Disposable endoscope cutting anastomat

Abstract

The utility model relates to the technical field of surgical instruments, in particular to a disposable endoscope cutting anastomat, which is characterized in that a grab handle and a trigger plate arranged at the front end of the grab handle are assembled at the rear end of a gun body, and a horizontal adjusting mechanism for front-back adjustment of the grab handle is arranged on the connecting surface of the grab handle and the gun body; the connecting end of the grab handle and the horizontal adjusting mechanism is further provided with an angle adjusting mechanism for rotation adjustment of the grab handle, the horizontal adjusting mechanism comprises a rail, a threaded rod and a sliding frame, the rail is fixedly arranged on the lower side of the gun body, the threaded rod penetrates through the rail and is provided with a first hand wheel, and the sliding frame is arranged on the threaded rod in a threaded mode. The angle adjusting mechanism is in sliding fit with the threaded rod through a sliding frame. According to the endoscope cutting anastomat, the angle adjusting mechanism and the horizontal adjusting mechanism are additionally arranged between the gun body and the grab handle, front-back adjustment and angle adjustment can be achieved at the same time, and medical staff can adjust the grab handle and the trigger plate to be in a comfortable posture when operating the grab handle and the trigger plate; and discomfort caused by improper postures when the endoscope cutting anastomat is operated is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical instruments, in particular to a disposable laparoscopic cutting stapler. Background Art

[0002] Laparoscopic surgery has been widely used in modern surgical operations and is favored by medical staff and patients due to its advantages such as small trauma and quick recovery. During laparoscopic surgery, a laparoscopic cutting stapler is one of the commonly used surgical instruments for tissue cutting and suturing.

[0003] Traditional laparoscopic cutting staplers usually adopt a fixed handle and barrel design, which limits the flexibility and comfort of medical staff during the operation. In some complex surgical operations, the angle of the barrel restricts the position of the handle, forcing medical staff to adjust their postures to adapt to different operating angles and positions. This not only increases the difficulty of the operation but also causes great discomfort to medical staff.

[0004] To solve this problem, some attempts at adjustable designs have emerged in the prior art. For example, the patent with the authorization announcement number CN115068030B discloses a detachable laparoscopic stapler, which adjusts the angles of the handle and the trigger lever through a second transmission component, enabling the trigger lever and the handle to rotate synchronously during angle adjustment. This angle adjustment method has a wide adjustment range, facilitating doctors to adapt to different adjustment angles, reducing the effort required for doctors to hold the device, and making the device more stable during anastomosis operations, thereby improving the overall practicality of the device. Another example is the patent with the authorization announcement number CN219557431U, which discloses a stapler with adjustable handle spacing that can adjust the spacing between the firing handle and the fixed handle according to the operating habits of medical staff.

[0005] However, the above-mentioned laparoscopic cutting staplers only adjust the angle of the handle alone or only adjust the spacing between the handle and the trigger plate. When adjusting the angle of the handle alone, the spacing between the handle and the trigger plate is also likely to cause discomfort to medical staff during holding. If it can have both the function of adjusting the handle angle and the function of adjusting the spacing between the handle and the trigger plate, and reduce the discomfort caused by the spacing change after handle adjustment through the adjustment of the spacing between the handle and the trigger plate, it can enable medical staff to maintain a more comfortable posture when operating the handle and the trigger plate, and further reduce the discomfort caused by improper postures when medical staff operate the laparoscopic cutting stapler. Summary of the Utility Model

[0006] In order to solve the problem that the existing handle angle and the distance from the trigger plate cannot be adjusted simultaneously, the utility model provides a disposable laparoscopic cutting stapler, which can realize the front-back adjustment and the angle adjustment at the same time, enabling medical staff to adjust to a more comfortable posture when operating the handle and the trigger plate, and reducing the discomfort caused by improper posture when operating the laparoscopic cutting stapler.

[0007] The utility model provides a disposable laparoscopic cutting stapler, which includes a gun body. A rotating head is assembled at the front end of the gun body, a barrel is assembled at the front end of the rotating head, a handle and a trigger plate placed at the front end of the handle are assembled at the rear end of the gun body. A horizontal adjustment mechanism for the front-back adjustment of the handle is arranged on the connection surface between the handle and the gun body, and an angle adjustment mechanism for the rotational adjustment of the handle is also arranged at the connection end between the handle and the horizontal adjustment mechanism. First, adjust the angle of the handle through the angle adjustment mechanism, and then use the horizontal adjustment mechanism to adjust the distance between the handle and the trigger plate to adapt to different operating postures of medical staff.

[0008] Furthermore, the horizontal adjustment mechanism includes a track, a threaded rod, and a carriage. The track is fixedly arranged on the lower side of the gun body, the threaded rod penetrates through the track and is provided with a first handwheel, and the carriage is screwed on the threaded rod. The angle adjustment mechanism is slidably matched with the threaded rod through the carriage. Adjust the position of the carriage on the threaded rod through the first handwheel.

[0009] Furthermore, the angle adjustment mechanism includes a connecting frame, a first worm gear, and a first worm. The connecting frame is fixedly connected with the carriage. A first rotating rod is arranged along the length direction inside the connecting frame, the first worm is fixedly arranged on the first rotating rod, and the first worm gear meshing with the first worm is fixedly arranged at the upper end of the handle. Adjust the angle of the handle through the cooperation of the first worm gear and the first worm.

[0010] Furthermore, a second rotating rod is also arranged inside the connecting frame. The second rotating rod penetrates through the connecting frame and is provided with a second handwheel. The second rotating rod is arranged parallel to the first rotating rod. A second gear is fixedly arranged on the second rotating rod, and a first gear meshing with the second gear is arranged on the first rotating rod. Further adjust the angle of the handle through the meshing first gear and second gear.

[0011] Furthermore, an auxiliary pull ring is arranged on the side of the trigger plate close to the handle, and a rope winding mechanism for adjusting the auxiliary pull ring is arranged on the side of the trigger plate far from the handle. Control the distance between the auxiliary pull ring and the handle through the rope winding mechanism, so that the trigger plate can be operated more comfortably.

[0012] Furthermore, the rope winding mechanism includes a housing, a rope winding wheel, and a pull rope. The housing is fixedly connected with the trigger plate. The rope winding wheel is arranged inside the housing. One end of the pull rope is fixed on the rope winding wheel, and the other end penetrates through the housing and the trigger plate to connect the auxiliary pull ring. The rope winding wheel is used to wind and unwind the pull rope to adjust the distance between the auxiliary pull ring and the handle.

[0013] Further, a second worm gear coaxial with the rope winding wheel is provided on the rope winding wheel, and a second worm engaged with the second worm gear is provided in the housing. The second worm penetrates through the housing and is provided with a third handwheel. By rotating the second worm with the third handwheel, the second worm gear is driven to rotate, that is, the winding and unwinding are realized.

[0014] Further, a magnetic stone plate is provided on one side of the trigger plate close to the handle, and a magnetic material matching with the magnetic stone plate is adopted on one side of the auxiliary pull ring close to the trigger plate. Through the cooperation of the magnetic material and the magnetic stone plate, it is convenient to store the auxiliary pull ring.

[0015] The beneficial effects of the present utility model are as follows:

[0016] The present utility model provides a disposable endoscopic cutting stapler. By adding an angle adjustment mechanism and a horizontal adjustment mechanism between the body and the handle of the endoscopic cutting stapler, medical staff can adjust the angle and position of the handle according to their own needs when using the endoscopic cutting stapler; and through the cooperation of the auxiliary pull ring and the rope winding mechanism, medical staff can maintain a relatively comfortable posture when operating the handle and the trigger plate, reducing the discomfort caused by improper posture when operating the endoscopic cutting stapler. Description of the Drawings

[0017] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a structural schematic diagram of the endoscopic cutting stapler;

[0019] Figure 2 is a structural schematic diagram of the horizontal adjustment mechanism and the angle adjustment mechanism;

[0020] Figure 3 is a structural schematic diagram of the rope winding mechanism;

[0021] Figure 4 is a schematic diagram of the use state;

[0022] In the figure, 1. body, 2. rotating head, 3. barrel, 4. handle, 5. trigger plate, 6. track, 7. threaded rod, 8. carriage, 9. first handwheel, 10. connecting frame, 11. first worm gear, 12. first worm, 13. first rotating rod, 14. second rotating rod, 15. second handwheel, 16. second gear, 17. first gear, 18. auxiliary pull ring, 19. housing, 20. rope winding wheel, 21. pull rope, 22. second worm gear, 23. second worm, 24. third handwheel. Detailed implementation mode

[0023] The technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present utility model, but not all of them.

[0024] In order to facilitate medical staff to adjust the angle and position of the handle 4 according to their own needs when using the laparoscopic cutting stapler, a disposable laparoscopic cutting stapler is designed. As Figure 1 shown, it includes a gun body 1, a rotating head 2 is assembled at the front end of the gun body 1, a barrel 3 is assembled at the front end of the rotating head 2, a handle 4 is assembled at the rear end of the gun body 1, and a trigger plate 5 is arranged at the front end of the handle 4. The specific structure of the laparoscopic cutting stapler is a mature existing technology. For reference, please refer to a disposable laparoscopic cutting stapler with the authorization announcement number CN210019490U, a structure of a disposable laparoscopic cutting stapler with the authorization announcement number CN210019486U, and a disposable laparoscopic cutting stapler convenient for use with the authorization announcement number CN215079137U.

[0025] The core of this technical solution lies in the improvement of the handle 4, enabling medical staff to maintain a relatively comfortable posture when operating the laparoscopic cutting stapler and reducing the discomfort caused by improper posture when operating the laparoscopic cutting stapler.

[0026] As Figure 4 shown, on the connection surface between the handle 4 and the gun body 1, a horizontal adjustment mechanism for the front and back adjustment of the handle 4 is provided, and an angle adjustment mechanism for the rotational adjustment of the handle 4 is also provided at the connection end of the handle 4 and the horizontal adjustment mechanism. Before using the laparoscopic cutting stapler, according to the placement angle of the barrel 3 during the operation, adjust the angle adjustment mechanism to control the placement angle of the handle 4, and then adjust the horizontal adjustment mechanism to control the distance between the handle 4 and the trigger plate 5, so that medical staff can maintain a relatively comfortable posture when operating the handle 4 and the trigger plate 5.

[0027] As Figure 2 shown, specifically, the horizontal adjustment mechanism includes a track 6, a threaded rod 7, and a carriage 8. The track 6 is fixedly arranged on the lower side of the gun body 1. The threaded rod 7 penetrates through the track 6 and is provided with a first handwheel 9. The carriage 8 is screwed on the threaded rod 7. The angle adjustment mechanism is slidably matched with the threaded rod 7 through the carriage 8. The angle adjustment mechanism is assembled on the carriage 8, and a threaded rod 7 that is rotationally connected to the track 6 and threadedly connected to the carriage 8 is provided, so as to stably adjust the carriage 8 and make the carriage 8 have good self-locking performance.

[0028] The angle adjustment mechanism includes a connecting frame 10, a first worm gear 11 and a first worm 12. The connecting frame 10 is fixedly connected to the carriage 8. A first rotating rod 13 is arranged along the length direction inside the connecting frame 10. The first worm 12 is fixedly arranged on the first rotating rod 13, and the first worm gear 11 meshing with the first worm 12 is fixedly arranged at the upper end of the handle 4. When the first worm gear 11 rotates, the angle of the handle 4 can be adjusted. The first worm 12 meshing with the first worm gear 11 is fixedly connected to the first rotating rod 13. When the first rotating rod 13 drives the first worm 12 to rotate, the first worm gear 11 can be driven to rotate, and the first worm gear 11 is automatically locked after the rotation is completed, so as to lock the angle of the handle 4.

[0029] A second rotating rod 14 is further arranged inside the connecting frame 10. The second rotating rod 14 penetrates through the connecting frame 10 and is provided with a second handwheel 15. The second rotating rod 14 is arranged parallel to the first rotating rod 13. A second gear 16 is fixedly arranged on the second rotating rod 14, and a first gear 17 meshing with the second gear 16 is arranged on the first rotating rod 13. The first gear 17 is a large-diameter gear, and the second gear 16 is a small-diameter gear. The angle of the handle 4 can be adjusted more precisely through the meshing ratio setting of the first gear 17 and the second gear 16.

[0030] As Figure 3 shown, in order to enable the trigger plate 5 to be operated more comfortably when the handle 4 is adjusted, an auxiliary pull ring 18 is arranged on the side of the trigger plate 5 close to the handle 4, and a rope winding mechanism for adjusting the auxiliary pull ring 18 is arranged on the side of the trigger plate 5 far from the handle 4. The rope winding mechanism can adjust the length of the pull rope 21 located outside the rope winding mechanism by winding and unwinding the pull rope 21, that is, adjust the distance between the auxiliary pull ring 18 and the handle 4.

[0031] After the angle of the handle 4 is adjusted, the medical staff holds the handle 4, and then operates the rope winding mechanism to unwind the pull rope 21 according to the position of the handle 4 until the auxiliary pull ring 18 moves near the handle 4, so that the medical staff can insert their fingers into the auxiliary pull ring 18. When the medical staff pulls the auxiliary pull ring 18, the trigger plate 5 can be pulled by the pulling force transmitted by the pull rope 21, so as to adapt to the angle adjustment of the handle 4, and the trigger plate 5 can be operated more comfortably when the handle 4 maintains different angles.

[0032] The rope winding mechanism includes a housing 19, a rope winding wheel 20 and a pulling rope 21. The housing 19 is fixedly connected to the trigger plate 5. A rope winding wheel 20 is arranged inside the housing 19. One end of the pulling rope 21 is fixed on the rope winding wheel 20, and the other end passes through the housing 19 and the trigger plate 5 to connect to the auxiliary pulling ring 18. A second worm gear 22 coaxial with the rope winding wheel 20 is also arranged on the rope winding wheel 20. A second worm 23 meshing with the second worm gear 22 is arranged inside the housing 19. The second worm 23 passes through the housing 19 and is provided with a third handwheel 24. By rotating the second worm 23, the second worm gear 22 can be pushed, thereby rotating the rope winding wheel 20, and the rope winding wheel 20 can be locked by the second worm 23 and the second worm gear 22 after the rotation is completed.

[0033] A magnetic stone is arranged on one side of the trigger plate 5 close to the handle 4. The side of the auxiliary pulling ring 18 close to the trigger plate 5 is made of a magnetic material that cooperates with the magnetic stone, such as metals like iron, nickel, cobalt, etc. The magnetic stone can magnetically adsorb and fix the auxiliary pulling ring 18, and can fix the auxiliary pulling ring 18 on the trigger plate 5 when not in use, which is convenient for storage.

[0034] Before using the endoscopic cutting stapler, according to the placement angle of the barrel 3 during the operation, adjust the angle adjustment mechanism to control the placement angle of the handle 4, and then adjust the horizontal adjustment mechanism to control the distance between the handle 4 and the trigger plate 5, so that medical staff can maintain a relatively comfortable posture when operating the handle 4 and the trigger plate 5. For example, when the insertion angle of the barrel 3 is at an angle of 60° with the horizontal plane and it is more comfortable for the medical staff to hold the handle 4 horizontally, then rotate the second rotating rod 14 to rotate the handle 4 until the handle 4 can be horizontally set when the insertion angle of the barrel 3 is 60°; after the angle of the handle 4 is adjusted, rotate the threaded rod 7 to control the carriage 8 and the handle 4 to move back and forth, adjust the distance between the handle 4 and the trigger plate 5. After the adjustment is completed, the medical staff holds the handle 4, and then operates the rope winding mechanism to unwind the pulling rope 21 according to the position of the handle 4 until the auxiliary pulling ring 18 moves near the handle 4, so that the medical staff can insert their fingers into the auxiliary pulling ring 18 to pull the auxiliary pulling ring 18.

[0035] The above description is illustrative rather than restrictive to the present invention. Those of ordinary skill in the art understand that many modifications, variations or equivalents can be made without departing from the spirit and scope defined by the appended claims, but all will fall within the protection scope of the present invention.

Claims

1. Disposable laparoscopic cutting stapler, comprising a gun body (1), a rotating head (2) is assembled at the front end of the gun body (1), a barrel (3) is assembled at the front end of the rotating head (2), a handle (4) is assembled at the rear end of the gun body (1), and a trigger plate (5) is arranged at the front end of the handle (4). It is characterized in that: A horizontal adjustment mechanism for front-back adjustment of the handle (4) is arranged on the connecting surface between the handle (4) and the gun body (1), and an angle adjustment mechanism for rotational adjustment of the handle (4) is further arranged at the connecting end of the handle (4) and the horizontal adjustment mechanism.

2. The disposable laparoscopic cutting stapler according to claim 1, wherein: The horizontal adjustment mechanism comprises a track (6), a threaded rod (7) and a carriage (8). The track (6) is fixedly arranged on the lower side of the gun body (1). The threaded rod (7) penetrates through the track (6) and is provided with a first handwheel (9). The carriage (8) is screwed on the threaded rod (7). The angle adjustment mechanism is in sliding fit with the threaded rod (7) through the carriage (8).

3. The disposable endoscopic cutting stapler according to claim 2, wherein: The angle adjustment mechanism comprises a connecting frame (10), a first worm gear (11) and a first worm (12). The connecting frame (10) is fixedly connected with the carriage (8). A first rotating rod (13) is arranged along the length direction in the connecting frame (10). The first worm (12) is fixedly arranged on the first rotating rod (13). The first worm gear (11) meshing with the first worm (12) is fixedly arranged at the upper end of the handle (4).

4. The disposable endoscopic cutting stapler according to claim 3, characterized in that: A second rotating rod (14) is further arranged in the connecting frame (10). The second rotating rod (14) penetrates through the connecting frame (10) and is provided with a second handwheel (15). The second rotating rod (14) is arranged in parallel with the first rotating rod (13). A second gear (16) is fixedly arranged on the second rotating rod (14). A first gear (17) meshing with the second gear (16) is arranged on the first rotating rod (13).

5. The disposable endoscopic cutting stapler according to claim 1, wherein: An auxiliary pull ring (18) is arranged on one side of the trigger plate (5) close to the handle (4), and a rope winding mechanism for adjusting the auxiliary pull ring (18) is arranged on the side of the trigger plate (5) far from the handle (4).

6. The disposable endoscopic stapler according to claim 5, wherein: The rope winding mechanism comprises a housing (19), a rope winding wheel (20) and a pulling rope (21). The housing (19) is fixedly connected with the trigger plate (5). A rope winding wheel (20) is arranged in the housing (19). One end of the pulling rope (21) is fixed on the rope winding wheel (20), and the other end penetrates through the housing (19) and the trigger plate (5) to be connected with the auxiliary pull ring (18).

7. The disposable endoscopic cutting stapler according to claim 6, wherein: A second worm gear (22) coaxial with the rope winding wheel (20) is further arranged on the rope winding wheel (20). A second worm (23) meshing with the second worm gear (22) is arranged in the housing (19). The second worm (23) penetrates through the housing (19) and is provided with a third handwheel (24).

8. The disposable endoscopic cutting stapler according to claim 5, characterized in that: A magnetic stone plate is arranged on one side of the trigger plate (5) close to the handle (4), and a magnetic material for cooperating with the magnetic stone plate is adopted on the side of the auxiliary pull ring (18) close to the trigger plate (5).

Images