Knee joint prosthesis

A knee joint prosthesis and prosthesis technology, which is applied in the field of medical treatment, can solve the problems of low structural life of the prosthesis, improve safety and reliability, prolong life, and prevent damage to the human body

Inactive Publication Date: 2017-01-04
BEIJING AKEC MEDICAL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a kind of knee joint prosthesis, to solve the problem that the prosthesis structure in the prior art has a relatively low lifespan

Method used

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  • Knee joint prosthesis

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Embodiment Construction

[0021] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0022] This embodiment provides a kind of knee joint prosthesis, please refer to figure 1 , the knee joint prosthesis includes a prosthesis main body 10 , the prosthesis structure further includes a protective coating, and the protective coating is coated on the outer surface of the prosthesis main body 10 .

[0023] The knee joint prosthesis in the present invention includes a prosthesis body 10 and a protective coating coated on the prosthesis body 10. Since the protective coating is coated on the outer surface of the prosthesis body 10, the protective coating can wrap The living material is Ti 6 al 4 The outer surface of the prosthesis main body 10 of V alloy prevents the aseptic loosenin...

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Abstract

The invention provides a knee joint prosthesis. The knee joint prosthesis comprises a prosthesis body. The prosthesis structure further comprises a protection coating wrapping the outer surface of the prosthesis body. The knee joint prosthesis comprises the prosthesis body and the protection coating wrapping the prosthesis body, as the outer surface of the prosthesis body is coated with the protection coating, the protection coating can wrap the outer surface of the prosthesis body made of Ti6Al4V alloy, the situation of aseptic loosening of the prosthesis due to separation of Al and V ions can be avoided, and the service life of the prosthesis is prolonged; besides, damage of Al ions and V ions to the human body is avoided, and the use safety and reliability of the prosthesis are improved.

Description

technical field [0001] The invention relates to the field of medical treatment, in particular to a knee joint prosthesis. Background technique [0002] Ti 6 al 4 V alloy is widely used in the medical field because of its superior properties such as better biocompatibility, corrosion resistance, high strength, and elastic modulus similar to that of cortical bone. However, long-term use in the human environment will release Al and V ions. Al and V ions are toxic, carcinogenic and teratogenic to the human body. Moreover, Al can positively shift the surface potential of Ti, which will lead to the deposition of fibrin and form thrombus in the environment in contact with thrombus fluid. This reduces the safety and reliability of material use. [0003] At present, most of the hip joints and some knee joints are made of Ti 6 al 4 V alloy, and then do corresponding modification on the articular surface to increase its wear resistance and hardness. The bone interface does not ...

Claims

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Application Information

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IPC IPC(8): A61F2/38A61L27/30
CPCA61F2/38A61F2310/00023A61F2310/00544A61L27/30
Inventor 孟德松
Owner BEIJING AKEC MEDICAL
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