Rapid non-invasive blood pressure measuring device
First Claim
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1. A measurement device for determining the blood pressure of a patient by finding a time when transmural pressure is approximately equal to zero, the measurement device comprising:
- a piezo-electric speaker, which perturbs at least one of pressure and volume of an artery of a patient; and
a pressure transducer placed sufficiently near a measurement site to detect a signal indicative of an oscillation response when the device perturbs the at least one of pressure and volume.
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Abstract
A measurement device for generating an arterial volume-indicative signal includes an exciter and a detector. The exciter is adapted to receive an oscillating signal and generate a pressure wave based at least in part on the oscillating signal on the artery at a measurement site on a patient. The pressure wave includes a frequency. The detector is placed sufficiently near the measurement site to detect a volumetric signal indicative of arterial volume of the patient.
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Citations
20 Claims
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1. A measurement device for determining the blood pressure of a patient by finding a time when transmural pressure is approximately equal to zero, the measurement device comprising:
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a piezo-electric speaker, which perturbs at least one of pressure and volume of an artery of a patient; and
a pressure transducer placed sufficiently near a measurement site to detect a signal indicative of an oscillation response when the device perturbs the at least one of pressure and volume. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of determining the blood pressure of a patient by finding a time when transmural pressure is approximately equal to zero, the method comprising:
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perturbing at least one of pressure and volume of an artery of a patient with a piezo-electric speaker; and
detecting a signal indicative of an oscillation response resulting from said perturbing. - View Dependent Claims (14, 15, 16)
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17. A measurement device for determining the blood pressure of a patient by finding a time when transmural pressure is approximately equal to zero, the measurement device comprising:
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means for perturbing at least one of pressure and volume of an artery of a patient; and
means for detecting a signal indicative of an oscillation response resulting from said means for perturbing. - View Dependent Claims (18, 19, 20)
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Specification