Wednesday, November 09, 2011

US Patent 8052989 - Method of coating a medical device with CNT foam

Carbon nanotubes have been found to be useful as coatings for stents and catheters to provide drug delivery. This patent from Boston Scientific Scimed teaches one method to provide a uniform porous coating of carbon nanotubes on implantable medical devices. Claim 1 reads:

1. A method of coating a medical device, comprising

assembling an array of vertically-oriented carbon nanotubes on a surface of the medical device;

contacting the array of carbon nanotubes with a liquid; and

evaporating the liquid to form a cellular foam made of carbon nanotubes.