Pressure sensor assembly and methods for injection devices
AssigneeSanofi
InventorFlorian Schauderna
Life of this patent
Estimating the term…
Abstract
Described is an electronics assembly with pressure or force sensing capabilities for use in a drug delivery device. The electronics assembly includes a processor, a sensor arranged to measure the force applied by a drive mechanism to drive a medicament from a cartridge, a wireless module to which an external device can be paired, a power module arranged to supply power to the assembly, and memory storing instructions for the processor to perform. The instructions include receiving a measurement signal during the drug delivery operation, and determining if the dose of the medicament was expelled from the drug delivery device based on the received measurement signal.
Claims18
An electronics assembly for use in a drug delivery device, comprising:
- a processor;
- a sensor arranged to measure a pressure in a cartridge of the drug delivery device or a force applied by a drive mechanism of the drug delivery device, and output a measurement signal to the processor;
- and
- at least one non-transitory computer readable medium storing instructions operable to cause the processor to perform operations comprising:
- activating the sensor during a drug delivery of a medicament by the drug delivery device;
- receiving a pressure or force measurement signal from the sensor during the drug delivery,
- determining whether at least a portion of the medicament was expelled from the drug delivery device based on the received pressure or force measurement signal, and
- activating an alert mechanism configured to provide a particular alert based on the determining,
- wherein the alert mechanism is configured to provide different alerts based on an outcome of the determining.
A method of analyzing a drug delivery of a medicament from a drug delivery device using a pressure or force sensor, the method comprising:
- activating the sensor during the drug delivery and receiving a measurement signal during the drug delivery;
- determining whether at least a portion of the medicament was expelled from the drug delivery device based on the received measurement signal;
- and
- activating an alert mechanism configured to provide a particular alert based on the determining,
- wherein the alert mechanism is configured to provide different alerts based on the outcome of the determining.
Dependencies are inferred from the claim text.