Medical devices, particularly stents, and methods for their manufacture
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United States of America Patent
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N/A
Issued Date -
Jul 18, 2002
app pub date -
Jan 16, 2001
filing date -
Jan 16, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A medical device which includes a component formed from an alloy which contains at least about 40% Ni by weight. The alloy in a 10 nm deep surface region of the component contains not more than about 10% Ni by weight. The Ni content in that surface region can be reduced by polishing and oxidizing treatment such as (a) exposure to superheated steam, or (b) immersion in a chemical solution, or (c) an electrochemical treatment, using the device as the anode in a solution bath with a current running therethrough.
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