A rongeur has a detachable crossbar to enhance cleaning and sterilization. A pin in a slot on one of the rongeur's handles is moveable out of the slot to permit extended retraction of the crossbar to a position in which it may disengage from the shank of the rongeur....http://www.google.fr/patents/US6685710?utm_source=gb-gplus-shareBrevet US6685710 - Rongeur with detachable crossbar