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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8877283 B1

PDFFull Text
Expired
Date of Patent:
Nov. 04, 2014

Filed:

Jul. 09, 2009

Method for preparing porous hydroxyapatite coatings by suspension plasma spraying

Applicants:

Fang Wu, Sichuan, CN;

Yi Huang, Sichuan, CN;

Lei Song, Sichuan, CN;

Xiaoguang Liu, Sichuan, CN;

Yanfeng Xiao, Sichuan, CN;

Jiamin Feng, Sichuan, CN;

Jiyong Chen, Sichuan, CN;

Inventors:

Fang Wu, Sichuan, CN;

Yi Huang, Sichuan, CN;

Lei Song, Sichuan, CN;

Xiaoguang Liu, Sichuan, CN;

Yanfeng Xiao, Sichuan, CN;

Jiamin Feng, Sichuan, CN;

Jiyong Chen, Sichuan, CN;

Assignee:

Si Chuan University, Chengdu, Sichuan, CN;

Attorney:

Caesar, Rivise, Bernstein, Cohen & Pokotilow, Ltd.

Primary Examiner:

Dah-Wei D Yuan

Assistant Examiner:

Andrew Bowman

Int. Cl.
CPC ...
A61L 33/00 (2006.01); A61L 27/32 (2006.01); C23C 4/12 (2006.01); C23C 4/10 (2006.01); A61L 27/56 (2006.01);
U.S. Cl.
CPC ...
A61L 27/32 (2013.01); C23C 4/127 (2013.01); C23C 4/105 (2013.01); A61L 27/56 (2013.01);
Abstract

The present invention relates to a preparation method for porous hydroxyapatite coatings. In particular, it is a method of using suspension plasma spraying to prepare porous hydroxyapatite coatings, which belongs to the technical field of biomedical material preparations. The present invention added a pore-forming agent into the hydroxyapatite suspension with a solid content of 16%-45%. After full stirring, the feedstock materials for plasma spraying were transferred into the injection system, and injected into the high temperature area of the central plasma flame. Then, the feedstock materials made the heat exchange with the high plasma flame of plasma spraying gun. Then the sprayed raw materials were subjected to breakup and refinement of the droplets, solvent evaporation, the decomposition and gasification of the pore-forming agent and melting of feedstock materials. Finally, the porous hydroxyapatite coatings are directly deposited onto the substrate surfaces of the biomedical materials.

Find Patent Forward Citations

Wu, Fang. (2014). Method for preparing porous hydroxyapatite coatings by suspension plasma spraying (U.S. Patent No. 8877283). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8877283

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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