BLOOD PRESSURE MONITOR
First Claim
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1. A method for measuring a blood pressure value of a user, the method comprising:
- generating an optical waveform from a first signal detected by an optical sensor comprised by a substrate in contact with a user;
generating an electrical waveform from a second signal detected by at least one electrode comprised by the substrate in contact with a user;
generating an acoustic waveform from a third signal detected by an acoustic sensor comprised by the substrate in contact with a user;
determining at least one time-dependent parameter by analyzing at least the optical waveform and the acoustic waveform; and
,processing the at least one time-dependent parameter to determine the blood pressure value for the user.
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Abstract
The invention provides a method for measuring a blood pressure value of a user featuring the following steps: 1) generating optical, electrical, and acoustic waveforms with, respectively, optical, electrical, and acoustic sensors attached to a single substrate that contacts a user; 2) determining at least one parameter by analyzing the optical and acoustic waveforms; and 3) processing the parameter to determine the blood pressure value for the user.
153 Citations
40 Claims
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1. A method for measuring a blood pressure value of a user, the method comprising:
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generating an optical waveform from a first signal detected by an optical sensor comprised by a substrate in contact with a user; generating an electrical waveform from a second signal detected by at least one electrode comprised by the substrate in contact with a user; generating an acoustic waveform from a third signal detected by an acoustic sensor comprised by the substrate in contact with a user; determining at least one time-dependent parameter by analyzing at least the optical waveform and the acoustic waveform; and
,processing the at least one time-dependent parameter to determine the blood pressure value for the user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for measuring a real-time blood pressure value for a user, the method comprising:
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placing a device in proximity to a sternal notch of the user, the device comprising an optical sensor, an acoustical sensor, a plurality of electrodes and a processor; generating an optical waveform from a signal from the optical sensor, an acoustical waveform from the acoustical sensor and an electrical waveform from the plurality of electrodes; processing the optical waveform, the acoustical waveform and the electrical waveform to determine a plurality of values comprising a PTT value, a PEP value, a VTT value and a LVET value; and generating a real-time blood pressure value for the user from at least one of the plurality of values.
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21. A method for measuring a blood pressure of a user, the method comprising:
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generating an optical waveform from a first signal detected by a first optical sensor comprised by a substrate in contact with a user, the optical waveform comprising a time-dependent pulse; generating an electrical waveform from a second signal detected by at least one electrode comprised by the substrate in contact with a user, the electrical waveform comprising a QRS complex; generating an acoustic waveform from a third signal detected by an acoustic sensor comprised by the substrate in contact with a user, the acoustic waveform comprising at least one feature representing a heart sound; determining a first parameter by analyzing a first point in time from the pulse comprised by the optical waveform and a second point in time from the at least one feature representing a heart sound comprised by the acoustic waveform; determining a second parameter by analyzing a third point in time from the QRS complex comprised by the electrical waveform at least one point in time comprised by one of the acoustic waveform and the optical waveform; and processing both the first and second parameters to determine a blood pressure value for the user.
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22. A device for measuring a blood pressure value of a user, the device comprising:
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a substrate; an optical sensor, comprised by the substrate, comprising a light source and a photodetector configured to generate an optical waveform from a first signal detected after the optical sensor irradiates the user; an electrical sensor, comprised by the substrate, comprising at least one electrode and configured to generate an electrical waveform from a second signal when the at least one electrode contacts the user; an acoustic sensor, comprised by the substrate, configured to generate an acoustic waveform from a third signal when the acoustic sensor is proximal to the user; and
,a processor, in electrical contact with the optical, electrical, and acoustic sensors, and configured to receive the optical, electrical, and acoustic waveforms, the processor further configured to determine at least one parameter by analyzing the optical waveform and the acoustic waveform and to process the at least one parameter to determine the blood pressure value for the user. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A device for measuring a blood pressure value of a user, the device comprising:
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an adhesive backing; a substrate, attached to the adhesive backing, comprising; an optical sensor comprising a light source and a photodetector configured to generate an optical waveform from a first signal detected when the optical sensor irradiates the user; an electrical sensor comprising at least one electrode and configured to generate an electrical waveform from a second signal when the at least one electrode contacts the user; and an acoustic sensor configured to generate an acoustic waveform from a third signal when the acoustic sensor is proximal to the user; and
,a connector, attached to the substrate and in electrical contact with the optical, electrical, and acoustic sensors; and a processor, in electrical contact with the connector, and configured to receive the optical, electrical, and acoustic waveforms, the processor further configured to determine at least one parameter by analyzing the optical waveform and the acoustic waveform and to process the at least one parameter to determine the blood pressure value for the user.
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39. A device for measuring a blood pressure value of a user, the device comprising:
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a substrate comprising; an optical sensor comprising a light source and a photodetector configured to generate an optical waveform from a first signal measured when the optical sensor irradiates the user; an electrical sensor comprising least two electrodes and configured to generate an electrical waveform from a second signal when the at least two electrodes contact the user; an acoustic sensor configured to generate an acoustic waveform from a third signal when the acoustic sensor is proximal to the user; and a console, attached directly to the substrate, comprising; a display; and a processor configured to receive the optical, electrical, and acoustic waveforms, the processor further configured to determine at least one parameter by analyzing the optical waveform and the acoustic waveform and to process the at least one parameter to determine the blood pressure value for the user.
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40. A device for measuring a blood pressure value of a user, the device comprising:
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a substrate comprising; an optical sensor comprising a light source and a photodetector configured to generate an optical waveform from a first signal detected when the optical sensor irradiates the user; an electrical sensor comprising at least one electrode and configured to generate an electrical waveform from a second signal when the at least one electrode contacts the user; an acoustic sensor configured to generate an acoustic waveform from a third signal when the acoustic sensor is proximal to the user; a cable in electrical contact with the substrate; and a console, in electrical contact with the cable, comprising; a display comprising a touch panel; and a processor configured to receive the optical, electrical, and acoustic waveforms, the processor further configured to determine at least one parameter by analyzing the optical waveform and the acoustic waveform and to process the at least one parameter to determine the blood pressure value for the user.
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Specification