Optical fiber catheter with fiber-contained reactive element

Details Optical fiber catheter with fiber-contained reactive element Optical fiber catheter with fiber-contained reactive element

1986-02-27

1987-12-01

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

128634, H01J 516

Patent

active

047106239

ABSTRACT:
An elongated optical fiber apparatus for transmitting a light signal toward a first end of the apparatus situated within a fluid to be analyzed, and for transmitting a returning light signal that is indicative of a specified characteristic of the fluid toward a second end of the apparatus that is situated outside the fluid. The optical fiber apparatus includes a light conductive cable capable of transmitting light with a hole formed in its first end. Disposed substantially entirely within this hole is a reactive element that reacts with the fluid to alter a property of the light that is indicative of a specified characteristic of the fluid.

REFERENCES:
patent: Re31879 (1985-05-01), Lubbers et al.
patent: 3123066 (1964-03-01), Brumley
patent: 4344438 (1982-08-01), Schultz
patent: 4357106 (1982-11-01), Tschirren et al.
patent: 4476870 (1984-10-01), Peterson et al.
patent: 4560248 (1985-12-01), Cramp et al.
Continuous Measurement of Intravascular pH with a Fiberoptic Sensor, Anesthesia & Analgesia Journal, vol. 64, pp. 731-736, publ. date 1985.

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