APPARATUS AND METHOD FOR ESTIMATING BLOOD PRESSURE BY USING VARIABLE CHARACTERISTIC RATIO
First Claim
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1. A method of estimating blood pressure, the method comprising:
- obtaining a pressure wave detected at a measurement body part of a subject;
calculating a characteristic ratio of the subject according to a shape of the obtained pressure wave based on a correlation between the characteristic ratio used to determine blood pressure at a measurement body part and the shape of the pressure wave detected at the measurement body part; and
estimating blood pressure at the measurement body part of the subject using the calculated characteristic ratio.
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Abstract
A method of estimating blood pressure includes obtaining a pressure wave detected at a measurement body part of a subject, calculating a characteristic ratio of the subject according to a shape of the detected pressure wave based on a correlation between the characteristic ratio used to determine blood pressure at a measurement body part and the shape of the pressure wave detected at the measurement body part, and estimating blood pressure at the measurement body part of the subject is estimated using the calculated characteristic ratio.
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Citations
20 Claims
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1. A method of estimating blood pressure, the method comprising:
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obtaining a pressure wave detected at a measurement body part of a subject; calculating a characteristic ratio of the subject according to a shape of the obtained pressure wave based on a correlation between the characteristic ratio used to determine blood pressure at a measurement body part and the shape of the pressure wave detected at the measurement body part; and estimating blood pressure at the measurement body part of the subject using the calculated characteristic ratio. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A blood pressure estimating apparatus comprising:
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a detection unit which detects a pressure wave at a measurement body part of a subject; a characteristic ratio calculation unit which calculates a characteristic ratio of the subject according to a shape of the detected pressure wave based on a correlation between a characteristic ratio used to determine blood pressure at a measurement body part and the shape of the detected pressure wave at the measurement body part; and a blood pressure estimating unit which estimates blood pressure at the measurement body part of the subject using the calculated characteristic ratio. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification