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US 2011/0214673 A1Published application
Portable Life Support Apparatus Ventilator
OwnerEdward Masionisinventor
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Abstract
In one aspect, the invention relates to a portable life support device including a ventilator comprising a ventilator bag which combines a pressure relief valve and blow through valve.
Claims18
A life support apparatus, including a ventilator, the ventilator comprising:
- (a) a contractible inspiratory reservoir which is adapted to be contracted to expel a reservoir gas responsive to a source of fluid pressure, the contractible inspiratory reservoir including an aperture for establishing a fluidly efficient connection to an inspiratory conduit connected to a user interface;
- (b) an inspiratory reservoir contractor operatively associated with at least a portion of the exterior surface of the contractible inspiratory reservoir for exerting a compressive force on the inspiratory reservoir, the inspiratory reservoir contractor including a port fluidly connected to a source of breathable gas through which a breathable gas (i.e. safe for breathing) under pressure is introduced against the exterior surface of the inspiratory gas reservoir to compress the inspiratory reservoir;
- (c) a valve located in the contractible inspiratory reservoir or inspiratory reservoir contractor through which the breathable gas under pressure is adapted to be channeled into the inspiratory conduit for inspiration by the user in the event that the user is unable to get sufficient gas for inspiration in the course of operation of the ventilator.
The life support apparatus according to any of the preceding claims, wherein the contractible inspiratory reservoir comprises a pressure relief valve that opens to reduce pressure in the contractible inspiratory reservoir when the pressure inside the contractible inspiratory reservoir exceeds that of the containment chamber.
Dependencies are inferred from the claim text.