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1. (WO2018130723) TESTING METHOD FOR A DRY POWDER INHALER

Pub. No.:    WO/2018/130723    International Application No.:    PCT/EP2018/051023
Publication Date: Fri Jul 20 01:59:59 CEST 2018 International Filing Date: Wed Jan 17 00:59:59 CET 2018
IPC: A61M 15/00
G01N 15/02
Applicants: NORTON (WATERFORD) LIMITED
Inventors: O'SULLIVAN, Denis Henry
BUCK, Daniel R
Title: TESTING METHOD FOR A DRY POWDER INHALER
Abstract:
The invention provides a method of testing an inhaler based on performing an optical analysis of a dry powder medicament plume discharged from the inhaler upon actuation. More particularly, embodiments of the invention comprise illuminating the dry powder plume with a source of electromagnetic radiation and capturing one or more images of a pattern of radiation reflected or diffracted by the illuminated plume. The images are subsequently processed to determine and/or analyse one or more geometric and/or dynamic characteristics of the plume.