Execution assembly for anastomat

Abstract

The invention relates to the technical field of anastomats, in particular to an executing assembly for an anastomat, which comprises a handle, one end of the handle is fixedly connected with a circular bearing plate, the outer side wall of the circular bearing plate is rotatably connected with a rotary connecting piece through a shaft rod, and one end of the rotary connecting piece is fixedly connected with a sleeve part; according to the invention, by arranging the mistaken touch prevention mechanism, the limiting blocks are respectively clamped into the two limiting grooves, the execution part is fixed, mistaken touch is avoided, and the position of the sliding rod is limited through the limiting short rod and the circular groove, so that the position of the circular movable block can be limited; the position of the executing part is limited through the cooperation with the mistaken touch prevention mechanism, the executing part is doubly limited, the position of the rotating connecting piece which is adjusted in a rotating mode is conveniently fixed, the position of the rotating connecting piece is not pressed in the fixing process, the whole operation is labor-saving, simple and convenient, and the situation that the anastomosis operation is affected due to displacement of the plier head part is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of staplers, and in particular to an actuator assembly for a stapler. Background Art

[0002] The stapler is the world's first stapler used for gastrointestinal anastomosis and is widely used in gastrointestinal surgery. It is generally divided into disposable or multiple-use staplers. It is a medical device that replaces traditional manual suturing. Due to the development of modern science and technology and the improvement of manufacturing technology, the staplers used clinically are of reliable quality, easy to use, simple to operate, and have few side effects and surgical complications.

[0003] In the prior art, there is a technical solution in which the actuator of the laparoscope closing stapler proposed in patent application number "CN202110613141.0" realizes that each cam of the cam plate simultaneously pushes the nail pushing sliders on multiple nail pushing blocks to move upward in the nail storage hole, so that the nail pushing blocks push the two nail rods of the staples to bend along the forming grooves respectively, and realizes a technical solution in which the nail pushing sliders on each nail pushing block remain on the platforms of each cam of the cam plate after the operation of stapling the tissues is completed.

[0004] However, in the above patent application, when the stapler is not needed, the component in the actuator assembly for manipulating the clamp head is easily touched by mistake, which affects the subsequent anastomosis operation. Moreover, after adjusting the position of the clamp head by rotating the actuator assembly, it is necessary to twist the fixing assembly to press and fix the relevant parts in the actuator assembly, which is not only laborious but also easy to cause displacement of the clamp head, which also affects the anastomosis operation. Summary of the invention

[0005] The object of the present invention is to provide an actuator assembly for a stapler to solve the problems raised in the above-mentioned background technology.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] An actuator assembly for a stapler, an actuator assembly for a stapler, comprising a handle, one end of the handle is fixedly connected to a circular bearing plate, the outer wall of the circular bearing plate is rotatably connected to a rotating connection piece through an axle, one end of the rotating connection piece is fixedly connected to a sleeve portion, a clamp head is fixedly installed on the sleeve portion away from the end of the rotating connection piece, a firing assembly is arranged inside the sleeve portion near the end of the clamp head, a protective shell is fixedly connected to the outer wall of the rotating connection piece, a circular movable block is rotatably connected to the handle through an axle, an actuator is fixedly connected to the outer wall of the circular movable block, an anti-mistouch mechanism is arranged on the outer wall of the handle, a connecting mechanism is arranged on the outer wall of the circular bearing plate, two indicator plates are fixedly connected to one end of the rotating connection piece near the circular bearing plate, and a scale is engraved on the outer wall of the circular bearing plate;

[0008] The anti-mistouch mechanism includes a circular connecting shell and two double-headed screws. The circular connecting shell is fixedly connected to the outer wall of the handle, and the two double-headed screws are rotatably connected to the outer wall of the handle and close to one end of the actuator.

[0009] Preferably, the outer wall of the handle is rotatably connected to a movable ring inside the circular connecting shell via an axle rod, the outer wall of the circular connecting shell is fixedly connected to a fixed ring, the fixed ring is rotatably connected to a rotating plate inside, and the rotating plate is fixedly connected to the movable ring via an axle rod.

[0010] Preferably, a T-shaped limit plate is inserted into the upper end of the rotating plate, a plurality of fixing grooves are opened on the inner wall of the fixing ring, and the fixing grooves are matched with the T-shaped limit plate, and a support spring is installed between the bottom end of the T-shaped limit plate and the bottom end of the rotating plate.

[0011] Preferably, arc-shaped clamping plates are sleeved on the outside of the two double-headed screws near both ends, and the outer side walls of the two arc-shaped clamping plates are fixedly connected to the limiting blocks, and the two outer side walls of the execution part are provided with limiting grooves, and the limiting grooves are matched with the limiting blocks;

[0012] One end of the two double-headed screws is fixedly connected with a gear, and the outer wall of the movable ring is provided with a plurality of tooth grooves, and the plurality of tooth grooves are meshed with the gears.

[0013] Preferably, an arc-shaped groove is formed through the outer wall of the handle, a sliding rod is inserted into the arc-shaped groove, one end of the sliding rod is fixedly connected to the circular movable block, a long groove is formed on the inner wall of the actuator, a limiting short rod is inserted into the long groove, a return spring is installed between one end of the limiting short rod and the inner wall of the long groove, and a circular groove is formed on the outer wall of the sliding rod, and the circular groove fits with one end of the limiting short rod.

[0014] Preferably, the connecting mechanism includes two fixed frames and several fixed blocks, the two fixed frames are fixedly installed on the outer wall of the circular supporting plate, the several fixed blocks are fixedly connected to the outer wall of the rotating connecting piece, the two fixed frames are fixedly installed with a cross bar, and the outside of the cross bar is provided with a slider and two support springs.

[0015] Preferably, the outer wall of the slider is fixedly connected with a clamping plate, and the clamping plate is rotatably connected to two transverse axes inside. The outsides of the two transverse axes are fixedly connected with L-shaped clamping plates, and the outsides of the two transverse axes are provided with tension springs near one side of the L-shaped clamping plates. One end of the two L-shaped clamping plates is rotatably connected with a movable wheel through an axle rod, and the movable wheel fits with the fixed block.

[0016] Preferably, two vertical rods are fixedly connected to the upper end surface of the handle, a lower pressure block is sleeved between the outsides of the two vertical rods, an adjusting screw is fixedly connected to the upper end surface of the lower pressure block, two baffles are fixedly connected to the outer walls of the two vertical rods near the upper ends, and a nut is sleeved outside the adjusting screw and located between the two baffles.

[0017] Preferably, a connecting rod is fixedly connected between the upper end surfaces of the two clamping plates, and the connecting rod is slidably connected to the lower pressing block.

[0018] Beneficial effects of the present invention:

[0019] 1. The present invention drives the movable ring to rotate by rotating the rotating plate in the opposite direction, and similarly drives the two gears to rotate in the opposite direction, thereby driving the two arc-shaped clamping plates to approach each other, so that the two limit blocks are respectively inserted into the two limit grooves, and the actuator is fixed to avoid accidental touch. The initial position of one end of the limit short rod is in the circular groove, which limits the position of the sliding rod, thereby limiting the position of the circular movable block, thereby limiting the position of the actuator, and cooperating with the anti-accidental touch mechanism to perform double limit on the actuator.

[0020] 2. In the present invention, by rotating the nut in cooperation with the adjusting screw, the lower pressure block can be driven to move downward along the vertical rod, and the movable wheels installed at one end of the clamping plate and the two L-shaped clamping plates respectively move along the outer wall of the fixed block, and are finally clamped inside the fixed block in cooperation with the tension spring and the horizontal axis. The position between the clamping plate and the fixed block can be fixed, thereby fixing the position of the circular bearing plate and the rotating connector, thereby facilitating the fixing of the position of the rotating connector that has been adjusted, and the position of the rotating connector is not pressed during fixing. The entire operation is labor-saving and simple, avoiding displacement of the clamp head and affecting the fitting operation.

[0021] 3. In the present invention, when the rotating connector is rotated, the two indicator plates rotate along with the rotating connector, and the angle of the rotating connector can be accurately rotated by referring to the scale on the circular carrier plate. The positions of the two indicator plates correspond to the positions of the clamp head, making it more convenient to accurately rotate the position of the clamp head. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a partial structural schematic diagram of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the rotary connector, the actuator and the movable ring in the present invention;

[0026] Figure 4 is a cross-sectional view of the circular connecting shell and the fixing ring in the present invention;

[0027] Figure 5 is a cross-sectional view of a rotary connector in the present invention;

[0028] Figure 6 The present invention Figure 5 The enlarged view of point A in the middle;

[0029] Figure 7 It is a structural schematic diagram of the lower pressing block, the adjusting screw rod and the movable block in the present invention;

[0030] Figure 8 It is a cross-sectional view of the fixed frame and the movable block in the present invention.

[0031] The reference numerals in the figures are as follows:

[0032] 1. Sleeve part; 2. Clamp head; 3. Rotating connector; 4. Handle; 5. Actuator; 6. Protective shell; 7. Circular connecting shell; 8. Rotating plate; 9. T-shaped limit plate; 10. Fixed ring; 11. Arc clamp; 12. Double-headed screw; 13. Gear; 14. Limit block; 15. Movable ring; 16. Fixed block; 17. Indicator plate; 18. Pressing block; 19. Vertical rod; 20. Nut; 21. Adjusting screw; 22. Baffle; 23. Fixed frame; 24. Snap plate; 25. Arc groove; 26. Slide bar; 27. Limit short rod; 28. L-shaped clamp; 29. ​​Tension spring; 30. Movable wheel; 31. Cross bar; 32. Sliding block; 33. Circular movable block; 34. Connecting rod; 35. Horizontal axis; 36. Circular bearing plate. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] An actuator assembly for a stapler, such as Figure 1-Figure 8As shown, it includes a handle 4, one end of the handle 4 is fixedly connected to a circular bearing plate 36, the outer wall of the circular bearing plate 36 is rotatably connected to a rotating connector 3 through an axle, one end of the rotating connector 3 is fixedly connected to a sleeve portion 1, and a clamp head 2 is fixedly installed on the sleeve portion 1 away from the rotating connector 3. A firing assembly is arranged at one end of the sleeve portion 1 near the clamp head 2, and a protective shell 6 is fixedly connected to the outer wall of the rotating connector 3. A circular movable block 33 is rotatably connected to the inside of the handle 4 through an axle, and an execution part 5 is fixedly connected to the outer wall of the circular movable block 33. An anti-mistaken touch mechanism is arranged on the outer wall of the handle 4, and a connecting mechanism is arranged on the outer wall of the circular bearing plate 36. Two indicator plates 17 are fixedly connected to one end of the rotating connector 3 near the circular bearing plate 36. The outer wall of the circular bearing plate 36 is engraved with scales. The anti-mistaken touch mechanism includes a circular connecting shell 7 and two double-headed screws 12. The circular connecting shell 7 is fixedly connected to the outer wall of the handle 4, and the two double-headed screws 12 are both rotatably connected to the outer wall of the handle 4 and near one end of the execution part 5.

[0035] The outer wall of the handle 4 is located inside the circular connecting shell 7 and is rotatably connected with a movable ring 15 through an axial rod. The outer wall of the circular connecting shell 7 is fixedly connected with a fixed ring 10. The fixed ring 10 is rotatably connected with a rotating plate 8, and the rotating plate 8 is fixedly connected to the movable ring 15 through the axial rod. A T-shaped limiting plate 9 is inserted into the upper end of the rotating plate 8. A plurality of fixing grooves are opened on the inner wall of the fixing ring 10, and the fixing grooves are matched with the T-shaped limiting plate 9. A supporting spring 1 is installed between the bottom end of the T-shaped limiting plate 9 and the bottom end of the rotating plate 8. One end of the T-shaped limiting plate 9 is inserted into the corresponding fixing groove on the inner wall of the fixing ring 10 under the action of the elastic force of the supporting spring 1, so that the position of the rotating plate 8 can be fixed, thereby fixing the position of the movable ring 15.

[0036] The two double-headed screws 12 are both sleeved with arc-shaped splints 11 near the two ends, and the outer walls of the two arc-shaped splints 11 are fixedly connected to the limit blocks 14. The two outer walls of the actuator 5 are provided with limit grooves, and the limit grooves are matched with the limit blocks 14. One end of the two double-headed screws 12 is fixedly connected with a gear 13, and the outer wall of the movable ring 15 is provided with a plurality of tooth grooves, and the plurality of tooth grooves are meshed with the gear 13. The outer walls of the double-headed screws 12 have bidirectional threads near both ends, and the arc-shaped splints 11 and the double-headed screws 12 are provided with threads that are matched with the double-headed screws 12 at the joints. When the double-headed screw 12 rotates, the arc-shaped splints 11 can move laterally with the cooperation of the threads.

[0037] An arc-shaped groove 25 is formed through the outer wall of the handle 4, a slide rod 26 is inserted inside the arc-shaped groove 25, one end of the slide rod 26 is fixedly connected to the circular movable block 33, a long groove is formed on the inner wall of the actuator 5, a limiting short rod 27 is inserted inside the long groove, a return spring is installed between one end of the limiting short rod 27 and the inner wall of the long groove, a circular groove is formed on the outer wall of the slide rod 26, and the circular groove fits with one end of the limiting short rod 27.

[0038] Specifically, the initial position of one end of the limiting short rod 27 is in the circular groove, which limits the position of the slide bar 26, thereby limiting the position of the circular movable block 33, thereby limiting the position of the actuator 5, and cooperating with the anti-mistouch mechanism to perform doubly limiting the actuator 5. When the movable ring 15 rotates subsequently, the limiting short rod 27 follows the movable ring 15 to move. Since one end face of the limiting short rod 27 inserted into the circular groove is a smooth surface, one end of the limiting short rod 27 can be moved out of the circular groove and move along the outer wall of the slide bar 26. At this time, the slide bar 26 moves into the long groove, and the reset spring is squeezed. After the movable ring 15 rotates to the initial position, under the action of the reset spring elastic force, one end of the limiting short rod 27 can be reinserted into the circular groove to fix the position of the slide bar 26. When the actuator 5 is pressed again, the circular movable block 33 rotates accordingly, driving the slide bar 26 to slide along the arc groove 25.

[0039] When in use, the medical staff holds the handle 4, inserts the sleeve part 1 and the clamp head 2 into the patient's body to be anastomosed, and then presses the actuator 5 to drive the firing assembly to control the clamp head 2 to close and perform the anastomosis operation, wherein the firing assembly cooperates with the actuator 5 in the handle 4 and the circular movable block 33 to control the opening and closing of the clamp head 2. The firing assembly adopts the structure of any firing assembly in the prior art, which will not be repeated here;

[0040] Before manipulating the clamp head 2, it is necessary to move the T-shaped limit plate 9 in the rotating plate 8 so that the T-shaped limit plate 9 is moved out of the fixed groove to release the fixation of the rotating plate 8, and then the movable ring 15 is driven to rotate by rotating the rotating plate 8, and the two gears 13 can be driven to rotate in coordination with the tooth grooves, thereby driving the double-headed screw 12 to rotate, so that the two arc-shaped clamping plates 11 move along the double-headed screw 12 and move away from each other, so that the two limit blocks 14 are respectively moved out of the limit grooves, and the fixation of the actuator 5 is released, so that the actuator 5 can be pressed to manipulate the clamp head 2;

[0041] After use or when not in use, the movable ring 15 can be driven to rotate by rotating the rotating plate 8 in the reverse direction, and the two gears 13 can be driven to rotate in the reverse direction, thereby driving the two arc-shaped clamps 11 to approach each other, so that the two limit blocks 14 are respectively inserted into the two limit grooves to fix the actuator 5 to avoid accidental touch, resulting in loss of control of the clamp head 2 and affecting the anastomosis operation.

[0042] The connecting mechanism includes two fixed frames 23 and a plurality of fixed blocks 16. The two fixed frames 23 are fixedly installed on the outer wall of the circular bearing plate 36. The plurality of fixed blocks 16 are fixedly connected to the outer wall of the rotating connecting member 3. A cross bar 31 is fixedly installed inside the two fixed frames 23. A slider 32 and a second support spring are sleeved outside the cross bar 31. The second support spring serves to reset the position of the slider 32.

[0043] The outer wall of the slider 32 is fixedly connected to a clamping plate 24, and two transverse shafts 35 are rotatably connected inside the clamping plate 24. The outside of the two transverse shafts 35 are fixedly connected to an L-shaped clamping plate 28, and the outside of the two transverse shafts 35 are sleeved with tension springs 29 near one side of the L-shaped clamping plate 28. One end of the two L-shaped clamping plates 28 are rotatably connected to a movable wheel 30 through an axle rod, and the movable wheel 30 is matched with the fixed block 16. The movable wheels 30 installed at one end of the two L-shaped clamping plates 28 move along the outer wall of the fixed block 16 respectively, and are finally clamped inside the fixed block 16 in cooperation with the tension spring 29 and the transverse shaft 35, so that the position between the clamping plate 24 and the fixed block 16 can be fixed.

[0044] Two vertical rods 19 are fixedly connected to the upper end surface of the handle 4, and a lower pressure block 18 is sleeved between the outsides of the two vertical rods 19. An adjusting screw 21 is fixedly connected to the upper end surface of the lower pressure block 18. Two baffles 22 are fixedly connected to the outer walls of the two vertical rods 19 near the upper end. A nut 20 is sleeved on the outside of the adjusting screw 21 and located between the two baffles 22. A connecting rod 34 is fixedly connected between the upper end surfaces of the two clamping plates 24, and the connecting rod 34 is slidably connected to the lower pressure block 18. One side of the lower pressure block 18 is an inclined surface, and the connecting rod 34 is slidably connected to the inclined surface of the lower pressure block 18. When the lower pressure block 18 moves downward, the connecting rod 34 can be pushed to move toward the direction close to the circular bearing plate 36. The baffle 22 plays a role in limiting the nut 20, and the inner wall of the nut 20 is provided with a thread that fits the adjusting screw 21.

[0045] Specifically, when using the stapler, it is necessary to rotate the sleeve portion 1 by rotating the rotating connector 3 to adjust the position of the clamp head portion 2 to adapt to the stapler operation at different positions. When the rotating connector 3 is rotated, the two indicator plates 17 rotate along with the rotating connector 3. At the same time, referring to the scale on the circular carrier plate 36, the angle of the rotating connector 3 can be accurately rotated, and the positions of the two indicator plates 17 correspond to the positions of the clamp head portion 2, making it more convenient to accurately rotate the position of the clamp head portion 2. After the rotation is completed, the adjusting screw 21 is driven downward by rotating the nut 20, thereby driving the lower pressing block 18 to move downward along the vertical rod 19, so that the connecting rod 34 slides relatively along the lower pressing block 18. The connecting rod 34 can be moved laterally, driving the clamping plate 24 to slide on one side of the fixed frame 23 through the slider 32 and the cross bar 31, which can drive the movable wheels 30 installed at one end of the two L-shaped clamping plates 28 to move along the outer wall of the fixed block 16 respectively, and finally clamped inside the fixed block 16 in cooperation with the tension spring 29 and the cross shaft 35, so that the position between the clamping plate 24 and the fixed block 16 can be fixed, thereby fixing the position of the circular bearing plate 36 and the rotating connecting member 3, so as to facilitate fixing the position of the rotating connecting member 3 that has been adjusted in rotation, and the position of the rotating connecting member 3 is not pressed when fixing, and the whole operation is labor-saving and simple, avoiding displacement of the clamp head 2 and affecting the matching operation.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An actuator assembly for a stapler, comprising a handle (4), characterized in that: One end of the handle (4) is fixedly connected to a circular bearing plate (36), and the outer wall of the circular bearing plate (36) is rotatably connected to a rotating connecting member (3) through a shaft rod. One end of the rotating connecting member (3) is fixedly connected to a sleeve portion (1), and a clamp head (2) is fixedly installed on the end of the sleeve portion (1) away from the rotating connecting member (3). A firing assembly is arranged inside the sleeve portion (1) near the end of the clamp head (2). A protective shell (6) is fixedly connected to the outer wall of the rotating connecting member (3). A circular movable block (33) is rotatably connected inside the handle (4) through a shaft rod, and an execution member (5) is fixedly connected to the outer wall of the circular movable block (33). An anti-mistouch mechanism is arranged on the outer wall of the handle (4), and a connecting mechanism is arranged on the outer wall of the circular bearing plate (36). Two indicator plates (17) are fixedly connected to one end of the rotating connecting member (3) near the circular bearing plate (36), and a scale is engraved on the outer wall of the circular bearing plate (36). The anti-mis-touch mechanism comprises a circular connecting shell (7) and two double-headed screws (12); the circular connecting shell (7) is fixedly connected to the outer wall of the handle (4); and the two double-headed screws (12) are rotatably connected to the outer wall of the handle (4) and close to one end of the actuator (5).

2. The actuator assembly for a stapler according to claim 1, characterized in that: The outer wall of the handle (4) is located inside the circular connection shell (7) and is rotatably connected to a movable ring (15) via a shaft rod. The outer wall of the circular connection shell (7) is fixedly connected to a fixed ring (10). The fixed ring (10) is rotatably connected to a rotating plate (8) inside. The rotating plate (8) is fixedly connected to the movable ring (15) via a shaft rod.

3. The actuator assembly for a stapler according to claim 2, characterized in that: A T-shaped limiting plate (9) is inserted into the upper end of the rotating plate (8), a plurality of fixing grooves are opened on the inner wall of the fixing ring (10), and the fixing grooves are matched with the T-shaped limiting plate (9), and a supporting spring is installed between the bottom end of the T-shaped limiting plate (9) and the bottom end of the rotating plate (8).

4. The actuator assembly for a stapler according to claim 2, characterized in that: The two double-headed screws (12) are sleeved with arc-shaped clamping plates (11) near both ends, and the outer walls of the two arc-shaped clamping plates (11) are fixedly connected to the limiting blocks (14). The two outer walls of the actuator (5) are provided with limiting grooves, and the limiting grooves are matched with the limiting blocks (14); One end of each of the two double-headed screws (12) is fixedly connected to a gear (13); the outer wall of the movable ring (15) is provided with a plurality of tooth grooves, and the plurality of tooth grooves are meshed with the gear (13).

5. The actuator assembly for a stapler according to claim 1, characterized in that: The outer wall of the handle (4) is provided with an arc groove (25), a slide rod (26) is inserted into the arc groove (25), one end of the slide rod (26) is fixedly connected to the circular movable block (33), the inner wall of the actuator (5) is provided with a long groove, a limiting short rod (27) is inserted into the long groove, a return spring is installed between one end of the limiting short rod (27) and the inner wall of the long groove, and the outer wall of the slide rod (26) is provided with a circular groove, and the circular groove fits with one end of the limiting short rod (27).

6. The actuator assembly for a stapler according to claim 1, characterized in that: The connection mechanism comprises two fixed frames (23) and a plurality of fixed blocks (16); the two fixed frames (23) are fixedly mounted on the outer wall of a circular bearing plate (36); the plurality of fixed blocks (16) are fixedly connected to the outer wall of a rotating connecting member (3); a cross bar (31) is fixedly mounted inside the two fixed frames (23); a sliding block (32) and two supporting springs are sleeved outside the cross bar (31).

7. An actuator assembly for a stapler according to claim 6, characterized in that: The outer wall of the slider (32) is fixedly connected with a clamping plate (24), and the clamping plate (24) is internally rotatably connected with two transverse shafts (35). The outsides of the two transverse shafts (35) are fixedly connected with L-shaped clamping plates (28), and the outsides of the two transverse shafts (35) are sleeved with tension springs (29) at positions close to one side of the L-shaped clamping plates (28). One end of the two L-shaped clamping plates (28) is rotatably connected with a movable wheel (30) through an axle rod, and the movable wheel (30) is matched with the fixed block (16).

8. The actuator assembly for a stapler according to claim 1, characterized in that: The upper surface of the handle (4) is fixedly connected to two vertical rods (19), a lower pressing block (18) is sleeved between the outsides of the two vertical rods (19), an adjusting screw (21) is fixedly connected to the upper surface of the lower pressing block (18), two baffles (22) are fixedly connected to the outer walls of the two vertical rods (19) near the upper ends, and a nut (20) is sleeved outside the adjusting screw (21) and located between the two baffles (22).

9. The actuator assembly for a stapler according to claim 7, characterized in that: A connecting rod (34) is fixedly connected between the upper end surfaces of the two clamping plates (24), and the connecting rod (34) is slidably connected to the lower pressing block (18).

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