METHOD AND APPARATUS FOR MEASURING RESPONSIVENESS OF A SUBJECT
First Claim
1. A method for measuring the responsiveness of a subject, the method comprising:
- obtaining physiological signal data through at least one electrode attached to the subject;
deriving a first measure from the physiological signal data, the first measure being indicative of signal energy in the physiological signal data on a frequency band where EMG activity appears;
recording a sequence of the first measure;
subjecting the sequence of the first measure to a morphological pattern extraction operation, wherein output data of the morphological pattern extraction operation is indicative of presence of predetermined response waveforms in the sequence of the first measure; and
determining a measure of responsiveness based on the output data of the morphological pattern extraction operation.
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Accused Products
Abstract
The invention relates to a method and apparatus for measuring the responsiveness of a subject. Physiological signal data is obtained from a subject through at least one electrode attached to the skin of the subject and a first measure is derived from the physiological signal data, the first measure being indicative of signal energy in the physiological signal data on a frequency band where EMG activity appears. Recorded sequence of the first measure is subjected as input data to a morphological pattern extraction operation. The output data of the operation is indicative of presence of predetermined response waveforms in the input data and a measure of responsiveness is determined based on the output data.
48 Citations
19 Claims
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1. A method for measuring the responsiveness of a subject, the method comprising:
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obtaining physiological signal data through at least one electrode attached to the subject; deriving a first measure from the physiological signal data, the first measure being indicative of signal energy in the physiological signal data on a frequency band where EMG activity appears; recording a sequence of the first measure; subjecting the sequence of the first measure to a morphological pattern extraction operation, wherein output data of the morphological pattern extraction operation is indicative of presence of predetermined response waveforms in the sequence of the first measure; and determining a measure of responsiveness based on the output data of the morphological pattern extraction operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus comprising:
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a data processing unit configured to derive a sequence of a first measure from physiological signal data obtained from a subject through at least one electrode attached to the subject, the first measure being indicative of signal energy in the physiological signal data on a frequency band where EMG activity appears; a morphological pattern extractor configured to provide output data indicative of presence of predetermined response waveforms in input data of the morphological pattern extractor, wherein the morphological pattern extractor is further configured to receive the sequence of the first measure as the input data; and a determination unit configured to determine a measure of responsiveness based on the output data of the morphological pattern extractor. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A computer program product for a patient monitor, the computer program product comprising:
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a first program code portion configured to record a sequence of a first measure indicative of signal energy in physiological signal data on a frequency band where EMG activity appears, wherein the physiological signal data is obtained from a subject through at least one electrode attached to the subject; a second program code portion configured to provide, based on the sequence of the first measure, output data indicative of presence of predetermined response waveforms in the sequence; and a third program code portion configured to determine a measure of responsiveness based on the output data.
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Specification