Intervertebral dynamic fixing system and mesh belt

Abstract

The invention discloses an intervertebral dynamic fixing system and mesh belts, and relates to the technical field of intervertebral medicine, the intervertebral dynamic fixing system is composed of a plurality of longitudinal mesh belts with spinous processes wound in an annular mode and a plurality of transverse mesh belts transversely wound between the spinous processes, the head and tail ends of the longitudinal mesh belts are connected in a lock catch mode, the transverse mesh belts transversely bind the longitudinal mesh belts through a special guider, and the longitudinal mesh belts are connected with the transverse mesh belts. The mesh belt is used for treating chronic lower lumbago, lumbar spinal stenosis, lumbar instability, foramen intervertebrale stenosis, discogenic lower lumbago and other diseases caused by zygopophysis, the mesh belt is used for replacing a non-fusion operation mode of a traditional implant, rejection possibly caused by a soft implant is avoided, and the mesh belt can be used for treating the diseases such as the chronic lower lumbago, the lumbar spinal stenosis, the lumbar instability, the foramen intervertebrale stenosis and the discogenic lower lumbago. Spine spinous processes are wound through the elastic longitudinal and transverse mesh belts, linkage with the spine is achieved, a certain degree of freedom and curvature are provided, the mesh belts are fixed between the upper spinous process and the lower spinous process, excessive movement of the waist is prevented, the lumbar vertebra is stabilized, damaged ligaments are reconstructed, each spinous process is reliably supported, and unnecessary movement is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of intervertebral medicine, and in particular to an intervertebral plate dynamic fixation system and a mesh belt. Background Art

[0002] As the supporting structure of the human body, the spine bears the important tasks of supporting the body weight, protecting the spinal nerves and maintaining the body's motor function. The spine is composed of multiple vertebrae, including the spinous process on the dorsal side, the vertebral body on the front side, and various ligaments and nerve tissues between the vertebrae. With age or due to factors such as trauma, the spine may undergo degenerative changes, common problems such as thinning of the intervertebral disc, loss of elasticity of the yellow ligament, and vertebral slippage, especially in the lumbar region. These changes may cause the intervertebral space to narrow, compress the spinal nerve roots or spinal cord, and then cause clinical symptoms such as lumbar spinal stenosis and nerve root compression, causing severe pain and movement disorders.

[0003] At present, the treatment methods for lumbar degenerative lesions mainly include drug therapy, physical therapy and surgical treatment. In surgical treatment, the interlaminar dynamic fixation system, as a non-fusion technology, has gradually been used. This type of technology aims to restore spinal stability and relieve nerve root compression through surgical methods such as implanting gaskets and prostheses. However, the traditional interlaminar dynamic stabilization system still has some limitations. First, due to individual differences in the shape and size of the spinous processes, it is difficult for existing implants to achieve perfect fusion with the vertebrae. Loosening or separation may occur between the implant and the spinous process, thereby affecting stability and may even cause complications such as fractures or implant shedding. The design of some implants has a sense of rejection, which affects the patient's comfort and postoperative recovery. Therefore, the present invention provides an interlaminar dynamic fixation system and a mesh belt for treating diseases such as chronic low back pain, lumbar spinal stenosis, lumbar instability, foraminal stenosis and disc-induced low back pain caused by articular process lesions. Summary of the invention

[0004] In response to the above technical problems, the present invention discloses an intervertebral lamina dynamic fixation system and mesh belt, which consists of a longitudinal mesh belt wrapped around multiple spinous processes in a ring manner and a transverse mesh belt wrapped transversely between the spinous processes. The head and tail ends of the longitudinal mesh belt are connected by a locking buckle, and the transverse mesh belt is transversely tied to the longitudinal mesh belt by a special guide so that the longitudinal mesh belt fits tightly against the spinous processes.

[0005] Furthermore, the longitudinal mesh belt comprises an intervertebral longitudinal mesh belt bandage portion, a first end of which is fixedly provided with an intervertebral longitudinal mesh belt connecting rope, and a second end of which is fixedly provided with an intervertebral longitudinal mesh belt Japanese-shaped buckle.

[0006] Furthermore, the intervertebral longitudinal mesh bandage portion is made of a material that is harmless to the human body, and the material of the intervertebral longitudinal mesh bandage portion is specifically one or both of polyethylene terephthalate and polyethylene.

[0007] Furthermore, the intervertebral longitudinal mesh bandage portion is retractable, and the intervertebral longitudinal mesh bandage portion corresponds to the external shape of the spinous process, and the intervertebral longitudinal mesh bandage portion is wide and thin.

[0008] Furthermore, one end of the dedicated guide is in a pointed shape, and the pointed shape is a dome shape or a sphere shape.

[0009] Furthermore, the transverse mesh belt comprises an intervertebral transverse mesh belt bandage portion, and an intervertebral transverse mesh belt connecting rope is fixedly installed at both ends of the intervertebral transverse mesh belt bandage portion.

[0010] The method of using the fixing system and mesh belt is as follows:

[0011] Step 1: The intervertebral longitudinal mesh belt connecting rope in the longitudinal mesh belt is passed through the interspinous ligament between two spinous processes and then pulled out, and then the intervertebral longitudinal mesh belt connecting rope is passed through the interspinous ligament between adjacent spinous processes from the pulling-out side and then pulled out, and then the intervertebral longitudinal mesh belt connecting rope is removed so that the first end of the bandage part of the intervertebral longitudinal mesh belt is passed into the Japanese-shaped buckle of the intervertebral longitudinal mesh belt and tightened by a special tightening tool;

[0012] Step 2: Use a longitudinal mesh belt to wrap and tighten each two adjacent spinous processes arranged longitudinally;

[0013] Step 3: Pass the transverse mesh belt through the interspinous ligament between the two spinous processes and through the lower end of the tightened longitudinal mesh belt, and wrap the longitudinal mesh belt transversely and tie it to tighten.

[0014] The beneficial effects of the present invention compared with the prior art are: the present invention can eliminate the rejection feeling from the soft implant or insert by replacing the implant with a mesh belt. The present invention wraps the spinous process with elastic longitudinal mesh belts and transverse mesh belts, thereby linking the activities of the spine and having a certain degree of freedom of bending. In addition, the present invention fixes the spinous processes arranged vertically and horizontally by longitudinal mesh belts and transverse mesh belts, thereby preventing excessive movement when the waist is bent, stabilizing the spine and reconstructing damaged ligaments, thereby reliably supporting each spinous process and preventing unnecessary movement between them. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A longitudinal cross-section of the human spine.

[0016] Figure 2 This is a schematic diagram of the structure of the longitudinal mesh belt of the present invention in use state.

[0017] Figure 3 It is a structural schematic diagram of the longitudinal mesh belt of the present invention in a flat state.

[0018] Figure 4 It is a schematic diagram of the transverse mesh belt structure of the present invention.

[0019] Figure 5 The longitudinal mesh belt of the present invention is schematically shown in the use state structure Figure 1 .

[0020] Figure 6 The longitudinal mesh belt and the transverse mesh belt of the present invention are used in combination. Figure 1 .

[0021] Figure 7 The longitudinal mesh belt of the present invention is schematically shown in the use state structure Figure 2 .

[0022] Figure 8 The longitudinal mesh belt and the transverse mesh belt of the present invention are used in combination. Figure 2 .

[0023] Figure numbers: 1-intervertebral longitudinal mesh belt connecting rope; 2-intervertebral longitudinal mesh belt bandage part; 3-intervertebral longitudinal mesh belt Japanese-shaped buckle; 4-intervertebral transverse mesh belt connecting rope; 5-intervertebral transverse mesh belt bandage part. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0027] Example: Figure 1-Figure 4 As shown, a dynamic intervertebral plate fixation system and mesh belt are used for the treatment of lumbar diseases. They are composed of a longitudinal mesh belt that is wrapped around multiple spinous processes in a ring manner and used to connect adjacent spinous processes, and a transverse mesh belt that is wrapped transversely between the spinous processes and used to tie the longitudinal mesh belt. The head and tail ends of the longitudinal mesh belt are connected by a locking buckle, and the transverse mesh belt is transversely tied to the longitudinal mesh belt by a special guide so that the longitudinal mesh belt fits tightly against the spinous processes.

[0028] The longitudinal mesh belt includes an intervertebral longitudinal mesh belt bandage part 2, an intervertebral longitudinal mesh belt connecting rope 1 is fixedly installed on the first end of the intervertebral longitudinal mesh belt bandage part 2, and an intervertebral longitudinal mesh belt Japanese-shaped buckle 3 is fixedly installed on the second end of the intervertebral longitudinal mesh belt bandage part 2. The intervertebral longitudinal mesh belt bandage part 2 is made of a material that is harmless to the human body, and the material of the intervertebral longitudinal mesh belt bandage part 2 is specifically one or both of polyethylene terephthalate and polyethylene.

[0029] One end of the special guide is in a pointed shape, which is dome-shaped or spherical, so as to minimize the damage to body tissue when the intervertebral longitudinal mesh bandage part 2 is wrapped around the uppermost and lowermost single spinous processes.

[0030] like Figure 5-Figure 8 As shown, the intervertebral longitudinal mesh bandage part 2 is wrapped around two continuously arranged spinous processes and assists in controlling the movement of the spinous processes. The intervertebral longitudinal mesh bandage part 2 is wide and thin, so that the contact area between the intervertebral longitudinal mesh bandage part 2 and the spinous processes is increased, which is convenient for fixation. The intervertebral longitudinal mesh bandage part 2 is woven by one or two of polyethylene terephthalate and polyethylene. The intervertebral longitudinal mesh bandage part 2 is retractable, and the intervertebral longitudinal mesh bandage part 2 corresponds to the external shape of the spinous processes, so that the intervertebral longitudinal mesh bandage part 2 is more convenient and firmly fixed to the spinous processes.

[0031] Before inserting the mesh belt, the operator needs to remove the yellow ligament and interspinous ligament in the surgical site, and then use a special guide to make the intervertebral longitudinal mesh belt connecting rope 1 pass longitudinally or transversely between adjacent spinous processes. The intervertebral longitudinal mesh belt connecting rope 1 is inserted through the multiple spinous processes on the spine by a special guide, and then passes laterally above the uppermost spinous process in the surgical site. Then the intervertebral longitudinal mesh belt connecting rope 1 drives the intervertebral longitudinal mesh belt bandage part 2 to pass through between the spinous processes and lead out. Then the intervertebral longitudinal mesh belt connecting rope 1 is removed, and the first end of the intervertebral longitudinal mesh belt bandage part 2 is inserted into the intervertebral longitudinal mesh belt Japanese-shaped buckle 3 and tightened by a special tightening tool. Take a brand new longitudinal mesh belt, A special guide is used to make the intervertebral longitudinal mesh belt connecting rope 1 of the brand new longitudinal mesh belt pass longitudinally or transversely between adjacent spinous processes. The intervertebral longitudinal mesh belt connecting rope 1 passes through the lowermost spinous process in the surgical site between two adjacent spinous processes on the spine, and then the intervertebral longitudinal mesh belt connecting rope 1 continues to drive the intervertebral longitudinal mesh belt bandage part 2 to pass through between the spinous processes and lead out. The length of the intervertebral longitudinal mesh belt bandage part 2 should be extended so that the spinous process arranged at the top and the spinous process arranged at the lowest end are fully entangled, and then the intervertebral longitudinal mesh belt connecting rope 1 is removed, and the first end of the intervertebral longitudinal mesh belt bandage part 2 is inserted into the intervertebral longitudinal mesh belt Japanese-shaped buckle 3 and tightened by a special tightening tool.

[0032] The transverse mesh belt comprises an intervertebral transverse mesh belt bandage part 5, and both ends of the intervertebral transverse mesh belt bandage part 5 are fixedly installed with an intervertebral transverse mesh belt connecting rope 4, which needs to be passed through the spinous processes with a special guide, and then the longitudinal mesh belt is tied through the transverse mesh belt.

[0033] The intervertebral transverse mesh bandage part 5 tightens the intervertebral longitudinal mesh bandage part 2 and fits it tightly against the longitudinal meshes on both sides of the upper and lower adjacent interspinous processes. The intervertebral transverse mesh bandage part 5 is used to limit the activities of each spinous process and unnecessary movement of the interspinous longitudinal mesh. The intervertebral transverse mesh bandage part 5 has a relatively large width and a relatively small thickness. The intervertebral transverse mesh bandage part 5 can maintain the distance between each spinous process and prevent collision between the spinous processes.

[0034] This embodiment can tightly bundle multiple spinous processes arranged continuously along the length direction of the spine longitudinally in pairs through a longitudinal mesh belt. Furthermore, this embodiment can not only bundle two upper and lower adjacent spinous processes, but also bundle three or more spinous processes arranged continuously with each other through a longitudinal mesh belt, and bundle the longitudinal mesh belt through a transverse mesh belt so that the longitudinal mesh belt fits tightly to the spinous processes, so that the connection between the spinous processes has high toughness and strong stability.

[0035] A method for using an interlaminar dynamic fixation system and a mesh belt is specifically as follows:

[0036] Step 1: The intervertebral longitudinal mesh belt connecting rope 1 in the longitudinal mesh belt is passed through the interspinous ligament between two spinous processes and then pulled out, and then the intervertebral longitudinal mesh belt connecting rope 1 is passed through the interspinous ligament between adjacent spinous processes from the pulling-out side and then pulled out, and then the intervertebral longitudinal mesh belt connecting rope 1 is removed so that the first end of the intervertebral longitudinal mesh belt bandage part 2 is passed into the intervertebral longitudinal mesh belt Japanese-shaped buckle 3 and tightened by a special tightening tool;

[0037] Step 2: Use a longitudinal mesh belt to wrap and tighten each two adjacent spinous processes arranged longitudinally;

[0038] Step 3: Pass the transverse mesh belt through the interspinous ligament between the two spinous processes and through the lower end of the tightened longitudinal mesh belt, and wrap the longitudinal mesh belt transversely and tie it to tighten.

[0039] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different. Any equivalent or simple changes made based on the concept, structure, features and principles of the patent of the present invention are included in the protection scope of the patent of the present invention. The technicians in the technical field of the present invention can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. An interlaminar dynamic fixation system and mesh belt, characterized in that: It consists of a longitudinal mesh belt wrapped around multiple spinous processes in a ring manner and a transverse mesh belt wrapped transversely between the spinous processes. The head and tail ends of the longitudinal mesh belt are connected by a lock. The transverse mesh belt is transversely tied by a special guide to make the longitudinal mesh belt fit tightly against the spinous processes.

2. The interlaminar dynamic fixation system and mesh belt according to claim 1, characterized in that: The longitudinal mesh belt comprises an intervertebral longitudinal mesh belt bandage part (2), a first end of which is fixedly mounted an intervertebral longitudinal mesh belt connecting rope (1), and a second end of which is fixedly mounted an intervertebral longitudinal mesh belt Japanese-shaped buckle (3).

3. The interlaminar dynamic fixation system and mesh belt according to claim 2, characterized in that: The intervertebral longitudinal mesh bandage part (2) is made of a material that is harmless to the human body. The material of the intervertebral longitudinal mesh bandage part (2) is specifically one or both of polyethylene terephthalate and polyethylene.

4. The interlaminar dynamic fixation system and mesh belt according to claim 3, characterized in that: The intervertebral longitudinal mesh bandage part (2) is stretchable and corresponds to the external shape of the spinous process. The intervertebral longitudinal mesh bandage part (2) is wide and thin.

5. The interlaminar dynamic fixation system and mesh belt according to claim 1, characterized in that: One end of the dedicated introducer is in a pointed shape, and the pointed shape is a dome shape or a sphere shape.

6. The interlaminar dynamic fixation system and mesh belt according to claim 1, characterized in that: The transverse mesh belt comprises an intervertebral transverse mesh belt bandage portion (5), and an intervertebral transverse mesh belt connecting rope (4) is fixedly installed at both ends of the intervertebral transverse mesh belt bandage portion (5).

7. The method of using the fixing system and mesh belt described in any one of claims 1 to 6 is as follows: Step 1: The intervertebral longitudinal mesh belt connecting rope (1) in the longitudinal mesh belt is passed through the interspinous ligament between two spinous processes and then pulled out, and then the intervertebral longitudinal mesh belt connecting rope (1) is passed through the interspinous ligament between adjacent spinous processes from the pulling-out side and then pulled out, and then the intervertebral longitudinal mesh belt connecting rope (1) is removed so that the first end of the intervertebral longitudinal mesh belt bandage part (2) is passed into the intervertebral longitudinal mesh belt Japanese-shaped buckle (3) and tightened by a special tightening tool; Step 2: Use a longitudinal mesh belt to wrap and tighten each two adjacent spinous processes arranged longitudinally; Step 3: Pass the transverse mesh belt through the interspinous ligament between the two spinous processes and through the lower end of the tightened longitudinal mesh belt, and wrap the longitudinal mesh belt transversely and tie it to tighten.

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