Surgery – Instruments – Light application
Patent
1991-08-01
1993-06-08
Pellegrino, Stephen C.
Surgery
Instruments
Light application
606 14, 606 15, 606 16, A61B 1736
Patent
active
052174549
ABSTRACT:
An apparatus and method are disclosed for transmitting laser energy to occlusions within obstructed vessels. In the preferred embodiments, a laser delivery catheter includes a hollow tip that encloses a laser energy optical fiber and retractable endoscope. In use, the hollow tip is first positioned adjacent an occlusion. The endoscope can then be retracted within the hollow tip to enhance utilization of the internal volume of the hollow tip for positioning of the laser energy optical fiber, thereby allowing targeting of the occlusion substantially beyond a cross-sectional area of the hollow tip. In a "balloon" embodiment, the position of the laser energy optical fiber is adjusted by an inflatable balloon, adjacent the optical fiber, within the hollow tip. In a "wire" embodiment, the position of the optical fiber is adjusted by a longitudinal movement of a torque wire.
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Angiolaz, Incorporated
Holland Donald S.
Pellegrino Stephen C.
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