Laser Ablation Catheter
AssigneeThe Spectranetics Corporation
InventorsBrandon Thomas Hendrick, Kenneth P. Grace
Life of this patent
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Abstract
A system and devices for ablation and removal of occlusions from blood vessels is provided. Laser cutting systems and mechanical cutting systems are provided in catheter devices, the cutting systems operable to ablate, cut, dislodge, and otherwise remove occlusions within a blood vessel that may limit or prevent proper circulation. Catheter systems comprise distal end features adapted to cut and remove at least portions of an occlusion that generally correspond to dimensions of an inner lumen of a catheter.
Claims18
A catheter assembly comprising:
- a catheter having a tubular wall, the tubular wall comprising a distal end and an orifice for a lumen extending proximally from the distal end, wherein the orifice is smaller than the lumen;
- a plurality of optical fibers located within the tubular wall and exposed at the distal end of the catheter.
A catheter assembly comprising:
- a catheter having a distal end and an orifice for a lumen extending proximally from the distal end;
- a plurality of optical fibers located within the catheter and around at least a portion of a perimeter of the lumen and exposed at the distal end of the catheter;
- an inner band located with a distal portion of the lumen, the inner band comprising a proximal and a distal end, wherein the inner band has a diameter at its distal end and the lumen has a diameter at its smallest cross section, and wherein the diameter of the inner band is smaller than the diameter of the lumen.
A catheter assembly comprising:
- a catheter wall comprising a distal portion and an orifice to a lumen extending proximally from the distal end;
- an outer jacket located around the distal portion of the catheter;
- a plurality of optical fibers located within the catheter and substantially concentric with the inner lumen, the plurality of optical fibers located radially outward of the inner lumen and radially inward of the outer jacket;
- an inner band located at the distal portion of the catheter and within the lumen, wherein the inner band has at least one inner diameter, and the lumen has at least one inner diameter, and wherein the at least one diameter of the inner band is smaller than the at least one diameter of the lumen.
Dependencies are inferred from the claim text.