PATCH SENSOR SYSTEM FOR MEASURING VITAL SIGNS
First Claim
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1. A body-worn system for measuring blood pressure from a patient, comprising:
- at least two adhesive electrodes, each comprising an electrode component configured to measure a unique electric signal from the patient, and an adhesive component configured to adhere to the patient, a sensor unit comprising a substrate that supports an optical sensor, a first connector, a second connector, and a routing circuit, the first connector configured to connect through a first cable to the two adhesive electrodes to receive their electrical signals and transfer them and a signal from the optical sensor to the second connector, a body-worn controller comprising a processor and a short-range wireless radio, the body-worn controller configured to connect through a second cable to the second connector on the sensor unit to receive optical and electrical signals, the processor configured to process the optical and electrical signals to generate a blood pressure value, and the short-range wireless radio configured to transmit the blood pressure value to an external receiver.
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Abstract
The invention provides a system for measuring vital signs from a patient that includes: 1) a first adhesive patch featuring a first electrode that measures a first electrical signal from the patient; 2) a second adhesive patch featuring a second electrode that measures a second electrical signal from the patient; 3) a third adhesive patch, in electrical communication with the first and second adhesive patches, featuring an optical system that measures an optical waveform from the patient; and 4) a controller that receives and processes the first and second electrical signals and the optical waveform to determine the patient'"'"'s vital signs.
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Citations
10 Claims
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1. A body-worn system for measuring blood pressure from a patient, comprising:
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at least two adhesive electrodes, each comprising an electrode component configured to measure a unique electric signal from the patient, and an adhesive component configured to adhere to the patient, a sensor unit comprising a substrate that supports an optical sensor, a first connector, a second connector, and a routing circuit, the first connector configured to connect through a first cable to the two adhesive electrodes to receive their electrical signals and transfer them and a signal from the optical sensor to the second connector, a body-worn controller comprising a processor and a short-range wireless radio, the body-worn controller configured to connect through a second cable to the second connector on the sensor unit to receive optical and electrical signals, the processor configured to process the optical and electrical signals to generate a blood pressure value, and the short-range wireless radio configured to transmit the blood pressure value to an external receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for monitoring vital signs from a patient, the method comprising:
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attaching a body-worn sensor to a patient, the body-worn sensor comprising at least one single substrate that includes;
an optical system comprising a light-emitting diode that emits an optical wavelength, and a photodetector that detects reflected radiation from the light-emitting diodes to generate at least one radiation-induced photocurrent, an electrode that generates an electrical signal from the patient, and attaching a calibration source to a patient, the calibration source comprising;
a blood pressure cuff to measure an initial blood pressure value; and
processing the radiation-induced photocurrent to generate an optical waveform;
processing the electrical signal to generate an electrical waveform;
processing the optical waveform, electrical waveform, and the initial blood pressure value with a processing component to determine a patient'"'"'s blood pressure value; and
transmitting the blood pressure value through a short-range wireless transceiver to an external controller.
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Specification