The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7686843 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 30, 2010

Filed:

Apr. 07, 2006
Applicant:

Brian E. Moore, Sunnyvale, CA (US);

Inventor:

Brian E. Moore, Sunnyvale, CA (US);

Assignee:

Unison Therapeutics, Inc., Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 2/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

An expandable stent is fabricated from a plurality of radially undulating rings, each pair of adjacent radially expandable undulating rings being interconnected by a multiplicity of flex members. Each flex member contacts a portion of an apex on one ring at a circumferential location and a portion of an apex of a directly adjacent ring at a circumferentially offset location. Each flex member is expandable and in one embodiment is circumferentially S-shaped. Adjacent flex members are mirror images of each other. The resulting stent is both flexible and strong when expanded thereby providing good scaffolding. In one embodiment, the strut material is fabricated of shape memory alloy such that when the strut is compressed so as to be insertable into a vessel, the strut will automatically expand to its previous dimension upon rising to the temperature of the vessel in which it is placed, thereby to expand and hold open the vessel without need for a balloon catheter.


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