Parion Sciences, Inc.

Glenmark Pharmaceuticals Limited

Stuart Robert Abercrombie

Michael Ross Johnson

Richard C Boucher

James B Fink

Anthony James Hickey

Ulhas R Dhuppad

Rachel Striebig

Scott Alexander Lewis

William Robert Thelin

Tomas Navratil

Matthew Allen

Mark Jeffrey Edhouse

Lai Chiu Tang

Brian Button

Philip Jerome Driver

Paul Boucher

Nicholas O Heijne

Donal Joseph Taylor

Jonathan Hugh Wilkins

Thomas Stephen Collings

John William Sanford Hale

Brian M Button

Matthew David Allen

Rachel Victoria Striebig

The present invention relates to a dry powder inhaler for administering a medicament via oral inhalation route to a subject. Particularly, the dry powder inhaler according to present invention is suitable for delivering accurate doses of a medicament in different ranges of inspiratory capacity of the subject.

Dry powder inhaler

An aerosol preparation assembly includes an entrainment chamber defining an entrainment volume. The entrainment chamber includes a gas inlet port, an aerosol inlet port and an outlet port. The entrainment chamber is configured such that a velocity of a flow of a gas within the entrainment volume is less than a velocity of the flow of the gas within the gas inlet port. The entrainment chamber is configured such that at least a portion of inlet aerosol is entrained into the flow of the gas within the entrainment volume to produce an entrained aerosol flow at the outlet port. The particle selection chamber is configured to receive the entrained aerosol flow and produce an outlet aerosol flow. The particle selection chamber and nozzle are collectively configured such that a volumetric median diameter of the outlet aerosol flow is less than a volumetric median diameter of the inlet aerosol.

Aerosol delivery systems, compositions and methods

Growing community of inventors

Cambridge, United Kingdom

Stuart Robert Abercrombie