Improved artificial knee joint femoral prosthesis with porous film and preparation method thereof

A technology for artificial knee joints and femoral prostheses, applied in the direction of knee joints, prostheses, elbow joints, etc., can solve problems such as fracture and easy loosening, achieve strength and mechanical properties, and facilitate bone attachment and bone ingrowth Effect

Inactive Publication Date: 2015-12-02
SHENZHEN YIHEPING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide an improved femoral prosthesis of artificial knee joint. On the premise of ensuring mechanical properties and mechanical strength, the most suitable aperture for bone atta...

Method used

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  • Improved artificial knee joint femoral prosthesis with porous film and preparation method thereof

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Embodiment Construction

[0013] Such as figure 1 As shown, the present invention provides an artificial knee femoral prosthesis, which is made by casting or forging. Then build a model of the porous thin layer with the most suitable pore size (for example, 200 microns) in the computer, and then melt the medical metal powder by laser or high-energy electron beam to obtain the required porous thin layer on the artificial knee femoral prosthesis.

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Abstract

The invention relates to an improved artificial knee joint femoral prosthesis which is characterized in that the improved artificial knee joint femoral prosthesis is cast or forged, and then a porous medical metal film is formed on the corresponding surface, being in contact with a bone of a patient, of the femoral prosthesis through additive manufacturing. The strength and mechanical properties of the femoral prosthesis are guaranteed by casting and forging, and then the optimal aperture is customized for the porous film through the additive manufacturing, so that bone attachment or bone ingrowth can be facilitated to the maximum. The improved artificial knee joint femoral prosthesis is suitable for a bone joint replacement surgery for human knee joint lesions.

Description

technical field [0001] The invention relates to an artificial joint in the field of medical bone joints, in particular to an improved artificial knee joint femoral prosthesis. Background technique [0002] The femoral prosthesis of the artificial knee joint is a human implant, which is used as a replacement for the femur end of the human body when the disease of the human knee joint requires orthopedic replacement surgery, so that the patient can restore the physiological function of the knee joint to a certain extent, relieve pain, improve Exercise and improving quality of life. [0003] In the existing technology, artificial knee joint femoral prosthesis can be made by casting or forging, and then a porous thin layer is formed on the surface of the femoral prosthesis by sandblasting, or hydroxyapatite or titanium is thermally sprayed on the surface of the femoral prosthesis A porous thin layer is formed; the artificial knee joint femoral prosthesis and the surface porous ...

Claims

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Application Information

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IPC IPC(8): A61F2/38A61L27/30A61L27/56
Inventor 不公告发明人
Owner SHENZHEN YIHEPING
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