Implantable expandable medical devices having regions of...

Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arterial prosthesis – Stent structure

Reexamination Certificate

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C623S001190

Reexamination Certificate

active

06923829

ABSTRACT:
An implantable expandable medical device in which selected regions of the device are in a martensite phase and selected regions are in an austenite phase. The martensitic regions exhibit pseudoplastic behavior in vivo and may be deformed without recovery under in vivo body conditions. In contrast the austenitic regions exhibit superelastic behavior in vivo and will recover their pre-programmed configuration upon deformation or release of an applied strain

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