Electronics for dosage sensing
AssigneeSanofi
InventorsMichael Schabbach, Michael Meissner
Life of this patent
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Abstract
An injection device includes 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 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; and an electronic device disposed at the distal end of the cartridge, the electronic device including an emitter configured to transmit a signal toward the stopper, a receiver configured to receive reflections of the signal from the stopper, and a controller configured to wirelessly transmit data related to a position of the stopper in the cartridge.
Claims25
An injection device 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 cartridge housing configured to hold the cartridge;
- a stopper disposed in the cartridge and configured to move from the proximal end to the distal end to cause the fluid to be dispensed through the distal end of the cartridge;
- and
- an electronic device disposed at the distal end of the cartridge, the electronic device comprising
- an emitter configured to transmit a signal through a portion of the cartridge housing toward the stopper,
- a receiver configured to receive reflections of the signal from the stopper,
- a controller configured to wirelessly transmit data related to a position of the stopper in the cartridge, and
- a clasp or snap portion configured to releasably attach the electronic device to the cartridge housing.
An injection device 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 cartridge housing configured to hold the cartridge, the cartridge housing having electrical leads disposed within a sidewall of the cartridge housing;
- a stopper disposed in the cartridge and configured to move from the proximal end to the distal end to cause the fluid to be dispensed through the distal end of the cartridge;
- and
- an electronic device disposed at the distal end of the cartridge, the electronic device comprising
- an emitter configured to transmit a signal toward the stopper,
- a receiver configured to receive reflections of the signal from the stopper, and
- a controller configured to wirelessly transmit data related to a position of the stopper in the cartridge.
Dependencies are inferred from the claim text.