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Improved artificial knee joint tibial tray with porous film and preparation method thereof

A technology for artificial knee joints and tibial discs, applied in the direction of knee joints, elbow joints, joint implants, etc., can solve problems such as easy loosening and fracture, ensure 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

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an improved artificial knee tibial tray, which can customize the most suitable porosity for bone attachment and bone ingrowth for the tibial tray under the premise of ensuring mechanical properties and mechanical strength, and overcome the existing artificial knee joint Defects of easy loosening and possible fracture after tibial tray implantation

Method used

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  • Improved artificial knee joint tibial tray with porous film and preparation method thereof

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Embodiment Construction

[0013] like figure 1 As shown, the present invention provides an artificial knee tibial tray made by casting or forging. Then build a porous thin layer model with the most suitable porosity (for example, 40%) 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 tibial tray of the artificial knee joint.

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Abstract

The invention relates to an improved artificial knee joint tibial tray which is characterized in that the improved artificial knee joint tibial tray 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 tibial tray through the additive manufacturing. The strength and mechanical properties of the tibial tray are guaranteed by casting and forging, and then the optimal porosity 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 tibial tray 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 tibial tray of an artificial knee joint. Background technique [0002] The artificial knee tibial tray is a human implant, which is used as a replacement implanted on the tibial 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, and improve movement. and improve quality of life. [0003] In the prior art, the artificial knee tibial tray can be made by casting or forging, and then a porous thin layer is formed on the surface of the tibial tray by sandblasting, or a porous thin layer is formed on the surface of the tibial tray by thermal spraying of hydroxyapatite or titanium. It can also be made into an artificial knee joint tibial tray and a porous thin layer on the surface throug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/38A61L27/30A61L27/56
Inventor 不公告发明人
Owner SHENZHEN YIHEPING
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