US Patent:
20140069428, Mar 13, 2014
Inventors:
- Bella Vista, AU
Steven Paul Farrugia - Lugarno, AU
Aleksandr S. Nagorny - Canoga Park CA, US
Richard G. Krum - Camarillo CA, US
Joseph M. Sampietro - Tarzana CA, US
Assignee:
RESMED LIMITED - Bella Vista
International Classification:
A61M 16/00
A61M 16/06
A61M 16/20
Abstract:
A control system provides automated control of gas washout of a patient interface, such as a mask or nasal prongs. A gas washout vent assembly of the system may include a variable exhaust area, such as one defined by gears, radial exhaust revolvers and/or flow diverters for a conduit having a variable gas passage channel. The vent assembly may be attached substantially near or included with the patient interface. An actuator of the assembly, such as a solenoid, motor or voice coil, manipulates the vent assembly. The actuator may be configured for control by a processor to change the exhaust area of the vent assembly based on various methodologies including, for example, sleep detection, disordered breathing event detection and/or leak detection.