An apparatus and method for facilitating the respiration of a patient are disclosed which are particularly useful in treating mixed and obstructive sleep apnea and certain cardiovascular conditions, among others, by increasing nasal air pressure delivered to the patient's respiratory passages just prior...http://www.google.es/patents/US5549106?utm_source=gb-gplus-sharePatente US5549106 - Inspiratory airway pressure system using constant pressure and measuring flow signals to determine airway patency
Inspiratory airway pressure system using constant pressure and measuring ...