NAGEL, Thomas,RICHTER, René,WITT, Robert,GUENTHER, Richard,VOGEL, Johannes
申请号：
DK13735038
公开号：
DK2872917T3
申请日:
2013.07.10
申请国别(地区):
DK
年份:
2016
代理人:
摘要：
The invention relates to an arrangement for determining a position (x) of a stopper (4) relative to a container (2) in a drug delivery device (1), comprising an acoustic source (5) configured to emit an acoustic signal and an acoustic sensor (6) configured to detect an acoustic signal, a processing unit (10) for controlling the acoustic source (5) and processing the detected acoustic signal for determining characteristics of the acoustic signal correlated with the position (x) of the stopper (4). Furthermore, the invention relates to a method for determining a position (x) of a stopper (4) relative to a container (2) in a drug delivery device (1), the method comprising the steps of: - emitting an acoustic signal from an acoustic source (5), - detecting an acoustic signal caused by the emitted acoustic signal by means of an acoustic sensor (6), - processing the detected acoustic signal for determining characteristics of the acoustic signal correlated with the position (x) of the stopper (4) by means of a processing unit (10).
