Method and apparatus for noninvasive prediction of hematocrit

Details Method and apparatus for noninvasive prediction of hematocrit Method and apparatus for noninvasive prediction of hematocrit

1994-01-31

1996-09-10

Sykes, Angela D.

Surgery

Truss

Pad

128664, 356 39, A61B 500

Patent

active

055536158

ABSTRACT:
A method and apparatus for the direct noninvasive prediction of hematocrit in mammalian blood using photoplethysmography techniques and data processing. The method and apparatus also include optional prediction of other analytes of interest: percent oxygen saturation of mammalian blood and methemoglobin of stored blood. The method and apparatus can be used for the immediate, periodic, or continuous noninvasive diagnosis or monitoring of hematocrit levels in mammalian patients without pain to the patient or exposure of the health care practitioner to the blood of the patient.

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