Dry powder inhaler
The dry powder inhaler addresses dosing inconsistencies and deagglomeration challenges by using a rotatable disc with dosing holes and a pressure plate, achieving precise and efficient powder delivery to the lungs.
WO2026132265A1PCT designated stage Publication Date: 2026-06-25ASTRAZENECA AB
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- ASTRAZENECA AB
- Filing Date
- 2025-12-18
- Publication Date
- 2026-06-25
AI Technical Summary
Technical Problem
Existing dry powder inhalers (DPIs) face challenges in ensuring consistent and accurate dosing, as well as efficient deagglomeration of powder for targeted delivery to the lower airways, particularly in devices like the M3 Turbuhaler.
Method used
A dry powder inhaler design featuring a rotatable disc with dosing holes having a curved section, a pressure plate, and an inhalation channel that ensures precise metering and efficient delivery of powder through airflow, combined with a dose counter and ergonomic mouthpiece for enhanced user experience.
Benefits of technology
The inhaler provides reliable, efficient delivery of larger powder doses with consistent dosing accuracy and user-friendly operation, ensuring effective deagglomeration and distribution of powder to the lungs.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure EP2025088073_25062026_PF_FP_ABST
Abstract
There is described herein a dry powder inhaler device (100) for administering a powder by inhalation, comprising: a storage chamber operable to hold a supply of powder; a dosing unit (235) adjacent the storage chamber, the dosing unit comprising a rotatable disc with one or more dosing stations, each dosing station comprising less than 5 dosing holes (250) through the rotatable disc, each dosing hole configured to receive and transfer a metered dose of the powder from the storage chamber to an inhalation channel, wherein each of the dosing holes has a side wall profile comprising a curved section; a pressure plate (240) urged against the dosing unit; and an inhalation channel in fluid communication with the dosing unit, wherein the inhalation channel directs the powder entrained in airflow to a user upon inhalation.
Need to check novelty before this filing date? Find Prior Art