Hemadynamometer
First Claim
1. A hemadynamometer comprising:
- a piezoelectric device for being oppressing by the blood in the artery of a user to output a plurality of pulse piezoelectric signals accordingly;
a processor for comparing the waveform slope of the pulse piezoelectric signals to determine a systolic blood pressure wave and a diastolic blood pressure wave, wherein the processor determines and outputs a systolic blood pressure value and a diastolic blood pressure value corresponding to the systolic and diastolic blood pressure waves respectively; and
a display unit for displaying the systolic and diastolic blood pressure values.
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Abstract
A hemadynamometer is provided. The hemadynamometer includes a bag, an inflation unit, a deflation unit, a piezoelectric device and a processor. The bag is used for wounding on the user'"'"'s wrist or upper arm. The inflation unit is used for inflating the pressure inside the bag, and the deflation unit is used for deflating the pressure inside the bag. When the blood in the artery of the user oppresses the piezoelectric device, the piezoelectric device outputs a number of pulse piezoelectric signals accordingly. The processor is used for comparing the waveform slope of the pulse piezoelectric signals to determine a systolic blood pressure value and a diastolic blood pressure value.
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Citations
20 Claims
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1. A hemadynamometer comprising:
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a piezoelectric device for being oppressing by the blood in the artery of a user to output a plurality of pulse piezoelectric signals accordingly;
a processor for comparing the waveform slope of the pulse piezoelectric signals to determine a systolic blood pressure wave and a diastolic blood pressure wave, wherein the processor determines and outputs a systolic blood pressure value and a diastolic blood pressure value corresponding to the systolic and diastolic blood pressure waves respectively; and
a display unit for displaying the systolic and diastolic blood pressure values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A hemadynamometer comprising:
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a bag for winding on a user'"'"'s wrist or upper arm;
an inflation unit for inflating the pressure inside the bag;
a deflation unit for deflating the pressure inside the bag;
a piezoelectric device for being oppressing by blood in the artery of a user to output a plurality of pulse piezoelectric signals accordingly;
a processor for comparing the waveform slope of the pulse piezoelectric signals to determine a systolic blood pressure wave and a diastolic blood pressure wave, wherein the processor outputs a systolic blood pressure value and a diastolic blood pressure value according the systolic and diastolic blood pressure waves respectively; and
a display unit for displaying the systolic and diastolic blood pressure values. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method for measuring the blood pressure comprising:
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Inflating or deflating the pressure inside a bag wound on a user'"'"'s wrist or upper arm;
detecting a plurality of pulse piezoelectric signals during the inflation or deflation step; and
comparing the waveform slope of the pulse piezoelectric signals to determine a systolic blood pressure value and a diastolic blood pressure value. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification