Wrist joint prosthesis

A wrist joint prosthesis and prosthesis technology, applied in the direction of wrist joints, ankle joints, joint implants, etc., can solve problems such as the inability to realize the circular movement function of the radiocarpal joint
CN112294500APending Publication Date: 2021-02-02苏州微创感动赋能医疗科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
苏州微创感动赋能医疗科技有限公司
Publication Date
2021-02-02

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Abstract

The invention provides a wrist joint prosthesis. The wrist joint prosthesis comprises a carpal prosthesis and a radius prosthesis, wherein the carpal prosthesis is provided with a first curved surface, the radius prosthesis is provided with a second curved surface matched with the first curved surface in shape, and the carpal prosthesis and the radius prosthesis are connected in an abutting mode in the first direction through the first curved surface and the second curved surface. The carpal prosthesis is configured to be rotatable relative to the radius prosthesis around a second direction and a third direction which are perpendicular to the first direction, and one end used for being connected with carpal, of the carpal prosthesis is rotatable relative to one end used for being connectedwith the radius, of the radius prosthesis around the first direction. According to the configuration, one end used for being connected with carpal, of the wrist joint prosthesis is configured to rotate around the first direction relative to one end used for being connected with the carpal, of the radius prosthesis, so that the wrist joint prosthesis can achieve the circling motion function of a radial wrist joint, the wrist joint mobility of a patient is improved, and the satisfaction degree of the patient is increased.
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Description

Technical field

[0001] The invention relates to the technical field of orthopedic tools, in particular to a wrist joint prosthesis.Background technique

[0002] The wrist joint is one of the most flexible and important joints in the human body. For the treatment of traumatic, degenerative wrist arthritis, severely damaged rheumatoid arthritis and other diseases, most of the previous treatments have been wrist fusion. Mainly, with the development of medicine and technology and patients eagerly hope to be able to solve pain while retaining the mobility of their wrist joints, total wrist joint replacement surgery is increasingly used in wrist joint treatment. At present, wrist prosthesis has developed to a non-restrictive full wrist prosthesis, which can achieve palm flexion, dorsal extension, ulnar deviation, and radial deviation. However, the current wrist prosthesis cannot achieve the radial carpal joint rotation. Movement function.Summary of the invention

[0003] The purpose of the present ...

Claims

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