Inhalation device and a method for assembling said inhalation device

A method for assembling a canister and a counter in an inhalation device, said canister having a proximal end, a distal end, a valve located at the distal end, and being adapted to accommodate a medicament to be dispensed to a user, one dose of said medicament being dispensed when said canister is pressed down a first predetermined amount, said first predetermined amount being called a fire point, and said counter being connected to the proximal end of the canister and configured to count one dose when said canister is pressed down a second predetermined amount, said second predetermined amount being called a count point, wherein said method comprises:

• placing the counter over the proximal end of the canister, at least one of the counter and the canister having a contact surface for contact between the counter and the canister for increasing the friction between the counter and the canister to permit the counter to fixedly be attached onto the canister in a range of different positions in the lengthwise direction;
• pushing the counter onto the proximal end of the canister to vary a combined length of the canister and the counter;
• and
• measuring the combined length of the canister and the counter until the measured combined length is within a predefined tolerance.

An inhalation device for delivering doses of medicament to a user comprising:

• a canister having a proximal end and a distal end, said canister having a valve at the distal end and being adapted to accommodate the medicament to be dispensed to a user, one dose of said medicament being dispensed when said canister is pressed down a first predetermined amount, said first predetermined amount being called a fire point;
• and
• a counter which is connected to the canister and configured to count one dose when said canister is pressed down a second predetermined amount, said second predetermined amount being called a count point,
• wherein the proximal end of the canister is adapted to receive the counter, and an inside part of the counter comprises a deformable material that permits lengthwise positioning of the counter onto the canister in a range of different positions such that the combined length of the canister and the counter is variable to within a predefined tolerance.

An inhalation device for delivering doses of medicament to a user comprising:

• a canister having a proximal end and a distal end, said canister having a valve at the distal end and being adapted to accommodate the medicament to be dispensed to a user, one dose of said medicament being dispensed when said canister is pressed down a first predetermined amount, said first predetermined amount being called a fire point;
• and
• a counter which is connected to the canister and configured to count one dose when said canister is pressed down a second predetermined amount, said second predetermined amount being called a count point,
• wherein the canister is adapted to receive the counter on the proximal end, such that:
• the counter is mounted on the canister at the proximal end thereof, whereby a combined length of the canister and the counter is variable to within a predefined tolerance,
• the counter includes a plastic material, and
• the plastic material of the counter is melted into a close fit to the canister.