An adjustable anastomat and biopsy cutting device

Abstract

This invention relates to the field of biopsy cutting technology, and specifically discloses an adjustable anastomosis device and a biopsy cutting apparatus, including a connecting base and a cutting assembly. A second connecting cylinder is fixedly connected to the front end of the connecting base. A first connecting cylinder is connected to the free end of the second connecting cylinder through a limiting assembly. A top clamp is hinged to the free end of the first connecting cylinder. A clamp seat is hinged to the bottom end of the top clamp through a pair of collars. The cutting assembly includes a pair of staple seats disposed between the clamp seats. A cutting blade is slidably mounted on the inner side of each of the two staple seats. A support assembly is disposed between the two cutting blades. The cutting assembly of this invention can simultaneously sample the cutting edge when cutting a tumor, and can control the direction of the anastomosis side on the cutting edge. This allows the device to perform unilateral or bilateral anastomosis on the cutting edge while sampling the tissue at the cutting edge, helping medical personnel to reconstruct organ function in some scenarios. At the same time, the direction and number of anastomosis sides can be selected by adjusting the type of staple seats installed.

Description

Technical Field

[0001] This invention relates to the field of biopsy cutting technology, and more specifically, to an adjustable stapler and a biopsy cutting apparatus. Background Technology

[0002] Surgical staplers are instruments used in surgery to replace traditional manual cutting and suturing. Their core purpose is to simultaneously sever and anastomose (close) tissues in a single procedure. Surgical staplers are key instruments in surgery, widely used for the resection, transection, and anastomosis of organs and tissues such as the gastrointestinal tract, biliary tract, and pancreas. Compared to manual suturing, these instruments are easier to operate, significantly shorten surgical time, improve anastomosis quality, and offer advantages such as high efficiency, reliability, and fewer postoperative complications.

[0003] However, existing cutting and anastomosing devices suture both sides simultaneously after cutting. In clinical practice, such as in tumor surgeries of the hepatobiliary ducts and gastrointestinal tracts, after tumor resection, it is necessary to perform a biopsy of the resected site to check whether the tumor has met the criteria for radical resection. Existing cutting and anastomosing devices can only close the severed tissue and cannot perform a biopsy of the resected site at the same time. Summary of the Invention

[0004] This invention provides an adjustable stapler and a biopsy cutting device to solve the problems of existing cutting staplers being unable to perform single-end anastomosis and simultaneously perform edge biopsy.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An adjustable stapler and biopsy cutting device includes a connecting base and a cutting assembly. A second connecting cylinder is fixedly connected to the front end of the connecting base. A first connecting cylinder is connected to the free end of the second connecting cylinder through a limiting assembly. A top clamp is hinged to the free end of the first connecting cylinder. A clamp seat is hinged to the bottom end of the top clamp through a pair of collars. The cutting assembly includes a pair of staple seats disposed between the clamp seats. A cutting blade is slidably engaged on the inner side of each of the two staple seats. A support assembly is disposed between the two cutting blades.

[0006] Preferably, a horizontal plate is fixedly connected to the outside of the cutting blade, and multiple pressure blocks are provided at the top of the horizontal plate. The horizontal plate and the pressure blocks are slidably engaged in the nail seat. Multiple sets of nail grooves are provided on the nail seat, and each set of nail grooves is arranged along the extension direction of the nail seat.

[0007] Preferably, the sliding direction of the pressure block is collinear with the extension direction of the nail groove, a sewing nail is embedded in the nail groove, the upper surface of the nail seat is an outwardly convex arc shape, and the length of the sewing nail embedded in the nail groove gradually increases from the inside to the outside.

[0008] Preferably, each of the nail holders has a plurality of directional rods at its bottom end, the directional rods being slidably engaged on one side of another nail holder, and the two nail holders have grooves on opposite sides, with the cross plate being slidably engaged in the grooves.

[0009] Preferably, the support assembly includes two drive rods hinged to opposite sides of the two cutting blades, and the two drive rods are rotatably connected to a push rod. A fixing plate is provided on the push rod, and the two sides of the fixing plate are respectively connected to the two drive rods by two torsion springs.

[0010] Preferably, a pair of horizontal grooves are provided at one end of the clamp, the nail seat is slidably engaged at one end of the horizontal groove, and a swing assembly is provided between the top clamp and the first connecting cylinder. The swing assembly includes a control rod slidably engaged in the first connecting cylinder and the second connecting cylinder, and the control rod is divided into two halves along a vertical plane passing through its axis.

[0011] Preferably, each half of the control rod's free end is rotatably connected to a control shaft. The top clamp is provided with a pair of connecting plates near the end of the first connecting cylinder. Two pairs of transverse grooves are opened on opposite sides of the two connecting plates. Guide blocks are slidably engaged in the transverse grooves. The two guide blocks are connected by a control shaft. The two halves of the control rod are rotatably connected to the two control shafts respectively.

[0012] Preferably, the free end of the push rod is provided with a control component, the control component including a second slide rod connected to the free end of the push rod, the second slide rod passing through the top clamp, the free end of the second slide rod being rotatably connected to a first slide rod, and the first slide rod being slidably engaged in the control rod.

[0013] Preferably, the control rod has a hollow tail end, a movable frame is slidably mounted inside the control rod, one end of the first slide rod is horizontally slidably mounted inside the movable frame, a winder is provided inside the control rod, and the output end of the winder is connected to the outside of the movable frame via a pull rope.

[0014] Preferably, the connecting seat is coaxially connected to a control block, one end of the control block is connected to a controller, a fixed seat is provided at the top of the connecting seat, a rotating seat is rotatably mounted on the fixed seat, a control button is provided at the top of the rotating seat, and a rotating shaft is coaxially connected to the bottom of the rotating seat.

[0015] Preferably, the connecting seat has an end groove, the bottom end of the rotating shaft is disposed in the end groove, the bottom end of the rotating shaft is rotatably connected to two connecting rods through a pair of telescopic pads, and two longitudinal rods are respectively disposed in the two halves of the control rod, with the connecting rods sleeved on the outside of the longitudinal rods.

[0016] Preferably, the limiting component includes a pair of limiting grooves opened on the inner side of the second connecting cylinder, a fixed shaft coaxially connected to one end of the first connecting cylinder, a pair of limiting blocks provided on the outer side of the fixed shaft, the two limiting blocks being slidably locked in the two limiting grooves respectively, and an arc-shaped groove connected to the tail end of the limiting groove.

[0017] Preferably, a rod is slidably inserted in the arc-shaped groove, and the free ends of the two rods are connected by a movable ring. The movable ring is slidably inserted in the connecting seat, and a sliding switch is connected to the bottom end of the movable ring through a longitudinal plate. The sliding switch is slidably inserted at the bottom end of the connecting seat.

[0018] The principle and beneficial effects of this technical solution: (1) The cutting component set in this invention can simultaneously sample the cutting edge when cutting the tumor, and can control the direction of the anastomosis side of the cutting edge. This allows the device to perform single-sided or double-sided anastomosis of the cutting edge while sampling the cutting edge tissue, which helps medical staff to reconstruct organ function in some scenarios. When adjusting the distance between the two nail seats, the torsion spring in the support component will simultaneously drive the drive rod connected to its free end to deflect outward. When the drive rod moves, it will drive the two cutting blades to press against the inner side of the nail seats to adjust the gap between the cutting blades, and finally control the width of the cut biopsy specimen.

[0019] (2) The swing component provided in this invention can adjust the orientation of the clamp and the top clamp to improve the adaptability of the device in different scenarios. When it is necessary to adjust the orientation of the clamp and the top clamp, the control button provided at the top of the rotating seat is turned to drive the two parts of the control rod to be misaligned in the horizontal plane. The control shaft provided at the front of the control rod drives the connecting plate to move, so that the top clamp where the connecting plate is located swings along one end of the first connecting cylinder, thereby synchronously driving the clamp and the nail seat to swing.

[0020] (3) The control component provided in this invention can control the forward and backward movement of the second slide bar, thereby manipulating the device to sample and match. When using the control component, start the winding machine, and the winding machine will pull the moving frame through the pull rope, so that the first slide bar that is slidably locked on one side of the moving frame moves forward synchronously. While the first slide bar moves forward, it will push the second slide bar that is rotatably connected at one end to slide in the top clamp, thereby pushing the push rod forward to drive the cutting blade forward. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the disassembled structure of the present invention; Figure 3 for Figure 2 Enlarged structural diagram of region A in the middle; Figure 4This is a schematic diagram of the cross-section of the present invention; Figure 5 for Figure 4 A magnified structural diagram of region B in the middle; The reference numerals in the accompanying drawings of the instruction manual include: 1. First connecting cylinder; 2. Second connecting cylinder; 3. Connecting seat; 4. Fixed seat; 5. Control block; 6. Top clamp; 7. Slide groove; 8. Nail seat; 9. Limiting groove; 10. Fixed shaft; 11. Limiting block; 12. Connecting plate; 13. Horizontal groove; 14. Push rod; 15. Fixed plate; 16. Torsion spring; 17. Drive rod; 18. Cutting blade; 19. Nail groove; 20. Pressure block; 21. Horizontal plate; 22. Directional rod; 23. Guide block; 24. Control rod; 25. Control shaft; 26. Second slide rod; 27. Collar; 28. First slide rod; 29. ​​Horizontal groove; 30. Clamp; 31. Control button; 32. Rotating seat; 33. Telescopic pad; 34. Connecting rod; 35. Longitudinal rod; 36. Pull rope; 37. Moving frame; 38. Insert rod; 39. Rotating shaft; 40. End groove; 41. Moving ring; 42. Longitudinal plate; 43. Slide switch. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: Example: like Figures 1 to 5 As shown, this invention provides an adjustable stapler and biopsy cutting device, including a connecting base 3 and a cutting assembly. A second connecting cylinder 2 is fixedly connected to the front end of the connecting base 3. A first connecting cylinder 1 is connected to the free end of the second connecting cylinder 2 via a limiting assembly. A top clamp 6 is hinged to the free end of the first connecting cylinder 1. A clamp seat 30 is hinged to the bottom end of the top clamp 6 via a pair of collars 27. The cutting assembly includes a pair of staple seats 8 disposed between the clamp seats 30. Cutting blades 18 are slidably mounted on the inner sides of both staple seats 8. A support assembly is disposed between the two cutting blades 18. The rotation angle drive between the clamp seats 30 and the top clamp 6 can be controlled by a power source that controls the rotational motion, such as a micro-motor. The direction and number of staple seats 8 can also be selected for the anastomotic side by adjusting the type of staple seat 8 installed. like Figure 2 and Figure 3 As shown, a horizontal plate 21 is fixedly connected to the outside of the cutting blade 18. Multiple pressure blocks 20 are provided at the top of the horizontal plate 21. The horizontal plate 21 and the pressure blocks 20 are slidably locked in the nail seat 8. Multiple sets of nail grooves 19 are opened on the nail seat 8, and each set of nail grooves 19 is arranged along the extension direction of the nail seat 8.

[0023] like Figure 2 and Figure 3As shown, the sliding direction of the pressure block 20 is collinear with the extension direction of the nail groove 19. The nail groove 19 is embedded with a suture nail. The upper surface of the nail seat 8 is an outwardly convex arc shape. The length of the suture nail embedded in the nail groove 19 gradually increases from the inside to the outside. The outwardly convex nail seat 8 and the stepped length of the suture nail prevent excessive tissue traction at the anastomosis.

[0024] like Figure 2 and Figure 3 As shown, each nail seat 8 has multiple directional rods 22 at its bottom end. The directional rods 22 are slidably engaged on one side of another nail seat 8. Slide grooves 7 are provided on opposite sides of both nail seats 8, and the horizontal plate 21 is slidably engaged in the slide grooves 7.

[0025] like Figure 3 As shown, the support assembly includes two drive rods 17 hinged to opposite sides of two cutting blades 18. The two drive rods 17 are rotatably connected to a push rod 14. A fixing plate 15 is provided on the push rod 14. The two sides of the fixing plate 15 are respectively connected to the two drive rods 17 through two torsion springs 16.

[0026] like Figures 1 to 3 As shown, a pair of horizontal grooves 29 are provided at one end of the clamp 30, and the nail seat 8 is slidably locked at one end of the horizontal groove 29. A swing assembly is provided between the top clamp 6 and the first connecting cylinder 1. The swing assembly includes a control rod 24 slidably locked in the first connecting cylinder 1 and the second connecting cylinder 2. The control rod 24 is divided into two halves along a vertical plane passing through its axis.

[0027] like Figure 1 and Figure 3 As shown, each half of the control lever 24 is rotatably connected to a control shaft 25 at its free end. A pair of connecting plates 12 are provided at the end of the top clamp 6 near the first connecting cylinder 1. Two pairs of transverse grooves 13 are provided on opposite sides of the two connecting plates 12. Guide blocks 23 are slidably locked in the transverse grooves 13. The two guide blocks 23 are connected by the control shaft 25. The free ends of the control lever 24, which are divided into two halves, are rotatably connected to the two control shafts 25 respectively.

[0028] like Figure 2 and Figure 3 As shown, a control component is provided at the free end of the push rod 14. The control component includes a second slide rod 26 connected to the free end of the push rod 14. The second slide rod 26 passes through the top clamp 6. A first slide rod 28 is rotatably connected to the free end of the second slide rod 26. The first slide rod 28 is slidably locked in the control rod 24.

[0029] like Figures 3 to 5 As shown, the tail end of the control rod 24 is hollow, and a moving frame 37 is slidably mounted inside the control rod 24. One end of the first sliding rod 28 is horizontally slidably mounted inside the moving frame 37. A winder is installed inside the control rod 24, and the output end of the winder is connected to the outside of the moving frame 37 through a pull rope 36.

[0030] like Figure 1 and Figure 5 As shown, the connecting seat 3 is coaxially connected to the control block 5. One end of the control block 5 is connected to the controller. The top of the connecting seat 3 is provided with a fixed seat 4. The fixed seat 4 is rotatably mounted on the fixed seat 4. The top of the rotating seat 32 is provided with a control button 31. The bottom of the rotating seat 32 is coaxially connected to the rotating shaft 39.

[0031] The swing assembly can adjust the orientation of the clamp 30 and the top clamp 6 to improve the adaptability of the device in different scenarios. When it is necessary to adjust the orientation of the clamp 30 and the top clamp 6, the control button 31 at the top of the rotating seat 32 is turned. The control button 31 will drive the rotating shaft 39 coaxially connected at its bottom to rotate. When the rotating shaft 39 rotates, it will also drive the two connecting rods 34 hinged at its bottom through the telescopic pad 33 to move. The movement of the two connecting rods 34 will pull the longitudinal rod 35 sleeved at the free end of the connecting rod 34 to move. Since the longitudinal rod 35 is fixedly set in the half-split control rod 24, and the control rod 24 is slidably locked in the first connecting cylinder 1 and the second connecting cylinder 2, the rotation of the control button 31 will eventually drive the two parts of the control rod 24 to be misaligned in the horizontal plane. The control shaft 25 set at the front of the control rod 24 will drive the connecting plate 12 to move, so that the top clamp 6 where the connecting plate 12 is located swings along one end of the first connecting cylinder 1, thereby synchronously driving the clamp 30 and the nail seat 8 to swing.

[0032] like Figure 1 , Figure 3 and Figure 5 As shown, the connecting seat 3 has an end groove 40, the bottom end of the rotating shaft 39 is set in the end groove 40, and the bottom end of the rotating shaft 39 is rotatably connected to two connecting rods 34 through a pair of telescopic pads 33. Two longitudinal rods 35 are respectively set in the two halves of the control rod 24, and the connecting rods 34 are sleeved on the outside of the longitudinal rods 35.

[0033] like Figure 1 and Figure 2 As shown, the limiting assembly includes a pair of limiting grooves 9 opened on the inner side of the second connecting cylinder 2, a fixed shaft 10 coaxially connected to one end of the first connecting cylinder 1, a pair of limiting blocks 11 provided on the outer side of the fixed shaft 10, the two limiting blocks 11 being slidably locked in the two limiting grooves 9 respectively, and an arc groove connected to the tail end of the limiting groove 9.

[0034] like Figure 1 and Figure 5 As shown, the arc-shaped groove has a sliding locking device with a rod 38. The free ends of the two rods 38 are connected by a moving ring 41. The moving ring 41 is slidably locked in the connecting seat 3. The bottom end of the moving ring 41 is connected to a sliding switch 43 through a longitudinal plate 42. The sliding switch is slidably locked in the bottom end of the connecting seat 3.

[0035] The control component can control the forward and backward movement of the second slide bar 26, thereby manipulating the device to sample and match. When the control component is used, the winding machine is started, and the winding machine will pull the moving frame 37 to move through the pull rope 36, so that the first slide bar 28, which is slidably locked on one side of the moving frame 37, moves forward synchronously. While the first slide bar 28 moves forward, it will push the second slide bar 26, which is rotatably connected at one end, to slide in the top clamp 6, thereby pushing the push rod 14 to move forward to drive the cutting blade 18 to move forward.

[0036] The specific usage and function of this embodiment are as follows: The cutting component in this invention can simultaneously sample the cutting edge during tumor cutting, and can control the direction of the anastomosis edge on the cutting edge side. This allows the device to perform unilateral or bilateral anastomosis of the cutting edge while sampling the tissue at the cutting edge, helping medical personnel to reconstruct organ function in certain scenarios. Before using the cutting component, the fixed shaft 10 connected to one end of the first connecting cylinder 1 is inserted into one end of the second connecting cylinder 2, so that the limiting block 11 set on the outside of the fixed shaft 10 slides along the limiting groove 9 until the limiting block 11 slides into the arc-shaped groove connected to one end of the limiting groove 9. Then, the first connecting cylinder 2 is rotated. After the connecting cylinder 1 is slid, the two limiting blocks 11 are slid to the other end of the arc groove. Then, the sliding switch at the bottom of the connecting seat 3 is activated. The sliding switch will move with the moving ring 41 connected to the longitudinal plate 42 until the insertion rod 38 connected to the moving ring 41 passes into the arc groove. At this time, the insertion rod 38 will limit the first connecting cylinder 1 where the limiting block 11 is located by contacting one side of the limiting block 11. After completing the above operation, the required nail seat 8 type is slidably locked to one end of the clamp 30. At the same time, the directional rod 22 between the two nail seats 8 is slidably connected, and the cutting blade 18 is then... The outer fixed connecting horizontal plate 21 is engaged in the sliding groove 7 opened on the opposite side of the staple seat 8. Then, according to the required biopsy sample width, the staple seat 8 slides along the horizontal groove 29 opened at one end of the clamp 30. After the distance between the two staple seats 8 meets the requirements, the clamp 30 is driven to deflect upward along the top clamp 6 until the clamp 30 and the top clamp 6 clamp the area to be matched. Then, the drive control component is driven to push the second slide rod 26. The second slide rod 26 will drive the push rod 14 connected to its free end to move forward. The push rod 14 will drive the two cutting blades 18 to move forward through the support component. At the same time, the cutting blades 18 The horizontal plate 21 fixed on the outside drives the pressure block 20 to move. As the pressure block 20 moves forward, it simultaneously pushes up the sutures set in the suture slot 19 in the suture seat 8. The sutures will then fit the tissue on that side. At the same time, the cutting blade 18 will also cut the tissue simultaneously. When adjusting the distance between the two suture seats 8, the torsion spring 16 in the support assembly will simultaneously drive the drive rod 17 connected to its free end to deflect outward. When the drive rod 17 moves, it will drive the two cutting blades 18 to press against the inner side of the suture seat 8 to adjust the gap between the cutting blades 18, and finally control the width of the cut biopsy specimen.

[0037] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An adjustable stapler and biopsy cutting device, characterized in that: The assembly includes a connecting seat (3) and a cutting component. The front end of the connecting seat (3) is fixedly connected to a second connecting cylinder (2). The free end of the second connecting cylinder (2) is connected to a first connecting cylinder (1) through a limiting component. The free end of the first connecting cylinder (1) is hinged to a top clamp (6). The bottom end of the top clamp (6) is hinged to a clamp seat (30) through a pair of collars (27). The cutting component includes a pair of nail seats (8) disposed between the clamp seats (30). One end of the clamp seat (30) is provided with a pair of horizontal grooves (29). The nail seats (8) are slidably locked at one end of the horizontal grooves (29). Cutting blades (18) are slidably locked on the inner side of the two nail seats (8). A support component is disposed between the two cutting blades (18). A horizontal plate (21) is fixedly connected to the outside of the cutting blade (18). A plurality of pressure blocks (20) are provided at the top of the horizontal plate (21). The horizontal plate (21) and the pressure blocks (20) are slidably locked in the nail seat (8). A plurality of nail grooves (19) are provided on the nail seat (8). Each set of nail grooves (19) is arranged along the extension direction of the nail seat (8). The support assembly includes two drive rods (17) hinged to opposite sides of the two cutting blades (18), and the two drive rods (17) are rotatably connected to a push rod (14). A fixing plate (15) is provided on the push rod (14), and the two sides of the fixing plate (15) are respectively connected to the two drive rods (17) through two torsion springs (16). The push rod (14) has a control component at its free end. The control component includes the push rod (14) and the control rod (24). The free end of the push rod (14) is connected to a second slide rod (26). The second slide rod (26) passes through the top clamp (6). The free end of the second slide rod (26) is rotatably connected to a first slide rod (28). The first slide rod (28) is slidably locked in the control rod (24).

2. The adjustable stapler and biopsy cutting device according to claim 1, characterized in that: The sliding direction of the pressure block (20) is collinear with the extension direction of the nail groove (19). The nail groove (19) is embedded with a sewing nail. The upper surface of the nail seat (8) is an outwardly convex arc shape. The length of the sewing nail embedded in the nail groove (19) gradually increases from the inside to the outside.

3. The adjustable stapler and biopsy cutting device according to claim 2, characterized in that: Each of the nail seats (8) is provided with a plurality of directional rods (22) at its bottom end. The directional rods (22) are slidably engaged on one side of another nail seat (8). Slide grooves (7) are provided on opposite sides of the two nail seats (8). The cross plate (21) is slidably engaged in the slide grooves (7).

4. The adjustable stapler and biopsy cutting device according to claim 3, characterized in that: A swing assembly is provided between the top clamp (6) and the first connecting cylinder (1). The swing assembly includes a control rod (24) that is slidably engaged in the first connecting cylinder (1) and the second connecting cylinder (2). The control rod (24) is divided into two halves along a vertical plane passing through its axis.

5. The adjustable stapler and biopsy cutting device according to claim 4, characterized in that: Each half of the control rod (24) is rotatably connected to a control shaft (25). The top clamp (6) is provided with a pair of connecting plates (12) near the first connecting cylinder (1). Two pairs of transverse grooves (13) are opened on opposite sides of the two connecting plates (12). Guide blocks (23) are slidably locked in the transverse grooves (13). The two guide blocks (23) are connected by the control shaft (25). The free ends of the control rod (24) divided into two halves are rotatably connected to the two control shafts (25) respectively.

6. The adjustable stapler and biopsy cutting device according to claim 5, characterized in that: The control rod (24) is hollow at the end. A movable frame (37) is slidably mounted inside the control rod (24). One end of the first slide rod (28) is horizontally slidably mounted inside the movable frame (37). A winder is provided inside the control rod (24). The output end of the winder is connected to the outside of the movable frame (37) via a pull rope (36).

7. The adjustable stapler and biopsy cutting device according to claim 6, characterized in that: The connecting seat (3) is coaxially connected to the control block (5), one end of the control block (5) is connected to the controller, the top of the connecting seat (3) is provided with a fixed seat (4), the fixed seat (4) is rotatably mounted on the fixed seat (4), and the top of the rotatable seat (32) is provided with a control button (31).

8. The adjustable stapler and biopsy cutting device according to claim 7, characterized in that: The bottom end of the rotating seat (32) is coaxially connected to a rotating shaft (39). The connecting seat (3) has an end groove (40) inside. The bottom end of the rotating shaft (39) is located in the end groove (40). The bottom end of the rotating shaft (39) is rotatably connected to two connecting rods (34) through a pair of telescopic pads (33). Two longitudinal rods (35) are respectively provided in the two halves of the control rod (24). The connecting rods (34) are sleeved on the outside of the longitudinal rods (35).

9. The adjustable stapler and biopsy cutting device according to claim 8, characterized in that: The limiting component includes a pair of limiting grooves (9) opened on the inner side of the second connecting cylinder (2), a fixed shaft (10) is coaxially connected to one end of the first connecting cylinder (1), a pair of limiting blocks (11) are provided on the outer side of the fixed shaft (10), the two limiting blocks (11) are respectively slidably locked in the two limiting grooves (9), and an arc groove is connected to the tail end of the limiting groove (9).

10. The adjustable stapler and biopsy cutting device according to claim 9, characterized in that: The arc-shaped groove is fitted with a sliding insert rod (38). The free ends of the two insert rods (38) are connected by a moving ring (41). The moving ring (41) is slidably fitted inside the connecting seat (3). The bottom end of the moving ring (41) is connected to a sliding switch (43) through a longitudinal plate (42). The sliding switch is slidably fitted at the bottom end of the connecting seat (3).

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