Blood-pressure monitoring device featuring a calibration-based analysis
First Claim
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1. A method for monitoring a patient'"'"'s blood pressure, the method comprising:
- simultaneously measuring the patient'"'"'s arterial blood flow with a monitoring device and a calibration blood pressure with a calibration device to obtain at least one numerical calibration curve describing the patient'"'"'s blood pressure;
generating an optical waveform based on the flow of blood through an artery of the patient using a vital-sign monitor of the monitoring device, the vital-sign monitor comprising an optical module;
comparing the optical waveform to a mathematical model that describes a primary wave and a reflected wave in a circulatory system of the patient to determine a plurality of calibration parameters describing a blood-pressure value for the patient;
comparing the plurality of calibration parameters to the at least one numerical calibration curve to determine a real-time blood-pressure value for the patient; and
wirelessly transmitting the real-time blood-pressure value for the patient.
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Abstract
A monitoring device (10), method and system are disclosed herein. The monitoring device (10) utilizes a vital sign monitor (16) to determine a plurality of vital signs of the user. The vital sign monitor (16) preferably comprises a light source (3) and photodetector (31) in communication with a pulse oximetry circuit (35).
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Citations
11 Claims
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1. A method for monitoring a patient'"'"'s blood pressure, the method comprising:
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simultaneously measuring the patient'"'"'s arterial blood flow with a monitoring device and a calibration blood pressure with a calibration device to obtain at least one numerical calibration curve describing the patient'"'"'s blood pressure; generating an optical waveform based on the flow of blood through an artery of the patient using a vital-sign monitor of the monitoring device, the vital-sign monitor comprising an optical module; comparing the optical waveform to a mathematical model that describes a primary wave and a reflected wave in a circulatory system of the patient to determine a plurality of calibration parameters describing a blood-pressure value for the patient; comparing the plurality of calibration parameters to the at least one numerical calibration curve to determine a real-time blood-pressure value for the patient; and wirelessly transmitting the real-time blood-pressure value for the patient. - View Dependent Claims (2, 3, 4, 5)
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6. A method for monitoring a patient'"'"'s real-time blood pressure, the method comprising:
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simultaneously measuring the patient'"'"'s arterial blood flow with a monitoring device and a calibration blood pressure with a calibration device to obtain at least one numerical calibration curve describing the patient'"'"'s blood pressure; generating an optical waveform based on the flow of blood through an artery of the patient using the monitoring device, the monitoring device comprising an optical module comprising a light source, a photodetector and a pulse oximetry circuit; comparing the optical waveform to a mathematical model that describes a primary wave and a reflected wave in a circulatory system of the patient to determine a plurality of calibration parameters describing a blood-pressure value for the patient; comparing the plurality of calibration parameters to the at least one numerical calibration curve to determine a real-time blood-pressure value for the patient; and wirelessly transmitting the real-time blood-pressure value for the patient from the monitoring device to a hand-held device.
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7. A method for monitoring a patient'"'"'s blood pressure, the method comprising:
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obtaining at least one numerical calibration curve describing the patient'"'"'s blood pressure; generating an optical waveform based on the flow of blood through the patient'"'"'s artery; fitting the optical waveform to determine calibration parameters describing a blood-pressure value wherein the fitting comprises comparing the optical waveform to a mathematical model that describes a primary wave and a reflected wave in a circulatory system of the patient; comparing the calibration parameters to the at least one numerical calibration curve to determine the blood-pressure value; and wirelessly transmitting the blood-pressure value. - View Dependent Claims (8, 9, 10, 11)
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Specification