Wrist joint prosthesis

A wrist joint prosthesis and wrist joint technology, applied in the direction of ankle joints, joint implants, joint implants, etc., can solve the problems of not using artificial wrist joint prosthesis, and achieve strong dislocation resistance, stable structure, The effect of easy installation

Inactive Publication Date: 2015-05-13
BEIJING CHUNLIZHENGDA MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current treatment method mainly uses wrist fusion, but there is no artificial wrist prosthesis to replace joint motion

Method used

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  • Wrist joint prosthesis

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Embodiment Construction

[0017] In order to better understand the purpose, structure and function of the present invention, the wrist joint prosthesis of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0018] Such as figure 1 As shown, it is shown as the wrist joint prosthesis of the present invention, which is used for implanting in the injured wrist joint, including the wrist joint medullary needle 1 fixed on the site to be implanted, and the top movable sleeve of the wrist joint medullar needle 1 is provided with a wrist joint Lining head 2, the wrist joint lining head 2 is spherical, accommodated in the spherical groove on the wrist joint socket head 3, and can rotate in the groove of the wrist joint socket head 3, so that the wrist joint can be flexed and extended , extension, retraction and circular movement, patients implanted with wrist prosthesis can restore the original freedom of movement. It should be noted that in the prese...

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Abstract

The invention discloses a wrist joint prosthesis which is used for being implanted into a damaged wrist joint. The wrist joint prosthesis is characterized in that a wrist joint broach fixed to a part to be implanted is included, the top of the wrist joint broach is sleeved with wrist joint interfacing, and the wrist joint interfacing is spherical, is contained in a spherical groove in a wrist joint cotyla head and can rotate in the groove of the wrist joint cotyla head. By means of the wrist joint prosthesis, a limb can be protected, a wrist joint is recovered and can conduct the movements of bending, stretching, expanding, collecting and ring rotation, the physiology of the wrist joint is met, and a patient can freely move as before; the wrist joint prosthesis broach and the wrist joint interfacing are matched, and safety and flexibility are achieved. The wrist joint prosthesis has the advantages of being easy and convenient to install, stable in structure, high in dislocation resisting performance and the like.

Description

technical field [0001] The invention relates to an artificial joint prosthesis, in particular to a wrist joint prosthesis used for wrist joints. Background technique [0002] The wrist joint, also known as the radiocarpal joint, is a typical elliptical joint, with the proximal articular surfaces of the scaphoid, lunate, and triquetrum as the joint head, and the carpal articular surface of the radius and the articular disc below the ulnar head as the joints formed by a nest. [0003] The wrist joint is the most complex joint in the human body. Many diseases or traumas can cause chronic pain and loss of function of the wrist joint, such as rheumatoid arthritis, traumatic arthritis, osteoarthritis, septic arthritis, tumor wrist joint, etc. Current treatment methods mainly use wrist arthrodesis, but there is no artificial wrist prosthesis to replace joint mobility. Contents of the invention [0004] The object of the present invention is to provide a wrist joint prosthesis w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/42
Inventor 史春宝解凤宝张朝锋徐祥祥裴福兴
Owner BEIJING CHUNLIZHENGDA MEDICAL INSTR
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