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US 5,632,770 AGranted
Implantable defibrillation system with lead having improved porous surface coating
AssigneeBiotronik Mess-und Therapiegeraete GmbH & Co.
InventorMax Schaldach
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Abstract
An implantable defibrillation system with an intercardial or subcutaneous defibrillation electrode is provided wherein the defibrillation electrode includes portions with a porous surface coating having an active surface area substantially larger than a surface area resulting from the basic geometrical shape of the electrode.
Claims14
An implantable defibrillation system with an intracardial or subcutaneous defibrillation electrode, the improvement wherein
- the defibrillation electrode includes portions with a porous surface coating comprising one of an inert element, an inert chemical compound, and an inert alloy, the porous surface coating having a fractal three dimensional geometry and an active surface area that is greater by a factor of at least 1000 than a corresponding surface area resulting from the basic geometrical shape of the electrode.
The defibrillation system wherein the surface coating is applied to the electrode by thin-film technology.
Dependencies are inferred from the claim text.