Aerosolization device
View Patent ↗An aerosol transfer device for medical aerosol generators includes a body, fluidically coupled to a nebulizer and to a patient interface. An ambient air intake is formed into a lower body. The body is shaped and configured to optimize mixing of ambient air from the ambient air intake and the aerosol generated by the nebulizer, resulting in the formation of an aerosol plume having optimum characteristics for delivery of the aerosol to the patient's pulmonary system, such as the central or deep lung regions. The shape and dimensions of the body are further designed to minimize aerosol deposition, thus improving delivery efficiency.
1. An aerosol device comprising:
an aerosol accumulation chamber having a central vertical axis, an upper end and a lower end, the upper end comprising a nebulizer port and a patient interface port, the lower end comprising an air inlet port, wherein the air inlet port is oriented to be non-aligned with said central vertical axis, said air inlet port further comprising a valve;
an outer shell, substantially surrounding the at least said lower end of the aerosol accumulation chamber, the outer shell having one or more air inlet passages about a periphery thereof wherein said one or more air inlet passages is above said air inlet port, said patient interface port fluidically coupled to a patient interface device, and an aerosolized exhaust port intermediate to said patient interface device and to said patient interface port; and
a vibrating mesh nebulizer that is fluidically coupled to said nebulizer port.
2. The device of claim 1 , wherein the accumulation chamber has a dimension of at least 10 cm.
3. The device of claim 1 , wherein the accumulation chamber comprises a tapered shape with a circular cross section.
4. The device of claim 1 wherein the aerosol accumulation chamber comprises a conical shape.
5. The device of claim 1 wherein the aerosol accumulation chamber comprises a frustoconical shape.
6. The device of claim 1 wherein the aerosol accumulation chamber comprises a bifrustrum shape.
7. The device of claim 1 , wherein said air inlet port is oriented about ninety degrees to said central vertical axis.
8. The device of claim 1 , wherein the outer shell is generally cylindrical.
9. The device of claim 6 wherein the outer shell further comprises a gas reservoir, disposed about a lower end thereof.
10. The device of claim 1 , wherein the aerosolized exhaust port comprises a valve.
11. The device of claim 1 , wherein the aerosolized exhaust port comprises at least one orifice.
12. The device of claim 11 , wherein the orifice further comprises a filtration medium, covering said orifice.