ZHANG, ZHIYONG,RANGWALA, HUSSAIN,VANPELT, ROBERT,GUGGENHEIMER, ETHAN,WHEALON, WILLIAM,MOBERG, JOHN
申请号：
CA2781046
公开号：
CA2781046C
申请日:
2010.12.02
申请国别(地区):
CA
年份:
2014
代理人:
摘要：
A catheter which includes a cutting element (4B) having one or more raised (26B) 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 curved surface (30B) that is adapted to redirect cut particles of material when said curved surface is rotated so that a fluid vortex directing said cut particles towards one or more of the axis of rotation of the cutting element, the catheter axis, or a particle collection chamber is created. In further aspects of the invention, a cutting element oscillates in a direction roughly parallel to the axis of rotation of the cutting element.
