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US 8,508,732 B2Granted
Inhaler adaptor for a laser diffraction apparatus and method for measuring particle size distribution
AssigneeMannKind Corporation
InventorsBenoit Adamo, Saiyam Shah, Chad C. Smutney
Life of this patent
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Abstract
The present disclosure relates to an improved device and methods for adapting to a laser diffraction apparatus used for measuring particle size distribution and density of the plume of a powder composition emitted from a dry powder inhaler.
Claims12
A device configured to adapt to a laser diffraction apparatus, comprising:
- a chamber configured to enclose a breath powered, dry powder inhaler having a mouthpiece and a body, and wherein said chamber comprises a distal end including an inlet port and a proximal end including an outlet port, wherein the chamber defines a chamber void;
- one or more outlet end caps configured to adapt to said outlet port;
- one or more inlet end caps configured to adapt to said inlet port, said inlet port configured to receive a source of positive pressure;
- and
- an inhaler mounting means,
- wherein a breath powered, dry powder inhaler forms an air pathway between the chamber void and a chamberless or an ambient environment.
3 more elements
A device configured to adapt to a laser diffraction apparatus, comprising:
- a chamber configured to enclose a breath-powered, dry powder inhaler;
- said chamber having a distal end and proximal end, and
- a first end cap configured to adapt to said distal end and a second end cap configured to adapt to said proximal end;
- said first end cap having an opening configured to receive a tubing which is connected to a flow controller and a source of positive pressure;
- said proximal end configured to have a mouthpiece mounting means configured to hold said breath-powered, dry powder inhaler.
2 more elements
Dependencies are inferred from the claim text.