Patent ID: 7572254
Filing Date: 2009-08-11
Classification: A61B

Abstract:
1. A catheter comprising: an elongated housing having a central axis between a first proximal end and a first distal end, said housing having a channel disposed at least part way between said first proximal end and said first distal end, the elongated housing further including a tip at the first distal end, the tip having a first guidewire lumen; a laser delivery member having a second proximal end and a second distal end and comprising at least one optical fiber, said laser member being at least partially disposed within said channel and movable therein, wherein the laser delivery member further includes a second guidewire lumen; a cavity being disposed proximate said first distal end of said elongated housing and in communication with said channel; a ramp proximate said first distal end of said elongated housing, said ramp being in communication with said channel and having an inclining proximal section and an apex section, said ramp adapted to move said second distal end of said laser delivery member laterally away from said central axis of said elongated member when the distal end of the laser delivery member is on the ramp; and a guidewire extending through the second guidewire lumen of the laser delivery member, over the ramp and through the first guidewire lumen at the tip of the elongated housing, said guidewire being adapted to position said second distal end of said laser delivery member laterally away from and generally parallel to said central axis as the distal end of the laser delivery member is at or beyond the apex section of the ramp.