A device positionable on a vascular structure for stimulating the vascular structure to elicit a physiologic response. The device includes a base having generally opposed inner and outer surfaces and a hydrophilic material presented on at least a portion of the inner surface presenting a lubricious surface...http://www.google.ca/patents/US20080161865?utm_source=gb-gplus-sharePatent US20080161865 - IMPLANTABLE VESSEL STIMULATION DEVICE COATING
