Patent ID: 9622771
Date: 2017-04-18
CPC Classifications: A61B

Claim:
1. A device for treating a lesion in a body lumen to enlarge a passageway in the body lumen, the device comprising at least one cutting member and a tracking member, the at least one cutting member having a proximal portion, a distal portion, a cutting surface, a second surface facing the tracking member and a separate material associated with the cutting member, the tracking member having a proximal portion and distal portion, the at least one cutting member and tracking member being connected at a distal portion and insertable into the body lumen as a unit, the at least one cutting member configured for movement in a direction transverse to a longitudinal axis of the tracking member to widen a gap between the at least one cutting member and tracking member at least at a distal region and to apply the separate material to an interior of the lesion, wherein the cutting surface is formed only at a distal region of the cutting member, and the separate material is associated with the cutting surface, the second surface and surfaces connecting the cutting surface and second surface.