Artificial hip joint on bone trabecula microporous surface

A technology of trabecular bone and hip joints, applied in the field of artificial hip joints, can solve the problems of secondary surgical revision, trouble and pain of patients, etc., and achieve the effect of enhancing the fixation effect, prolonging the service life, and preventing loosening and sinking
CN101843533AInactive Publication Date: 2010-09-29徐英忱
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
徐英忱
Publication Date
2010-09-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an artificial hip joint on a bone trabecula microporous surface, which is designed for solving the problem of secondary operation repairing caused by later-period loose or sunk acetabulum or femoral stem existing in a traditional artificial hip joint. The artificial hip joint on a bone trabecula microporous surface comprises a femoral stem body, wherein a stem neck is arranged at the upper end of the femoral stem body and is in socket joint with an acetabulum liner, a femoral ball head is in socket joint outside the acetabulum liner, an acetabulum cup is in socket joint outside the femoral ball head, and a bone trabecula microporous layer is formed on at least one of the outer surfaces of the femoral stem body and the acetabulum cup. After the artificial hip joint is implanted into a human body, the artificial hip joint and natural bones can be integrally fixed to effectively enhance the fixation effect, prevent the artificial hip joint from loosening or sinking for a long time and prolong the service life.
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Description

technical field

[0001] The invention relates to an artificial hip joint, in particular to an artificial hip joint with a bone trabecular microporous layer on the surface used in surgical joint replacement operations, and belongs to the technical field of medical devices. Background technique

[0002] At present, artificial hip replacement surgery has become the only effective method commonly used in the medical field to treat disabling diseases of the hip joint. The fixing effect between them is the key to determine the service life of artificial joints. There are two commonly used fixation methods now, one is the bone cement fixation technique suitable for elderly patients, and the other is the biological fixation technique suitable for young patients. Among them, the general biological fixation technology forms a microporous surface layer on the acetabulum and femoral stem through methods such as sintering of small balls or titanium wire braiding to create conditions for ...

Claims

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