Intrauterine device for laser light diffusion and method of usin

Details Intrauterine device for laser light diffusion and method of usin Intrauterine device for laser light diffusion and method of usin

1994-08-30

1995-12-26

Pellegrino, Stephen C.

Surgery

Instruments

Light application

606 16, 607 95, 604281, A61B 1736

Patent

active

054783399

ABSTRACT:
An improved device for delivery of photoenergy from a light source, such as a laser, into a uterine cavity for photodynamic therapy is comprised of a plurality of optic fibers, which are bundled together and inserted into the uterine cavity by means of a uterine cannula. The cannula is positioned within the uterine cavity at a preferred location and then withdrawn thereby allowing the plurality of optic fibers to splay or diverge one from the other within the cavity. Different portions of the distal tip of the optic fiber is provided with a light diffusing tip, the remainder being provided with a nondiffusing tip portion. The fiber optic shape, as well as the segment which is permitted to actively diffuse light through the tip, is selected in order to provide a more uniform exposure intensity of the photo energy or at least sufficient radiation directed to each segment of the uterine walls.

REFERENCES:
patent: 4998930 (1991-03-01), Lundahl
patent: 5298026 (1994-03-01), Chang

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