Anchoring mechanisms for limiting travel of an intravascular device along an elongated member such as a guidewire or guide catheter are disclosed. The anchoring mechanism may include a leaf spring that can be actuated between an unlocked position and a locked position. In the unlocked position, the leaf...http://www.google.fr/patents/US6902572?utm_source=gb-gplus-shareBrevet US6902572 - Anchoring mechanisms for intravascular devices