Pain level detection and characterization using capacitive sensors
First Claim
1. A measurement system to detect pain response in a patient, the measurement system comprising:
- one or more patient sensors, disposed proximate to the patient, at least one of the patient sensors having at least two capacitive elements positioned on opposite sides of tissue of the patient;
a capacitive system configured to measure a capacitance signal for the tissue of the patient, using at least one of the one or more patient sensors;
a patient monitor configured to measure an electrical signal representing brain activity of the patient, using at least one of the one or more patient sensors; and
a processing system configured to determine pain metrics based at least on the capacitance signal and the electrical signal, and determine a pain response of the patient based at least on the pain metrics and pain calibration information for the patient.
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Accused Products
Abstract
Systems, methods, sensors, and software for providing enhanced measurement and detection of patient pain response are provided herein. In a first example, a measurement system is provided that includes a capacitive system configured to measure a capacitance signal of tissue of the patient using a capacitive sensor proximate to the tissue of the patient. The measurement system also includes a patient monitor configured to measure an electrical signal representing brain activity of the patient. The measurement system also includes a processing system configured to determine pain metrics based at least on the capacitance signal and the electrical signal, and determine a pain response of the patient based at least on the pain metrics and pain calibration information for the patient.
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Citations
20 Claims
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1. A measurement system to detect pain response in a patient, the measurement system comprising:
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one or more patient sensors, disposed proximate to the patient, at least one of the patient sensors having at least two capacitive elements positioned on opposite sides of tissue of the patient; a capacitive system configured to measure a capacitance signal for the tissue of the patient, using at least one of the one or more patient sensors; a patient monitor configured to measure an electrical signal representing brain activity of the patient, using at least one of the one or more patient sensors; and a processing system configured to determine pain metrics based at least on the capacitance signal and the electrical signal, and determine a pain response of the patient based at least on the pain metrics and pain calibration information for the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of operating a measurement system to detect pain response in a patient, the method comprising:
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measuring a capacitance signal for tissue of the patient using a capacitive sensor proximate to the tissue of the patient, having at least two capacitive elements positioned on opposite sides of tissue of the patient; measuring an electrical signal representing brain activity of the patient using a brain activity sensor proximate to the tissue of the patient; and determining a pain response of the patient based at least in part on pain metrics derived from the capacitance signal, the electrical signal, and pain calibration information for the patient. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus comprising:
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one or more computer readable storage media; and program instructions stored on the one or more computer readable storage media for at least identifying a pain response in a patient, that when executed by a processing system, direct the processing system to at least; monitor a capacitance signal for tissue of the patient using at least two capacitor elements applied to opposite sides of the tissue of the patient; process the capacitance signal to derive one or more capacitive pain metrics for the patient; identify an electrical signal representing brain activity of the patient, using at least one electrical sensor applied to the tissue of the patient; determine the pain response of the patient based at least on correlating the electrical signal to the capacitive pain metrics. - View Dependent Claims (20)
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Specification