A guidewire replacement device having a proximal shaft section, a distal shaft section and a flexible intermediate shaft section which facilitate the articulation of the distal shaft section with respect to the proximal shaft section. The intermediate shaft section has as aperture for the egress or exit...http://www.google.com.au/patents/US5891056?utm_source=gb-gplus-sharePatent US5891056 - Guidewire replacement device with flexible intermediate section