Method of coating medical devices and device coated thereby
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United States of America Patent
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Aug 6, 1996
Issued Date -
N/A
app pub date -
Feb 6, 1995
filing date -
Apr 23, 1993
priority date (Note) -
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Abstract
The invention features a method of depositing a coating on a medical device. The method includes: a) placing the medical device in an evacuated chamber, b) introducing a noble gas into the chamber, c) providing at least one target in the chamber, spaced from the device, and d) sputter depositing a coating onto the device by applying power to the target so that the noble gas forms a plasma in the vicinity of the target and material is sputtered from the target by ion bombardment and deposited on the device. In another aspect, the invention features a medical device having a coating deposited by a plasma sputtering process. Preferably, the coating is a calcium containing compound.
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