Flexible expandable vascular support
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United States of America Patent
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-
Feb 20, 2001
Grant Date -
N/A
app pub date -
May 25, 1999
filing date -
May 28, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to an expandable insert for use as a vessel support in blood vessels, the insert being able to deform plastically from a nonexpanded state to an expanded state by application of a radial force directed from the inside outward, with at least one tubular, essentially cylindrical main body section, whose circumferential surface is formed by a number of annularly meandering rings, the rings in each case forming a one-piece strand of material with a defined strand length. The insert is particularly stiff with respect to externally acting radial forces because a first group of rings is provided whose strand length essentially corresponds to the circumference of the insert in the expanded state, and a second group of rings is provided whose strand length is greater than the circumference of the insert in the expanded state.
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