High capacitance electrode and methods of producing same
AssigneeMedtronic, Inc.
InventorJoachim Hossick-Schott
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Abstract
The present invention provides improved cathodes and methods for producing such cathodes for ultimate use in conjunction with valve metal capacitors. A family of titanium carbide cathodes according to the present invention can be produced so that they inhabit a pre-existing metallic surface such as an inner surface of a titanium casing adjacent but insulated from direct electrical communication from an anode. Foil-type valve metal anodes as well as porous valve metal anodes formed from metallic powders may be used in conjunction with the titanium cathodes of the present invention.
Claims10
A carbide cathode associated with an implantable medical device, consisting of:
- a titanium substrate;
- and
- a layer of titanium carbide disposed on a surface portion of said substrate, the carbide formed from carbonaceous material.
A carbide cathode associated with an implantable medical device, consisting of:
- a titanium substrate;
- and
- a layer of titanium carbide disposed on a surface portion of said substrate, wherein the carbide formed from graphite.
A carbide cathode associated with an implantable medical device, consisting of:
- a titanium substrate;
- and
- a layer of titanium carbide disposed on a surface portion of said substrate, the carbide formed from carbonaceous material,
- wherein a portion of the carbonaceous material remains at the layer of the titanium carbide.
Dependencies are inferred from the claim text.