Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Light application
Patent
1995-06-06
1997-05-27
Nasser, Robert L.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Light application
606 7, 606 15, 606 16, 606 17, A61B 1736
Patent
active
056327676
ABSTRACT:
Methods and apparatus are disclosed for diffusing radiation from a optical fiber to provide a larger exposure area for phototherapy and to provide a substantially uniform energy distribution to a major portion of the exposure area. The invention is especially useful in constructing and implementing circumferential and/or sideways-emitting diffusive tip assemblies, or quasi-spherical diffusive tip assemblies for optical fibers to direct laser radiation in a radially outward pattern relative to the fiber's axis. In one aspect of the invention, a plurality of optically-transmissive fiber tip assemblies are employed to act as diffusers. The two or more fiber tip assemblies are deployed as loops which create a uniform illumination pattern. By "looping" or "folding" the fibers, a plurality of fibers can be deployed in conjunction with one another to create geometric exposure patterns with increased energy density while still avoiding "hot spots."
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U.S. application No. 08/303,605, Sinofsky, filed Sep. 9, 1994.
Engellenner Thomas J.
Nasser Robert L.
Rare Earth Medical, Inc.
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