This invention is a surgical device. It is a guidewire for use in a catheter and is used for accessing a targeted site in a lumen system of a patient's body. The guidewire or guidewire section may be of a stainless steel or a high elasticity metal alloy, preferably a Ni--Ti alloy, having specified...http://www.google.se/patents/US5749837?utm_source=gb-gplus-sharePatent US5749837 - Enhanced lubricity guidewire
