Sorin Crm Sas

Ela Medical S.a.

Gérard Dreyfus

Christine Henry

Renzo Dal Molin

Amel Amblard

Rémi Dubois

Rémi DuBois

Sylvain Christophle-Boulard

Charles-Henri Cappelaere

Jinan El Arab

Paola Bouchet

Pierre Roussel

Amel Amblart

The system includes an active medical device with means for delivering defibrillation shocks; means for continuous collection of the patient current cardiac activity parameters; and evaluator means with neuronal analysis comprising a neural network with at least two layers. This neural network comprises upstream three neural sub-networks receiving the respective parameters divided into separate sub-groups corresponding to classes of arrhythmogenic factors; and downstream an output neuron coupled to the three sub-networks and capable of outputting an index of risk of ventricular arrhythmia. The risk index is compared with a given threshold, to enable or disable at least one function of the device in case of crossing of the threshold.

Neural network system for the evaluation and the adaptation of antitachycardia therapy by an implantable defibrillator

An active medical device able to discriminate between tachycardias of ventricular origin and of supra-ventricular origin. Two distinct temporal components (UnipV, BipV) are obtained corresponding to two EGM signals of ventricular electrograms. The diagnosis operates in at least two-dimensional space to determine, from the variations of one temporal component as a function of the other temporal component, a 2D characteristic representative of a heart beat and, this, for a reference beat collected in Sinus Rhythm (SR) in the absence of tachycardia episodes, and for a heart beat in Tachycardia. The discrimination of the tachycardia type, VT or SVT, is then realized by a classifier operating a comparison of the two current and reference 2D characteristics.

Discriminating between tachycardias of ventricular origin and supra-ventricular origin, methods and apparatus

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Gif sur Yvette, France

Gérard Dreyfus