A tracheal assembly comprises an endotracheal tube and a tracheal shield. The tracheal shield has a stiff rod extending along the endotracheal tube, and a stop at the machine end of the shield which limits the extent of insertion of the shield into the tube. At its patient end, the shield has a plate...http://www.google.se/patents/US5996582?utm_source=gb-gplus-sharePatent US5996582 - Tracheal assemblies
