Cartridge for dosage sensing

An injection device is provided, comprising a cartridge configured to hold a volume of fluid, the cartridge having a proximal end and a distal end through which the fluid is dispensed; a first stopper disposed in the cartridge and configured to move from the proximal end toward the distal end to cau...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Jansen, Paul Edward, Allerdings, Alexander, Pommereau, Christian, Hammen, Dietmar, Brueggemann, Ulrich, Schabbach, Michael, Dette, Christoph, Otten, Martin
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:An injection device is provided, comprising a cartridge configured to hold a volume of fluid, the cartridge having a proximal end and a distal end through which the fluid is dispensed; a first stopper disposed in the cartridge and configured to move from the proximal end toward the distal end to cause the fluid to be dispensed through the distal end of the cartridge; a second stopper disposed at the distal end of the cartridge, the second stopper including an aperture through which the fluid is dispensed; a reflector disposed at the distal end of the cartridge; and a transmitter and a receiver disposed in the first stopper, the transmitter configured to transmit one or more waves toward the reflector and the receiver configured to receive reflections of the one or more waves from at least the reflector.