A decorative shutter assembly includes a plurality of slats or boards arranged in a row presenting a decorative surface with side flanges projecting rearwardly. It is considered to be a problem that in known medicament injection devices the injection interval, that is the time elapsed since a previous injection, is measured following completion of a delivery stroke rather than from dispersion of the injected medicament. The resulting as components for medical devices, specifically ophthalmic devices and more specifically contact lenses. A first end face of the first end section forms a first angle with a central plane, and a second end face of the second end section forms a second angle with the central plane, wherein the first angle is smaller than the second angle. The method compares the information of the first node with the address information included in the received data, temporarily disconnects the third node from the first node when the received data is not addressed to the third node. Since the process controller can be located at any remote location, this discharge rate can be monitored anywhere.