SYSTEMS AND METHODS FOR CONTINUOUS NON-INVASIVE BLOOD PRESSURE MONITORING
First Claim
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1. A system for monitoring blood pressure of a patient, the system comprising:
- a signal generator for generating at least two PPG signals from at least two respective sensors attached to the patient;
a processor coupled to the signal generator, wherein the processor is capable of;
determining at least two reference blood pressure values based at least in part on a calibration device coupled to the patient and to the processor, andupdating a relationship between blood pressure of the patient and the at least two PPG signals based at least in part on the at least two reference blood pressure values,calculating a blood pressure value based at least in part on the updated relationship; and
an output device coupled to the processor.
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Abstract
Systems and methods are disclosed herein for continuous non-invasive blood pressure (CNIBP) monitoring. Multiple reference blood pressure values may be obtained using a calibration device. These multiple reference blood pressure values may be used as calibration points for determining a relationship between the blood pressure of a patient and photoplethysmograph (PPG) signals.
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Citations
19 Claims
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1. A system for monitoring blood pressure of a patient, the system comprising:
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a signal generator for generating at least two PPG signals from at least two respective sensors attached to the patient; a processor coupled to the signal generator, wherein the processor is capable of; determining at least two reference blood pressure values based at least in part on a calibration device coupled to the patient and to the processor, and updating a relationship between blood pressure of the patient and the at least two PPG signals based at least in part on the at least two reference blood pressure values, calculating a blood pressure value based at least in part on the updated relationship; and an output device coupled to the processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for monitoring blood pressure of a patient, the method comprising:
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determining using a processor at least two reference blood pressure values based at least in part on a calibration device coupled to the patient and to the processor; obtaining at least two PPG signals from at least two respective sensors attached to the patient; updating a relationship between blood pressure of the patient and the at least two PPG signals based at least in part on the at least two reference blood pressure values; and calculating a blood pressure value based at least in part on the updated relationship. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A computer-readable medium for use in monitoring blood pressure of a patient, the computer-readable medium having computer program instructions recorded thereon for:
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determining at least two reference blood pressure values based at least in part on a calibration device coupled to the patient; obtaining at least two PPG signals from at least two respective sensors attached to the patient; updating a relationship between blood pressure of the patient and the at least two PPG signals based at least in part on the at least two reference blood pressure values; and calculating a blood pressure value based at least in part on the updated relationship.
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Specification