Atrial defibrillator, lead systems, and method

Details Atrial defibrillator, lead systems, and method Atrial defibrillator, lead systems, and method

A - Human Necessities

61

N

A61N 1/39 (2006.01) A61N 1/05 (2006.01)

Patent

CA 2434313

An implantable atrial cardioverter is arranged to be powered by a depletable power source for delivering electrical energy to the atria of a human heart in need of cardiversion. The atrial cardioverter comprises: sensing means for sensing electrical activations of the heart, the sensing means being continuously operable. Means are provided, responsive to the sensing means, for determining the time intervals between said sensed electrical activations. The cardioverter also comprises atrial arrhythmia detector means for detecting the presence of an atrial arrhythmia of the heart, disable means for maintaining the atrial arrhythmia detector means normally disabled to avoid excessive consumption of the depeletable power source, and enable means for enabling said atrial arrhythmia detector means responsive to the determined time intervals. Delivery means are provided, responsive to the atrial arrhythmia detector means for delivering the electrical energy to the atria of the heart in response to the atrial arrhythmia detector means detecting atrial arrhythmia of the heart.

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