Steep-taper flared stents and apparatus and methods for delivering them
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United States of America Patent
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Sep 1, 2009
Issued Date -
N/A
app pub date -
Aug 22, 2006
filing date -
Aug 22, 2005
priority date (Note) -
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Abstract
A stent includes a first portion including first and second bands of cells that flare outwardly when the stent is expanded from a contracted to a flared condition, and a second portion connected to the first portion by flexible connectors. During use, the stent is introduced into a main vessel in the contracted condition and positioned with the first portion adjacent an ostium and the second portion within a branch vessel extending from the ostium. The first portion is flared, causing first struts of the first set of cells to move from an axial towards a radial and partial circumferential orientation and causing second struts of the second set of cells to move from an axial towards a radial orientation. The stent is expanded further such that the second portion expands within the branch body lumen, and the first and second struts move towards a more circumferential orientation.
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