Expandable stents and method for making same

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

Reexamination Certificate

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Reexamination Certificate

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06908479

ABSTRACT:
The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.

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