Dry powder inhaler
AssigneeVectura Delivery Devices Limited
InventorsRoger Clarke, Andreas Meliniotis
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Abstract
The present invention provides an inhaler comprising a housing which contains a blister strip having a plurality of blisters which contain powdered medicament for inhalation, a mouthpiece mounted to the housing through which the medicament is inhaled by a user, an indexing and opening mechanism for indexing the blister strip and for opening the blisters which is operated by an actuator, wherein the blister strip is indexed by forward motion of the actuator from a first position to a second position, such as by opening a cover, and is also indexed in the same direction by reverse motion of the actuator from the second positon to the first position, such as by closing the cover.
Claims15
An inhaler comprising:
- a housing which contains a blister strip having a plurality of blisters which contain powdered medicament for inhalation,
- a mouthpiece mounted to the housing through which the medicament is inhaled by a user,
- an indexing wheel for indexing the blister strip and an opening mechanism for opening the blisters,
- wherein the blister strip is indexed by forward motion of an actuator from a first position to a second position,
- characterized in that the blister strip is also indexed in the same direction by reverse motion of the actuator from the second position to the first position,
- wherein the indexing wheel is arranged to index the blister strip forward by a distance between a center of a first blister and a center of a successive blister on the blister strip on the forward motion of the actuator and to index the blister strip forward the same distance on the reverse motion of the actuator,
- and wherein the opening mechanism is arranged to open two successive blisters on one complete actuation of the actuator.
Dependencies are inferred from the claim text.