US 2006/0079940 A1Published application

Active implantable medical device which includes a mode of resynchronization of the ventricular contractions for the treatment of the cardiac insufficiency

AssigneeELA Medical S.A.

InventorAlain Ripart

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Abstract

An active implantable medical device including a generator connected to a right ventricular electrode and a left ventricular electrode. The generator includes two output terminals connected to the ventricular electrodes, to deliver joint stimulation impulses with an adjustable inter-ventricular delay. The generator is a generator of the double chamber pacemaker type including an atrial terminal, a ventricular terminal, and circuits for jointly delivering at the atrial and ventricular terminals stimulation impulses with an adjustable atrio-ventricular delay. One of the outputs is the atrial terminal and the other is the ventricular terminal, the atrio-ventricular delay being adjusted with the value of the inter-ventricular delay.

Claims15

Dependent claims

An active implantable medical device comprising:

a first probe, comprising a right ventricular electrode;
a second probe, comprising a left ventricular electrode;
and
a generator of a double chamber pacemaker type, comprising:
a first output, connected to the right ventricular electrode of the first probe, and a second output, connected to the left ventricular electrode of the second probe;
right and left ventricular stimulation means for delivering stimulation impulses to the left and right ventricular electrodes;
and
means for establishing an adjustable inter-ventricular delay between moments of application of the stimulation impulses delivered to the right and left ventricular electrodes during the same cardiac cycle;
an atrial terminal and a ventricular terminal;
atrial and ventricular stimulation means, for delivering stimulation impulses at the atrial and ventricular terminals;
and
means for adjusting an adjustable atrio-ventricular delay between moments of application of the stimulation impulses respectively delivered at the atrial and ventricular terminals;
wherein one of the first and second outputs is the atrial terminal and the other of the first and second outputs is the ventricular terminal, and
wherein said atrio-ventricular delay is adjusted with the value of said inter-ventricular delay.

11 more elements

An active implantable medical device of the dual chamber pacemaker type having a generator of a double chamber pacemaker type, an atrial terminal and a ventricular terminal, atrial and ventricular stimulation circuits respectively delivering stimulation impulses at the atrial and ventricular terminals, and an adjustable atrio-ventricular delay between delivery of consecutive stimulation impulses at the atrial and ventricular terminals, wherein the improvement comprises:

means for establishing an adjustable inter-ventricular delay between moments of application of stimulation impulses deliverable to a right ventricle and a left ventricle during the same cardiac cycle, wherein said atrio-ventricular delay is adjusted with the value of said inter-ventricular delay, and the atrial stimulation circuit and the atrial terminal are adapted for delivery of a stimulation impulse to one of the left ventricle and the right ventricle, and the ventricular stimulation circuit and the ventricular terminal are adapted for delivery of a stimulation impulse to the other of the left ventricle and the right ventricle.

Dependencies are inferred from the claim text.