Teresa Santana Vazquez

US Patent:

20070073380, Mar 29, 2007

Filed:

Dec 19, 2005

Appl. No.:

11/313143

Inventors:

Frank Vazquez - Key Biscayne FL, US
Teresa Vazquez - Key Biscayne FL, US

International Classification:

A61F 2/06

US Classification:

623001150

Abstract:

An intralumenal tubular assembly comprising two elements of essentially equal length, bonded together preferably by coaxially inserting a rectangular wire into a rectangular thin walled tube, of shape memory superelastic material, helically wound, exhibiting a hysteresis loop in phase transformation and superelastic loading and unloading, following different paths. This composite stent assembly, upon deployment, in an occluded vessel, provides very light continuous contact with the vessel wall, enhanced by the plurality of turns with multiple peaks and valleys to prevent damage to the endothelial cells which secrete several substances that regulate the flexibility and clot formation of the vessels. The composite stent assembly can be deployed in either a compacted or extended configuration, prior to undergoing phase transformation, and relative linear and rotational movement within the occluded vessel.