System for Ventricular Function Abnormality Detection and Characterization
First Claim
1. A system for heart performance characterization and abnormality detection, comprising:
- an interface for receiving signal data representing an electrical signal indicating electrical activity of a patient heart over a plurality of heart beat cycles;
a filter for extracting first signal component data in a first selected bandwidth and first heart cycle portion of the received signal data and second signal component data in a different second selected bandwidth and second heart cycle portion of the received signal data;
a signal processor for using the received signal data in calculating a ratio of a first value derived from said first signal component data to a second value derived from said second signal component data;
a comparator for comparing the calculated ratio or value derived from the calculated ratio with a threshold value to provide a comparison indicator; and
a patient monitor for in response to said comparison indicator indicating a calculated signal characteristic value exceeds the threshold value, generating an alert message associated with the threshold.
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Accused Products
Abstract
A system for heart performance characterization and abnormality detection includes an interface for receiving signal data representing an electrical signal indicating electrical activity of a patient heart over multiple heart beat cycles. A filter extracts first signal component data in a first selected bandwidth and first heart cycle portion of the received signal data and second signal component data in a different second selected bandwidth and second heart cycle portion of the received signal data. A signal processor uses the received signal data in calculating a ratio of a first value derived from the first signal component data to a second value derived from the second signal component data. A patient monitor in response to the calculated ratio or value derived from the calculated ratio, generates an alert message associated with the threshold.
10 Citations
23 Claims
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1. A system for heart performance characterization and abnormality detection, comprising:
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an interface for receiving signal data representing an electrical signal indicating electrical activity of a patient heart over a plurality of heart beat cycles; a filter for extracting first signal component data in a first selected bandwidth and first heart cycle portion of the received signal data and second signal component data in a different second selected bandwidth and second heart cycle portion of the received signal data; a signal processor for using the received signal data in calculating a ratio of a first value derived from said first signal component data to a second value derived from said second signal component data; a comparator for comparing the calculated ratio or value derived from the calculated ratio with a threshold value to provide a comparison indicator; and a patient monitor for in response to said comparison indicator indicating a calculated signal characteristic value exceeds the threshold value, generating an alert message associated with the threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A system for heart performance characterization and abnormality detection, comprising:
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an interface for receiving signal data representing an electrical signal indicating electrical activity of a patient heart over a plurality of heart beat cycles; a filter for extracting first signal component data in a first selected bandwidth and first heart cycle portion of the received signal data and second signal component data in a different second selected bandwidth and second heart cycle portion of the received signal data; a signal processor for using the received signal data in calculating a ratio of a first value derived from said first signal component data to a second value derived from said second signal component data; and a patient monitor for, in response to comparing the calculated ratio or value derived from the calculated ratio with a threshold value, generating an alert message associated with the threshold.
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23. A method for heart performance characterization and abnormality detection, comprising the activities of:
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receiving signal data representing an electrical signal indicating electrical activity of a patient heart over a plurality of heart beat cycles; extracting first signal component data in a first selected bandwidth and first heart cycle portion of the received signal data and second signal component data in a different second selected bandwidth and second heart cycle portion of the received signal data; using the received signal data in calculating a ratio of a first value derived from said first signal component data to a second value derived from said second signal component data; and in response to comparing the calculated ratio or value derived from the calculated ratio with a threshold value, generating an alert message associated with the threshold.
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Specification