Anastomosis assembly and anastomat with same

Abstract

The invention provides an anastomosis assembly and an anastomat with the anastomosis assembly. The anastomosis assembly is provided with a working cavity. And the working cavity comprises a first driving motor and a cutting knife. The first driving motor comprises a motor shaft. The cutting knife comprises a knife head arranged in the working cavity and a flexible knife rod connected with the knife head, the flexible knife rod comprises a connecting end far away from the knife head, and the connecting end is fixedly connected with the motor shaft. The flexible cutter bar is configured to be driven by the first driving motor to be wound around the motor shaft and drive the cutter head to move in the working cavity. Compared with the prior art, according to the anastomosis assembly, the first driving motor is driven, so that the flexible cutter bar is wound on the motor shaft, the occupied space of the anastomosis assembly in the extending direction of the flexible cutter bar can be effectively shortened, the length of the anastomosis assembly is reduced, and the structure of the anastomosis assembly is more compact and portable. The flexible cutter bar drives the cutter head to move in the working cavity so as to complete the cutting task, and the operation flexibility of the anastomosis assembly in the limited space is improved.

Description

Technical Field

[0001] The present invention relates to the field of lighting technology, and in particular to an anastomosis assembly and an anastomosis device having the same. Background Art

[0002] In the field of medical surgery, especially in sleeve gastrectomy, cutting and anastomosis are one of the key steps. However, due to the particularity and complexity of the surgical site, the distance required for cutting and anastomosis is often long. Traditional cutting and staplers usually use hard blades. When facing long-distance cutting, the length of the hard blade also increases.

[0003] In order to drive the long hard knife rod, the traditional design often adopts a screw transmission mechanism. As a result, the length of the barrel of the stapler is almost twice the length of the knife rod. This not only increases the size and weight of the stapler, but also limits its flexibility and operability in a narrow surgical space.

[0004] In view of this, it is indeed necessary to propose improvements to the existing staplers to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a stapler assembly and a stapler having the same, which can retract a flexible knife rod to reduce the volume of the stapler.

[0006] To achieve the above-mentioned purpose, the technical solution of the present invention provides an anastomosis assembly having a working cavity, including:

[0007] A first drive motor includes a motor shaft; and

[0008] The cutting knife comprises a cutting head arranged in a working chamber and a flexible cutting rod connected to the cutting head, wherein the flexible cutting rod comprises a connecting end away from the cutting head, and the connecting end is fixedly connected to the motor shaft.

[0009] The flexible knife rod is configured to be driven by the first drive motor to be wound around the motor shaft and drive the knife head to move in the working chamber.

[0010] Optionally, the flexible knife rod extends in a first direction, the motor shaft extends in a second direction perpendicular to the first direction, and the motor shaft rotates to drive the connecting end to be wrapped around the motor shaft, and drives the flexible knife rod to be stacked and wrapped around the motor shaft.

[0011] Optionally, a nail magazine seat is also included, which includes a first end close to the first drive motor and a second end away from the first drive motor, and a guide groove for the flexible knife rod to pass through is provided at a position of the nail magazine seat close to the second end.

[0012] Optionally, it also includes a nail pushing slider, which is arranged on the side of the cutter head facing the second end. The nail pushing slider is provided with a clamping groove, which includes an opening close to the second end and an abutting portion arranged opposite to the opening; the cutter head is at least partially located in the clamping groove and abuts against the abutting portion.

[0013] Optionally, a first clamping portion is provided on the cutter head, and a second clamping portion for clamping with the first clamping portion is provided on the flexible cutter rod; the flexible cutter rod also includes a lower side facing the nail magazine seat, and an avoidance groove for avoiding the nail pushing slider is provided at a position near the second clamping portion on the lower side.

[0014] Optionally, it also includes a nail anvil seat, which is surrounded by a nail anvil seat and a nail magazine seat to form a working cavity. The nail anvil seat is rotatably connected to the second end. At the first end, the nail anvil seat and the nail magazine seat are configured to be able to approach or move away from each other.

[0015] Optionally, the blade head includes an upper beam and a lower beam that are arranged relatively to each other, and a blade located between the upper beam and the lower beam, and the blade is arranged at an angle and faces the first end; a first sliding groove for the upper beam to slide is provided on the nail support seat, and a second sliding groove for the lower beam to slide is provided on the nail magazine seat.

[0016] Optionally, it also includes a second drive motor and a lifting arm, one end of the lifting arm is drivingly connected to the second drive motor, and the other end is connected to the nail support seat, and is configured to drive the nail support seat away from or close to the nail magazine seat through the second drive motor.

[0017] Optionally, the lifting arm is provided with a slot for the flexible knife rod to pass through.

[0018] To achieve the above-mentioned purpose, the technical solution of the present invention further provides a stapler including the above-mentioned stapler assembly.

[0019] Compared with the prior art, the technical solution of the embodiment of the present invention has the following beneficial effects:

[0020] The anastomosis assembly of the present invention drives the first drive motor so that the flexible knife rod is wound around the motor shaft, which can effectively shorten the space occupied by the anastomosis assembly in the extension direction of the flexible knife rod, reduce the length of the anastomosis assembly, and make the structure of the anastomosis assembly more compact and portable. The first drive motor drives the flexible knife rod to be wound around the motor shaft and drives the knife head to move in the working cavity to accurately complete the cutting task, thereby improving the flexibility and convenience of the anastomosis assembly in performing medical surgery in a limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of an anastomosis assembly according to a preferred embodiment of the present invention;

[0022] Figure 2 yes Figure 1 a cross-sectional view of the anastomotic assembly;

[0023] Figure 3 is a schematic structural diagram of a cutting knife in accordance with a preferred embodiment of the present invention;

[0024] Figure 4 yes Figure 3 Schematic diagram of the structure of the middle cutter head;

[0025] Figure 5 This is a schematic structural diagram of a nail magazine seat according to a preferred embodiment of the present invention;

[0026] Figure 6 is a schematic structural diagram of an anvil according to a preferred embodiment of the present invention;

[0027] Figure 7 yes Figure 1 Assembly drawing of the middle nail magazine, cutting knife and nail magazine seat;

[0028] Figure 8 yes Figure 7 Partial view of the assembly of the middle cutting knife and the push pin slider;

[0029] Fig. 9 yes Figure 8 A schematic diagram of the structure of the push pin slider in FIG.

[0030] Fig.10 It is a schematic diagram of the structure of a lifting arm in accordance with a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] It should be noted here that in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0033] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0034] See also Figures 1 to 10As shown, an embodiment of the present invention provides a stapler (not shown) including a stapler assembly 100. The stapler assembly 100 includes a gun barrel 1, a cutting knife 2, and a driving assembly 8. An anvil 4 and a staple magazine seat 5 are provided in the gun barrel 1. The cutting knife 2 is connected between the anvil 4 and the staple magazine seat 5, and can slide relative to the anvil 4 and the staple magazine seat 5. The driving assembly 8 can drive the anvil 4 and the staple magazine seat 5 to be configured to move away from or close to each other. That is, the opening and closing of the gun barrel 1 is realized. The anvil 4 and the staple magazine seat 5 that move away from each other have a roughly V-shaped shape. The stapler assembly 100 can ensure that the tissue is cut after it has been completely clamped, has a greater clamping force, and can reduce tissue slippage during the anastomosis process, thereby improving the anastomosis efficiency.

[0035] The length of the gun barrel 1 in the existing stapler is almost twice the length of the knife bar of the cutting knife 2. The gun barrel 1 is used to accommodate the knife bar of the cutting knife 2. When the cutting knife 2 cuts, the knife bar slides on the staple cartridge seat 5. When the cutting knife 2 finishes cutting, the knife bar retreats to the side of the gun barrel 1 away from the staple cartridge seat 5.

[0036] See also Figure 1 to Figure 2 As shown, the nail support 4 and the nail magazine support 5 are arranged to form a working chamber 3. The working chamber 3 includes a first driving motor 31 and a cutting knife 2. A motor shaft 311 is provided at the output end of the first driving motor 31.

[0037] See also Figure 3 to Figure 4 As shown, the cutting knife 2 includes a cutter head 21 disposed in the working chamber 3 and a flexible cutter rod 22 connected to the cutter head 21. The flexible cutter rod 22 includes a connecting end 221 away from the cutter head 21, and the connecting end 221 is fixedly connected to the motor shaft 311. The flexible cutter rod 22 is configured to be driven by the first drive motor 31 to be wound around the motor shaft 311, and drive the cutter head 21 to move in the working chamber 3.

[0038] In this embodiment, by driving the first drive motor 31, the flexible knife rod 22 is wound around the motor shaft 311, which can effectively shorten the length of the gun barrel 1 required for the flexible knife rod 22 to retreat, thereby shortening the space occupied by the anastomosis assembly 100 in the extension direction of the flexible knife rod 22, reducing the length of the anastomosis assembly 100, and making the structure of the anastomosis assembly 100 more compact and portable, suitable for medical operations that need to be performed in a limited space. The first drive motor 31 drives the flexible knife rod 22 to be wound around the motor shaft 311, and drives the knife head 21 to move in the working chamber 3 to achieve the cutting task of the cutting knife 2.

[0039] The cutter head 21 includes an upper beam 211 and a lower beam 212 which are arranged relatively to each other, and a blade 213 located between the upper beam 211 and the lower beam 212. The upper beam 211 is connected to the anvil seat 4, and the lower beam 212 is connected to the staple cartridge seat 5. Among them, the blade 213 is arranged close to the upper beam 211, and the flexible knife rod 22 is arranged close to the lower beam 212. It can be understood that in the initial state, the cutter head 21 is located at the end of the anvil seat 4 and the staple cartridge seat 5 away from the first drive motor 31, and the flexible knife rod 22 extends from the cutter head 21 toward the end of the anvil seat 4 and the staple cartridge seat 5 close to the first drive motor 31, and the tissue is located on the side of the cutter head 21 close to the flexible knife rod 22. When the stapler is cutting, the first drive motor 31 drives the flexible knife rod 22 to move, thereby driving the blade 213 on the cutter head 21 to cut the tissue. Preferably, the blade 213 is arranged obliquely and faces the first drive motor 31. Such a configuration enables the blade 213 to cut into the target tissue more smoothly during cutting, thereby reducing cutting resistance. The blade head 21 is provided with a first clamping portion 214, and in this embodiment, the first clamping portion 214 is an opening.

[0040] Preferably, the blade 213 has an inclination angle of 30°-45° relative to the flexible blade rod 22. The blade 213 is inclined toward the flexible blade rod 22, and the blade 213 is an inclined surface, which can limit the tissue under the blade 213 when cutting the tissue, thereby improving the cutting efficiency.

[0041] In some embodiments, the cutter head 21 is an integrally formed structure. The upper beam 211 and the lower beam 212 are substantially rectangular. The length of the lower beam 212 is less than the length of the upper beam 211.

[0042] In this embodiment, the upper beam 211 and the lower beam 212 are longer and wider, which can provide a greater clamping force after the nail anvil 4 and the nail magazine seat 5 are closed, so that the nail anvil 4 and the nail magazine seat 5 remain in a closed state.

[0043] The first direction is defined as the length extension direction of the anastomosis assembly 100, and the second direction is defined as the height extension direction of the anastomosis assembly 100. The flexible knife rod 22 extends along the first direction, and the motor shaft 311 extends along the second direction perpendicular to the first direction. The motor shaft 311 rotates, driving the connecting end 221 to be wound around the motor shaft 311, and driving the flexible knife rod 22 to be stacked and wound around the motor shaft 311. Through the stacking and winding of the flexible knife rod 22, the cutting knife 2 can be flexibly moved and retracted in the working chamber 3, thereby adapting to the cutting requirements at different positions.

[0044] Preferably, the motor shaft 311 rotates in a direction perpendicular to the extension direction of the flexible knife rod 22, which can ensure that the flexible knife rod 22 maintains a stable motion trajectory during the winding process, which is conducive to stable cutting by the cutting knife 2.

[0045] In some embodiments, a winding member (not shown) is further provided in the working chamber 3, and the flexible knife rod 22 abuts against the motor shaft 311 and the winding member, and surrounds both. The motor shaft 311 rotates, driving the connecting end 221 to be wound onto the motor shaft 311, and driving the flexible knife rod 22 to be stacked and wound onto the motor shaft 311 and the winding member. The setting of the winding member provides an additional support point for the flexible knife rod 22, so that when the motor shaft 311 rotates, the flexible knife rod 22 can be wound and unfolded more stably, and the winding radius of the flexible knife rod 22 is increased.

[0046] The flexible knife rod 22 is provided with a second clamping portion 222 for clamping with the first clamping portion 214. In this embodiment, the second clamping portion 222 is a protrusion that matches the shape of the first clamping portion 214. The second clamping portion 222 on the flexible knife rod 22 matches the first clamping portion 214 on the knife head 21. This clamping design ensures a stable connection between the flexible knife rod 22 and the knife head 21, avoiding accidents caused by loosening or falling off during surgery.

[0047] The flexible knife bar 22 further includes a lower side 223 facing the nail magazine seat 5, and a position of the lower side 223 near the second clamping portion 222 is provided with an avoidance groove 224 for avoiding the nail pushing slider 6. The avoidance groove 224 provided on the lower side 223 cleverly avoids the movement track of the nail pushing slider 6 in the nail magazine seat 5, preventing the nail pushing slider 6 from interfering with the flexible knife bar 22 during the operation.

[0048] See also Figure 5 to Figure 6 As shown, the nail magazine seat 5 includes a first end 51 close to the first drive motor 31 and a second end 52 away from the first drive motor 31. The position of the nail magazine seat 5 close to the second end 52 is provided with a guide groove 53 for the flexible knife rod 22 to pass through, thereby ensuring the accurate guidance of the flexible knife rod 22 during the operation and avoiding operational errors caused by deviation or shaking.

[0049] The nail support seat 4 is provided with a first slide groove 41. The nail magazine seat 5 is provided with a second slide groove 54. The first slide groove 41 and the second slide groove 54 extend along a first direction. The first slide groove 41 is for the upper beam 211 to slide, and the second slide groove 54 is for the lower beam 212 to slide. The upper beam and the lower beam 212 can move smoothly along a predetermined trajectory, ensuring the stable movement of the cutting knife 2 and helping to protect the flexible knife rod 22.

[0050] Preferably, the first slide groove 41 is located in the middle of the nail support 4, and the second slide groove 54 is located in the middle of the nail magazine seat 5. The first slide groove 41 and the second slide groove 54 not only guide the cutting knife 2, but also limit the cutting knife 2 when it is cutting, so as to prevent the knife head 21 from shaking, and the cutting stability is better.

[0051] In the initial state, the first drive motor 31 rotates to drive the flexible knife rod 22 to move to the second end 52, and the upper beam 211 is accommodated in the nail support 4. At this time, the nail support 4 can rotate relative to the nail magazine seat 5, so that the nail support 4 and the nail magazine seat 5 are opened to facilitate the entry of tissue. Then the nail support 4 and the nail magazine seat 5 are controlled to close. At this time, the first drive motor 31 rotates in the opposite direction to drive the flexible knife rod 22 to move toward the first end 51, and the upper beam 211 enters the first slide groove 41, further limiting the relative position of the nail support 4 and the nail magazine seat 5 so that the nail support 4 and the nail magazine seat 5 remain in a closed state. At the same time, due to the widening and lengthening of the upper beam 211 and the lower beam 212, it can be ensured that the tissue is cut after being fully clamped, providing a greater clamping force for the anastomosis assembly 100, and reducing tissue slippage during the anastomosis process, thereby improving the anastomosis efficiency.

[0052] See also Figures 7 to 9 As shown, a nail pushing slider 6 and a nail magazine 7 are installed in the nail magazine seat 5, and the nail pushing slider 6 and the nail magazine 7 are assembled together, and then the two are installed on the nail magazine seat 5. The nail pushing slider 6 is arranged on the side of the cutter head 21 facing the second end 52. The nail pushing slider 6 is provided with a clamping groove 61, and the clamping groove 61 includes an opening 611 close to the second end 52 and an abutment portion 612 arranged opposite to the opening 611. The cutter head 21 is at least partially located in the clamping groove 61 and abuts against the abutment portion 612. Such a setting plays a limiting role on the cutter head 21 and controls the clamping depth of the cutter head 21. The nail pushing slider 6 is clamped on the side of the cutter head 21 away from the blade 213, that is, the nail pushing slider 6 is arranged close to the lower beam 212, and the flexible knife rod 22 is connected to the nail pushing slider 6. The nail pushing slider 6 can slide along the first direction following the cutter head 21. Specifically, the nail pushing slider 6 is located on the outer wall surface of the second slide groove 54 and slides on the outer wall surface of the second slide groove 54. It ensures that the cutting and stapling actions are carried out almost synchronously, avoiding surgical errors caused by uncoordinated movements.

[0053] The staple cartridge 7 is provided with a plurality of staples 71 and a staple pusher 72 connected with the plurality of staples 71. The staple pusher slider 6 extends into the staple cartridge 7 and cooperates with the staple pusher 72 to push the staples 71 toward the staple support 4 for staple anastomosis. Specifically, after the tissue enters between the staple support 4 and the staple cartridge seat 5, the first drive motor 31 drives the flexible knife rod 22 to move toward the first end 51, driving the knife head 21 to slide and then driving the staple pusher slider 6 to slide, and the staple pusher slider 6 gradually pushes the staple pusher 72 toward the staple support 4, and then the staples 71 pass through the tissue and are formed and stapled under the action of the staple support 4, and then the knife head 21 cuts the stapled tissue.

[0054] In some embodiments, the driving assembly 8 includes a driving module, which is used to drive the opening and closing of the anastomosis assembly 100.

[0055] In other embodiments, the driving assembly 8 includes a first driving motor 31 and a driving module, the first driving motor 31 is used to control the forward / backward movement of the flexible knife rod 22, and the driving module is used to drive the opening and closing of the anastomosis assembly 100.

[0056] Please combine Figure 1 , Figure 2 and Fig.10 As shown, the driving module includes a driving module 81, a lifting arm 82, and a driving arm 83 connecting the stapling assembly 100 and the driving module 81. The driving module 81 is configured to drive the driving arm 83 to move linearly. One end of the lifting arm 82 close to the driving arm 83 is rotatably connected to the driving arm 83 to form a cam structure, and the end of the lifting arm 82 close to the driving arm 83 can move under the drive of the driving arm 83. In this way, by controlling the driving module 81, the driving arm 83 can be driven to move, so that the lifting arm 82 also moves accordingly, thereby controlling the opening and closing range of the nail support 4 and the nail magazine seat 5.

[0057] The lifting arm 82 is provided with a slot 821 for the flexible knife bar 22 to pass through, which plays a certain role in limiting the flexible knife bar 22. Such a configuration enables the flexible knife bar 22 to move flexibly under the guidance of the lifting arm 82, thereby adapting to cutting requirements at different angles and positions.

[0058] One end of the lifting arm 82 is transmission-connected to the second driving motor 811, and the other end is connected to the nail anvil 4, and is configured to drive the nail anvil 4 away from or close to the nail magazine seat 5 through the second driving motor 811. A first guide groove 5342 is provided at a position of the nail anvil 4 close to the first end 51, and a second guide groove 53 corresponding to the first guide groove 5342 is provided at the first end 51 of the nail magazine seat 5. Guide shafts 822 are provided at both ends of the lifting arm 82, and the guide shafts 822 are correspondingly slidably arranged in the first guide groove 5342 and the second guide groove 53. The lifting arm 82 slides along the first guide groove 5342 and the second guide groove 53 through the guide shaft 822, and the lifting arm 82 will support the nail anvil 4, so that the nail anvil 4 rotates relative to the second end 52 of the nail magazine seat 5. Specifically, at the first end 51, the nail anvil 4 and the nail magazine seat 5 are configured to be able to move closer to or away from each other.

[0059] In some embodiments, a first guide hole and a second guide hole are respectively provided at both ends of the lifting arm 82, and the first guide hole and the second guide hole are respectively aligned with the first guide shaft 822 and the second guide shaft 822. The lifting arm 82 is connected to the nail holder 4 by passing the pin through the first guide hole and the first guide shaft 822. The lifting arm 82 is connected to the nail magazine seat 5 by passing the pin through the second guide hole and the second guide shaft 822.

[0060] In this embodiment, the driving module 81 includes a second driving motor 811 and a screw 812 that can rotate under the drive of the second driving motor 811. A transmission member 813 is provided on the screw 812, and the driving arm 83 is fixedly connected to the transmission member 813 and can move linearly with the rotation of the screw 812 under the drive of the transmission member 813.

[0061] In some embodiments, the screw rod 812 can be replaced by a telescopic rod, and the second driving motor 811 drives the telescopic rod to extend and retract, thereby driving the transmission member 813 to move, thereby driving the driving arm 83 to move.

[0062] In summary, the anastomosis assembly 100 of the present invention drives the first drive motor 31 so that the flexible knife rod 22 is wound around the motor shaft 311, which can effectively shorten the length of the gun barrel 1 required for the flexible knife rod 22 to retract, thereby shortening the space occupied by the anastomosis assembly 100 in the extension direction of the flexible knife rod 22. Such a configuration can reduce the length of the anastomosis assembly 100, making the structure of the anastomosis assembly 100 more compact and portable, and suitable for medical operations that need to be performed in a limited space.

[0063] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. An anastomosis assembly having a working chamber, characterized in that: include: A first drive motor includes a motor shaft; and The cutting knife comprises a cutting head arranged in the working chamber and a flexible cutting rod connected to the cutting head, wherein the flexible cutting rod comprises a connecting end away from the cutting head, and the connecting end is fixedly connected to the motor shaft. The flexible knife rod is configured to be driven by the first driving motor to be wound around the motor shaft and drive the knife head to move in the working chamber.

2. The anastomotic assembly according to claim 1, characterized in that: The flexible knife rod extends along a first direction, and the motor shaft extends along a second direction perpendicular to the first direction. The motor shaft rotates to drive the connecting end to be wound around the motor shaft, and drives the flexible knife rod to be stacked and wound around the motor shaft.

3. The anastomotic assembly according to claim 1, characterized in that: It also includes a nail magazine seat, which includes a first end close to the first drive motor and a second end away from the first drive motor, and a guide groove for the flexible knife rod to pass through the position of the nail magazine seat close to the second end.

4. The anastomotic assembly according to claim 3, characterized in that: It also includes a nail pushing slider, which is arranged on the side of the cutter head facing the second end. The nail pushing slider is provided with a clamping groove, and the clamping groove includes an opening close to the second end and an abutting portion arranged opposite to the opening; the cutter head is at least partially located in the clamping groove and abuts against the abutting portion.

5. The anastomotic assembly according to claim 4, characterized in that: The cutter head is provided with a first clamping portion, and the flexible cutter rod is provided with a second clamping portion for clamping with the first clamping portion; the flexible cutter rod also includes a lower side facing the nail magazine seat, and the lower side is provided with an avoidance groove for avoiding the nail pushing slider at a position close to the second clamping portion.

6. The anastomotic assembly according to claim 3, characterized in that: It also includes a nail anvil, which is arranged together with the nail magazine seat to form the working cavity. The nail anvil is rotatably connected to the second end. At the first end, the nail anvil and the nail magazine seat are configured to be able to approach or move away from each other.

7. The anastomotic assembly according to claim 6, characterized in that: The blade head includes an upper beam and a lower beam that are arranged relatively to each other, and a blade located between the upper beam and the lower beam, wherein the blade is arranged obliquely and faces the first end; a first sliding groove is provided on the nail support seat for the upper beam to slide, and a second sliding groove is provided on the nail magazine seat for the lower beam to slide.

8. The anastomotic assembly according to claim 6, characterized in that: It also includes a second driving motor and a lifting arm, one end of the lifting arm is drivingly connected to the second driving motor, and the other end is connected to the nail support, and is configured to drive the nail support away from or close to the nail magazine seat through the second driving motor.

9. The anastomotic assembly according to claim 8, characterized in that: The lifting arm is provided with a slot for the flexible knife rod to pass through.

10. A stapler, characterized in that: Comprising the anastomosis assembly as described in any one of claims 1-9.

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