Novel hip joint prosthesis

Abstract

The invention discloses a novel hip joint prosthesis which is composed of an overhauled acetabular cup. The overhauled acetabular cup is composed of two parts, namely, the micropore structure part and the solid structure part, and the micropore structure part of the overhauled acetabular cup and the acetabular fossa of the human body are in direct contact; the overhauled acetabular cup is of a hemispheric structure, the micropore structure part is arranged on the hemispheric outer surface of the overhauled acetabular cup, the solid structure part is arranged on the inner surface of the overhauled acetabular cup, and three to twelve through holes are formed in the hemispheric structure. The novel hip joint prosthesis has the advantages that the novel hip joint prosthesis can keep the good bone ingrowth pore structure, the strength of a product can also be guaranteed, and cleaning is easy; the micropore structure with the thickness being 1.5 mm is designed on the work surface of the novel hip joint prosthesis, the rest is solid, the thickness of the pore structure is only 1.5 mm, and few challenges are brought to cleaning and disinfection; meanwhile, due to the fact that the thickness of the pore structure is greatly reduced, when screws are implanted, the probability of generating scraps is greatly reduced.

Description

technical field [0001] The invention relates to a prosthesis similar to human bone joints, in particular to a novel hip joint 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. It is to remove the lesion, remove the pain, and restore the activity and original function of the joint. Artificial joint replacement has the advantages of better joint movement, early mobility, and reduced complications of long-term bed rest for elderly patients. In developed countries in Europe and the United States, artificial joint replacement surgery has become one of the most common operations. In recent years, the development of hip replacement in China is also very fast. [0003] Artificial hip joint products are generally composed of fo...

AI Technical Summary

Problems solved by technology

First, the product is a sterile packaged medical device. It is very difficult to clean and disinfect a full-porous product because it is made of metal powder during production.

A typical metal wedge thickness is 10mm-30mm, which brings great challenges to cleaning

Second, it can be seen that these products are used in conjunction with metal bone screws, so when the metal bone screws are drilled into the nail holes on these products, it is inevitable that they will touch or squeeze the hole wall, which may produce metal debris and affect The service life of the product, if it enters the human body, it may cause an allergic reaction

Third, fully porous materials affect the strength of the product

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