Dry powder inhaler

Details Dry powder inhaler Dry powder inhaler

1996-03-11

1997-12-23

Buiz, Michael Powell

Surgery

Respiratory method or device

Means for mixing treating agent with respiratory gas

604 58, A61M 1500

Patent

active

056997892

ABSTRACT:
The present invention is a dry powder inhaler that is operable to deliver a dry powder medication to the lungs of a patient without the use of a propellant. The inhaler device is a tubular shell with an opening at either end of the shell and an air passageway therethrough, a medication storage chamber, an axially moved air inlet closure member covering the air inlet opening(s), and a slidable medication dosing tray attached to the closure member. In use, the air inlet closure member is pulled in a direction away from the user while the patient inhales, causing the simultaneous introduction and flow of air through the air passageway, and dispersement of a dosage of the medication into the air passageway. The patient then inhales the air/medication mix which passes into the lungs.

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