Fiber optic system for measuring cardiac output

Details Fiber optic system for measuring cardiac output Fiber optic system for measuring cardiac output

1995-01-31

1998-01-13

Sykes, Angela D.

Surgery

Truss

Pad

128692, 128713, A61B 500

Patent

active

057068089

ABSTRACT:
The method subject of the invention is based on fiber optic technology, and in particular on the light transmission changes at a wavelength or wavelengths .lambda..sub.s within an optical absorption band of hemoglobin occurring over a length of bare core of an optical fiber, inserted in an artery and covered with the patient's blood, when a clear aqueous saline or dextrose solution, optically transparent at said wavelength or wavelengths .lambda..sub.s, displaces much of the blood as it flows around the fiber core under the heart's pumping action.

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patent: 5379764 (1995-01-01), Barnes et al.
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patent: 5460182 (1995-10-01), Goodman et al.
patent: 5494031 (1996-02-01), Hoeft

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