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Title: Intrauterine device for laser light diffusion and method of using the same

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 The cannula is positioned within the uterine cavity at a preferred location and then withdrawn thereby allowing the plurality of optic fibers to splay or diverge one from the other within the cavity.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. 5 figs.

Inventors:
; ; ;
Issue Date:
Research Org.:
University of California
OSTI Identifier:
170467
Patent Number(s):
5,478,339
Application Number:
PAN: 8-297,752; CNN: Grant CA-32248;Contract N00014-91-C-0134
Assignee:
Univ. of California, Oakland, CA (United States)
DOE Contract Number:  
FG03-91ER61227
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 26 Dec 1995
Country of Publication:
United States
Language:
English
Subject:
55 BIOLOGY AND MEDICINE, BASIC STUDIES; UROGENITAL SYSTEM DISEASES; THERAPY; LASERS; DESIGN; UTERUS; FIBER OPTICS; LASER RADIATION

Citation Formats

Tadir, Y, Berns, M W, Svaasand, L O, and Tromberg, B J. Intrauterine device for laser light diffusion and method of using the same. United States: N. p., 1995. Web.
Tadir, Y, Berns, M W, Svaasand, L O, & Tromberg, B J. Intrauterine device for laser light diffusion and method of using the same. United States.
Tadir, Y, Berns, M W, Svaasand, L O, and Tromberg, B J. Tue . "Intrauterine device for laser light diffusion and method of using the same". United States.
@article{osti_170467,
title = {Intrauterine device for laser light diffusion and method of using the same},
author = {Tadir, Y and Berns, M W and Svaasand, L O and Tromberg, B J},
abstractNote = {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. 5 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {12}
}