Fiber optic laser catheter and method of using it

Details Fiber optic laser catheter and method of using it Fiber optic laser catheter and method of using it

2006-10-24

2006-10-24

Peffley, Michael (Department: 3739)

Surgery

Instruments

Light application

C606S015000

Reexamination Certificate

active

07125404

ABSTRACT:
A fiber optic laser catheter assembly for use in removing, or largely debulking, obstructions or occlusions from a lumen in a living body. The catheter assembly includes an outer tubular sheath, an optical fiber extending through the sheath, and a fiber guide for holding the fiber within the sheath. In all of the disclosed embodiments, the obstructions are removed by controllably positioning an optical fiber's distal tip in a succession of selected radial and circumferential positions so as to sculpt away the obstruction without substantial risk of mechanically or thermally damaging the vessel. Several of the embodiments are configured such that the portion of the occlusion that can be reliably sculpted away has a radius greater even than the radius of the catheter assembly itself.

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