Patent ID: 6609515
Filing Date: 2003-08-26
Classification: A61M

Abstract:
A sealed back pressure attachment device for nebulizer designed to deliver aerosol medication for inhalation by a user, the attachment device comprising:an elongated 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, wherein said conduit has a central longitudinal axis and wherein said one-way valve is provided with an inlet opening oriented in a substantially co-axial relationship with the 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 gas from said conduit during exhalation of the user, said valve creating a pre-determined amount of resistance to an exhalation gas flow to facilitate keeping of user's airways distended for delivery of medication from said nebulizer; and a means for attaching the conduit to a nebulizer in fluid communication with said nebulizer.