Patent ID: 11964097
Assignee: ASTRAZENECA, AB
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 15:
16. A method of dispensing medicament from an inhaler, the method comprising:
releasing a biasing member of a drive mechanism of the inhaler from a loaded configuration;
moving, by the released biasing member, a displaceable member of the drive mechanism from a first position to a second position to drive a canister, received in a body of the inhaler, from a rest position, in which a valve of the canister is closed, to at least an actuating position, in which the valve is open;
automatically returning the canister from the actuating position to the rest position within a predetermined time period measured from the release of the biasing member from the loaded configuration, the automatic return of the canister being regulated by a return mechanism comprising a damping system having a rotary damper configured to assist in controlling a speed of a canister during at least a portion of movement of the canister between the actuating position and the rest position; and
resetting the drive mechanism with a resetting mechanism that moves the displaceable member from the second position to the first position and reloads the biasing member to the loaded configuration.