Surgery – Truss – Pad
Patent
1996-09-10
1998-05-26
Bahr, Jennifer
Surgery
Truss
Pad
128664, 356 39, A61B 500
Patent
active
057552266
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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Carim Hatim M.
Ekholm Bruce P.
Erickson David P.
Kelliher, Jr. William J.
Knudson Orlin B.
Bahr Jennifer
Bartingale Kari H.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
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