Apparatus and method for estimating blood pressure
AssigneeSamsung Electronics Co., Ltd.
InventorsDae Geun JANG, Chang Soon Park, Ui Kun Kwon, Young Soo Kim
Life of this patent
Estimating the term…
Abstract
An apparatus for estimating blood pressure according to an example embodiment of the present disclosure includes: a pulse wave sensor configured to measure a pulse wave signal from an object; and a processor configured to obtain a first feature and a heart rate based on the pulse wave signal, estimate a mean arterial pressure (MAP) based on the first feature and the heart rate, and estimate a first blood pressure based on the MAP and a pulse pressure (PP).
Claims20
An apparatus for estimating blood pressure, the apparatus comprising:
- a pulse wave sensor configured to measure a pulse wave signal from an object;
- and
- a processor configured to:
- obtain a first feature and a heart rate based on the pulse wave signal,
- estimate a mean arterial pressure (MAP) based on the first feature and the heart rate, and
- estimate a first blood pressure based on the MAP and a pulse pressure (PP).
A method of estimating blood pressure, the method comprising:
- measuring a pulse wave signal from an object;
- obtaining a first feature and a heart rate based on the pulse wave signal;
- estimating a mean arterial pressure (MAP) based on the first feature and the heart rate;
- and
- estimating a first blood pressure based on the MAP and a pulse pressure (PP).
A wearable device comprising:
- a main body;
- and
- a strap connected to the main body,
- wherein the main body comprises:
- a photoplethysmogram (PPG) sensor that comprises a plurality of light sources configured to emit a green light, a red light, and an infrared light, and are disposed on a rear surface of the main body to obtain a pulse wave signal by using the plurality of light sources;
- and
- a processor configured to
- obtain calibration information that comprises a reference pulse wave signal that is measured by the PPG sensor while a user of the wearable device is in a resting state, and user profile information comprising a gender and an age of the user;
- and
- estimate a cardiovascular state of the user based on the pulse wave signal at a measurement time of the cardiovascular state, and the calibration information.
Dependencies are inferred from the claim text.