Title:
METHOD FOR PREPARING TITANIUM-CONTAINING IMPLANT BY USING ENVIRONMENTALLY-FRIENDLY ETCHING COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2015/147473
Kind Code:
A1
Abstract:
The present invention relates to: a method for preparing an implant, comprising the steps of preparing a mixture etching composition containing hydrogen peroxide and a water-soluble carbonate compound, and oxidatively etching an implant, which is made from titanium or a titanium alloy, by immersing the same in the etching composition; a titanium or titanium alloy implant prepared by being oxidatively etched with a mixture etching composition containing hydrogen peroxide and a water-soluble carbonate compound; and a composition for surface-treating an implant, containing hydrogen peroxide and a water-soluble carbonate compound. In addition, the present invention relates to: a titanium or titanium alloy implant which is prepared by being oxidatively etched with an etching composition containing hydrogen peroxide and a basic solution and in which irregularities of an open channel structure having the shape of a continuous or discontinuous nanoscale line are formed on the surface thereof; and a preparation method therefor. The surface of a titanium alloy treated by using the mixture etching composition containing hydrogen peroxide and a carbonate compound or the etching composition containing hydrogen peroxide and a basic solution of the present invention comprises micrometer-sized irregularities and channel-shaped nanometer-sized irregularities, and thus has an increased surface area, can have improved wettability and can effectively promote cell proliferation and osteocyte differentiation. In addition, the composition is environmentally friendly since no chemical compounds such as a strong acid are contained, and biocompatibility can be improved since such materials can be prevented from remaining on the surface, and thus the composition can be useful for implant surface treatment.
Inventors:
KIM KYO HAN (KR)
KWON TAE YUB (KR)
SON JUN SIK (KR)
KWON TAE YUB (KR)
SON JUN SIK (KR)
Application Number:
PCT/KR2015/002604
Publication Date:
October 01, 2015
Filing Date:
March 18, 2015
Export Citation:
Assignee:
KYUNGPOOK NAT UNIV IND ACAD (KR)
International Classes:
A61L27/06; A61L27/36
Foreign References:
| US20090204213A1 | 2009-08-13 | |||
| US20110233169A1 | 2011-09-29 | |||
| US20120129129A1 | 2012-05-24 | |||
| US7883661B2 | 2011-02-08 |
Other References:
FENG ZHANG ET AL.: "Effect of heat treatment on H2O2/HCl etched pure titanium dental implant: An in vitro study", MEDICAL SCIENCE MONITOR, vol. 18, 1 July 2012 (2012-07-01), pages 265 - 272, XP055227209
See also references of EP 3124056A4
See also references of EP 3124056A4
Attorney, Agent or Firm:
SON, MIN (KR)
손민 (KR)
손민 (KR)
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