Add-on devices for injection devices

Abstract

The present disclosure relates to an attachment device (30) for attachment to an injection device (1), the injection device (1) having a machine-readable ID (28), the attachment device (30) comprising: a device body (60) fastenable to a portion of the injection device (1); a reconfigurable, user-perceptible device ID (50); and an electronic module (34) comprising a processor (44) coupled to the device ID (50), the processor (44) operable to reconfigure the device ID (50) according to the machine-readable ID (28) of the injection device (1).

Description

[Technical Field]

[0001] The present disclosure relates to the field of add-on devices for injection devices, in particular add-on devices attachable to pen-type injectors. In another aspect, the present disclosure relates to an injection system comprising an injection device and an add-on device. In a further aspect, the present disclosure relates to a method of configuring an add-on device during assembly to an injection device. [Background technology]

[0002] Drug delivery devices for pre-programmed dispensing of single or multiple doses of liquid medication are known in the art. Generally, such devices serve much the same purpose as a conventional syringe.

[0003] Drug delivery devices, such as pen injectors, must meet many user-specific requirements. For example, in the case of patients with chronic diseases such as diabetes, patients may be physically weak and have impaired eyesight. Therefore, a suitable drug delivery device, particularly for home drug therapy, must be robust in construction and easy to use. Furthermore, the operation and general handling of the device and its components should be clear and easy to understand. Such injection devices should provide for the setting and subsequent dispensing of equal or variable-sized doses of medication. Furthermore, the dose setting and dose dispensing procedures must be easy to perform and clear.

[0004] Patients suffering from certain illnesses may need to inject a certain amount of medication through a pen injector.

[0005] Some drug delivery or injection devices provide for the selection of variable-sized doses of medication and the injection of preset doses, while other injection devices provide for the setting and dispensing of fixed doses, where the amount of medication to be injected according to a given prescription schedule is always the same and is fixed or unalterable over time.

[0006] Some injection devices are implemented as reusable injection devices, where the user can replace the medication container, such as a cartridge. Other injection devices are implemented as disposable injection devices, where the entire injection device is intended to be discarded when the contents, i.e., medication, have been used up.

[0007] To control and manage the administration of medication by the user or patient himself, it is beneficial to assist the user by utilizing an external electronic device, such as a portable electronic device implemented as, for example, a smartphone, tablet computer, or smartwatch. A software application provided on such an external electronic device may interact with the user and provide instructions or recommendations to the user on how to properly use the injection device.

[0008] It is desirable to provide automatic detection and logging of repetitive and regular use of a drug delivery device in order to control and manage the administration of medication by a user or self-patient. A highly automated record of the dose injected by the user offers significant advantages over manual dose logging in terms of safety and convenience.

[0009] There are many add-on devices that are adapted for use with injection devices that provide electronic detection and monitoring of repeated dose injection procedures.

[0010] Typically, such additional or auxiliary devices can be removably connected to the injection device. The additional device typically comprises a detector or detector arrangement operable to detect the date and / or time when a user sets or injects a dose of medication. Some additional devices also provide a quantitative measurement of the size of the currently set or dispensed dose. Some additional devices are intended to be used with a range of injection devices. This may apply in particular to disposable injection devices that are intended to be discarded after use or after the medication in the injection device has been used up.

[0011] Generally, there are a variety of different injection devices, which may be equipped with different drugs or medicaments, but which are generally operable to be used with the same type of add-on device. Although it is common practice to characterize or label injection devices and / or different types and / or strengths of medicaments with a clear and distinct label or ID, detachable connections to add-on devices may impose disadvantages, particularly if the label or distinctive portion of the injection device is covered by the add-on device when attached to the injection device.

[0012] Thus, when an injection device is equipped with an additional device, for example, a label on the injection device indicating the type of drug concentration contained in the injection device may no longer be visible or the visibility of such a label or ID may be impaired.

[0013] It is therefore desirable to eliminate such drawbacks and improve the clear and unambiguous labeling or characterization of injection devices even when equipped with additional devices. Summary of the Invention [Means for solving the problem]

[0014] In one aspect, an attachment device for attachment to an injection device is provided. The injection device comprises a machine-readable ID. The attachment device comprises a device body fastenable to a portion of the injection device. The attachment device further comprises a reconfigurable user-perceptible device ID. The attachment device further comprises an electronic module comprising a processor coupled to the device ID, the processor operable to reconfigure the device ID according to the machine-readable ID of the injection device.

[0015] The add-on device is particularly adapted to mimic or match the distinction or characterization of the injection device, which characterization is defined or reflected by its machine-readable ID. The machine-readable ID of the injection device is typically implemented to distinguish the injection device and / or a medicament contained therein or dispensable by the injection device from another injection device and / or another medicament. Thus, multiple injection devices may be provided, each with the same or similar shape, purpose, and / or method of operation, each injection device comprising a different medicament, for example a medicament of a different concentration, and / or a different pharmaceutically active compound.

[0016] The machine-readable ID indicates such device characteristics and / or medication characteristics. In some examples, a first injection device includes device portions of a first color. A second injection device may be provided with equivalent device portions, but in a second color that is distinct from the first color. Thus, the first injection device may be provided with a first machine-readable ID that indicates the first color. The second injection device may be provided with a second machine-readable ID that indicates the second color.

[0017] The reconfigurable user-perceptible device ID is particularly reconfigurable before or during attachment of the add-on device to the injection device. The user-perceptible device ID can be configured, reconfigured, or arranged at least once to match the user-perceptible device ID to the machine-readable ID of the injection device. In this way, the user-perceptible device ID of the add-on device can be matched to the machine-readable ID of the injection device to which the add-on device is attached or to which it will be attached. This is particularly useful when the add-on device, while attached to the injection device, covers a portion of the injection device that is typically characteristic of the injection device and / or of the medication located within the injection device.

[0018] The portion of the injection device that is covered by the add-on device and / or provided with an ID that is perceptible to a user of the injection device can be effectively transferred to the add-on device such that the respective user-perceptible device ID, e.g. indicating a feature of the injection device and / or a property of the medication located in the injection device, is and remains perceptible to a user of the injection device with the add-on device after attachment of the add-on device to the injection device.

[0019] According to a further example, the attachment device comprises at least one reader and transceiver coupled to a processor, the reader and transceiver operable to read or acquire a machine-readable ID of the injection device. The transceiver may be operable to read or acquire the machine-readable ID directly when or before the attachment device is attached to the injection device. The reader may be implemented as an optical reader. The machine-readable ID may be physically provided on a part of the housing of the injection device. The machine-readable ID may comprise an optical code, such as a barcode or a data matrix code. Here, the reader of the attachment device may comprise an imaging system, such as a camera operable to read the optical code of the machine-readable ID.

[0020] In a further example, the machine-readable ID may include a wireless communication device such as a wireless communication chip. The machine-readable ID may include at least one of an active or passive RFID or NFC chip or tag operable to communicate with a transceiver of the attached device.

[0021] In this way, the electronic module may be configured to automatically set up or establish a communication link between the transceiver and a machine-readable ID provided on or in the injection device, thereby identifying the injection device and / or its characteristics. According to the machine-readable ID read or obtained from the injection device and transmitted by the transceiver of the add-on device to the processor of the electronic module of the add-on device, the processor may appropriately process the obtained information and may further be operable to configure or reconfigure the device ID.

[0022] The device ID is operable to generate a user-perceptible identifier indicative of the machine-readable ID of the injection device. In a further example, a reader or transceiver of the attachment device is operable to indirectly obtain the machine-readable ID of the injection device. Here, the reader or transceiver of the attachment device may be operable to communicate with an external electronic device, such as a portable electronic device. The external electronic device may be operable to read or obtain the machine-readable ID of the injection device and further operable to transfer or exchange this information with the attachment device. Thus, the attachment device may indirectly obtain the machine-readable ID of the injection device via a communication link, for example a wireless communication link, with an external electronic device, such as a smartphone or smartwatch.

[0023] According to a further example, at least one of the reader and transceiver includes a near-field wireless transceiver operable to wirelessly communicate with the machine-readable ID of the injection device to read or obtain information or data provided by or in the machine-readable ID of the injection device. Here, the machine-readable ID may be implemented as a near-field wireless communication chip, for example as an NFC chip or NFC tag. The transceiver or reader of the additional device may be implemented accordingly. The transceiver or reader may be implemented as an NFC reader operable to communicate with the NFC chip or NFC tag of the injection device to provide the machine-readable ID.

[0024] Proper pairing of the machine-readable ID of the injection device with the reader or transceiver of the add-on device can be automatically triggered as soon as the short-range wireless transceiver of the add-on device comes within a predetermined short-range range of the machine-readable ID of the injection device. In some examples, the add-on device can be attached to the proximal end of the injection device, for example to the dial extension and / or to the dose dial and / or trigger. Here, the machine-readable ID, in particular the short-range identification tag of the injection device, can be provided in or on the proximal end of the injection device. The machine-readable ID can be provided on or in the proximal end face of the trigger or trigger button of the injection device.

[0025] In some examples, the attachment device includes a receptacle for receiving a portion, such as the proximal end, of the injection device. In this manner, the machine-readable ID may be located inside the receptacle of the attachment device when the attachment device is properly attached to the proximal end of the injection device.

[0026] By providing a short-range wireless transceiver in the add-on device and by having a corresponding short-range machine-readable ID on or within the injection device, a fairly fail-safe interconnection between the injection device and the add-on device can be provided, but only exclusively when the add-on device is located within a predetermined spatial range relative to the injection device.

[0027] In some examples, establishing or setting up a communication link between the machine-readable ID and the short-range wireless transceiver of the attachment device using the short-range transceiver of the attachment device may require a distance of less than 5 cm, less than 2 cm, less than 1 cm, or even less than 0.5 cm. In this manner, it can be provided that reading the machine-readable ID of the injection device is only possible when the attachment device with the device body is properly fastened to a dedicated portion of the injection device. Only when the attachment device is properly attached to the injection device can the machine-readable ID be properly extracted and processed by an electronic module of the attachment device to construct or reconstruct a user-perceptible device ID of the attachment device.

[0028] According to a further example, at least one of the reader and the transceiver includes a local area wireless transceiver. The local area wireless transceiver is operable to wirelessly communicate with an external electronic device to receive a machine-readable ID of the injection device from or via the external electronic device. Here, the external electronic device, for example implemented as a smartphone, may be operable to read the machine-readable ID of the injection device and transfer the respective ID, and therefore the respective information content, to the attached device via the local area transceiver. The local area transceiver may use a communication protocol different from that of the short-range transceiver. Typically, the local area wireless transceiver includes a larger transmission range compared to the transmission range of the short-range wireless transceiver. Typically, the local area wireless transceiver may be implemented as a Bluetooth transceiver, a Bluetooth Low Energy transceiver (BLE), or a Wi-Fi transceiver.

[0029] In this way, the local area wireless transceiver may be used or available to indirectly read out the machine-readable ID of the injection device, for example via a communication link with an external electronic device. The local area wireless transceiver of the additional device may further be operable to communicate with the external electronic device, for example to synchronize or exchange data between the additional device and the external electronic device. The local area wireless transceiver may in particular be configured to transmit data measured by the additional device to the external electronic device for further processing.

[0030] The add-on device may also include a sensor or sensor assembly operable to detect or collect data indicative of the operation of the injection device. The sensor may be operable to track or measure the movement or configuration of characteristic components of the injection device during its use. Data indicative of the operation of the injection device, such as injection data collected or retrieved by the sensor, may be transmitted to an external electronic device via a transceiver. The transceiver may be implemented as a Bluetooth or BLE transceiver.

[0031] The electronic module, and therefore the additional device, comprises a memory configured to store a plurality of measurement results of the sensor. The electronic module, and therefore the additional device, further comprises a clock configured to assign to each of the plurality of measurement data of the sensor a time index indicating the time and / or date of detection of the respective operation of the injection device 1.

[0032] In some examples, the sensor may further include an acceleration sensor configured to detect an injection action of the injection device 1 and / or to detect or classify the sensor and / or a user's gestures when using the injection device 1. For example, if the injection device is implemented as an autoinjector, the acceleration sensor may detect the acceleration of the needle of the autoinjector when performing a medication or injection procedure.

[0033] The sensors may further include a position sensor operable to detect the position or orientation of a dedicated component of the drive mechanism of the injection device, for example the position of a final dose nut, a piston rod or similar component of the drive mechanism indicative of the amount of medicament located inside the medicament container.

[0034] Additionally, in a further example, the electronic module and / or sensor may comprise a microphone that can detect and process the characteristic clicking noise of the injection device, thereby enabling the size of the dose currently being set or injected by the injection device to be derived or measured.

[0035] Additionally, the external electronic device may wirelessly connect to the attached device to configure the attached device and / or to provide the user with extended operability or functionality of the attached device. Interaction capabilities may also be provided between the attached device and the external electronic device, for example via a local area wireless transceiver, allowing the user to configure or reconfigure any settings or configurations of the attached device via the external electronic device.

[0036] In some examples, the attachment device comprises both a short-range wireless transceiver and a local-area wireless transceiver. Here, the attachment device may be operable to indirectly obtain and / or read the machine-readable ID of the injection device, for example, via or by the short-range wireless transceiver. By means of the local-area wireless transceiver, the attachment device may communicate with an external electronic device, such as a portable and / or handheld electronic device. Here, the attachment device is an electronic device operable to read the machine-readable ID of the injection device. The respective information can then be transmitted to the attachment device, for example, via a communication link between the attachment device and the external electronic device.

[0037] In this way, the add-on device is operable to autonomously read or obtain the machine-readable ID from the injection device. Furthermore, the add-on device is operable to communicate with an external electronic device even when the external electronic device is only in indirect proximity to the injection device or the add-on device. Typically, a local area transceiver includes a transmission range in the area of ​​a few meters.

[0038] According to a further example, the device ID in the first configuration represents a first identifier indicative of the first machine-readable ID. The device ID in the second configuration represents a second identifier indicative of the second machine-readable ID. The first identifier and the second identifier are perceptually distinct from one another. Thus, when the add-on device is fastened or attached to a first injection device with the first machine-readable ID, the device ID of the add-on device provides or represents the first identifier. By removing the add-on device and reattaching it to another injection device, for example, a second injection device with a second machine-readable ID that is distinct from the first machine-readable ID, a substantially automated reconfiguration of the user-perceptible device ID of the add-on device occurs. Then, in the process of attaching the add-on device to the second injection device, the device ID of the add-on device is operated or operable to generate and / or provide a second identifier that is perceptually distinct from the first identifier.

[0039] In this way, the add-on device with a reconfigurable, user-perceptible device ID can be individually and appropriately adapted to the injection device to which it is instantly attached.

[0040] According to a further example, the device ID comprises an electronic signal generator controlled or operable by the processor, the electronic signal generator operable to generate an electronic signal perceptible to a user, and the electronic signal generator operable by the processor in particular according to a machine-readable ID obtained or read by a reader or transceiver of the attached device and provided to the processor via the reader or transceiver of the attached device.

[0041] According to a further example, the electronic signal generator is operable to generate at least one of a visual, acoustic and tactile device ID and / or a respective visual, acoustic and / or tactile identifier accordingly.

[0042] In some examples where the electronic signal generator is operable to generate at least a visual device ID or respective IDs, various device IDs or various identifiers may be distinguished by at least one of color, brightness and / or temporal variation, for example in the form of a flashing or flaring light.

[0043] When an electronic signal generator is implemented to generate an acoustic signal, the signal may be distinguished by at least one of frequency, volume, and temporal variation. When implemented as a tactile device ID or tactile identifier, the electronic signal generator may typically be implemented as a type of vibration generator operable to generate vibration signals distinguished, for example, by intensity, vibration frequency, and / or temporal variation thereof.

[0044] Any user-perceptible device ID or respective identifier that can be generated by the electronic signal generator can be characteristic of the particular machine-readable ID of the attached device. For example, for different types of medication, different types of machine-readable IDs can be provided on or in the injection device. For each of these different medications, a unique device ID and / or respective identifier that are differentiated with respect to their color can be provided. In some examples, the electronic signal generator comprises at least a first light source and a second light source, the first light source and the second light source operable to emit light of different colors and / or frequencies.

[0045] According to a further example, the electronic signal generator comprises at least two light sources of different colours to generate device IDs that are differentiated or generated with respect to their colour.

[0046] The electronic signal generator may further comprise a type of light guide or illumination surface optically coupled to the first and second light sources. Here, to provide a different user-perceivable device ID and / or a different identifier for the signal generator, only one of the first and second light sources or only the other of the first and second light sources may be activated, thereby providing a different color identifier and / or user-perceivable device ID. By activating both light sources, a mixed color, and thus a third color, may be provided, representing a third identifier distinct from the colors of the first and second light sources.

[0047] By increasing the number of light sources, a wide variety of different color coded user perceptible device IDs or respective identifiers can be provided.

[0048] Similarly, respective acoustic signals, such as characteristic sounds or jingles, associated with characteristics of different injection devices and / or characteristics of different medicaments injected with such devices can be provided. Similarly, characteristic tactile signals can be generated by vibration generators. Acoustic and tactile device IDs can provide distinctive encoding of additional devices, for example, by generating characteristic sounds characterized by respective acoustic or tactile signals of various durations and / or magnitudes.

[0049] In some examples, the electronic signal generator may operate anonymously, for example, when transitioning the add-on device from a sleep mode to an active mode. In this way, each time a user attempts to use an injection device equipped with an add-on device, a respective user-perceptible device ID is generated or updated and provided to the user.

[0050] In some examples, once electrical energy is consumed by generating the identifier or generating a user-perceptible device ID, the electronic signal generator may automatically turn off or go into sleep mode, for example, after a predetermined time interval has elapsed since the attached device was last used.

[0051] According to a further example, the adjunct device comprises an electronic display coupled to the processor, the electronic display operable to illustrate a device ID, wherein the electronic display may comprise a display section that can be reconfigured to provide or function as a user-perceivable device ID, wherein the user-perceivable device ID may be provided by the device's electronic display, wherein a background color of the electronic display may represent the machine-readable ID of the injection device.

[0052] In other examples, the particular or distinctive display section may represent a user-perceivable device ID. For example, if the user-perceivable device ID is provided by a distinctive color, the information normally provided on or by the electronic display may be reproduced in this particular color code, or the information content provided on the electronic display may be framed by the distinctive color code of the injection device or medication encoded by its machine-readable ID.

[0053] In a further example, the electronic display could include an electrophoretic display that exhibits particularly low power consumption, especially when the attached device is not in use. Such an electronic display could permanently or persistently represent or provide a user-perceivable device ID, for example, in the form of a particular color and / or a distinctive pattern or illustration on the electronic display.

[0054] According to a further example, the device ID may be permanently and / or persistently perceptible from outside the add-on device. The device ID and / or the respective identifier may remain permanently and persistently on the add-on device until reconfigured by the processor of the electronic module, for example in the course of removing the add-on device and reattaching it to another injection device.

[0055] In some examples, the electronic module, and in particular its processor, may be configured to configure or reconfigure the device ID when it detects the machine-readable ID of the injection device, for example during the process of assembling or attaching an additional device to the injection device.

[0056] In a further example, the electronic module and / or processor may be operable to deactivate the device ID when contact with the machine-readable ID of the injection device is lost, for example, in the process of removing the add-on device from the injection device. Thus, in an initial configuration, the user-perceptible device ID may be deactivated or may represent a kind of neutral ID with no identifier mapped to a specific injection device. Then, only and exclusively upon establishing a connection or attachment of the add-on device to the injection device, the machine-readable ID of the injection device may be read, and a processor of the electronic module of the add-on device may configure or reconfigure the user-perceptible device ID according to data obtained from the machine-readable ID of the injection device.

[0057] According to further examples, the device ID is located on or integrated into the device body. In some examples, the device ID may comprise a window located in a sidewall of the device body. The window may cover at least a visual device ID and / or an electronic signal generator operable to generate the visual identifier. The user-perceptible device ID may comprise a type of light guide optically coupled to a light source or multiple light sources of the electronic signal generator.

[0058] In use, the add-on device, particularly the device ID located on or integrated into the device body, may illuminate with a characteristic color indicative of a particular injection device or medication.

[0059] Integrating the device ID into the device body may provide a more robust and compact design of the add-on device, and having the device ID in or integrated onto the device body is also more intuitive for users to recognize a distinctive device ID or identifier.

[0060] According to further examples, the add-on device comprises a movable part operably coupleable with the trigger of the injection device and movable relative to the device body, wherein the device ID is located on or integrated within the movable part. In some examples, the movable part of the add-on device may protrude from the proximal end of the device body. The movable part may be implemented as a kind of auxiliary injection button or trigger button that is depressed and moved distally relative to the device body to initiate or commence a dispensing action of the injection device when the add-on device is properly attached to the injection device.

[0061] When the movable part is operably coupled with the trigger of the injection device, a dosing force applied to the movable part relative to the device body may initiate a respective movement of the trigger relative to the housing of the injection device, thereby initiating a dosing action of the injection device. By implementing a user-perceivable device ID in or on the movable part, a fairly well-defined and easily perceivable indication to the user of the particular type of injection device to which the add-on device is attached.

[0062] In some examples, the movable part comprises a window, a transparent part, or a partially transparent, and therefore translucent part, through which the perceptible signal of the electronic signal generator can be perceived, e.g., viewed. In further examples, the entire movable part can be made of a transparent or translucent material, e.g., a translucent plastic material. In combination with an electronic signal generator comprising at least one or more light sources, the movable part can comprise or be configured with a signal transmission device configured to visually indicate a machine-readable ID of the injection device.

[0063] In some examples, in a first configuration of the device ID, the movable portion of the attached device may be illuminated in a first color, for example, red, and in another configuration of the user-perceptible device ID, the movable portion may be illuminated in a different color, for example, green.

[0064] In a further example, the electronic signal generator may be operable to generate a visible signal defined by a series of light or illumination pulses. The electronic signal generator, and in particular its light source, may be operable to generate a coded or characteristic series of light or illumination pulses that may be visible at the proximal end of the add-on device, for example at or within the movable part.

[0065] By implementing the movable part as a transparent or translucent component of the add-on device, a user-perceivable device ID can be neatly integrated into the add-on device. Thus, an existing component of the add-on device, originally intended to operate the add-on device, can be provided with a second function, namely, a signaling or identification function. Furthermore, an add-on device with a movable part implemented as a signaling device can provide a significantly more attractive design and improve intuitive handling of the add-on device, especially when combined with an injection device. In this way, the user appeal and user acceptance of the add-on device can be further increased.

[0066] In a further aspect, the present disclosure relates to an injection system. The injection system includes an injection device for setting and injecting a dose of a medication. The injection device includes a machine-readable ID. The machine-readable ID indicates one of the type of injection device and the type of medication. The injection system further includes an add-on device, as described above, that is removably attachable to the injection device. The machine-readable ID may be provided on or within the housing of the injection device. The machine-readable ID may include one of an optical or visible ID and an electronically readable ID. The electronically readable ID may include a communication chip such as an RFID or NFC tag. The machine-readable ID may be implemented as a passive or active electronic component, each unpowered or with its own power source.

[0067] When implemented as a passive electronic component, the machine-readable ID may be operable to draw or harvest electrical energy from an interrogating RF field, for example, provided by a reader or transceiver of the attaching device. The electronic machine-readable ID may be operable to communicate with the reader or transceiver of the attaching device to transfer the injection device's ID information to the attaching device.

[0068] In some examples, the injection device comprises a primary drug container, e.g., in the form of a syringe or in the form of a cartridge. The syringe or cartridge typically comprises a tubular barrel sealed proximally by a movable stopper that is displaced or biased distally, e.g., by a piston rod of a drive mechanism of the injection device. In this manner, a dose of drug or multiple doses of drug can be dispensed through a distal outlet of the primary drug container.

[0069] In some examples, the machine-readable ID is provided on or within the primary medication container. The machine-readable ID may be provided in or on a label attached to the exterior surface of the cartridge or syringe barrel.

[0070] In a further example, the machine-readable ID may be provided on or within the stopper of the medication container. In a further example, the machine-readable ID may be provided on the outer surface of the housing of the injection device. Thus, the machine-readable ID may include a visible code, such as a barcode or a matrix code. Here, the machine-readable ID may be identified, for example, through or by an imaging system of the external electronic device. For example, the external electronic device, implemented as a smartphone, a smartwatch, or a tablet computer, may further be operable to pair with the additional device. In this way, the additional device may be configured or reconfigured based on the machine-readable ID collected or acquired by the external electronic device and transmitted to the additional device via a separate communication link between the external electronic device and the additional device.

[0071] In a further example, the injection device comprises a dose dial and a trigger, for example, provided at the proximal longitudinal end of the injection device. The injection device may be implemented as a pen-type injector. The dose dial and / or trigger may be provided at the proximal longitudinal end of the pen-type injector. Here, the machine-readable ID may be provided in or on the dose dial and / or trigger. The attachment device may be configured for detachable or removable fastening to the proximal end of the injection device.

[0072] The add-on device, particularly its device body, may comprise a receptacle that fits over the dose dial and / or trigger. By mounting or locating the machine-readable ID in or on the trigger or dose dial, the geometric distance between the reader or transceiver of the add-on device for reading the machine-readable ID and the machine-readable ID can be minimized, thereby enabling the transceiver or reader of the add-on device to be implemented as a short-range wireless transceiver operable to read the respective near-field wireless communication tag of the device's machine-readable ID. In this way, reading of the machine-readable ID can only be performed when the add-on device is properly attached to the proximal end of the injection device.

[0073] According to a further example, the injection system includes an external electronic device, for example implemented as a smartphone, a smartwatch, or a tablet computer, operable to read a machine-readable ID of the injection device, and further operable to transmit the ID of the injection device to the additional device.

[0074] In this manner, the attachment device may not have its own reader or transceiver operable to read the machine-readable ID of the injection device. Rather, it may be sufficient if the attachment device includes only one transceiver, such as a local area wireless transceiver operable to wirelessly communicate with an external electronic device. Readout of the machine-readable ID of the injection device may then be provided or performed through the external electronic device, which, when properly paired with the attachment device, is operable to provide identifying information of the injection device to the attachment device, and the attachment device may configure or reconfigure a user-perceptible device ID.

[0075] In this example, the machine-readable ID of the injection device can be implemented in a variety of different ways, where the machine-readable ID can be implemented as a physical or optical code that is readable or recognizable by an imaging system of an external electronic device.

[0076] In a further example, the machine readable ID comprises one of a mechanical code or machine encoding that is readable or detectable by the add-on device during the process of attaching the add-on device to the injection device.

[0077] In a further example, the machine-readable ID comprises a magnetic code or magnetic encoding that is readable or detectable by the attachment device during the process of attaching the attachment device to the injection device.

[0078] In a further example, the machine-readable ID comprises an electrical or electrostatic code or respective encoding that is readable or detectable by the attachment device during the process of attaching the attachment device to the injection device.

[0079] According to a further aspect, the present disclosure relates to a method for configuring an add-on device. The method includes the step of providing an injection device, the injection device comprising a machine-readable ID. The machine-readable ID includes characteristic information of the injection device and / or a medication to be dispensed by the injection device. In a further step, an add-on device as described above is provided. The add-on device is configured to detachably fasten to or detachably connect to the injection device. The machine-readable ID is read or collected before, during, or after attaching the add-on device to the injection device. In a further step, a user-perceptible device ID of the add-on device is configured or reconfigured according to the machine-readable ID.

[0080] In some examples, reading of the machine-readable ID is performed by the attachment device itself, and to this end, the machine-readable ID may comprise a short-range wireless communication tag, such as an NFC tag, and the attachment device may be equipped with a corresponding near-field wireless transceiver or near-field reader operable to read information of the machine-readable ID.

[0081] In another example, the attachment device is operable to communicate with an external electronic device. Here, the attachment device may pair with the external electronic device and establish a communication link with the external electronic device operable to transmit data between the attachment device and the external electronic device. In this example, reading of the machine-readable ID may be performed by the external electronic device. Information about the injection device and / or about the medication obtained by reading the machine-readable ID may then be transmitted from the external electronic device to the attachment device, which may then reconstruct a user-perceptible device ID according to the machine-readable ID.

[0082] In general, the method of configuring the attachment device utilizes the attachment device described above, and to that extent, all features, effects, and advantages described above in relation to the attachment device apply equally to the method of configuring the attachment device, and vice versa.

[0083] In a further aspect, the present disclosure also relates to a computer program comprising computer-readable instructions that, when executed by a processor of the attachment device, cause the processor to reconfigure a user-perceptible device ID of the attachment device according to the machine-readable ID of the injection device.

[0084] Typically, the computer program is executable by the attachment device described above. The computer program is further operable to perform the method for configuring the attachment device described above. To that extent, the computer program and its computer readable instructions are operable to cause a processor of the attachment device to perform the method for configuring the attachment device described above. The computer readable instructions may be executable by a processor of the attachment device described above.

[0085] Additionally or alternatively, if the external electronic device of the injection system described above is configured to read the machine-readable ID of the injection device, the computer program and its computer-readable instructions may be at least partially executable by a processor of the external electronic device.

[0086] The computer program is executed by a processor of the above-described add-on device to perform the above-described method of configuring the add-on device. To that extent, all features, effects, and advantages described above in relation to the add-on device and / or in relation to the method of configuring the add-on device, as well as any effects, features, and advantages described above in relation to the injection system, apply equally to the computer program, and vice versa.

[0087] The present disclosure further discloses and proposes a computer program comprising computer-executable instructions for performing the method according to the method / device / system disclosed in one or more of the examples contained herein when the program is executed on a processor, a computer, or a computer network. Specifically, the computer program may be stored on a computer-readable data carrier. Thus, specifically, one, two or more, or even all of the method steps as described above may be performed by using a computer or a computer network, typically by using a computer program.

[0088] The present disclosure further discloses and proposes a computer program product having program code means for performing the methods according to the disclosed methods / systems in one or more of the embodiments contained herein when the program is executed on a computer or computer network. In particular, the program code means may be stored on a computer readable data carrier.

[0089] Furthermore, the present disclosure discloses and proposes a data carrier having stored thereon a data structure which, after loading into a processor, computer or computer network, for example into a working memory or main memory of the processor, computer or computer network, can perform a method according to one or more of the examples disclosed herein.

[0090] The present disclosure further proposes and discloses a computer program product having program code means stored on a machine-readable carrier for performing a method or part thereof according to one or more of the examples disclosed herein when the program is executed on a processor, a computer, or a computer network. As used herein, a computer program product refers to a program as a tradeable product. The product may generally be present in any form, such as in paper form, or on a computer-readable data carrier. In particular, the computer program product may be distributed over a data network.

[0091] In another example, the present disclosure proposes and discloses a modulated data signal comprising instructions readable by a processor, computer system, or computer network for performing at least a portion of a method according to one or more of the examples disclosed herein. Preferably, with reference to computer implementations of the present disclosure, one or more, or even all, of the method steps of a method according to one or more of the examples disclosed herein may be performed using a processor, computer, or computer network. Thus, generally, any of the method steps involving data collection, provision, and / or manipulation may be performed using a processor, computer, or computer network. Generally, these method steps may include any of those method steps, typically excluding method steps requiring manual intervention, such as providing a sample, and / or certain aspects of performing the actual measurement.

[0092] In particular, the present disclosure further discloses a computer or computer network including at least one processor, the processor adapted to perform a method according to one of the examples described herein, and a computer-loadable data structure adapted to perform a method according to one of the examples described herein while the data structure is running on the processor, the computer, a computer program, the computer program adapted to perform a method according to one of the embodiments described herein while the program is running on the computer.

[0093] Generally, the scope of the present disclosure is defined by the content of the claims. The present disclosure is not limited to specific embodiments or examples, but includes any combination of elements from different embodiments or examples. To that extent, the present disclosure covers any combination of claims and any technically feasible combination of features disclosed in relation to different examples or embodiments.

[0094] In the present context, the term "distal" or "distal end" relates to the end of the injection device that points towards the injection site of a person or animal, and the term "proximal" or "proximal end" relates to the opposite end of the injection device that is furthest from the injection site of a person or animal.

[0095] The terms "drug" or "medicament" are used synonymously herein to refer to a pharmaceutical formulation containing one or more active pharmaceutical ingredients or pharmaceutically acceptable salts or solvates thereof, and, optionally, a pharmaceutically acceptable carrier. An active pharmaceutical ingredient ("API"), in the broadest sense, is a chemical structure that has a biological effect on humans or animals. In pharmacology, drugs or agents are used to treat, cure, prevent, or diagnose disease, or otherwise improve physical or mental well-being. Drugs or agents may be used for a limited duration or periodically for chronic conditions.

[0096] As described below, drugs or pharmaceutical agents can include at least one API or a combination thereof in various types of formulations for the treatment of one or more diseases. Examples of APIs include small molecules having a molecular weight of 500 Da or less, polypeptides, peptides, and proteins (e.g., hormones, growth factors, antibodies, antibody fragments, and enzymes), carbohydrates and polysaccharides, as well as nucleic acids, double-stranded or single-stranded DNA (including naked and cDNA), RNA, antisense nucleic acids such as antisense DNA and RNA, small interfering RNA (siRNA), ribozymes, genes, and oligonucleotides. Nucleic acids can be incorporated into molecular delivery systems such as vectors, plasmids, or liposomes. Mixtures of one or more drugs are also contemplated.

[0097] The drug or agent may be contained within a primary package or "drug container" adapted for use with the drug delivery device. The drug container may be, for example, a cartridge, syringe, reservoir, or other sturdy or flexible container configured to provide a chamber suitable for storage (e.g., short-term or long-term storage) of one or more drugs. For example, in some cases, the chamber may be designed to store the drug for at least one day (e.g., from one day to at least 30 days). In some cases, the chamber may be designed to store the drug for about one month to about two years. Storage may occur at room temperature (e.g., about 20°C) or at refrigerated temperatures (e.g., from about -4°C to about 4°C). In some cases, the drug container may be or include a dual-chamber cartridge configured to separately store two or more components of a pharmaceutical formulation to be administered (e.g., an API and a diluent or two different drugs), one in each chamber. In some cases, the two chambers of the dual-chamber cartridge may be configured to allow mixing between two or more components before and / or during administration into the human or animal body. For example, the two chambers may be configured so that they are in fluid communication with each other (e.g., by a conduit between the two chambers), allowing the user to mix the two components if desired before administration. Alternatively or additionally, the two chambers may be configured to allow mixing upon administration of the components into the human or animal body.

[0098] The drugs or agents contained in the drug delivery devices described herein can be used to treat and / or prevent many different types of medical disorders. Examples of disorders include, for example, diabetes mellitus or complications associated with diabetes mellitus, such as diabetic retinopathy, and thromboembolic disorders, such as deep vein thromboembolism or pulmonary thromboembolism. Further examples of disorders include acute coronary syndrome (ACS), angina pectoris, myocardial infarction, cancer, macular degeneration, inflammation, hay fever, atherosclerosis, and / or rheumatoid arthritis. Examples of APIs and drugs include those listed in handbooks such as the Rote Liste 2014, e.g., but not limited to, Main Group 12 (antidiabetic drugs) or 86 (oncology drugs), and the Merck Index, 15th edition.

[0099] Examples of APIs for the treatment and / or prevention of type 1 or type 2 diabetes mellitus or complications associated with type 1 or type 2 diabetes mellitus include insulin, e.g., human insulin, or an insulin analog or derivative; glucagon-like peptide (GLP-1); a GLP-1 analog or GLP-1 receptor agonist; or an analog or derivative thereof; a dipeptidyl peptidase-4 (DPP4) inhibitor; or a pharmaceutically acceptable salt or solvate thereof, or any mixture thereof. As used herein, the terms "analog" and "derivative" refer to a polypeptide having a molecular structure that can be formally derived from the structure of a naturally occurring peptide, e.g., the structure of human insulin, by deleting and / or substituting at least one amino acid residue present in the naturally occurring peptide and / or by adding at least one amino acid residue. The added and / or substituted amino acid residue can be either a codable amino acid residue or another naturally occurring residue, or a purely synthetic amino acid residue. Insulin analogs are also referred to as "insulin receptor ligands." In particular, the term "derivative" refers to a polypeptide having a molecular structure formally derivable from that of a naturally occurring peptide, e.g., the structure of human insulin, in which one or more organic substituents (e.g., fatty acids) are attached to one or more of the amino acids. Optionally, one or more amino acids present in the naturally occurring peptide may be deleted and / or substituted by other amino acids, including non-codable amino acids, or amino acids, including non-codable amino acids, may be added to the naturally occurring peptide.

[0100] Examples of insulin analogues are Gly(A21), Arg(B31), Arg(B32) human insulin (insulin glargine); Lys(B3), Glu(B29) human insulin (insulin glulisine); Lys(B28), Pro(B29) human insulin (insulin lispro); Asp(B28) human insulin (insulin aspart); human insulin in which the proline in position B28 can be replaced by Asp, Lys, Leu, Val or Ala and in position B29 Lys can be replaced by Pro; Ala(B26) human insulin; Des(B28-B30) human insulin; Des(B27) human insulin and Des(B30) human insulin.

[0101] Examples of insulin derivatives are, for example, B29-N-myristoyl-des(B30) human insulin, Lys(B29)(N-tetradecanoyl)-des(B30) human insulin (insulin detemir, Levemir®), B29-N-palmitoyl-des(B30) human insulin, B29-N-myristoyl human insulin, B29-N-palmitoyl human insulin, B28-N-myristoylLysB28ProB29 human insulin, B28-N-palmitoyl-LysB28ProB29 human insulin, B30-N-myristoyl-ThrB29LysB30 human insulin. These include B29-N-palmitoyl-ThrB29LysB30 human insulin, B29-N-(N-palmitoyl-gamma-glutamyl)-des(B30) human insulin, B29-N-omega-carboxypentadecanoyl-gamma-L-glutamyl-des(B30) human insulin (insulin degludec, Tresiba®), B29-N-(N-lithocholyl-gamma-glutamyl)-des(B30) human insulin, B29-N-(ω-carboxyheptadecanoyl)-des(B30) human insulin, and B29-N-(ω-carboxyheptadecanoyl) human insulin.

[0102] Examples of GLP-1, GLP-1 analogs and GLP-1 receptor agonists are, for example, lixisenatide (Lyxumia®), exenatide (exendin-4, Byetta®, Bydureon®, a 39 amino acid peptide produced by the salivary glands of the flathead sea urchin), liraglutide (Victoza®), semaglutide, taspoglutide, albiglutide (Syncria®), dulaglutide (Trulicity®), rexendin-4, CJC-1134-PC, PB-1023, TTP-054, langrenatide / HM-11260C (efpegrenatide), HM-15211, CM-3, GLP-1 Erigen, ORMD-0901, NN-9423, NN-9709, NN-9924, NN-9926, NN-9927, Nodexene, Viador-GLP-1, CVX-096, ZYOG-1, ZYD-1, GSK-2374697, DA-3091, MAR-701, MAR709, ZP-2929, ZP-3022, ZP-DI-70, TT-401 (pegapamodtide), BHM-034, MOD-6030, CAM-2036, DA-15864, ARI-2651, ARI-2255, tirzepatide (LY3298176), bamadutide (SAR425899), exenatide-XTEN, and glucagon-Xten.

[0103] An example of an oligonucleotide is, for example, mipomersen sodium (Kynamro®), a cholesterol-lowering antisense therapeutic agent for the treatment of familial hypercholesterolemia, or RG012 for the treatment of Alport syndrome. Examples of DPP4 inhibitors are linagliptin, vildagliptin, sitagliptin, denagliptin, saxagliptin, and berberine.

[0104] Examples of hormones include pituitary or hypothalamic hormones or regulatory active peptides such as gonadotropins (follitropin, lutropin, chorion gonadotropin, menotropin), somatropin (somatropin), desmopressin, terlipressin, gonadorelin, triptorelin, leuprorelin, buserelin, nafarelin, and goserelin, and their antagonists.

[0105] Examples of polysaccharides include glycosaminoglycans, hyaluronic acid, heparin, low molecular weight heparin, or ultra-low molecular weight heparin, or derivatives thereof, or sulfated polysaccharides, such as polysulfated forms of the above polysaccharides, and / or pharmaceutically acceptable salts thereof. An example of a pharmaceutically acceptable salt of polysulfated low molecular weight heparin is enoxaparin sodium. An example of a hyaluronic acid derivative is Hylan G-F20 (Synvisc®), sodium hyaluronate.

[0106] As used herein, the term "antibody" refers to an immunoglobulin molecule or an antigen-binding portion thereof. Examples of antigen-binding portions of immunoglobulin molecules include F(ab) and F(ab')2 fragments that retain antigen-binding ability. An antibody can be a polyclonal antibody, a monoclonal antibody, a recombinant antibody, a chimeric antibody, a deimmunized or humanized antibody, a fully human antibody, a non-human (e.g., murine) antibody, or a single-chain antibody. In some embodiments, an antibody has effector function and can fix complement. In some embodiments, an antibody has reduced or no binding ability to Fc receptors. For example, an antibody can be an isotype or subtype, antibody fragment, or mutant that does not support Fc receptor binding, e.g., with a mutation or deletion of the Fc receptor binding region. The term antibody also includes antigen-binding molecules based on tetravalent bispecific tandem immunoglobulins (TBTIs) and / or dual variable region antibody-like binding proteins with a crossover binding region orientation (CODV).

[0107] The term "fragment" or "antibody fragment" refers to a polypeptide derived from an antibody polypeptide molecule (e.g., an antibody heavy and / or light chain polypeptide) that does not include the full-length antibody polypeptide but comprises at least a portion of the full-length antibody polypeptide that is still capable of binding to antigen. Antibody fragments can include truncated portions of a full-length antibody polypeptide, but the term is not limited to such truncated fragments. Antibody fragments useful in the present invention include Fab fragments, F(ab')2 fragments, scFv (single-chain Fv) fragments, linear antibodies, monospecific or multispecific antibody fragments, such as bispecific, trispecific, tetraspecific, and multispecific antibodies (e.g., diabodies, triabodies, and tetrabodies), monovalent or multivalent antibody fragments, such as bivalent, trivalent, tetravalent, and multivalent antibodies, minibodies, chelating recombinant antibodies, tribodies or bibodies, intrabodies, nanobodies, small modular immunopharmaceuticals (SMIPs), binding domain immunoglobulin fusion proteins, camelized antibodies, and VHH-containing antibodies. Additional examples of antigen-binding antibody fragments are known in the art.

[0108] The term "complementarity determining region" or "CDR" refers to short polypeptide sequences within the variable regions of both heavy and light chain polypeptides that are primarily responsible for mediating specific antigen recognition. The term "framework region" refers to amino acid sequences within the variable regions of both heavy and light chain polypeptides that are not CDR sequences but are primarily responsible for maintaining the proper orientation of the CDR sequences to enable antigen binding. Although the framework regions themselves typically do not directly participate in antigen binding, as is known in the art, certain residues within the framework regions of a particular antibody can be directly involved in antigen binding or can affect the ability of one or more amino acids in the CDRs to interact with the antigen.

[0109] Examples of antibodies are anti-PCSK-9 mAb (e.g., alirocumab), anti-IL-6 mAb (e.g., sarilumab), and anti-IL-4 mAb (e.g., dupilumab).

[0110] Pharmaceutically acceptable salts of any of the APIs described herein are also contemplated for use as drugs or medicaments in drug delivery devices. Pharmaceutically acceptable salts include, for example, acid addition salts and base salts.

[0111] It will be understood by those skilled in the art that modifications (addition and / or deletion) of the various components of the APIs, formulations, devices, methods, systems and embodiments described herein may be made without departing from the full scope and spirit of the invention, which includes such modifications and any and all equivalents thereof.

[0112] An exemplary drug delivery device may include a needle-based injection system as described in Table 1 of Section 5.2 of ISO11608-1:2014(E). As described in ISO11608-1:2014(E), needle-based injection systems may be broadly divided into multi-dose container systems and single-dose (partial or full discharge) container systems. The container may be a replaceable container or an integrated non-replaceable container.

[0113] As further described in ISO 11608-1:2014(E), a multi-dose container system may include a needle-based injection device with replaceable containers. In such a system, each container holds multiple doses and may be fixed or variable in size (pre-set by the user). Another multi-dose container system may include a needle-based injection device integrated with non-replaceable containers. In such a system, each container holds multiple doses and may be fixed or variable in size (pre-set by the user).

[0114] As further described in ISO 11608-1:2014(E), a single-dose container system may include a needle-based injection device with replaceable containers. In one example of such a system, each container holds a single dose, thereby discharging the entire deliverable amount (full discharge). In a further example, each container holds a single dose, thereby discharging a portion of the deliverable amount (partial discharge). Also as described in ISO 11608-1:2014(E), a single-dose container system may include a needle-based injection device with an integrated, non-replaceable container. In one example of such a system, each container holds a single dose, thereby discharging the entire deliverable amount (full discharge). In a further example, each container holds a single dose, thereby discharging a portion of the deliverable amount (partial discharge).

[0115] A number of examples of injection devices and data logging devices for monitoring the use of the respective injection devices are described in more detail below with reference to the drawings. [Brief explanation of the drawings]

[0116] [Figure 1] 1 shows a schematic diagram of an example of an injection device. [Figure 2] 10 illustrates the process of assembling an add-on device to the proximal end of the injection device. [Figure 3] 1 shows three different configurations of an add-on device attached to the proximal end of an injection device. [Figure 4] 10 shows three further configurations of another example of an add-on device attached to the proximal end of an injection device. [Figure 5] 1 shows an example of an injection device. [Figure 6] 10 shows another example of an add-on device when attached to an injection device. [Figure 7] 1 shows three different examples of an attachment device, each shown in a first and second configuration. [Figure 8] 2 illustrates a specific configuration of an external electronic device. [Figure 9]1 illustrates mutual pairing of an additional device with an external electronic device. [Figure 10] 13 shows the reading of the machine-readable ID of the injection device during the process of assembling the add-on device to the injection device. [Figure 11] 10 illustrates the configuration of the external electronic device after successful mutual pairing of the additional device, the injection device, and the external electronic device. [Figure 12] 10 shows an example of the operation of an add-on device when attached to an injection device. [Figure 13] 10 shows a further example of the operation of an add-on device when attached to an injection device. [Figure 14] 1 shows a block diagram of an additional device, an injection device, and an external electronic device. [Figure 15] 1 shows a flowchart of a method for configuring an adjunct device. DETAILED DESCRIPTION OF THE INVENTION

[0117] FIG. 1 shows an example of a drug delivery device 1 implemented as a handheld injection device. The injection device 1 may include or be implemented as a pen-type injector. The injection device 1 may be implemented as a disposable injection device or a reusable injection device. In some examples, the injection device 1 is implemented as an autoinjector. The injection device 1 has an elongated shape. The injection device 1 may extend along a longitudinal direction. The drug delivery device 1 comprises, at a longitudinal distal direction 2, a dosing end for dosing or injecting a medication 24. At a proximal direction 3, the injection device 1 comprises at least one of a dose member 8 and a trigger 9, by which doses of equal, individual, or different sizes can be set and dispensed, respectively.

[0118] The injection device 1 comprises a housing 10. The housing 10 may comprise a number of housing components, such as a body 6 and a cartridge holder 7. The body 6 may be sized and configured to accommodate a drive mechanism 20. The cartridge holder 7 is sized and configured to accommodate a medicament container 21, implemented, for example, as a cartridge containing a liquid medicament 24. The medicament container 21 comprises a tubular barrel 22 sealed towards its distal end by a seal 23. The seal 23 may include a pierceable septum secured to an outlet 25 of the medicament container 21. The interior of the barrel 22 is sealed towards its proximal end by a piston 18 or stopper slidably disposed within the barrel 22.

[0119] A dose of medicament 24 can be expelled from the medicament container 21 by advancing the piston 18 in the distal direction 2. In use, the medicament container 21 is disposed inside the cartridge holder 7. The drive mechanism 20 of the injection device 1 comprises a piston rod 19 that is displaceable in the distal direction 2 to advance the piston 18 towards the outlet 25 of the medicament container 21. Details of the drive mechanism will not be further shown or described herein. In some examples, the drive mechanism 20 may be implemented as an all-mechanical drive mechanism in which the user must provide all of the dosing force required to move the piston rod 19, and therefore the piston 18, in the distal direction 2. In other examples, the drive mechanism comprises a mechanical energy store configured to provide at least a portion of the dosing force. Examples of drive mechanisms can be found, for example, in WO 2004 / 078241, WO 2014 / 033197, or WO 2014 / 033195, each of which is incorporated herein by reference in its entirety.

[0120] 2, the injection device 1, and thus the drive mechanism 20, may comprise a dial extension 27 that moves proximally in the proximal direction 3 from the proximal end of the body 6 at or during dose setting and returns to an initial distal position during the dose injection procedure. To this end, the user may use the thumb 114 of their hand 110 to exert distal pressure on the trigger 9, thereby urging the dial extension 27 in the distal direction 2 during the dose injection procedure.

[0121] To set or dial a dose, the user may twist or rotate the dose dial 8, for example, in the dose increment direction 4, and thus clockwise as viewed from the proximal end. To modify a previously set dose, the user may rotate the dose dial 8 in the opposite dose decrement direction 5. The dose size is typically indicated in a window 26 provided in or on the body 6 of the injection device 1. Before injecting a dose of medicament 24, the distal end of the cartridge holder 7 must be connected to the needle assembly 12. For this purpose, the distal end of the cartridge holder 7 is provided with a connector 11, for example in the form of a threaded interface for engaging a complementary threaded mating interface on the needle assembly 12.

[0122] The needle assembly 12 is detachably or removably securable to the cartridge holder 7. The needle assembly 12 includes a double-ended injection needle 13. The proximal end (not shown) of the needle is configured to enter a through opening in the distal end face of the connector 11 or cartridge holder 7 so as to puncture or penetrate the seal 23 of the medication container 21. The distal end of the injection needle 13 is typically covered by a removable inner needle cap 14. The entire needle assembly 12 may be covered by a removable outer needle cap 15.

[0123] The cartridge holder 7 , and thus part of the housing 10 , is received in a protective cap 16 , which is removably connectable to the cartridge holder 7 or to the body 6 .

[0124] 2 and 3 show an example of an add-on device 30 configured to fasten to the proximal end of the injection device 1. The add-on device 30 comprises a sensor 48 or sensor assembly operable to detect, recognize, characterize and / or measure the operation of the injection device 1.

[0125] The attachment device 30 shown in various Figures 2 to 14 is removably connectable to the dose dial 8. The attachment device 30 comprises a device body 60 with a tubular side wall 61. At its distal end, the side wall 61 defines a receptacle 63 sized to receive the dose dial 8 and trigger 9 of the injection device 1. To this end, the inside of the side wall 60 may be provided with one or multiple fastening ribs 64 configured to provide a non-slip fastening of the attachment device 30 to the dose dial 8.

[0126] The device body 60 comprises a receptacle 63 at the distal end of the addition device 30. The receptacle 63 is open in the distal direction 2. The receptacle 63 is sized and configured to fit over the proximal end of the injection device 1. The inner surface of the side wall 61 enclosing the receptacle 63 comprises a number of fastening ribs 64 of a resilient or elastically deformable material, for example an elastomeric material.

[0127] The fastening ribs 64 provide a friction fit with the dose dial 8 when the device body 60 is assembled to the dose dial 8 of the injection device 1. The receptacle 63 may be longitudinally confined by a flange portion 62 protruding radially inward from the tubular side wall 61 of the receptacle 63. The flange portion 62 is located proximally offset from the insertion opening of the receptacle 63. The flange portion 62 may have an annular shape and may be configured to axially abut a stepped section at the proximal end of the dose dial 8. Thus, the trigger 9, which has a reduced diameter compared to the dose dial 8, may protrude in the proximal direction 3 through the flange portion 62, while the flange portion 62 may rest or abut against the proximal end face of the dose dial 8 when the add-on device 30 is properly fastened to the dose dial 8.

[0128] The add-on device 30 further comprises a movable part 70 that protrudes proximally from the device body 60. The movable part 70 comprises or forms an auxiliary trigger or trigger button that is configured to mechanically engage with the trigger 9 of the injection device 1 when the add-on device 30 is properly assembled to the injection device 1.

[0129] Typically, the add-on device 30, and in particular the device body 60, is frictionally engageable with the dose dial 8. In this way, a user can apply a dose setting torque to the dose dial via the device body 60. Instead of rotating the dose dial 8 to set a dose, a user can simply rotate the device body 60 relative to the body 6 of the injection device 1. In this way, the dial extension 27 can perform a dial setting or rotational movement that increments the dose. The respective size of the currently set dose is then displayed in the window 26 of the body 6 of the injection device 1, as shown in FIG. 2 .

[0130] To dispense a dose, the user must press the movable part 70, which may then make a distal movement relative to the device body 60. The movable part 70, which may be in direct or indirect mechanical engagement with the trigger 9, may then apply a respective dosing force to the trigger 9, thereby initiating the dose dispensing operation of the injection device 1.

[0131] The attachment device 30, shown schematically in Figure 14, comprises an electronic module 34. The electronic module 34 comprises a printed circuit board 36. The electronic module 34 comprises a processor 44, an electronic memory 40, and a clock 42. Furthermore, the electronic module 34 comprises a power supply 46 and a sensor 48. The electronic module 34 also comprises a signal generator 52 coupled to the processor 44 and / or coupled to the power supply 46. The electronic module 34 further comprises a reader 37 and at least one of wireless transceivers 38, 39. The attachment device 30 may also comprise a user-perceivable device ID 50.

[0132] In some examples, the device ID 50 comprises or includes a signal generator 52 coupled to the processor 44, the signal generator 52 being operable or reconfigurable by the processor 44. In some examples, the device ID 50 comprises an electronic display 51 operable to visually show various identifiers 55 indicative of the injection device 1 to which the add-on device 30 is connected or coupled.

[0133] In some examples, the signal generator 52 generates at least one of a visual device ID, an acoustic device ID, and a tactile device ID, and is therefore operable to produce or generate a visual identifier, an acoustic identifier, or a tactile identifier.

[0134] In some examples, the attachment device 30 comprises multiple signal generators 52, where a first signal generator may be operable to generate a visual device ID or visual identifier, another electronic signal generator 52 may be operable to generate an acoustic identifier, and / or a further signal generator 52 may be operable and configured to generate a tactile identifier.

[0135] In the example of Figure 2, the signal generator 52 may comprise a speaker operable to generate an acoustic signal, which represents or constitutes an identifier, for example in the form of an acoustic code or acoustic sequence, which indicates the injection device 1 or which indicates the medication 24 located inside the medication container 21 of the injection device 1.

[0136] The electronic signal generator 52 is coupled to the processor 44 of the add-on device 30, in particular to the processor 44 of the electronic module 34 of the add-on device 30. The processor 44 is configured to generate different acoustic signals in cooperation with the signal generator 52 implemented as a speaker. Here, a first acoustic signal indicative of a first injection device 1 or a medicament 24 and at least a second acoustic signal indicative of another injection device 1' or another medicament 24' can be generated. The first and second acoustic signals are therefore audibly distinguishable by a user of the injection device 1.

[0137] In the example of Fig. 3, the movable part 70 forms or configures a reconfigurable, user-perceptible device ID 50. Three different configurations of the reconfigurable device ID 50 are shown in Fig. 3. When or while the attachment device 30 is attached to the first injection device 1, the attachment device 30 is configured to read the machine-readable ID 28 of the injection device 1. The machine-readable ID 28 may be implemented as an electronic identifier 29, as shown in Fig. 14, and may be configured to communicate with a suitable reader 37, for example a short-range transceiver 38, of the attachment device 30. The transceiver 38 is operable to read the machine-readable ID 28 of the injection device 1.

[0138] The reader 37 or transceiver 38 is operatively connected to the processor 44 and is therefore operable to transfer data obtained from the machine-readable ID 28 to the processor 44. The processor 44 is then operable to process the machine-readable information obtained from the machine-readable ID 28 and further operable to configure or reconfigure the user-perceptible device ID 50. In the example shown in FIG. 3 , the user-perceptible device ID 50 comprises a signal generator 52, implemented, for example, as a light source operable to illuminate the movable portion 70. Here, the movable portion 70 may comprise at least one of a window and a transparent portion through which an optical signal generated by the light source of the electronic signal generator 52 is visible. Also, the entire movable portion protruding from the device body 60 may comprise a transparent or translucent material. The transparent or translucent material may include, for example, a matte or translucent plastic material that provides optical diffusion when illuminated by the light source. In this way, the movable portion may be uniformly illuminated.

[0139] The configuration or reconfiguration of the user-perceptible device ID 50 typically occurs during the assembly of the add-on device 30 to the injection device 1. In the example shown on the left side of FIG. 3 , the add-on device 30 is attached to a first injection device 1 that includes a first machine-readable ID 28. A reader 37 or transceiver 38 of the add-on device 30 is operable to read the machine-readable ID 28, which indicates the type of injection device 1 or the medication 24 located therein. In response to reading the machine-readable ID 28, a processor 44 of the add-on device 30 obtains characteristic information of the injection device 1 provided by the machine-readable ID 28. Then, in response to receiving the machine-readable ID data, the processor 44 is operable to reconfigure the user-perceptible device ID 50, which may then create or generate a first identifier 55 visible at or through the movable portion 70. In the example shown in FIG. 3 , the movable portion 70 may be illuminated with a first color, thus forming or configuring the first identifier 55.

[0140] In the middle illustration of Figure 3, the add-on device 30' is attached to another injection device 1' that has another machine-readable ID 28'. Thus, in response to reading the machine-readable ID 28', the processor 44 reconstructs the user-perceptible device ID 50 and then generates a second identifier 55'. The second identifier 55' can be distinguished from the first identifier 55 by its color.

[0141] In a further example shown on the right side of Fig. 3, an additional device 30'' is attached to another injection device 1'' and is distinguished from the injection device 1, 1' or from the medicament 24 located inside the respective injection device 1, 1'. Additionally or alternatively, the injection device 1'' may be distinguished from the injection devices 1, 1' with regard to its operability.

[0142] The attachment device 30'' is configured to read the machine-readable ID 28'' and reconstruct its user-perceptible device ID 50, thereby generating a third identifier 55'' that is distinct from the other identifiers 55, 55'. Again, the identifier 55'' may be distinguished from the other identifiers 55, 55' by its color.

[0143] 4, a similar reconfiguration of the add-on device 30 is performed. Here, the add-on device 30 includes a user-perceptible device ID 50 implemented as a transparent or translucent window 56 that is integrated into a side wall 61 of a device body 60. The window 56 may be provided at or near the proximal end of the side wall 61. The window or window section 56 may have an annular shape. The window or window section 56 may be made of a transparent or translucent, e.g., frosted and / or translucent plastic, material that includes or forms a light guide or light guiding structure optically coupled to the electronic signal generator 52, e.g., including at least one or more light sources.

[0144] As shown in the left section of Figure 4, when the attachment device 30 is attached to the first injection device 1, the user-perceivable device ID 50, and therefore the window section 56, is operable to generate a first identifier 55 characterized by a first color.

[0145] In another configuration of the add-on device 30', the user-perceptible device ID 50 is reconfigured when the add-on device 30 is attached to a different type of injection device 1' with a different machine-readable ID 28'. Thus, the window 56 forms or constitutes a second identifier 55'. For example, the window 56 appears in a second color.

[0146] Upon attachment of the attachment device 30'' to the further attachment device 1'', and upon reading of the respective machine-readable modification 28'', the device ID 50 produces or generates a third identifier 55'', where the window 56 appears in a third color that is distinct from the color of the identifiers 55, 55'.

[0147] As further shown in Fig. 5, in the example of the injection system 120, the add-on device 30 attached to the injection device 1 is in a first configuration, whereby the add-on device 30 can generate a first identifier 55 on or through the movable part 70. Here, the movable part 70 can be illuminated in a color substantially identical to the color of the label 17 on the body 6 of the injection device 1. The label 17 provided on the outer surface of the side wall of the body 6 can be distinguished from other devices only by the color of the body 6. In another example, the label 17 can be a printed label. The label 17 can represent the ID 28 of the injection device, and thus the machine-readable ID 28, for example in the form of an optical or visual code.

[0148] In some examples, if the label 17, and therefore the machine-readable ID 28, is the color of part of the housing of the injection device 1, it may be beneficial if the user-perceptible device ID 50 of the additional device 30 is illuminated or reproduced in the same color as the color of the label 17.

[0149] In some examples, the machine-readable ID 28, implemented as an electronic identifier readable, for example, by a reader 37 or by a short-range transceiver 38 of the add-on device 30, may simply include a code representing the color of the label 17. As further shown in Figures 5 and 14, the injection system 120 comprises the injection device 1 and the add-on device 30.

[0150] Optionally, the injection system 120 may further comprise an external electronic device 100. The external electronic device 100 comprises a housing 101 as shown in FIG. 8 . The electronic device 100 may be implemented as a portable electronic device. Portable external electronic devices may include smartphones, smartwatches, or tablet computers. The external electronic device 100 typically comprises a device processor 144 coupled to an electronic device memory 140. The electronic device 100 further comprises a device power supply 146. The electronic device 100 also comprises a device display 151, typically implemented as a touch-sensitive display. The device display 151 may be operable to provide or emulate a device signal generator 152. Thus, the device display 151 is operable to provide at least one of an illustration 153 and a notification 154 to the user.

[0151] In some examples, the external electronic device 100 is operable to generate a device ID 150 that indicates the injection device 1 currently being used or currently connected to the additional device 30. As shown in particular in Figure 14, the external electronic device 100 comprises a device reader 137 and at least one of eight device transceivers 138, 139. The device transceiver 138 may be implemented as a short-range wireless transceiver. The transceiver 139 may be implemented as a local area wireless transceiver.

[0152] The device transceiver 138 is operable to communicate with the transceiver 38 of the additional device. The transceiver 139 is configured to communicate with the transceiver 39 of the additional device 30. The reader 137 may be operable to read a visual identifier provided on the injection device 1. In some examples, the device reader 137 comprises an imaging system. The device reader 137 may comprise a camera objective and a spatial resolution detector for reading or capturing a visual code, for example, provided on the exterior of the injection device 1 or on the exterior of the medication container 21.

[0153] The external device 100 is configured to establish a communications link, for example a wireless communications link, with the attached device 30. To this end, the local area transceiver 39 of the attached device 30 may wirelessly communicate with the local area device transceiver 139 of the attached device 100. Once a communications link is established between the electronic device 100 and the attached device 30, the electronic device 100 may be operable to visually indicate a device ID 150 on the device display 151. The device ID 150 indicated on the device display 151 may correspond to a device ID 50 or identifier 55 reproduced or provided by the attached device 30. In some examples, the color of the identifier 55 generated by the device ID 50 may correspond to or be equal to the color of the device ID 150 reproduced on the display 151 of the external electronic device 100.

[0154] The electronic device 100 is typically implemented as a handheld electronic device. The electronic device 100 can be held in a user's hand 110. In a further example (not shown), the external electronic device 100 can be worn on the user's wrist 111. In the example shown in Figure 5, the electronic device 100 is held in the user's palm 112. The device display 151 is implemented as a touch-sensitive display and can be operated by the thumb 114 and / or various fingers 116 of the user's hand 110.

[0155] 6 and 7 show another example of an add-on device 30. The add-on device 30 also comprises a device body 60, which in turn comprises its own display 51. The add-on device 30 shown in FIGS. 6 and 7 comprises a fastener 65, for example in the form of a mount configured to attach to the distal end of the body 6 of the injection device 1. The add-on device 30 can be attached to the interface between the cartridge holder 7 and the body 6 of the injection device 1. The fastener 65, for example in the form of an annular or clip-like mount, is rigidly connected to the planar display 51 via a neck portion 66 that projects radially outward from the side wall of the body 6 when the add-on device 30 is properly attached to the injection device 1. The display 51 has a substantially planar shape and extends parallel to the longitudinal direction of the body 6.

[0156] 6, the user-perceivable device ID 50 is provided by an electronic display 51 of the add-on device 30. Here, the color of the display 51, for example the background color of the display 51, may indicate the machine-readable ID 28 of the injection device 1.

[0157] As shown in Figure 7, in a first example of an attachment device 30, the entire display 51 can be configured to reproduce or generate a first identifier 55 or a second identifier 55'. The first identifier 55 and the second identifier 55' are distinguished from each other by their colors. In the example of an attachment device 30 reproduced on the left side of Figure 1, the identifiers 55, 55' are distinguished by their colors. Here, the machine-readable ID can be reproduced on the display 51 by a change in the background color of the display 51.

[0158] In a further example, reproduced in the middle section of FIG. 7 , the add-on device 30′ comprises a display 51 divided into different sections 53, 54. The first display section 53 is operable to visually indicate certain injection device-related parameters or may provide a readable notification to the user. The display section 54 represents a first identifier 55 or a second identifier 55′. With the first identifier 55 of the add-on device 30′, the display section 54 is reproduced in a first color. With the second identifier 55′ of the add-on device 30′, the display section 54′ is reproduced in a second, and therefore different, color.

[0159] In another example of a reconfigurable display 51, shown on the right side of FIG. 7 , the display 51 is divided into a first display section 53 surrounded by a second display section 54. The first display section 53 is configured to visually show various device parameters of the injection device 1 and / or the add-on device 30. The surrounding second display section 54 is operable to generate or reproduce a variable identifier 55, 55′. With respect to the add-on device 30″, in a first configuration, the second display section 54 is configured to generate the first identifier 55. Here, the second display section 54 may be provided in a first color. In another configuration of the add-on device 30″, the identifier 55′ changes. Here, the display section 54′ is illuminated, for example, in a color that is distinct from the color of the display section 54 of the add-on device 30″.

[0160] 3-7 illustrate a reconfigurable, user-perceivable device ID 50 operable to change its visual appearance. In the same or similar manner, device ID 50 may comprise an electronic signal generator 52, implemented for example as a speaker or as a vibration module, which may generate characteristic acoustic or vibration sequences that are perceivable to the user in the same or similar manner as compared to various appearances that may be distinguished by visible patterns or similar visual illustrations.

[0161] 9 , when using the injection device 1 with the additional device 30, the additional device 30 may be wirelessly paired with the external electronic device 100, where a wireless pairing routine may be performed or initiated by the external electronic device 100. As an example, the local area device transceiver 139 of the external electronic device 100 may establish a communication link with the local area transceiver 39 of the additional device 30.

[0162] Here, the external electronic device 100 may be paired with the auxiliary device 30 via a Bluetooth connection or by a Bluetooth low energy communication link. Once the communication link is established, the external electronic device 100 may be operable to visually indicate a device ID 150 on the device display 151, as shown in FIG. 9 , indicating to the user that it has detected the presence of the auxiliary device 30 within transmission range of the external electronic device 100. The user may facilitate or trigger the pairing of the auxiliary device 30 and the external electronic device 100 by pressing a respective connect button emulated or illustrated on the device display 151.

[0163] Thereafter, or even before pairing the add-on device 30 with the external electronic device 100, the add-on device 30 is connected to the injection device 1 as shown in Figure 10. Before or while mounting the add-on device 30 onto the dose dial 8 at the proximal end of the injection device 1, the short-range transceiver 38 of the add-on device 30 reads the machine-readable ID 28 provided on or in the injection device 1.

[0164] To this end, it may be advantageous if the machine-readable ID 28 comprises an electronic identifier 29, such as an NFC tag, readable by a short-range transceiver 38 of the attachment device 30. Upon reading of the machine-readable ID 28, which may be located inside or outside the injection device 1, characteristic information indicative of the type of injection device 1 and / or the type of medication 24 dispensed by the injection device 1 may be provided and transferred to the attachment device 30. According to the data collected from the machine-readable ID 28, the processor 44 of the attachment device 30 is operable to configure or reconfigure a user-perceivable device ID 50.

[0165] The pairing of the additional device 30 with the injection device 1 and the reading of the machine-readable ID 28 performed by the additional device 30 may also be transmitted to the external electronic device 100, which may then indicate to the user that the additional device 30 is properly paired and / or mechanically connected to the injection device 1.

[0166] 11 , the electronic device display 151 may provide an illustration 153 of the injection device 1. The electronic device display 151 may further provide a notification 154 to the user that the attachment device 30 has detected a particular type of injection device 1 and / or that the attachment device 30 has read the machine-readable ID 28 of this particular injection device 1. When the attachment device 30 is properly assembled to the injection device 1, upon configuring or reconfiguring the user-perceivable device ID, the attachment device 30 creates or generates a permanent, permanent, or temporary identifier 55 that is perceivable by the user and that characterizes the injection device 1 according to the machine-readable ID 28.

[0167] In the example shown in Figure 12, the device ID 55 is integrated into a movable portion 70 of the attachment device 30 and is operable to provide a visible identifier 55 in the form of illuminating the movable portion 70 in a characteristic color or by generating a characteristic temporary lighting sequence.

[0168] In some examples, the color of the movable part 70, and therefore the identifier 55, may comprise the same or similar color as the label 17 provided on the exterior of the body 6 of the injection device. The same color may be reproduced on the display 151 of the external electronic device 100 as the device ID 150. Additionally, the external electronic device 100 may provide a notification 154 containing instructions regarding operation of the injection device or instructions regarding a prescribed dosing schedule.

[0169] 13 shows a further configuration of the injection system 120. Here, the movable part 70 can still be illuminated in a characteristic color. Here, the notification 154 of the external electronic device 100 has been changed to a notification 154′. According to the prescribed medication schedule, the external electronic device 100 notifies the user to perform the injection procedure now. The external electronic device 100 also provides information regarding the administration of the medication. In addition to the notification 154′ provided on the electronic device display 151, the communication link between the external electronic device 100 and the additional device 30 can further be used to indicate to the user that an injection procedure is scheduled, for example by a simple modification of the identifier 55′.

[0170] Here, the identifier 55' may comprise a flashing or blinking light. Additionally, if equipped with an additional electronic signal generator 52, implemented for example as an audio or tactile signal generator, the external electronic device 100 may cause the generation of an audio or tactile signal as the identifier 55 on or by the additional device 30.

[0171] 15 shows a flow chart of a method for configuring the add-on device 30. In a first step 200, an injection device 1 as described above is provided. The injection device 1 comprises a machine-readable ID 28 indicating the type of injection device 1 and / or the type of medication 24 located within or intended to be injected with the injection device 1.

[0172] In a subsequent step 202, an add-on device 30 is also provided, as shown and described above. In step 204, the machine-readable ID 28 is read by either the add-on device 30 or the optional external electronic device 100. Based on the information obtained from the machine-readable ID 28, the user-perceptible device ID 50 of the add-on device 30 is configured or reconfigured to be permanently or temporarily compatible with a particular type of injection device 1.

[0173] In some examples, the device ID 50 is configured to permanently remain in a set or reconfigured state. Thus, the device ID 50 may permanently remain in a configured state and may permanently reflect or represent the injection device 1 to which the attachment device 30 is attached. Thus, in step 206, the user-perceptible device ID 50 of the attachment device 30 is reconfigured or configured according to the machine-readable ID 28. In some examples, the device ID 50 is operable to provide at least a first identifier 55 and a second identifier 55', where the first identifier 55 is distinguished from the second identifier 55' by its color.

[0174] In some examples, the machine-readable ID 28 is read by a reader 37 and / or transceiver 38, 39 of the attachment device 30. In other examples, the machine-readable ID 28 is read by the external electronic device 100. The respective information of the machine-readable ID 28 is then transferred to the attachment device 30 via a communication link between the attachment device 30 and the external electronic device 100.

[0175] In some examples, display 51 includes an electrophoretic display, which may be reconfigurable to appear in a variety of colors with minimal energy consumption. [Explanation of symbols]

[0176] 1. Injection device 2 Distal direction 3 Proximal direction 4 Dose Increment Direction 5 Dose decrement direction 6 Main unit 7 Cartridge holder 8 Dose Dial 9 Triggers 10. Housing 11 Connector 12 Needle Assembly 13 Syringe needle 14 Inner needle cap 15 Outer needle cap 16 Protective cap 17 Label 18 Piston 19 Piston rod 20 Drive mechanism 21 Medicine container 22 barrels 23 Seal 24 Drugs 25 Exit 26 Windows 27 Dial extension 28 ID 29 Electronic Identifiers 30 Additional Devices 34 Electronic Module 36 Printed Circuit Board 37 Leader 38 Transceiver 39 Transceiver 40 memory 42 Clock 44 processors 46 Power supply 48 sensors 50 ID 51 Display 52 Signal Generator 53 Display Section 54 Display Section 55 Identifier 56 Windows 60 Device body 61 Side wall 62 Flange part 63 Receptacle 64 Fastening rib 65 Fasteners 66 Neck area 70 Moving parts 100 Electronic Devices 101 Housing 102 Display 110 moves 111 Wrist 112 Palm 114 Thumb 116 fingers 120 Injection System 137 Device Reader 138 Device Transceiver 139 Device Transceiver 140 device memory 144 Device Processors 146 Device Power Supply 150 Device ID 151 Device Display 152 Signal Generator 153 Illustrations 154 Notification

Claims

1. An attachment device (30) for attachment to an injection device (1), said injection device (1) comprising a machine-readable ID (28), said attachment device (30) comprising: a device body (60) that can be fastened to a portion of the injection device (1); a reconfigurable and user-perceptible device ID (50); an electronic module (34) comprising a processor (44) coupled to the device ID (50), the processor (44) operable to reconfigure the device ID (50) according to the machine-readable ID (28) of the injection device (1); An attachment device (30) comprising:

2. The accessory device (30) of claim 1 further comprising a reader (37) and a transceiver (38, 39) coupled to the processor (44), at least one of the reader (37) and the transceiver (38, 39) operable to read or acquire the machine-readable ID (28) of the injection device (1).

3. 3. The accessory device (30) of claim 2, wherein the at least one of the reader (37) and the transceiver (38, 39) comprises a short-range wireless transceiver (38) operable to wirelessly communicate with the machine-readable ID (28) of the injection device (1) to read or obtain information or data provided by or in the machine-readable ID (28) of the injection device (1).

4. 4. The accessory device of claim 2 or 3, wherein at least one of the reader (37) and the transceivers (38, 39) comprises a local area wireless transceiver (39), the local area wireless transceiver (39) operable to wirelessly communicate with an external electronic device (100) to receive the machine-readable ID (28) of the injection device (1) from or via the external electronic device (100).

5. The attachment device (30) of any one of claims 1 to 4, wherein the device ID (50) in a first configuration represents a first identifier (55) indicative of a first machine-readable ID (28), and the device ID (50) in a second configuration represents a second identifier (55') indicative of a second machine-readable ID, and the first identifier (55) and the second identifier (55') are perceptually distinct from each other.

6. The attachment device (30) of any one of claims 1 to 5, wherein the device ID (50) comprises an electronic signal generator (52) controlled or operable by the processor (44).

7. 7. The attachment device (30) of claim 6, wherein the electronic signal generator (52) is operable to generate at least one of a visual device ID (50), an acoustic device ID (50), and a tactile device ID (50).

8. 8. The attachment device (30) of claim 6 or 7, wherein the electronic signal generator (52) is operable to generate different device IDs or different identifiers that are distinguished by at least one of color, brightness, and temporal variation.

9. The attachment device (30) of any one of claims 6 to 8, wherein the electronic signal generator (52) comprises at least two light sources of different colors to generate device IDs (50) that are differentiated in terms of color of the device IDs (50).

10. The attachment device (30) of any one of claims 1 to 9, further comprising an electronic display (51) coupled to the processor (44), the electronic display (51) operable to illustrate the device ID (50).

11. An attachment device (30), wherein the device ID (50) is permanently and / or persistently perceptible from outside the attachment device (30).

12. The attachment device (30) of any one of claims 1 to 11, wherein the device ID (50) is located on or integrated into the device body (60).

13. 13. The attachment device (30) of claim 1, further comprising a movable part (70) operably coupled to a trigger (9) of the injection device (1), the movable part (70) being movable relative to the device body (60), and the device ID (50) being located on or integrated within the movable part (70).

14. an injection device (1) for setting and injecting a dose of a medication (24), the injection device (1) comprising a machine-readable ID (28) indicating the type of the injection device (1) and / or the type of the medication (24); An additional device (30) according to any one of claims 1 to 13, which is detachably attachable to the injection device (1); An injection system (120) comprising:

15. The injection system (120) of claim 14 further comprises an external electronic device (100) operable to read the machine-readable ID (28) of the injection device (1) and to transmit the ID (28) of the injection device (1) to the additional device (30).

16. A method of configuring an attachment device (30), comprising: Providing an injection device (1) with a machine-readable ID (28); Providing an attachment device (30) according to any one of claims 1 to 13; reading said machine-readable ID (28); reconstructing the user-perceptible device ID (50) of the attached device (30) according to the machine-readable ID (28); A method comprising:

17. A computer program comprising computer-readable instructions that, when executed by a processor (44) of an attachment device (30), causes the processor (44) to reconfigure the user-perceptible device ID (50) according to the machine-readable ID (28) of the injection device (1).

Images