KR20230173994A - Monitoring and Management System for Pen Type Injection Appartus with Double IMU Sensor - Google Patents

Abstract

The present invention relates to a general-purpose input amount measurement and management system for a pen-type injection device using a double IMU sensor. In the input amount measurement and management system that is mounted on a pen-type injection device (1) and measures the amount of drug input, the pen-type injection device A main body 110 that is detachably mounted on the injection device housing 10 of the device 1 and on which a reference measurement IMU sensor 112 is installed; and a main control connected to the reference measurement IMU sensor. Unit 113; and an input/output interface 114 that receives operations required for operation and displays the operating status; and a dosage setting knob mounting unit 120 that is detachably mounted on the dosage setting knob 12 of the pen-type injection device 1 and is equipped with a knob measuring IMU sensor 121; Characterized in that it is configured to include, wherein the main control unit 113 controls the knob measurement IMU sensor 121 based on the measured value of the reference measurement IMU sensor 112. After calculating the measured value by correcting it with the relative change value, the angle change value (θ) representing the rotation amount of the dose setting knob 12 is obtained using the relative angle change value among the relative change values, and then the set After calculating the drug dosage and obtaining it as a drug dosage calculation value, measuring the general dosage of a pen-type injection device using a double IMU sensor, characterized in that the drug dosage calculation value is managed and displayed as injection history information, and It relates to a management system (100).

Description

General purpose injection quantity measurement and management system for pen type injection device using double IMU sensor {Monitoring and Management System for Pen Type Injection Appartus with Double IMU Sensor}

The present invention relates to a general-purpose input amount measurement and management system for a pen-type injection device using a double IMU sensor. In the input amount measurement and management system that is mounted on a pen-type injection device (1) and measures the amount of drug input, the pen-type injection device A main body 110 detachably mounted on the injection device housing 10 of the device 1 through a coupling portion 111; and a reference measurement IMU sensor 112 installed on the main body 110. ; and, a main control unit 113 connected to the reference measurement IMU sensor; and an input/output interface 114 connected to the main control unit 113, which receives operations required for operation and displays the operating status. ; and a dosage setting knob mounting unit 120 that is detachably mounted on the dosage setting knob 12 of the pen-type injection device 1 and is equipped with a knob measuring IMU sensor 121; Characterized in that it is configured to include, wherein the main control unit 113 controls the knob measurement IMU sensor 121 based on the measured value of the reference measurement IMU sensor 112. After calculating the measured value by correcting it with the relative change value, the relative angle among the relative change values and the relative angle change value (RA), which is the change value, are used to represent the rotation amount of the dose setting knob 12. After obtaining the change value (θ), the set drug dosage is calculated and obtained as the drug dosage calculation value, and then the drug dosage calculation value is managed and displayed as injection history information. A dual IMU sensor It relates to a general-purpose input amount measurement and management system (100) for a pen-type injection device using.

In response to various requests, such as injections for diabetes or diet, there are various configurations and types of pen-type injection devices that allow users to directly set the dosage and inject.

Such pen-type injection devices include a disposable portable injection device having a configuration as exemplarily shown in FIG. 1 (e.g., Sanofi's Solostar(R) insulin injection pen) or a reusable portable injection device that can be used while changing cartridges. There are injection devices (e.g. Flexpen® insulin injection pens from Novo Nordisk).

In this manual portable injection device in which the user sets the dosage, when the dosage setting knob 12 is rotated in the process of setting the injection amount, the dosage setting knob 12 and the injection button 11 are connected. It is common to have the characteristic of being protruded or retracted. Meanwhile, during the injection process, when the injection button 11 is pressed, the protruding dose setting knob 12 rotates and has an operating characteristic in which it is retracted (hereinafter, the case with this operating characteristic is referred to as a 'protruding type'). )

On the other hand, like "FlexTouch®", even when the dose setting knob 12 for setting the injection amount is rotated, the injection button 11 does not protrude or retract accordingly, so that the overall length remains constant during use, the so-called "" A “non-protrusion” type also exists (hereinafter, cases with such operating characteristics are referred to as “non-protrusion types”).

In addition, such as Lilly's "Humalog®" as shown in Figure 2, a type that does not have a separate injection button 11 but has a dose setting knob 12 integrated to perform the function of the injection button. There are even manual, portable injection devices (hereinafter, cases with these operating characteristics are referred to as 'injection button integrated type'). In the case of such an injection button integrated type, in the dosage setting process, the dosage setting knob 12 integrated with the injection button 11 rotates and protrudes or retracts to set the dosage, but in the injection process, the dosage rotation knob 12 is rotated. (12) has an operating characteristic that allows it to be retracted without rotating.

However, regardless of whether it is disposable or reusable, these manual and portable injection devices simply have the function of setting the injection amount and injecting, so it is fundamentally impossible to systematically accumulate the dosage and administration time and manage the history. There was this.

Meanwhile, regarding the existing dosage measurement and management system that is mounted on such an injection device to measure and manage the dosage, it has the same configuration as "MEDICAL MODULE FOR DRUG DELIVERY PEN (US Patent No. 8,556,865) in Patent Document 1 below. There are a wide variety of configurations, including .

However, in the case of this existing invention, after attaching a housing of a complex configuration to the main body of the pen-type injection device, a complex structure such as a support fork is installed so that the follower part operates in conjunction with the axial movement of the operation button of the drug delivery pen. Because it had to be mounted on an operation button (dose setting knob), there was a problem that the configuration was complicated and it was 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 function is extremely limited, and they are inevitably manufactured to be applicable to only one type of injection device, so they cannot be used for general purposes. The problem was that it was completely impossible. In addition, there was a problem in that measurement precision was low because only the axial movement of the dose setting knob could be detected.

In order to solve the problems of these existing inventions, the following Patent Document 2, "General-purpose dosage measurement and management system equipped with a dosage setting knob for a pen-type injection device (Korean Patent Publication No. 10-2020-0023850), is equipped with a dosage setting knob. A configuration is disclosed in which the drug dose is calculated by detecting one or more of the rotational movement and positional movement of the dose setting knob, which is then managed and displayed as injection history information. Here, the three-axis acceleration is measured using the dose measurement sensor. A preferred embodiment uses a sensor and a 3-axis gyro sensor.

However, in this case, the precision is reduced due to limitations in the configuration in which the dose measurement sensor is installed only on the dose setting knob, especially if the pen-type injection device itself moves or rotates/shakes during the dose setting process. Since these changes were directly reflected in the measured values of the dose measurement sensor, there was a problem in that accurate measurement itself was impossible.

On the other hand, this problem is that even when the measured value is corrected by including a geomagnetic sensor in the dose measurement sensor installed only on the dose setting knob, the degree of tilt of the pen-type injection device can be corrected to some extent, but the pen-type injection device moves or There is a problem that it still cannot respond to changes such as

Patent Document 1: U.S. Patent No. 8,556,865 Patent Document 2: Republic of Korea Patent Publication No. 10-2020-0023850

The present invention solves the problems of the existing invention described above and includes a standard measurement IMU sensor for standard measurement installed in the main body and an input dose measurement and management system mounted on the dose setting knob. Through the configuration to be mounted on the standard measurement IMU sensor, the relative rotation angle of the knob measurement IMU sensor is calculated to measure the dose setting value, and the pen type is used during the dose setting process. It measures the dosage setting value precisely without being affected by the movement or rotation/shaking of the injection device itself, and through this, accurately measures the amount of drug administered and systematically manages the drug administration history, such as the drug dose and injection time. The task is to provide a general-purpose dosage measurement and management system for a pen-type injection device using a dual IMU sensor.

In addition, regardless of whether the installation location of each IMU sensor is spaced or tilted relative to the central rotation axis, it can be used by mounting it on a pen-type injection device of various standards, as well as various structures of the main body or knob mounting part. The task is to provide a general-purpose dosage measurement and management system for pen-type injection devices using a double IMU sensor that can always measure accurate dosage settings even in response to changes in design.

In addition, when the dose setting knob is rotated, the pen-type injection device using a double IMU sensor can be applied to both the protruding type in which the dosage setting knob protrudes and moves as well as the non-protruding type in which the dosage setting knob does not protrude. The task is to provide a general-purpose input measurement and management system.

In order to achieve the above-described task, the general-purpose input amount measurement and management system of the pen-type injection device using the double IMU sensor of the present invention is an input amount measurement and management system that is mounted on the pen-type injection device (1) and measures the amount of drug input. A main body 110 is detachably mounted on the injection device housing 10 of the pen-type injection device 1 through a coupling portion 111; and a reference measurement IMU installed on the main body 110. ) Sensor 112; and, a main control unit 113 connected to the reference measurement IMU sensor; connected to the main control unit 113, and receiving operations required for operation and displaying the operating status. input/output interface 114; and a dosage setting knob mounting unit 120 that is detachably mounted on the dosage setting knob 12 of the pen-type injection device 1 and is equipped with a knob measuring IMU sensor 121; Characterized in that it is configured to include, wherein the main control unit 113 controls the knob measurement IMU sensor 121 based on the measured value of the reference measurement IMU sensor 112. After calculating the measured value by correcting it with the relative change value, the relative angle among the relative change values and the relative angle change value (RA), which is the change value, are used to represent the rotation amount of the dose setting knob 12. After obtaining the change value (θ), the set drug dosage is calculated and obtained as a drug dosage calculation value, and then the drug dosage calculation value is managed and displayed as injection history information.

In addition, the dose setting knob mounting unit 120 further includes an injection detection sensor 122 capable of detecting a state in which the injection button 11 is pressed during the injection process, and the main control unit (113) is characterized by processing the drug dosage calculated before detection as the injection history information when it is detected that the injection button 11 is pressed through the injection detection sensor 122. Do it as

In addition, a main body wireless communication unit 116 installed on the main body 110 and connected to the main control unit 113; It is installed on the dosage setting knob mounting unit 120 and is connected to the knob measurement IMU sensor 121 to transmit the measured value of the knob measurement IMU sensor 121 to the main body wireless communication unit. Knob wireless communication unit 123 transmitting to (116); It is characterized in that it further includes.

In addition, a main body wireless charging unit 118, which is installed on the main body 110 and wirelessly transmits power from the main power supply unit 117; and a main body wireless charging unit 118, which is installed on the dosage setting knob mounting part 120, and the main body wireless charging unit ( a knob wireless charging unit 124 that charges the power delivered from 118) to the knob power unit 125; It is characterized in that it further includes.

Meanwhile, the main body wireless communication unit 116 is connected to one or more of the user terminal 200, the medical institution server 300, and the guardian terminal 400 through the communication network (N), and is connected to the main control unit 113. It is characterized by being able to share and transmit injection history information.

In the case of the present invention, a standard measurement IMU sensor for standard measurement installed in the main body and an input dose measurement and management system mounted on the dose setting knob are configured to be mounted on the dose setting knob. , Knob measurement for the measured value of the reference measurement IMU sensor, calculates the relative rotation angle using the relative angle change value of the IMU sensor, and measures the dose setting value during the dose setting process. Measures the dosage setting value precisely without being affected by the movement or rotation/shaking of the pen-type injection device itself, and through this, accurately measures the dosage of the drug and systematically manages the dosage history, such as the dosage and injection time of the drug. It has the advantage of being possible.

In addition, regardless of whether the installation location of each IMU sensor is spaced or tilted relative to the central rotation axis, it can be used by mounting it on a pen-type injection device of various standards, as well as various structures of the main body or knob mounting part. It has the advantage of being able to measure the exact dosage setting value at any time, even in response to changes in design.

In addition, there is an advantage that it can be applied to both the protruding type in which the dose setting knob protrudes and moves when the dose setting knob is rotated, as well as the non-protruding type in which the dose setting knob does not protrude.

Meanwhile, in the case of the protruding type, the task is to measure the relative movement distance of the dose setting knob in the direction of the rotation axis and then use this to correct the dose setting value to enable more precise measurement.

Figure 1: A diagram showing the configuration of a pen-type injection device according to an embodiment of the existing invention.
Figure 2: A diagram showing the appearance of a conventional pen-type injection device with integrated injection button.
Figure 3: An external view of a general-purpose dosage measurement and management system for a pen-type injection device using a dual IMU sensor according to an embodiment of the present invention.
Figure 4: Configuration block diagram of a general-purpose dosage measurement and management system for a pen-type injection device using a double IMU sensor according to an embodiment of the present invention.
Figure 5: A diagram showing the principle of correction with the relative angle change value of the general-purpose input amount measurement and management system of the pen-type injection device using the double IMU sensor of the present invention.

Hereinafter, with reference to the attached drawings, a general-purpose dosage measurement and management system for a pen-type injection device using a dual IMU sensor according to an embodiment of the present invention will be described in detail. First of all, it should be noted that in the drawings, identical components or parts are indicated by the same reference numerals whenever possible. In describing the present invention, detailed descriptions of related known functions or configurations are omitted in order to not obscure the gist of the present invention.

First, a description will be given of a pen-type injection device (1) equipped with and applied to a general-purpose dosage measurement and management system for a pen-type injection device using a double IMU sensor according to an embodiment of the present invention.

As described above, the pen-type injection device 1 has various specifications, sizes, shapes, etc., and can be classified as disposable or reusable. However, basically, after setting the dosage, the drug is injected as much as the set dosage. They have something in common in that they are injected.

1 is an exploded view of a pen-type injection device 1, which may represent an insulin injection pen, for example, of Solostar(R) from Sanofi. In this case, during the dose setting and injection process, the sleeve to which the dose setting knob 12 is connected protrudes or contracts and moves (indicated by a dotted line in FIG. 1).

On the other hand, in the case of the so-called "protrusion-free" type, such as the "FlexTouch®" pen-type injection device from Novodisk, most of the operating characteristics are the same as the conventional pen-type syringe described above, but when the dose setting knob 12 is operated, the external There is no sleeve that protrudes/descends up/down and moves. Accordingly, the injection button 11 also does not protrude or move in conjunction with the operation of the dose setting knob 12, and has the characteristic that the length of the entire injection device is maintained constant during the operation process. In addition, during the injection process of injecting the drug by pressing the injection button 11, the dose setting knob 12 does not rotate.

In addition, in the case of the so-called "injection button integrated type" such as Lilly's "Humalog®" shown in Figure 2, the dose setting knob 12 does not have a separate injection button 11 at all and functions as an injection button. They are designed to be performed together. In the case of such an injection button integrated type, in the dosage setting process, the dosage setting knob 12 integrated with the injection button 11 rotates and protrudes or retracts to set the dosage, but in the injection process, the dosage rotation knob 12 is rotated. (12) has an operating characteristic that allows it to be retracted without rotating.

Below, a general-purpose dosage measurement and management system for a pen-type injection device using a dual IMU sensor according to an embodiment of the present invention will be described in detail. As shown in Figure 3 or 4, the general-purpose dosage measurement and management system for a pen-type injection device using a double IMU sensor according to an embodiment of the present invention largely consists of a main body 110 and a dosage setting knob mounting unit 120. It is characterized by being composed of a.

First, the main body 110 will be described. As shown in FIG. 3, the main body 110 is detachably mounted on the injection device housing 10 of the pen-type injection device 1 through a coupling portion 111.

As shown in FIG. 4, a reference measurement IMU sensor 112 is installed in the main body 110. The IMU (Inertial Measurement Unit) sensor is an 'inertial measurement device' that can generally measure position information and direction information (angle information) within a three-dimensional space, and furthermore, can measure position information and direction information (angle information) within a three-dimensional space. It is designed so that it can also measure the direction of geomagnetism.

In addition, the main body 110 is installed with a main control unit 113 connected to the reference measurement IMU sensor as shown in FIG. 4, and as shown in FIGS. 3 and 4, the main control unit 113 It is connected to and an input/output interface 114 is installed to receive operations required for operation and display the operating status.

In this case, the input/output interface 114 can be implemented in various embodiments. In one embodiment, the input/output interface 114 includes a display 114a that displays the operating status, and a user's control such as setting the administration dose. It is possible to include a manipulation input unit 114b that receives manipulation input. Meanwhile, the display 114a and the manipulation input unit 114b can also be implemented integratedly through a touch screen type display. In addition, the input/output interface 114 preferably further includes a sound output means 114c for outputting a warning sound or notification sound, as shown in FIG. 4.

Next, the dosage setting knob mounting unit 120 will be described. The dose setting knob mounting portion 120 is detachably mounted on the dose setting knob 12 of the pen-type injection device 1, as shown in FIG. 3, and the knob measurement IMU as shown in FIG. 4. ) The sensor 121 is configured to be installed.

According to this basic configuration, the main control unit 113 changes the measured value of the knob measurement IMU sensor relative to the measured value of the reference measurement IMU sensor 112. An angle representing the rotation amount of the dose setting knob 12 is calculated by correcting the value (this is divided into a relative displacement amount and a relative angle change value), and using the relative angle and the relative angle change value among the relative change values. After obtaining the change value (θ), the set drug dosage is calculated and obtained as the drug dosage calculated value, and then the calculated drug dosage value is managed and displayed as injection history information. In this case, the main control unit 113 stores and manages injection history information including each drug dosage and injection time to enable history management in cases such as diabetes drugs where systematic and cumulative administration history management is important. It is desirable to be able to do so.

The “relative angle change value” calculated by correcting the measured value of the knob measuring IMU sensor 121 based on the measured value of the reference measuring IMU sensor 112 is shown in FIG. As shown in Figure 5, the direction information (angle information: expressed in the reference coordinate system of x, y, z in Figure 5) of the reference measurement IMU sensor 112 in three-dimensional space and the knob measurement IMU ( It can be calculated as the difference (i.e., the change in relative angle value) between the direction information (angle information: expressed as x', y', and z' in FIG. 5) of the IMU sensor 121. This “relative angle change value” may be calculated using Euler angle or a quaternion. Since the method of calculating the direction/angle change value in space using this calculation method is a widely used method, detailed description is omitted.

Using the relative angle change value in this way, as shown step by step in FIG. 5, the dose setting knob 12 on which the dose setting knob mounting part 120 is mounted is connected to the injection on which the main body 110 is mounted. Due to operating conditions that are limited to follow the physical characteristics of rotating the device housing 10 with the central axis (CA) as the rotation axis, the angle change value ( It is reflected and appears in θ). That is, the relative angle change value reflects only the angle change value (θ) with the central axis CA as the rotation axis. This characteristic equally applies even if the pen-type injection device 1 is a so-called “protruding type” and the dose setting knob 12 rotates and moves linearly during the dose setting process. That is, the angle change value θ with the central axis CA as the rotation axis due to the rotational operation of the dose setting knob 12 is still reflected in the relative angle change value. Meanwhile, the linear movement of the dose setting knob 12 is reflected only in the relative displacement amount, and affects the relative angle change value calculated by the reference coordinate system according to the direction information of the reference measurement IMU sensor 112. does not affect

This process is described in more detail with reference to FIG. 5 as follows.

First, the relative direction of the central axis (CA) with respect to the reference direction information (angle information: expressed in the reference coordinate system of x, y, z in FIG. 5) measured by the reference measurement IMU sensor 112. This is given. In this case, the relative direction of the central axis (CA) with respect to the direction information of the reference measurement IMU sensor 112 is the main body 110 on which the reference measurement IMU sensor 112 is installed. Since is mounted and fixed on the pen-type injection device 1, it is not affected at all and always maintains a constant value even if the pen-type injection device 1 is tilted or moved. (This characteristic is subject to the following entire process. It remains the same through.)

Then, as shown in (b) in FIG. 5, the direction information (expressed as x', y', and z' in FIG. 5 (a)) measured by the knob measurement IMU sensor 121 is The reference direction information of the reference measurement IMU sensor 112 is converted into a relative angle value (angle information: in FIG. 5 (expressed as xr', yr', zr' in FIG. 5)) as a reference coordinate. .

Next, a reference plane (RS) perpendicular to the central axis (CA) is set, and the relative angle values (xr', yr', zr') are projected onto the reference plane (RS) (respectively " It is called “projection direction information” and expressed as x”, y”, z”.)

When rotating the dosage setting knob 12 to set the dosage (throughout FIG. 5, a subscript of “1” is displayed before rotation, and a subscript of “2” is displayed after rotation). expressed as.) The projection direction information (x", y", z") changes on each concentric circle as shown in (C) in Figure 5 on the reference plane (RS), and is all equally administered. It has the characteristic of changing by the angle change value (θ) with the central axis CA as the rotation axis according to the rotation of the amount setting knob 12. That is, the projection direction information (x", y", z") ) The change in angle directly reflects the angle change value (θ).

By multiplying the angle change value (θ) by the administered drug amount per unit angle change value of the dosage setting knob 12, the final drug dosage calculated value can be calculated and obtained.

Meanwhile, the relative direction of the central axis (CA) with respect to the direction information of the reference measurement IMU sensor 112 is determined by installing the reference measurement IMU sensor 112 on the main body 110. In this case, it can be determined as a given value by pre-aligning it to have a predetermined relative direction with respect to the central axis (CA) based on the position according to the design arrangement.

As another method of determining the relative direction of the central axis (CA) with respect to the direction information of the reference measurement IMU sensor 112, the projection direction information is provided on each concentric circle as shown on the reference plane. It is possible to set the reference plane to satisfy the characteristic of changing by the angle change value (θ) with the central axis (CA) as the rotation axis according to the rotational operation of the dosage setting knob (12). do. That is, the projection direction information (x", y", z"), which is a projection vector representing each of the projection direction information on the reference plane, is used to rotate the dose setting knob 12 to set the dose. In the process, it always starts from the central axis (CA) and reaches each concentric circle centered on the central axis (CA), rotating together on the reference plane (RS), as shown in (c) in FIG. 5, a) Their lengths remain constant during the rotation process, and b) they all rotate on the reference plane by the same angle change value (θ). Therefore, the reference plane is adjusted to satisfy these two conditions. It is also possible to calculate and obtain the relative direction of the central axis (CA) with respect to the direction information of the reference measurement IMU sensor 112.

Meanwhile, in FIG. 5, for convenience of explanation and expression, the y-axis in the direction information of the reference measurement IMU sensor 112 and the y-axis in the direction information of the knob measurement IMU sensor 121 are shown in FIG. 'It is expressed as a case where the axis is aligned similarly to the direction of the central axis (CA), but even if it is aligned differently, due to the nature of calculating the relative angle change value using the relative change value of direction information, there is no alignment. Even in this state, the relative angle change value directly reflects the angle change value (θ) with the central axis (CA) as the rotation axis.

Therefore, it is possible to calculate the angle change value θ, which directly represents the rotation amount of the dose setting knob 12 with the central axis CA as the rotation axis, through the relative angle and the relative angle change value. , it is possible to calculate immediate and accurate drug dosage and manage and display it as drug dosage calculation value.

Meanwhile, the relative angle change is a relative change value based on the direction information (angle information: expressed in the reference coordinate system of x, y, z through FIG. 5) of the reference measurement IMU sensor 112. Due to the characteristic of calculating the drug dose by calculating the value and using it as the drug dose calculation value, movement or tilt during dose setting has no effect on the relative angle change value calculated by being corrected as above. Therefore, during the dosage setting process, the dosage setting value is precisely measured without being affected by the movement/rotation/shaking of the pen-type injection device itself due to the user's hand tremor or inexperience in using it, and through this, the amount of drug administered is accurately measured. It becomes possible to systematically manage the administration history, such as drug dosage and administration time.

In addition, due to the characteristic of calculating the relative angle change value to calculate the drug dosage and using it as the drug dosage calculation value, the reference measurement IMU sensor 112 and the knob measurement IMU When the sensor 121 is installed, whether it is separated or tilted with respect to the rotation center axis (CA) is also determined by the reference measurement IMU, as expressed in the process from (a) to (b) in FIG. 5. ) The relative angles (xr', yr', zr') based on the direction information (x, y, z) of the sensor 112 and the projection direction information (x", y", z) calculated accordingly ") has no effect on the angle change value (θ) using the change.

Therefore, not only can it be used by mounting on a pen-type injection device of various standards, but it is also possible to measure an accurate dosage setting value at any time even in response to various changes in structure or design of the main body or knob mounting part.

Meanwhile, as shown in FIG. 4, the dose setting knob mounting unit 120 further includes an injection detection sensor 122 capable of detecting a state in which the injection button 11 is pressed during the injection process. It is configured that, when the main control unit 113 detects that the injection button 11 is pressed through the injection detection sensor 122, the drug dose calculation value calculated before detection is stored in the injection history. It is desirable to process it as information.

In this case, the injection detection sensor 122 is capable of detecting a state in which the injection button 11 is pressed during the injection process and detects that the previous dose setting process has been completed. It is configured to have a function. That is, during the dosage setting process, the user operates the dosage setting knob 12 to increase or decrease the dosage, and this dosage setting operation may be performed repeatedly several times. Therefore, when this dose setting process is completed and the infusion begins, the dose set immediately before the infusion begins becomes the actual dose. Therefore, it is desirable to detect this injection process.

The injection detection sensor 122 is preferably configured to detect the state in which the user's finger touches or pressure is applied to press the injection button 11, and is usually a touch sensor or pressure sensor capable of detecting contact. It is possible to form a sphere through a compression sensor that can detect.

Meanwhile, in order to calculate the relative angle change value by correcting the measured value of the knob measuring IMU sensor 121 based on the measured value of the reference measuring IMU sensor 112, , a transmission means is needed to transmit the measured value of the knob measurement IMU sensor 121 to the main control unit 113.

As such a transmission means, a physical configuration (for example, For example, it is possible to construct a wired circuit such as a combination of an elastic cable and a slip-ring-like structure. Meanwhile, another embodiment of the transmission means for transmitting the measured value of the knob measurement IMU sensor 121 to the main control unit 113 is one configured using wireless for convenience of installation and use. desirable.

Therefore, the general-purpose input amount measurement and management system 100 of a pen-type injection device using a double IMU sensor according to an embodiment of the present invention is installed in the main body 110, as shown in FIG. 4, and the main control unit A main body wireless communication unit 116 connected to (113), installed on the dosage setting knob mounting unit 120, and connected to the knob measuring IMU sensor 121 to determine the knob measuring IMU It is preferable that the device further includes a knob wireless communication unit 123 that transmits the measured value of the sensor 121 to the main body wireless communication unit 116 and is configured to exchange information using a wireless method.

On the other hand, when configured to exchange information between the main body 110 and the dose setting knob mounting unit 120 in a wireless manner as above, a separate power source is provided for operation of the dosage setting knob mounting unit 120. This is also possible, but considering that only a relatively small amount of power is used temporarily for the operation of the dose setting knob mounting unit 120, it is preferable to supply wireless power for convenience of use. To this end, the general input amount measurement and management system 100 of a pen-type injection device using a double IMU sensor according to an embodiment of the present invention is installed in the main body 110, as shown in FIG. 4, and includes a main power unit ( It is further configured to include a main body wireless charging unit 118 that transmits power wirelessly, and the dosage setting knob mounting unit 120 is preferably operated by receiving power from the main body wireless charging unit 118. .

Meanwhile, considering that in the case of the so-called “protruding” pen-type syringe, the dose setting knob mounting part 120 may be spaced apart from the main body 110, the dose setting knob mounting part 120 is installed for more stable power supply. ) is preferably configured to further include a knob wireless charging unit 124 that charges the knob power unit 125 with power delivered from the main body wireless charging unit 118.

Meanwhile, in order to make it possible to store and manage the injection history information using an external device, the main control unit 113 connects the communication network through the wireless main body wireless communication unit 116 as shown in FIG. 4. It is preferable to use (N) to connect to one or more of the user terminal 200, the medical institution server 300, and the guardian terminal 400 to transmit the injection history information.

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 (Internet of Things)-based terminal. In Figure 4, the user terminal 200 and the guardian terminal 400 are shown in a shape similar to a smart phone, but the spirit of the present invention is not limited thereto, and as described above, a terminal equipped with a terminal application can be borrowed without restrictions.

To explain this in more detail, the user terminal 200 and the guardian terminal 400 are computer (e.g., desktop, laptop, tablet, etc.), media computing platform (e.g., cable, satellite set-top box, digital video, etc.) recorder), handheld computing devices (e.g., PDAs, email clients, etc.), any type of cell phone, any type of other type of 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.

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

In the above, optimal embodiments have been disclosed in the drawings and specifications. Although specific terms are used here, they are used only for the purpose of describing the present invention and are not used to limit the meaning or scope of the present invention described in the claims. Therefore, those skilled in the art will understand that various modifications and other equivalent embodiments are possible. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the attached patent claims.

1: Pen-type injection device
10: injection device housing
11: Injection button 12: Dose setting knob
13: Display 14: Insulin container
15: Syringe needle 16: Inner needle cap
17: External needle cap 18: Cap
CA: central axis
100: General-purpose dosage measurement and management system for pen-type injection device using double IMU sensor
110: main body
111: coupling part
112: Reference measurement IMU sensor
113: main control unit 114: input/output interface
114a: display 114b: operation input unit
114c: sound output means
116: main body wireless communication unit 117: main power unit
118: Main body wireless charging unit
120: Dosage setting knob mounting part
121: Knob measurement IMU sensor
122: injection detection sensor 123: knob wireless communication unit
124: Knob wireless charging unit 125: Knob power unit
200: user terminal
300: Medical institution server
400: Guardian terminal

Claims (5)

In the input amount measurement and management system mounted on the pen-type injection device (1) to measure the amount of drug input,
A main body 110 detachably mounted on the injection device housing 10 of the pen-type injection device 1 through a coupling portion 111;
A reference measurement IMU sensor 112 installed in the main body 110;
A main control unit 113 connected to the reference measurement IMU sensor;
An input/output interface 114 connected to the main control unit 113 and receiving operations required for operation and displaying the operating status;
A dosage setting knob mounting unit 120 that is detachably mounted on the dosage setting knob 12 of the pen-type injection device 1 and has a knob measuring IMU sensor 121 installed thereon; Characterized by being composed of,
The main control unit 113,
Based on the measured value of the reference measurement IMU sensor 112, the measured value of the knob measurement IMU sensor 121 is corrected and calculated as a relative change value, and then the relative change value is calculated. The angle change value (θ) representing the rotation amount of the dose setting knob 12 is obtained using the relative angle and the relative angle change value (RA), which is the change value, and then the set drug dose is calculated to administer the drug. A general-purpose dosage measurement and management system (100) for a pen-type injection device using a double IMU sensor, characterized in that, after obtaining the drug dosage calculation value, the calculated drug dosage value is managed and displayed as injection history information.
The method of claim 1,
The dosage setting knob mounting unit 120,
It further includes an injection detection sensor 122 capable of detecting a state in which the injection button 11 is pressed during the injection process,
The main control unit 113,
When the injection button 11 is detected to be pressed through the injection detection sensor 122, the drug dosage calculated before detection is processed as the injection history information. A general-purpose dosage measurement and management system for pen-type injection devices using an MU sensor (100).
The method of claim 2,
A main body wireless communication unit 116 installed on the main body 110 and connected to the main control unit 113;
It is installed on the dose setting knob mounting unit 120 and is connected to the knob measurement IMU sensor 121 to transmit the measured value of the knob measurement IMU sensor 121 to the main body wireless communication unit 116. ) Knob wireless communication unit (123) transmitting to; A general-purpose input amount measurement and management system (100) for a pen-type injection device using a dual IMU sensor, characterized in that it further includes.
The method of claim 3,
A main body wireless charging unit 118 that is installed on the main body 110 and wirelessly transmits power from the main power unit 117;
A knob wireless charging unit 124 is installed on the dosage setting knob mounting unit 120 and charges the knob power unit 125 with power delivered from the main body wireless charging unit 118; A general-purpose input amount measurement and management system (100) for a pen-type injection device using a dual IMU sensor, characterized in that it further includes.
The method of claim 3,
The main body wireless communication unit 116,
It is characterized by being connected to one or more of the user terminal 200, the medical institution server 300, and the guardian terminal 400 through a communication network (N) to share and transmit the injection history information of the main controller 113. A general-purpose input amount measurement and management system (100) for a pen-type injection device using a double IMU sensor.