Blood pressure measurement device
First Claim
1. A blood pressure measurement device comprising:
- a pressing surface which is formed with a pressure detection unit;
a pressing unit which presses the pressing surface toward an artery that is located under a skin of a living body; and
a control unit programmed to perform prescribed operations including functions of;
a pressing control unit which controls a pressing force of the pressing unit;
a first blood pressure calculation unit which calculates first blood pressure values in the artery on the basis of a first pressure pulse wave that was detected by the pressure detection unit in a process that the pressing force was increased or decreased by a control of the pressing control unit;
a calibration data generation unit which generates calibration data on the basis of the first pressure pulse wave detected by the pressure detection unit and the first blood pressure values;
a second blood pressure calculation unit which calculates second blood pressure values in the artery by calibrating, using the calibration data, a second pressure pulse wave that is detected by the pressure detection unit in a state that the pressing surface is pressed toward the artery with an optimum pressing force for deforming a part of the artery into a flat shape;
a judging unit which judges whether a detection condition of the second pressure waves coincide with a detection condition of a pressure pulse wave that was used for generation of the calibration data; and
a processing unit which performs processing depending on a judgment result of the judging unit,wherein, in the state that the pressing force is held at the optimum pressing force, the processing unit;
causes the second blood pressure calculation unit to stop processing of calculating the second blood pressure values if the detection condition of the second pressure waves does not coincide with the detection condition of the pressure pulse wave that was used for generation of the calibration data, andcauses the second blood pressure calculation unit to perform processing of calculating the second blood pressure values if the detection condition of the second pressure waves coincides with the detection condition of the pressure pulse wave that was used for generation of the calibration data.
1 Assignment
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Accused Products
Abstract
The embodiment provides a blood pressure measurement device equipped with an air bag drive unit, a pressing surface formed with pressure sensors, and a control unit which calculates first blood pressure values on the basis of a first pressure pulse wave that was detected by the pressure sensors, generates calibration data using the first blood pressure values, and calculates second blood pressure values by calibrating, using the calibration data, a second pressure pulse wave that is detected by the pressure sensors in a state that the pressing force is set at an optimum pressing force. The control unit performs the processing of calculating second blood pressure values by calibrating the second pressure pulse wave if detection conditions of the second pressure pulse wave coincide with detection conditions of a pressure pulse wave used for generation of the calibration data.
7 Citations
5 Claims
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1. A blood pressure measurement device comprising:
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a pressing surface which is formed with a pressure detection unit; a pressing unit which presses the pressing surface toward an artery that is located under a skin of a living body; and a control unit programmed to perform prescribed operations including functions of; a pressing control unit which controls a pressing force of the pressing unit; a first blood pressure calculation unit which calculates first blood pressure values in the artery on the basis of a first pressure pulse wave that was detected by the pressure detection unit in a process that the pressing force was increased or decreased by a control of the pressing control unit; a calibration data generation unit which generates calibration data on the basis of the first pressure pulse wave detected by the pressure detection unit and the first blood pressure values; a second blood pressure calculation unit which calculates second blood pressure values in the artery by calibrating, using the calibration data, a second pressure pulse wave that is detected by the pressure detection unit in a state that the pressing surface is pressed toward the artery with an optimum pressing force for deforming a part of the artery into a flat shape; a judging unit which judges whether a detection condition of the second pressure waves coincide with a detection condition of a pressure pulse wave that was used for generation of the calibration data; and a processing unit which performs processing depending on a judgment result of the judging unit, wherein, in the state that the pressing force is held at the optimum pressing force, the processing unit; causes the second blood pressure calculation unit to stop processing of calculating the second blood pressure values if the detection condition of the second pressure waves does not coincide with the detection condition of the pressure pulse wave that was used for generation of the calibration data, and causes the second blood pressure calculation unit to perform processing of calculating the second blood pressure values if the detection condition of the second pressure waves coincides with the detection condition of the pressure pulse wave that was used for generation of the calibration data. - View Dependent Claims (2, 3, 4, 5)
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Specification