Artificial joint material

A technology for artificial joints and joints, used in medical science, tissue regeneration, prostheses, etc., can solve the problems of unsatisfactory level, insufficient strength of porous titanium materials, affecting strength properties, etc., to improve long-term stability and good biological phase. Capacitance, the effect of reducing the coefficient of friction

Inactive Publication Date: 2017-08-11
郑超
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Problems solved by technology

However, there are still deficiencies, because the existence of pores in porous titanium materials will affect its strength performance, if the porosity of porous titanium materials is far from the role of stabilizing artificial prosthesis and host bone tissue under the condition of ensuring its strength requirements not to a satisfactory level, and the strength of the porous titanium material is insufficient if its porosity is increased

Method used

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  • Artificial joint material

Examples

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Embodiment Construction

[0019] The technical solution of the present invention is described in detail below through the examples, and the following examples are only exemplary and can only be used to explain and illustrate the technical solution of the present invention, rather than being interpreted as a limitation to the technical solution of the present invention.

[0020] First, the titanium alloy used in the present invention was prepared, and its composition and strength obtained by testing are shown in Table 1.

[0021] Table 1 List of titanium alloy components

[0022] Sample No. Al V Cu Nd Tensile strength (MPa) 1 5.1 3.8 5.4 0.8 1065 2 5.0 4.1 4.5 1.1 1153 3 5.0 3.9 4.1 0.5 1078 4 5.1 4.0 3.2 0.3 1027 P1 5.0 4.1 6 0.7 985 P2 5.1 3.9 3.5 0.1 958 P3 5.1 4.0 - - 910

[0023] It can be seen that the tensile strength of the titanium alloy of the present invention exceeds that of Ti-6Al-4V. It is worth noting tha...

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Abstract

The invention provides an artificial joint material which is divided into a joint friction contact surface, a joint main body and a joint and human body contact surface. The three parts are formed by materials made of different ingredients. The joint friction contact surface is formed by a composite material of ceramic particles and titanium alloy. The joint main body is formed by titanium alloy. The joint and human body contact surface is formed by titanium alloy and degradable magnesium alloy. The joint friction contact surface is formed by using the composite material of the ceramic particles and the titanium alloy to improve abrasion resistance characteristics of an artificial joint; and by using the titanium alloy and degradable magnesium alloy, the surface in contact with the human body is formed to improve interfacial stability between the artificial joint and host bone tissues.

Description

technical field [0001] The invention relates to an artificial joint material, in particular to a composite artificial joint material with gradient composition, which is used for improving the biological fixation between the artificial joint and the host bone tissue and the service life of the artificial joint, and belongs to the technical field of medical materials. Background technique [0002] Artificial joint replacement is currently the most effective method for treating diseases such as osteoarthritis. The artificial joint has been in service for a long time in the body (more than 10 years, and may even reach more than 30 years), and the relative frictional movement of the head-socket structure can reach several Tens of millions of times, the wear caused by friction will not only change the size of the head-socket structure, but the main hazard is that various wear debris generated during the wear process will lead to inflammation and prosthesis failure. At present, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/06A61L27/04A61L27/10A61L27/50
CPCA61L27/04A61L27/06A61L27/10A61L27/50A61L2430/24
Inventor 张文平
Owner 郑超
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