Apparatus and method using ATP return cycle length for arrhythmia discrimination
AssigneeMedtronic, Inc.
InventorsVinod Sharma, Paul J. Degroot, Rahul Mehra
Life of this patent
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Abstract
An apparatus for discriminating between cardiac events that includes an input circuit receiving signals indicative of the cardiac events, a first output circuit generating pulses in response to the received signals, and a microprocessor determining whether a signal received by the input circuit subsequent to the generated pacing pulses corresponds to a predetermined cardiac event in response to an elapsed time period between the generated pulses and the subsequently received signal and a predetermined discrimination threshold.
Claims42
An apparatus for discriminating between cardiac events, comprising:
- an input circuit receiving signals indicative of the cardiac events;
- a first output circuit generating pulses in response to the received signals;
- and
- a microprocessor determining whether a signal received by the input circuit subsequent to the generated pacing pulses corresponds to a first predetermined cardiac event in response to an elapsed time period (T3) between the generated pulses and the subsequently received signal and a predetermined discrimination threshold (T4).
An apparatus for discriminating between cardiac events, comprising:
- an input circuit receiving signals indicative of the cardiac events;
- a first output circuit generating pulses in response to the input circuit receiving consecutive signals, separated by a predetermined time period (T1), corresponding to the rate of a first predetermined cardiac event;
- and
- a microprocessor determining whether a signal received by the input circuit subsequent to the generated pacing pulses corresponds to the first predetermined cardiac event in response to an elapsed time period (T3) between the generated pulses and the subsequently received signal and a predetermined discrimination threshold (T4).
A method of discriminating between cardiac events, comprising:
- receiving signals indicative of the cardiac events;
- generating pulses in response to the received signals;
- and
- determining that a signal received by the input circuit subsequent to the generated pacing pulses corresponds to a first predetermined cardiac event in response to an elapsed time period (T3) between the generated pulses and the subsequently received signal and a predetermined discrimination threshold (T4).
Dependencies are inferred from the claim text.