Methods and devices for cutting tissue
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United States of America Patent
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Jul 30, 2013
Issued Date -
N/A
app pub date -
Dec 2, 2010
filing date -
Dec 2, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A catheter which includes a cutting element having one or more raised elements is provided. The cutting element has a cup-shaped surface at the distal end that may be smooth and continuous except for the raised elements. The raised elements have a surface that tends to direct cut particles of material towards one or more of the axis of rotation of the cutting element, the catheter axis, or a particle collection chamber. In further aspects of the invention, a cutting element oscillates in a direction roughly parallel to the axis of rotation of the cutting element.
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