An intermittent positive pressure breathing device for neonatal infants. The device is connected to a supply of pressurized oxygen supplied through a first conduit. The first conduit terminates in a venturi nozzle by which ambient air is entrained so that a mixture of oxygen and ambient air at a desired...http://www.google.es/patents/US6609518?utm_source=gb-gplus-sharePatente US6609518 - Breathing aid device
