An endoscope-assisted annulus fibrosus suture device

Abstract

The application discloses a fiber ring suture device under a spinal endoscope, and relates to the technical field of fiber ring suture device equipment, and proposes the following scheme, which comprises a suture device mechanism, the front end of the suture device mechanism is connected with a suture device tip in a flexible manner, a needle tube turning mechanism is arranged at the rear end of the suture device tip, a suture thread anti-falling sleeve is arranged in the front end of the suture device tip, the suture device mechanism comprises a suture device handle, a wire outlet needle tube and a wire return needle tube are fixedly connected to the front end face of the suture device handle, and the wire outlet needle tube is located above the wire return needle tube. The suture thread clamping structure is arranged on the straight needle of the suture device, so that the suture thread extending from the bent needle head end to the straight needle can be prevented from falling off, secondary threading can be prevented, and the difficulty of suture operation is reduced. The straight needle and the bent needle part of the fiber ring suture device are arranged to be movable, and a connecting mechanism for adjusting the bending angles of the straight needle and the bent needle is connected between the straight needle and the bent needle and the suture device.

Description

Technical Field

[0001] This invention relates to the field of annulus fibrosus suture device technology, and more specifically to an endoscopic annulus fibrosus suture device for spinal spine. Background Technology

[0002] In the spinal structure, the annulus fibrosus is a crucial component of the intervertebral disc, surrounding the nucleus pulposus and playing a vital role in stabilizing the spine and cushioning pressure. However, due to factors such as aging, trauma, or poor posture, the annulus fibrosus may be damaged or ruptured, leading to herniation of the nucleus pulposus, which can compress nerve roots or the spinal cord, causing pain, numbness, and even functional impairment. Suturing the annulus fibrosus is a challenging step in minimally invasive spinal surgery. Due to the limited surgical space, manual suturing is difficult, and ensuring the precision and stability of the sutures is challenging. Against this backdrop, the annulus fibrosus suture device was developed.

[0003] However, existing annulus fibrosus suture devices are relatively difficult to operate and the suturing process is relatively time-consuming, which affects the patient's physical tolerance and surgical risks, reducing surgical efficiency. The structure and design of existing annulus fibrosus suture devices may not be flexible enough to accommodate annulus fibrosus tears at different angles and locations during spinal endoscopy. Therefore, those skilled in the art have proposed a spinal endoscopic annulus fibrosus suture device to address the aforementioned shortcomings. Summary of the Invention

[0004] In view of the deficiencies mentioned above in the background art, a technical solution for a spinal endoscopic annulus fibrosus suture device is provided.

[0005] It includes a suture mechanism, the front end of which is softly connected to a suture tip, the rear end of which is provided with a needle tube turning mechanism, and the front end of which is provided with a suture anti-loosening sleeve.

[0006] The suture mechanism includes a suture handle, a thread outlet needle tube and a return needle tube fixedly connected to the front end face of the suture handle, and the thread outlet needle tube is located above the return needle tube.

[0007] The tip of the suture device includes a curved needle and a pointer, wherein the rear ends of the curved needle and the pointer are fixed with corrugated tubes, the rear ends of the corrugated tubes are respectively connected to the front ends of the thread outlet tube and the thread return tube, the rear side of the outer ring of the curved needle and the pointer is fixed with a front sleeve, and the front side of the outer ring of the thread outlet tube and the thread return tube is fixed with a rear sleeve.

[0008] The suture anti-loosening sleeve includes a tapered tube embedded and fixed in the front end port of the pointer, six sets of silicone pillars fixed in a ring array on the inner wall of the tapered tube, and a C-shaped rubber sheet fixedly connected to the inner end of the silicone pillar. A wedge-shaped block with a thinner top and a thicker bottom is fixed on the outer side wall of the C-shaped rubber sheet. A metal movable ring is fitted on the outer ring of the wedge-shaped block. An electromagnet that is attracted to the metal movable ring is fixed in the bottom space of the inner cavity of the tapered tube.

[0009] The needle tube steering mechanism includes a front U-shaped seat at the front end and a rear U-shaped seat at the rear end. A front connecting column is fixed to the front end of the front U-shaped seat, and a rear connecting column is fixed to the rear end of the rear U-shaped seat. A cross shaft is rotatably arranged between the front U-shaped seat and the rear U-shaped seat. Miniature electric actuators are fixedly connected to the end faces of the front U-shaped seat and the rear U-shaped seat that are close to each other.

[0010] In the above-mentioned technical solution of a spinal endoscopic annulus fibrosus suture device, preferably: a trigger is provided on the front side of the suture device handle to control the suture to be ejected from the inside of the suture needle tube.

[0011] In the above-mentioned technical solution of a spinal endoscopic annulus fibrosus suture device, preferably: the front end of the curved needle has a downward curved arc, and the front end of the pointer has a slit for receiving the suture that comes out from inside the curved needle.

[0012] In the above-mentioned technical solution of the spinal endoscopic annulus fibrosus suture device, preferably: the front end of the pointer is provided with an oblique hole, the inclination angle of the oblique hole is consistent with the inclination of the front end of the curved needle, and the outer ring surface of the tapered tube is fixedly connected to the inner wall of the oblique hole, and the bottom end face of the tapered tube is flush with the outer ring surface of the pointer.

[0013] In the above-mentioned technical solution of a spinal endoscopic annulus fibrosus suture device, preferably: a number of fixing blocks are fixed in a ring array on the inner wall of the conical tube, the outer ring surface of the electromagnet is fixedly connected to one end of the fixing blocks that are close to each other, and the adsorption end face of the electromagnet faces the metal movable ring.

[0014] In the above-mentioned technical solution of the spinal endoscopic annulus fibrosus suture device, preferably: the wedge blocks are all C-shaped with inward protrusion, and the surfaces of the wedge blocks that are close to each other are provided with transverse grooves for clamping the sutures inserted into the conical tube.

[0015] In the above-mentioned technical solution of the spinal endoscopic annulus fibrosus suture device, preferably: the upper and lower surfaces of the front end of the anterior connecting column are fixedly connected to the side walls of the anterior sleeve that are close to each other, and the upper and lower surfaces of the rear end of the posterior connecting column are fixedly connected to the side walls of the posterior sleeve that are close to each other.

[0016] In the above-mentioned technical solution of a spinal endoscopic annulus fibrosus suture device, preferably: the vertical cross-section of the anterior U-shaped seat is U-shaped, and the cross-section of the posterior U-shaped seat is U-shaped.

[0017] In the above-mentioned technical solution of the spinal endoscopic annulus fibrosus suture device, preferably: a pin is fixed to the upper and lower and left and right side walls of the cross shaft, and the pin passes through the four close ends of the front U-shaped seat and the rear U-shaped seat respectively.

[0018] In the above-mentioned technical solution of the spinal endoscopic annulus fibrosus suture device, preferably: the left and right side walls of the front U-shaped seat and the upper and lower side walls of the rear U-shaped seat are all fixed with support plates, the miniature electric actuator is fixed on the side walls of the support plates that are close to each other, and the telescopic end of the miniature electric actuator on the front U-shaped seat is hinged to the front end of the rear U-shaped seat, and the telescopic end of the miniature electric actuator on the rear U-shaped seat is hinged to the rear end of the front U-shaped seat.

[0019] As can be seen from the above technical solution, the spinal endoscopic annulus fibrosus suture device provided by the present invention has the following beneficial effects compared with the prior art:

[0020] This invention incorporates a suture clamping structure on the straight needle of the suture device to prevent the suture extending from the curved needle tip into the straight needle from coming loose, thus preventing secondary threading and reducing the difficulty of the suturing operation. The straight and curved needle sections of the loop suture device are designed to be movable, and a connecting mechanism for adjusting the bending angle of the straight and curved needles is provided between them and the suture device. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments of the present invention or the prior art will be briefly introduced and explained below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the overall structure of the circumferential suture device;

[0023] Figure 2 This is a schematic diagram of the internal structure of a circumferential suture device.

[0024] Figure 3 A schematic diagram of the tip of the suture device;

[0025] Figure 4 This is a partial exploded view of the tip of the suture tool;

[0026] Figure 5 A schematic diagram of a suture anti-loosening sleeve;

[0027] Figure 6 This is a schematic diagram of the needle deflection mechanism.

[0028] Appendix Figure 1 -Appendix Figure 6 The correspondence between the components is as follows:

[0029] 1. Stitching mechanism; 11. Stitching handle; 12. Outlet needle tube; 13. Return needle tube;

[0030] 2. Suture tip; 21. Curved needle; 22. Pointer; 23. Rear cannula; 24. Corrugated tube; 25. Front cannula;

[0031] 3. Thread anti-loosening sleeve; 31. Tapered tube; 32. Electromagnet; 33. C-shaped rubber sheet; 34. Silicone column; 35. Wedge block; 36. Fixing block; 37. Metal movable ring;

[0032] 4. Needle tube steering mechanism; 41. Front U-shaped seat; 42. Rear U-shaped seat; 43. Rear connecting column; 44. Cross shaft; 45. Miniature electric actuator; 46. Support plate; 47. Front connecting column. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] To provide a clearer explanation and illustration of the technical solution and implementation of the present invention, the following describes preferred embodiments of the technical solution of the present invention.

[0035] Example 1: This spinal endoscopic annulus fibrosus suture device consists of a suture mechanism 1, a suture tip 2, a suture anti-dislodgement sleeve 3, and a needle tube steering mechanism 4. The suture handle 11 of the suture mechanism 1 features an ergonomic arc design for easy hand operation by the doctor. Its front end is fixedly connected to the exit needle tube 12 and the return needle tube 13, with the exit needle tube 12 positioned above the return needle tube 13. The front end of the curved needle 21 of the suture tip 2 has a downward-bent arc, and the front end of the pointer 22 has a slit to receive the suture exiting from inside the curved needle 21. Corrugated tubes 24 are fixed to the rear ends of both the curved needle 21 and the pointer 22. The rear ends of the corrugated tubes 24 are connected to the front ends of the exit needle tube 12 and the return needle tube 13, respectively. A front sleeve 25 is fixed to the rear outer ring of the curved needle 21 and the pointer 22, and a rear sleeve 23 is fixed to the front outer ring of the exit needle tube 12 and the return needle tube 13.

[0036] In the suture anti-loosening sleeve 3, a tapered tube 31 is embedded and fixed at the front end of the pointer 22. Six sets of silicone pillars 34 are fixed in a ring array on the inner wall of the tapered tube 31. A C-shaped rubber sheet 33 is fixed to the inner end of the silicone pillar 34. A wedge-shaped block 35, thinner at the top and thicker at the bottom, is fixed to the outer wall of the C-shaped rubber sheet 33. A metal movable ring 37 is fitted around the outer ring of the wedge block 35. An electromagnet 32, attracted to the metal movable ring 37, is fixed in the bottom space of the inner cavity of the tapered tube 31. An oblique hole is opened inside the front end of the pointer 22. The angle of the bevel is consistent with the inclination of the cut at the front end of the bent needle 21. The outer surface of the tapered tube 31 is fixedly connected to the inner wall of the oblique hole. The bottom end face of the tapered tube 31 is flush with the outer surface of the pointer 22. The wedge block 35 is C-shaped with an inward protrusion and close to each other. A transverse groove is provided on one side surface for clamping the suture. Several fixing blocks 36 are fixed in a ring array on the inner wall of the tapered tube 31. The outer surface of the electromagnet 32 ​​is fixedly connected to the fixing block 36 at one end. The adsorption end face faces the metal movable ring 37.

[0037] The needle tube turning mechanism 4 has a U-shaped vertical cross-section for its front U-shaped seat 41 and a U-shaped cross-section for its rear U-shaped seat 42. A front connecting post 47 is fixed to the front end of the front U-shaped seat 41, and a rear connecting post 43 is fixed to the rear end of the rear U-shaped seat 42. The upper and lower surfaces of the front end of the front connecting post 47 are fixedly connected to the front sleeve 25 near their respective side walls. The upper and lower surfaces of the rear end of the rear connecting post 43 are fixedly connected to the rear sleeve 23 near their respective side walls. A cross shaft 44 is rotatably mounted between the front U-shaped seat 41 and the rear U-shaped seat 42. The cross shaft 44 rotates vertically... A pin is fixed to each of the left and right side walls. The pins pass through the four close ends of the front U-shaped seat 41 and the rear U-shaped seat 42. Support plates 46 are fixed to the left and right side walls of the front U-shaped seat 41 and the upper and lower side walls of the rear U-shaped seat 42. Miniature electric actuators 45 are fixed to the close side walls of the support plates 46. The telescopic end of the miniature electric actuator 45 on the front U-shaped seat 41 is hinged to the front end of the rear U-shaped seat 42, and the telescopic end of the miniature electric actuator 45 on the rear U-shaped seat 42 is hinged to the rear end of the front U-shaped seat 41. A trigger is set on the front side of the suture handle 11 to control the suture to be ejected from the inside of the suture tube 12. The doctor controls the suture to be ejected by operating the trigger and uses the curved needle 21 and the pointer 22 to perform the suturing operation. When it is necessary to adjust the direction of the needle tube, the micro electric push rod 45 extends and retracts to drive the front U-shaped seat 41 and the rear U-shaped seat 42 to rotate relative to each other, so as to realize the needle tube turning. When the suture passes through the tapered tube 31, the electromagnet 32 ​​is energized to attract the metal movable ring 37, and the wedge block 35 clamps the suture under the action of the C-shaped rubber sheet 33 to prevent it from falling off.

[0038] Example 2: Based on Example 1, the structure of the suture tip 2 is further optimized. The curved needle 21 and pointer 22 are made of high-strength, high-toughness medical-grade stainless steel to improve their durability and puncture performance. The corrugated tube 24 is made of medical-grade silicone with good flexibility and elasticity, ensuring a soft connection between the curved needle 21 and pointer 22 and the exit needle tube 12 and return needle tube 13, while also accommodating certain bending and twisting movements. The anterior cannula 25 and the posterior cannula 23 are made of medical-grade plastic with a smooth surface to reduce friction with surrounding tissues.

[0039] In the suture anti-loosening sleeve 3, the inner wall of the tapered tube 31 is polished to reduce resistance when the suture passes through. The silicone pillar 34 has moderate hardness, providing sufficient support without excessively compressing the suture. The elasticity of the C-shaped rubber sheet 33 is precisely adjusted to ensure that the wedge block 35 can tightly clamp the suture when the electromagnet 32 ​​attracts the metal movable ring 37, and that the wedge block 35 can quickly release the suture when the electromagnet 32 ​​is de-energized.

[0040] The cross shaft 44 of the needle tube steering mechanism 4 is made of high-strength alloy steel to ensure its rotational accuracy and stability. The stroke and thrust of the miniature electric actuator 45 are precisely designed according to actual needs to ensure accurate control of the relative rotation angle between the front U-shaped seat 41 and the rear U-shaped seat 42. In actual surgery, the doctor precisely controls the length and speed of the suture exiting from the needle tube 12 by operating the trigger on the suture handle 11. Using the cooperation of the curved needle 21 and the pointer 22, the suture is accurately passed through the annulus fibrosus tissue. When it is necessary to adjust the suture direction, the miniature electric actuator 45 drives the needle tube steering mechanism 4 to quickly and accurately adjust the curved needle 21 and the pointer 22 to the required angle. The suture anti-dislodgement sleeve 3 effectively prevents the suture from falling off during the suture passage process, improving the accuracy and reliability of suturing.

[0041] Example 3: Based on Examples 1 and 2, some auxiliary functions are added. A display screen is installed on the suture handle 11 to display parameters such as suture extension length, needle rotation angle, and the energization status of the electromagnet 32, allowing doctors to monitor the suture's working status in real time. Simultaneously, a sensor is installed inside the suture mechanism 1 to detect suture tension and position. When suture tension is too high or position is abnormal, the sensor transmits a signal to the control system, which then issues an alarm to alert the doctor.

[0042] A temperature sensor is added to the suture anti-loosening sleeve 3 to monitor the temperature inside the conical tube 31 in real time, preventing damage to the suture caused by excessive temperature due to prolonged energization of the electromagnet 32. An angle limiting device is installed in the needle tube steering mechanism 4 to limit the relative rotation angle between the front U-shaped seat 41 and the rear U-shaped seat 42, preventing excessive rotation from damaging the miniature electric push rod 45 and the cross shaft 44. In actual surgery, the doctor can monitor the operating parameters of the suture device in real time via the display screen and adjust the operation promptly based on sensor feedback to ensure the safety and smoothness of the suturing process. For example, when the display screen indicates excessive suture tension, the doctor can appropriately adjust the suture ejection speed or the direction of the needle tube; when the temperature sensor detects excessively high internal temperature of the conical tube 31, the control system automatically cuts off the power to the electromagnet 32, and resumes operation only after the temperature returns to normal. These auxiliary functions further improve the intelligence and safety of the spinal endoscopic annulus fibrosus suture device.

[0043] Based on the above-described preferred technical solution, the workflow of the technical solution is explained as follows: Before use, the suture device has been correctly assembled, all components are securely connected, and the suture anti-loosening sleeve 3 is confirmed to be in normal working condition, that is, the electromagnet 32 ​​is in the closed state, the metal movable ring 37 is not attracted, and the C-shaped rubber sheet 33 and the wedge block 35 are in the naturally open state so that the suture can pass through smoothly.

[0044] The operator holds the suture handle 11 and inserts the suture tip 2, i.e., the curved needle 21 and the pointer 22, into the surgical site through the working channel of the spinal endoscope, positioning it at the location of the annulus fibrosus to be sutured. When it is time to eject the suture, the operator pulls the trigger on the front side of the suture handle 11. After the trigger is pulled, the suture ejection mechanism inside the suture is activated, pushing the suture out from inside the suture tube 12. The ejected suture moves forward along the suture tube 12, passes through the incision at the tip of the curved needle 21, and enters the oblique hole inside the tip of the pointer 22.

[0045] Once the suture enters the tapered tube 31, it will be positioned between the C-shaped rubber sheet 33 and the wedge block 35. At this point, the electromagnet 32 ​​can be activated, generating a magnetic field that attracts the metal movable ring 37. Once attracted, the metal movable ring 37 moves towards the electromagnet 32, causing the C-shaped rubber sheet 33 and the wedge block 35 to tighten inwards, firmly clamping the suture in the transverse groove of the wedge block 35 and preventing it from slipping out of the tapered tube 31.

[0046] During the suturing process, the bending angles of the looper 21 and pointer 22 may need to be adjusted according to the actual condition of the annulus fibrosus for better suturing. By controlling the extension and retraction of the micro electric actuator 45, the front U-shaped seat 41 and the rear U-shaped seat 42 can be rotated relative to each other. Specifically, when the micro electric actuator 45 on the front U-shaped seat 41 extends, it pushes the rear U-shaped seat 42 to rotate forward; when the micro electric actuator 45 on the rear U-shaped seat 42 extends, it pushes the front U-shaped seat 41 to rotate backward. Through this relative rotation, the bending angles of the looper 21 and pointer 22 can be changed to adapt to different suturing needs.

[0047] After adjusting the suturing angle, the operator can move the suture device so that the curved needle 21 and pointer 22 pass through the area to be sutured in the annulus fibrosus. Once the suture has passed through the annulus fibrosus, the electromagnet 32 ​​can be deactivated, causing the metal movable ring 37 to lose its magnetic force. The C-shaped rubber sheet 33 and wedge block 35 return to their original shape under the elastic action of the silicone pillar 34, releasing the clamp on the suture. At this point, the return needle tube 13 can be pulled to pull the suture out of the pointer 22, completing one suture. If necessary, the above steps can be repeated multiple times until the annulus fibrosus is completely sutured.

[0048] This invention is not limited to the preferred embodiments described above. Anyone should understand that structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention. Finally, it should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of this application, should still fall within the scope of the technical content disclosed in this application.

Claims

1. A spinal endoscopic annulus fibrosus suture device, comprising a suture device mechanism (1), characterized in that: The front end of the suture mechanism (1) is softly connected to a suture tip (2), and a needle tube turning mechanism (4) is provided at the rear end of the suture tip (2). A suture anti-loosening sleeve (3) is provided inside the front end of the suture tip (2). The suture mechanism (1) includes a suture handle (11), a thread outlet needle tube (12) and a return needle tube (13) fixedly connected to the front end face of the suture handle (11), and the thread outlet needle tube (12) is located above the return needle tube (13). The tip (2) of the suture device includes a curved needle (21) and a pointer (22). The rear ends of the curved needle (21) and the pointer (22) are both fixed with a bellows (24). The rear ends of the bellows (24) are connected to the front ends of the thread outlet needle tube (12) and the thread return needle tube (13), respectively. The rear side of the outer ring of the curved needle (21) and the pointer (22) is fixed with a front sleeve (25). The front side of the outer ring of the thread outlet needle tube (12) and the thread return needle tube (13) is fixed with a rear sleeve (23). The front end of the curved needle (21) has a downward curved arc, and the front end of the pointer (22) has a cut to receive the thread that comes out from inside the curved needle (21). The suture anti-loosening sleeve (3) includes a tapered tube (31) embedded and fixed in the front end port of the pointer (22), and six sets of silicone pillars (34) fixed in a ring array on the inner wall of the tapered tube (31). The inner end of the silicone pillar (34) is fixedly connected to a C-shaped rubber sheet (33). The outer side wall of the C-shaped rubber sheet (33) is fixed with a wedge-shaped block (35) that is thin at the top and thick at the bottom. A metal movable ring (37) is sleeved on the outer ring of the wedge-shaped block (35). An electromagnet (32) that is attracted to the metal movable ring (37) is fixed in the bottom space of the inner cavity of the tapered tube (31). The pointer (22) has an oblique hole inside its front end. The inclination angle of the oblique hole is consistent with the inclination of the cut at the front end of the bent needle (21). The outer ring surface of the tapered tube (31) is fixedly connected to the inner wall of the oblique hole. The bottom end face of the tapered tube (31) is flush with the outer ring surface of the pointer (22). The needle steering mechanism (4) includes a front U-shaped seat (41) at the front end and a rear U-shaped seat (42) at the rear end. A front connecting column (47) is fixed to the front end of the front U-shaped seat (41), and a rear connecting column (43) is fixed to the rear end of the rear U-shaped seat (42). A cross shaft (44) is rotatably arranged between the front U-shaped seat (41) and the rear U-shaped seat (42). Miniature electric actuators (45) are fixedly connected to the end faces of the front U-shaped seat (41) and the rear U-shaped seat (42) that are close to each other. The wedges (35) are all C-shaped and protrude inwards. The surfaces of the wedges (35) that are close to each other are provided with transverse grooves for clamping the sutures that are inserted into the conical tube (31).

2. The endoscopic annulus fibrosus suture device for spinal cord injury according to claim 1, characterized in that: The front side of the suture handle (11) is provided with a trigger to control the suture to be ejected from inside the needle tube (12).

3. The endoscopic annulus fibrosus suture device for the spine according to claim 1, characterized in that: The inner wall of the tapered tube (31) is fixed with a number of fixed blocks (36) arranged in a ring. The outer surface of the electromagnet (32) is fixedly connected to one end of the fixed blocks (36) that are close to each other. The adsorption end face of the electromagnet (32) faces the metal movable ring (37).

4. The endoscopic annulus fibrosus suture device for the spine according to claim 1, characterized in that: The front end upper and lower surfaces of the front connecting column (47) and the side wall of the front sleeve (25) are fixedly connected to each other, and the rear end upper and lower surfaces of the rear connecting column (43) and the side wall of the rear sleeve (23) are fixedly connected to each other.

5. The endoscopic annulus fibrosus suture device for spinal cord injury according to claim 1, characterized in that: The front U-shaped seat (41) has a U-shaped vertical cross section, and the rear U-shaped seat (42) has a U-shaped cross section.

6. The endoscopic annulus fibrosus suture device for spinal cord injury according to claim 1, characterized in that: The cross shaft (44) is fixed with a pin on its upper and lower sides and left and right side walls, and the pin passes through the four close ends of the front U-shaped seat (41) and the rear U-shaped seat (42).

7. The spinal endoscopic annulus fibrosus suture device according to claim 1, characterized in that: Support plates (46) are fixed on the left and right side walls of the front U-shaped seat (41) and the upper and lower side walls of the rear U-shaped seat (42). The miniature electric actuator (45) is fixed on the side walls of the support plates (46) that are close to each other. The telescopic end of the miniature electric actuator (45) on the front U-shaped seat (41) is hinged to the front end of the rear U-shaped seat (42), and the telescopic end of the miniature electric actuator (45) on the rear U-shaped seat (42) is hinged to the rear end of the front U-shaped seat (41).

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