KR102397372B1 - Smart insulin injection device capable of automatic injection - Google Patents

Abstract

The present invention relates to a smart insulin injection device capable of performing automatic injection. The smart insulin injection device comprises: a casing; a syringe installed inside the casing and having a guide installed at a lower end; a cartridge accommodated inside the syringe, having a piston installed at an upper side and a needle surrounded by the guide at a lower side, and injecting insulin stored therein through the needle when the piston is pressed; a suction unit sucking air between the cartridge and the syringe when the guide is in close contact with the skin to lift the skin so that the skin is pierced by the needle; and an insulin injection unit injecting insulin into the skin by pressing the piston of the cartridge when the air pressure sucked by the suction unit is maintained within a predetermined range for a predetermined time. Moreover, a needle automatically pierces a skin and insulin is automatically injected into the skin. As a result, fear and resistance of insulin injection may be reduced.

Description

Smart insulin injection device capable of automatic injection

The present invention relates to an insulin injection device, and more particularly, to a smart insulin injection device capable of automatically injecting insulin in the form of an insulin pen that can automatically inject insulin into the skin.

Diabetes mellitus is a chronic disease that occurs when the concentration of glucose (blood sugar) in the blood becomes higher than normal due to lack of insulin in the body.

For insulin administration, it is common to use an insulin syringe or an insulin pen.

Insulin syringes and insulin pens have the advantage of not only being able to administer insulin conveniently at a low price, but also making it easy to learn how to use it.

Among them, the insulin syringe requires the user (patient) to directly push the syringe needle into the skin and then directly press the syringe piston to inject insulin into the skin.

In addition, the insulin pen mounts a cartridge in which insulin is stored in an automatic injection device, and when a user (patient) directly punctures a needle into the skin and presses a button provided in the automatic injection device, insulin is automatically injected into the skin.

In the case of the insulin syringe or insulin pen of the above method, the patient has to directly pierce the needle into the skin (common to both the insulin syringe and the insulin pen), and for insulin injection, the patient must directly insert the needle into the skin and cause pain There is a problem in that the syringe piston has to be pressed (corresponding to an insulin syringe), which creates a very painful fear from the patient's point of view, which can lead to rejection of insulin injection.

Therefore, although there is a need for an insulin injection device capable of minimizing the fear that may occur during the insulin injection process as described above, an appropriate insulin injection device has not yet been proposed.

Patent Publication 10-2014-0035746

The present invention has been devised to solve the problems of the prior art, and is an insulin pen type automatic injection that allows a needle to be automatically pierced into the user's skin and then insulin is automatically injected into the skin through the needle. It aims to provide a possible smart insulin injection device.

A smart insulin injection device capable of automatic injection according to the present invention for solving the above problems includes: a casing; a syringe installed inside the casing and provided with a guide at the lower end; a cartridge accommodated in the syringe, having a piston installed on the upper side and a needle surrounded by the guide on the lower side, in which the insulin stored therein is injected through the needle when the piston is pressed; a suction unit that sucks air between the cartridge and the syringe when the guide is in close contact with the skin to lift the skin so that the skin is pricked by a needle; and an insulin injection unit for injecting insulin into the skin by pressing the piston of the cartridge when the pressure of the air sucked in by the suction unit is maintained within a predetermined range for a predetermined period of time.

Herein, the suction unit includes: a suction tube having one end communicating with the space between the cartridge and the syringe; a vacuum pump connected to the other end of the suction tube to suck air in the space between the cartridge and the syringe; and a pressure sensor installed on the pipe line of the suction tube or at the end of the suction tube to measure the pressure of the sucked air.

In addition, the insulin injection unit includes a driving motor; a screw shaft connected to the motor shaft of the driving motor and rotating together with the motor shaft; and a piston pressing block connected to the screw shaft to press the piston of the cartridge by advancing in the syringe.

In addition, the Peltier module for supplying cold or warm air to the syringe to maintain the temperature inside the syringe in which the cartridge is accommodated within a set temperature range; is configured to further include.

In addition, the Peltier module includes a temperature sensor for measuring the temperature of the syringe; a Peltier element for generating cold or warm air according to the value measured by the temperature sensor; a conductive plate that is interviewed on one side of the Peltier element and is in contact with the syringe to deliver cold or warmth; And a heat sink that is interviewed on the other side of the Peltier element; and a blower fan that provides wind to the heat sink.

In addition, it further includes; a control unit electrically connected to the suction unit, the insulin injection unit, and the Peltier module, wherein the control unit displays information about the amount of insulin injected, the number of times of insulin injection, and the syringe temperature, and is connected to a smartphone connected through a communication network. send.

In addition, when the temperature of the syringe is outside the set temperature range, it commands the control unit to operate the Peltier module through the smart phone.

In addition, an end cap having a plurality of air discharge holes for discharging the air sucked in by the suction unit to the outside is provided at the upper end of the casing.

In addition, a battery for supplying electricity to the suction unit and the insulin injection unit is installed inside the casing, and a charging hole for supplying and storing electricity to the battery is formed in the end cap.

In addition, the cartridge includes a cylinder having a needle at the bottom and storing insulin therein; a piston installed so as to move forward and backward in and out of the cylinder; a vibrator installed at the lower end of the piston to vibrate the insulin; and a vibrator cover surrounding the outer surface of the vibrator and advancing together when the piston advances to pressurize insulin.

The smart insulin injection device capable of automatic injection of the present invention configured as described above, after the user adheres the guide to the skin, air is sucked by the suction unit to form a vacuum, and the skin is lifted upward and automatically stabbed by the needle, After the skin is punctured by a needle, the insulin injection unit is automatically operated and insulin is automatically injected into the skin, thereby reducing fear and rejection of insulin injection.

In addition, since the temperature of the syringe in which the cartridge is accommodated can be maintained constant by the operation of the Peltier module, the insulin remaining in the cartridge is stored in a constant temperature state after insulin injection, so that the insulin can be stored for a long time without deterioration.

In addition, it is possible to check the status of the insulin injection device in real time by receiving various information on the amount of insulin injection, the number of injections, the syringe temperature, etc. through the control unit. There is an advantage that the temperature of the syringe can be controlled remotely by manipulating the

1 to 6 are views showing a smart insulin injection device capable of automatic injection according to the present invention.
7 is a cross-sectional view of a smart insulin injection device capable of automatic injection according to the present invention.
8 is a view showing a state in which the suction unit of the automatic injectable smart insulin injection device according to the present invention operates to suck air.
9 is a view showing the operation of the insulin injection unit of the automatic injection capable smart insulin injection device according to the present invention.
10 is a view showing a state in which the automatic injection capable smart insulin injection device according to the present invention is operated, and insulin is injected after the skin is lifted and punctured by a needle.
11 is a view showing a cartridge of the automatic injectable smart insulin injection device according to the present invention.

Hereinafter, an embodiment of a smart insulin injection device capable of automatic injection according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 6 are views showing a smart insulin injection device capable of automatic injection according to the present invention, and FIG. 7 is a cross-sectional view showing a smart insulin injection device capable of automatic injection according to the present invention.

And, Figure 8 is a view showing the state that the suction unit of the automatic injection capable smart insulin injection device according to the present invention is operated to suck air, Figure 9 is the insulin injection unit of the automatic injection capable smart insulin injection device according to the present invention is operated 10 is a diagram showing the state in which the automatic injection capable smart insulin injection device according to the present invention is operated, the skin is lifted and insulin is injected after being punctured by a needle, and FIG. 11 is an automatic injection device according to the present invention It is a diagram showing a cartridge of an injectable smart insulin injection device.

A smart insulin injection device capable of automatic injection according to the present invention includes a casing (10), a syringe (20) installed inside the casing (10), a cartridge (30) storing insulin therein, and the syringe (20) and A suction unit 40 for creating a vacuum between the cartridges 30, an insulin injection unit 50 for injecting the insulin stored in the cartridge 30 into the skin S, and cold or warm air to the syringe 20 It is configured to include a Peltier module 60 to supply, a control unit 70 provided in the casing 10 , and an end cap 80 installed in the casing 10 .

The casing 10 forms the outer shape of the insulin injection device according to the present invention, and includes a syringe 20, a cartridge 30, a suction unit 40, an insulin injection unit 50, a Peltier module 60, etc. accept in The casing 10 is composed of a syringe cover 11 and a top cover 12 installed on the upper end of the syringe cover 11 .

And, the top cover 12 of the casing 10 is provided with an ON/OFF switch 12a, and when the on/off switch 12a is turned ON, the insulin injection device is activated. It is converted to an operational state.

The syringe 20 is a tube shape with an empty inside, the guide 21 is installed at the bottom, and the cartridge 30 is accommodated therein.

The guide 21 has a lower end in close contact with the skin S of the user (patient), and has a shape that increases in diameter toward the lower side. The guide 21 may be made of a transparent, translucent or opaque material, etc., but the needle 31a of the cartridge 30 inside the guide 21 must be invisible to eliminate the fear of the needle 31a. It is preferable to manufacture with an opaque material.

And, the guide 21 has an upper end installed and fixed at the lower end of the syringe 20, and by sealing the lower portion of the space formed between the syringe 20 and the cartridge 30, the suction unit 40 is the syringe 20. When the air between the and the cartridge 30 is sucked, external air is prevented from flowing into the syringe 20 through the lower side of the syringe 20 .
Here, the guide 21 has the lower end in close contact with the skin, and the air between the syringe 20 and the cartridge 30 is sucked and sucked, and when the skin S is lifted, insulin is injected into the skin through the needle 31a. Keep it in close contact until sprayed.

The cartridge 30 is accommodated in the syringe 20 , the piston 32 is installed on the upper side, and the needle 31a surrounded by the guide 21 is provided on the lower side. Therefore, when the piston 32 is pressed, the insulin stored therein is injected into the skin S through the needle 31a.

In other words, the cartridge 30 includes a cylinder 31 , a piston 32 installed in the cylinder 31 , a vibrator 33 installed in the piston 32 , and a vibrator 33 installed in the vibrator 33 . It is composed of a vibrator cover 34 .

The cylinder 31 has insulin stored therein, and a needle 31a for injecting insulin into the skin S is provided at the lower end.

The piston 32 is installed so as to be able to move forward and backward in and out of the cylinder 31 , and when it advances into the cylinder 31 , insulin is injected into the skin S through the needle 31a.

The vibrator 33 is installed at the lower end of the piston 32 to vibrate the insulin to mix insulin.

The vibrator cover 34 surrounds the outer surface of the vibrator 33 and advances together when the piston 32 advances to pressurize the insulin in the cylinder 31 .

On the other hand, the cartridge 30 is not limited to the above structure, and there are cartridges of various shapes and structures on the market, which are pressurized by the insulin injection unit 50 so that the insulin is injected into the skin (S) through the needle 31a. Anything that is injected internally is fine.

The suction unit 40 sucks air in the space formed between the cartridge 30 and the syringe 20 when the guide 21 is in close contact with the skin S, and creates a vacuum pressure in the space to form the skin (S) ) is lifted, and the suction unit 40 is to prick the skin (S) lifted in this way by the needle (31a). In other words, the skin (S) is lifted upward in the guide (21) by the suction unit (40), and the skin (S) lifted in this way is automatically pricked by the needle (31a) inside the guide (21). do.

The suction unit 40 measures the pressure of the suction tube 41 , the vacuum pump 42 connected to the suction tube 41 to suck air, and the air sucked by the vacuum pump 42 . It is composed of a pressure sensor (43).

One end of the suction tube 41 passes through the syringe 20 to communicate with the space between the cartridge 30 and the syringe 20 .

The vacuum pump 42 is connected to the other end of the suction tube 41 to suck air in the space between the cartridge 30 and the syringe 20 . Thereby, a vacuum or air pressure close to vacuum is formed between the cartridge 30 and the syringe 20, and the skin S is lifted toward the needle 31a due to this pressure change.

The pressure sensor 43 is installed on the pipe line of the suction tube 41 or installed at the end of the suction tube 41 to measure the pressure of air sucked by the vacuum pump 42 . The measured pressure value is transmitted to the control unit 70 and displayed.

The insulin injection unit 50 presses the piston 32 of the cartridge 30 when the pressure of the air sucked by the suction unit 40 is maintained within a predetermined range for a predetermined time. That is, when the air between the syringe 20 and the cartridge 30 is sucked by the vacuum pump 42 and the pressure value measured by the pressure sensor 43 is maintained within a certain range for a certain period of time, the insulin injection unit ( 50) works to inject insulin into the skin S.

The insulin injection unit 50 as described above includes a driving motor 51 , a screw shaft 52 connected to a motor shaft of the driving motor 51 , and a piston pressing block 53 connected to the screw shaft 52 . is composed of

The drive motor 51 rotates the motor shaft when power is supplied.

The screw shaft 52 is inserted into the syringe 20 and rotates together with the motor shaft of the driving motor 51 . The screw shaft 52 has a spiral formed on its outer circumferential surface.

The piston pressing block 53 moves forward and backward in a straight line in the syringe 20 when the inner circumferential surface is spirally coupled to the screw shaft 52 and the screw shaft 52 rotates. When the piston pressing block 53 moves forward, it presses the piston 32 of the cartridge 30 so that the piston 32 pushes the drug toward the needle 31a.

In other words, a pair of rails 22 are formed inside the syringe 20 , and a rib 53a fitted to the rail 22 is protruded from the outer surface of the piston pressing block 53 , so the screw When the shaft 52 rotates, the ribs 53a move forward and backward in a straight line along the rail 22 , so that the piston pressing block 53 moves forward and backward in a straight line.

The Peltier module 60 supplies cold or warm air to the syringe 20 to maintain the temperature inside the syringe 20 in which the cartridge 30 is accommodated within a set temperature range. In order to safely store the insulin remaining in the cartridge 30 after injecting a certain amount of insulin without deterioration, it must be stored below a certain temperature or above a certain temperature depending on the type of insulin. In order to maintain such an appropriate storage temperature, in the present invention Use the Peltier module 60 to fit the inside of the syringe 20 within the desired temperature range.

The Peltier module 60 includes a temperature sensor 61, a Peltier element 62 for generating cold or warm air, and a conductive plate 63 that is interfaced to one side of the Peltier element 62, and the It is composed of a heat dissipation plate 64 that is interviewed on the other side of the Peltier element 62 , and a blower fan 65 that provides wind to the heat dissipation plate 64 .

The temperature sensor 61 is installed in the syringe 20 to measure the temperature of the syringe 20 , and the measured temperature value is transmitted to the controller 70 and displayed.

The Peltier element 62 generates cold air or warmth according to a value measured by the temperature sensor 61 . That is, when the temperature inside the syringe 20 does not reach the proper storage temperature of insulin, the Peltier element 62 generates heat according to the command of the control unit 70, and when it exceeds the proper storage temperature of insulin, the control unit ( 70) to generate cold air in the Peltier element 62 according to the command.

The conductive plate 63 connects the syringe 20 and the Peltier element 62, and is made of a metal having excellent thermal conductivity, and one side is connected to the Peltier element 62 and the other side is connected to the syringe 20 to connect the Peltier element. Cold air or warmth is provided from 62 and the cold air or warmth is delivered to the syringe 20 . At this time, it is preferable that the syringe 20 is also made of a metal having excellent thermal conductivity to receive cold or warmth well.

The heat sink 64 radiates heat generated from the Peltier element 62 .

The blower fan 65 promotes heat dissipation performed by the heat sink 64 .

The control unit 70 is provided on the top cover 12 of the casing 10, and is electrically connected to the suction unit 40, the insulin injection unit 50, and the Peltier module 60 to control and operate them. stop working

The control unit 70 transmits information about the amount of insulin injected, the number of times of insulin injection, the pressure inside the syringe 20, the temperature of the syringe 20, and the like from the insulin injection unit 50 or the suction unit 40 and the temperature sensor 61, etc. It is provided and displayed and transmitted to a smartphone connected through a wired/wireless communication network. Therefore, you can check the above information through your smartphone.

On the other hand, when the temperature of the syringe 20 is outside the set temperature range, it is possible to command the control unit 70 to operate the Peltier module 60 through the smartphone.

That is, when it is confirmed through a smartphone that the temperature of the syringe 20 is not an appropriate temperature for storing insulin, the user transmits a signal to the control unit 70 through the smartphone to operate the Peltier module 60 will do

The end cap 80 is installed on the upper end of the casing 10, that is, the upper end of the top cover 12, and a plurality of air discharge holes 81 for discharging the air sucked by the suction unit 40 to the outside. this is formed

The air discharge holes 81 are formed at regular intervals along the edge of the end cap 80 to form a circle.

On the other hand, a battery 90 capable of storing electricity is installed inside the casing 10 to supply electricity to the suction unit 40, the insulin injection unit 50, the Peltier module 60, and the control unit 70, so that the insulin injection device can be used wirelessly, and a charging hole 82 for supplying and storing electricity to the battery 90 is formed in the center of the end cap 80 .

The operation of the automatic injectable smart insulin injection device according to the present invention configured as described above will be briefly described as follows.

First, when the on/off switch 12a is operated and turned on, the suction unit 40 starts to operate, and in this state, the guide 21 is brought into contact with the skin S of the user (patient).

While the guide 21 is in contact with the skin S, the air between the syringe 20 and the cartridge 30 is sucked by the suction unit 40 and the air is discharged to the outside through the air discharge hole 81. , When this process continues, the pressure in the space between the syringe 20 and the cartridge 30 drops and the skin S is lifted upwards.

As the skin (S) is lifted, the needle (31a) is automatically pricked into the skin (S).

When the pressure value measured by the pressure sensor 43 is maintained within a certain range for a certain time after the needle 31a is pierced into the skin S, the insulin injection unit 50 is operated and the piston pressure block 53 is inserted into the cartridge. Insulin is injected into the skin (S) by pressing the piston (32) of (30).

In this way, the state in which insulin is injected into the skin S is maintained for a certain period of time (eg, 10 seconds). The reason for maintaining this is to ensure sufficient insulin infusion time and to prevent insulin loss due to insulin reflux at the beginning of the infusion.

After the insulin injection is maintained for a certain period of time, electricity supplied to the suction unit 40 and the insulin injection unit 50 is cut off, the vacuum state is released, and the insulin is no longer injected into the skin.

10: casing 11: syringe cover
12: top cover 12a: on/off switch
20: syringe 21: guide
22: rail 30: cartridge
31: cylinder 31a: needle
32: piston 33: vibrator
34: vibrator cover 40: suction unit
41: suction tube 42: vacuum pump
43: pressure sensor 50: insulin injection unit
51: drive motor 52: screw shaft
53: piston pressure block 53a; live
60: peltier module 61: temperature sensor
62: Peltier element 63: conductive plate
64: heat sink 65: blower fan
70: control unit 80: end cap
81: air exhaust hole 82: charging hole
90: battery S: skin

Claims (10)

a casing 10; a syringe 20 installed inside the casing 10 and having a guide 21 installed at a lower end thereof; Accommodated in the syringe 20, a piston 32 is installed on the upper side, and a needle 31a surrounded by the guide 21 is provided on the lower side. When the piston 32 is pressed, the insulin stored therein is And the cartridge 30 is injected through the needle (31a); When the guide 21 is in close contact with the skin S, the skin S is punctured by the needle 31a by sucking air between the cartridge 30 and the syringe 20 so that the skin S is lifted. a suction unit 40 and; The insulin injection unit 50 for injecting insulin into the skin S by pressing the piston 32 of the cartridge 30 when the pressure of the air sucked in by the suction unit 40 is maintained within a predetermined range for a predetermined time. )Wow; an end cap 80 installed on the upper end of the casing 10 and having a plurality of air discharge holes 81 along the edge for discharging the air sucked by the suction unit 40 to the outside; and a battery 90 installed inside the casing 10 and supplying electricity to the suction unit 40 and the insulin injection unit 50;
The guide 21 is fixed to the end of the syringe 20 in a shape that increases in diameter toward the lower side, and the lower end is in close contact with the skin S, and the air between the syringe 20 and the cartridge 30 is sucked into the skin From the time (S) is lifted, it maintains its close contact until insulin is injected into the skin through the needle 31a,
The insulin injection unit 50 includes a driving motor 51; a screw shaft 52 connected to the motor shaft of the driving motor 51 and rotating together with the motor shaft; The inner circumferential surface of the piston pressing block 53 is spirally coupled to the screw shaft 52; Consisted of,
A pair of rails 22 are formed inside the syringe 20 , and a rib 53a fitted to the rail 22 is protruded from the outer surface of the piston pressing block 53 , and a screw shaft 52 is formed. ) is rotated, the rib (53a) advances along the rail (22) and the piston pressing block (53) advances, thereby pressing the piston (32) of the cartridge (30) Smart insulin capable of automatic injection injection device.
The method according to claim 1,
The suction unit 40 includes a suction tube 41, one end of which communicates with the space between the cartridge 30 and the syringe 20;
a vacuum pump 42 connected to the other end of the suction tube 41 to suck air in the space between the cartridge 30 and the syringe 20;
A pressure sensor (43) installed on the pipe line of the suction tube (41) or installed at the end of the suction tube (41) to measure the pressure of the inhaled air;
delete The method according to claim 1,
Automatic injection, characterized in that it further comprises a; Peltier module (60) for supplying cold or warm air to the syringe (20) to maintain the temperature inside the syringe (20) in which the cartridge (30) is accommodated within a set temperature range; Smart insulin injectors available.
5. The method according to claim 4,
The Peltier module 60 includes a temperature sensor 61 for measuring the temperature of the syringe 20;
a Peltier element 62 for generating cold air or warmth according to the value measured by the temperature sensor 61;
a conductive plate 63 that is interviewed on one side of the Peltier element 62 and is in contact with the syringe 20 to transmit cold or warm air;
a heat sink 64 that is interviewed on the other side of the Peltier element 62;
A smart insulin injection device capable of automatic injection, characterized in that it comprises; a blowing fan (65) that provides wind to the heat sink (64).
5. The method according to claim 4,
The suction unit 40, the insulin injection unit 50, and the control unit 70 electrically connected to the Peltier module 60; further comprising,
The control unit 70 automatically injects smart insulin injection device, characterized in that the information on the insulin injection amount, the number of insulin injections, and the syringe 20 temperature is displayed and transmitted to a smart phone connected through a communication network.
7. The method of claim 6,
Auto-injectable smart insulin injection device, characterized in that when the temperature of the syringe (20) is outside the set temperature range, instructing the controller (70) to operate the Peltier module (60) through the smart phone.
delete delete The method according to claim 1,
The cartridge 30 includes a cylinder 31 having a needle 31a at the bottom and storing insulin therein;
a piston (32) installed so as to move forward and backward in and out of the cylinder (31);
a vibrator 33 installed at the lower end of the piston 32 to vibrate the insulin;
A vibrator cover 34 that surrounds the outer surface of the vibrator 33 and advances together when the piston 32 advances to pressurize insulin; an automatic injectable smart insulin injection device comprising: a.

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