Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
104 words
An electrode system for a defibrillator with three electrodes, at least two (12, 18) of which being intravascular and one (12) of said at least two electrodes adapted to be placeable in the inferior vena cava (6), the third electrode consisting either of a patch electrode (17) placeable in the region of the left ventricle (7) or of an additional intravascular electrode (14) adapted to be placeable in the superior vena cava (2), wherein the second (18) of the at least two electrodes (12, 18) is adapted to be placeable in the coronary sinus (8) including its prolongation along the base of the heart.
Claim 2
Dependent Claim
50 words
An electrode system of claim 1, wherein at least two, of the electrodes (12, 14, 18) intended for placement in the inferior vena cava (6), superior vena cava (2) the coronary sinus (8) including its prolongation along the base of the heart respectively, are arranged on a common electrode cable.
Claim 3
Dependent Claim
35 words
An electrode system of claim 1 or 2, wherein the intravascular electrodes (12, 14, 18) in the electrode system have means for affixation to the inner wall of the vein in which they are sited.
Claim 4
Dependent Claim
55 words
An electrode system of claim 3, wherein the fixation means is achieved when the electrode (12, 14, 18) in the affixed position has the shape of hollow, resilient cylinder whose diameter exceeds the diameter of the vein enough for the electrode to press against and affix the electrode to the inner wall of the vein.
Claim 5
Dependent Claim
24 words
An electrode system of claim 4, wherein the electrode consists of a helix whose windings form at least part of the cylinder's mantle surface.
Claim 6
Dependent Claim
24 words
An electrode system of any of the above claims, wherein the patch electrode (17) can consist at least in part of the defibrillator's enclosure.
Claim 7
Dependent Claim
78 words
An electrode system of any of the above claims, wherein the electrode intended for placement in the coronary sinus (8) and its prolongation along the base of the heart consists of at least two sub-electrodes, the distal of the at least two sub-electrodes being connected to the proximal sub-electrode by a prolongation of the electrode cable (16), the sub-electrodes being placeable at separate sites on the coronary sinus (8) including its prolongation along the base of the heart.