A coupling wire guide structured to be slidably coupled to a previously introduced wire guide. The coupling wire guide includes a main body and a tip portion. The tip portion includes an insert member and a distal tip. The insert member is connected to the main body, and the distal tip is connected to...http://www.google.fr/patents/US20070191790?utm_source=gb-gplus-shareBrevet US20070191790 - Wire guide having distal coupling tip