초록 ▼

A pair of defibrillation patch electrodes is adapted for close fitting placement over the ventricles of the heart, either epicardially or pericardially. One of the patches is contoured to fit over the right ventricle, and the other is contoured to fit over the left ventricle in spaced relationship t

A pair of defibrillation patch electrodes is adapted for close fitting placement over the ventricles of the heart, either epicardially or pericardially. One of the patches is contoured to fit over the right ventricle, and the other is contoured to fit over the left ventricle in spaced relationship to the first patch to form a substantially uniform gap between confronting borders of the two. The gap is sufficiently wide to avoid the shunting of current between edges of the patches upon delivery of defibrillation shocks, as well as to accommodate the ventricular septum and the major coronary arteries therein. The size and shape of the patches is such that they encompass most of the ventricular myocardium within and between their borders, to establish a nearly uniform potential gradient field throughout the entire ventricular mass when a defibrillation shock is delivered to the electrodes. Flat versions of the two electrodes provide ease of manufacture.

대표청구항 ▼

A pair of implantable defibrillation patch electrodes to deliver defibrillation shocks to the heart, comprising a first patch electrode contoured to fit over and substantially conform to the shape of the right ventricle of the heart, a second patch electrode contoured to fit over and substantially c

A pair of implantable defibrillation patch electrodes to deliver defibrillation shocks to the heart, comprising a first patch electrode contoured to fit over and substantially conform to the shape of the right ventricle of the heart, a second patch electrode contoured to fit over and substantially conform to the shape of the left ventricle of the heart in spaced relationship to the first patch electrode to form a substantially equidistant gap between confronting borders of the two patch electrodes in the region along the ventricular septum, each of the patch electrodes including means for delivering the defibrillation shocks to the respective electrodes, and each of the patch electrodes being of a size and shape to encompass a substantial portion of the respective ventricular myocardium within the borders of the respective patch electrode, to establish a substantially uniform potential gradient field throughout the entire ventricular mass when a defibrillation shock is delivered to the electrodes.