Method of signal enhancement for ECG devices
First Claim
1. A method of monitoring cardiac electrical activity, comprising:
- requesting a first cardiac electrical signal from a first ECG device, the first ECG device comprising a first pair of electrodes positioned on longitudinally opposing ends of said first ECG device, whereina first electrode of the first pair of electrodes is positioned at a location of maximum electrical potential for a first predetermined ECG signal; and
a second electrode of the first pair of electrodes is positioned along a first equipotential line extending from the location of maximum electrical potential for the first predetermined ECG signal;
receiving the first cardiac electrical signal;
requesting a second cardiac electrical signal from a second ECG device, the second ECG device comprising a second pair of electrodes positioned on longitudinally opposing ends of said second ECG device, whereina first electrode of the second pair of electrodes is positioned at a location of minimum electrical potential for the first predetermined ECG signal; and
a second electrode of the second pair of electrodes is positioned along a second equipotential line extending from the location of minimum electrical potential for the first predetermined ECG signal;
receiving the second cardiac electrical signal; and
computing an enhanced cardiac electrical signal based on the first and second cardiac signals, the enhanced cardiac electrical signal representing a larger electrical potential difference than either the electrical potential difference between the first pair of electrodes or the electrical potential difference between the second pair of electrodes.
1 Assignment
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Accused Products
Abstract
An embodiment of the invention comprises a method of monitoring cardiac electrical activity with two or more ECG devices and computing an enhanced cardiac electrical signal from the cardiac electrical signals obtained from the two or more ECG devices. Electrodes of the two or more ECG devices are positioned in a manner to provide an electrical potential difference that is large enough to give useful information about a given ECG signal. The method further includes recommending addition of a supplemental ECG device when it is determined that the one or more of the existing ECG devices are inadequate for providing cardiac electrical data that identifies a specific cardiac event.
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Citations
15 Claims
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1. A method of monitoring cardiac electrical activity, comprising:
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requesting a first cardiac electrical signal from a first ECG device, the first ECG device comprising a first pair of electrodes positioned on longitudinally opposing ends of said first ECG device, wherein a first electrode of the first pair of electrodes is positioned at a location of maximum electrical potential for a first predetermined ECG signal; and a second electrode of the first pair of electrodes is positioned along a first equipotential line extending from the location of maximum electrical potential for the first predetermined ECG signal; receiving the first cardiac electrical signal; requesting a second cardiac electrical signal from a second ECG device, the second ECG device comprising a second pair of electrodes positioned on longitudinally opposing ends of said second ECG device, wherein a first electrode of the second pair of electrodes is positioned at a location of minimum electrical potential for the first predetermined ECG signal; and a second electrode of the second pair of electrodes is positioned along a second equipotential line extending from the location of minimum electrical potential for the first predetermined ECG signal; receiving the second cardiac electrical signal; and computing an enhanced cardiac electrical signal based on the first and second cardiac signals, the enhanced cardiac electrical signal representing a larger electrical potential difference than either the electrical potential difference between the first pair of electrodes or the electrical potential difference between the second pair of electrodes. - View Dependent Claims (2, 3, 4, 5)
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6. A method of monitoring cardiac electrical activity, comprising:
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requesting a first cardiac electrical signal from a first ECG device, the first ECG device comprising a first pair of electrodes positioned on longitudinally opposing ends of said first ECG device, wherein a first electrode of the first pair of electrodes is positioned at a location of maximum electrical potential for a first predetermined ECG signal; and a second electrode of the first pair of electrodes is positioned along a first equipotential line extending from the location of maximum electrical potential for the first predetermined ECG signal; receiving the first cardiac electrical signal; requesting a second cardiac electrical signal from a second ECG device, the second ECG device comprising a second pair of electrodes positioned on longitudinally opposing ends of said second ECG device, wherein a first electrode of the second pair of electrodes is positioned at a location of minimum electrical potential for the first predetermined ECG signal; and a second electrode of the second pair of electrodes is positioned along a second equipotential line extending from the location of minimum electrical potential for the first predetermined ECG signal; receiving the second cardiac electrical signal; and computing an enhanced cardiac electrical signal based on the first and second cardiac signals, the enhanced cardiac electrical signal representing a larger electrical potential difference than either the electrical potential difference between the first pair of electrodes or the electrical potential difference between the second pair of electrodes; and wherein the first and second ECG devices are both implanted subcutaneously in a patient; and the first ECG device is configured for measuring a plurality of the first cardiac electrical signal over a pre-specified period of time; and storing the plurality of the first cardiac electrical signal in a memory of the first ECG device; the second ECG device is configured for measuring a plurality of the second cardiac electrical signal over a pre-specified period of time; and storing the plurality of the second cardiac electrical signal in a memory of the second ECG device; requesting the first cardiac electrical signal from said first ECG device comprises requesting the plurality of the first cardiac electrical signal; receiving the first cardiac electrical signal comprises receiving the plurality of the first cardiac electrical signal from the first ECG device; requesting the second cardiac electrical signal from said second ECG device comprises requesting the plurality of the second cardiac electrical signal; and receiving the second cardiac electrical signal comprises receiving the plurality of the second cardiac electrical signal from the second ECG device. - View Dependent Claims (7, 8)
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9. A method of monitoring cardiac electrical activity, comprising
receiving a first cardiac electrical signal, the first cardiac electrical signal being from a first ECG device, said first ECG device comprising a first pair of electrodes positioned on longitudinally opposing ends of said first ECG device, wherein a first electrode of the first pair of electrodes is positioned at a location of maximum electrical potential for a first predetermined ECG signal; - and
a second electrode of the first pair of electrodes is positioned along a first equipotential line extending from the location of maximum electrical potential for the first predetermined ECG signal; receiving a second cardiac electrical signal, the second cardiac electrical signal being from a second ECG device, said second ECG device comprising a second pair of electrodes positioned on longitudinally opposing ends of said second ECG device, wherein a first electrode of the second pair of electrodes is positioned at a location of minimum electrical potential for the first predetermined ECG signal; and a second electrode of the second pair of electrodes is positioned along a second equipotential line extending from the location of minimum electrical potential for the first predetermined ECG signal; and computing a first enhanced cardiac electrical signal based on the first and second cardiac electrical signals, the first enhanced cardiac electrical signal representing a larger electrical potential difference than either the electrical potential difference between the first pair of electrodes or the electrical potential difference between the second pair of electrodes. - View Dependent Claims (10, 11, 12)
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13. A method of monitoring cardiac electrical activity, comprising
receiving a first cardiac electrical signal, the first cardiac electrical signal being from a first ECG device, said first ECG device comprising a first pair of electrodes positioned on longitudinally opposing ends of said first ECG device, wherein a first electrode of the first pair of electrodes is positioned at a location of maximum electrical potential for a first predetermined ECG signal; - and
a second electrode of the first pair of electrodes is positioned along a first equipotential line extending from the location of maximum electrical potential for the first predetermined ECG signal; receiving a second cardiac electrical signal, the second cardiac electrical signal being from a second ECG device, said second ECG device comprising a second pair of electrodes positioned on longitudinally opposing ends of said second ECG device, wherein a first electrode of the second pair of electrodes is positioned at a location of minimum electrical potential for the first predetermined ECG signal; and a second electrode of the second pair of electrodes is positioned along a second equipotential line extending from the location of minimum electrical potential for the first predetermined ECG signal; and computing a first enhanced cardiac electrical signal based on the first and second cardiac electrical signals, the first enhanced cardiac electrical signal representing a larger electrical potential difference than either the electrical potential difference between the first pair of electrodes or the electrical potential difference between the second pair of electrodes, wherein; the first ECG device is configured for measuring a plurality of the first cardiac electrical signal over a pre-specified period of time; and storing the plurality of the first cardiac electrical signal in a memory of the first ECG device; the second ECG device is configured for measuring a plurality of the second cardiac electrical signal over a pre-specified period of time; and storing the plurality of the second cardiac electrical signal in a memory of the second ECG device; receiving the first cardiac electrical signal comprises receiving the plurality of the first cardiac electrical signal, the plurality of the first cardiac electrical signal being from the memory of the first ECG device; and receiving the second cardiac electrical signal comprises receiving the plurality of the second cardiac electrical signal, the plurality of the second cardiac electrical signal being from the memory of the second ECG device. - View Dependent Claims (14, 15)
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Specification