Patent · US Expired

Inhalation device

US7143765B2 · kind B2 · utility

89Cited by

12References

19Claims

0Family size

Assignee

ASTRAZENECA AB · SE

Inventors

Lars Asking · Lund, SE
Ian Harwigsson · Lund, SE
Mikael Jonströmer · Lund, SE

Key dates

Filing date	May 21, 2002
Grant date	Dec 5, 2006
Priority date	—
Expiry date	Jul 28, 2022

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2202/064
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An inhalation device for delivery of a powdered medicament comprising a suction tube (21) and one or more doses of powdered medicament. The suction tube (21) has a distal end (28) and a proximal end (29) with an air passage (30) therethrough, the distal end (28) having an air inlet and the proximal end (29) having an air outlet which forms the mouthpiece of the device. The inhalation device further comprises a means for drying air (23) drawn by a user into the inhalation device prior to contact with the aggregated powdered medicament such that a dose of powdered medicament will be dispersed in dried air for delivery at the proximal end.

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