Implantable cardiac defibrillator employing a digital waveform a

Details Implantable cardiac defibrillator employing a digital waveform a Implantable cardiac defibrillator employing a digital waveform a

1989-05-19

1991-05-14

Jaworski, Francis

Surgery

Truss

Pad

A61N 100

Patent

active

050147013

ABSTRACT:
An implantable medical device includes electrodes coupled to a patient's heart and sensing circuitry having inputs connected to the electrodes for sensing cardiac electrical signals. The sensing circuitry includes a digital waveform analyzer system which performs direct analysis of digitized ECG heart signals from the atrial and/or ventricular channels. This eliminates the need for the system microprocessor to perform direct analysis on raw ECG data. The benefit being that complex software algorithms are not required, saving microprocessor memory space. System current drain is also reduced since the microprocessor need not be active during every ECG sample.

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