Method and system utilizing SpO 2 plethysmograph signal to...

Details Method and system utilizing SpO 2 plethysmograph signal to... Method and system utilizing SpO 2 plethysmograph signal to...

2007-11-27

2007-11-27

Nasser, Robert L. (Department: 3735)

Surgery

Diagnostic testing

Cardiovascular

C600S490000, C600S496000

Reexamination Certificate

active

11470701

ABSTRACT:
A method and system for operating a non-invasive blood pressure monitor that utilizes an SpO2plethysmographic signal to reduce the time required to obtain an estimation of a patient's blood pressure. During operation of the NIBP monitor, the NIBP monitor utilizes the SpO2plethysmographic signal to determine a timing period and a deflation period for each pulse associated with the patient's heartbeat. Upon receiving an oscillation pulse, the NIBP monitor determines the oscillation amplitude during the timing period and deflates the blood pressure cuff during the deflation period immediately following the timing period. Preferably, the deflation period occurs during the same oscillation pulse used to calculate the oscillation pulse amplitude to decrease the amount of time required to obtain a blood pressure estimate from the patient.

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