Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis
Patent
1995-04-06
1998-04-07
Brittingham, Debra S.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
623 1, A61F 202, A61F 204
Patent
active
057358966
ABSTRACT:
A method of producing a biocompatible prosthesis based on a substrate made essentially of metal or ceramic. The substrate is placed into a reactor chamber of a cathodic vapor deposition arrangement and the chamber is evacuated to a predetermined pressure. A predetermined, negative bias voltage is then applied to the substrate and the substrate is surface treated by adding an etching gas to the reactor chamber, at a predetermined, first flow rate and coupling in a high frequency power with a first, predetermined power density for ionic etching for a first, predetermined period of time. The surface treated substrate is separated from the negative bias voltage and a semiconductor cover layer is chemical vapor-phase deposited on the substrate by adding to the reactor chamber a multi-component mixture of process gases containing a semiconductor element in bound format a second, predetermined flow rate and coupling-in of HF power with a predetermined, second power density, for a second, predetermined time period.
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Boltz, A. et al, "New Coating Materials for Artificial Heart Valves", Images of the Twenty-First Century, Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society (Cat. No. 89CH2770-6), Seattle, WA, 9-12 Nov. 1989, Bd. 11, 1989, New York, NY, IEE, pps. 164-166.
Amon Michael
Bolz Armin
Biotronik
Brittingham Debra S.
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