Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1996-08-16
1998-12-08
Asher, Kimberly L.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820421, A62B 1802, A62B 700, A61M 1600, F16K 3102
Patent
active
058456368
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.
REFERENCES:
patent: 5134995 (1992-08-01), Gruenke et al.
patent: 5549106 (1996-08-01), Gruenke et al.
Gruenke Roger A.
Trimble Russell L.
Asher Kimberly L.
Puritan Bennett Corporation
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