Preparation method of hydroxyapatite bioactive coating doped with trace elements

A technology of trace element hydroxyapatite and hydroxyapatite, applied in the direction of coating, etc., can solve the problems of unsuitability for industrial production, cumbersome preparation process, thin coating thickness, etc., to ensure chemical uniformity and improve biological activity , the effect of high deposition efficiency
CN101837147AInactive Publication Date: 2010-09-22SICHUAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SICHUAN UNIV
Publication Date
2010-09-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of biomedical composite materials, in particular to a preparation method of a hydroxyapatite bioactive bionic coating containing trace elements. The method comprises the following steps of: firstly, reacting raw materials for preparing hydroxyapatite containing the trace elements according to the proportion at a certain temperature to obtain a suspension; and then transmitting the suspension as a precursor liquid to a high-temperature area of plasma flame and directly spraying the suspension on a biomedical metal substrate to form the hydroxyapatite coating containing the trace elements. The invention has simple process and low production cost; and the obtained hydroxyapatite coating contains the trace elements such as silicon, magnesium and the like closer to human bony bionic components and has better osteogenesis capability and important application value.
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Description

technical field

[0001] The invention belongs to the field of biomedical materials, and in particular relates to a method for preparing a hydroxyapatite coating doped with trace elements. Background technique

[0002] Hydroxyapatite (Ca 10 (PO 4 ) 6 (OH) 2 ), is the most important inorganic component of bones and teeth, has good bioactivity and biocompatibility, and is widely used in the repair of bone and other hard tissues. Traditional hydroxyapatite ceramics are prepared by sintering, and the resulting block is brittle and has low toughness, which is not enough to meet the requirements of clinical applications. Using biomedical metal as the substrate, the hydroxyapatite coating prepared by powder plasma spraying combines the good biological activity of hydroxyapatite and the excellent mechanical properties of biomedical metal, which improves the clinical application of hydroxyapatite. on the application. Although this hydroxyapatite coating has good biocompatibility ...

Claims

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