STAGED RHYTHM DETECTION SYSTEM AND METHOD

摘要

A medical device and associated method for detecting and treating tachyarrhythmias acquires a cardiac signal using electrodes coupled to a sensing module. During an initial detection process, a shockable cardiac rhythm is detected by a processing module configured to compare the cardiac signal to a first set of detection criteria. By analyzing the cardiac signal, the processing module establishes at least one patient-specific detection threshold during the initial detection process. Upon establishing the at least one patient-specific detection threshold, the initial detection process is stopped, and a next detection process is started which includes comparing the cardiac signal to a second set of detection criteria including the at least one patient-specific detection threshold. In some embodiments, user programming of tachyarrhythmia detection parameters is not required.

主权项

1. A method for use in a medical device configured to detect and treat tachyarrhythmia, the method comprising:
acquiring a cardiac signal using a plurality of electrodes coupled to a sensing module; during an initial detection process detecting a shockable cardiac rhythm by a processing module configured to compare the cardiac signal to a first set of detection criteria; establishing, by the processing module analyzing the cardiac signal, at least one patient-specific detection threshold during the initial detection process; and upon establishing the at least one patient-specific detection threshold, stopping the initial detection process and starting a next detection process comprising comparing the cardiac signal to a second set of detection criteria comprising the at least one patient-specific detection threshold, the first set of detection criteria relating to a first set of cardiac signal features, the second set of detection criteria relating to a second set of cardiac signal features different than the first set of cardiac signal features.