Surgery – Truss – Pad
Patent
1991-02-15
1992-08-25
Smith, Ruth S.
Surgery
Truss
Pad
128672, 128694, A61B 502
Patent
active
051409909
ABSTRACT:
A method and apparatus for determining arterial blood pressures using a photoplethysmograph is provided. In the inventive method the photoplethysmograph output is calibrated to the patient using an auxiliary blood pressure determining instrument, a constant k particular to the patient's arterial blood pressure-volume relationship is determined and is stored for later use; at the time of measurement information is obtained from the photoplethysmograph output; and a computer determines the patient's systolic and diastolic blood pressure.
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Jones Paul H.
Wang Wei-Min
Nasser Robert L.
Smith Ruth S.
SpaceLabs Inc.
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