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Acetabular cup prosthesis

An acetabular cup and prosthesis technology, applied in the field of acetabular cup prosthesis, can solve problems such as loss of hip joint pain and function, affecting the life of patients, etc., and achieve easy sensitivity to force stimulation, reduce stable stress shielding, and improve initial stability. Effect

Pending Publication Date: 2020-08-11
BEIJING CHUNLIZHENGDA MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, diseases such as osteoarthritis, rheumatoid arthritis, aseptic necrosis of the femoral head, traumatic arthritis, and congenital acetabular dysplasia can cause hip joint pain and loss of function, which seriously affects the lives of patients

Method used

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Embodiment Construction

[0021] In order to better understand the purpose, structure and function of the present invention, an acetabular cup prosthesis of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] figure 1 The structure of an acetabular cup prosthesis 100 according to an embodiment of the present invention is shown. Such as figure 1 As shown, the acetabular cup prosthesis 100 includes a prosthesis body 1 and a bone fusion layer 2 fitted and fixed on the outer surface of the prosthesis body 1, combined with figure 2 As shown, the bone fusion layer 2 includes: a glassy carbon matrix 21 structured as a three-dimensional structure, the glassy carbon matrix 21 includes a plurality of glassy carbon filaments 211 and a plurality of pores 212 formed by interlacing the plurality of glassy carbon filaments 211, The pores 212 are configured to communicate with each other and have different diameters; and the tantalum metal layer 22...

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Abstract

The invention belongs to the technical field of medical prostheses, and discloses an acetabular cup prosthesis. The acetabular cup prosthesis comprises a prosthesis body and a bone fusion layer whichis fixedly attached to the outer surface of the prosthesis body, wherein the bone fusion layer comprises a glassy carbon matrix which is constructed into a spatial three-dimensional structure, and a tantalum metal layer which is attached to the surface of the glassy carbon matrix; the glassy carbon matrix comprises a plurality of glassy carbon wires and a plurality of pores which are formed by connecting the plurality of glassy carbon wires in a staggered manner; and the pores communicate with one another and are different in diameter. The acetabular cup prosthesis has the advantages of facilitating bone ingrowth, providing relatively high friction force, reducing stress shielding and the like, so that the stability of the prosthesis after implantation is improved, and the phenomena of prosthesis loosening, dislocation, fracture and the like are reduced.

Description

technical field [0001] The invention belongs to the technical field of medical prosthesis, in particular to an acetabular cup prosthesis. Background technique [0002] The hip joint is one of the largest and most important joints in the human body, bearing a large portion of the body's body weight. However, diseases such as osteoarthritis, rheumatoid arthritis, aseptic necrosis of the femoral head, traumatic arthritis, and congenital acetabular dysplasia can cause hip joint pain and loss of function, which seriously affects the lives of patients . At present, artificial total hip replacement is the most successful method for treating end-stage hip diseases, and the acetabular cup prosthesis is an important part of the artificial total hip system. [0003] The acetabular cup prosthesis in the prior art is configured as a hemispherical structure. Since the surface of the acetabular cup prosthesis is usually in contact with the human acetabulum, in order to avoid the looseni...

Claims

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Application Information

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IPC IPC(8): A61F2/34A61F2/30
CPCA61F2/30771A61F2/34A61F2002/3079A61F2310/00574A61F2310/00544A61F2002/30024A61F2002/3483
Inventor 解凤宝史春宝候慧欣
Owner BEIJING CHUNLIZHENGDA MEDICAL INSTR
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