Electronic sphygmomanometer and blood pressure measuring method
AssigneeOmron Healthcare Co., Ltd.
InventorsYukiya Sawanoi, Chisato Uesaka
Life of this patent
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Abstract
An electronic sphygmomanometer includes a central processing unit (CPU) that calculates a blood pressure calculation parameter by executing a predetermined calculation using a constant set in advance with respect to a change in a pressure pulse wave amplitude indicating a volume change of an artery at the time of blood pressure measurement. The CPU separately acquires measurement state related information related to a state of a user and/or a state of the cuff at the time of blood pressure measurement. When the measurement state related information is acquired, the CPU corrects the blood pressure calculation parameter by correcting the constant based on the measurement state related information.
Claims14
An electronic sphygmomanometer comprising:
- a cuff to be attached to a blood pressure measurement site;
- pressurization and depressurization means for adjusting a pressure to apply on the cuff;
- pressure detection means for detecting a pressure in the cuff;
- blood pressure calculation means for calculating a blood pressure value from a cuff pressure;
- recording means for recording the blood pressure value;
- and
- operation means for performing a blood pressure measurement;
- wherein the blood pressure calculation means comprises a configuration that calculates a blood pressure calculation parameter based on a predetermined calculation of multiplying a constant with respect to a maximum value of a pressure pulse wave amplitude indicating a volume change of an artery at a time of blood pressure measurement, and
- wherein the electronic sphygmomanometer further comprises:
- information acquiring means for separately acquiring measurement state related information related to a state of a user and/or a state of the cuff at the time of blood pressure measurement;
- and
- correction means for correcting the blood pressure calculation parameter by correcting the constant based on the measurement state related information when the measurement state related information is acquired by the information acquiring means,
- wherein the information acquiring means comprises a configuration that acquires information of a temporarily determined blood pressure value as the measurement state related information related to the state of the user, and
- wherein the correction means comprises a configuration that corrects the constant based on the temporarily determined blood pressure value.
A blood pressure measurement method for adjusting a pressure to apply on a cuff when the cuff is attached to a blood pressure measurement site with pressurization and depressurization means, and calculating a blood pressure value with blood pressure calculation means based on the cuff pressure detected by pressure detection means, the method comprising the steps of:
- calculating a blood pressure calculation parameter by executing a predetermined calculation using a constant set in advance with respect to a maximum value of a pressure pulse wave amplitude indicating a volume change of an artery at a time of blood pressure measurement in the blood pressure calculation means;
- separately acquiring measurement state related information related to a state of a user and/or a state of the cuff at the time of blood pressure measurement with information acquiring means;
- and
- correcting the blood pressure calculation parameter by correcting the constant with correction means based on the measurement state related information when the measurement state related information is acquired by the information acquiring means,
- wherein the step of calculating the blood pressure calculation parameter by the blood pressure calculation means comprises calculating the blood pressure calculation parameter based on a predetermined calculation of multiplying the constant to the maximum value of the pressure pulse wave amplitude, and
- wherein the step of correcting by the correction means comprises:
- acquiring information of a temporarily determined blood pressure value as the measurement state related information related to the state of the user by the information acquiring means;
- and
- correcting the constant based on the temporarily determined blood pressure value.
Dependencies are inferred from the claim text.