Memory alloy artificial cervical intervertebral disc

Abstract

A memory alloy artificial cervical intervertebral disc comprises an artificial intervertebral disc body and a support plate sleeved with the artificial intervertebral disc body, wherein the artificial intervertebral disc body has conicity; drop preventing reverse stings are distributed on the upper and lower surfaces of the artificial intervertebral disc body; fixed branches are arranged at the two sides of the upper and lower surfaces; and drop preventing pawls are respectively arranged at the two ends at the inner side of each fixed branch. The intervertebral disc has simple process and shape, is easy to deform and insert, is stable in installation after complex, is convenient to use in operation, is secure and reliable in fixation, maintains the cervical vertebra motion range, reduces adjacent vertebral body complications, not only shortens the operation time and simplifies the operation, but also dispenses with bone removal and grafting, reduces more pains of the patient, maintains or increases the motion range of the vertebral articulations with lesions to some extent, avoids load of the adjacent vertebral articulations from increasing after fusion and fixation of the vertebral articulations with lesions, slows down degeneration of the adjacent vertebral articulations and realizes the aims of maintaining the movement functions and delaying and reducing secondary degeneration of the adjacent segments.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a memory alloy cervical artificial intervertebral disc used for implantation in vertebral bodies in surgery, orthopedics and spinal surgery. Background technique [0002] At present, the common cervical spine treatment methods include: cervical traction, collar, massage, acupuncture, block therapy, anterior cervical discectomy, intervertebral bone fusion, Bryan cervical artificial disc replacement surgery, etc. The above conservative treatments, There are problems in fusion surgery or artificial disc replacement surgery: cervical traction, physical therapy, collar, massage, acupuncture, block therapy, traditional Chinese medicine therapy, western medicine therapy and other treatments can relieve symptoms and cannot cure the root cause. Anterior cervical discectomy and intervertebral bone graft (iliac bone) fusion can generally relieve the patient's nerve compression and improve the...

AI Technical Summary

Problems solved by technology

[0002] At present, the common cervical spine treatment methods include: cervical traction, collar, massage, acupuncture, block therapy, anterior cervical discectomy, intervertebral bone fusion, Bryan cervical artificial disc replacement surgery, etc. The above conservative treatments, There are problems in fusion surgery or artificial disc replacement surgery: cervical traction, physical therapy, neck collar, massage, acupuncture, block therapy, traditional Chinese medicine therapy, western medicine therapy and other treatments can relieve symptoms and cannot cure the root cause

The artificial intervertebral disc is a round prosthesis of the same thickness, which does not conform to the physiological structure of the intervertebral disc, which is thick in the front and thin in the back. It needs to be pulled apart during the operation.

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