US Patent 7596415 - Biocompatible electrodes based on nanotube material

http://www.freepatentsonline.com/7596415.html

This patent from Medtronic teaches a manufacturing method of a medical electrode using carbon nanotubes in a coating layer to improve electrical conduction and biocompatibility. Claim 1 reads:

1. A method for manufacturing a medical device electrode that is biocompatible with body tissue, comprising:

applying a first conductive polymer layer onto a substrate;

curing the first polymer layer to bond the first polymer layer to the substrate;

applying a second conductive polymer layer to the cured first conductive polymer layer; and

depositing a powder containing a plurality of nanostructures onto the second polymer layer, prior to curing the second conductive polymer layer to form a surface that is biocompatible with body tissue.