A magnetic joint prosthesis

Abstract

The invention provides a magnetic joint prosthesis, which comprises remote and near end joint components respectively arranged on small joint adjacent bone structures of the hand and the foot, wherein the remote end joint components comprise first support elements, a first handle element and a first support surface, the first support elements are respectively arranged at the two ends, the near end joint components comprise second support elements, a second handle element and a second support surface, the second support elements are respectively arranged at the two ends, a first combining part and a second combining part are respectively arranged on the remote and near end joint components, are made of magnetic materials and are mutually attracted through magnetism, and the joint stabilizing and holding effects are achieved. According to the technical scheme, small joint prostheses are combined and fixed through the magnetism, good stability is realized, and the structure is not like a split joint which is complicated in surgical operation since the split joint completely maintains the stability through peripheral soft tissue rebuilding. The magnetic joint prosthesis has the advantages that the design is ingenious, the structure is simple, the magnetic joint prosthesis can be designed and applied in various kinds of small joints of the hand and the foot, and in addition, the operation is easy.

Description

technical field [0001] The invention relates to a joint prosthesis, in particular to a magnetic joint prosthesis which is especially suitable for hand and foot joints. Background technique [0002] Artificial joint is an artificial organ designed by people to save joints that have lost their function. There are many small joints in the hands and feet of the human body, and the lesions of these small joints of the hands and feet are common clinical diseases, including osteoarthritis, rheumatoid arthritis and traumatic arthritis, which can involve DIP (distal joints) Interphalangeal joint), PIP (middle interphalangeal joint) and MP (metacarpophalangeal joint) among many others. In particular, rheumatoid hands and feet often cause serious deformities. Among them, the treatment method of artificial facet joint prosthesis replacement is an important method that can preserve the function and mechanical function of finger joints. [0003] There are many forms of artificial facet...

AI Technical Summary

Problems solved by technology

Although the hinged prosthesis is more stable, the prosthesis is easy to loosen after a long time of use, and the life of the prosthesis is short; the split prosthesis requires higher installation skills, especially for patients with rheumatoid arthritis. The body often needs more precise soft tissue balance, otherwise the split type prosthesis is easy to dislocate after operation, resulting in the failure of the operation

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