Inspiratory airway pressure system using constant pressure and m

Details Inspiratory airway pressure system using constant pressure and m Inspiratory airway pressure system using constant pressure and m

1993-07-21

1996-08-27

Asher, Kimberly L.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820421, 12820426, 128719, A61M 1600, A62B 704, F16K 3102, F16K 3126

Patent

active

055491065

ABSTRACT:
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 to inhalation and by subsequently decreasing the pressure to ease exhalation effort. The preferred apparatus includes a patient-coupled gas delivery device for pressurizing the patient's nasal passages at a controllable pressure, and a controller coupled with the delivery device having a pressure transducer for monitoring the nasal pressure and a microcontroller for selectively controlling the nasal pressure. In operation, the controller determines a point in the patient breathing cycle just prior to inhalation and initiates an increase in nasal pressure at that point in order to stimulate normal inhalation, and subsequently lowers the nasal pressure to ease exhalation efforts.

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