Implantable defibrillation system with lead having improved porous surface coating
First Claim
1. An implantable defibrillation system with an intracardial or subcutaneous defibrillation electrode, the improvement whereinthe 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.
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Accused Products
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.
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Citations
14 Claims
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1. 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.
- 7. The defibrillation system wherein the surface coating is applied to the electrode by thin-film technology.
Specification