Inhaler

Abstract

There is disclosed an inhaler 10 for delivery of a medicament by inhalation. The inhaler 10 comprises a drive mechanism comprising a canister drive 22 for receiving a canister 50 of medicament, a biasing means 20, and a trigger mechanism. The trigger mechanism comprises a latch 35. The latch 35 has a locked position in which it contacts the canister drive 22 to prevent linear movement of the canister drive 22 and holds the biasing means 20 in a loaded configuration; and an unlocked position in which the latch 35 is disengaged from the canister drive 22 and releases the biasing means 20 from the loaded configuration to drive the canister drive 22 from a rest position to an actuated position. The trigger mechanism comprises a blocker 32. The blocker 32 has a blocking position in which it contacts the latch 35 to block movement thereof from the locked position to the unlocked position; and a rotated position in which the blocker 32 is disengaged from the latch 35 and allows movement of the latch 35 from the locked position to the unlocked position. The blocker 32 is rotatable in response to a force applied to the blocker 32. A method of operation of an inhaler 10 is also disclosed.

Dependencies are inferred from the claim text.