A method and apparatus for installing, removing or exchanging catheters into and out of a medical patient's body, including the vascular system, incorporates a slotted guide track for guiding and controlling sliding movement of a catheter while maintaining the relative position of a guidewire. The guide...http://www.google.co.uk/patents/US5976154?utm_source=gb-gplus-sharePatent US5976154 - Catheter exchange method and apparatus
