DRUG DELIVERY ASSEMBLY WITH SENSOR SAMPLING FEATURE

A drug delivery assembly comprising a sensor system in combination with an indicator arranged to rotate, the amount of rotation being indicative of the size of an expelled dose amount. The sensor system comprises a sensor assembly adapted to measure a rotational position and/or a rotational movement...

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Bibliographische Detailangaben
Hauptverfasser: Jespersen, Mikkel Oliver, Hansen, Kim Ejholm, Olesen, Laurits Hoejgaard
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A drug delivery assembly comprising a sensor system in combination with an indicator arranged to rotate, the amount of rotation being indicative of the size of an expelled dose amount. The sensor system comprises a sensor assembly adapted to measure a rotational position and/or a rotational movement of the indicator, the sensor assembly comprising a sensor element adapted to be operated at a non-constant sampling frequency. A processor is configured to determine on the basis of measured values from the sensor element rotational position(s) and/or amount of rotational movement of the indicator, as well as rotational speed of the indicator. To optimize energy consumption the processor is configured to dynamically control the sampling frequency in response to the determined rotational speed.