A component for elastic reinforcement of intervertebral discs

By implanting an elastic reinforcing band around the intervertebral disc, the problem of re-protrusion after minimally invasive intervertebral disc surgery is solved by utilizing its inward pressure and blocking effect. This avoids degeneration of adjacent intervertebral discs and restriction of lumbar spine mobility, thus improving the treatment effect.

CN118873230BActive Publication Date: 2025-10-31SHANGHAI JIAOTONG UNIV
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Patent Information

Application Number
CN202411108281.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-13
Publication Date
2025-10-31
Estimated Expiration
2044-08-13

AI Technical Summary

Technical Problem

In existing technologies, minimally invasive discectomy may result in recurrent disc herniation after surgery, while spinal internal fixation techniques are prone to causing degeneration and herniation of adjacent intervertebral discs, and also affect lumbar spine mobility and work capacity.

Method used

An elastic reinforcement band is implanted around the intervertebral disc. The inward pressure and physical blockage generated by the elastic reinforcement band prevent the annulus fibrosus from bulging and the nucleus pulposus from protruding again, while preserving the physiological range of motion of the lumbar spine.

Benefits of technology

It effectively prevents the recurrence of intervertebral disc herniation, reduces the possibility of adjacent intervertebral disc degeneration, and maintains lumbar spine mobility and work capacity.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to a medical device, specifically a component for elastic reinforcement of intervertebral discs, including an elastic reinforcement band, a variable working sleeve, a guidewire implantation guide sleeve, a guidewire implanter, and a top rod. The elastic reinforcement band includes a buckle at the head end, a buckle in the middle, and a channel penetrating the elastic reinforcement band. The variable working sleeve includes a pair of detachable half-cylinders and at least a pair of conversion kits. The half-cylinders have male and female ends for interconnection, and the conversion kits have male and female ends for connecting the half-cylinders. The guidewire implanter includes a guide rod and a control section. The guide rod includes a traction wire connected to the head end of the guide rod and a plasma knife located at the head end of the guide rod. The control section includes a direction adjustment handle connected to the traction wire. Compared with the prior art, this invention solves the problems of re-protrusion after intervertebral disc surgery and the easy occurrence of degeneration and protrusion of adjacent intervertebral discs. This solution prevents re-protrusion based on the inward pressure and physical obstruction of the elastic band, while preserving the physiological mobility of the lumbar spine.
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Description

Technical Field

[0001] This invention relates to a medical device, specifically to a component for elastic reinforcement of intervertebral discs. Background Technology

[0002] Treatment of lumbar disc herniation, especially the repair of ruptured discs, has always been a hot topic in medical research. Currently, most scholars and clinical practitioners focus on using minimally invasive methods to remove the herniated disc and employing various methods, including annulus fibrosus suture, molecular biology methods, and even stem cell technology, to repair the torn annulus fibrosus. However, because the intervertebral disc is a weight-bearing tissue with poor blood supply, poor healing of the annulus fibrosus is common, or even if it heals, its toughness is significantly reduced compared to before the rupture. The probability of the nucleus pulposus protruding again from the original rupture site after treatment for lumbar disc herniation remains high. Furthermore, after treatment for disc herniation, patients often cannot tolerate prolonged standing or sitting, leading to a decline in their ability to work. If lumbar fusion and internal fixation surgery is performed, there is also a certain probability of postoperative lumbar spine syndrome and adjacent vertebral disease.

[0003] Therefore, a new technology or device is needed to overcome the problems and defects in the treatment of intervertebral discs, thereby improving the treatment effect on patients and reducing postoperative discomfort and recurrence. Summary of the Invention

[0004] The purpose of this invention is to provide a component for elastic reinforcement of intervertebral discs to solve at least one of the above-mentioned problems. This addresses the issues of potential re-protrusion of the intervertebral disc after minimally invasive intervertebral disc surgery and the tendency for adjacent intervertebral discs to degenerate and protrude after spinal internal fixation surgery. This solution achieves the prevention of bulging of the annulus fibrosus and re-protrusion of the nucleus pulposus by using an elastic reinforcement band to cover the annulus fibrosus of the diseased intervertebral disc. This is based on the inward pressure generated by elasticity and physical obstruction. At the same time, it preserves the physiological mobility of the lumbar spine.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] An assembly for elastic reinforcement of intervertebral discs includes an elastic reinforcement band, a variable working sleeve, a guidewire implanter, a push rod, and a guidewire implantation guide sleeve.

[0007] The elastic reinforcing band includes a buckle at the head end, a buckle in the middle, and a channel through which the elastic reinforcing band is formed; after the elastic reinforcing band is formed into a ring, the buckle is locked inside the buckle to achieve the locking of the ring structure; the channel is used for the guide wire to pass through.

[0008] The variable working sleeve includes a pair of detachable half-bodies and at least a pair of conversion kits; the half-bodies are respectively provided with male and female ends for interconnection, and the two ends of the conversion kits are respectively provided with male and female ends for connecting the half-bodies; when the half-bodies are interconnected, the formed central through hole is used for the guide wire implanter; when the half-bodies and the conversion kits are connected together, the formed central through hole is used for the elastic reinforcing band.

[0009] The guidewire implanter has a tubular structure with a central through-hole for the guidewire to pass through; the guidewire implanter includes a guide rod and a control section; the guide rod includes a traction wire connected to the head end of the guide rod and a plasma knife disposed at the head end of the guide rod; the control section includes a direction adjustment handle connected to the traction wire.

[0010] The aforementioned push rod is used to push the buckle after the elastic reinforcing band is formed into a loop to tighten and lock the elastic reinforcing band;

[0011] The guide wire implantation guide sleeve has an arc-shaped section for guiding the direction of guide wire insertion.

[0012] Preferably, the buckle consists of a series of ratchet teeth, which are inserted through the end of the elastic reinforcing band by the buckle head and then tightened and locked at the buckle.

[0013] Preferably, the channel is formed at the center of the elastic reinforcing strip.

[0014] Preferably, the semi-cylinders are connected to each other and to the conversion kit via plug-in or snap-fit ​​connections.

[0015] Preferably, the semi-cylinder includes a male end semi-cylinder and a female end semi-cylinder, both ends of the male end semi-cylinder are provided with male end protrusions, and both ends of the female end semi-cylinder are provided with female end grooves.

[0016] Preferably, one end face of the conversion kit is provided with a protrusion that connects and mates with the female end groove, and the other end face of the conversion kit is provided with a groove that connects and mates with the male end protrusion.

[0017] Preferably, four direction adjustment handles and four traction wires are provided, with each direction adjustment handle controlling the direction of one traction wire independently.

[0018] Preferably, the direction adjustment handle and the traction wire are evenly arranged around the circumference of the guide wire implanter.

[0019] Preferably, an electrode wire for connecting the plasma knife is also provided through the guide rod.

[0020] Preferably, the plasma knife is positioned close to the center of the guide rod.

[0021] Preferably, the guidewire implantation guide sleeve includes a connected straight segment and an arc-shaped segment. An opening is formed on the sidewall of the straight segment near the arc-shaped segment, and a linear slit is provided between the apex of the opening and the end of the arc-shaped segment. The straight segment facilitates the positioning and insertion of the guidewire implantation guide sleeve, the opening allows the guidewire to pass through the sleeve, the arc-shaped segment guides the direction of the guidewire's movement within the sleeve, and the linear slit facilitates easy removal of the guidewire implantation guide sleeve by directly pulling it outwards after insertion.

[0022] The guide wire implantation guide sleeve is preferably made of an elastic material, which allows it to be better embedded in the intervertebral disc and to better surround and conform to the intervertebral disc; the guide wire implantation guide sleeve is preferably made of an X-ray radiopaque material, so the implantation of the guide wire implantation guide sleeve can be performed under CT or DSA; when the guide wire implantation guide sleeve is implanted, it can be used with a cannula to achieve guidance during implantation.

[0023] The working principle of this invention is as follows:

[0024] The instrument assembly of this invention is used for intervertebral disc elastic reinforcement band implantation, a procedure primarily used to prevent recurrence of herniated discs after endoscopic spinal surgery for herniated discs. In the former case, when an endoscopic disc herniation is diagnosed, an elastic reinforcement band is implanted. Its working principle lies in the fact that the outer annulus fibrosus of the herniated disc remains intact; the elastic reinforcement band, applied directly, exerts inward pressure and physical resistance, preventing the nucleus pulposus from protruding and causing the bulging annulus fibrosus to retract. The latter case is based on a similar theoretical foundation, primarily utilizing the inward pressure and resistance of the elastic reinforcement band to prevent recurrence of the herniation.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] Currently, there is a great deal of research and practice in the academic community regarding the repair of intervertebral disc fibrous ruptures. This invention, however, does not focus on the repair of the intervertebral disc itself, but instead adds a ring-shaped, highly elastic intervertebral disc reinforcement band around the disc. Even if the rupture in the annulus fibrosus does not heal well, the elastic reinforcement band, by providing physical resistance and inward pressure, theoretically eliminates the possibility of recurrence. Furthermore, because the intervertebral disc reinforcement band uses a highly elastic material, it does not affect the segmental mobility of the intervertebral disc and maintains a certain intervertebral disc height, thus having no impact on lumbar spine function or work capacity, and does not lead to adjacent vertebral diseases. Attached Figure Description

[0027] Figure 1This is a schematic diagram of the structure of the component of the present invention in its first state of use;

[0028] Figure 2 This is a schematic diagram of the structure of the component of the present invention when used in the second state;

[0029] Figure 3 This is a front view schematic diagram of the elastic reinforcement strip.

[0030] Figure 4 This is a side view of the elastic reinforcement strip.

[0031] Figure 5 This is a schematic cross-sectional view of the elastic reinforcement strip.

[0032] Figure 6 This is an exploded view of the variable working sleeve structure;

[0033] Figure 7 This is a schematic diagram of the conversion kit;

[0034] Figure 8 This is a schematic diagram of the side cross-section of the guidewire implanter.

[0035] Figure 9 This is a schematic diagram of the front sectional view of the guidewire implanter.

[0036] Figure 10 A side view of the structure when the push rod is inserted into the tightening elastic reinforcement band;

[0037] Figure 11 A cross-sectional view of the structure when the push rod is inserted into the tightening elastic reinforcement band;

[0038] Figure 12 A schematic diagram of the structure for implanting a guide sleeve into the guidewire;

[0039] Figure 13 A schematic diagram of a guide sleeve implanted to guide the guidewire's path;

[0040] Figure 14 This is a schematic diagram of the structure when the guide wire is inserted through the guide sleeve during guide wire implantation;

[0041] In the diagram: 1-Elastic reinforcing band; 11-Clip; 12-Inverted buckle; 13-Channel; 2-Variable working sleeve; 21-Half-cylinder; 22-Conversion kit; 3-Guide wire implanter; 31-Guide rod; 311-Traction wire; 312-Plasma knife; 313-Electrode lead wire; 32-Control section; 321-Direction adjustment handle; 4-Top rod; 5-Guide wire implantation guide sleeve; 51-Straight section; 52-Arc section; 53-Opening; 54-Linear crack. Detailed Implementation

[0042] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0043] Example

[0044] A component for elastic reinforcement of the intervertebral disc, such as Figure 1-14 As shown, it includes an elastic reinforcing band 1, a variable working sleeve 2, a guidewire implanter 3, a push rod 4, and a guidewire implantation guide sleeve 5;

[0045] The elastic reinforcing band 1 includes a buckle 11 at the head end, a buckle 12 in the middle, and a channel 13 through which the elastic reinforcing band 1 is formed; after the elastic reinforcing band 1 is formed into a ring, the buckle 11 is locked in the buckle 12 to achieve the locking of the ring structure; the channel 13 is used to pass through the guide wire.

[0046] The variable working sleeve 2 includes a pair of detachable half-cylinders 21 and at least one pair (usually two or four) of conversion kits 22; the half-cylinders 21 are respectively provided with male and female ends for interconnection, and the two ends of the conversion kits 22 are respectively provided with male and female ends for connecting the half-cylinders 21; when the half-cylinders 21 are interconnected, the central through hole formed is used for the guide wire implanter 3 to pass through; when the half-cylinders 21 and the conversion kits 22 are connected together, the central through hole formed is used for the elastic reinforcing band 1 to pass through.

[0047] The guidewire implanter 3 has a tubular structure with a central through hole for the guidewire to pass through; the guidewire implanter 3 includes a guide rod 31 and a control section 32; the guide rod 31 includes a traction wire 311 connected to the head end of the guide rod 31 and a plasma knife 312 disposed at the head end of the guide rod 31; the control section 32 includes a direction adjustment handle 321 connected to the traction wire 311.

[0048] The top rod 4 is used to push the buckle 11 to tighten and lock the elastic reinforcing band 1 after it is looped.

[0049] The guide wire implantation guide sleeve 5 is provided with an arc-shaped section 52 for guiding the direction of guide wire insertion.

[0050] More specifically, in this embodiment:

[0051] This component can be divided into two parts: the first part is the intervertebral disc elastic reinforcement belt 1, and the second part is the implantation kit of the intervertebral disc elastic reinforcement belt 1 (specifically including the variable working sleeve 2, the guide wire implantation guide sleeve 5, the guide wire implanter 3, and the top rod 4).

[0052] Intervertebral disc elastic reinforcement band 1 is a band-shaped elastic band used to wrap around the outer perimeter of the intervertebral disc. For example... Figure 3-5As shown, the middle part (near the tail end) features a buckle 12 structure. Its head end is a buckle 11, which passes through the tail end of the elastic reinforcing band 1 and engages with the buckle 12, forming a loop. The band is then tightened around the intervertebral disc by the push of the top rod 4. (The length of the elastic reinforcing band 1 and the specific position of the buckle 12 must ensure that the elastic reinforcing band 1 can surround the intervertebral disc and lock after tightening). A channel 13 is provided through the center of the elastic reinforcing band 1. This channel 13 is used to pass a guide wire to guide the elastic reinforcing band 1 within the body, allowing it to accurately pass around the intervertebral disc.

[0053] Variable working sleeve 2, such as Figure 6 , 7 As shown, it consists of a pair of semi-cylindrical bodies 21 and two or four conversion kits 22. The need for the conversion kits 22 is determined based on the usage state (step). The ends of the semi-cylindrical bodies 21 are respectively provided with male and female ends for interconnection. At both ends of the conversion kits 22, corresponding female and male ends are respectively provided to ensure a reliable connection between the conversion kits 22 and the semi-cylindrical bodies 21. The semi-cylindrical bodies 21 can be connected to each other and to the conversion kits 22 in a detachable manner, such as by plugging or snapping. In this embodiment, specifically as follows... Figure 6 , 7 One half-cylinder 21 has male ends at both ends, while the other half-cylinder 21 has female ends at both ends. The male ends use a protrusion and the female ends use a groove, allowing for quick and efficient assembly and disassembly of the half-cylinders 21 and between the half-cylinders 21 and the conversion kit 22. In other embodiments, the half-cylinders 21 can each have a male end and a female end; the male and female ends can be connected using a mortise and tenon joint structure, etc. When the variable working sleeve 2 is used (when the guidewire is introduced during surgery), only the two half-cylinders 21 are combined to form a cylindrical structure, the center of which can accommodate a conventional percutaneous endoscopic discectomy (PED) and a variable-direction guidewire implanter 3 inserted via the PED. When the variable working sleeve 2 is deformed (when the elastic reinforcing band 1 is introduced during surgery), the original two half-cylinders 21 are separated, and conversion kits 22 are set at the connecting ends to form an elongated hole in the center (equivalent to lengthening along the diameter), allowing the elastic reinforcing band 1 to pass through.

[0054] The guidewire implanter 3 is a tubular structure with a central through-hole for the guidewire to pass through. (Example) Figure 8 , 9The device consists of a guide rod 31 at the head end and a control section 32 at the tail end. The control section 32 has four directional adjustment handles 321 evenly spaced circumferentially. Correspondingly, four traction wires 311 are installed inside the guide rod 31. Each of the four traction wires 311 is independently connected between the head end of the guide wire implanter 3 and each directional adjustment handle 321. Each directional adjustment handle 321 independently controls the traction wire 311 to transmit force to the head end (the tip) to adjust the direction of the head end of the guide wire implanter 3. Furthermore, a plasma knife 312 (plasma radiofrequency knife head) is installed at the head end of the guide wire implanter 3. The tip of the guide wire implanter 3 can be moved by adjusting the direction adjustment handles 321, thereby completing the separation and hemostasis of the intervertebral disc. The plasma electrode wire 313 corresponding to the plasma knife 312 passes through the guide rod 31 and is closer to the internal through-hole than the traction wires 311, allowing the plasma knife 312 at the head end to be closer to the center position.

[0055] Push rod 4, as Figure 10 and 11 As shown, it is used after the elastic reinforcing band 4 is inserted. After the buckle 11 is inserted through the end of the elastic reinforcing band 1, the push rod 4 pushes the buckle 11 inside the guide rod 31 to reach the inverted buckle 12 position, thereby tightening the elastic reinforcing band 4 into a loop. When in use, it can cover one corner of the buckle 11 but cannot completely cover the buckle 11, thus achieving effective pushing and avoiding the situation where the hollow part of the push rod 4 is completely covered by the buckle 11, making it impossible to push.

[0056] Guide wire implantation guide sleeve 5, such as Figure 12 The guidewire implantation guide sleeve 5 includes a straight segment 51 and an arc-shaped segment 52 connected as one piece. An opening 53 is provided on the straight segment 51 near the arc-shaped segment 52, and a linear slit 54 (the dotted line in the figure) is provided from the lower end of the opening 53 to the end of the arc-shaped segment 52. Because muscles (such as the psoas major muscle) are attached to the side of the intervertebral disc, and relying solely on the guidewire implanter 4 for partial steering presents certain difficulties and challenges, this solution further utilizes the guidewire implantation guide sleeve 5 to facilitate the coiling of the guidewire on the outside of the intervertebral disc. Further, as... Figure 13As shown (the guidewire is inserted and coiled in the direction indicated by the arrow), when using the guidewire implantation guide sleeve 5 to guide the guidewire around the intervertebral disc, a guidewire implantation guide sleeve 5 is embedded on each side of the intervertebral disc. It is positioned at locations with a large intervertebral disc curvature, conforming as closely as possible to the disc's arc. The guidewire first passes through the variable working sleeve 2 to the right side of the intervertebral disc and advances along the upper side of the disc. With fine-tuning by the guidewire implanter 3, it enters the left guidewire implantation guide sleeve 5 through the opening 53 of the left guidewire implantation guide sleeve 5. The guidewire continues to advance along the arc-shaped segment 52 of the sleeve 5, and under the fine adjustment of the guidewire implanter 3, it enters the arc-shaped segment 52 of the right-side guidewire implantation guide sleeve 5 from the end of the right-side guidewire implantation guide sleeve 5. Under the fine adjustment of the guidewire implanter 3, the guidewire exits through the opening 53 of the right-side guidewire implantation guide sleeve 5, completing the coiling of the guidewire around the intervertebral disc. Then, the guidewire implantation guide sleeve 5 is pulled outwards directly, and the guidewire passes through the linear slit 54, thereby removing the guidewire implantation guide sleeve 5. Furthermore, to facilitate the embedding of the guidewire implantation guide sleeve 5 into both sides of the intervertebral disc, it can also be used in conjunction with a relatively rigid, straight cannula, such as... Figure 14 The end of the cannula is obliquely cut to fully expose the opening 53. This cannula protects the guidewire implantation guide sleeve 5 from compression or obstruction by other tissues or bones during insertion, preventing it from reaching the target position. The diameter of the guidewire implantation guide sleeve 5 is sufficient to allow the guidewire to pass through and to turn, resulting in a small incision. Furthermore, the guidewire implantation guide sleeve 5 is made of elastic material, which better conforms to the sidewall of the intervertebral disc. Additionally, the guidewire implantation guide sleeve 5 can be made of X-ray radiopaque material, allowing the insertion process to be performed under CT or DSA observation, ensuring proper placement.

[0057] Figure 1 and Figure 2 This is a schematic diagram of the component during two stages of surgery, showing that the surgery for implanting the intervertebral disc elastic reinforcement band 1 is divided into two parts:

[0058] In the first part, under the monitoring of CT or DSA, a variable-direction guidewire implanter 3 is used, with the aid of a plasma knife 312 at the tip, to separate the muscle attachment points attached to the side of the intervertebral disc. After separating the muscle attachment points on the side of the intervertebral disc, the guidewire implantation guide sleeve 5 is embedded on both sides of the intervertebral disc. Under conventional spinal endoscopy, the intervertebral foramen and the safety triangle are exposed, and the guidewire is implanted. Guided by the spinal endoscope and using the variable-direction guidewire implanter 3 and the guidewire implantation guide sleeve 5, the guidewire passes through the intervertebral foramen, behind the dural sac in the spinal canal, and the contralateral intervertebral foramen, then exits through the contralateral intervertebral foramen, circles the intervertebral disc, and returns to the ipsilateral safety triangle. During the movement of the variable-direction guidewire implanter 3, under the monitoring of CT or X-ray, the direction adjustment handle 321 can be used ( Figure 8Adjusting the direction. After the variable-direction guidewire implanter 3 has circled the intervertebral disc once, the guidewire is inserted through the channel 13 in the center of the elastic reinforcement band 1. Figure 5 The guidewire is pulled outwards into the guide sleeve 5, and the guidewire passes through the linear slit 54, thereby allowing the guidewire to be removed from the guide sleeve 5.

[0059] The second part of the surgery involves the implantation and compression connection of the intervertebral disc elastic reinforcement band 1. The circular variable working sleeve 2 is combined with the conversion kit 22 to convert the central through-hole into an oblong hole. Figure 6 and Figure 7 This can be used with an intervertebral disc elastic reinforcement band 1. Guided by a guide wire, the elastic reinforcement band 1 is implanted around the intervertebral disc to form a circumferential structure; the buckle 11 of the elastic reinforcement band 1 is looped onto its own end to form a loop, and then the buckle 11 is pushed by the top rod 4, and the inverted buckle 12 device ( Figure 2 The elastic reinforcement band 1 is tightened and locked, and the intervertebral disc elastic reinforcement band 1 is wrapped around the intervertebral disc. Then, the excess intervertebral disc elastic reinforcement band 1 at the end is removed.

[0060] In summary, this solution achieves the following: First, the inward pressure and physical obstruction generated by the elasticity of the intervertebral disc reinforcement band 1, which is placed outside the annulus fibrosus of the diseased intervertebral disc, can prevent the bulging of the annulus fibrosus and the re-protrusion of the nucleus pulposus. Second, due to the elasticity of the artificial intervertebral disc, the physiological mobility of the intervertebral disc is preserved, effectively preventing the degeneration and protrusion of adjacent intervertebral discs.

[0061] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A component for elastic reinforcement of intervertebral discs, characterized in that, It includes an elastic reinforcing band (1), a variable working sleeve (2), a guidewire implanter (3), a push rod (4), and a guidewire implantation guide sleeve (5); The elastic reinforcing band (1) includes a buckle (11) at the head end, a buckle (12) in the middle, and a channel (13) through the elastic reinforcing band (1); after the elastic reinforcing band (1) is formed into a ring, the buckle (11) is locked in the buckle (12) to achieve the locking of the ring structure; the channel (13) is used to pass through the guide wire; The variable working sleeve (2) includes a pair of detachable half-cylinders (21) and at least a pair of conversion kits (22); the half-cylinders (21) are respectively provided with male and female ends for interconnection, and the two ends of the conversion kits (22) are respectively provided with male and female ends for connecting the half-cylinders (21); when the half-cylinders (21) are interconnected, the central through hole is used for the guide wire implanter (3); when the half-cylinders (21) and the conversion kits (22) are connected together, the central through hole is used for the elastic reinforcing band (1) to pass through. The guidewire implanter (3) is a tube structure with a central through hole for the guidewire to pass through; the guidewire implanter (3) includes a guide rod (31) and a control section (32); the guide rod (31) includes a traction wire (311) connected to the head end of the guide rod (31) and a plasma knife (312) disposed at the head end of the guide rod (31); the control section (32) includes a direction adjustment handle (321) connected to the traction wire (311); The top rod (4) is used to push the buckle (11) to tighten and lock the elastic reinforcing band (1) after it is looped; The guide wire implantation guide sleeve (5) is provided with an arc-shaped section (52) for guiding the direction of guide wire insertion.

2. The component for elastic reinforcement of intervertebral discs according to claim 1, characterized in that, The buckle (12) consists of several ratchet teeth arranged in a continuous manner. After the buckle head (11) passes through the end of the elastic reinforcing band (1), it is tightened and locked at the buckle (12).

3. The component for elastic reinforcement of intervertebral discs according to claim 1, characterized in that, The semi-cylinders (21) are connected to each other and to the conversion kit (22) by plug-in or snap-fit.

4. A component for elastic reinforcement of intervertebral discs according to claim 3, characterized in that, The semi-cylinder (21) includes a male end semi-cylinder and a female end semi-cylinder. Both ends of the male end semi-cylinder are provided with male end protrusions, and both ends of the female end semi-cylinder are provided with female end grooves.

5. A component for elastic reinforcement of intervertebral discs according to claim 4, characterized in that, The conversion kit (22) has a protrusion on one end face that connects and cooperates with the female end groove, and the conversion kit (22) has a groove on the other end face that connects and cooperates with the male end protrusion.

6. A component for elastic reinforcement of intervertebral discs according to claim 1, characterized in that, The direction adjustment handle (321) and the traction wire (311) are provided in four parts, and each direction adjustment handle (321) controls the direction of a traction wire (311) individually.

7. A component for elastic reinforcement of intervertebral discs according to claim 6, characterized in that, The direction adjustment handle (321) and the traction wire (311) are evenly arranged around the guide wire implanter (3).

8. A component for elastic reinforcement of intervertebral discs according to claim 1, characterized in that, The guide rod (31) is also provided with an electrode wire (313) for connecting the plasma knife (312).

9. A component for elastic reinforcement of intervertebral discs according to claim 8, characterized in that, The plasma knife (312) is positioned near the center of the guide rod (31).

10. A component for elastic reinforcement of intervertebral discs according to claim 1, characterized in that, The guide wire implantation guide sleeve (5) includes a connected straight segment (51) and an arc segment (52). An opening (53) is opened on the side wall of the straight segment (51) near the arc segment (52). A linear slit (54) is provided between the apex of the opening (53) and the end of the arc segment (52).

Citation Information

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