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AssigneeInsulet Corporation
InventorsDavid NAZZARO, Ian MCLAUGHLIN, Daniel ALLIS, Simon KOZIN, Maureen MCCAFFREY
Estimating the term…
Systems and methods for monitoring an operational state and/or a fill status of a drug container of a drug delivery device are provided. The drug container can hold a liquid drug. A plunger can be positioned within the drug container. A drive system can advance the plunger to expel the liquid drug from the container. A monitoring system can detect a movement and/or a position of the plunger and/or any component coupled to the plunger. The detection can enable determination of an amount of liquid drug that has been expelled and/or an amount of liquid drug remaining in the drug container. Dosing rates, flow rates, and dosage completion can also be determined.
1 A monitoring system, comprising:
The monitoring system of claim 1, wherein:
The monitoring system of claim 1, wherein the second conductive trace has a sawtooth configuration.
The monitoring system of claim 1, wherein the second conductive trace is formed of a material with a linearly increasing resistance.
The monitoring system of claim 1, wherein the plunger wiper is formed from an electrically conductive material and is positioned to electrically couple the first conductive trace and the second conductive trace.
The monitoring system of claim 1, wherein the drug container further comprises:
The monitoring system of claim 1, wherein the controller is further configured to:
A wearable drug delivery apparatus, comprising:
Dependencies are inferred from the claim text.