Inhalation device free from propellant gas having brush abrading powder from tablet
AssigneeBoehringer Ingelheim GmbH
InventorsGerhard Poss, Jurgen Wittekind
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Abstract
The invention relates to a propellent-free inhalation device having a supply of solidified medicinal substance to be inhaled, a manually operable metering device for removing a given dose of the medicinal substance for the inhalation process and having a mouthpiece for actively breathing in and an air space for distributing the particular dose of medicinal substance in the air stream. An abrasion device, in the form of a brush comprising a plurality of bristles, is used to abrade the medicinal substance to form the dose.
Claims19
A propellant free inhalation device for use with a solid tablet of a medicinal substance, comprising:
- a housing;
- a holder for containing the tablet;
- a manually operated means for dispensing and metering a dose from the tablet for inhalation by a user, said means for dispensing and metering the dose comprising a shaft and a brush having means for mechanically abrading the tablet, said means for mechanically abrading the tablet including a plurality of bristles, said bristles, responsive to manual operation of said dispensing and metering means by a user, mechanically abrading the tablet and generating the dose for inhalation;
- an air chamber within said housing, said air chamber receiving the dose upon manual operation of said dispensing and metering means by a user;
- and
- a mouthpiece adapted to be engaged by a user's mouth wherein inhalation by a user through said mouthpiece causes air to flow through said air chamber and to entrain the dose.
Dependencies are inferred from the claim text.