| 摘要 |
An implantable arrhythmia treatment system includes a sensor which generates an electrical signal corresponding to a physiological characteristic of a patient, the physiological characteristics and thus the electrical signal exhibit a change given the onset of an arrhythmia. The electrical signal is supplied to a fibrillation detector in an implantable housing, which initiates an appropriate treatment sequence upon the detection of the onset of the arrhythmia. Simultaneously with initiating the treatment sequence, the fibrillation detector causes, either by direct connection or by telemetry communication, the generation of an alarm signal which informs the patient that the sequence has been initiated, so that the patient knows that a treatment pulse is about to be released. The implantable unit includes circuitry responsive to a signal externally generated by the patient which prevents the release of the defibrillating pulse. If the patient feels no need for such a pulse, i.e. if the onset of the arrhythmia has been erroneously detected, the patient can thereby prevent the release of the pulse.
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