A system controls and manages administration of a therapeutic gas, such as NO, O2, or the like, to a spontaneously breathing, non-ventilated patient such that concentrated NO is as low as reasonably possible while delivering the desired amount of NO to the distal portions of the lungs. The system includes...http://www.google.de/patents/US6668828?utm_source=gb-gplus-sharePatent US6668828 - System and elements for managing therapeutic gas administration to a spontaneously breathing non-ventilated patient
