Dry powder inhaler delivery system

Details Dry powder inhaler delivery system Dry powder inhaler delivery system

1997-04-22

2000-02-29

Lewis, Aaron J.

Surgery

Respiratory method or device

Means for mixing treating agent with respiratory gas

12820315, A61M 1500

Patent

active

060296631

ABSTRACT:
A powder storage and delivery system for a drug powder inhaler has a carrier disk with a blister shell sealed by a shear layer. A tab is adhered to the shear layer, underneath the blister shell. The carrier disk is placed into a dry powder inhaler. An actuator pushes against the tab, causing the shear layer to tear away, releasing the powder drug contents from the blister into the dry powder inhaler. A disk carrier has bursting blisters with a brittle blister shell sealed with a foil lid, and covered by a plate. An actuator moves against the plate, causing the plate to buckle and the blister shell to burst open, releasing powdered drug into the dry powder inhaler.

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patent: 5171812 (1992-12-01), Wharton et al.
patent: 5492112 (1996-02-01), Mecikalski et al.
patent: 5590645 (1997-01-01), Davies et al.
patent: 5622166 (1997-04-01), Eisele et al.

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