Bone defect repair system for wrist joint

A technology for repairing system and bone defects, applied in the direction of wrist joint, ankle joint, joint implants, etc., can solve the problems of inapplicable and incomplete restoration of wrist joint function and range of motion

Pending Publication Date: 2021-07-06
PEKING UNIV THIRD HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the wrist prosthesis on the market is a conventional prosthesis, which is generally a ball-and-socket structure. This kind of prosthesis only relies on the ball-and-socket structure to maintain stability, and needs to fuse the pr...

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  • Bone defect repair system for wrist joint
  • Bone defect repair system for wrist joint
  • Bone defect repair system for wrist joint

Examples

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Embodiment Construction

[0032] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way serves as any limitation of the application, its application or uses.

[0034] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, techniques, methods and devices should be considered part of the description.

[0035] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment m...

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Abstract

The invention discloses a bone defect repair system for a wrist joint. The bone defect repair system comprises a distal radius prosthesis and a radius articular surface prosthesis; the first end of the body of the distal radius prosthesis is provided with a plate-shaped radius setting part extending in the long axis direction of the body of the distal radius prosthesis; the radius setting part is provided with a plurality of radius connecting holes, and the end part of the second end of the body of the distal radius prosthesis is provided with a first limiting groove; the first end of the radius articular surface prosthesis is provided with a protruding first limiting block, and the first limiting block is installed in the first limiting groove; and the second end face of the radius articular surface prosthesis is a radius articular surface. The radius articular surface and a metacarpal bone jointly form a wrist joint part corresponding to the radius, the geometrical shape of the wrist joint part is the same as the geometrical shape of the articular surface of an anatomical wrist joint, and therefore the function and the range of motion of the wrist joint can be recovered.

Description

technical field [0001] The present application relates to the technical field of medical devices, and more specifically, relates to a wrist bone defect repair system. Background technique [0002] The wrist joint, also known as the radiocarpal joint, is a typical elliptical joint. The wrist joint is composed of the proximal articular surfaces of the scaphoid, lunate, and triquetrum of the hand as the articular head, and the carpal articular surface of the radius and the articular disc below the ulnar head as the joint socket. The radius and ulna are the two bones of the forearm, and the radius is located on the outside of the forearm, on the side of the thumb. The ulna is located on the inside of the forearm, on the side of the little finger. [0003] Bone defects in the wrist joints caused by infection, trauma, arthritis, rheumatism, or tumors seriously affect the patient's ability to work and quality of life. At present, the wrist prosthesis on the market is a conventio...

Claims

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Application Information

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IPC IPC(8): A61F2/42
CPCA61F2/4261A61F2002/2835A61F2002/2871A61F2002/2896A61F2002/30011A61F2002/4264A61F2002/4266
Inventor 田耘仇长东刘冰川侯国进祝腾蛟
Owner PEKING UNIV THIRD HOSPITAL
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