Patent · US Active

Dry powder inhaler

US8561609B2 · kind B2 · utility

19Cited by

166References

34Claims

0Family size

Assignee

Respira Therapeutics, Inc. · US

Inventors

Martin Donovan · Austin, US
Jacques Pappo · Cambridge, US
Hugh Smyth · Austin, US

Key dates

Filing date	Dec 7, 2011
Grant date	Oct 22, 2013
Priority date	—
Expiry date	Dec 10, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/43
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A dry powder inhaler includes a chamber holding an actuator to which a powdered medicament is adhered. Air is drawn into the chamber through an inlet flow channel and exits through an outlet flow channel. The actuator oscillates in response to the air flow, dislodging powdered medicament to be entrained in the air flow and delivered to the patient. A retaining member prevents the actuator from exiting the chamber. Thus, the medicament may be delivered to the patient without the use of carrier particles.

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