Apparatus and method for estimating blood pressure
AssigneeSamsung Electronics Co., Ltd.
InventorsUi Kun Kwon, Chang Soon Park
Life of this patent
Estimating the term…
Abstract
An apparatus for estimating blood pressure is provided. The apparatus for estimating blood pressure may include: a bio-signal measurer configured to measure a bio-signal from a user; and a processor configured to extract one or more feature values from the bio-signal, to adjust a combination coefficient for combining the one or more feature values based on a reference value associated with vascular compliance, and to estimate blood pressure based on the adjusted combination coefficient, and the one or more feature values extracted from the bio-signal.
Claims17
An apparatus for estimating blood pressure, the apparatus comprising:
- a photoplethysmogram (PPG) sensor configured to measure a bio-signal from a user;
- and
- a processor configured to:
- extract, from the bio-signal, one or more feature values comprising a first feature value that shows an increasing or decreasing trend in proportion to an actual cardiac output, and a second feature value that shows an increasing or decreasing trend in proportion to an actual total peripheral resistance,
- obtain a first variation in the first feature value compared to a first reference feature value, a second variation in the second feature value compared to a second reference feature value, and a third variation based on the first variation and the second variation, and
- estimate a blood pressure based on the first variation, the second variation, and the third variation.
A method of estimating blood pressure, the method comprising:
- measuring a bio-signal from a user;
- extracting, from the bio-signal, one or more feature values comprising a first feature value that shows an increasing or decreasing trend in proportion to an actual cardiac output, and a second feature value that shows an increasing or decreasing trend in proportion to an actual total peripheral resistance;
- obtain a first variation in the first feature value compared to a first reference feature value, a second variation in the second feature value compared to a second reference feature value, and a third variation based on the first variation and the second variation;
- and
- estimating a blood pressure based on the first variation, the second variation, and the third variation, and the one or more feature values extracted from the bio signal.
Dependencies are inferred from the claim text.