Patent ID: 11969544
Assignee: NORTON (WATERFORD) LIMITED
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. An inhaler for the inhalation of powder medication, the inhaler having an inhaler body and at least one reservoir containing powder medication, the inhaler body defining an air inlet for allowing air to enter the inhaler body and an outlet for transmission to a patient of air entering the inhaler body through the air inlet and powder medication, the outlet having a total cross-sectional area for flow which is more than 80% and less than 100% of a total cross-sectional area of the air inlet,
the outlet comprising a primary outlet for transmitting dry powder medicament entrained in air and at least one secondary outlet for transmitting a bypass flow of air alone without medicament,
the inhaler further comprising a deagglomerator, located within the inhaler body, the deagglomerator including a swirl chamber, at least one swirl chamber inlet port for transmitting air without powder medicament, and a single swirl chamber medicament inlet for transmitting air with powder medicament,
wherein the air inlet defined by the inhaler body is a sole air inlet shared by all of the primary outlet, the at least one secondary outlet, the at least one swirl chamber inlet port for transmitting air without powder medicament, and the swirl chamber medicament inlet for transmitting air with powder medicament, and
wherein a single delivery passageway leads from the air inlet of the inhaler to the swirl chamber medicament inlet of the deagglomerator.