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US 6,662,043 B1Granted
Heart beat coincidence detection
AssigneeGE Marquette Medical Systems, Inc.
InventorDavid J. Shine
Life of this patent
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Abstract
A method of detecting heart beat coincidence includes receiving first and second signals from first and second heart beat sources. The method further includes detecting first heart beat occurrences on the first signal, each first heart beat occurrence having a respective time associated therewith and detecting second heart beat occurrences on the second signal, each second heart beat occurrence having a respective time associated therewith. The method further includes comparing the times of the first and second heart beat occurrences to detect coincidence.
Claims23
A method of detecting heart beat coincidence, comprising:
- receiving first and second signals from first and second heart beat sources, respectively;
- detecting first heart beat occurrences on the first signal, each first heart beat occurrence having a respective time associated therewith;
- detecting second heart beat occurrences on the second signal, each second heart beat occurrence having a respective time associated therewith;
- and
- comparing the times of the first and second heart beat occurrences to detect coincidence including calculating a plurality of time offsets between the first and second heart beat occurrences and calculating a jitter between a first time offset and a second time offset.
2 more elements
A method of detecting heart beat coincidence, comprising:
- receiving first and second signals from first and second heat beat sources, respectively;
- detecting first heart beat occurrences on the first signal, each first heart beat occurrence having a respective time associated therewith;
- detecting second heart beat occurrences on the second signal, each second heart beat occurrence having a respective time associated therewith;
- comparing the times of the first and second heart beat occurrences to detect coincidence including calculating the number of second heart beat occurrences occurring between two first heart beat occurrences;
- and
- generating a divergence signal when a plurality of second heart beat occurrences occur between the two first heart beat occurrences.
3 more elements
A method of detecting heat beat coincidence, comprising:
- receiving first and second signals from first and second heat beat sources, respectively;
- detecting first heart beat occurrences on the first signal, each first heart beat occurrence having a respective time associated therewith;
- detecting second heat beat occurrences on the second signal, each second heart beat occurrence having a respective time associated therewith;
- comparing the times of the first and second heart beat occurrences to detect coincidence, including:
- calculating a plurality of time offsets between the first and second heart beat occurrences;
- calculating a jitter between a first time offset and a second time offset;
- comparing the jitter to a predetermined jitter value and incrementing a coincidence counter when the jitter is less than a predetermined jitter value;
- incrementing a divergence counter when the jitter is greater than the predetermined jitter value;
- and
- calculating a coincidence index based on the ratio of the coincidence counter to the divergence counter;
- and
- generating one of a coincidence signal and a divergence signal based on a plurality of time offsets.
9 more elements
A system for detecting heart beat coincidence, comprising:
- means for receiving first and second signals from first and second heart beat sources, respectively;
- means for detecting first heart beat occurrences on the first signal, each first heart beat occurrence having a respective time associated therewith;
- means for detecting second heart beat occurrences on the second signal, each second heart beat occurrence having a respective time associated therewith;
- and
- means for comparing the times of the first and second heart beat occurrences to detect coincidence including means for calculating a plurality of time offsets between the first and second heat beat occurrences and means for calculating a jitter between a first time offset and a second time offset.
2 more elements
A system for detecting heart beat coincidence, comprising:
- means for receiving first and second signals from first and second heart beat sources, respectively;
- means for detecting first heart beat occurrences on the first signal, each first heart beat occurrence having a respective time associated therewith;
- means for detecting second heart beat occurrences on the second signal, each second heart beat occurrence having a respective time associated therewith;
- and
- means for comparing the times of the first and second heart beat occurrences to detect coincidence including means for calculating the number of second heart beat occurrences occurring between two first heart beat occurrences;
- and
- means for generating a divergence signal when a plurality of second heart beat occurrences occur between the two first heart beat occurrences.
4 more elements
A heart beat coincidence detection system, comprising:
- a processor configured to receive first and second cardiac signals, to detect first and second heart beats on the first and second cardiac signals, respectively, to calculate phase shifts between respective first and second heart beats, and to generate a display signal based on the phase shifts;
- and
- an output device configured to receive the display signal and to provide the display signal to an operator;
- wherein the processor is configured to calculate a jitter based on the phase shifts.
1 more element
Dependencies are inferred from the claim text.