Abstract: A method of monitoring a use cycle or delivery process by a variable-dose delivery device involves, by an electronic unit associated with the delivery device, determining, during the use cycle, first and second event details of a first and second dispense event. Thereafter, determining cycle properties including at least one of a number of dispense events in the use-cycle and a holding time status indicative of a regular holding time having been observed at the end of the use cycle. Evaluating an injection criteria, including a multi-event-criteria based on an event detail of the first event, or a cycle criteria based on a cycle property of the use cycle, to derive an injection score of the second event, indicating a probability that a second dispensed dose has been injected and was not a priming or air shot. Determining and forwarding a cycle dispense dose based on the injection score.

Abstract: The disclosure is concerned with privacy and integrity of personalized protected health information when transmitted to a cloud computing facility and subsequently distributed to a plurality of stakeholders. An electronic unit of a drug delivery device is configured to prepare payload data comprising data items according to an allocation scheme, and to encrypt, based on an encryption key, and transmit data including the payload data. The allocation scheme and the encryption key are defined for each of a plurality of data subscribers. Accordingly, personalized protected health information payload data is suitably protected with generator-to-subscriber or pass-through data security measures, and any intermediary node or data server in the communication network lacking a matching decryption key will not have access to unencrypted payload data.

Abstract: Monitoring an injection process executed by a variable dose injection device with feedback means for generating a number of feedback events proportionate to the dose to be determined is disclosed. A dialed or injected dose is determined by measuring a first signal of the process comprising a first signal peak related to a feedback event; detecting the first signal peak in the first signal; selecting an evaluation interval comprising the detected peak and adapted to an expected peak duration; deriving, from the first signal limited to the evaluation interval, a feature or characterizing parameter of the feedback event; identifying, from the derived feature, the feedback event as one of a dial up, dial down, or expel feedback event, and counting identified feedback events to determine the dialed or the ejected dose. The two-stage approach with serially executed peak detection and peak identification allows to optimize data storage and processing power.