Acetabular component prosthesis

Abstract

The invention discloses an acetabular component prosthesis which comprises an acetabula cup. The acetabula cup is formed with metal powder through 3D printing and comprises a first compact part and a first microporous part. The first microporous part wraps the outer side of the first compact part. A first microporous layer, a second microporous layer and a third microporous layer which have gradually increased porosity are sequentially formed in the first microporous part from inside to outside. The acetabula cup is of a hemispherical structure. A cavity is formed in the first compact part. First through holes are formed in the hemispherical surface of the acetabula cup. Second through holes are formed in one end face of the first compact part. Second through holes are circumferentially distributed in the end face of the first compact part. The acetabular component prosthesis has the advantages that good bone engagement and ingrowth are kept, the strength of a combination part is high, cleaning and disinfection are convenient, and human bodies have no anaphylaxis.

Description

technical field [0001] The invention relates to a prosthesis similar to human bone joints, in particular to an acetabular component prosthesis. Background technique [0002] Artificial hip replacement refers to a prosthesis similar to human bone joints made of metal materials with good biocompatibility and mechanical properties. The artificial joint is replaced by surgical methods on the articular surface destroyed by disease or injury, and the lesion is removed. , remove pain, restore joint activity and original function. [0003] In the acetabular component, it usually includes the acetabular cup, the first wedge, the acetabular reinforcement block and the second wedge. The material is usually metal material. The manufacturing method is to use metal powder for rapid prototyping to facilitate bone ingrowth. The product is Full-porosity or single-layer porous materials, single-layer porous materials are combined with a dense part and a single-layer void part. The defects of...

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Problems solved by technology

[0003] In the acetabular component, it usually includes the acetabular cup, the first wedge, the acetabular reinforcement block and the second wedge. The material is usually metal material. The manufacturing method is to use metal powder for rapid prototyping to facilitate bone ingrowth. The product is Full-porosity or single-layer porous materials, single-layer porous materials are combined with a dense part and a single-layer void part. The defects of the above materials are: first, it is inconvenient to clean; second, metal debris may be produced, and if it enters the human body, it may Allergic reactions will occur; third, full-porous materials or single-layer porous materials will affect the strength of the product

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