Subcutaneous implantable cardiac defibrillation system

#This application claims the benefit of and priority to French Application No. 1907532, filed Jul. 5, 2019, which is incorporated herein by reference in its entirety.

#The present invention relates to a subcutaneous implantable cardiac defibrillation system.

#Conventional implantable automatic defibrillators, i.e. of transvenous type, also abbreviated ICD for “Implantable Cardioverter-Defibrillator”, comprise a defibrillation pulse generator and a microprocessor control unit housed in a metal case usually implanted in the chest pocket. This box is connected to one or more leads which are introduced into the subclavian vein where they finally reach the heart. Inside the heart, the distal ends of the leads are attached to the inner walls of the heart chambers, where they can record electrograms (EGMs) reflecting the electrophysiological functioning of the heart. Based on these, defibrillation therapy (defibrillation shock) is administered (or discontinued) to end a life-threatening ventricular tachyarrhythmia, such as ventricular tachycardia and ventricular fibrillation.

#The invention and its advantages will be explained in more detail below by means of preferred embodiments and based in particular on the following accompanying figures, wherein:

#FIG. 1 represents a schematic plot of a normal electrocardiogram;

#FIG. 2 represents a schematic view of a subcutaneous implantable cardiac defibrillation system according to the present invention;

#The invention will now be described in more detail using advantageous embodiments in an exemplary method and with reference to FIGS. 2 and 3. The embodiments described are simply possible configurations and it should be borne in mind that the individual characteristics as described above can be provided independently of each other or can be omitted altogether when practicing the present invention.

#FIG. 2 illustrates a cardiac defibrillation system implantable under the skin 10. FIG. 3 illustrates said system 10 in an implanted state.

#The subcutaneous implantable cardiac defibrillation system 10 comprises a pulse generator housing 12, to which a subcutaneous implantable lead 14 is connected. The subcutaneous implantable cardiac defibrillation system 10 is capable of delivering a defibrillation shock.