SYSTEMS AND METHODS FOR NON-INVASIVE CONTINUOUS BLOOD PRESSURE DETERMINATION
First Claim
1. A method for determining blood pressure based on a physiological signal, the method comprising:
- receiving the physiological signal;
identifying, using processing circuitry, a first point and a second point of the physiological signal;
measuring, using the processing circuitry, an area under a segment of the physiological signal, wherein the segment begins at the first point and ends at the second point, wherein the segment is a portion of a pulse in the physiological signal, and wherein the portion is smaller than the pulse; and
determining, using the processing circuitry, blood pressure based on the measured area.
1 Assignment
0 Petitions
Accused Products
Abstract
According to some embodiments, systems and methods are provided for non-invasive continuous blood pressure determination. In some embodiments, a PPG signal is received and locations of pulses within the PPG signal are identified. An area within a particular pulse is measured. The area may be of just the upstroke, downstroke or the entire pulse. The area may be measured relative to a time-domain axis or a baseline of the pulse. The pulse may be split into multiple sections and the area of each section may be measured. The area of one portion of the pulse may correspond to systolic blood pressure while the area of another portion may correspond to diastolic blood pressure. Empirical data may be used to determine blood pressure from the measured area by applying calibration data measured by a suitable device.
-
Citations
20 Claims
-
1. A method for determining blood pressure based on a physiological signal, the method comprising:
-
receiving the physiological signal; identifying, using processing circuitry, a first point and a second point of the physiological signal; measuring, using the processing circuitry, an area under a segment of the physiological signal, wherein the segment begins at the first point and ends at the second point, wherein the segment is a portion of a pulse in the physiological signal, and wherein the portion is smaller than the pulse; and determining, using the processing circuitry, blood pressure based on the measured area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A system for determining blood pressure based on a physiological signal, the system comprising:
processing circuitry configured to; receive the physiological signal; identify a first point and a second point of the physiological signal; measure an area under a segment of the physiological signal, wherein the segment begins at the first point and ends at the second point, wherein the segment is a portion of a pulse in the physiological signal, and wherein the portion is smaller than the pulse; and determine blood pressure based on the measured area. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
Specification