Abstract: A drug delivery system comprising drug expelling means and electronic circuitry with a sensor system adapted to determine an expelled amount of drug, the sensor system comprising a switch for actuating the sensor system between an off and on state. The electronic circuitry is adapted to actuate the sensor system from a high-power on-state to a low-power sleep state after a given amount of time to save energy, and, with the sensor system in the low-power sleep state, detect when the switch is actuated from the on-state to the off-state, this creating an error period. When an error period has been detected a display indicates to the user that the sensor system has been in an error state for a period of time corresponding at least to the error period.

Abstract: A drug delivery assembly comprising a sensor system in combination with an indicator arranged to rotate, the amount of rotation being indicative of the size of an expelled dose amount. The sensor system comprises a sensor assembly adapted to measure a rotational position and/or a rotational movement of the indicator, the sensor assembly comprising a sensor element adapted to be operated at a non-constant sampling frequency. A processor is configured to determine on the basis of measured values from the sensor element rotational position(s) and/or amount of rotational movement of the indicator, as well as rotational speed of the indicator. To optimize energy consumption the processor is configured to dynamically control the sampling frequency in response to the determined rotational speed.

Abstract: A combination assembly comprising a process assembly and a thereto attachable sensor assembly is provided. The process assembly comprises an indicator element and a type identifier. The indicator element is arranged to rotate relative to a reference component and corresponding to a reference axis. The sensor assembly comprises a first sensor adapted to detect a rotational position and/or rotational movement of the indicator element, a second sensor adapted to detect a type identifier, an energy source, and a switch actuatable between an off state and an on state in which an operational cycle is initiated. The first sensor is operated to detect an amount of rotational movement performed by the indicator element, and the second sensor is operated to detect a type identifier. During an operational cycle the first and the second sensor are operated sequentially to prevent that peak draws of resources from the sensors take place concurrently.

Abstract: The present invention relates to a wireless data communication module (100) for a drug injection device. The wireless data communication module (100) comprises a folded flexible carrier member (107) comprising a plurality of stacked component support regions (203, 205, 207, 209, 211) and a display (103), such as a LCD or OLED display, electrically connected to a first component support region (203) of the folded flexible carrier member (107) via a first set of electrical connection terminals. The display (103) comprises an outwardly facing readable display and an opposing, downwardly facing, optical reflector (319). The wireless data communication module (100) additionally comprises a NFC antenna (105) attached to a second component support region (205) of the folded flexible carrier member (107) situated below the first component mounting region (203). The optical reflector (319) of the display comprises an optically reflective and non-magnetically permeable material.

Abstract: The present invention relates to an electronically assisted injection device adapted to inject doses of a drug from a held cartridge. The injection device may include a first rotational sensor (40) coupled to a driver (6) for sensing a dose setting and a second rotational sensor (50) coupled to a dosing member (8) for sensing an expelled dose. A third axial sensor (60) provides information relating to the axial position of the driver (6). A control circuit is adapted to determine the end of dosed state based on data from the first, the second and the third sensors (40, 50, 60). The injection device may also include an arrangement for determining fluid ingress into the interior of the injection device. The arrangement includes an electrically non-conductive surface portion (63) disposed on a first component (6) and an electrode assembly (62a, 62b, 62c) disposed on a second component (80) wherein the first component (6) and the second component (80) moves relative to each other during operation.

Abstract: The present invention relates to an electronically assisted injection device adapted to inject doses of a drug from a held cartridge. The injection device may include a first rotational sensor (40) coupled to a driver (6) for sensing a dose setting and a second rotational sensor (50) coupled to a dosing member (8) for sensing an expelled dose. A third axial sensor (60) provides information relating to the axial position of the driver (6). A control circuit is adapted to determine the end of dosed state based on data from the first, the second and the third sensors (40, 50, 60). The injection device may also include an arrangement for determining fluid ingress into the interior of the injection device. The arrangement includes an electrically non-conductive surface portion (63) disposed on a first component (6) and an electrode assembly (62a, 62b, 62c) disposed on a second component (80) wherein the first component (6) and the second component (80) moves relative to each other during operation.

Abstract: Medical injection advice adapted for operating in a dose setting mode and in a dose administration mode, comprising a dosing actuator (124) reversibly actuatable from a first state for operating the device in the dose setting mode to a second state for operating the device in the dose administration mode, a switch (130, 132) adapted to sense positional information associated with the dosing actuator, and a controller coupled to the switch arrangement, wherein electronic mode representation is configured to enter dose setting mode after a time delay following detecting the dosing actuator has moved away from said second state or detecting the dosing actuator has moved into said first state.