutting assembly 2 to move axially. The drive rod portion 8 can be an integral structure, or the drive rod portion 8 includes a detachably connected proximal end and a distal end. The distal end is disposed within the stapler execution assembly 100 and connected to the cutting assembly 2, while the proximal end is disposed within the sleeve assembly 200 and connected to the drive mechanism.

[0077] Figure 9 is a top view schematic diagram of the structure of a first base block of an anastomosis device according to an embodiment of the present disclosure. Referring to Figures 9 and 2, the first base block 6 includes a first bottom surface 62 near the platform component 4 in the longitudinal direction D2, and also includes a through hole 63. The through hole 63 penetrates the first bottom surface 62 of the first base block 6 along the longitudinal direction D2. The connecting portion 312 of the main body 31 of the first blocking structure 3 is located in the through hole 63, and the protrusion 32 of the first blocking structure 3 is exposed through the through hole 63 and protrudes from the first bottom surface 62 of the base block 6. For example, the contact portion 311 of the first blocking structure 3 is located below the first base block 6. As shown in Figure 9, the first base block 6 includes side holes 65, for example, multiple side holes 65. A second limiting member 61 (e.g., a fixing pin) passes through these side holes 65 and the first limiting member 33 of the first blocking structure 3 to fix the first blocking structure 3 to the base block 6, and the blocking structure 3 is movable in the second direction D2.

[0078] For example, referring to Figures 2 and 17, the stapler 10 also includes an elastic element 5 connected to the first blocking structure 3, capable of elastic deformation along the second direction D2, and configured to be compressed when the first blocking structure 3 is raised in the longitudinal direction D2, and to cause the first blocking structure 3 to fall up and down in the longitudinal direction D2 under the elastic force of the elastic element 5.

[0079] For example, in the embodiments shown in Figures 2, 17, and 19, the distal end of the elastic member 5 extends and bends along the first direction D1 toward the upper surface of the first blocking structure 3, and the distal end of the elastic member 5 is connected to the first blocking structure 3. The proximal end of the elastic member 5 extends along the second direction D2 and is connected to the first base block 6. For example, the proximal end of the elastic member 5 is disposed in a limiting groove 64 at the proximal end of the first base block 6. The second base block 9 is connected to the first base block 6 and is located at the proximal end of the first base block 6. The second base block 9 is at least partially located above the proximal end of the elastic member 5 to restrict the movement of the proximal end of the elastic member 5 in the second direction D2. For example, the second base block 9 is located above the first base block 6, and the distal end of the second base block 9 is located above the proximal end of the elastic member 5. That is, the distal end of the second base block 9 covers the limiting groove 64 and the proximal end of the elastic member 5 to restrict the movement of the proximal end of the elastic member 5 in the second direction D2.

[0080] For example, the distal end of the elastic element 5 is located on the upper surface of the first blocking structure 3, and exerts downward pressure on it in the longitudinal direction D2 to better exert the elastic force. Of course, in other embodiments, the first end of the elastic element 5 near the distal end is not limited to being located on the upper surface of the first blocking structure 3, as long as it is connected to the first blocking structure 3 and can apply a downward elastic force in the longitudinal direction D2 to the first blocking structure 3, so that the first blocking structure 3 falls up and down in the longitudinal direction D2 under the action of the elastic force.

[0081] Alternatively, in other embodiments, the elastic element is positioned above the first blocking structure 3 in the longitudinal direction D2, with a first end of the elastic element connected to the first blocking structure 3 in the longitudinal direction D2, and a second end of the elastic element fixed to the first base block 6 in the longitudinal direction D2. The elastic element is, for example, a compression spring extending along the longitudinal direction D2, capable of elastic deformation in the longitudinal direction. In this way, the elastic element can also apply a downward elastic force along the longitudinal direction D2 to the first blocking structure 3.

[0082] Of course, the above-mentioned ways of setting elastic elements are exemplary and are not limited to the methods listed above.

[0083] Figure 14 is a partially enlarged schematic diagram of a second blocking structure and a first blocking structure in an anastomosis device according to an embodiment of the present disclosure. Referring to Figures 14 and 6, for example, the surface of the second blocking structure 21 near the proximal end A in the axial direction D1 is a first inclined surface 211 (i.e., the second blocking structure 21 includes a first inclined surface 211 located on its proximal side), and the second blocking structure 21 has a second bottom surface 213 away from the first blocking structure in the longitudinal direction D2, and the included angle between the first inclined surface 211 and the second bottom surface 213 is an acute angle. Referring to Figures 14 and 7, the protrusion 32 of the first blocking structure 3 includes a second inclined surface 321, the second inclined surface 321 is located on the distal side of the protrusion 32, and the included angle between the second inclined surface 321 and the contact surface of the contact portion 311 of the body 31 abutting the platform component 4 (i.e., in the direction towards the distal end B along the axial direction D1) is an obtuse angle. Thus, after the cutting assembly 2 completes the cutting operation, as it moves along the axial direction D1 towards the proximal end A, the first inclined surface 211 of the second blocking structure 21 is configured to contact the second inclined surface 321 of the protrusion 32. Furthermore, as the cutting assembly 2 moves towards the proximal end A, the first inclined surface 211 and the second inclined surface 321 slide relative to each other, causing the second blocking structure 21 to exert a force on the protrusion 32, thereby raising the first blocking structure 3 in the longitudinal direction D2. The arrangement of these two inclined surfaces facilitates smooth relative sliding between them, thereby raising the first blocking structure 3 in the longitudinal direction D2.

[0084] For example, referring to Figure 14, the surface of protrusion 32 near the proximal end A in the axial direction D1 is the first blocking surface 324, which is a plane perpendicular to the axial direction D1. After the cutting assembly 2 completes the cutting operation and moves to the side of protrusion 32 near the proximal end A, the flat first blocking surface 324 helps to block the second blocking structure 21, thereby preventing the cutting assembly 2 from moving again to the side of protrusion 32 near the distal end B. For example, the second blocking structure 21 includes a second blocking surface 214 located on its distal side, which is a plane perpendicular to the axial direction D1. In this way, after the stapler 10 has been activated, that is, after the installed staple cartridge has been used (in the case of no staples), the cutting assembly 2 is prevented from moving from the proximal end to the distal end of the clamp assembly 1 to cut the unsutured tissue, thereby forming an empty staple cartridge safety mechanism.

[0085] In Figure 10, the first inclined surface 211 and the second inclined surface 321 just begin to contact; as the cutting component 2 moves toward the proximal end A, as shown in Figure 11, the first inclined surface 211 and the second inclined surface 321 slide relative to each other, the first blocking structure 3 is raised to a certain extent in the longitudinal direction D2, and the elastic element 5 is compressed.

[0086] For example, as shown in Figure 6, the second blocking structure 21 also has a top surface 212 close to the second blocking structure 21 in the longitudinal direction D2. As shown in Figure 12, the protrusion 32 also has a third bottom surface 322, the third bottom surface 322 of the protrusion 32 being connected to the second inclined surface 321 and located on the side of the second inclined surface 321 near the proximal end A. Further, as the cutting assembly 2 moves toward the proximal end A, as shown in Figure 12, the third bottom surface 322 of the protrusion 32 slides at least over the top surface 212 of the second blocking structure 21, the first blocking structure 3 is further raised in the longitudinal direction D2 to a height greater than the height of the top surface 212 of the second blocking structure 21, and the elastic member 5 is further compressed.

[0087] For example, the first inclined surface 211 is a first curved surface, which is a convex surface. Compared with the design of a flat friction surface, the curved surface design makes the contact area smaller, which helps to reduce the resistance when the first inclined surface 211 and the second inclined surface 321 slide relative to each other.

[0088] For example, the top surface 212 of the second blocking structure 21 is a second curved surface. The first curved surface and the second curved surface are connected and form a smooth transition integral curved surface 210. The second inclined surface 321 and the third bottom surface 322 of the protrusion 32 slide over the integral curved surface 210 in sequence. The integral curved surface 210 is a convex surface, which helps to reduce the contact area during the process of the second blocking structure 21 moving from the side of the protrusion 32 near the far end to the side of the protrusion 32 near the near end, thereby further reducing the resistance experienced by the second blocking structure 21.

[0089] For example, as shown in Figure 13, the second blocking structure 21 moves back to the side of the protrusion 32 near the proximal end A. At this time, the second blocking structure 21 no longer applies pressure upward along the longitudinal direction D2 to the protrusion 32. The first blocking structure 3 falls along the longitudinal direction D2 under the action of the elastic force (elastic restoring force) of the elastic element 5, so that the protrusion 32 falls along the longitudinal direction D2 and subsequently plays a blocking role against the second blocking structure 21.

[0090] Figure 15 is a partial schematic diagram of an anastomosis execution assembly according to an embodiment of the present disclosure, including a tilting mount 7 and a base block 6; Figure 16 is a schematic diagram of an anastomosis device according to an embodiment of the present disclosure, in which a staple cartridge 112 is tilted under the constraint of the tilting mount 7. Referring to Figures 15-16, for example, the staple cartridge assembly 11 further includes the tilting mount 7, which is connected to the staple cartridge seat 111, located near the staple cartridge seat 111, and has a second gap in the longitudinal direction D2 between itself and the fourth bottom surface 111a of the staple cartridge seat 111 facing the staple cartridge 112. The second gap is used to accommodate the proximal end of the staple cartridge 112 to be installed. The tilting mount 7 is configured to prevent the staple cartridge 112 from being installed onto the staple cartridge seat 111 in a horizontal direction parallel to the fourth bottom surface 111a of the staple cartridge seat 111.

[0091] For example, referring to FIG16, during the installation process of pushing the staple cartridge 112 horizontally from the distal end of the staple cartridge seat 111 to the proximal end of the staple cartridge seat 111, the tilting mount 7 is located on the proximal side of the staple cartridge 112 in the horizontal direction. In one embodiment, the height of the tilting mount 7 in the direction perpendicular to the fourth bottom surface 111a of the staple cartridge seat 111 is lower than the height of the upper surface 112a of the staple cartridge 112 away from the staple cartridge seat 111, for example, lower than the height of the upper surface of the proximal end 112b of the staple cartridge 112, so as to prevent the staple cartridge 112 from moving in the horizontal direction, thereby preventing the staple cartridge from being installed on the staple cartridge seat 111 in the horizontal direction. The staple cartridge 112 needs to be tilted at a certain angle, for example, with the upper surface 112a of the staple cartridge 112 forming a certain angle with the horizontal direction. This allows the proximal end 112b of the staple cartridge 112 to be inserted first into the lower part of the inclined mounting member 7, that is, into the second gap between the inclined mounting member 7 and the fourth bottom surface 111a of the staple cartridge 112. Then, the other parts of the staple cartridge 112 are slowly pushed in and pressed down into the receiving space of the staple cartridge seat 111. In this way, during the installation of the staple cartridge 112 into the staple cartridge seat 111, the proximal end 112b of the staple cartridge 112 advances more gently, avoiding the sudden push-in of the staple cartridge 112 due to lack of resistance when installing the staple cartridge in the horizontal direction. During the installation of the staple cartridge 112 in the stapler 10, the platform component 4 is located near the staple cartridge 112. If the nail 112 is installed horizontally, and the nail cartridge 112 is pushed into the nail cartridge seat 111 under unobstructed conditions, the platform component 4 may easily move axially due to the operator's force, potentially moving towards the distal end B. This would prevent the platform component 4 from providing support and raising the first blocking structure 3 in its original position, causing the empty nail cartridge safety device to fail. Therefore, the inclined mounting component 7 can prevent the platform component 4 from moving towards the distal end B, thus avoiding the failure of the empty nail cartridge safety device.

[0092] For example, referring to Figure 16, the staple cartridge holder 111 also includes a sidewall 112c that is connected to and intersects with the bottom surface of the staple cartridge holder 111. The inclined mounting member 7 is connected to the sidewall 112c and protrudes from the sidewall 112c toward the inside of the sidewall 112c. The inside of the sidewall 112c refers to the space in the staple cartridge holder 111 for accommodating the staple cartridge.

[0093] For example, referring to FIG16, the inclined mounting member 7 is a sheet extending along the bottom surface parallel to the staple cartridge seat 111, which helps to save the space occupied by the inclined mounting member 7. Of course, the inclined mounting member 7 is not limited to the shape shown in FIG16, and the specific shape of the inclined mounting member 7 is not limited in the embodiments of this disclosure.

[0094] The following points need to be explained:

[0095] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure. Other structures can be referred to the general design.

[0096] (2) Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0097] The above description is merely an exemplary embodiment of this disclosure and is not intended to limit the scope of protection of this disclosure, which is determined by the appended claims.

Claims

1. A matching actuator assembly, comprising a distal end and a proximal end opposite each other along the axial direction of the matching actuator assembly, wherein, The matching execution component includes: The clamp assembly is configured to be closed or open; The cutting assembly is configured to be movable along the said axial direction; and A first blocking structure is configured to be height-adjustable in a second direction, perpendicular to the axial direction, wherein... With the first blocking structure in an elevated state, the cutting assembly is configured to be movable along the axial direction from the proximal side of the first blocking structure to the distal side of the first blocking structure. When the first blocking structure is in a falling state, the first blocking structure prevents the cutting assembly from moving along the axial direction from the proximal side of the first blocking structure to the distal side of the first blocking structure.

2. The anastomosis execution assembly according to claim 1, wherein the cutting assembly comprises a cutting device and a second blocking structure connected to each other, and the anastomosis execution assembly is configured as follows: With the first blocking structure in a raised state, the second blocking structure can move along the axial direction from the proximal side of the first blocking structure to the distal side of the first blocking structure. When the first blocking structure is in a falling state, the first blocking structure prevents the second blocking structure from moving along the axial direction from the proximal side of the first blocking structure to the distal side of the first blocking structure.

3. The matching execution component according to claim 2, further comprising: A platform component, including a stepped portion, is configured to be movable along the axial direction; And the matching execution component is configured as follows: When the clamp assembly is closed, the stepped portion contacts the first blocking structure, so that the first blocking structure is raised in the second direction; The stepped portion moves along the axial direction toward the distal end under the drive of the cutting assembly, separating from the first blocking structure, so that the first blocking structure falls in the second direction.

4. The matching execution component according to claim 3, wherein, The matching execution component is configured as follows: In the initial state, there is a gap between the stepped portion and the first blocking structure, the cutting component is located near the first blocking structure, and the first blocking structure prevents the cutting component from moving to the far side of the first blocking structure; When the clamp assembly is closed, the first blocking structure is raised in the second direction such that the height of the first blocking structure in the second direction is higher than the height of the second blocking structure in the second direction, so as to allow the second blocking structure to pass under the first blocking structure along the axial direction, so as to allow the cutting assembly to move along the axial direction from the proximal side of the first blocking structure to the distal side of the first blocking structure. As the cutting assembly moves to contact the platform component and continues to move toward the distal end along the axial direction, the cutting assembly drives the platform component to move toward the distal end, causing the stepped portion to separate from the first blocking structure.

5. The matching execution component according to claim 4, wherein, The clamp assembly includes a staple cartridge assembly and a staple anvil that are movably connected to each other, and the staple cartridge assembly is provided with staples. The platform component also includes a pusher portion, the stepped portion being connected to the proximal end of the pusher portion, the pusher portion being configured to move along the axial direction toward the distal end to eject the anastomotic staple from the staple cartridge assembly.

6. The matching execution component according to claim 5, wherein, The pusher portion includes a main body and a first pusher portion and a second pusher portion located on both sides of the main body. The first pusher portion or the second pusher portion extends along the axial direction toward the proximal side of the platform component and is fixedly connected to the step portion to form an integral unit.

7. The matching execution component according to claim 5 or 6, wherein, The staple cartridge assembly includes a staple cartridge seat and a staple cartridge detachably mounted on the staple cartridge seat. After the cutting assembly completes the cutting, the platform component remains in the staple cartridge. The cutting assembly is configured to move along the axial direction toward the proximal end. As the cutting assembly moves toward the proximal end and approaches the first blocking structure until the second blocking structure contacts the first blocking structure such that the first blocking structure is raised in the second direction, such that the height of the first blocking structure in the second direction is higher than the height of the second blocking structure in the second direction, the second blocking structure passes under the first blocking structure along the axial direction, such that the cutting assembly moves along the axial direction from the distal side of the first blocking structure to the proximal side of the first blocking structure.

8. The matching execution component according to any one of claims 1-7, wherein, The matching execution component also includes: An elastic element, connected to the first blocking structure, elastically deformable along the second direction, and configured to provide downward pressure on the first blocking structure in the second direction, and to cause the first blocking structure to fall in the second direction under the pressure.

9. The matching execution component according to any one of claims 3-7, wherein, The first blocking structure includes: The main body includes the first limiting member; and A protrusion, connected to the main body, and protruding from one end of the main body in the direction of the first blocking structure falling; The matching execution component further includes a first base block and a second limiting member disposed on the first base block. The first limiting member and the second limiting member are movably connected and limit each other. During the movement of the first blocking structure in the second direction, the first limiting member is configured to move relative to the second limiting member in the second direction.

10. The matching execution component according to claim 9, wherein, One of the first limiting member and the second limiting member is a sliding hole extending along the second direction, and the other is a fixed shaft. The fixed shaft is located in the sliding hole to connect the first blocking structure to the first base block. During the movement of the first blocking structure in the second direction, the fixed shaft slides in the sliding hole along the second direction.

11. The matching execution component according to claim 9 or 10, wherein, The first base block includes: The first bottom surface of the platform component is close to the second direction; A through hole extends through the first bottom surface of the first base block along the second direction, wherein at least part of the main body of the first blocking structure is located in the through hole, and the protrusion of the first blocking structure protrudes from the first bottom surface through the through hole.

12. The matching execution component according to any one of claims 9-11, wherein, The body also includes a contact portion located distal to the protrusion in the axial direction. The platform component is configured to abut against the contact portion in the second direction when the clamp assembly is closed, so that the first blocking structure is raised in the second direction, and is configured to move along the axial direction toward the distal end under the drive of the cutting assembly to separate from the contact portion, so that the first blocking structure falls in the second direction.

13. The matching execution component according to claim 12, wherein, The second blocking structure includes a first inclined surface located on its proximal side, and the second blocking structure also includes a second bottom surface located away from the first blocking structure in the second direction, the angle between the first inclined surface and the second bottom surface being an acute angle; The protrusion includes a second inclined surface located on its distal side, and the angle between the second inclined surface and the contact surface of the contact portion abutting the platform component is an obtuse angle.

14. The matching execution component according to claim 13, wherein, The protrusion includes a first blocking surface located on its proximal side, the first blocking surface being a plane perpendicular to the axial direction; The second blocking structure further includes a second blocking surface located on its distal side, the second blocking surface being a plane perpendicular to the axial direction.

15. The matching execution component according to claim 13 or 14, wherein, The anastomosis execution component is configured such that, as the cutting component completes the cutting and moves toward the proximal end along the axial direction, the first inclined surface contacts the second inclined surface, and, as the cutting component moves, the first inclined surface slides relative to the second inclined surface, such that the second blocking structure applies a force to the protrusion to raise the first blocking structure in the second direction.

16. The matching execution component according to claim 15, wherein, The first inclined surface is a first curved surface, and the second blocking structure is a second curved surface near the top surface of the first blocking structure in the second direction. The first curved surface and the second curved surface are connected and form a smooth transition integral curved surface, and the integral curved surface is a convex surface. The protrusion also has a third bottom surface, which is smoothly connected to the second inclined surface; The protrusion and the second blocking structure are configured such that, as the cutting assembly moves along the axial direction toward the proximal end, the second inclined surface and the third bottom surface successively slide over the integral curved surface.

17. The matching execution component according to any one of claims 9-16, wherein, When the clamp assembly is closed and the cutting assembly is not moved, the second blocking structure is located near the protrusion, and there is a first gap between the second blocking structure and the protrusion in the axial direction.

18. The matching execution component according to any one of claims 5-7, wherein, The staple cartridge assembly includes a staple cartridge holder and a staple cartridge detachably mounted on the staple cartridge holder, the staple cartridge holder having a fourth bottom surface facing the staple cartridge; The staple cartridge assembly further includes an inclined mounting member connected to the staple cartridge base and having a second gap in the second direction between the inclined mounting member and the fourth bottom surface, the second gap being for accommodating the proximal end of the staple cartridge, the inclined mounting member being configured to prevent the staple cartridge from being mounted onto the staple cartridge base in a horizontal direction parallel to the fourth bottom surface.

19. The matching execution component according to claim 18, wherein, The inclined mounting component is configured as follows: During installation, as the staple cartridge is pushed from the distal end of the staple cartridge holder to the proximal end of the staple cartridge holder along the horizontal direction, the inclined mounting member is positioned proximal to the staple cartridge in the horizontal direction to prevent the proximal end of the staple cartridge from being installed to the proximal end of the staple cartridge holder along the horizontal direction, thereby preventing the staple cartridge from being installed onto the staple cartridge holder along the horizontal direction.

20. The matching execution component according to claim 19, wherein, The staple cartridge also includes at least one sidewall that is connected to and intersects with the fourth bottom surface, and the inclined mounting member is connected to the sidewall and protrudes from the sidewall toward the inside of the sidewall.

21. The matching execution component according to claim 20, wherein, The inclined mounting member is a sheet extending along the fourth bottom surface parallel to the staple cartridge seat.

22. An anastomosis device, comprising a drive mechanism, a drive rod, and an anastomosis execution component according to any one of claims 1-21, wherein a proximal end of the drive rod is connected to the drive mechanism, a distal end of the drive rod is connected to the cutting component, and the drive mechanism drives the cutting component to move along the axial direction via the drive rod.

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