An electric anastomat linkage

Abstract

This invention relates to the field of medical device technology, and more particularly to an electric stapler linkage device. The device includes a stapler body, with an installation head fixedly connected to one end. A fixing component is disposed inside the installation head, and a firing rod is detachably connected to the installation head via the fixing component. A firing rod is rotatably connected to the bottom of the stapler body. A limiting component is disposed inside the stapler body, and the limiting component is linked with the fixing component and the firing rod. The fixing component, through a sliding cylinder, drives a rotating rod and a fixing block to engage with a fixing slot on the firing rod, achieving quick and detachable connection of the firing rod. The limiting component, through a first sliding plate and a second sliding plate, engages with a limiting rod, achieving synchronous linkage control between the fixing component and the firing rod. This invention achieves quick installation and locking of the firing rod through the fixing component, and achieves mechanical interlocking between the installation and firing of the firing rod, and between the firing state and disassembly through the limiting component, avoiding the safety hazards of accidental firing without the firing rod installed and failure to reset after firing.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an electric stapler linkage device. Background Technology

[0002] Electric staplers are widely used medical instruments for tissue cutting and anastomosis in open and minimally invasive surgeries. They can replace traditional manual suturing, significantly improving surgical efficiency, reducing surgical difficulty, and decreasing postoperative complications. The electric stapler linkage device is a core functional component that connects the stapler body to the disposable replaceable gun barrel, enabling firing control and instrument status locking. Its performance directly determines the convenience of surgical operation, the stability of instrument use, and the safety of clinical application.

[0003] Existing electric stapler linkage devices typically employ snap-fit ​​or threaded connection structures to achieve detachable assembly of the stapler barrel and the stapler body. By operating the firing lever, an internal transmission mechanism drives the movement of the cutting blade and staple cartridge assembly within the barrel, completing the tissue cutting and stapler operation. Some devices incorporate a simple elastic locking mechanism at the barrel connection point to restrict axial movement of the barrel after it is installed, preventing accidental detachment due to stress during surgery.

[0004] However, existing electric stapler linkage devices still have the following shortcomings: First, they lack a mechanical interlock mechanism between the gun barrel installation state and the firing operation. Operators can still operate the firing lever even when the gun barrel is not installed or not fully installed, which can easily lead to a dry firing accident. This can not only cause irreversible damage to the internal transmission mechanism of the stapler, but also cause accidental injury to the surgical personnel, posing a serious safety hazard. Second, they lack an interlock mechanism between the firing state and the gun barrel disassembly. When the firing lever is in the firing position and has not been reset, operators can still forcibly disassemble the gun barrel. This can not only cause precision components such as gears and racks inside the stapler to jam or break, but may also cause the clamped tissue to suddenly fall off, leading to serious medical accidents such as intraoperative massive bleeding and anastomotic tearing, directly affecting the surgical outcome and patient prognosis.

[0005] Therefore, it is necessary to provide a new electric stapler linkage device to solve the above-mentioned technical problems. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides an electric anastomosis device linkage device.

[0007] The electric stapler linkage device provided by the present invention includes: a stapler body, one end of which is fixedly connected to an installation head, the installation head having a fixing component inside, and a gun rod detachably connected to the installation head through the fixing component; a firing rod is rotatably connected to the bottom end of the stapler body, and a limiting component is provided inside the stapler body to limit the rotation of the firing rod.

[0008] Preferably, the fixing component includes: a slide cylinder, which is slidably disposed inside the mounting head. Two first rotating shafts are symmetrically rotatably connected to one end of the slide cylinder near the gun barrel. A rotating rod is fixedly connected to the outer peripheral wall of each of the first rotating shafts, and a fixing block is fixedly connected to one end of each rotating rod near the gun barrel.

[0009] Preferably, two fixing slots are symmetrically formed on the outer peripheral wall of the end of the gun barrel near the mounting head, and the fixing slots engage with the corresponding fixing blocks.

[0010] Preferably, two torsion springs are symmetrically arranged inside the slide cylinder. One end of the torsion spring is fixedly connected to the outer peripheral wall of the corresponding first rotating shaft, and the other end of the torsion spring is fixedly connected to the inner wall of the slide cylinder. The torsion spring always has an elastic force that drives the first rotating shaft to rotate the rotating rod and the fixed block away from the fixed slot.

[0011] Preferably, the mounting head has two first guide plates symmetrically fixedly connected inside. The first guide plates are horizontally arranged, and the top and bottom ends of the slide cylinder are provided with first guide grooves. The first guide plates slide in cooperation with the corresponding first guide grooves. A second guide plate is fixedly connected to one end of each first guide plate near the gun rod. The second guide plate is inclined and is used to limit the maximum rotation angle of the rotating rod.

[0012] Preferably, the limiting component includes: a first sliding plate, which is slidably connected inside the stapler body, and the end of the first sliding plate near the gun rod is fixedly connected to the slide cylinder; a second sliding plate is fixedly connected to the bottom of the end of the first sliding plate away from the gun rod, and the second sliding plate is slidably engaged with the stapler body; a limiting rod is slidably connected inside the stapler body, and the horizontal projection of the limiting rod is Z-shaped; a limiting groove is formed at the end of the second sliding plate near the gun rod, and the limiting rod is inserted into the limiting groove.

[0013] Preferably, a first spring is provided inside the stapler body. One end of the first spring is fixedly connected to the end of the first slide plate away from the gun rod, and the other end of the first spring is fixedly connected to the inner wall of the stapler body. The first spring always has an elastic force that pushes the first slide plate to move closer to the gun rod.

[0014] Preferably, a guide rod is fixedly connected to the side of the limiting rod near the gun rod, and the guide rod is slidably engaged with the anastomosis device body. The guide rod is a rectangular cross-section rod.

[0015] Preferably, a second spring is provided inside the stapler body. One end of the second spring is fixedly connected to the end of the guide rod away from the first slide plate, and the other end of the second spring is fixedly connected to the inner wall of the stapler body. The second spring always has an elastic force that pushes the guide rod to move closer to the first slide plate.

[0016] Preferably, the end of the limiting rod away from the first sliding plate extends out of the anastomosis device body and is fixedly connected to a ball.

[0017] Compared with related technologies, the electric stapler linkage device provided by the present invention has the following beneficial effects: This invention establishes a rigid mechanical interlock mechanism between the barrel installation state and the firing operation through the linkage design of the limiting component and the fixing component. When the barrel is not inserted or not fully installed, the side wall of the second slide plate always blocks the movement path of the limiting rod, preventing the limiting rod from sliding towards the first slide plate. The end of the limiting rod closest to the second slide plate is always on the rotation path of the firing rod, thus completely restricting the rotation of the firing rod from a physical perspective.

[0018] Compared with existing devices that rely solely on electronic sensors for protection against accidental firing, the purely mechanical interlocking structure of this invention is unaffected by factors such as power failure or sensor malfunction, resulting in higher reliability and avoiding damage to the internal transmission mechanism of the stapler and accidental injury to surgical personnel caused by dry firing.

[0019] This invention innovatively links the position of the firing lever with the movement path of the limiting lever, constructing an interlocking mechanism between the firing state and the disassembly of the gun barrel. When the firing lever is in the firing position and has not been reset, the side wall of the firing lever completely blocks the movement path of the limiting lever. Even if the operator forcefully moves the ball, the limiting lever cannot exit the limiting groove, thereby locking the position of the slide and the fixing block, preventing the gun barrel from being pulled out.

[0020] This design effectively prevents operators from forcibly disassembling the gun bar before firing is complete, avoiding equipment damage such as jamming or breakage of precision internal components of the stapler. It also prevents serious medical accidents such as intraoperative massive bleeding and anastomotic tearing caused by sudden detachment of clamped tissue, thus ensuring surgical outcomes and patient safety. Attached Figure Description

[0021] Figure 1 A schematic diagram of the linkage device for the electric stapler provided by the present invention; Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the mounting head shown; Figure 3 for Figure 2 The diagram shows the structure of the rotating rod. Figure 4 for Figure 2 A schematic diagram of the cross-sectional structure of the stapler body shown; Figure 5 for Figure 1 The diagram shows the structure during gun barrel disassembly.

[0022] The following are the labeling elements in the diagram: 1. Anastomosis device body; 2. Mounting head; 3. Gun barrel; 4. Firing lever; 5. Slide cylinder; 6. First rotating shaft; 7. Rotating rod; 8. Fixing block; 9. Fixing slot; 10. Torsion spring; 11. First guide plate; 12. First guide groove; 13. Second guide plate; 14. First sliding plate; 15. Second sliding plate; 16. Limiting rod; 17. Limiting groove; 18. First spring; 19. Guide rod; 20. Second spring; 21. Dispensing ball. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the invention and are not intended to limit the invention.

[0024] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0025] like Figures 1 to 5 As shown, an electric stapler linkage device includes a stapler body 1. One end of the stapler body 1 is fixedly connected to a mounting head 2, which is a hollow structure with a fixing component inside. The mounting head 2 is detachably connected to a firing rod 3 via the fixing component. The bottom end of the stapler body 1 is rotatably connected to a firing rod 4 via a pin. A limit component is provided inside the stapler body 1, which is linked with both the fixing component and the firing rod 4 to limit the rotation of the firing rod 4.

[0026] like Figures 1 to 3 As shown, the fixing assembly includes a slide cylinder 5, which is a hollow cylindrical structure open at both ends. It is slidably disposed inside the mounting head 2, with the axis of the slide cylinder 5 coinciding with the axis of the mounting head 2, and its sliding direction consistent with the insertion direction of the gun barrel 3. Two first rotating shafts 6 are symmetrically rotatably connected to the end of the slide cylinder 5 near the gun barrel 3. The axes of the two first rotating shafts 6 are parallel to each other and perpendicular to the axis of the slide cylinder 5. A rotating rod 7 is fixedly connected to the outer peripheral wall of each first rotating shaft 6. The length direction of the rotating rod 7 is consistent with the axial direction of the slide cylinder 5. A fixing block 8 is fixedly connected to the end of the rotating rod 7 near the gun barrel 3. Two fixing slots 9 are symmetrically formed on the outer peripheral wall of the end of the gun barrel 3 near the mounting head 2. The shape of the fixing slots 9 matches the shape of the fixing blocks 8, and the fixing slots 9 engage with the corresponding fixing blocks 8.

[0027] Two torsion springs 10 are symmetrically arranged inside the slide cylinder 5, and the two torsion springs 10 are respectively sleeved on the outer periphery of the corresponding first rotating shaft 6. One end of the torsion spring 10 is fixedly connected to the outer peripheral wall of the corresponding first rotating shaft 6, and the other end of the torsion spring 10 is fixedly connected to the inner wall of the slide cylinder 5. The torsion spring 10 is always in a pre-tight state and always has an elastic force that drives the first rotating shaft 6 to drive the rotating rod 7 and the fixed block 8 to rotate away from the axis of the slide cylinder 5.

[0028] Two first guide plates 11 are symmetrically fixedly connected inside the mounting head 2. The two first guide plates 11 are located at the top and bottom of the slide cylinder 5, respectively. The first guide plates 11 are horizontally arranged, and their length direction is consistent with the sliding direction of the slide cylinder 5. The top and bottom of the slide cylinder 5 are provided with first guide grooves 12 along their sliding direction. The first guide plates 11 slide in cooperation with the corresponding first guide grooves 12 to accurately guide the sliding of the slide cylinder 5 and prevent the slide cylinder 5 from rotating circumferentially during the sliding process. A second guide plate 13 is fixedly connected to the end of each first guide plate 11 near the gun rod 3. The second guide plate 13 is inclined, and its inclination direction gradually tilts from the end near the first guide plate 11 towards the direction away from the axis of the slide cylinder 5. The inclined surface of the second guide plate 13 is opposite to the outer wall of the rotating rod 7, which is used to limit the maximum rotation angle of the rotating rod 7 when the rotating rod 7 is disengaged from the first guide plate 11.

[0029] like Figure 2 , Figures 4 to 5As shown, the limiting component includes a first sliding plate 14, which is slidably connected inside the stapler body 1, and its sliding direction is consistent with the sliding direction of the slide cylinder 5. The end of the first sliding plate 14 near the gun rod 3 is fixedly connected to the end of the slide cylinder 5, allowing the first sliding plate 14 to slide synchronously with the slide cylinder 5. A second sliding plate 15 is vertically fixedly connected to the bottom of the end of the first sliding plate 14 away from the gun rod 3. The surface of the second sliding plate 15 is perpendicular to the surface of the first sliding plate 14, and the second sliding plate 15 slides against the inner wall of the stapler body 1, with its sliding direction consistent with the sliding direction of the first sliding plate 14.

[0030] A limiting rod 16 is slidably connected inside the stapler body 1. The sliding direction of the limiting rod 16 is perpendicular to the sliding direction of the first slide plate 14. The horizontal projection of the limiting rod 16 is Z-shaped. In the use state of the stapler body 1, the end of the limiting rod 16 near the second slide plate 15 is engaged with the limiting groove 17 on the second slide plate 15, thus restricting the rotation of the firing rod 4. In the installation state of the stapler body 1, the end of the limiting rod 16 near the second slide plate 15 abuts against the side wall of the second slide plate 15. At this time, the end of the limiting rod 16 near the second slide plate 15 is located on the side of the firing rod 4 near the gun barrel 3, and the limiting rod 16 is located on the rotation path of the top of the firing rod 4 to restrict the rotation of the firing rod 4. The end of the second slide plate 15 near the gun barrel 3 has a limiting groove 17 that matches the shape of the end of the limiting rod 16, and the limiting rod 16 is engaged with the limiting groove 17.

[0031] The stapler body 1 is equipped with a first spring 18 inside, and the axis of the first spring 18 is consistent with the sliding direction of the first slide plate 14. One end of the first spring 18 is fixedly connected to the end of the first slide plate 14 away from the gun rod 3, and the other end of the first spring 18 is fixedly connected to the inner wall of the stapler body 1. The first spring 18 is always in a compressed state and always has an elastic force that pushes the first slide plate 14 to move closer to the gun rod 3.

[0032] A guide rod 19 is fixedly connected to the side of the limiting rod 16 near the gun rod 3. The axis of the guide rod 19 is consistent with the sliding direction of the limiting rod 16, and the guide rod 19 slides in contact with the inner wall of the anastomosis device body 1. The guide rod 19 is a rectangular cross-section rod used to guide the sliding of the limiting rod 16, prevent the limiting rod 16 from rotating circumferentially during the sliding process, and ensure that the limiting rod 16 can be accurately inserted into the limiting groove 17.

[0033] The stapler body 1 is equipped with a second spring 20, the axis of which is aligned with the axis of the guide rod 19. One end of the second spring 20 is fixedly connected to the end of the guide rod 19 away from the first slide plate 14, and the other end of the second spring 20 is fixedly connected to the inner wall of the stapler body 1. The second spring 20 is always in a compressed state and always has an elastic force that pushes the guide rod 19 toward the direction closer to the first slide plate 14.

[0034] The end of the limiting rod 16 away from the first sliding plate 14 extends out of the anastomosis device body 1 and is fixedly connected to a ball 21. The diameter of the ball 21 is larger than the diameter of the limiting rod 16, so that the operator can easily move the limiting rod 16 with their fingers.

[0035] The working principle of the electric stapler linkage device provided by this invention is as follows: Gun barrel 3 installation process: When it is necessary to install the gun rod 3, align the connecting end of the gun rod 3 with the opening of the mounting head 2 and insert it along the axial direction. The end of the gun rod 3 first contacts the end of the slide cylinder 5. As the gun rod 3 continues to be inserted, the gun rod 3 pushes the slide cylinder 5 against the elastic force of the first spring 18 and slides towards the stapler body 1. The slide cylinder 5 slides smoothly along the first guide plate 11. When the slide cylinder 5 slides, it simultaneously drives the first slide plate 14 and the second slide plate 15 to slide towards the stapler body 1.

[0036] Simultaneously, the slide cylinder 5 drives the two rotating rods 7 and the fixing block 8 to move synchronously towards the anastomosis device body 1. When the outer wall of the rotating rod 7 contacts the inclined surface of the second guide plate 13, the connection between the first guide plate 11 and the second guide plate 13 applies a component force pointing towards the axis of the slide cylinder 5 to the rotating rod 7, causing the rotating rod 7 to overcome the elastic force of the torsion spring 10 and rotate around the first rotating shaft 6 towards the axis of the slide cylinder 5, thereby driving the fixing block 8 to move towards the outer peripheral wall of the gun rod 3. When the slide cylinder 5 slides to the predetermined position, the fixing block 8 is completely engaged in the fixing groove 9 on the outer peripheral wall of the gun rod 3, realizing a firm fixed connection between the gun rod 3 and the mounting head 2.

[0037] At this moment, the limiting groove 17 on the second slide plate 15 slides precisely to one side of the limiting rod 16, and the limiting groove 17 on the second slide plate 15 is completely aligned with the end of the limiting rod 16. Under the elastic force of the second spring 20, the guide rod 19 drives the limiting rod 16 to slide towards the first slide plate 14, so that the end of the limiting rod 16 near the second slide plate 15 is fully inserted into the limiting groove 17. At the same time, the end of the limiting rod 16 near the second slide plate 15 is disengaged from the rotation path of the firing lever 4, completely releasing the rotation restriction on the firing lever 4, at which point the firing lever 4 can be normally operated.

[0038] Firing procedure: Once the gun barrel 3 is installed and the limiting rod 16 is inserted into the limiting groove 17, the operator can operate the firing rod 4 to rotate around its axis of rotation with the anastomosis device body 1, completing the anastomosis operation. Throughout the firing process, because the limiting rod 16 is inserted into the limiting groove 17, it restricts the sliding of the second slide plate 15 and the first slide plate 14 towards the gun barrel 3, thus completely locking the position of the slide cylinder 5. The first guide plate 11 always prevents the rotating rod 7 from rotating, ensuring that the fixing block 8 remains within the fixing groove 9. The gun barrel 3 will not accidentally fall off due to force during firing, ensuring the stability and safety of the anastomosis operation.

[0039] After the firing and reset process is completed, the operator releases the firing lever 4. The firing lever 4 automatically resets to its initial position under the action of the internal reset mechanism of the stapler body 1. At this time, the side wall of the firing lever 4 no longer obstructs the movement path of the limiting rod 16, preparing for the subsequent disassembly of the gun barrel 3.

[0040] Disassembly process of gun barrel 3: When it is necessary to disassemble the gun barrel 3, the operator first uses their finger to flick the lever 21, causing the limiting rod 16 and guide rod 19 to slide away from the first sliding plate 14 against the elastic force of the second spring 20, so that the end of the limiting rod 16 is completely out of the limiting groove 17. At this time, the elastic force of the first spring 18 is released, pushing the first sliding plate 14 to slide closer to the gun barrel 3. The first sliding plate 14 simultaneously drives the slide cylinder 5 and the second sliding plate 15 to slide closer to the gun barrel 3.

[0041] When the slide cylinder 5 slides, it drives the two rotating rods 7 and the fixing block 8 to move synchronously towards the gun barrel 3. When the outer wall of the rotating rod 7 is completely disengaged from the first guide plate 11, under the elastic force of the torsion spring 10, the first rotating shaft 6 drives the rotating rod 7 to rotate away from the axis of the slide cylinder 5, and abuts against the inclined surface of the second guide plate 13, thereby driving the fixing block 8 to move away from the outer peripheral wall of the gun barrel 3, so that the fixing block 8 is completely disengaged from the fixing slot 9. At this time, the fixed connection between the gun barrel 3 and the mounting head 2 is completely released, and the operator can easily pull the gun barrel 3 out of the mounting head 2.

[0042] Specific implementation of the safety interlock mechanism: Accidental firing protection when the barrel 3 is not installed: When the barrel 3 is not inserted into the mounting head 2, the first sliding plate 14 and the second sliding plate 15 are in their initial positions close to the barrel 3 under the elastic force of the first spring 18. At this time, the side wall of the second sliding plate 15 completely blocks the end of the limiting rod 16, and the limiting rod 16 cannot slide towards the first sliding plate 14. Therefore, the end of the limiting rod 16 near the second sliding plate 15 is always on the rotation path of the firing lever 4, completely blocking the rotation of the firing lever 4, and physically preventing the operator from accidentally operating the firing lever 4 when the barrel 3 is not installed.

[0043] Protection against removal of the gun when the firing lever 4 is not reset: When the firing lever 4 is in the firing position and has not been reset, the side wall of the firing lever 4 completely blocks the movement path of the limiting lever 16. At this time, even if the operator forcefully moves the ball 21, the limiting lever 16 cannot slide away from the first slide plate 14. Therefore, the end of the limiting lever 16 cannot exit the limiting groove 17, and the first slide plate 14 and slide cylinder 5 cannot be reset under the action of the first spring 18. The fixing block 8 is always firmly locked in the fixing groove 9, and the gun barrel 3 cannot be pulled out. Only when the firing lever 4 is fully reset and the movement path of the limiting lever 16 is released, can the operator move the ball 21 to make the limiting lever 16 exit the limiting groove 17, and then smoothly disassemble the gun barrel 3. This effectively prevents equipment damage and misalignment caused by forcibly disassembling the gun barrel 3 in the firing state.

[0044] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A linkage device for an electric stapler, characterized in that, include: The stapler body (1) has a mounting head (2) fixedly connected to one end. The mounting head (2) has a fixing component inside. The mounting head (2) is detachably connected to a gun rod (3) through the fixing component. The bottom end of the stapler body (1) is rotatably connected to a firing rod (4). The stapler body (1) has a limiting component inside. The limiting component is used to limit the rotation of the firing rod (4).

2. The electric stapler linkage device according to claim 1, characterized in that, The fixing component includes a slide cylinder (5), which is slidably disposed inside the mounting head (2). Two first rotating shafts (6) are symmetrically rotatably connected to one end of the slide cylinder (5) near the gun rod (3). Rotating rods (7) are fixedly connected to the outer peripheral walls of the first rotating shafts (6). Fixing blocks (8) are fixedly connected to one end of the rotating rods (7) near the gun rod (3).

3. The electric stapler linkage device according to claim 2, characterized in that, Two fixing slots (9) are symmetrically opened on the outer peripheral wall of the end of the gun barrel (3) near the mounting head (2), and the fixing slots (9) are engaged with the corresponding fixing blocks (8).

4. The electric stapler linkage device according to claim 2, characterized in that, Two torsion springs (10) are symmetrically arranged inside the slide cylinder (5). One end of the torsion spring (10) is fixedly connected to the outer peripheral wall of the corresponding first rotating shaft (6), and the other end of the torsion spring (10) is fixedly connected to the inner wall of the slide cylinder (5). The torsion spring (10) always has an elastic force that drives the first rotating shaft (6) to drive the rotating rod (7) and the fixed block (8) to rotate away from the fixed slot (9).

5. The electric stapler linkage device according to claim 4, characterized in that, The mounting head (2) has two first guide plates (11) symmetrically fixedly connected inside. The first guide plates (11) are horizontally arranged. The top and bottom ends of the slide cylinder (5) are provided with first guide grooves (12). The first guide plates (11) slide in cooperation with the corresponding first guide grooves (12). The first guide plates (11) are fixedly connected to a second guide plate (13) at the end near the gun rod (3). The second guide plate (13) is inclined and is used to limit the maximum rotation angle of the rotating rod (7).

6. The electric stapler linkage device according to claim 2, characterized in that, The limiting component includes a first sliding plate (14), which is slidably connected inside the stapler body (1). The end of the first sliding plate (14) near the gun rod (3) is fixedly connected to the slide cylinder (5). A second sliding plate (15) is fixedly connected to the bottom of the end of the first sliding plate (14) away from the gun rod (3). The second sliding plate (15) is slidably engaged with the stapler body (1). A limiting rod (16) is slidably connected inside the stapler body (1). The horizontal projection of the limiting rod (16) is Z-shaped. A limiting groove (17) is opened at the end of the second sliding plate (15) near the gun rod (3). The limiting rod (16) is inserted into the limiting groove (17).

7. The electric stapler linkage device according to claim 6, characterized in that, The stapler body (1) is provided with a first spring (18) inside. One end of the first spring (18) is fixedly connected to the end of the first slide plate (14) away from the gun rod (3), and the other end of the first spring (18) is fixedly connected to the inner wall of the stapler body (1). The first spring (18) always has an elastic force that pushes the first slide plate (14) to move closer to the gun rod (3).

8. The electric stapler linkage device according to claim 6, characterized in that, The limiting rod (16) is fixedly connected to a guide rod (19) on the side near the gun rod (3). The guide rod (19) slides with the anastomosis device body (1). The guide rod (19) is a rectangular cross-section rod.

9. The electric stapler linkage device according to claim 8, characterized in that, The stapler body (1) is provided with a second spring (20) inside. One end of the second spring (20) is fixedly connected to the end of the guide rod (19) away from the first slide plate (14), and the other end of the second spring (20) is fixedly connected to the inner wall of the stapler body (1). The second spring (20) always has an elastic force that pushes the guide rod (19) to move closer to the first slide plate (14).

10. The electric stapler linkage device according to claim 8, characterized in that, The end of the limiting rod (16) away from the first sliding plate (14) extends out of the anastomosis device body (1) and is fixedly connected to a ball (21).

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