Surgery – Instruments – Light application
Patent
1987-12-02
1990-10-09
Hindenburg, Max
Surgery
Instruments
Light application
128 6, A61B 1736
Patent
active
049617389
ABSTRACT:
An angioplasty catheter includes a light source and eyepiece connected by a cable to a proximal portion of a stiff inner catheter of the angioplasty catheter. A plurality of optical fibers carrying light from the light source are attached to or embedded in the stiff inner catheter and terminate just inside an inflatable transparent balloon of the angioplasty catheter to illuminate the interior of the balloon and the walls of an artery, and plaque or other obstruction in the artery. A plurality of optical fibers with distal ends in the proximal portion of the balloon are embedded in or attached to the stiff inner catheter and have proximal ends connected to the eyepiece to enable a physician to view the walls of the artery and the plaque or obstruction before, during, and after an angioplasty procedure.
REFERENCES:
patent: 4224929 (1980-09-01), Furihata
patent: 4418689 (1983-12-01), Kanazawa
patent: 4445892 (1984-05-01), Hussein et al.
patent: 4448188 (1984-05-01), Loeb
patent: 4470407 (1984-09-01), Hussein
patent: 4545390 (1985-10-01), Leary
patent: 4624243 (1986-11-01), Lowery et al.
patent: 4672961 (1987-01-01), Davies
patent: 4784133 (1988-11-01), Mackin
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