An intervertebral motion preservation device and its integrated implantation device and implantation method

Abstract

The present invention relates to the field of medical technology, in particular to an intervertebral motion preservation device and its integrated implantation device and implantation method. The intervertebral motion preservation device is composed of an upper bone plate, a lining, a nucleus pulposus and a lower bone plate , the inner liner is nested in the upper bone plate, the nucleus pulposus is nested in the lower bone plate, and the inner liner and the nucleus pulposus form a clearance-fit spherical friction pair; the integrated implant device consists of a clamping rod, a holding rod, It consists of a knob. The tapered connector at the tail of the gripping rod is inserted into the rotating cavity at the end of the knob, and the two can rotate freely. The clamping rod penetrates through the inner cavity of the gripping rod and is screwed together with the inside of the knob. The invention allows the operating doctor to perform multi-directional surgical operations without additional surgical duplication instruments, and does not cause relative movement between the product and the implanted device due to operations such as transfer and adjustment in various directions.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to an intervertebral motion preservation device, an integrated implantation instrument and an implantation method thereof. Background technique [0002] Intervertebral motion preservation devices currently have Bryan, Prestige product series, ProDisc C, Mobi-C, PCM, SRCURE-C and other products that have been approved by the FDA and are widely used around the world. implanted device products, but there is still room for improvement in some special implanted device products. At present, there is no intervertebral motion-preserving device approved by CFDA in China. Most of the domestic intervertebral motion-preserving devices are in the patent stage, and few of these patented products have targeted design of special implantation devices. [0003] Some clamping instruments adopt the quick-opening clamping method based on the principle of surgical forceps. This type of clamping instrum...

AI Technical Summary

Problems solved by technology

The present invention aims to solve the following problems in the traditional intervertebral motion preservation device implantation device and implantation method: ①The opening distance of the clamping port of the implantation device exceeds the product size range due to the different design of the clamping principle of the traditional intervertebral motion preservation device , which further lead to problems such as a larger surgical operation window, increased surgical difficulty, and longer postoperative healing time; ② Some traditional intervertebral motion preservation device implants have product displacement and loosening during the process of transferring products after product clamping Issues that seriously affect the implantation of the product; ③Some intervertebral motion-preserving device products have implanted devices that are too small in size or inconvenient to grasp and use force, resulting in inconvenience for doctors to use and poor experience.

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