Helical stent
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United States of America Patent
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-
Feb 17, 2015
Grant Date -
Jun 7, 2007
app pub date -
Aug 1, 2006
filing date -
Oct 14, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention relates to a stent providing a high percentage of vessel coverage, preferably at least about 50% of the portion of the vessel covered by the helical elements of the stent. The stent comprises helical elements interposed between strut members in which the helical elements are connected to the strut members by linking elements. The portion of the stent having helical elements provides a high percentage of covered area for example, in an aneurysm area. The linking elements provide part of a mechanism that allows vessel coverage to be maintained as the stent is deployed from a crimped state to an expanded state allowing the helical elements to change its helix angle (the angle at which the helical elements progresses around the circumference and along the length of the stent) and thereby the pitch of the helical elements as the stent is expanded.
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