Apparatus and method for removing stenotic material from stents
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United States of America Patent
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May 11, 1999
Issued Date -
N/A
app pub date -
Dec 24, 1997
filing date -
Feb 12, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus and methods are provided for recanalizing stented regions within the vasculature which have become restenosed. A shearing body is displaced within the stented region in order to dislodge the stenotic material from an interface envelope defined by the inner surface of the stent. Usually, the shearing body will be compliant and sized slightly larger than the stent in order to remove stenotic material substantially uniformly around the entire interface envelope. The shearing body may be in the form of a brush, helical row, spaced-apart disks, solid compressible body, or a variety of other specific configurations.
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