A pain management system for the infusion of drug to a wound site includes a guide needle placed within an introducer tubing. The needle and tubing are pierced through the patient's skin, after which the guide needle is withdrawn. The infusion catheter is threaded through the introducer tubing and advanced...http://www.google.es/patents/US7465291?utm_source=gb-gplus-sharePatente US7465291 - Method of fluid delivery and catheters for use with same
Method of fluid delivery and catheters for use with same