Glass manufacturing – Processes – Operating under inert or reducing conditions
Patent
1996-05-09
1997-12-16
Griffin, Steven P.
Glass manufacturing
Processes
Operating under inert or reducing conditions
65157, 422 23, 4332011, 623901, C03B 3200, A61L 214, A61C 800
Patent
active
056979975
ABSTRACT:
A method for preparing implant surfaces using gas discharge plasma including conveying the implants to a vacuum chamber. The implants are treated with an inert gas plasma to remove existing surface contamination and oxide layers from the implant surfaces. The implants are treated with an oxidizing plasma or by means of thermal oxidation to reoxidizing the implant surfaces. The implant treatment steps are carried out in a closed space, including a controlled atmosphere and produce a highly accurate and reproducible microstructure, composition, purity, and sterility in the implants.
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Patent Abstracts of Japan vol. 15, No. 126 (C-0817) 27 Mar. 1991 and JP-A-03 010 061 (Nissin Electric Co Ltd) 17 Jan. 1991 *Abstract*.
Biomaterial and implant surfaces: On the Role of Cleanliness, Contamination, and Preparation Procedures, Kasemo et al., J. Biomed. Mater. Res.: Applied Biomaterials, vol. 22, No. A2, 145-158 (1988).
Aronsson Bjorn-Owe
Johansson Patrik
Kasemo Bengt
Lausmaa Jukka
Griffin Steven P.
Nobel Biocare AB
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