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Elbow joint prosthesis

An elbow joint and prosthesis technology, applied in the directions of elbow joints, prostheses, knee joints, etc., can solve the problems of poor mechanical fixation stability, so as to solve the problem of poor mechanical fixation stability, ensure the fixation effect, and improve the The effect of service life

Active Publication Date: 2018-02-02
BEIJING AKEC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide an elbow joint prosthesis to solve the problem of poor mechanical fixation stability of the elbow joint prosthesis in the prior art

Method used

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Embodiment Construction

[0032] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0033] Elbow joint prosthesis according to the embodiment of the present invention, such as figure 1 As shown, include: humeral prosthesis 10 and ulnar prosthesis 20, humeral prosthesis 10 and ulnar prosthesis 20 are mutually hinged; When the humeral prosthesis 10 is implanted into the humeral medullary cavity 90, the humeral prosthesis 10 is engaged and fixed with the inner wall of the humeral medullary cavity 90 through the strip ridge 30 thereon, and when the ulnar prosthesis 20 is implanted into the ulnar medullary cavity 100 The ulnar prosthesis 20 is engaged and fixed with the inner wall of the ulnar medullary canal 100 through the strip ridge 30 thereon.

[0034] The elbow joint prosth...

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Abstract

The invention provides an elbow joint prosthesis which comprises a humerus prosthesis and a ulna prosthesis. The humerus prosthesis and the ulna prosthesis are hinged to each other; strip-shaped ridges are arranged on the side wall of the humerus prosthesis and the side wall of the ulna prosthesis so that the humerus prosthesis can be connected with the inner wall of a humerus marrow cavity through the strip-shaped ridge on the humerus prosthesis and fixed when the humerus prosthesis is implanted into the humerus marrow cavity and the ulna prosthesis can be connected with the inner wall of a ulna marrow cavity through the strip-shaped ridge on the ulna prosthesis and fixed when the ulna prosthesis is implanted into the ulna marrow cavity. Therefore, the stability of initial fixing of the prosthesis can be greatly improved in an elbow joint plasty, the fixing effect in a long term is guaranteed, and the service life of the prosthesis is prolonged. The problem that the initial mechanicalfixing stability of an elbow joint prosthesis in the prior art is poor is solved.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to an elbow joint prosthesis. Background technique [0002] There are relatively few opportunities for inflammation to invade the elbow joint, but once the elbow joint is inflamed, it will affect the function of the upper limbs. Elbow arthroplasty is an effective way to treat elbow inflammation. Currently, elbow arthroplasty has evolved tremendously, from simple to complex anatomical elbow prostheses. Like other joint prosthesis replacement operations, infection and loosening of the prosthesis are the main reasons for the failure of the elbow arthroplasty prosthesis, so the stability of the prosthesis in the human body is an important factor affecting the service life of the prosthesis. [0003] At present, there are two types of prosthetic fixation in clinical practice: bone cement fixation and biological fixation. Biological fixation can preserve cancellous bone and reduce damag...

Claims

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Application Information

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IPC IPC(8): A61F2/38A61F2/46
CPCA61F2/3804A61F2/4601A61F2/4605A61F2/4614A61F2002/30329A61F2002/3822A61F2002/3831A61F2002/30433
Inventor 刘昆玺
Owner BEIJING AKEC MEDICAL
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