External acetabulum cup and hip joint prosthesis including the same

An acetabular and cup technology, which is applied in the direction of hip joints, prostheses, acetabular recesses, etc., can solve the problems of small bone ingrowth area of ​​the acetabular cup, high loosening rate of the acetabular cup, and short service life. , to achieve good pressure stability, increase service life, and increase the effect of contact area
CN110420076APending Publication Date: 2019-11-08TIANJIN ZHENGTIAN MEDICAL INSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN ZHENGTIAN MEDICAL INSTR CO LTD
Publication Date
2019-11-08

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Abstract

The invention provides an external acetabulum cup and a hip joint prosthesis including the same. The external acetabulum cup includes a cup body, the cup body is provided with an external surface andan internal surface connected with the external surface, the cup body is provided with a central hole and a mounting hole which extend from the external surface to the internal surface, and the external surface of the cup body is provided with a groove around the mounting hole. The contact area of the external acetabulum cup and a fossa acetabuli is obviously increased, initial fixation and compression stability are good, long-term bone in-growth is facilitated, and the service life of the external acetabulum cup is improved.
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Description

technical field

[0001] The invention belongs to the technical field of surgical implants, and relates to an acetabular outer cup and a hip joint prosthesis containing the same. Background technique

[0002] In surgical medical operations, artificial joint replacement is used to replace and repair damaged natural joints, so as to restore their physiological functions and relieve pain for patients. Artificial joint replacement surgery is an effective treatment method, which has become more and more widely used in recent years. However, whether the joint prosthesis implanted in the human body can be stable for a long time is the key to improving the service life and efficacy of the joint prosthesis, and it is also a subject of great concern and continuous research and discussion.

[0003] The acetabular cup is part of the acetabular prosthesis. During surgery, the acetabular cup is inserted into the body. The acetabular outer cup is in contact with the cancellous bone in the ...

Claims

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