US Patent 10213557 Medicament delivery device and method of controlling the device

A medicament delivery device is shown for the administration of one or more drug agents. The device has a priming mode and a drug delivery mode for administering delivery of the one or more drug agents. The device comprises a controller configured to set the device in a priming mode when one or more predetermined states of the device are identified and to disable the drug delivery mode during said predetermined state(s). When states of the device are different from said predetermined states, the controller can set the device in the drug delivery mode. A priming mode may still be enabled through a user interface.