Sealed backpressure attachment device for nebulizer
First Claim
1. An attachment device for nebulizer designed to deliver aerosol medication for inhalation by a user, the attachment device comprising:
- an elongated flexible resilient conduit having a first open end and a second open end;
a one-way valve mounted on the first open end of the conduit for admitting ambient air into the conduit while preventing escape of gas from the first open end of the conduit, said one-way valve being provided with an inlet opening oriented in a substantially co-axial relationship with a central longitudinal axis of said conduit;
a mouthpiece detachably secured on the second open end of the conduit for engaging by a mouth of the user during use of the device;
a calibrated outlet pressure valve mounted in fluid communication with an interior of said conduit, said valve allowing escape of a gas flow from said conduit during exhalation of the user after said gas flow pressure exceeds a predetermined value;
means for attaching the conduit to a nebulizer in fluid communication with said nebulizer; and
a means for attaching said outlet pressure valve to said conduit said means comprising a four-way manifold positioned on said conduit and retaining said outlet pressure valve opposite said means for attaching the conduit to the nebulizer.
1 Assignment
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Accused Products
Abstract
An attachment for use with a nebulizer for delivery of aerosol medication to respiratory airways of a user has an elongated conduit provided with a one-way valve for admitting ambient air on one of its ends and a mouthpiece—on its opposite end. A calibrated pressure exhalation valve allows escape of exhaled gas once the pressure in the conduit exceeds a pre-determined setting of the valve. The outlet valve is spring-loaded and allows for various calibrations. The conduit is attachable to a nebulizer and facilitates build-up of positive pressure in the user'"'"'s sealed airways to help maintain the airways distended for more effective delivery of the medication.
164 Citations
1 Claim
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1. An attachment device for nebulizer designed to deliver aerosol medication for inhalation by a user, the attachment device comprising:
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an elongated flexible resilient conduit having a first open end and a second open end;
a one-way valve mounted on the first open end of the conduit for admitting ambient air into the conduit while preventing escape of gas from the first open end of the conduit, said one-way valve being provided with an inlet opening oriented in a substantially co-axial relationship with a central longitudinal axis of said conduit;
a mouthpiece detachably secured on the second open end of the conduit for engaging by a mouth of the user during use of the device;
a calibrated outlet pressure valve mounted in fluid communication with an interior of said conduit, said valve allowing escape of a gas flow from said conduit during exhalation of the user after said gas flow pressure exceeds a predetermined value;
means for attaching the conduit to a nebulizer in fluid communication with said nebulizer; and
a means for attaching said outlet pressure valve to said conduit said means comprising a four-way manifold positioned on said conduit and retaining said outlet pressure valve opposite said means for attaching the conduit to the nebulizer.
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Specification