A nasal cannula for delivering air to a patient's nares. Two delivery tubes are provided to supply air to a pair of nasal inserts each of which conform to the shape of the nare. Properly placed bleed ports reduce noise and reduce carbon dioxide retained in the system. The cannula is positioned on the...http://www.google.es/patents/US20040134498?utm_source=gb-gplus-sharePatente US20040134498 - Nasal cannula
Número de solicitud: 10/689,174 Número de publicación: US 2004/0134498 A1 Fecha de presentación: 20 Oct 2003 Patente emitida: US7047974 ( Fecha de emisión 23 May 2006)
