Wrist joint prosthesis

A wrist prosthesis and prosthesis technology, applied in the field of prosthesis, can solve problems such as limited wrist flexion or dorsiflexion range of motion

Active Publication Date: 2021-12-14
BEIJING AKEC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a wrist joint prosthesis to solve the problem of limited wrist flexion or dorsiflexion range of motion of some patients caused by the fixed inclination angle design of the radial joint facing the palm side in the related art

Method used

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include...

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Abstract

The invention provides a wrist joint prosthesis. The wrist joint prosthesis comprises: an articular surface prosthesis; a radius prosthesis which is connected with the first end of the articular surface prosthesis in an angle adjustable manner; an ulna prosthesis which is rotatably connected with the second end of the articular surface prosthesis; and an angle adjusting device which is arranged between the articular surface prosthesis and the radius prosthesis so as to adjust the angle between the radius prosthesis and the articular surface prosthesis. According to the technical scheme, the problem that the palm flexion or dorsal extension motion range of wrist joints of some patients is limited due to the inclination angle fixing design of the radius joint facing the palm side in the related technology can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of prostheses, in particular to a wrist joint prosthesis. Background technique [0002] Bone tumors of the distal radius and ulna are one of the common diseases in orthopedics. Surgical resection of the tumor segment is required. After surgical resection of the tumor segment, autologous fibula transplantation or artificial prosthesis are often used to reconstruct the structure of the wrist joint and restore the function of the wrist joint. . However, the current autologous fibula transplantation or wrist joint prosthesis can only reconstruct the distal radius, and if the tumor invades the ulna at the same time, the ulnar head should be resected. This method is feasible for cases where the tumor invades a small area . However, in the case of a large tumor invasion, large-scale bone defects will be caused after large-scale tumor resection. After resection of a large segment of the distal ulna, if no reconst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/42
CPCA61F2/4261A61F2002/30538
Inventor 马骏
Owner BEIJING AKEC MEDICAL
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