Title:
METHOD FOR FIXING HYDROXYAPATITE TO TITANIUM METAL SUBSTRATE, AND HYDROXYAPATITE-COATED METAL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2020/209278
Kind Code:
A1
Abstract:
In the present invention, a titanium metal substrate formed from pure titanium or a titanium alloy is subjected to a surface roughening treatment such that that surface roughness Ra thereof reaches 1.6-4.0μm, HAp powder is adhered to the entire surface or a part of the surface of the surface-roughened titanium metal substrate at a prescribed ratio, and the HAp powder is sintered to the surface of the metal substrate by retaining the titanium metal substrate, to which the HAp powder has been adhered, at a prescribed sintering temperature for 3-11 hours in an atmospheric, nitrogen gas, argon gas, oxygen gas or carbon dioxide gas atmosphere.
Inventors:
SHIRAISHI KOHEI (JP)
SAGARA SHUSAKU (JP)
TODA TAKUO (JP)
SAGARA SHUSAKU (JP)
TODA TAKUO (JP)
Application Number:
PCT/JP2020/015782
Publication Date:
October 15, 2020
Filing Date:
April 08, 2020
Export Citation:
Assignee:
CASTEM CO LTD (JP)
International Classes:
C23C24/08; A61L27/04; A61L27/30; A61L27/40
Foreign References:
| KR20090083525A | 2009-08-04 | |||
| CN102059209A | 2011-05-18 | |||
| JP2007075486A | 2007-03-29 | |||
| JP2007075485A | 2007-03-29 | |||
| JP2019074248A | 2019-05-16 | |||
| JP2009067669A | 2009-04-02 |
Other References:
HWANG, K.E ET AL.: "Interface characteristics changed by heat treatment of Ti materials with hydroxyapatite", MATERIALS SCIENCE & ENGINEERING C, vol. 23, no. 3, 2003, pages 401 - 405, XP55749902, ISSN: 0928-4931
See also references of EP 3926073A4
See also references of EP 3926073A4
Attorney, Agent or Firm:
SUDA, Masayoshi (JP)
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