Dry powder inhaler

Details Dry powder inhaler Dry powder inhaler

1998-07-22

2000-05-02

Lewis, Aaron J.

Surgery

Respiratory method or device

Means for mixing treating agent with respiratory gas

12820321, A61M 1500

Patent

active

060559802

ABSTRACT:
A dry powder medicine inhaler has an impeller non-concentrically disposed in a mixing chamber. A motor spins the impeller at high speed. A plunger introduces a dose of powdered medicine into the chamber so that all powder particles are available for intermixing disaggregation and comminution. An aperture receives a first stream of air and passes it towards the mouthpiece for inhalation by the user. A wall has at least one aperture for diverting a portion of a main air stream into the aerosolizing chamber to mix with the particles to form a fine, low-density, low velocity, dry mist of powdered medicine for inhalation by the user.

REFERENCES:
patent: 3831606 (1974-08-01), Damani
patent: 5577497 (1996-11-01), Mecikalski et al.

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