Artificial elbow joint surface replacement prosthesis

A technology of elbow joint and articular surface, which is applied in the field of artificial elbow joint surface replacement prosthesis, can solve the problems of operation failure, high revision rate, loose prosthesis, etc., to reduce the probability of deep infection, increase the contact area, and keep the integrity sexual effect

Active Publication Date: 2016-06-08
WUHAN UNITED IMAGING HEALTHCARE SURGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing artificial elbow joint prosthesis is a total elbow joint replacement prosthesis. During the prosthetic replacement process, the soft tissue around the elbow joint will be extensively stripped, causing relatively large trauma. Osteotomy and marrow reaming are required during the operation, resulting in

Method used

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  • Artificial elbow joint surface replacement prosthesis

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Embodiment Construction

[0017] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0018] like figure 1 As shown, an artificial elbow joint surface replacement prosthesis according to an embodiment of the present invention includes: a prosthesis part 1 that matches the shape of the distal end of the humerus and is placed on the distal end of the humerus, and is connected with the prosthesis part 1 and fixed on The internal fixation plate 2 and the external fixation plate 3 of the humerus medial column and the humerus lateral column.

[0019] The prosthesis part 1 is a hollow cylindrical structure. The external shape of the prosthesis part 1 is the same as that of the articular surface of the distal end of the humerus, and the external contact surface...

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Abstract

The invention discloses an artificial elbow joint surface replacement prosthesis. The prosthesis comprises a prosthesis part matched in shape with distal humerus and mounted at the distal humerus, as well as an internal fixed steel plate and an external fixed steel plate which are connected with the prosthesis part and fixed to an inner side column and an outer side column of the humerus respectively, wherein the prosthesis part adopts a hollow cylinder-like structure; the external shape of the prosthesis part is the same as the joint surface shape of the distal humerus; the external contact surface of the prosthesis part is a smooth coating surface and is in contact with the joint surface of proximal ulna; and a first connecting part and a second connecting part are arranged at one end, connected with the prosthesis part, of the inner fixed steel plate and positioned in two perpendicular planes respectively. According to the prosthesis, the bone mass loss caused by operations of wide-range dissection of soft tissues around elbow joint, osteotomy, marrow expansion and the like in a prosthesis replacement process can be avoided, the prosthesis loose of an insertion-type prosthesis can be avoided, and the incidence rate of deep infection caused by intramedullary operation can be reduced.

Description

technical field [0001] The invention relates to the technical field of artificial elbow joint prosthesis, in particular to an artificial elbow joint surface replacement prosthesis. Background technique [0002] The elbow joint is a complex joint in the human body, and its biological functions of flexion, extension and rotation are of great significance to human activities. Elbow joint prosthesis replacement is suitable for severe damage to the joint structure, and the limited surgery that preserves the autologous tissue structure is difficult to achieve the ideal correction effect. The design of the elbow joint prosthesis must take into account the functional anatomy and biomechanics of the elbow. Chinese patents CN1121847C, CN2659380Y and CN201879868U disclose artificial prostheses of several elbow joints respectively. These types of prosthesis mainly include the humeral component and the ulnar component. The above-mentioned components are composed of a stem part and a joi...

Claims

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Application Information

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IPC IPC(8): A61F2/38A61F2/30
CPCA61F2/30749A61F2/30767A61F2/3804A61F2002/30003A61F2002/30224A61F2002/30329A61F2002/3809A61F2002/3822
Inventor 范存义刘珅王伟郁诗阳黎之惟
Owner WUHAN UNITED IMAGING HEALTHCARE SURGICAL TECH CO LTD
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