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US 2026/0273202 A1Published application
Dry powder inhalers and interfaces for improved aerosol delivery to children
AssigneeVirginia Commonwealth University
InventorsWorth LONGEST, Dale FARKAS, Karl BASS, Michael HINDLE
Life of this patent
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Abstract
Exemplary embodiments include dry powder inhalers (DPIs) and patient interfaces which improve delivery of aerosols to patients, especially children.
Claims17
A method of administering a drug to a patient, comprising
- aerosolizing the drug in a vertical aerosolization chamber before forming an aerosol jet;
- and
- forcing the aerosol jet from at least one drug aerosol inlet orifice through a 3D rod array arranged in a lumen that has at least one cross-sectional dimension which has an increase relative a size of the at least one drug aerosol inlet orifice before the aerosol reaches the patient, wherein the increase in the at least one cross-sectional dimension begins at or before the at least one drug aerosol inlet orifice.
An air jet dry powder inhaler (DPI), comprising
- a fixed position elongate aerosolization chamber with a longitudinal axis;
- one or more inlets for forming at least one cross flow air jet with an air jet axis, wherein the air jet axis is at a non-zero angle with the longitudinal axis of the aerosolization chamber, wherein the one or more inlets are flow passages or first orifices, wherein the one or more inlets have a smaller width than the aerosolization chamber, and wherein the aerosolization chamber extends both above and below the one or more inlets;
- and
- one or more outlets leading off the aerosolization chamber, wherein the one or more outlets are second flow passages or second orifices.
1 more element
Dependencies are inferred from the claim text.