Method for controlling a medicament delivery device depending on a charging state

Abstract

The present disclosure generally relates to medicament delivery devices (1), and particularly concerns a method for controlling a medicament delivery device depending on a charging state.

Description

[0001] METHOD FOR CONTROLLING A MEDICAMENT DELIVERY DEVICE DEPENDING ON A CHARGING STATE

[0002] TECHNICAL FIELD

[0003] The present disclosure generally relates to medicament delivery devices, and particularly concerns methods for controlling a medicament delivery device depending on a charging state.

[0004] BACKGROUND

[0005] A number of medical conditions require injections. These days, a number of different injection devices exist, including various types of pen injectors, autoinjectors and infusion devices for large-volume injections. Although many of these devices have enabled major improvements in the management of a number of medical conditions, various limitations still exist in the current technology. In considering these problems, the applicant has appreciated that various developments could be made to help improve the medicament delivery devices on the market today, for example concerning safety aspects of electrically powered medicament delivery devices that require electrical charging.

[0006] SUMMARY

[0007] An object of the present disclosure is to provide a method for controlling a medicament delivery device, which solves, or at least mitigates problems of the prior art.

[0008] According to a first aspect of the present disclosure, there is provided a method for controlling a medicament delivery device configured to receive a medicament cassette, the medicament delivery device comprises a rechargeable battery, an electric motor powered by the rechargeable battery, a charging port for enabling charging of the rechargeable battery from an external power source, a processing circuitry, and an input device configured to provide a signal to the processing circuitry indicative of that a medicament cassette is inserted in the medicament delivery device, the method comprising: detecting, by the processing circuitry, that an external power source is connected to the charging port, and in response, preventing the processing circuitry from detecting that a medicament cassette is inserted in the medicament delivery device.

[0009] Embodiments of the present disclosure advantageously provide for reducing or even eliminating, the risk of an injection occurring while the battery of the medicament delivery device is being charged. In fact, embodiments of the present disclosure advantageously prevent injection while a power chord or charger is connected to the charging port of the medicament delivery device. In other words, the risk of electrical shock, or any other electrical -related hazard to a user that may emanate from the medicament delivery device being connected to the power source during an injection is significantly reduced. This is because as long as a power source is connected to the charging port, the processing circuitry of the medicament delivery device cannot detect that a medicament cassette is inserted in the medicament delivery device.

[0010] The medicament cassette accommodates a medicament container with the medicament inside the container. The disposable medicament cassette is inserted in the electrically motored medicament delivery device prior to an injection.

[0011] The input device is a device which can detect a medicament cassette, or that is triggered by the insertion of a medicament cassette in the medicament delivery device, such that the processing circuitry may receive a signal indicating the insertion of the medicament cassette in the medicament delivery device.

[0012] In the present disclosure, when the term “distal direction” is used, this refers to the direction pointing away from the dose delivery site during use of the medicament delivery device. When the term “distal part / end” is used, this refers to the part / end of the delivery device, or the parts / ends of the components thereof, which under use of the medicament delivery device is / are located furthest away from the dose delivery site. Correspondingly, when the term “proximal direction” is used, this refers to the direction pointing towards the dose delivery site during use of the medicament delivery device. When the term “proximal part / end” is used, this refers to the part / end of the delivery device, or the parts / ends of the members thereof, which under use of the medicament delivery device is / are located closest to the dose delivery site.

[0013] Further, the term “longitudinal”, “longitudinally”, “axially” or “axial” refer to a direction extending from the proximal end to the distal end, typically along the device or components thereof in the direction of the longest extension of the device and / or component.

[0014] Similarly, the terms “transverse”, “transversal” and “transversally” refer to a direction generally perpendicular to the longitudinal direction.

[0015] Further, the terms “circumference”, “circumferential”, “circumferentially” refer to a circumference or a circumferential direction 301 relative to an axis 102, typically a central axis extending in the direction of the longest extension of the device and / or component. Similarly, “radial” or “radially” refer to a direction 302 extending radially relative to the axis, and “rotation”, “rotational” and “rotationally” refer to rotation relative to the axis.

[0016] According to one embodiment, preventing may comprise: disabling, by the processing circuitry, the input device. That is, the input device is advantageously made unable to detect, or provide, a signal indicative of the detection to the processing circuitry. In one possible implementation, an input port to the processing circuitry that receives the signal is disabled, or the output port on the input device is disabled. Each of which provide advantageous ways to prevent detecting, by the processing circuitry, that a medicament cassette is inserted in the medicament delivery device.

[0017] According to one embodiment, preventing may comprise: ignoring, by the processing circuitry, the signal indicative of that a medicament cassette is inserted in the medicament delivery device. That is, even if the signal indicative of the insertion reaches the input port of the processing circuitry, it is not acknowledged. According to one embodiment, the input device maybe a wireless communication device configured to read a tag on the medicament cassette, wherein preventing may comprise: disabling, by the processing circuitry, the wireless communication device. In other words, the wireless communication device is advantageously prevented from reading the tag, and with a reading of the tag, the processing circuitry cannot be triggered to perform an injection.

[0018] According to one embodiment, the wireless communication device may be an RFID reader.

[0019] According to one embodiment, the input device may comprise a trigger mechanism that detects that a medicament cassette is inserted in the medicament delivery device, wherein preventing comprises disabling the trigger mechanism. Thus, another advantageous way to detect that a medicament cassette is inserted maybe disabled, thereby preventing a subsequent injection until the power source is disconnected.

[0020] According to one embodiment, the trigger mechanism maybe configured to activate a wireless communication device configured to read a tag on the medicament cassette in response to detecting the medicament cassette. By disabling the trigger mechanism, the wireless communication device is advantageously not able to read the tag which maybe an electronic tag.

[0021] According to one embodiment, the trigger mechanism may comprise a switch actuated by an activation interface of the medicament delivery device that is caused to move to actuate the switch when a medicament cassette is received.

[0022] According to one embodiment, disabling the trigger mechanism may comprise disabling the respective general -purpose input / output pins of the switch on a circuit board. Advantageously, this prevents the signal indicative of medicament insertion from even reaching the circuit board. Furthermore, this is a cost-efficient way to implement the prevention. According to one embodiment, disabling the trigger mechanism may comprise assigning a different software / program path. This is yet another cost-efficient way to implement the prevention that is implemented in software.

[0023] There is further provided a processing circuitry configured to perform the steps of the method according to any one of the herein-described embodiments.

[0024] According to a second aspect of the present disclosure, there is provided a medicament delivery device comprising: a rechargeable battery, an electric motor powered by the rechargeable battery, a charging port for enabling charging of the rechargeable battery from an external power source, a processing circuitry, and an input device configured to provide a signal to the processing circuitry indicative of that a medicament cassette is inserted in the medicament delivery device, the processing circuitry being configured to: detect that an external power source is connected to the charging port, and in response, deactivate an ability to detect that a medicament cassette is inserted in the medicament delivery device.

[0025] According to one embodiment, to deactivate the ability, the processing circuitry maybe configured to: disable the input device.

[0026] According to one embodiment, to deactivate the ability, the processing circuitry maybe configured to: ignore the signal indicative of that a medicament cassette is inserted in the medicament delivery device.

[0027] According to one embodiment, the input device maybe a wireless communication device configured to read a tag on the medicament cassette, wherein to deactivate the ability, the processing circuitry may be configured to: disable the wireless communication device.

[0028] According to one embodiment, the wireless communication device may be an RFID reader. According to one embodiment, the input device may comprise a trigger mechanism that detects that a medicament cassette is inserted in the medicament delivery device, wherein to deactivate the ability, the processing circuitry may be configured to disable the trigger mechanism.

[0029] According to one embodiment, the trigger mechanism maybe configured to activate a wireless communication device configured to read a tag on the medicament cassette in response to detecting the medicament cassette.

[0030] According to one embodiment, the trigger mechanism may comprise a switch actuated by an activation interface of the medicament delivery device that is caused to move to actuate the switch when a medicament cassette is received.

[0031] According to one embodiment, to disable the trigger mechanism the processing circuitry maybe configured to disable the respective general- purpose input / output pins of the switch on a circuit board.

[0032] According to one embodiment, to disable the trigger mechanism the processing circuitry maybe configured to assign a different software / program path.

[0033] There is further provided a computer program product comprising program code for performing the method according to any one of the methods described herein, when executed by the processing circuitry. The computer program product may be implemented as firmware in the medicament delivery device.

[0034] Further effects and features of the second aspect of the present disclosure are largely analogous to those described above in connection with the first aspect of the present disclosure.

[0035] Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a / an / the member, apparatus, component, means, etc.” are to be interpreted openly as referring to at least one instance of the member, apparatus, component, means, etc., unless explicitly stated otherwise.

[0036] BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The specific embodiments of the inventive concept will now be described, by way of example, with reference to the accompanying drawings, in which:

[0038] Fig. 1 is a perspective view of a medicament delivery device according to embodiments of the present disclosure;

[0039] Figs. 2 Fig. 2 is a partly exploded view of the medicament delivery device according to embodiments of the present disclosure;

[0040] Fig. 3 schematic diagram of a medicament delivery device according to embodiments of the present disclosure;

[0041] Fig. 4 is a perspective view of the distal end of a medicament cassette 4 and the medicament delivery device according to embodiments of the present disclosure;

[0042] Fig. 5 is a perspective view of the distal end of a medicament cassette 4 and the medicament delivery device according to embodiments of the present disclosure;

[0043] Fig. 6 is a perspective view of an activation interface and a switch of the medicament delivery device according to embodiments of the present disclosure;

[0044] Fig. 7 is a perspective view of an activation interface and a switch of the medicament delivery device according to embodiments of the present disclosure; and

[0045] Fig. 8 is a flow-chart of a method according to embodiments of the present disclosure. DETAILED DESCRIPTION

[0046] The inventive concept will now be described more fully hereinafter concerning the accompanying drawings, in which exemplifying embodiments are shown. The inventive concept may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete, and will fully convey the scope of the inventive concept to those skilled in the art. Like numbers refer to like members throughout the description.

[0047] Fig i shows an example of a medicament delivery device i such as an autoinjector of an injection device, or an infusion device 100 according to embodiments of the present disclosure. The medicament delivery device i is configured to expel medicament from a medicament container via a medicament delivery member such as a needle 2, to a user at a dose delivery site. The medicament delivery device i extends from a proximal end la to a distal end ib relative to the axis 102.

[0048] The medicament delivery device 1 comprises a housing 3 and is connectable to a medicament cassette 4, e.g., a disposable cassette 4, having a proximal end 4a and a distal end 4b.

[0049] The medicament cassette 4 is connected to an infusion set 6 comprising a flexible tube 7 connected to a through hole of the medicament cassette 4 and the proximal end 4a. At the other end of the tube 7 is the needle 2 attached via a pad 8.

[0050] The medicament cassette 4 is adapted to accommodate a medicament container which can be of different volumes, for example ranging from about 1 ml to about 10 ml.

[0051] The medicament delivery device 1 comprises a receiving interface 10 configured to receive and lock the medicament cassette to the proximal end la of the medicament delivery device 1 such that the medicament cassette is immovable relative to the medicament delivery device 1 or is only movable in a predetermined way relative to the medicament delivery device.

[0052] Fig. 2 is a partly exploded view of the medicament delivery device 1 with the housing 3 removed. A set of antennas 8o of a wireless communication device such as an RFID reader are shown that are configured to capture signals from an electronic tag of a medicament container. Further, a power pack 82 with electronic circuitry and rechargeable batteries 302 are arranged at the rear end of the medicament delivery device 1.

[0053] Fig. 3 is a schematic diagram of a medicament delivery device 300. The medicament delivery device 300 comprises a rechargeable battery 303 and an electric motor 304 powered by the rechargeable battery 303. The electric motor 304 is configured to drive an injection mechanism 306, such as including a plunger rod for causing an injection.

[0054] The medicament delivery device 300 further comprises a charging port 308 for enabling charging of the rechargeable battery 303 from an external power source 312, such as an electrical outlet or portable power bank or similar.

[0055] The medicament delivery device 300 further comprises a processing circuitry 314, and an input device 316. The input device 316 is configured to provide a signal, Si, to the processing circuitry 314 indicative of that a medicament cassette is inserted in the receiving interface 10 of the medicament delivery device 300.

[0056] The processing circuitry 314 is configured to detect that an external power source 312 is connected to the charging port 308. The processing circuitry 314 may receive a signal S2, from a charging circuit 318 of the medicament delivery device, indicative of that the charging port 308 has received a power source connection. The charging circuit 318 includes the relevant circuitry, for delivering suitable electrical energy from the external power source 312 to the battery 303. In response to receiving the signal S2, the processing circuitry 314 deactivates an ability to detect that a medicament cassette is inserted in the medicament delivery device. That is, even if a medicament cassette is inserted in the receiving interface 10 of the medicament delivery device 1 the processing circuitry 314 will not take any action that causes an injection.

[0057] Deactivating the ability to detect the medicament cassette may be performed in various ways. In one embodiment, the processing circuitry 314 is configured to disable to input device 316. In such case, the input device 316 maybe an input port that receives an input signal when the medicament cassette is inserted in the receiving interface 10 of the medicament delivery device 300. When the processing circuitry 314 has received the signal S2 that a charger is plugged into the charging port 308, the input port 316 is disabled, or ignored, by the processing circuitry 314 such that the signal Si is not provided to the processing circuit 314.

[0058] In another embodiment, the input port 316 maybe enabled, but the processing circuitry 314 is configured to anyway ignore the signal Si indicative of that a medicament cassette is inserted in the medicament delivery device 300 receiving interface 10. For example, ignoring the signal Si maybe performed in software by for example assigning a different software path of the input signal Si if the signal S2 is received or maintained.

[0059] In some embodiments, the input device 316 is a wireless communication device comprising the antennas 80, see e.g., fig. 2, configured to read an electronic tag 25 on the medicament cassette. In response to receiving the signal S2 indicating that a power source is connected to the charging port 308, the processing circuitry disables the wireless communication device so that it cannot read the tag 25. The wireless communication device is preferably an RFID reader.

[0060] As will be described in more detail below, in some embodiments, the input device 316 comprises a trigger mechanism that detects that a medicament cassette is inserted in the medicament delivery device 1, more precisely in the receiving interface io.

[0061] The processing circuitry 314 is configured to disable the trigger mechanism of the input device 316. The trigger mechanism 316 is preferably configured to activate a wireless communication device comprising the antennas 80 configured to read the tag 25 on the medicament cassette. The trigger mechanism comprising a switch, e.g., a mechanical contact switch or a noncontact switch such as a reed switch / optical switch, actuated by an activation interface of the medicament delivery device that is caused to move to actuate the switch when a medicament cassette is received. This embodiment will now be described in more detail with reference to subsequent drawings.

[0062] Fig. 4 is a close-up view of the distal end 4b of the medicament cassette 4 in Fig. 2 and the receiving interface 10 before the medicament cassette 4 is inserted in the receiving interface 10 of the medicament delivery device 1. The antennas 80 of the wireless communication device is circumferentially arranged around the receiving interface 10. In Fig. 5, the receiving interface 10 is removed so that an activation interface 40 is better seen. The activation interface comprises a second arm 54 that extends distally towards a second switch 92. On the opposite side shown in Fig. 6, the activation interface 40 comprises first arm 44 that extends distally towards a first switch 90.

[0063] Turning to Fig. 7, when a medicament cassette 4 is inserted and mounted in the receiving interface 10, the actuating interface 40 is caused to move distally so that the arm 44 activates the switch 90. Activation of the first switch 90 causes activation of the wireless communication device of the power pack 82 comprising the antennas 80 to read the electronic tag 25 on the cassette 4. However, if the processing circuitry of the medicament delivery device 1 receives the signal S2 that the power source is connected to the charge port 308 (see Fig. 3), the wireless communication device with the antennas 80 is disabled, or the switch 90 maybe disabled. For example, the processing circuitry maybe configured to disable the respective general- purpose input / output pins of the switch 90 on a circuit board 85 supporting the switch and the processing circuitry 314.

[0064] In use, when the processing circuitry 314 is again allowed to detect the medicament delivery device, and the activation interface is moved further in the distal direction by further engagement with the medicament cassette or with a needle cover, the second arm 54 with the cut-out 55 reaches the second switch 92, which activates the electric motor to cause an injection.

[0065] Fig. 8 is a flowchart of method steps according to an embodiment of the present disclosure. The method is for controlling a medicament delivery device configured to receive a medicament cassette as described above.

[0066] The method comprises, in step S102, detecting, by the processing circuitry, that an external power source is connected to the charging port.

[0067] In step S104, in response to detecting the connected power source, preventing the processing circuitry from detecting that a medicament cassette is inserted in the medicament delivery device.

[0068] As discussed above, preventing, S104 may comprise disabling, by the processing circuitry, and the input device. In other embodiments, preventing S014 comprises ignoring, by the processing circuitry, the signal indicative of that a medicament cassette is inserted in the medicament delivery device.

[0069] In embodiments where the input device is a wireless communication device configured to read a tag on the medicament cassette, preventing S104 may comprise disabling, by the processing circuitry, the wireless communication device.

[0070] In embodiments where the input device comprises a trigger mechanism that detects that a medicament cassette is inserted in the medicament delivery device, preventing S104 comprises disabling the trigger mechanism. For example, the trigger mechanism may be configured to activate a wireless communication device configured to read a tag on the medicament cassette in response to detecting the medicament cassette. The trigger mechanism may comprise a switch actuated by an activation interface of the medicament delivery device that is caused to move to actuate the switch when a medicament cassette is received.

[0071] Disabling the trigger mechanism may comprise disabling the respective general -purpose input / output pins of the switch on a circuit board. In other embodiments, disabling the trigger mechanism comprises assigning a different software / program path.

[0072] The methods described herein may be implemented in the firmware of the medicament delivery device i. Thus, terms such as disable, ignore, different software / program path, and general purpose input / output pin maybe interpreted according to their meaning in that technical field.

[0073] Embodiments of the present disclosure may be applied to various medicament delivery devices. In one possible implementation, the medicament delivery maybe an autoinjector.

[0074] A medicament delivery device (such as an autoinjector) may generally include various other components. For example, a sensor unit which may recognize medicament delivery events, such as the needle inserted into an attachment portion of e.g., a pad, injection started, and medicament delivery operation ends, a memory unit which is configured to store the recorded data during the medicament delivery operation, a connectivity unit configured to transmit the stored data to a smart device or the network directly, a processing unit configured to control the entire system and processes the data before transmitting it, and / or user interface units that are configured to provide feedback to the patient, such as status LEDs, haptic, and / or audio feedback.

[0075] When the medicament delivery device is placed into the attachment portion, the sensors inside of the pad are configured to recognize the event and give feedback to the patient via haptic / visual or audio elements. When the medicament delivery finishes, the sensors are configured to recognize the event and give feedback to the patient again. Further, the collected data is stored in the memory unit and may be transmitted to the smart device / network via the connectivity unit after the medicament delivery event finishes.

[0076] The sensor can be one of or the combination of the following: a mechanical switch, a Hall-effect sensor, and an accelerometer.

[0077] The mechanical switch, hall-effect sensor, or accelerometer can be used for the detection of the insertion of a needle into an injection port.

[0078] The accelerometer can be used for detecting medicament delivery events.

[0079] Possible wireless communication methods include Bluetooth and Cellular Networks.

[0080] Bluetooth connectivity requires a smart device to transmit the stored data to the network and it requires a pairing action between the pad and the smart device before being able to use the supporting pad in case of a 2-way connection. But it’s a cheaper alternative and it requires less space on PCB. A i-way connection does not require pairing.

[0081] The cellular network does not require any pairing process, it can be used as a plug-and-play device, no prior setup is needed, but it's more expensive and it requires more space on PCB.

[0082] Depending on the requirements of the product any of those two technologies can be used.

[0083] Such processing units or processing circuitry may comprise a logic circuit or control unit including a microprocessor, microcontroller, programmable digital signal processor or another programmable device. The processing circuitry may also, or instead, each include an application-specific integrated circuit, a programmable gate array or programmable array logic, a programmable logic device, or a digital signal processor. Where the processing circuitry includes a programmable device such as the microprocessor, microcontroller or programmable digital signal processor mentioned above, the processor may further include computer executable code that controls the operation of the programmable device.

[0084] The medicament delivery devices described herein can be used for the treatment and / or prophylaxis of one or more of many different types of disorders. Exemplary disorders include, but are not limited to: rheumatoid arthritis, inflammatory bowel diseases (e.g. Crohn’s disease and ulcerative colitis), hypercholesterolaemia, diabetes (e.g. type 2 diabetes), psoriasis, migraines, multiple sclerosis, anaemia, lupus, atopic dermatitis, asthma, nasal polyps, acute hypoglycaemia, obesity, anaphylaxis and allergies. Exemplary types of drugs that could be included in the medicament delivery devices described herein include, but are not limited to, antibodies, proteins, fusion proteins, peptibodies, polypeptides, pegylated proteins, protein fragments, protein analogues, protein variants, protein precursors, and / or protein derivatives. Exemplary drugs that could be included in the medicament delivery devices described herein include, but are not limited to (with non-limiting examples of relevant disorders in brackets): etanercept (rheumatoid arthritis, inflammatory bowel diseases (e.g. Crohn’s disease and ulcerative colitis)), evolocumab (hypercholesterolaemia), exenatide (type 2 diabetes), secukinumab (psoriasis), erenumab (migraines), alirocumab (rheumatoid arthritis), methotrexate (amethopterin) (rheumatoid arthritis), tocilizumab (rheumatoid arthritis), interferon beta-ia (multiple sclerosis), sumatriptan (migraines), adalimumab (rheumatoid arthritis), darbepoetin alfa (anaemia), belimumab (lupus), peginterferon beta-ia' (multiple sclerosis), sarilumab (rheumatoid arthritis), semaglutide (type 2 diabetes, obesity), dupilumab (atopic dermatitis, asthma, nasal polyps, allergies), glucagon (acute hypoglycaemia), epinephrine (anaphylaxis), insulin (diabetes), atropine and vedolizumab (inflammatory bowel diseases (e.g. Crohn’s disease and ulcerative colitis)). Pharmaceutical formulations including, but not limited to, any drug described herein are also contemplated for use in the medicament delivery devices described herein, for example pharmaceutical formulations comprising a drug as listed herein (or a pharmaceutically acceptable salt of the drug) and a pharmaceutically acceptable carrier. Pharmaceutical formulations comprising a drug as listed herein (or a pharmaceutically acceptable salt of the drug) may include one or more other active ingredients, or may be the only active ingredient present.

[0085] The inventive concept has mainly been described above with reference to a few examples. However, as is readily appreciated by a person skilled in the art, other embodiments than the ones disclosed above are equally possible within the scope of the inventive concept, as defined by the appended claims. In particular, whilst various distinct embodiments have been described with reference to the drawings, it will be appreciated that components of these distinct embodiments maybe interchanged to provide further embodiments.

[0086] Some other aspects of the invention are defined by the following clauses.

[0087] 1. A method for controlling a medicament delivery device (1) configured to receive a medicament cassette (3), the medicament delivery device (1) comprising a rechargeable battery (303), an electric motor (304) powered by the rechargeable battery (303), a charging port (308) for enabling charging of the rechargeable battery (303) from an external power source (312), a processing circuitry (314), and an input device (316) configured to provide a signal (Si) to the processing circuitry (314) indicative of that a medicament cassette (4) is inserted in the medicament delivery device (1), the method comprising: detecting (S102), by the processing circuitry (314), that an external power source (312) is connected to the charging port (308), and in response, preventing (S104) the processing circuitry (314) from detecting that a medicament cassette (4) is inserted in the medicament delivery device (1).

[0088] 2. The method of clause 1, wherein preventing comprises: disabling, by the processing circuitry (314), the input device. 3. The method of clause 1, wherein preventing comprises: ignoring, by the processing circuitry (314), the signal indicative of that a medicament cassette is inserted in the medicament delivery device.

[0089] 4. The method of any one of the preceding clauses, the input device (316) being a wireless communication device (80) configured to read a tag (25) on the medicament cassette (1), wherein preventing comprises: disabling, by the processing circuitry (314), the wireless communication device (80).

[0090] 5. The method of clause 4, the wireless communication device is an RFID reader.

[0091] 6. The method of any one of clauses 1 to 3, wherein the input device comprises a trigger mechanism (40, 90) that detects that a medicament cassette is inserted in the medicament delivery device, wherein preventing comprises disabling the trigger mechanism.

[0092] 7. The method of clause 6, the trigger mechanism (40, 90) being configured to activate a wireless communication device configured to read a tag on the medicament cassette in response to detecting the medicament cassette.

[0093] 8. The method of any one of clauses 6 and 7, the trigger mechanism comprising a switch (90) actuated by an activation interface (40) of the medicament delivery device that is caused to move to actuate the switch (90) when a medicament cassette is received.

[0094] 9. The method of any one of clauses 6 to 8, wherein disabling the trigger mechanism comprises disabling the respective general -purpose input / output pins of the switch on a circuit board (85).

[0095] 10. The method of any one of clauses 4 to 6, wherein disabling the trigger mechanism (40, 90) comprises assigning a different software / program path. io. A processing circuitry (314) configured to perform the steps of the method according to any one of the preceding clauses.

[0096] 11. A medicament delivery device (1) comprising: a rechargeable battery (303), an electric motor (304) powered by the rechargeable battery, a charging port (308) for enabling charging of the rechargeable battery from an external power source, a processing circuitry (314), and an input device (316) configured to provide a signal (Si) to the processing circuitry (314) indicative of that a medicament cassette is inserted in the medicament delivery device, the processing circuitry (314) being configured to: detect that an external power source is connected to the charging port (308), and in response, deactivate an ability to detect that a medicament cassette is inserted in the medicament delivery device.

[0097] 12. The medicament delivery device of clause 11, wherein to deactivate the ability, the processing circuitry (314) is configured to: disable the input device (316).

[0098] 13. The medicament delivery device of clause 11, wherein to deactivate the ability, the processing circuitry (314) is configured to: ignore the signal indicative of that a medicament cassette (4) is inserted in the medicament delivery device (1). 14- The medicament delivery device of any one of clauses n to 13, the input device (316) being a wireless communication device configured to read a tag (25) on the medicament cassette (4), wherein to deactivate the ability, the processing circuitry (314) is configured to: disable the wireless communication device (80).

[0099] 15. The medicament delivery device of clause 14, the wireless communication device being an RFID reader.

[0100] 16. The medicament delivery device of any one of clauses 11 to 13, wherein the input device (316) comprises a trigger mechanism that detects that a medicament cassette (4) is inserted in the medicament delivery device, wherein to deactivate the ability, the processing circuitry (314) is configured to disable the trigger mechanism.

[0101] 17. The medicament delivery device of clause 16, the trigger mechanism being configured to activate a wireless communication device configured to read a tag on the medicament cassette in response to detecting the medicament cassette.

[0102] 18. The medicament delivery device of any one of clauses 16 and 17, the trigger mechanism comprising a switch (90) actuated by an activation interface (40) of the medicament delivery device that is caused to move to actuate the switch when a medicament cassette is received.

[0103] 19. The medicament delivery device of any one of clauses 17 and 18, wherein to disable the trigger mechanism (40, 90) the processing circuitry (314) is configured to disable the respective general-purpose input / output pins of the switch (90) on a circuit board (85).

[0104] 20. The medicament delivery device of any one of clauses 16 and 19, wherein to disable the trigger mechanism the processing circuitry (314) is configured to assign a different software / program path. 21. A computer program product comprising program code for performing the method according to any one of clauses 11-19, when executed by the processing circuitry.

Claims

CLAIMS1. A method for controlling a medicament delivery device (1) configured to receive a medicament cassette (3), the medicament delivery device (1) comprising a rechargeable battery (303), an electric motor (304) powered by the rechargeable battery (303), a charging port (308) for enabling charging of the rechargeable battery (303) from an external power source (312), a processing circuitry (314), and an input device (316) configured to provide a signal (Si) to the processing circuitry (314) indicative of that a medicament cassette (4) is inserted in the medicament delivery device (1), the method comprising: detecting (S102), by the processing circuitry (314), that an external power source (312) is connected to the charging port (308), and in response, preventing (S104) the processing circuitry (314) from detecting that a medicament cassette (4) is inserted in the medicament delivery device (1).

2. The method of claim 1, wherein preventing comprises: disabling, by the processing circuitry (314), the input device.

3. The method of claim 1, wherein preventing comprises: ignoring, by the processing circuitry (314), the signal indicative of that a medicament cassette is inserted in the medicament delivery device.

4. The method of any one of the preceding claims, the input device (316) being a wireless communication device (80) configured to read a tag (25) on the medicament cassette (1), wherein preventing comprises: disabling, by the processing circuitry (314), the wireless communication device (80).

5. The method of claim 4, the wireless communication device being an RFID reader.

6. The method of any one of claims 1 to 3, wherein the input device comprises a trigger mechanism (40, 90) that detects that a medicament cassette is inserted in the medicament delivery device, wherein preventing comprises disabling the trigger mechanism.

7. The method of claim 6, the trigger mechanism (40, 90) being configured to activate a wireless communication device configured to read a tag on the medicament cassette in response to detecting the medicament cassette.

8. The method of any one of claims 6 and 7, the trigger mechanism comprising a switch (90) actuated by an activation interface (40) of the medicament delivery device that is caused to move to actuate the switch (90) when a medicament cassette is received.

9. The method of any one of claims 6 to 8, wherein disabling the trigger mechanism comprises disabling the respective general -purpose input / output pins of the switch on a circuit board (85).

10. The method of any one of claims 4 to 6, wherein disabling the trigger mechanism (40, 90) comprises assigning a different software / program path.

11. A processing circuitry (314) configured to perform the steps of the method according to any one of the preceding claims.

12. A medicament delivery device (1) comprising: a rechargeable battery (303), an electric motor (304) powered by the rechargeable battery, a charging port (308) for enabling charging of the rechargeable battery from an external power source, a processing circuitry (314), andan input device (316) configured to provide a signal (Si) to the processing circuitry (314) indicative of that a medicament cassette is inserted in the medicament delivery device, the processing circuitry (314) being configured to: detect that an external power source is connected to the charging port (308), and in response, deactivate an ability to detect that a medicament cassette is inserted in the medicament delivery device.

13. The medicament delivery device of claim 12, wherein to deactivate the ability, the processing circuitry (314) is configured to: disable the input device (316).

14. The medicament delivery device of claim 11, wherein to deactivate the ability, the processing circuitry (314) is configured to: ignore the signal indicative of that a medicament cassette (4) is inserted in the medicament delivery device (1).

15. The medicament delivery device of any one of claims 12 to 14, the input device (316) being a wireless communication device configured to read a tag (25) on the medicament cassette (4), wherein to deactivate the ability, the processing circuitry (314) is configured to: disable the wireless communication device (80).

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