Atherectomy catheters with imaging
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United States of America Patent
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Aug 9, 2022
Grant Date -
May 21, 2015
app pub date -
Mar 15, 2013
filing date -
May 14, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
An atherectomy catheter includes an elongate flexible catheter body, an elongate deflectable distal tip coupled to the catheter body at a hinge point, a rotatable cutter near the distal end of the catheter body, and a drive shaft extending within the catheter body and configured to rotate the cutter. The atherectomy catheter further includes an optical fiber extending through the drive shaft substantially on-axis with the catheter body and attached to the cutter. The optical fiber is configured to rotate with the drive shaft. The atherectomy catheter further includes a wedge configured to deflect the distal tip away from the catheter body at the hinge point upon axial movement of the drive shaft.
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