APPARATUS FOR CONTINUOUSLY AND AUTOMATICALLY MEASURING PULSE WAVE AND METHOD FOR MEASURING BLOOD PRESSURE
First Claim
1. An apparatus for measuring a pulse wave continuously and automatically, comprising:
- an integrated measurement module comprising an electrocardiogram measurement unit which measures electrocardiogram of a testee, a bioelectrical impedance measurement unit which measures bioelectrical impedance of the testee based on a potential difference, a cardiac sound measurement unit which measures a cardiac sound of the testee, and a controller which measures a state of a cardiovascular system of the testee based on a pulse transit time (PTT′
) calculated based on the electrocardiogram signal measured by the electrocardiogram measurement unit, the bioelectrical impedance signal measured by the bioelectrical impedance measurement unit, and the cardiac sound signal measured by the cardiac sound measurement unit;
a first communication power module comprising a first wireless communication unit which is electrically connected to the integrated measurement module and wirelessly sends and receives information of the integrated measurement module and information of an external terminal and a first power supply unit which supplies power to the first wireless communication unit and the measurement module; and
a biomeasurement pad in which the integrated measurement module and the first communication power module are seated and which comprises bioelectrodes electrically connected to the bioelectrical impedance measurement unit.
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Accused Products
Abstract
Disclosed is an apparatus for continuously and automatically measuring a pulse wave by a non-invasive method to know the state of a cardiovascular system. The apparatus includes an integrated measurement module, a communication power module, and a bio-measurement pad. The integrated measurement module includes an electrocardiogram measurement portion for measuring the electrocardiogram of a subject, a bioelectrical impedance measurement portion for measuring the bioelectrical impedance of the subject by a potential difference, a heart sound measurement portion for measuring the heart sound of the subject, and a controller for measuring and controlling the state of the cardiovascular system of the subject on the basis of a pulse transit time calculated by the electrocardiogram signal measured at the electrocardiogram measurement portion, the bioelectrical impedance signal measured at the bioelectrical impedance measurement portion, and the heart sound signal measured at the heart sound measurement portion.
46 Citations
18 Claims
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1. An apparatus for measuring a pulse wave continuously and automatically, comprising:
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an integrated measurement module comprising an electrocardiogram measurement unit which measures electrocardiogram of a testee, a bioelectrical impedance measurement unit which measures bioelectrical impedance of the testee based on a potential difference, a cardiac sound measurement unit which measures a cardiac sound of the testee, and a controller which measures a state of a cardiovascular system of the testee based on a pulse transit time (PTT′
) calculated based on the electrocardiogram signal measured by the electrocardiogram measurement unit, the bioelectrical impedance signal measured by the bioelectrical impedance measurement unit, and the cardiac sound signal measured by the cardiac sound measurement unit;a first communication power module comprising a first wireless communication unit which is electrically connected to the integrated measurement module and wirelessly sends and receives information of the integrated measurement module and information of an external terminal and a first power supply unit which supplies power to the first wireless communication unit and the measurement module; and a biomeasurement pad in which the integrated measurement module and the first communication power module are seated and which comprises bioelectrodes electrically connected to the bioelectrical impedance measurement unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for measuring blood pressure, comprising steps of:
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measuring an electrocardiogram signal of a testee; measuring a bioelectrical impedance signal of the testee based on a potential difference; measuring a cardiac sound signal of the testee; and measuring a state of a cardiovascular system of the testee based on a pulse transit time calculated based on the electrocardiogram signal, the bioelectrical impedance signal, and the cardiac sound signal, wherein the step of measuring the state of the cardiovascular system of the testee comprises calculating a pulse transit time (PTT′
) using an equation below;the pulse transit time (PTT′
)=PTT−
PEP(wherein PTT is a time interval between a peak point R in the electrocardiogram signal and a highest point or lowest point in the bioelectrical impedance signal, and the PEP is a time interval between the peak point R in the electrocardiogram signal and a first highest point S1 of the cardiac sound signal). - View Dependent Claims (14)
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15. An apparatus for measuring a pulse wave continuously and automatically, comprising:
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an electrocardiogram measurement unit which measures electrocardiogram of a testee, a bioelectrical impedance measurement unit which measures bioelectrical impedance of the testee based on a potential difference, a cardiac sound measurement unit which measures a cardiac sound of the testee, and a controller which measures a state of a cardiovascular system of the testee based on a pulse transit time (PTT′
) calculated based on the electrocardiogram signal measured by the electrocardiogram measurement unit, the bioelectrical impedance signal measured by the bioelectrical impedance measurement unit, and the cardiac sound signal measured by the cardiac sound measurement unit. - View Dependent Claims (16, 17, 18)
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Specification