Intrauterine device for laser light diffusion and method of using the same
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 The cannula is positioned within the uterine cavity at a preferred location and then withdrawn thereby allowing the plurality of optic fibers to splay or diverge one from the other within the cavity.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.
- Research Organization:
- University of California
- DOE Contract Number:
- FG03-91ER61227
- Assignee:
- Univ. of California, Oakland, CA (United States)
- Patent Number(s):
- US 5,478,339/A/
- Application Number:
- PAN: 8-297,752; CNN: Grant CA-32248; Contract N00014-91-C-0134
- OSTI ID:
- 170467
- Country of Publication:
- United States
- Language:
- English
Similar Records
Vaginal Speculum For Photodynamic Therapy And Method Of Using The Same
Medical catheters thermally manipulated by fiber optic bundles