ECG rhythm advisory method
First Claim
1. A method of automatically determining which type of treatment is most appropriate for a cardiac arrest victim, the method comprising:
- transforming one or more time domain electrocardiogram (ECG) signals into a frequency domain representation comprising a plurality of discrete frequency bands;
combining the discrete frequency bands into a plurality of analysis bands, wherein there are fewer analysis bands than discrete frequency bands;
determining the content of the analysis bands; and
determining the type of treatment based on the content of the analysis bands.
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Abstract
A method of automatically determining which type of treatment is most appropriate for a cardiac arrest victim, the method comprising transforming one or more time domain electrocardiogram (ECG) signals into a frequency domain representation comprising a plurality of discrete frequency bands, combining the discrete frequency bands into a plurality of analysis bands, wherein there are fewer analysis bands than discrete frequency bands, determining the content of the analysis bands, and determining the type of treatment based on the content of the analysis bands.
182 Citations
82 Claims
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1. A method of automatically determining which type of treatment is most appropriate for a cardiac arrest victim, the method comprising:
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transforming one or more time domain electrocardiogram (ECG) signals into a frequency domain representation comprising a plurality of discrete frequency bands;
combining the discrete frequency bands into a plurality of analysis bands, wherein there are fewer analysis bands than discrete frequency bands;
determining the content of the analysis bands; and
determining the type of treatment based on the content of the analysis bands. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method of automatically determining which type of treatment is most appropriate for a cardiac arrest victim, the method comprising:
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transforming one or more time domain ECG signals into a frequency domain generally containing a plurality of peaks;
processing the frequency domain representation to characterize at least a plurality of the peaks, wherein characterizing a peak comprises determining a plurality of parameters characterizing the peak; and
determining the type of treatment based on the parameters characterizing at least some of the peaks. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63)
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64. A method of automatically determining which type of treatment is most appropriate for a cardiac arrest victim, the method comprising:
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transforming one or more time domain ECG signals into a frequency domain representation;
processing the frequency domain representation to characterize the content of the frequency domain representation in a band from about 6 to about 12 Hz; and
determining the type of treatment based on the content in the band. - View Dependent Claims (65, 66)
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67. A method of automatically determining which type of treatment is appropriate for a cardiac arrest victim, the method comprising:
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measuring at least one physiological signal, determining at least two parameters related to the at least one physiological signal, the at least two parameters forming a parameter set, repeating the measurement and calculation at more than two points in time to create a sequence of parameter sets, wherein the sequence of parameter sets defines a trajectory; and
analyzing the trajectory using estimation and prediction methods that comprise the use of a recursive filter. - View Dependent Claims (68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80)
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81. An AED capable of automatically determining which type of treatment is appropriate for a cardiac arrest victim, the AED comprising:
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electrical therapy pads configured to deliver electrical therapy to patients;
ECG electrodes smaller in diameter than the electrical therapy pads are integrated into the electrical therapy pads;
the smaller ECG electrodes are configured to provide at least one additional electrical vector that is approximately orthogonal to the monitoring vector produced by the ECG signal from the therapy electrodes. - View Dependent Claims (82)
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Specification