Vascular re-entry catheter
AssigneeOrbusneich Medical Pte. Ltd.
InventorRobert J. COTTONE
Life of this patent
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Abstract
A catheter has a guide-tip including at least one wing for crossing a CTO lesion in an artery via exploring the subintimal space. The catheter can includes one or more exit port(s) and radiopaque marker(s) for steering a re-entry wire through one of the exit ports. The catheter may include a number of spiral-cut sections with varying characteristics to provide different strength and flexibility along the axial direction.
Claims19
A catheter device comprising,
- a distal tube portion having a distal tip and a longitudinal axis, the distal tube portion including a tube wall comprising at least one side port and at least one radiopaque marker, and at least one wing protruding radially outward from the tube wall.
A method for facilitating treatment of an occlusion in a blood vessel with a catheter device, the blood vessel having a vascular wall defining a vascular lumen containing an occlusion therein, the method comprising:
- positioning the catheter device proximate the occlusion, the catheter device having a lumen and comprising:
- a distal catheter tube portion including
- a tube wall comprising at least one side port and at least one radiopaque marker,
- a guide-tip located at a distal end of the catheter, where the guide-tip includes at least two wings protruding radially outward in diametrically opposing directions,
- advancing the guide-tip within the vascular wall adjacent the occlusion until the at least one side port is positioned distal of the occlusion to establish a channel in the vascular wall extending longitudinally across the occlusion;
- orienting the at least one side port toward the vascular lumen;
- inserting a re-entry device through the lumen of the catheter device wherein the re-entry device has a distal end portion in a compressed state;
- and
- manipulating the re-entry device such that a distal end portion of the re-entry device exits, in a natural state, from the at least one side port into the distal segment of the vascular lumen.
Dependencies are inferred from the claim text.