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US 4,974,929 AGranted
Fiber optical probe connector for physiologic measurement devices
AssigneeBaxter International Inc.
InventorKenneth M. Curry
Life of this patent
Estimating the term…
Abstract
A biological fiber optic probe chemical indicator device is disclosed. Structurally, the probe comprises at least one strand of optical fiber terminating in a coupling arrangement with a disposable sleeve assembly including a chemical indicator system for physiological substances. The disposable sleeve sensor element comprises a tubular housing with annular wall portions defining a female coupling channel means and a casing for a chemical reagent indicator.
Claims16
A sensor connector for the measurement of a fluid or gaseous constituent comprising:
- a housing permeable to said constituent and defining an annular channel therein, said channel containing a reagent reactive with said constituent to produce a by-product;
- an exterior sleeve for limiting the rate of influx of the constituent;
- and
- said housing also comprising a layer permeable to said by-product interior to said annular channel and defining an interior chamber, said interior chamber containing a chemical optically responsive to said by-product for measurement of the concentration of said fluid constituent via said by-product.
1 more element
A fiber optic sensor comprising:
- a fiber optic core;
- a sensor connector comprising a first layer permeable to a chemical to be measured and defining an interior chamber, only a portion of which is filled with an optically active indicator for said chemical, the remainder of the chamber forming an open receptor cavity generally in the shape of the core so that the fiber optic core is attached to the sensor by insertion in the cavity before use and detached after use to maximize repeated use of the fiber optic core.
Dependencies are inferred from the claim text.