Drug delivery device and transfer station

A drug delivery device, comprising:

• first and second liquid drug reservoirs;
• first and second outlet ports;
• a drive configured for expelling a first liquid drug from the first reservoir to the first outlet port and for expelling a second liquid drug from the second reservoir to the second outlet port;
• a memory having a drug dosing scheme specifying a desired liquid drug type;
• a sensor configured to analyze at least one of a physical or chemical property of the first and/or second liquid drug to thereby obtain information concerning the type of liquid drug contained in the first and/or second reservoir;
• and
• a processor configured to:
• (i) receive the information from the sensor and thereby determine the type of liquid drug retained in the first reservoir and/or the second reservoir, and
• (ii) use the drug dosing scheme and the determined type of liquid drug to operate the drive,
• wherein the first and second reservoirs are configured to deliver the same liquid drug and wherein the processor is further configured to:
• operate the drive to deliver the liquid drug from the first reservoir to the first outlet port;
• determine the amount of the drug in the first reservoir currently available to the user;
• compare the determined amount with the threshold criterion;
• and
• in response to the comparison, when the determined amount is lower than or equal to the threshold criterion, operate the drive to deliver the liquid drug from the second reservoir to the second outlet port, the threshold criterion specifying a residual availability of the drug provided in the first reservoir.

A method of operating a system having a transfer station and a drug delivery device, the method comprising:

• analyzing by the transfer station a liquid drug contained in a supply container to analyze at least one of a physical or chemical property of the liquid drug to thereby determine the type of liquid drug retained in the supply container;
• transferring the liquid drug from the supply container to a first reservoir of the drug delivery device;
• providing an identifier for the first reservoir, the identifier specifying the type of liquid drug retained in the supply container;
• using the drug delivery device to determine the type of liquid drug retained in the first reservoir;
• and
• in accordance with a drug dosing scheme, using a processor of the drug delivery device to:
• (i) receive the information from the sensor and thereby determine the type of liquid drug retained in the first reservoir and/or a second reservoir, and
• (ii) use the drug dosing scheme and the determined type of liquid drug to operate the drive.