Balloon catheter with controller depth incising blade
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United States of America Patent
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Jun 15, 2010
Grant Date -
Jun 1, 2006
app pub date -
Nov 29, 2004
filing date -
Nov 29, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A device for incising tissue to a pre-selected incision depth within a body conduit of a patient includes an elongated balloon catheter and at least one elongated straight blade that is mounted on the balloon. To control the incision depth, each blade has a blunt section formed with a non-incising surface and a cutting edge positioned distally to the blunt section. A proximal portion of the blade is attached to a proximal balloon section, and in operation, the balloon/blade combination is advanced into the body conduit and positioned distal to the target tissue/stenosis. The balloon is then inflated. With this inflation, the blade is inclined relative to the axis of the catheter with an increasing distance between the blade and the axis in a distal direction. The device is then withdrawn, proximally, to incise the tissue/stenosis.
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