Thread hooking device for extraocular surgery

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a thread hooking device for extraocular surgery, which comprises a handle, a support plate fixedly mounted on the handle, a connector fixedly mounted at one end of the support plate, a limiting block fixedly mounted on the connector, a sliding groove formed in the connector and a pressure block arranged on the connector. A through groove is formed in the supporting plate, a movable groove is formed in the handle, a winding wheel is arranged in the movable groove, the through groove communicates with the movable groove, and the winding wheel is fixedly connected with a traction rope. According to the thread hooking device for the extraocular surgery, due to the arrangement of the limiting hole and the pressing block, a surgical suture can be well limited, the surgical efficiency is improved, the winding wheel is rotated to drive the pressing block to move, and when the winding wheel does not wind the traction rope any more, the reset spring is reset; the connecting block is pushed to drive the pressure applying block to synchronously move to limit and clamp the suture, so that the stability of the surgical suture is improved, the surgical suture is prevented from accidentally falling off, and the surgical efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical instruments, and specifically relates to a thread-hooking device for external eye surgery. Background Art

[0002] The thread-hooking device for external eye surgery is mainly used as an auxiliary tool during the operation. During the operation, the thread-hooking device can help the doctor adjust the eye structure, expose the surgical area, and facilitate necessary operations. Through the thread-hooking device, the doctor can achieve more precise suturing and cutting, reduce damage to surrounding tissues, improve the success rate of the operation, help the doctor accurately guide the suture thread, pass the suture thread through the tissue through the surgical incision for suturing, which helps to improve the efficiency and precision of suturing during the operation, can conveniently introduce the suture thread into the part that needs to be sutured, making it easier for the doctor to complete the suturing operation. Especially in the complex anatomical structure of the eye, it can reduce damage to surrounding healthy tissues, thereby reducing the risk of postoperative complications.

[0003] A Chinese patent with the publication number CN118662297A discloses a thread-hooking device for external eye surgery, which includes a handle, a thread-hooking rod, a clamping assembly, and a rotating assembly; the thread-hooking rod is fixedly arranged on the handle, and a barb is arranged at one end of the thread-hooking rod away from the handle; the clamping assembly is slidably arranged on the handle and can squeeze the barb of the thread-hooking rod; the rotating assembly is rotatably connected to the handle, and the rotation of the rotating assembly can drive the clamping assembly to slide. The above-mentioned thread-hooking device for external eye surgery can stably lift the surgical thread and is not easy to fall off.

[0004] When the existing thread-hooking device for external eye surgery is in use, it cannot effectively limit the surgical suture well. When hooking the surgical suture, the suture is prone to separation from the thread-hooking device, which has certain limitations and affects the working efficiency of the operation.

[0005] Therefore, the present invention provides a thread-hooking device for external eye surgery. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve the problem of inconveniently limiting the surgical suture well, the present invention provides a thread-hooking device for external eye surgery.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A thread-hooking device for external eye surgery according to the present invention includes a handle, a support plate is fixedly installed on the handle, a connection head is fixedly installed at one end of the support plate, a limit block is fixedly installed on the connection head, a chute is arranged inside the connection head, a pressing block is arranged on the connection head, and the pressing block is located on one side of the limit block. A through groove is arranged inside the support plate, and the through groove is communicated with the chute. An activity groove is arranged inside the handle, circular grooves are symmetrically arranged inside the handle, and the circular grooves are communicated with the activity groove. A rotating shaft is arranged inside the circular groove, a winding wheel is arranged inside the activity groove, and one end of the rotating shaft is fixedly connected to the center position of the winding wheel. The through groove is communicated with the activity groove. The winding wheel is fixedly connected with a traction rope, and one end of the traction rope extends into the through groove. A square groove is arranged inside the support plate, a transmission component is arranged inside the square groove, a negative pressure component is arranged inside the support plate, and a positioning component is arranged inside the handle.

[0008] By adopting the above technical solution, by rotating the winding wheel, the winding wheel will rotate smoothly through the cooperation of the circular groove and the rotating shaft. When the winding wheel rotates, the traction rope will be wound, and then the traction rope will move. When the traction rope moves, it will drive the transmission component to move. Through the transmission component, the pressing block will be driven to move. When the pressing block is separated from the limit block, after setting the suture between the limit block and the pressing block, rotate the winding wheel in the reverse direction to reset the winding wheel and no longer limit the traction rope. Through the reset of the transmission component, the pressing block will be driven to reset. When the pressing block resets, the suture will be limited through the cooperation of the limit block, thereby improving the stability of the surgical suture.

[0009] Preferably, arc-shaped plates are symmetrically installed on the handle, and the arc-shaped plates are made of rubber and are semi-circular in shape.

[0010] By adopting the above technical solution, the thread-hooking device for external eye surgery can be taken by the handle, and the stability of taking can be improved through the arc-shaped plates.

[0011] Preferably, the transmission component includes a connection block, a guide rod, a return spring, and through holes. The connection block is arranged inside the square groove, and the square groove is communicated with the through groove. The guide rod is fixedly installed inside the square groove. The return spring is arranged around the guide rod. The through holes are symmetrically arranged on the connection block, and the guide rod penetrates through the corresponding through holes. A driving plate is fixedly installed on the connection block, and one end of the driving plate extends into the chute. A connection mechanism is arranged on the driving plate. A sealing ring is fixedly installed inside the chute, and the driving plate penetrates through the sealing ring.

[0012] By adopting the above technical solution, when the winding wheel rotates to wind the towing rope, the movement of the towing rope will drive the connecting block to move. The guide rod and the through hole cooperate to enable the connecting block to move smoothly. The movement of the connecting block will drive the driving plate to move, and the driving plate will drive the pressing block to move. When the winding wheel moves in the reverse direction and stops winding the towing rope, the return spring resets and pushes the connecting block to move. The reset of the connecting block will drive the driving plate to move synchronously.

[0013] Preferably, the connecting mechanism includes a square block and a slot. The square block is fixedly installed on the top of the driving plate, and the top end of the square block is fixedly connected to the pressing block. The slot is arranged inside the square block.

[0014] By adopting the above technical solution, when the driving plate moves, it will drive the square block to move. When the square block moves, it will drive the pressing block to move synchronously and will also drive the slot to move synchronously. After the slot moves and slews on the support block, when limiting and clamping the suture, the negative pressure hole will be located directly below the suture. When the negative pressure hole generates negative pressure, it will limit and adsorb the suture above, thereby further improving the stability of suture limitation and facilitating the limitation of the suture.

[0015] Preferably, the negative pressure assembly includes a strip-shaped groove, a negative pressure groove, a connecting pipe, a piston block, and a driving assembly. The strip-shaped grooves are symmetrically arranged inside the support plate and are communicated with the through groove. The negative pressure groove is fixedly installed inside the strip-shaped groove. The connecting pipe is fixedly installed on the negative pressure groove. The piston block is arranged inside the negative pressure groove. The driving assembly is arranged inside the strip-shaped groove, and the driving plate is connected to the piston block through the driving assembly.

[0016] By adopting the above technical solution, when the driving plate resets to drive the pressing block to reset and limit the suture, it will drive the driving assembly to move synchronously. The driving mechanism moves to drive the piston block to move. When the piston block moves, the air inside the negative pressure hole will be extracted through the cooperation of the negative pressure groove and the connecting pipe, thereby causing the negative pressure hole to generate suction and limit the taken surgical suture.

[0017] Preferably, the driving assembly includes a driving rod, a driving block, and a fixing ring. One end of the driving rod is fixedly connected to the central position of the piston block. The driving block is fixedly connected to one end of the driving rod. The fixing ring is fixedly installed on the driving plate, and the driving block is fixedly connected to the fixing ring. A limiting ring is fixedly arranged inside the strip-shaped groove, and the driving rod passes through the limiting ring.

[0018] By adopting the above technical solution, when the driving plate moves, it will drive the fixing ring to move. When the fixing ring moves, it will drive the driving rod to move through the driving block. The movement of the driving rod will drive the piston block to move synchronously. Through the cooperation of the negative pressure groove, negative pressure will be generated to extract the air inside the negative pressure hole.

[0019] Preferably, a support block is fixedly installed inside the sliding groove. A negative pressure hole is embedded inside the support block, and the negative pressure hole is communicated with the connecting pipe.

[0020] By adopting the above technical solution, when the square block moves to drive the pressing block and the limiting block to reset and limit the hook line, the support block will be inserted into the slot, and then the negative pressure hole will be located below the surgical suture. When the negative pressure hole generates negative pressure, it will limit the surgical suture.

[0021] Preferably, the outer wall size of the support block matches the inner wall size of the slot.

[0022] By adopting the above technical solution, after the support block enters the slot, the negative pressure hole will be located directly below the surgical suture.

[0023] Preferably, the positioning assembly includes a cylinder, a driving mechanism, a threaded rod, a threaded ring and a positioning rod. The threaded ring is fixedly installed inside the handle. The cylinder is arranged inside the handle and is communicated with the moving slot. The inner ring of the threaded ring is communicated with the inside of the cylinder. The threaded rod is threadedly connected with the threaded ring. One end of the positioning rod is fixedly connected with the threaded rod. The driving mechanism is arranged inside the cylinder.

[0024] Preferably, the driving mechanism includes a driving shaft and a knob. The driving shaft is arranged inside the cylinder, and one end of the driving shaft is fixedly connected with the threaded rod. The center position of the knob is fixedly connected with one end of the threaded rod.

[0025] By adopting the above technical solution, by rotating the knob, the driving shaft will be driven to rotate inside the cylinder. When the driving shaft rotates, it will drive the threaded rod to rotate. Through the cooperation of the threaded ring, the threaded rod will move. When the threaded rod moves, it will drive the positioning rod to move. Then one end of the positioning rod will contact the winding wheel, and the position of the winding wheel will be positioned to prevent the winding wheel from rotating. Furthermore, by positioning the position of the winding wheel, the position of the pressing block can be positioned.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1. For the hook line device for external eye surgery of the present invention, through the provided limiting holes and pressing blocks, it is convenient to limit the surgical suture well, perform suture operations, improve the surgical efficiency. When hooking the surgical suture to suture the wound, rotating the winding wheel to wind the traction rope will drive the connecting block to move. Through the driving plate, the pressing block will be driven to move. When the winding wheel moves in the reverse direction and no longer winds the traction rope, the reset spring resets, which will push the connecting block to move, drive the pressing block to move synchronously to limit and clamp the suture, improve the stability of the surgical suture, avoid accidental dropping of the surgical suture, improve the surgical efficiency, and can effectively avoid accidental detachment of the suture when suturing the eye wound.

[0028] 2. The wire-hooking device for external eye surgery according to the present invention can further improve the stability of the surgical gap through the arrangement of the negative pressure holes. The negative pressure holes are located directly below the suture. When the driving plate moves, the piston block is driven to move through the driving mechanism. When the piston block moves, the air inside the negative pressure holes is extracted through the cooperation of the negative pressure groove and the connecting pipe, thereby generating suction in the negative pressure holes to limit the hooked surgical suture. When negative pressure is generated in the negative pressure holes, the suture above is limited and adsorbed, further improving the stability of suture limitation, facilitating suture limitation, and suturing the wound after external eye surgery, which can further improve the stability of the position of the surgical suture.

[0029] 3. The wire-hooking device for external eye surgery according to the present invention, when the driving plate moves to drive the compression block to squeeze the air inside the negative pressure groove, the squeezed air flows into the negative pressure holes 30 and then flows upward. When there are secretions adsorbed on the limiting block on the suture, the flowing air can push the gap to separate from the wire-hooking device for external eye surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below with reference to the accompanying drawings.

[0031] Figure 1 is a perspective view of the wire-hooking device for external eye surgery of the present invention;

[0032] Figure 2 is a top view structural schematic diagram of the present invention;

[0033] Figure 3 is the present invention Figure 2 a magnified structural schematic diagram of A in;

[0034] Figure 4 is a structural schematic diagram of the driving plate in the present invention;

[0035] Figure 5 is a structural schematic diagram of the winding wheel in the present invention;

[0036] Figure 6 is a structural schematic diagram of the connecting head in the present invention;

[0037] Figure 7 is a structural schematic diagram of the support block in the present invention.

[0038] In the figure: 1. Handle; 2. Arc-shaped plate; 3. Support plate; 4. Limit block; 5. Connector; 6. Slide groove; 7. Pressing block; 8. Movable groove; 9. Winding wheel; 10. Circular groove; 11. Rotating shaft; 12. Through groove; 13. Traction rope; 14. Square groove; 15. Connecting block; 16. Guide rod; 17. Return spring; 18. Driving plate; 19. Through hole; 20. Slot; 21. Strip-shaped groove; 22. Negative pressure groove; 23. Connecting pipe; 24. Piston block; 25. Driving rod; 26. Driving block; 27. Fixed ring; 28. Limit ring; 29. Support block; 30. Negative pressure hole; 31. Cylinder; 32. Driving shaft; 33. Knob; 34. Threaded rod; 35. Threaded ring; 36. Positioning rod; 37. Square block; 38. Sealing ring. Detailed implementation manner

[0039] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with the specific implementation manners.

[0040] As Figures 1 to 7As shown in the figure, a thread-hooking device for external eye surgery according to an embodiment of the present invention includes a handle 1. A support plate 3 is fixedly installed on the handle 1. One end of the support plate 3 is fixedly installed with a connector 5. A limit block 4 is fixedly installed on the connector 5. A chute 6 is arranged inside the connector 5. A pressing block 7 is arranged on the connector 5, and the pressing block 7 is located on one side of the limit block 4. A through groove 12 is arranged inside the support plate 3, and the through groove 12 communicates with the chute 6. An activity groove 8 is arranged inside the handle 1. Circular grooves 10 are symmetrically arranged inside the handle 1, and the circular grooves 10 communicate with the activity groove 8. A rotating shaft 11 is arranged inside the circular groove 10. A winding wheel 9 is arranged inside the activity groove 8, and one end of the rotating shaft 11 is fixedly connected to the center position of the winding wheel 9. The through groove 12 communicates with the activity groove 8. The winding wheel 9 is fixedly connected with a traction rope 13, and one end of the traction rope 13 extends into the through groove 12. A square groove 14 is arranged inside the support plate 3. A transmission component is arranged inside the square groove 14. A negative pressure component is arranged inside the support plate 3. A positioning component is arranged inside the handle 1. After performing surgical treatment on a patient's external eye, it is usually necessary to suture the surgical wound. Absorbable sutures are usually used. The absorbable sutures will be naturally absorbed by the body after healing. When suturing the wound with the sutures, a thread-hooking device for external eye surgery is used to hook the surgical sutures to ensure that the application of the sutures in external eye surgery is more accurate and effective. When hooking the surgical sutures to suture the wound, rotate the winding wheel 9. The cooperation of the circular groove 10 and the rotating shaft 11 will make the winding wheel 9 rotate smoothly. When the winding wheel 9 rotates, it will wind the traction rope 13, thereby moving the traction rope 13. When the traction rope 13 moves, it will drive the transmission component to move. The pressing block 7 will be driven to move through the transmission component. After the pressing block 7 is separated from the limit block 4, after setting the suture between the limit block 4 and the pressing block 7, rotate the winding wheel 9 in the reverse direction to reset the winding wheel 9 and no longer limit the traction rope 13. Through the reset of the transmission component, the pressing block 7 will be driven to reset. When the pressing block 7 resets, the suture will be limited through the cooperation of the limit block 4, thereby improving the stability of the surgical suture, avoiding accidental dropping of the surgical suture, and improving work efficiency. At the same time, through the negative pressure component to generate negative pressure suction, the stability of the position of the surgical suture can be further improved. Through the movement of the positioning component, the position of the winding wheel 9 can be further positioned, and then the position of the pressing block 7 can be positioned. Grooves are arranged on both the pressing block 7 and the limit block 4, and the suture can also be hooked separately.

[0041] As Figure 1 shown, arc-shaped plates 2 are symmetrically installed on the handle 1, and the arc-shaped plates 2 are made of rubber. The arc-shaped plates 2 are semi-circular. The thread-hooking device for external eye surgery can be taken by holding the handle 1, and the stability of taking can be improved through the arc-shaped plates 2.

[0042] As Figure 2 and Figure 3As shown, the transmission assembly includes a connecting block 15, a guide rod 16, a return spring 17, and a through hole 19. The connecting block 15 is arranged inside the square groove 14, and the square groove 14 communicates with the through groove 12. The guide rod 16 is fixedly installed inside the square groove 14. The return spring 17 is arranged around the guide rod 16. The through holes 19 are symmetrically arranged on the connecting block 15, and the guide rod 16 passes through the corresponding through holes 19. A driving plate 18 is fixedly installed on the connecting block 15, and one end of the driving plate 18 extends into the sliding groove 6. A connecting mechanism is arranged on the driving plate 18. A sealing ring 38 is fixedly installed inside the sliding groove 6, and the driving plate 18 passes through the sealing ring 38. The sealing ring 38 is used to seal the gap between the driving plate 18 and the sliding groove 6, effectively preventing impurities from flowing into the through groove 12, which is not easy to clean and disinfect later. When the winding wheel 9 rotates to wind the traction rope 13, the movement of the traction rope 13 will drive the connecting block 15 to move. The cooperation between the guide rod 16 and the through hole 19 will make the connecting block 15 move smoothly. The movement of the connecting block 15 will drive the driving plate 18 to move, and the driving plate 18 will drive the pressing block 7 to move. When the winding wheel 9 moves in the reverse direction and stops winding the traction rope 13, the return spring 17 will reset and push the connecting block 15 to move. The reset of the connecting block 15 will drive the driving plate 18 to move synchronously. When the driving plate 18 moves, it will drive the pressing block 7 to move synchronously through the connecting mechanism to limit and clamp the suture thread.

[0043] As Figure 4 and Figure 7 shown, the connecting mechanism includes a square block 37 and a slot 20. The square block 37 is fixedly installed on the top of the driving plate 18, and the top end of the square block 37 is fixedly connected to the pressing block 7. The slot 20 is arranged inside the square block 37. When the driving plate 18 moves, it will drive the square block 37 to move. When the square block 37 moves, it will drive the pressing block 7 to move synchronously, and at the same time, it will drive the slot 20 to move synchronously. After the slot 20 moves and sleeves on the support block 29, when limiting and clamping the suture thread, the negative pressure hole 30 will be located directly below the suture thread. When the negative pressure hole 30 generates negative pressure, it will limit and adsorb the suture thread above, thereby further improving the stability of limiting the suture thread, facilitating the limitation of the suture thread, and suturing the wound after external eye surgery.

[0044] As Figure 2 and Figure 6As shown, the negative pressure assembly includes a strip-shaped groove 21, a negative pressure groove 22, a connecting pipe 23, a piston block 24 and a driving assembly. The strip-shaped groove 21 is symmetrically arranged inside the support plate 3, and the strip-shaped groove 21 communicates with the through groove 12. The negative pressure groove 22 is fixedly installed inside the strip-shaped groove 21. The connecting pipe 23 is fixedly installed on the negative pressure groove 22. The piston block 24 is arranged inside the negative pressure groove 22. The driving assembly is arranged inside the strip-shaped groove 21, and the driving plate 18 is connected to the piston block 24 through the driving assembly. When the driving plate 18 resets to drive the pressing block 7 to reset and limit the suture, it will drive the driving assembly to move synchronously. The driving mechanism moves to drive the piston block 24 to move. When the piston block 24 moves, it will extract the air inside the negative pressure hole 30 through the cooperation of the negative pressure groove 22 and the connecting pipe 23. Furthermore, it will cause the negative pressure hole 30 to generate suction, limit the hooked surgical suture, improve the stability of the surgical suture, and prevent the surgical suture from accidentally detaching.

[0045] As Figure 6 shown, the driving assembly includes a driving rod 25, a driving block 26 and a fixing ring 27. One end of the driving rod 25 is fixedly connected to the central position of the piston block 24. The driving block 26 is fixedly connected to one end of the driving rod 25. The fixing ring 27 is fixedly installed on the driving plate 18, and the driving block 26 is fixedly connected to the fixing ring 27. A limiting ring 28 is fixedly arranged inside the strip-shaped groove 21, and the driving rod 25 penetrates through the limiting ring 28. When the driving plate 18 moves, it will drive the fixing ring 27 to move. When the fixing ring 27 moves, it will drive the driving rod 25 to move through the driving block 26. The movement of the driving rod 25 will drive the piston block 24 to move synchronously. Through the cooperation of the negative pressure groove 22, negative pressure will be generated to extract the air inside the negative pressure hole 30.

[0046] As Figure 7 shown, a support block 29 is fixedly installed inside the sliding groove 6. A negative pressure hole 30 is embedded inside the support block 29, and the negative pressure hole 30 communicates with the connecting pipe 23. The outer wall size of the support block 29 matches the inner wall size of the slot 20. When the square block 37 moves to drive the pressing block 7 to reset and the limiting block 4 to reset to limit the hooked thread, the support block 29 will be inserted into the slot 20. Furthermore, the negative pressure hole 30 will be located below the surgical suture. When the negative pressure hole 30 generates negative pressure, it will limit the surgical suture.

[0047] As Figure 2As shown in the figure, the positioning component includes a cylinder 31, a driving mechanism, a threaded rod 34, a threaded ring 35 and a positioning rod 36. The threaded ring 35 is fixedly installed inside the handle 1. The cylinder 31 is arranged inside the handle 1 and is communicated with the moving groove 8. The inner ring of the threaded ring 35 is communicated with the inside of the cylinder 31. The threaded rod 34 is threadedly connected with the threaded ring 35. One end of the positioning rod 36 is fixedly connected with the threaded rod 34. The driving mechanism is arranged inside the cylinder 31 and includes a driving shaft 32 and a knob 33. The driving shaft 32 passes through the inside of the cylinder 31, and one end of the driving shaft 32 is fixedly connected with the threaded rod 34. The center position of the knob 33 is fixedly connected with one end of the threaded rod 34. When it is necessary to limit the position of the pressing block 7, turning the knob 33 will drive the driving shaft 32 to rotate inside the cylinder 31. When the driving shaft 32 rotates, it will drive the threaded rod 34 to rotate. Through the cooperation of the threaded ring 35, the threaded rod 34 will move. When the threaded rod 34 moves, it will drive the positioning rod 36 to move. Furthermore, one end of the positioning rod 36 will contact the winding wheel 9, and the position of the winding wheel 9 will be positioned to prevent the winding wheel 9 from rotating. Furthermore, by positioning the position of the winding wheel 9, the position of the pressing block 7 can be positioned.

[0048] Working principle: After the surgical treatment of the patient's eye, the surgical wound usually needs to be sutured and healed. Absorbable sutures are usually used. The absorbable sutures will be naturally absorbed by the body after healing. When the sutures are used to suture the wound, a suture hook for external eye surgery is used to ensure the more accurate and effective application of the surgical sutures in external eye surgery. When the surgical sutures are hooked to suture the wound, the winding wheel 9 is rotated. The cooperation of the circular groove 10 and the rotating shaft 11 will make the winding wheel 9 rotate smoothly. When the winding wheel 9 rotates, the traction rope 13 will be wound, and then the traction rope 13 will move, driving the connecting block 15 to move. The cooperation of the guide rod 16 and the through hole 19 will make the connecting block 15 move smoothly. The movement of the connecting block 15 will drive the driving plate 18 to move. The driving plate 18 will drive the pressing block 7 to move. When the winding wheel 9 moves in the reverse direction and no longer winds the traction rope 13, the return spring 17 resets and pushes the connecting block 15 to move. The reset of the connecting block 15 will drive the driving plate 18 to move synchronously. When the driving plate 18 moves, it will drive the square block 37 to move. When the square block 37 moves, it will drive the pressing block 7 to move synchronously, and at the same time drive the slot 20 to move synchronously. After the slot 20 moves and sleeves on the support block 29, when the suture is limited and clamped, the pressing block 7 is driven to move synchronously to limit and clamp the suture, improving the stability of the surgical suture, avoiding the accidental dropping of the surgical suture, improving the work efficiency, and at the same time making the negative pressure hole 30 located directly below the suture. When the driving plate 18 moves, the piston block 24 is driven to move through the driving mechanism. When the piston block 24 moves, the air inside the negative pressure hole 30 is extracted through the cooperation of the negative pressure groove 22 and the connecting pipe 23, and then the negative pressure hole 30 generates suction to limit the hooked surgical suture. When the negative pressure hole 30 generates negative pressure, it will limit and adsorb the suture above, further improving the stability of the suture limit, facilitating the limitation of the suture, and suturing the external eye postoperative wound, which can further improve the stability of the position of the surgical suture. Grooves are provided on both the pressing block 7 and the limiting block 4, and the suture can also be hooked separately. When the position of the pressing block 7 needs to be limited, the knob 33 is rotated, driving the drive shaft 32 to rotate inside the cylinder 31. When the drive shaft 32 rotates, it drives the threaded rod 34 to rotate. Through the cooperation of the threaded ring 35, the threaded rod 34 moves. When the threaded rod 34 moves, it drives the positioning rod 36 to move, and one end of the positioning rod 36 contacts the winding wheel 9, positioning the position of the winding wheel 9, preventing the winding wheel 9 from rotating, and thus positioning the position of the pressing block 7 by positioning the position of the winding wheel 9.

[0049] The foregoing has shown and described 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 by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A thread hook for external eye surgery, characterized in that: The invention comprises a handle (1), a support plate (3) is fixedly mounted on the handle (1), a connector (5) is fixedly mounted on one end of the support plate (3), a limit block (4) is fixedly mounted on the connector (5), a slide groove (6) is arranged inside the connector (5), a pressure block (7) is arranged on the connector (5), and the pressure block (7) is located on one side of the limit block (4), a through groove (12) is arranged inside the support plate (3), and the through groove (12) is connected to the slide groove (6), a movable groove (8) is arranged inside the handle (1), and circular grooves (10) are symmetrically arranged inside the handle (1), and the circular grooves (10) are symmetrically arranged inside the handle (1), and the circular grooves (10) are symmetrically arranged inside the handle (1). 0) is connected to the movable groove (8), a rotating shaft (11) is arranged inside the circular groove (10), a winding wheel (9) is arranged inside the movable groove (8), and one end of the rotating shaft (11) is fixedly connected to the center position of the winding wheel (9), a through groove (12) is connected to the movable groove (8), a traction rope (13) is fixedly connected to the winding wheel (9), and one end of the traction rope (13) extends to the inside of the through groove (12), a square groove (14) is arranged inside the support plate (3), a transmission assembly is arranged inside the square groove (14), a negative pressure assembly is arranged inside the support plate (3), and a positioning assembly is arranged inside the handle (1).

2. The thread hook for external eye surgery according to claim 1, characterized in that: The handle (1) is symmetrically mounted with an arc-shaped plate (2), which is made of rubber and has a semicircular shape.

3. The thread hook for external eye surgery according to claim 2, characterized in that: The transmission assembly comprises a connecting block (15), a guide rod (16), a return spring (17) and a through hole (19); the connecting block (15) is arranged inside the square groove (14), and the square groove (14) is connected to the through groove (12); the guide rod (16) is fixedly installed inside the square groove (14); the return spring (17) is arranged around the guide rod (16); the through hole (19) is symmetrically arranged on the connecting block (15), and the guide rod (16) passes through the corresponding through hole (19); a driving plate (18) is fixedly installed on the connecting block (15), and one end of the driving plate (18) extends to the inside of the slide groove (6); a connecting mechanism is arranged on the driving plate (18); a sealing ring (38) is fixedly installed inside the slide groove (6), and the driving plate (18) passes through the sealing ring (38).

4. The thread hook for external eye surgery according to claim 3, characterized in that: The connecting mechanism comprises a square block (37) and a slot (20); the square block (37) is fixedly mounted on the top of the driving plate (18), and the top of the square block (37) is fixedly connected to the pressure block (7); and the slot (20) is arranged inside the square block (37).

5. The thread hook for external eye surgery according to claim 4, characterized in that: The negative pressure assembly comprises a strip groove (21), a negative pressure groove (22), a connecting pipe (23), a piston block (24) and a driving assembly, wherein the strip groove (21) is symmetrically arranged inside the support plate (3), and the strip groove (21) is connected to the through groove (12), the negative pressure groove (22) is fixedly installed inside the strip groove (21), the connecting pipe (23) is fixedly installed on the negative pressure groove (22), the piston block (24) is arranged inside the negative pressure groove (22), the driving assembly is arranged inside the strip groove (21), and the driving plate (18) is connected to the piston block (24) through the driving assembly.

6. The thread hook for external eye surgery according to claim 5, characterized in that: The driving assembly comprises a driving rod (25), a driving block (26) and a fixing ring (27); one end of the driving rod (25) is fixedly connected to the center position of the piston block (24); the driving block (26) is fixedly connected to one end of the driving rod (25); the fixing ring (27) is fixedly mounted on the driving plate (18); the driving block (26) is fixedly connected to the fixing ring (27); a limiting ring (28) is fixedly arranged inside the strip groove (21); and the driving rod (25) passes through the limiting ring (28).

7. The thread hook for external eye surgery according to claim 6, characterized in that: A support block (29) is fixedly installed inside the slide groove (6), a negative pressure hole (30) is embedded inside the support block (29), and the negative pressure hole (30) is connected to the connecting pipe (23).

8. The thread hook device for external eye surgery according to claim 7, characterized in that: The outer wall size of the support block (29) matches the inner wall size of the slot (20).

9. The thread hook for external eye surgery according to claim 1, characterized in that: The positioning assembly comprises a cylinder (31), a driving mechanism, a threaded rod (34), a threaded ring (35) and a positioning rod (36); the threaded ring (35) is fixedly installed inside the handle (1); the cylinder (31) is arranged inside the handle (1), and the cylinder (31) is connected to the movable groove (8); the inner ring of the threaded ring (35) is connected to the inside of the cylinder (31); the threaded rod (34) is threadedly connected to the threaded ring (35); one end of the positioning rod (36) is fixedly connected to the threaded rod (34); and the driving mechanism is arranged inside the cylinder (31).

10. The thread hook for external eye surgery according to claim 9, characterized in that: The driving mechanism comprises a driving shaft (32) and a knob (33); the driving shaft (32) is inserted into the cylinder (31), one end of the driving shaft (32) is fixedly connected to a threaded rod (34), and the center position of the knob (33) is fixedly connected to one end of the threaded rod (34).

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