A method for providing assisted ventilation which avoids hypoxia and hypocapnia is disclosed, in which a predetermined dead space in an assisted ventilation system is provided external to the patient. The method may also be used to create normocapnia or moderate hypercapnia without causing hypoxia during...http://www.google.es/patents/US6003511?utm_source=gb-gplus-sharePatente US6003511 - Respiratory circuit terminal for a unilimb respiratory device
Respiratory circuit terminal for a unilimb respiratory device
