Coupling full intervertebral joints system

A joint and intervertebral technology, applied in the field of coupling full intervertebral joint system, can solve the problems of aggravating patient pain, serious friction and extrusion of bilateral facet joints, and influence on nerve function, so as to improve the recovery effect and avoid facet joint degeneration. and hardening and proliferative effects

Inactive Publication Date: 2007-08-15
博能华医疗器械(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Based on the in-depth analysis of the coupling and linkage characteristics of the intervertebral joints of the spine and many problems in previous clinical cases of simple anterior disc arthroplasty, the inventors found that due to the current surgical methods for implanting biomaterials or mechanical devices in the intervertebral disc, only The intervertebral disc is repaired, while the bilateral small joints are ignored. Therefore, after the intervertebral disc is repaired, although the motor function is restored, the small joints that have degenerated and proliferated and are in a relatively static state after the restoration of the motor function are forced to move with the replaced joint. While exercising, the frict

Method used

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  • Coupling full intervertebral joints system
  • Coupling full intervertebral joints system
  • Coupling full intervertebral joints system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] As shown in FIGS. 4A-10 , in this embodiment, a spring 33 is arranged between the ends 31 and 32 of the micro-motion facet joint 3 to form a spring-type micro-motion facet joint. In this way, after the spring-type fretting facet joint 3 is placed in the human body, it can replace the original bilateral facet joints of the human body to play an auxiliary supporting role for the upper and lower vertebral bodies 11, 12, and because it is an artificial joint, there is no human body principle. Bilateral facet joints can compress nerves due to bone hyperplasia caused by abnormal friction, which can greatly improve the success rate of intervertebral disc surgery and reduce the pain of patients.

[0062] Figures 4A and 4B are the side and rear views of the spring-type micro-motion facet joint 3 of this embodiment in the flexed position of the human body, and Figures 5A and 5B are the spring-type micro-motion facet joint 3 of this embodiment in the neutral position of the human b...

Embodiment 2

[0102] The basic structure of this embodiment is basically the same as that of Embodiment 1 except for the specific structure of the fretting facet joint, and will not be repeated here.

[0103] As shown in Figures 16-18, the difference between this embodiment and Embodiment 1 is that in this embodiment, the micro-motion facet joint 3 has an upper joint body 301 and a lower joint body 302, and the upper and lower joint bodies 301, One of the joint bodies of 302 is provided with a protrusion 303 protruding upwards or downwards, and a groove 304 corresponding to the protrusion 303 is provided on the other joint body, and the protrusion 303 is corresponding to the groove 304 Cooperate to form the concave-convex connection structure of the upper and lower joint bodies 301 and 302 .

[0104] As shown in Figure 19, as another optional implementation of this embodiment, the micro-motion facet joint 3 has an upper joint body 301 and a lower joint body 302, and one joint body of the up...

Embodiment 3

[0110] The basic structure of this embodiment is basically the same as that of Embodiment 1 except for the specific structure of the fretting facet joint, and will not be repeated here.

[0111] As shown in Figure 20, the difference between this embodiment and Embodiment 1 is that the micro-motion facet joint 3 described in this embodiment has an upper joint body 301 and a lower joint body 302, and the upper and lower joint bodies 301, 302 are both An arc-shaped protruding end portion 303 is provided. The fretting facet joint 3 also has a disc 304, on which two arc grooves (not shown) are arranged, corresponding to each arc protruding end respectively, and each arc protruding There is a pin 305 on the end, and this pin 305 is guided to slide in the arc groove on the disc (preferably, although not shown in the figure, but the following structure is easy to understand for the skilled person, the The arc-shaped slot can be a dovetail slot or trapezoidal slot structure with a sma...

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Abstract

The invention discloses a coupled full-intervertebral joint system, which possesses little oligodynamic joint between upper and lower intervertebral end-plate on the spine, wherein one little oligodynamic joint is set between each little joint position on two sides of upper and lower intervertebral or upper and lower crests; one end of little oligodynamic joint is fixed on the vertebral arch root or crest of upper vertebral bulk with the other end fixed on the vertebral arch root or crest of lower vertebral bulk; the joint system is composite joint system with intervertebral little oligodynamic joint and little oligodynamic joint, which replaces lateral joint to support vertebra to avoid joint from degenerating and hardening effectively.

Description

technical field [0001] The invention relates to an intervertebral joint system and a supporting method for the intervertebral joint, in particular to a coupled full intervertebral joint system. Background technique [0002] The spine is an important joint that supports the body of the human body. There are currently many studies on the injury of the intervertebral joints of the spine. At present, the repair of intervertebral joint damage is basically performed on the intervertebral disc joint. For example, for the damaged intervertebral joints, the intervertebral disc joints are cleaned first, and then the disc-shaped fretting joints formed by biomaterials or mechanical devices are implanted into the intervertebral disc joints, and the fretting joints formed by the implanted biomaterials or mechanical devices The joints replace the function of the original human intervertebral discs and support the spine. In addition, because the cross-sectional shape of the intervertebral...

Claims

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Application Information

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IPC IPC(8): A61B17/70A61B17/56A61F2/44
CPCA61F2/44A61F2002/30001
Inventor 邹德威
Owner 博能华医疗器械(北京)有限公司
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