Non-invasive blood pressure monitoring device and methods

Details Non-invasive blood pressure monitoring device and methods Non-invasive blood pressure monitoring device and methods

2004-08-20

2009-10-13

Nasser, Robert L (Department: 3735)

Surgery

Diagnostic testing

Cardiovascular

C600S481000, C600S485000, C600S493000, C600S499000

Reexamination Certificate

active

07601123

ABSTRACT:
The apparatus and methods of the present invention provide a non-invasive measurement of blood pressure with a frequency that approximates a continuous measurement. Blood pressure measurement provides information that is both clinically and diagnostically significant. In accordance with an aspect of the present invention, a method for providing a non-invasive measurement of blood pressure, includes obtaining a first input signal and a second input signal indicative of systolic blood pressure and diastolic blood pressure, respectively; tracking a signal indicative of pulse pressure; continuously measuring a third signal indicative of mean blood pressure; and processing the signals to obtain a measurement indicative of systolic and diastolic blood pressure, wherein at least a portion of the measurement indicative of systolic and diastolic blood pressure is continuous. The second input signal indicative of diastolic blood pressure is analyzed to identify a maximum amplitude of the signal, the maximum amplitude being indicative of the diastolic blood pressure measurement.

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