ARRANGEMENT AND METHOD FOR DETERMINING A STOPPER POSITION

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...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	RICHTER, Ren, NAGEL, Thomas, GUENTHER, Richard, VOGEL, Johannes, WITT, Robert
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY HUMAN NECESSITIES HYGIENE LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEDICAL OR VETERINARY SCIENCE PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	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 proce