Replacement-free intervertebral disc prosthesis based on intelligent medical treatment

Abstract

The invention relates to a replacement-free intervertebral disc prosthesis based on intelligent medical treatment, and belongs to the field of medical instruments. The replacement-free intervertebraldisc prosthesis based on intelligent medical treatment comprises a cylindrical drill bit, an upper fixing plate and a lower fixing plate, wherein the cylindrical drill bit drills arc-shaped notches inthe front paths of the upper vertebra and the lower vertebra at the same time; the upper fixing plate and the lower fixing plate are both in an arc shape; the diameter of the upper fixing plate and the diameter of the lower fixing plate are consistent with the diameter of the drill bit; through holes are formed in the upper fixing plate and the lower fixing plate; the axes of the two through holes pass through the axis of the upper fixing plate and the axis of the lower fixing plate respectively; nails are inserted into the two through holes in a matched mode respectively; and nail caps are fixed to the tails of the inserted nails. The prosthesis can be fixedly connected with the vertebra in a narrow intervertebral space, the prosthesis is not exposed, inflammation cannot be caused, meanwhile, a large amount of bone chips generated by traditional replacement surgery are avoided, the intervertebral stress condition is collected and monitored in real time, and a doctor can convenientlymaster the stress condition of the prosthesis in real time.

Description

technical field [0001] The invention relates to a replacement-free intervertebral disc prosthesis based on intelligent medical treatment, which belongs to the field of medical devices. Background technique [0002] The spine plays an important role in load transmission, movement and protection of the spinal nerve roots and front organs in the human body. It is divided into cervical, thoracic, lumbar and sacrum, among which the cervical spine has a complex structure and much greater mobility than the thoracic and lumbar spine. , plays an extremely important role in people's daily life. As a complex mechanical system, it includes vertebral bodies, intervertebral discs and facet joints, ligaments and muscle tissues. The intervertebral disc is the main connecting structure between the vertebral bodies. The upper and lower cartilage endplates and the fibrous ring seal the nucleus pulposus together to form a whole, which is extremely elastic and plays a role in buffering external...

AI Technical Summary

Problems solved by technology

This kind of intervertebral disc usually includes two upper and lower fixing plates and an elastic body between the fixing plates. The end faces of the two fixing plates are fixed with protrusions, which rely on the contact between the protrusions and the end faces of the vertebra to avoid the movement of the fixing plate, but the fixing plate is not connected to the vertebra after all. Fixed connection, always in a free state, the prosthesis has the risk of moving or even detaching, leading to reoperation for correction

The movement of the vertebrae causes the friction between the protrusion and the end face of the vertebra to produce a large amount of bone chips, which will spread and dissociate in the surrounding tissues, and these bone chips are difficult to be absorbed by the body, causing the surrounding tissues to puncture, wear and become inflamed, and these bone chips are difficult to absorb. take out

Some artificial intervertebral discs are fixedly connected to the vertebrae through bolts passing through the ear body on the side wall of the vertebra. The protruding ear will compress the nerve roots and spinal cord, and will occupy the position of normal tissues. Long-term friction and stimulation with tissues can easily lead to inflammation

The elastic body of the intervertebral disc prosthesis is usually a kind of silicone material with good biocompatibility, but unlike other implantable silicone materials in the human body, the intervertebral disc prosthesis needs to bear a large load, and the continuous pressure and deformation lead to the fatigue of the silicone. In the end, the elastic body will collapse and harden, and the intervertebral disc prosthesis will completely lose its function and need to be replaced again. The patient may face 2-4 replacement operations due to elastic body fatigue in his life, causing additional pain and financial burden to the patient

In addition, after the elastic body fails, the patient often cannot feel it by himself, resulting in rigid contact between the vertebrae, increasing collision and wear, and deteriorating the intervertebral environment. In severe cases, the patient will lose the possibility of reoperation

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