Method and apparatus for uterine contraction monitoring using linear predictive modeling of abdominal surface EMG signals
First Claim
1. A system for processing electromyogram (EMG) input signals from an external abdominal surface to detect uterine contractions, said system comprising:
- a sensor configured to detect an EMG signal and to generate a corresponding EMG input signal; and
a signal processor coupled to said sensor and configured to generate a respective EMG prediction error signal, which represents a magnitude of at least one contraction event and periodicity of a set of multiple contraction events.
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Abstract
A system and a method are provided for processing electromyogram (EMG) input signals from an abdominal surface to detect uterine contractions. The system comprises a sensor configured to detect a uterine EMG signal and generate an EMG input signal. The system further includes a signal processor coupled to the sensor and configured to generate an EMG prediction error signal. The signal processor performs signal-processing operations on the EMG input signal to generate the EMG prediction error signal, where the EMG prediction error signal corresponds to the magnitude of at least one contraction event and the periodicity of multiple contraction events.
65 Citations
26 Claims
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1. A system for processing electromyogram (EMG) input signals from an external abdominal surface to detect uterine contractions, said system comprising:
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a sensor configured to detect an EMG signal and to generate a corresponding EMG input signal; and
a signal processor coupled to said sensor and configured to generate a respective EMG prediction error signal, which represents a magnitude of at least one contraction event and periodicity of a set of multiple contraction events. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for processing electromyogram (EMG) input signals from an external abdominal surface to detect uterine contractions, said method comprises:
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generating at least one EMG input signal; and
computing an EMG prediction error signal which represents a magnitude of at least one contraction event and periodicity of a set of multiple contraction events. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification