Lumbar intervertebral disc fibrous ring stitching instrument

Abstract

The invention discloses a lumbar intervertebral disc fibrous ring stitching instrument, and relates to the technical field of lumbar intervertebral disc fibrous ring stitching. Comprising a first sleeve, the bottom of the first sleeve is rotatably connected with a second sleeve, a guide wire slides in the first sleeve in a limited mode, a suture rod is installed at the end of the guide wire, a puncture table is installed at the end of the suture rod through a puncture adjusting assembly, and an electric push rod is installed on the surface of the inner wall of the bottom end of the first sleeve. According to the device, through the arrangement of the puncture table, the auxiliary table, the abutting plate and the puncture adjusting assembly, a suture line can be clamped in the puncture process of the puncture table, and in the puncture process, the resistance of the puncture table may cause the suture line to fall off from a threading hole in the puncture table. The suture line is fixed through the clamping device, it can be ensured that the position of the suture line is stable, displacement caused by external force is avoided, the stable position of the suture line is beneficial for forming a firm line knot, and the risk of suture failure caused by loosening of the line knot after an operation is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of lumbar intervertebral disc annulus suturing, in particular to a lumbar intervertebral disc annulus suturing device. Background Art

[0002] Lumbar disc herniation is extremely common in the field of orthopedics and is a chronic condition that plagues many patients. Its root cause lies in the degeneration of the annulus fibrosus and nucleus pulposus of the intervertebral disc, which causes the annulus fibrosus to degenerate, thin, and become increasingly brittle. Under external pressure, the nucleus pulposus protrudes and compresses the nerve roots, leading to a series of neurological symptoms such as low back pain, leg pain, and sensory impairment. While traditional nucleus pulposus removal can relieve the pressure of the nucleus pulposus on the nerve roots, the rupture left in the annulus fibrosus is difficult to repair, making the remaining nucleus pulposus in the intervertebral disc highly susceptible to re-herniation, compressing the nerve roots and causing symptom recurrence. According to international statistics, the recurrence rate averages 10-15%. With the advancement of medical technology and the increasing demand for quality of life from patients, the development of a medical device that can effectively suture the rupture in the annulus fibrosus and reduce the recurrence rate is urgent. Lumbar disc annulus suture device has emerged as a result.

[0003] When suturing with existing suture devices, the puncture force of the suture device will change due to the different sizes of the annulus fibrosus. The change in the puncture force of the suture device is not convenient for controlling the suture depth, and it is easy to cause the suture to loosen. After the disc nucleus pulposus removal surgery, if the annulus fibrosus rupture is not sutured firmly, the residual nucleus pulposus may protrude again and compress the nerve root, causing the patient's symptoms to relapse. In addition, the existing suture device is not convenient for adjusting the puncture angle of the annulus fibrosus. The annulus fibrosus rupture is usually irregular in shape. The suture device with a fixed angle is not conducive to achieving precise alignment of the rupture edge, which may cause uneven suture tension and affect the healing quality.

[0004] In response to the above problems, it is urgent to carry out innovative design based on the original foundation. Summary of the Invention

[0005] The purpose of the present invention is to provide a lumbar disc annulus fibrosus suture device to solve the above-mentioned background technology. Due to the different sizes of the annulus fibrosus, the puncture force of the suture device will change, and the change of the puncture force of the suture device is not convenient for controlling the suturing depth, and the existing suture device is not convenient for adjusting the puncture angle of the annulus fibrosus. The technical solution of the present invention addresses the technical problem that the existing technical solution is too single and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a lumbar intervertebral disc annulus suture device, comprising a first sleeve, a second sleeve rotatably connected to the bottom of the first sleeve, a guide wire slidingly limited inside the first sleeve, a suturing rod installed at the end of the guide wire, a puncture table installed at the end of the suturing rod through a puncture adjustment assembly, an electric push rod installed on the inner wall surface of the bottom end of the first sleeve, an angle adjustment assembly provided in the gap between the first sleeve and the second sleeve, a fixing ring installed on the inner wall of the first sleeve, a connecting table slidingly limited inside the first sleeve, a pressure plate installed at the bottom of the connecting table, and a push rod inserted into the connecting table;

[0007] The angle adjustment assembly includes a connecting rod rotatably connected to the surface of the rotating shaft of the second sleeve, one end of the connecting rod is rotatably connected to the first connecting block, the other end of the connecting rod is rotatably connected to the second connecting block, the extended end of the electric push rod is connected to the bottom of the second connecting block, and also includes a first oil tank installed on the inner wall of the first sleeve, a first piston rod is limited and slidably inside the first oil tank, a second oil tank is installed at the bottom of the pressure plate, and a second piston rod is limited and slidably inside the second oil tank.

[0008] Preferably, a corrugated elbow is installed in the gap between the first sleeve and the second sleeve, an auxiliary platform is installed on the side of the puncture table, a contact plate is installed at the end of the puncture table, a threading hole is opened on the surface of the puncture table, the contact plate slides within the internal cavity of the puncture table, and a pressure sensor is installed on the surface of the contact plate.

[0009] Preferably, the auxiliary tables are in two groups, and the two groups of auxiliary tables are symmetrically distributed on the side of the puncture table.

[0010] Preferably, the puncture adjustment assembly includes an auxiliary rod rotatably connected to the inside of the auxiliary platform, a gear is installed on the side end of the auxiliary rod, and also includes a toothed plate that slides within the auxiliary platform, and a support rod installed on the surface of the contact plate.

[0011] Preferably, a spring is installed on the surface of the contact plate, the other end of the spring is connected to the inner wall of the cavity inside the puncture table, the side end of the support rod slides within the internal notch of the auxiliary table, and the side end of the support rod is connected to the tooth plate.

[0012] Preferably, a spring is installed at the top of the fixing ring, and the other end of the spring is connected to the bottom of the connecting platform. There are four groups of springs, and the four groups of springs are distributed in a circular shape on the surface of the fixing ring.

[0013] Preferably, outer surfaces of the first connecting block and the second connecting block are arc-shaped, and the first connecting block and the second connecting block are distributed opposite to each other inside the first sleeve and the second sleeve.

[0014] Preferably, the outer surface of the first connecting block is fixedly connected to the inner wall of the top end of the second sleeve, a sliding groove is provided at the top end of the second connecting block, the bottom end of the first piston rod slides in the sliding groove at the top end of the second connecting block, and a hose is connected between the first oil tank and the second oil tank.

[0015] Preferably, a square groove is provided inside the connecting platform, an insert block is installed at the bottom of the pushing rod, the size of the insert block is adapted to the square groove, a chamfer is provided at the bottom of the insert block, and an electromagnet is installed in the insert block.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention, through the provision of the puncture table, the auxiliary table, the resistance plate and the puncture adjustment assembly, can clamp the suture during the puncture process on the puncture table. During the puncture process, the resistance of the puncture table may cause the suture to fall out of the threading hole inside the puncture table. The suture is fixed by the clamping device to ensure its position is stable and avoid displacement due to external forces. The stable suture position helps to form a firm knot, reducing the risk of suture failure due to loose knot after surgery.

[0018] 2. The present invention, through the provision of a pressure sensor and an angle adjustment assembly, can adjust the angle between the first sleeve and the second sleeve according to the puncture force of the puncture table, and thus can adjust the puncture angle of the annulus fibrosus. The hierarchical structure of the annulus fibrosus can be judged by pressure changes, and the angle can be automatically fine-tuned to match the puncture requirements of different tissues. When the pressure exceeds the safety threshold, the angle will be automatically reduced to reduce the puncture force and prevent the annulus fibrosus from tearing or nerve damage.

[0019] 3. The present invention adjusts the puncture depth of the puncture platform by changing the angle between the first and second sleeves. The thickness of the annulus fibrosus varies in different parts and its relationship with the surrounding tissues. During surgery, the suturing depth needs to be precisely controlled according to the specific situation. By adjusting the puncture depth by changing the angle of the puncture needle, the doctor can more accurately deliver the suture needle to the ideal depth, ensuring that the suture is positioned precisely within the annulus fibrosus. This can effectively repair the annulus fibrosus rupture without damaging the nucleus pulposus or other important structures inside the annulus fibrosus due to excessive puncture depth, or causing a weak suture due to excessive shallow puncture. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A structural diagram of the present invention from one perspective;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0022] Figure 3 For the present invention Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 4 For the present invention Figure 2 Schematic diagram of the enlarged structure at B in the middle;

[0024] Figure 5 It is a schematic diagram of the explosion structure of the present invention;

[0025] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at C in the middle;

[0026] Figure 7 Schematic diagram of the exploded structure of the guide wire and the push rod of the present invention;

[0027] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure at D in the middle;

[0028] Figure 9 It is a partial structural diagram of the puncture table of the present invention;

[0029] Figure 10 This is a schematic diagram of the partial explosion structure of the puncture table of the present invention;

[0030] Figure 11 For the present invention Figure 10 Schematic diagram of the enlarged structure at E in the middle;

[0031] Figure 12 Schematic diagram of the cross-sectional structure of the puncture table of the present invention;

[0032] Figure 13 For the present invention Figure 12 Schematic diagram of the enlarged structure at F in the middle.

[0033] In the figure: 1. first sleeve; 2. second sleeve; 3. guide wire; 4. suturing rod; 5. puncture table; 6. auxiliary table; 7. contact plate; 8. pressure sensor; 901. auxiliary rod; 902. gear; 903. gear plate; 904. support rod; 10. electric push rod; 111. connecting rod; 112. first connecting block; 113. second connecting block; 114. first oil tank; 115. first piston rod; 116. second oil tank; 117. second piston rod; 12. fixing ring; 13. connecting table; 14. pressure plate; 15. push rod. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] See also Figures 1-13 The present invention provides a technical solution: a lumbar intervertebral disc fiber ring suture device, comprising a first sleeve 1, the bottom of the first sleeve 1 is rotatably connected to the second sleeve 2, a guide wire 3 is limited and slidably provided inside the first sleeve 1, a suturing rod 4 is installed at the end of the guide wire 3, a puncture platform 5 is installed at the end of the suturing rod 4 through a puncture adjustment component, an electric push rod 10 is installed on the inner wall surface of the bottom end of the first sleeve 1, an angle adjustment component is provided in the gap between the first sleeve 1 and the second sleeve 2, a fixing ring 12 is installed on the inner wall of the first sleeve 1, a connecting platform 13 is limited and slidably provided inside the first sleeve 1, a pressing plate 14 is installed at the bottom of the connecting platform 13, and a pushing rod 15 is inserted into the connecting platform 13;

[0036] The angle adjustment assembly includes a connecting rod 111 rotatably connected to the surface of the rotating shaft of the second sleeve 2, one end of the connecting rod 111 is rotatably connected to the first connecting block 112, and the other end of the connecting rod 111 is rotatably connected to the second connecting block 113, the protruding end of the electric push rod 10 is connected to the bottom of the second connecting block 113, and also includes a first oil tank 114 installed on the inner wall of the first sleeve 1, a first piston rod 115 is limited and slid inside the first oil tank 114, a second oil tank 116 is installed at the bottom of the pressure plate 14, and a second piston rod 117 is limited and slid inside the second oil tank 116; the angle adjustment assembly can adjust the angle between the first sleeve 1 and the second sleeve 2 according to the puncture force of the puncture table 5, and then can adjust the puncture angle of the fiber ring, judge the hierarchical structure of the fiber ring by pressure changes, and automatically fine-tune the angle to match the puncture requirements of different tissues.

[0037] As an embodiment of the present invention, a corrugated elbow is installed in the gap between the first sleeve 1 and the second sleeve 2, an auxiliary table 6 is installed on the side of the puncture table 5, and a contact plate 7 is installed at the end of the puncture table 5. A threading hole is opened on the surface of the puncture table 5, and the suture is installed on the surface of the puncture table 5 through the threading hole, and then the suture is clamped and fixed by the auxiliary table 6. The contact plate 7 slides within the internal cavity of the puncture table 5. A pressure sensor 8 is installed on the surface of the contact plate 7. When the contact plate 7 slides inside the puncture table 5, the gear 902 can be driven to rotate through the tooth plate 903, so that the auxiliary rod 901 rotates inside the auxiliary table 6, so that the auxiliary rod 901 clamps the suture;

[0038] As an embodiment of the present invention, the number of the auxiliary tables 6 is two groups, and the two groups of auxiliary tables 6 are symmetrically distributed on the side of the puncture table 5, and the two groups of auxiliary tables 6 are bidirectional barbed structures;

[0039] As an embodiment of the present invention, the puncture adjustment assembly includes an auxiliary rod 901 rotatably connected to the inside of the auxiliary table 6, a gear 902 is installed on the side end of the auxiliary rod 901, a tooth plate 903 that slides within the auxiliary table 6, and a support rod 904 installed on the surface of the contact plate 7. The puncture adjustment assembly can clamp the suture during the puncture process on the puncture table 5 to avoid the problem that the suture may become loose or fall off due to resistance during the puncture process.

[0040] As an embodiment of the present invention, a spring is installed on the surface of the contact plate 7, and the other end of the spring is connected to the inner wall of the internal cavity of the puncture table 5. The side end of the support rod 904 slides within the internal notch of the auxiliary table 6. The side end of the support rod 904 is connected to the tooth plate 903. When the support rod 904 slides, it can drive the auxiliary rod 901 to rotate and close through the tooth plate 903;

[0041] As an embodiment of the present invention, a spring is installed at the top of the fixing ring 12, and the other end of the spring is connected to the bottom of the connecting platform 13. There are four groups of springs, and the four groups of springs are distributed in a circular shape on the surface of the fixing ring 12;

[0042] Due to the different sizes of the fiber ring, the puncture force of the suture device will change, and the change of the puncture force of the suture device is not convenient for controlling the suturing depth, and the existing suturing device is not convenient for adjusting the puncture angle of the fiber ring. The specific implementation method is as follows: the suture thread is passed through the suture hole inside the puncture table and fixed on the surface of the puncture table 5. The rear suture thread is hung inside the auxiliary table 6, and then the first sleeve 1 and the second sleeve 2 are extended into the body. Then, the bottom plug of the push rod 15 is inserted into the square groove at the top of the connecting table 13. The electromagnet in the plug is energized by the controller, and the plug is adsorbed on the connecting table 13. During puncture, the push rod is pressed, and the push rod 15 drives the connecting platform 13 to move downward in the first sleeve 1. The bottom of the connecting platform 13 squeezes the pressure plate 14, and the pressure plate 14 moves downward in the first sleeve 1. The pressure plate 14 pushes the suturing rod 4 out of the second sleeve 2 through the second oil tank 116 and the second piston rod 117. The puncture platform 5 is subjected to the resistance force of the fiber ring, and the resistance plate 7 slides in the internal cavity of the puncture platform 5. The resistance plate 7 drives the tooth plate 903 to move through the support rod 904, and the tooth plate 903 drives the gear 902 to rotate. The gear 902 drives the auxiliary rod 901 to rotate inside the auxiliary platform 6 to clamp the suture line.

[0043] The surface pressure sensor 8 of the contact plate 7 detects the force of the puncture table 5, and the extended end of the electric push rod 10 pushes the second connecting block 113 to rise in the first sleeve 1. The second connecting block 113 drives the first connecting block 112 to move down in the second sleeve 2 through the connecting rod 111. The first connecting block 112 drives the second sleeve 2 to rotate inside the first sleeve 1 to adjust the angle of the second sleeve 2. When the second connecting block 113 rises, the top of the second connecting block 113 squeezes the first piston rod 115, so that the oil in the first oil tank 114 is injected into the second oil tank 116. The oil in the second oil tank 116 pushes the second piston rod 117 to extend, and the second piston rod 117 pushes the guide wire 3 in the first sleeve 1 When the puncture is completed, the puncture table 5 loses pressure, and the spring drives the contact plate 7 to reset, and the contact plate 7 drives the support rod 904 to move, and the support rod 904 drives the tooth plate 903 to move, and the tooth plate 903 drives the auxiliary rod 901 to reset through the gear 902, and the suture thread passes through the wound and the fiber ring is closed by the knotter. The push rod 15 is released and the spring drives the connecting platform 13 to reset. The connecting platform 13 moves up and the pressure plate 14 drives the guide wire 3 to move up through the second oil tank 116 and the second piston rod 117. The guide wire 3 drives the puncture table 5 to retract into the second sleeve 2 through the suturing rod 4;

[0044] As an embodiment of the present invention, the outer surfaces of the first connecting block 112 and the second connecting block 113 are arc-shaped. The first connecting block 112 and the second connecting block 113 are distributed opposite each other inside the first sleeve 1 and the second sleeve 2. The outer surface of the first connecting block 112 is fixedly connected to the inner wall of the top end of the second sleeve 2. A sliding groove is provided at the top end of the second connecting block 113. The bottom end of the first piston rod 115 slides within the sliding groove at the top end of the second connecting block 113. A hose is connected between the first oil tank 114 and the second oil tank 116.

[0045] As an embodiment of the present invention, a square groove is opened inside the connecting platform 13, and an insert block is installed at the bottom of the push rod 15. The size of the insert block is adapted to the square groove, the bottom of the insert block is chamfered, and an electromagnet is installed in the insert block.

[0046] Working principle: When working, the suture is passed through the suture hole inside the puncture table and fixed on the surface of the puncture table 5. The rear suture is mounted inside the auxiliary table 6. Then the first sleeve 1 and the second sleeve 2 are extended into the body. Then the bottom plug of the push rod 15 is inserted into the square groove at the top of the connecting table 13. The electromagnet in the plug is energized by the controller, and the plug is adsorbed on the connecting table 13. When puncturing, the push rod is pressed, and the push rod 15 drives the connecting table 13 to move down in the first sleeve 1. The connecting table 13 The bottom squeezes the pressure plate 14, which moves downward in the first sleeve 1. The pressure plate 14 pushes the suture rod 4 out of the second sleeve 2 through the second oil tank 116 and the second piston rod 117. The puncture table 5 is subjected to the resistance force of the fiber ring, and the resistance plate 7 slides in the internal cavity of the puncture table 5. The resistance plate 7 drives the tooth plate 903 to move through the support rod 904. The tooth plate 903 drives the gear 902 to rotate. The gear 902 drives the auxiliary rod 901 to rotate inside the auxiliary table 6 to clamp the suture thread.

[0047] The surface pressure sensor 8 of the contact plate 7 detects the force of the puncture table 5, and the extended end of the electric push rod 10 pushes the second connecting block 113 to rise in the first sleeve 1. The second connecting block 113 drives the first connecting block 112 to move down in the second sleeve 2 through the connecting rod 111. The first connecting block 112 drives the second sleeve 2 to rotate inside the first sleeve 1 to adjust the angle of the second sleeve 2. When the second connecting block 113 rises, the top of the second connecting block 113 squeezes the first piston rod 115, so that the oil in the first oil tank 114 is injected into the second oil tank 116. The oil in the second oil tank 116 pushes the second piston rod 117 to extend, and the second piston rod 117 pushes the guide wire 3 in the first sleeve 1 When the puncture is completed, the guide wire 3 moves downward, and the suturing rod 4 moves downward in the second sleeve 2. The suturing rod 4 pushes the puncture table 5 to extend, increasing the puncture depth of the puncture table 5. After the puncture table 5 is completed, the puncture table 5 loses pressure, and the spring drives the contact plate 7 to reset. The contact plate 7 drives the support rod 904 to move, and the support rod 904 drives the tooth plate 903 to move. The tooth plate 903 drives the auxiliary rod 901 to reset through the gear 902. The suture thread passes through the wound and the fiber ring is closed by the knotter. The push rod 15 is released and the spring drives the connecting platform 13 to reset. The connecting platform 13 moves the pressure plate 14 upward and drives the guide wire 3 to move upward through the second oil tank 116 and the second piston rod 117. The guide wire 3 drives the puncture table 5 to retract into the second sleeve 2 through the suturing rod 4.

[0048] Any content not described in detail in this specification is prior art known to those skilled in the art. In the description of the present invention, unless otherwise specified, "plurality" means two or more. Terms such as "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings and are intended solely for ease of description and simplification. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation and are therefore not to be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, unless otherwise specified or limited, the terms "connected" and "connected" are to be understood broadly, meaning, for example, fixedly connected, detachably connected, or integrally connected; mechanically connected, electrically connected; directly connected, or indirectly connected through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention on a case-by-case basis.

[0049] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lumbar intervertebral disc annulus suture device, comprising a first sleeve (1), characterized in that: The bottom of the first sleeve (1) is rotatably connected to the second sleeve (2), a guide wire (3) is limitedly slidably provided inside the first sleeve (1), a suturing rod (4) is installed at the end of the guide wire (3), and a puncture table (5) is installed at the end of the suturing rod (4) through a puncture adjustment component, an electric push rod (10) is installed on the inner wall surface of the bottom end of the first sleeve (1), an angle adjustment component is provided in the gap between the first sleeve (1) and the second sleeve (2), a fixing ring (12) is installed on the inner wall of the first sleeve (1), a connecting table (13) is limitedly slidably provided inside the first sleeve (1), a pressing plate (14) is installed at the bottom of the connecting table (13), and a pushing rod (15) is inserted into the connecting table (13); The angle adjustment component includes a connecting rod (111) rotatably connected to the surface of the rotating shaft of the second sleeve (2), one end of the connecting rod (111) is rotatably connected to a first connecting block (112), the other end of the connecting rod (111) is rotatably connected to a second connecting block (113), the protruding end of the electric push rod (10) is connected to the bottom of the second connecting block (113), and also includes a first oil tank (114) installed on the inner wall of the first sleeve (1), a first piston rod (115) is limited and slidable inside the first oil tank (114), a second oil tank (116) is installed at the bottom of the pressure plate (14), and a second piston rod (117) is limited and slidable inside the second oil tank (116).

2. The lumbar disc annulus suture device according to claim 1, characterized in that: A corrugated elbow is installed in the gap between the first sleeve (1) and the second sleeve (2), an auxiliary platform (6) is installed on the side of the puncture platform (5), a contact plate (7) is installed at the end of the puncture platform (5), a threading hole is opened on the surface of the puncture platform (5), the contact plate (7) is limited and slides in the internal cavity of the puncture platform (5), and a pressure sensor (8) is installed on the surface of the contact plate (7).

3. The lumbar disc annulus suture device according to claim 2, characterized in that: The auxiliary tables (6) are provided in two groups, and the two groups of auxiliary tables (6) are symmetrically distributed on the side of the puncture table (5).

4. The lumbar disc annulus suture device according to claim 3, characterized in that: The puncture adjustment assembly includes an auxiliary rod (901) rotatably connected to the inside of the auxiliary platform (6), a gear (902) is installed on the side end of the auxiliary rod (901), a toothed plate (903) that slides within the auxiliary platform (6), and a support rod (904) installed on the surface of the contact plate (7).

5. The lumbar disc annulus suture device according to claim 4, characterized in that: A spring is installed on the surface of the contact plate (7), and the other end of the spring is connected to the inner wall of the internal cavity of the puncture table (5). The side end of the support rod (904) slides within the internal notch of the auxiliary table (6), and the side end of the support rod (904) is connected to the tooth plate (903).

6. The lumbar disc annulus suture device according to claim 5, characterized in that: A spring is installed at the top of the fixing ring (12), and the other end of the spring is connected to the bottom of the connecting platform (13). There are four groups of springs, and the four groups of springs are distributed in a circular shape on the surface of the fixing ring (12).

7. The lumbar disc annulus suture device according to claim 6, characterized in that: The outer surfaces of the first connecting block (112) and the second connecting block (113) are arc-shaped, and the first connecting block (112) and the second connecting block (113) are distributed opposite to each other inside the first sleeve (1) and the second sleeve (2).

8. The lumbar disc annulus fibrosus suture device according to claim 7, characterized in that: The outer surface of the first connecting block (112) is fixedly connected to the inner wall of the top end of the second sleeve (2); a sliding groove is provided at the top end of the second connecting block (113); the bottom end of the first piston rod (115) slides within the sliding groove at the top end of the second connecting block (113); and a hose is connected between the first oil tank (114) and the second oil tank (116).

9. The lumbar disc annulus suture device according to claim 8, characterized in that: A square groove is provided inside the connecting platform (13), and an insert block is installed at the bottom of the pushing rod (15). The size of the insert block is adapted to the square groove, the bottom of the insert block is provided with a chamfer, and an electromagnet is installed in the insert block.

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