Medical device for high resolution mapping using localized matching
First Claim
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1. A medical device, comprising:
- a catheter shaft with a plurality of electrodes coupled thereto, wherein the plurality of electrodes are disposed within a body chamber and are configured to;
sense a first set of signals from a first location of the body chamber during a first time period and sense a second set of signals from a second location of the body chamber during a second time period;
a processor communicatively coupled to the plurality of electrodes, wherein the processor is configured to;
receive first signals from the catheter corresponding to the first set of sensed signals;
receive second signals from the catheter corresponding to the second set of sensed signals;
characterize the first received signals over the first time period;
characterize the second received signals over the second time period;
compare the first characterized signals to the second characterized signals; and
match a first signal from the first characterized signals with a second signal from the second characterized signals.
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Abstract
Medical devices and methods for using medical devices are disclosed. An example mapping medical device may include a catheter shaft with a plurality of electrodes. The catheter shaft may be coupled to a processor. The processor may be capable of collecting a first set of signals from a first location, collecting a second set of signals from a second location, characterizing the first set of signals over a first time period, characterizing the second set of signals over a second time period, comparing the first set of signals to the second set of signals and matching a first signal from the first set of signals with a second signal from the second set of signals.
338 Citations
20 Claims
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1. A medical device, comprising:
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a catheter shaft with a plurality of electrodes coupled thereto, wherein the plurality of electrodes are disposed within a body chamber and are configured to;
sense a first set of signals from a first location of the body chamber during a first time period and sense a second set of signals from a second location of the body chamber during a second time period;a processor communicatively coupled to the plurality of electrodes, wherein the processor is configured to; receive first signals from the catheter corresponding to the first set of sensed signals; receive second signals from the catheter corresponding to the second set of sensed signals; characterize the first received signals over the first time period; characterize the second received signals over the second time period; compare the first characterized signals to the second characterized signals; and match a first signal from the first characterized signals with a second signal from the second characterized signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for mapping electrical activity within the heart, the method comprising:
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providing a catheter having a first electrode and a plurality of additional electrodes adjacent to the first electrode; sensing one or more signals over a time period with the first electrode and with the additional electrodes; calculating one or more latencies between the first electrode and one or more of the plurality of electrodes over the time period; using the one or more latencies to determine one or more directions of the one or more signals between the first electrode and one or more of the plurality of electrodes; and determining a dominant direction signal from the one or more directions, wherein the dominant direction signal is representative of a direction of a wavefront propagation. - View Dependent Claims (18, 19, 20)
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Specification