Method and apparatus for inducing defibrillation in a patient using a T-shock waveform

摘要

A shock is delivered on the T-wave of a patient's cardiac waveform by first detecting the occurrence of a QRS complex in the waveform and using that detection to set up for detection of the following T-wave. Narrowband filtering is used to first select the QRS complex and thereafter the T-wave, while peak detection is employed to define the actual occurrence of the respective waveforms. The capability is also provided to deliver the shock at a manually selected interval after QRS detection or after a coupling interval in a pacing application.