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 and a separate material associated therewith, the tracking member having a proximal portion and a distal portion, the at least one the 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 on a first surface opposite a second surface facing the tracking member, the cutting surface formed only in a distal region of the at least one cutting member and the separate material is only associated with the distal region of the at least one cutting member having the cutting surface.
1 Assignment
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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.
180 Citations
16 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 and a separate material associated therewith, the tracking member having a proximal portion and a distal portion, the at least one the 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 on a first surface opposite a second surface facing the tracking member, the cutting surface formed only in a distal region of the at least one cutting member and the separate material is only associated with the distal region of the at least one cutting member having the cutting surface.
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12. 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 has a first portion of a first configuration and a second portion of a second configuration, the second portion including a cutting surface and the first portion being atraumatic, wherein the separate material is placed on the second portion and not on the first portion, wherein a height of the second portion is less than a height of the first portion.
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13. A method of treating a lesion in a body lumen, the method comprising:
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inserting a tracking member and at least one cutting member having a separate material associated therewith into the body lumen; inserting a catheter over the tracking member so the tracking member extends through a first lumen of the 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, wherein the step of inserting the at least one cutting member and tracking member comprises the step of inserting the at least one cutting member and tracking member through a lumen of an angioplasty catheter, the angioplasty catheter being different than the catheter inserted over the tracking member. - View Dependent Claims (14, 15, 16)
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Specification