Plastic optical fiber for in vivo use having a biocompatible polysiloxane cladding
US4867531A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 29, 1988 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Feb 29, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/048
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention pertains to a flexible organic polymeric optical fiber core having an adherent flexible organic polymeric cladding on the outer surface. More particularly, the invention relates to an organic polymeric optical fiber having a polysiloxane cladding for long term in vivo use in the tissue of a living mammal, preferably a human being. In addition to compatibility in live tissue and body fluids, such a fiber must be capable of repeatedly being deformed in a small bend radius without losing the ability to transmit light. The clad optical fibers are used to measure levels of components (e.g., pH, oxygen, carbon dioxide) in living, moving tissue such as the heart or lungs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.