IP Library Granted Patent US 11,376,380
Granted Patent B2
US 11,376,380 · App. 16/929,772 · Granted Jul 5, 2022

Aerosol delivery device and method for manufacturing and operating the same

Inventor: Doug Biette (Cary, NC)
Assignee: United Therapeutics Corporation
A61M15/0021A61M11/001A61M11/002A61M11/005B05B17/0615B05B17/0669A61M2207/00
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Quick Facts
Patent No.
US 11,376,380
App. No.
16/929,772
Granted
Jul 5, 2022
Kind
B2
Abstract

An adjustable aerosol delivery device includes an active liquid container, a carrier liquid container, a piezo disc mounted with a flexible gasket relative to the carrier liquid container, an oscillator configured to generate an ultrasonic wave that causes the piezo disc to oscillate and transmit the oscillations through the carrier liquid to the active liquid to cause at least a portion of the active liquid to become an aerosol, a bushing fixed relative to the carrier liquid container via a fixing portion that conforms to and mates with an entire perimeter of a fixing section of the bushing, and a fastener extending through the piezo disc housing and into the bushing. The fastener is configured to be loosened or tightened to manipulate a compression of the gasket to adjust a particle size of the aerosol. A pull force of the bushing is greater than a counter force of the gasket.

Claims (25)

1. A method of manufacturing an aerosol delivery device comprising:

disposing an active liquid container within a carrier liquid container, wherein the active liquid container is configured to contain an active liquid having an active substance dissolved therein and the carrier liquid container is configured to contain a carrier liquid;

mounting a piezo disc with a flexible gasket relative to the carrier liquid container, wherein the piezo disc is configured to be oscillated by ultrasonic waves generated by an oscillator and transmit the oscillations through the carrier liquid to the active liquid to cause at least a portion of the active liquid to become an aerosol; and

manipulating a compression of the gasket to adjust a particle size of the aerosol to be produced, wherein manipulating the compression of the flexible gasket includes increasing the compression of the flexible gasket to reduce the particle size of the aerosol or decreasing the compression of the flexible gasket to increase the particle size of the aerosol to be produced.

2. The method of claim 1 , wherein mounting the piezo disc relative to the active liquid container includes inserting at least one fastener through a piezo disc housing holding the piezo disc and into a bushing fixed relative to the carrier liquid container, and

wherein a pull force of the bushing is greater than a counter force of the gasket.

3. The method of claim 2 , wherein fixing the bushing relative to the carrier liquid container comprises providing a fixing portion that conforms to and mates with an entire perimeter of a fixing section of the bushing to fix the bushing relative to the carrier liquid container.

4. The method of claim 3 , wherein fixing the bushing relative to the carrier liquid container comprises insert molding the fixing portion such that the fixing portion conforms to and mates with the entire perimeter of the fixing section of the bushing.

5. The method of claim 3 , wherein fixing the bushing relative to the carrier liquid container comprises:

providing an insert hole in a base of the carrier liquid container, the insert hole having a diameter greater than a diameter of the bushing;

inserting the bushing into the insert hole; and

introducing adhesive material into the insert hole between an exterior surface of the bushing and the carrier liquid container, the adhesive material conforming to and mating with the entire perimeter of the fixing section of the bushing.

6. The method of claim 2 , wherein manipulating the compression of the flexible gasket comprises loosening or tightening the at least one fastener.

7. An adjustable aerosol delivery device, comprising:

an active liquid container configured to contain an active liquid having an active substance dissolved therein;

a carrier liquid container configured to receive a carrier liquid;

a piezo disc disposed in a piezo disc housing and mounted with a flexible gasket relative to the carrier liquid container;

an oscillator configured to generate an ultrasonic wave that causes the piezo disc to oscillate and transmit the oscillations through the carrier liquid to the active liquid to cause at least a portion of the active liquid to become an aerosol;

a bushing fixed relative to the carrier liquid container via a fixing portion, the fixing portion conforming to and mating with an entire perimeter of a fixing section of the bushing; and

at least one fastener extending through the piezo disc housing and into the bushing,

wherein the at least one fastener is configured to be loosened or tightened to manipulate a compression of the gasket to adjust a particle size of the aerosol, wherein manipulating a compression of the gasket includes increasing the compression of the flexible gasket to reduce the particle size of the aerosol and decreasing the compression of the flexible gasket to increase the particle size of the aerosol.

8. The adjustable aerosol delivery device of claim 7 , wherein the bushing is insert molded in the fixing portion such that the fixing portion conforms to and mates with the entire perimeter of the fixing section of the bushing.

9. The adjustable aerosol delivery device of claim 7 , wherein the fixing portion includes adhesive material that conforms to and mates with the entire perimeter of the fixing section of the bushing.

10. The adjustable aerosol delivery device of claim 7 , wherein the fixing portion includes plastic material that conforms to and mates with the entire perimeter of the fixing section of the bushing.

11. The adjustable aerosol delivery device of claim 7 , wherein a pull force of the bushing is greater than a counter force of the gasket.

Continuity (2)
Division 15401411 · Jan 9, 2017
Related Publication 20200345956A1 · Nov 5, 2020
Cited By (4)
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