Disposable inhaler with pull-off seal

Details Disposable inhaler with pull-off seal Disposable inhaler with pull-off seal

1995-04-12

1997-08-26

Asher, Kimberly L.

Surgery

Respiratory method or device

Means for mixing treating agent with respiratory gas

12820321, A61M 1500, A61M 1600, B05D 714, B65D 8306

Patent

active

056601697

ABSTRACT:
The invention relates to a disposable breath-actuated inhaler comprising a housing forming an air flow path open at both ends, wherein one end forms an air inlet and one end forms an air outlet. The housing includes a compartment for storing a pharmaceutical powder to be inhaled which is located close to the air inlet and covered by a thin foil which seals the compartment in an airtight way. The foil can be removed from the compartment from outside the housing. Additionally, the housing has a constriction adjacent the powder compartment such that a turbulent air stream will be obtained at the constriction upon inhalation which will lift the powder out from the compartment and mix the powder into the air stream.

REFERENCES:
patent: 2549303 (1951-04-01), Friday
patent: 4265236 (1981-05-01), Pacella
patent: 4811731 (1989-03-01), Newell et al.
patent: 4817800 (1989-04-01), Williams et al.
patent: 4841964 (1989-06-01), Hurka et al.
patent: 5035237 (1991-07-01), Newell et al.
patent: 5042472 (1991-08-01), Bunin
patent: 5239991 (1993-08-01), Chawla et al.

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