Method and device for displaying and metering doses as a product is administered

摘要

A device and method for displaying and metering a product to be administered from a reservoir by means of a dose metering device and a display unit, wherein a specific dose is set by moving the dose metering unit from an initial position in a metering direction across a dose metering distance. A reference point is defined by an initial position of the dose metering device in readiness for administering a first dose or a position assumed by the dose metering device after administering a dose. The dosage setting displayed by the display unit is a dosage value based on the distance travelled by the dose metering device from the reference point in the metering direction.