Method for providing radiopaque nitinol alloys for medical devices

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United States of America Patent

PATENT NO 7918011
APP PUB NO 20080027532A1
SERIAL NO

11870262

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Abstract

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A radiopaque nitinol medical device such as a stent for use with or implantation in a body lumen is disclosed. The stent is made from a superelastic alloy such as nickel-titanium or nitinol, and includes a ternary element selected from the group of chemical elements consisting of iridium, platinum, gold, rhenium, tungsten, palladium, rhodium, tantalum, silver, ruthenium, or hafnium. The added ternary element improves the radiopacity of the nitinol stent comparable to that of a stainless steel stent of the same and strut pattern coated with a thin layer of gold. The nitinol stent has improved radioplacity yet retains its superelastic and shape memory behavior and further maintains a thin strut/wall thickness for high flexibility.

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Patent Owner(s)

  • ABBOTT CARDIOVASCULAR SYSTEMS INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boylan, John F Murrietta, US 46 3174
Cox, Daniel L Palo Alto, US 82 5916

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