CUTTING WIRE ASSEMBLY FOR USE WITH A CATHETER

摘要

A method of treating a lesion in a body lumen to enlarge a passageway in the lumen including inserting a plurality of cutting members and a tracking member through a first lumen of a catheter, withdrawing the catheter from the cutting members and tracking member, inserting the catheter over the tracking member and leaving the cutting members outside the catheter, and expanding a portion of the catheter to move the cutting members into cutting contact with the lesion. A device for treating a lesion in a body lumen including a plurality of cutting members and a tracking member is also provided.

主权项

1. A system for treating a lesion in body lumen to enlarge a passageway in the body lumen comprising:
a catheter having a lumen and an expandable portion; and a cutting assembly including a plurality of cutting members and a tracking member, the tracking member attached to at least one of the cutting members, wherein the expandable portion of the catheter is expandable to move the cutting members in a direction transverse to a longitudinal axis of the tracking member, each of the cutting members having a proximal portion and a distal portion, the proximal portions extending outside the patient when the cutting members are positioned in the body lumen adjacent the lesion, the plurality of cutting members having a cutting surface configured to treat the lesion to enlarge the passageway in the body lumen when moved by the expandable portion of the catheter.