Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1993-09-30
1995-08-08
Asher, Kimberly L.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820712, 12820525, A62B 902, A62B 1822, A62B 1810
Patent
active
054389810
ABSTRACT:
A self-regulating valve device adapted for use with respiratory equipment of a type which produces a pressurized flow of breathing gas. The valve device affords automatic access to the ambient atmosphere in the event of respiratory equipment malfunction and includes a primary inlet, a secondary inlet and an outlet. The primary inlet is adapted for connection to a ported exhalation valve which, in turn, is connected to one end of an elongated flexible tube, the opposite end of which is connected to a gas flow generator. The outlet, in turn, is connected to the inlet of an oral, nasal or oral
asal respiratory mask respectively adapted to cover the patient's mouth, nose or mouth and nose. The valve device further comprises a pressure-responsive valve element for regulating gas flow into the inlet of the respiratory mask. In accordance with a further aspect of the invention, there is additionally provided a diffuser element positioned generally at the valve outlet/mask inlet junction. The diffuser element diffuses or disperses the flow of incoming gas (pressurized or ambient) to the mask, whereby the patient's comfort is enhanced while undergoing treatment for sleep apnea, or other respiratory treatment.
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Devinney Pat
Kaigler William
Pujol John R.
Serowski Andrew
Starr Eric W.
Asher Kimberly L.
Respironics Inc.
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