Patent · US Active

Dry powder inhaler

US8205611B2 · kind B2 · utility

3Cited by

2References

31Claims

0Family size

Assignee

ASTRAZENECA AB · SE

Inventors

Magnus Olsson · carrer de Sertori, SE
Eva Trofast · Lund, SE

Key dates

Filing date	Sep 7, 2010
Grant date	Jun 26, 2012
Priority date	—
Expiry date	Sep 7, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29L2031/753
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A processing method and apparatus are disclosed for processing an inhaler component of a dry powder inhaler so as to remove any electrostatic charge and improve inhaler performance in drug delivery to the respiratory tract. The method includes exposing the inhaler component, while it contains an amount of medicament, to a gas in a chamber at a first predetermined pressure; exposing the inhaler component, in the chamber, to gas at a second pressure greater than the first pressure; and repeating the exposure of the inhaler component to gas at a pressure no greater than the first predetermined pressure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.