Injection amount measurement and management system for mounting on dose-setting knob of pen-type injection device

Abstract

The present invention relates to an injection amount measurement and management system for mounting on a pen-type injection device (1) having an injection button that does not rotate during injection, in order to measure the injection amount of a drug, and relates to an injection amount measurement and management system (100) for mounting on the dose-setting knob of a pen-type injection device, the system comprising: a main body (110) in which a main body IMU sensor (112) is installed; an injection button interlocking part (120) which is mounted so as to be interlocked with the rotational operation of an injection button (11) of the pen-type injection device (1) and has an injection button IMU sensor (121) installed therein; a main control unit (130); and an input / output interface (140), wherein the main control unit (130) calculates a relative angle change value (RA) between a measurement value of the main body IMU sensor (112) and a measurement value of the injection button IMU sensor (121), acquires a drug dose calculation value using the relative angle change value (RA) until injection is completed when the relative angle change value (RA) occurs in a return rotation direction, and then manages and displays the drug dose calculation value as injection history information.

Description

Dosage measurement and management system equipped with a dose setting knob for a pen-type syringe

[0001] The present invention relates to a system for measuring and managing the amount of drug injected by being mounted on a pen-type injection device (1) having a non-rotating injection button during injection, the system comprising: a main body (110) detachably mounted on a dosage setting knob (12) of the pen-type injection device (1) and having a main body IMU sensor (112) installed therein; an injection button linkage unit (120) configured to be rotatable around a central axis (CA) of the main body (110) as a rotational axis and mounted to be linked to the rotational operation of the injection button (11) of the pen-type injection device (1), and having an injection button IMU sensor (121) installed therein; a main control unit (130) connected to the main body IMU (112) sensor and the injection button IMU sensor (121); and an input / output interface (140) connected to the main control unit (130) and receiving an operation required for operation and displaying an operation status;

[0002] The above main control unit (130) calculates a relative angle change value (RA) between the measurement value of the main body IMU sensor (112) and the measurement value of the injection button IMU sensor (121), and then, when the relative angle change value (RA) occurs in the return rotation direction, obtains a drug dosage calculation value through the relative angle change value (RA) until the injection is completed, and then manages and displays the drug dosage calculation value as injection history information, and relates to a dose setting knob-mounted injection amount measurement and management system (100) of a pen-type injection device.

[0003] Diabetes is a disease that occurs when the body fails to produce enough insulin or utilizes it properly, preventing it from converting blood sugar (i.e., glucose) into energy. For these patients, it's crucial to inject the correct amount of insulin at the correct time. This is especially important because even if a blockage occurs during the insulin injection, the injection must still be administered at the correct time. Therefore, this approach is considered more important than simply injecting the correct amount.

[0004] Accordingly, diabetic patients utilize disposable portable injection devices (e.g., Sanofi's Solostar(R) insulin injection pen) as shown in FIG. 1 so that they can receive insulin injections as a treatment at any time during their daily lives, or reusable portable injection devices (e.g., Novo Nordisk's Flexpen® insulin injection pen) that can be used by exchanging cartridges. Accordingly, the injection device includes a cartridge loading portion into which a cartridge filled with insulin is mounted, and a pusher that pushes the cartridge to discharge insulin through a discharge portion and injects it into the patient.

[0005] These portable injection devices, commonly referred to as "insulin pens," offer advantages over insulin syringes, such as being easier and more convenient to use on the go, and enabling precise dosing with a simple dial operation. Numerous patent documents have been published regarding these insulin pens, including "Pen-Type Drug Injection Device with Dose Setting and Resetting Mechanism (Korean Patent Publication No. 10-2016-0049538)."

[0006] However, regardless of whether disposable or reusable, these manual portable injectors simply function as a set dosage and injector, making it fundamentally impossible to systematically accumulate and manage the history of dosage and administration time. Furthermore, they vary greatly in specifications, size, and shape across manufacturers and models.

[0007] Such a manual portable injection device typically has a characteristic in which, when the dose setting knob (12) is rotated during the process of setting the injection amount, as shown in Fig. 1, the dose setting knob (12) and the injection button (11) protrude or are retracted accordingly. Meanwhile, during the injection process, when the injection button (11) is pressed, the protruding dose setting knob (12) rotates and is retracted again, which has an operating characteristic (hereinafter, a case having such an operating characteristic is referred to as a 'protruding type').

[0008] Meanwhile, even when the dose setting knob (12) for setting the injection amount is rotated as shown in Fig. 2, there is also a so-called "non-protruding" type in which the injection button (11) does not protrude or retract accordingly, so that the overall length remains constant during use (hereinafter, a case having such operating characteristics is referred to as a "non-protruding type").

[0009] In this way, manual portable injection devices have various operating characteristics depending on the manufacturer, etc. Among them, there are many cases in which, due to internal mechanical characteristics, i) during the dosage setting process, the dosage setting knob (12) and the injection button (11) rotate together as one body around the central axis (CA) as the rotation axis, but ii) during the injection process, the injection button (11) does not rotate and only the dosage setting knob (12) rotates to return to its original position. In other words, the injection button has the characteristic of rotating only when setting the dosage and not rotating during the injection process. (Hereinafter, a case with such operating characteristics is referred to as a 'non-rotating injection button type during injection'.)

[0010] Meanwhile, regarding a conventional dosage measurement and management system that is mounted on an injection device such as this and measures and manages the dosage, such as "MEDICAL MODULE FOR DRUG DELIVERY PEN (U.S. Patent No. 8,556,865), "a medical module, comprising: a first module housing extending along a first longitudinal axis from a first module housing end to a second module end; a second module housing coupled to the first module, wherein the second module extends along the second axis to define at least a portion of a hollow bore, and at least a portion of the hollow bore is configured to be attached over an operating unit of the drug delivery pen; a dosage sensor coupled to the first module housing; a follower connected to the dosage sensor and arranged to move relative to the first module housing; and support forks coupled to the follower and configured to capture an operating button of the drug delivery pen therebetween. A medical module is disclosed, characterized in that it comprises: a power source coupled to the primary module housing and separated from the dosage sensor; and a microcontroller disposed adjacent to the primary module housing and electrically coupled to both the dosage sensor and the power source.

[0011] However, in the case of these existing inventions, after attaching a complex configuration of a housing to the main body of a pen-type injection device, a complex structure, such as a support fork, must be mounted on the operation button (dose setting knob) so that the driven part can operate in conjunction with the axial movement of the operation button of the drug delivery pen, which has the problem of being complicated in configuration and inconvenient to use. In particular, these existing inventions can only be used in the case of the so-called "protruding" injection device mentioned above, so their functions are extremely limited. In addition, in the case of various types of injection devices, the cross-sectional shape is extremely diverse, such as circular, rounded polygonal, or asymmetrical, and the length of the operating part and the position / diameter / thickness of the dosage setting knob are all different, so they can only be manufactured to be applied to one type of injection device, and there was a problem that general use was completely impossible. In addition, there was a problem of low measurement precision because only the axial movement of the dosage setting knob could be detected.

[0012] The present invention solves the problems of the above-mentioned existing inventions and, by making the most of the operating characteristics of a pen-type injection device with a non-rotating injection button during injection, detects the rotation of the dosage setting knob and the injection button through an IMU sensor by simply mounting it only on the part including the dosage setting knob, and then measures the dosage setting value using the relative angle change value (RA) by utilizing the operating characteristics of a pen-type injection device with a non-rotating injection button during injection, thereby accurately measuring the dosage setting value without being affected at all by the movement or rotation / shaking of the pen-type injection device itself during the dosage setting process, and thereby provides a pen-type injection device with a dosage setting knob-mounted injection amount measurement and management system that can accurately measure the injected amount of the drug and systematically manage the injection history such as the dosage and injection time of the drug.

[0013] In order to achieve the above-mentioned task, the present invention provides a pen-type injection device dosage setting knob-mounted injection amount measuring and management system (100), which is mounted on a non-rotating injection button pen-type injection device (1) during injection and measures the injection amount of a drug, comprising: a main body (110) that is detachably mounted on the dosage setting knob (12) of the pen-type injection device (1) and has a main body IMU sensor (112) installed therein; an injection button linkage unit (120) that is configured to be rotatable around a central axis (CA) of the main body (110) as a rotational axis and is mounted to be linked to the rotational operation of the injection button (11) of the pen-type injection device (1) and has an injection button IMU sensor (121) installed therein; a main control unit (130) that is connected to the main body IMU (112) sensor and the injection button IMU sensor (121); and a main control unit (130). It is characterized by comprising an input / output interface (140) that is connected and receives operations required for operation and displays the operation status;

[0014] The above main control unit (130) is characterized in that it calculates a relative angle change value (RA) between the measurement value of the main body IMU sensor (112) and the measurement value of the injection button IMU sensor (121), and then, when the relative angle change value (RA) occurs in the return rotation direction, it obtains a drug dosage calculation value through the relative angle change value (RA) until the completion of injection, and then manages and displays the drug dosage calculation value as injection history information.

[0015] In addition, the main control unit (130) is characterized in that it determines that the injection is completed when the rate of change of the relative angle change value (RA) is greater than a predetermined rate and then becomes 0, and calculates the relative angle change value (RA) up to the injection completion state as the drug dosage calculation value.

[0016] Meanwhile, it is configured to further include an injection detection sensor (122) installed in the injection button linkage (120), and the main control unit (130) is characterized in that it determines whether the injection is completed based on detection by the injection detection sensor (122), and calculates the relative angle change value (RA) up to the injection completion state as the drug dosage calculation value.

[0017] In addition, the main body (110) is configured to further include an elasticity providing means (115), and the injection button linkage (120) is configured to rotate in conjunction with the main body (110) by the elasticity providing means (115) and the rotation locking means (125), but is configured so that the rotation locking means (125) is released during the injection process so as not to be affected by the rotation of the main body (110), and between the main body (110) and the injection button linkage (120), a signal connection unit (160) is further installed to connect a signal between at least one of the main body IMU sensor (112) and the injection button IMU sensor (121) and the main control unit (130) by at least one of wired or wireless methods.

[0018] In addition, it further comprises a wireless communication unit (150) connected to the main control unit (130); and the wireless communication unit (150) is characterized in that it can be connected to at least one of a user terminal (200), a medical institution server (300), and a guardian terminal (400) through a communication network (N) to share and transmit the injection history information of the main control unit (130).

[0019] In the case of the present invention, by making the most of the operating characteristics of the non-rotating pen-type injection device with an injection button during injection, it is possible to detect the rotation of the dosage setting knob and the injection button through the IMU sensor by simply mounting it only on the part including the dosage setting knob, and then measure the dosage setting value using the relative angle change value (RA) by utilizing the operating characteristics of the non-rotating pen-type injection device with an injection button during injection, which has the advantage of being mechanically combined into one and having a small size, so that it is easy to use, store, and move.

[0020] In addition, there is an advantage in that the dosage setting value can be precisely measured without being affected by the movement, rotation, or shaking of the pen-type injection device itself during the dosage setting process, and through this, the amount of drug administered can be accurately measured, and the administration history such as the amount of drug administered and the time of administration can be systematically managed.

[0021] Figure 1: A drawing showing the general configuration of a protruding pen-type injection device.

[0022] Figure 2: A drawing showing the general configuration of a non-protruding pen-type injection device.

[0023] Figure 3: An external view of a dose setting knob-mounted injection amount measuring and management system of a pen-type injection device according to one embodiment of the present invention.

[0024] Figure 4: Block diagram of a configuration of a dose measurement and management system equipped with a dose setting knob of a pen-type injection device according to one embodiment of the present invention.

[0025] Figure 5: A diagram illustrating the concept of a dose detection operation of a dose setting knob-mounted injection amount measuring and management system of a pen-type injection device according to one embodiment of the present invention.

[0026] Figure 6: A drawing showing the structure of a dose setting knob-mounted injection amount measuring and management system of a pen-type injection device according to another embodiment of the present invention.

[0027] Figure 7: A drawing showing the injection operation of a dose setting knob-mounted injection amount measuring and management system of a pen-type injection device according to another embodiment of the present invention.

[0028]

[0029] *Explanation of symbols used in the drawing*

[0030] 1: Pen-type injection device

[0031] 10: Injector housing

[0032] 11: Injection button 12: Dose setting knob

[0033] 13: Display 14: Insulin container

[0034] 15: Syringe needle 16: Inner needle cap

[0035] 17: External syringe needle cap 18: Cap

[0036] CA: Central Axis

[0037]

[0038] 100: Dosage setting knob-equipped injection volume measurement and management system for pen-type syringes

[0039] 110: Body

[0040] 112: Main body IMU sensor 115: Elasticity providing means

[0041] 120: Injection button mounting part

[0042] 121: Injection Button IMU Sensor

[0043] 122: Injection detection sensor 125: Rotation lock means

[0044] 130: Subject section

[0045] 140: Input / output interface

[0046] 140a: Display 140b: Operation input section

[0047] 140c: Sound output means

[0048] 150: Wireless Communications Department

[0049] 160: Signal connector

[0050] 200: User terminal 300: Medical institution server

[0051] 400: Guardian Terminal

[0052] Hereinafter, with reference to the attached drawings, a dosage setting knob-mounted injection dose measurement and management system for a pen-type injection device according to an embodiment of the present invention will be described in detail. First, it should be noted that, in the drawings, identical components or parts are indicated by identical reference numerals whenever possible. In describing the present invention, specific descriptions of related known functions or structures are omitted to avoid obscuring the gist of the present invention.

[0053] First, a description will be given of a pen-type injection device (1) equipped with a dose setting knob-mounted injection amount measuring and management system according to one embodiment of the present invention, which is a non-rotating injection button during injection.

[0054] As described above, the non-rotating pen-type injection device (1) for injection has internal mechanical characteristics,

[0055] a) In the dosage setting process, the dosage setting knob (12) and the injection button (11) rotate together as one with the central axis (CA) as the rotation axis.

[0056] b) During the injection process, the injection button (11) has an operating characteristic that does not rotate and only the dose setting knob (12) rotates to return to its original position.

[0057] Meanwhile, as long as it has these operating characteristics, it is possible to apply the dose setting knob-mounted injection amount measuring and management system of the pen-type injection device according to one embodiment of the present invention without any problem as to whether it is a 'protruding' or 'non-protruding' type as described above.

[0058] Hereinafter, a dosage setting knob-mounted injection amount measuring and management system of a pen-type injection device according to one embodiment of the present invention is described in detail.

[0059] A dose setting knob-mounted injection amount measuring and management system of a pen-type injection device according to one embodiment of the present invention is characterized by including a main body (110), a dose setting knob mounting part (120), and a main control part (130), as shown in FIG. 2 or FIG. 3.

[0060] First, the main body (110) will be described. As shown in Fig. 3, the main body (110) is configured to be detachably mounted on the dose setting knob (12) of the pen-type injection device (1). That is, when mounted, it operates in conjunction with the rotational operation of the dose setting knob (12).

[0061] As shown in Fig. 4, the main body (110) is equipped with a main body IMU sensor (112). This IMU (Inertial Measurement Unit) sensor is an 'inertial measurement device' and is typically configured to measure position information and direction information (angle information) within a three-dimensional space, and furthermore, to be able to measure even the direction of geomagnetism within a three-dimensional space. The main body IMU sensor (112) measures position information and direction information (angle information) within a three-dimensional space of the main body (110) in conjunction with the rotation operation of the dose setting knob (12). Therefore, as a result, the main body IMU sensor (112) measures position information and direction information (angle information) within a three-dimensional space of the dose setting knob (12).

[0062] Next, the injection button linkage (120) will be described. The injection button linkage (120) is configured to rotate around the central axis (CA) as shown in FIG. 1 on the main body (110), and is mounted to be linked to the rotational operation of the injection button (11) of the pen-type injection device (1), and is configured to have an injection button IMU sensor (121) installed as shown in FIG. 4. Meanwhile, as an embodiment of implementing the main body (110) and the injection button linkage (120) to have such a function, a configuration as shown in FIG. 3 and a configuration as shown in FIG. 6 are possible, and the present invention is not limited to the embodiment shown in the drawing, and a wide variety of other embodiments having the above-described functions and characteristics are possible.

[0063] The above-mentioned injection button IMU sensor (121) measures position information and direction information (angle information) of the injection button linkage (120) in three-dimensional space in conjunction with the rotation operation of the injection button (11), and as a result, measures position information and direction information (angle information) of the injection button (11) in three-dimensional space.

[0064] Next, the subject control section (130) will be described.

[0065] The above main control unit (130) is configured to be connected to the main body IMU (112) sensor and the injection button IMU sensor (121), as shown in FIG. 4, and calculates a relative angle change value (RA) between the measurement value of the main body IMU sensor (112) and the measurement value of the injection button IMU sensor (121) to obtain a drug dosage calculation value, and then manages the drug dosage calculation value as injection history information.

[0066] This will be described in more detail with reference to Fig. 5 as follows. Here, Fig. 5 shows the state of the dose setting knob (12) and the injection button (11) as viewed from the direction of the central axis (CA).

[0067] First, in the initial state before the dosage setting, as shown in (a) in Fig. 5, the rotational positions of the dosage setting knob (12) and the injection button (11), which are measured through the main body IMU (112) sensor and the injection button IMU sensor (121), respectively, are expressed by a dotted arrow (rotational position of the dosage setting knob (12)) and a solid arrow (rotational position of the injection button (11)).

[0068] Next, in the dosage setting process, the injection button-free pen-type injection device (1) rotates together with the dosage setting knob (12) and the injection button (11) as shown in (b) of FIG. 5. Accordingly, the rotational positions of the dosage setting knob (12) and the injection button (11) also change together. That is, the relative angle between the rotational positions of the dosage setting knob (12) and the injection button (11) maintains a constant value, so the relative angle change value (RA) becomes "0". Meanwhile, this characteristic of the relative angle between the dosage setting knob (12) and the injection button (11) maintaining a constant value is maintained in both the operation of increasing and decreasing the dosage setting.

[0069] When the dosage setting process is completed and the injection process is in progress, the injection button non-rotating pen-type injection device (1) rotates the dosage setting knob (12) in the direction in which the dosage setting amount returns to "0" (hereinafter, defined as the "return rotation direction") as shown in (c) of FIG. 5, but the injection button (11) does not rotate. Therefore, the relative angle between the dosage setting knob (12) and the injection button (11) changes, generating a relative angle change value (RA). This relative angle change value (RA) continues to increase from the point in time when the dosage setting is completed and the injection begins until the injection is completed, and the final relative angle change value (RA) is directly proportional to the set and injected drug dosage.

[0070] In this case, the relative angle change value (RA) calculated through the main body IMU (112) sensor and the injection button IMU sensor (121) can be calculated using Euler angles or quaternions. Since the method of calculating the change value of direction / angle in space using this calculation method is a widely used method, a detailed description thereof will be omitted.

[0071] Accordingly, the main control unit (130) calculates a relative angle change value (RA) between the measurement value of the main body IMU sensor (112) and the measurement value of the injection button IMU sensor (121), and when the relative angle change value (RA) occurs in the return rotation direction, it is possible to obtain a drug dosage calculation value through the relative angle change value (RA) until the completion of injection.

[0072] Meanwhile, according to the characteristic that the injection button linkage (120) is configured to be rotatable about the central axis (CA) of the main body (110) as the rotation axis, the measured values ​​of the main body IMU sensor (112) and the injection button IMU sensor (121) have similar characteristics in that they always rotate only on a plane that has the central axis (CA) as the rotation axis. That is, when the positions and directions of the main body IMU sensor (112) and the injection button IMU sensor (121) are projected onto a reference plane that has the central axis (CA) as the rotation axis, the relative angle change value (RA) can be easily calculated.

[0073] In addition, due to the characteristic that the drug dosage can be calculated using only the relative angle change value (RA), movement or tilting during dosage setting does not affect the calculated relative angle change value that is compensated for as above. Therefore, it is possible to precisely calculate and measure the dosage setting value without being affected at all by movement / rotation / shaking of the pen-type injection device itself due to the user's hand tremors or inexperience during the dosage setting process.

[0074] Meanwhile, in order to more accurately perform the process of calculating the dosage setting value, it is desirable to detect not only the 'start' of the injection but also the 'end' of the injection (i.e., 'injection completion').

[0075] The injection button-type non-rotating pen-type injection device (1) to which the present invention is applied has a characteristic in which the relative angle change value (RA) begins to change when injection begins, the relative angle change value (RA) continues to increase during the injection process, and when injection is completed, the relative angle change value (RA) no longer changes.

[0076] Using these characteristics, it is preferable that the main control unit (130) determines that the injection is completed when the rate of change of the relative angle change value (RA) is greater than a predetermined rate (i.e., the injection start-injection process is in progress) and then becomes 0 (i.e., the injection is completed), and calculates the relative angle change value (RA) up to the injection completion state as the drug dosage calculation value.

[0077] Meanwhile, as another embodiment for determining the completion of injection, the dose setting knob-mounted injection amount measuring and management system (100) of the pen-type injection device of the present invention is configured to further include an injection detection sensor (122) installed in the injection button linkage (120), and the main control unit (130) determines whether the injection is completed based on detection by the injection detection sensor (122), and it is also possible to calculate the relative angle change value (RA) up to the injection completion state as the drug dosage calculation value.

[0078] In this case, the injection detection sensor (122) can be implemented through one or more of various sensors (e.g., a push button, a contact sensor, an electrostatic capacity sensor, a conduction sensor, etc.) that can detect the user's finger, etc., pressing the injection button (11) for injection.

[0079] In addition, it is desirable that the main control unit (113) be able to store and manage injection history information including the dosage and injection time of each drug so that systematic and cumulative administration history management is possible in cases such as diabetes medications for which history management is important.

[0080] Meanwhile, it is preferable that the main control unit (130) be connected to an input / output interface (140) that receives operations required for operation and displays the operation status, as shown in FIG. 4, and is connected to the main control unit (130).

[0081] In this case, the input / output interface (140) can be implemented in various embodiments, and as one embodiment, the input / output interface (140) can be configured to include a display (140a) that displays the operating status, and an operation input unit (140b) that receives a user's operation input such as turning the operation on / off. Meanwhile, the display (140a) and the operation input unit (140b) can also be implemented in an integrated manner through a touch screen display. In addition, it is preferable that the input / output interface (114) further include an audio output means (140c) for outputting a warning sound or an alarm sound, as shown in FIG. 3.

[0082] The main body (110) and the injection button linkage (120) of the present invention can be mechanically implemented in a wide variety of embodiments.

[0083] As one example of these mechanical embodiments, as shown in FIG. 3, it is possible to configure the injection button linkage (120) of the main body (110) to be rotatable with the central axis (CA) of the main body (110) as the rotation axis.

[0084] In another embodiment of these mechanical embodiments, as shown in FIG. 6, the main body (110) is configured to further include an elasticity providing means (115), and the injection button linkage (120) can be configured to rotate in conjunction with the main body (110) by the elasticity providing means (115) and the rotation locking means (125). According to the configuration to rotate in conjunction with the rotation locking means (125), the main body (110) and the injection button linkage (120) rotate together during the dosage setting process. This characteristic is well suited to the operating characteristics of the injection button non-rotating pen-type injection device (1) in which the dose setting knob (12) and the injection button (11) rotate together during the dosage setting process.

[0085] Meanwhile, in response to the characteristic that during the injection process, the injection button (11) does not rotate while only the dosage setting knob (12) rotates in the return rotation direction, it is preferable that during the injection process, the injection button linkage (120) is configured so that the rotation lock means (125) is released so as not to be affected by the rotation of the main body (110), as shown in FIG. 7.

[0086] In this case, it is preferable that a signal connection unit (160) be further installed between the main body (110) and the injection button linkage unit (120) to enable signal transmission and reception, and to connect a signal between at least one of the main body IMU sensor (112) and the injection button IMU sensor (121) and the main control unit (130) by at least one of wired or wireless methods.

[0087] The signal connection part (160) can be configured to transmit signals in a wired manner in a slip-ring-like structure as shown in FIG. 6.

[0088] In addition, the signal connection unit (160) can be implemented using various means capable of transmitting wireless signals, such as Bluetooth.

[0089] Meanwhile, in order to enable the storage and management of the above-described injection history information using an external device, it is preferable that the main control unit (130) be connected to at least one of a user terminal (200), a medical institution server (300), and a guardian terminal (400) using a communication network (N) through the wireless main body wireless communication unit (116) as shown in FIG. 4 so as to transmit the above-described injection history information.

[0090] In this case, the user terminal (200) and the guardian terminal (400) may be a personal computer, a portable terminal, or an Internet of Things-based terminal. In FIG. 4, the user terminal (200) and the guardian terminal (400) are depicted as having a shape similar to a smart phone, but the spirit of the present invention is not limited thereto, and a terminal equipped with a terminal application as described above may be used without limitation.

[0091] To explain this in more detail, the user terminal (200) and the guardian terminal (400) may include any form of a computer (e.g., desktop, laptop, tablet, etc.), a media computing platform (e.g., cable, satellite set-top box, digital video recorder), a handheld computing device (e.g., PDA, email client, etc.), a mobile phone, or any form of other computing or communication platform, but the present invention is not limited thereto. Meanwhile, the user terminal (200) may also be configured to include a continuous glucose monitoring (CGM) system.

[0092] The above communication network (N) serves to connect at least one of the user terminal (200), the medical institution server (300), and the guardian terminal (400) with the wireless main body wireless communication unit (116). That is, the communication network (N) refers to a communication network that provides a connection path so that at least one of the user terminal (200), the medical institution server (300), and the guardian terminal (400) and the wireless main body wireless communication unit (116) can transmit and receive data. The communication network (N) may encompass wired networks such as LANs (Local Area Networks), WANs (Wide Area Networks), MANs (Metropolitan Area Networks), and ISDNs (Integrated Service Digital Networks), or wireless networks such as wireless LANs, CDMA, Bluetooth, and satellite communication, but the scope of the present invention is not limited thereto.

[0093] The drawings and specifications above have disclosed optimal embodiments. While specific terminology has been used herein, it is solely for the purpose of describing the present invention and is not intended to limit the scope of the invention as defined in the claims. Therefore, those skilled in the art will understand that various modifications and equivalent embodiments are possible. Therefore, the true technical protection scope of the present invention should be defined by the technical spirit of the appended claims.

Claims

1. In the injection amount measurement and management system that measures the amount of drug injected by being mounted on a non-rotating pen-type injection device (1) with an injection button during injection, A main body (110) detachably mounted on the dosage setting knob (12) of the pen-type injection device (1) and having an IMU sensor (112) installed therein; An injection button linkage (120) configured to be rotatable around a central axis (CA) of the main body (110) and mounted to be linked to the rotational operation of the injection button (11) of the pen-type injection device (1), and having an injection button IMU sensor (121) installed therein; A main control unit (130) connected to the above main body IMU (112) sensor and the above injection button IMU sensor (121); It is characterized by comprising an input / output interface (140) that is connected to the above main control unit (130) and receives operations required for operation and displays the operation status; The above subject control unit (130) is A pen-type injection device dose setting knob-mounted injection amount measurement and management system (100), characterized in that after calculating a relative angle change value (RA) between the measurement value of the main body IMU sensor (112) and the measurement value of the injection button IMU sensor (121), when the relative angle change value (RA) occurs in the return rotation direction, a drug dosage calculation value is obtained through the relative angle change value (RA) until the completion of injection, and then the drug dosage calculation value is managed and displayed as injection history information.

2. In claim 1, The above subject control unit (130) is A pen-type injection device dose setting knob-mounted injection amount measurement and management system (100), characterized in that when the rate of change of the relative angle change value (RA) is greater than a predetermined rate and then becomes 0, the injection is determined to be completed, and the relative angle change value (RA) up to the injection completion state is calculated as the drug dose calculation value.

3. In claim 1, It is further configured to include an injection detection sensor (122) installed in the above injection button linkage (120), The above subject control unit (130) is Whether the injection is completed is determined based on detection by the injection detection sensor (122). A pen-type injection device equipped with a dose setting knob for measuring and managing the dose (100), characterized in that the relative angle change value (RA) until the injection completion state is calculated as the drug dose calculation value.

4. In any one of claims 2 or 3, The above main body (110) is It is further configured to include an elasticity providing means (115), The above injection button linkage (120) is It is configured to rotate in conjunction with the main body (110) and the rotation lock means (125) by the elasticity providing means (115), but during the injection process, the rotation lock means (125) is released so as not to be affected by the rotation of the main body (110). A pen-type injection device dose setting knob-mounted injection amount measurement and management system (100), characterized in that a signal connection unit (160) is further installed between the main body (110) and the injection button linkage unit (120) to connect a signal between at least one of the main body IMU sensor (112) and the injection button IMU sensor (121) and the main control unit (130) in at least one of a wired or wireless manner.

5. In claim 1, It further comprises a wireless communication unit (150) connected to the above main control unit (130); The above wireless communication unit (150) A pen-type injection device equipped with a dose setting knob for measuring and managing the dose (100), characterized in that it is connected to at least one of a user terminal (200), a medical institution server (300), and a guardian terminal (400) through a communication network (N) and can share and transmit the injection history information of the main control unit (130).

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