Cutting wire assembly with coating for use with a catheter
First 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.
1 Assignment
0 Petitions
Accused Products
Abstract
A device for treating a lesion in a body lumen to enlarge a passageway in the body lumen having at least one cutting member and a tracking member. The at least one cutting member has a cutting surface and a separate material associated therewith. The cutting member and tracking member are connected at a distal portion and insertable into the body lumen as a unit, the cutting member configured for movement in a direction transverse to a longitudinal axis of the tracking member to widen a gap between the cutting member and tracking member at least at a distal region and to apply the separate material to an interior of the lesion.
163 Citations
18 Claims
- 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.
-
15. 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 and a separate material associated therewith, 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 at least one cutting member is substantially circular in cross-section in a proximal region and substantially triangular in cross-section in a distal region, wherein the substantially triangular cross section has a first cutting surface, a second surface opposite the cutting surface and facing the tracking member and surfaces between the first and second surfaces, wherein the separate material is associated with the first cutting surface, the second surface and the surfaces between the first and second surfaces.
-
16. A method of treating a lesion in a body lumen, the method comprising:
-
inserting a tracking member and at least one cutting member having a separate material associated therewith through a first lumen of a first catheter and into the body lumen, the at least one cutting member has a first cutting surface, a second surface opposite the cutting surface and facing the tracking member and surfaces between the cutting surface and second surface, wherein the separate material is associated with the first cutting surface, the second surface and the surfaces between the cutting surface and second surface; withdrawing the first catheter from the body lumen; inserting the first catheter over a proximal end of the tracking member from outside the body lumen so the tracking member extends through the first lumen of the first catheter and the at least one cutting member does not extend through the first lumen; and moving the at least one cutting member away from the tracking member into cutting contact with the lesion to enlarge a passageway in the body lumen and apply the separate material to an interior of the lesion. - View Dependent Claims (17, 18)
-
Specification