KR102521683B1 - Drug infusion apparatus and driving method thereof - Google Patents

Abstract

The present invention relates to a technology for reusing a drug in a device for injecting a drug into the skin in a spraying manner, comprising: a supply container for storing the drug and a collection container for storing the recovered drug; a supply pump for supplying the drug to the skin, a circulation pump for circulating the drug that has not been injected into the skin after being sprayed on the skin, and a recovery pump for recovering used drug among the drugs; a supply pipe and a supply valve connected to the supply pump, a circulation pipe and a circulation valve connected to the circulation pump, and a recovery pipe and a recovery valve connected to the recovery pump; and a drug injection device including a spray pipe for injecting the drug supplied through the supply pipe onto the skin and inhaling the drug that has not been injected into the skin after being injected, and a driving method thereof.

Description

Drug injection device and its driving method {DRUG INFUSION APPARATUS AND DRIVING METHOD THEREOF}

The present invention relates to a technology for reusing a drug in a device for injecting a drug into the skin in a spraying method, and more particularly, a drug injection device that is sprayed into the skin and is not injected into the skin, and the remaining drug can be recovered and reused. and a driving method thereof.

In recent years, interest in skin care has been increasing, and skin care is reported to be deeply related to wrinkle treatment. Conventional wrinkle treatment was possible only on a part of the skin, but recently, treatment equipment capable of smoothing out fine wrinkles on the cheeks, back of the hand, and neck has been developed. Such treatment equipment directly injects hyaluronic acid or the like into the skin like filler therapy, so the effect appears immediately after the procedure. In particular, patients undergoing filler therapy do not require special preparation and can quickly return to daily life with a short procedure time of about 20 minutes, so they are highly interested in those who do not have enough time.

Conventional filler therapy for skin care is to inject drugs by hand using a hypodermic syringe equipped with a manual plunger. Therefore, when using such a filler therapy, it is difficult to inject an appropriate amount of a drug (eg, skin nutrient) into the skin, and it is difficult to control the injection speed. Furthermore, there is a problem in that the pisisulja feels pain.

Recently, a drug injection device in which a drug is injected into the skin through sweat pores or pores without using a syringe has been developed.

1 is a block diagram of a drug injection device according to the prior art.

Referring to FIG. 1, the drug injection device 100 according to the prior art includes a supply container 110 storing drugs to be injected into the skin, and a recovery container storing drugs recovered without being injected into the skin after being injected into the skin ( 120), a supply pump (P11) for pumping to supply the drug stored in the supply container 110 to the skin side, and a pumping pump (P11) for pumping the recovered drug to the recovery container 120 side without being injected into the skin after being injected into the skin It includes a hand piece 130 equipped with a recovery pump P12 and a spray pipe 140 equipped with a spray nozzle to spray the drug supplied from the hand piece 130 to the skin.

The handpiece 130 drives the supply pump P11 and the recovery pump P12 according to the user's request. At this time, the spray pipe 130 rotates clockwise or counterclockwise by the hand piece 130, and reciprocates by the user.

In this state, the drug (vitamins or skin nutrients) stored in the supply container 110 is sprayed to the skin through the injection nozzle formed in the supply pipe 111, the supply pump (P11) and the injection pipe 140, so that some of the skin injected inside At this time, the user grips the handpiece 130 and moves in a zigzag manner as if scanning a skin area (eg, face) to be cared for in a state where the injection tube 140 is brought into contact with the skin.

At this time, after being injected into the skin, the drug that is not injected into the skin remains on the skin, which is recovered through the recovery pipe 121 and the recovery pump P12 and stored in the recovery container 120.

However, when a drug is injected into pores or pores of the skin using a drug injection device according to the prior art, due to the nature of the injection method through the hole, there are much more drugs that are not injected than drugs that are injected into the skin. All remaining drugs that have not been injected into the inside are to be discarded. Therefore, in order to reduce such cost loss, carbonated water that is cheap and of poor quality is being used.

Moreover, in the case of high-concentration peptide preparations or transdermal penetration-only drugs with excellent skin nutritional status or therapeutic effect, they inevitably form an expensive price range, and when they are injected into the skin using a drug injection device according to the prior art Since relatively many drugs are thrown away, there is a limit to obtaining the expected therapeutic effect, and from the user's point of view, there is a problem in that unnecessarily large costs have to be borne.

As a result, despite the development of drugs with excellent nutritional status or therapeutic effect on the skin, when they are injected into the skin using a drug injection device according to the prior art, there is a problem in that they are extremely limited due to technical limitations.

International Publication No. 2016-021768 (2016. 2. 11.) Korea Patent Registration No. 10-1760920 (2017. 7. 18.) Korean Patent Publication No. 10-2020-0027984 (2020. 3. 13.) Korea Patent Registration No. 10-2088830 (2020. 3. 9.)

The problem to be solved by the present invention is a drug that allows the drug to be used repeatedly within a set cycle without being injected into the skin after being injected into the skin in a device for injecting the drug into the skin in a spraying manner It relates to an injection device and a driving method thereof.

In order to achieve the above technical problem, the present invention includes a supply container for storing drugs and a recovery container for storing drugs to be recovered; a supply pump for supplying the drug to the skin, a circulation pump for circulating the drug that has not been injected after being sprayed onto the skin, and a recovery pump for recovering the used drug among the drugs; a supply pipe and a supply valve connected to the supply pump, a circulation pipe and a circulation valve connected to the circulation pump, and a recovery pipe and a recovery valve connected to the recovery pump; and an injection tube for injecting the drug supplied through the supply pipe onto the skin and inhaling the drug that has not been injected into the skin after being injected.

In addition, the supply pump and the supply valve, the circulation pump and the circulation valve are connected in a row between the supply tube and the injection pipe, respectively, to provide a drug injection device.

In addition, it is intended to provide a drug injection device in which the recovery pump and the recovery valve are connected in a row between the recovery cylinder and the injection pipe.

In addition, the drug is intended to provide a drug injection device containing at least one of skin nutrients and vitamins.

In addition, the injection pipe includes a spray nozzle installed on an inner wall to spray the drug supplied through the supply pipe to the skin; And to provide a drug injection device comprising a suction port for inhaling the drug that is not injected after being sprayed on the skin.

In addition, it is intended to provide a drug injection device in which the injection tube rotates when the drug is injected into the skin.

In order to achieve the above technical problem, in the present invention, the drug injection step of pumping the drug stored in the supply bottle and spraying it to the skin through the injection pipe; Reuse drug circulation step of recovering the remaining drug that is not injected into the skin after being injected into the skin and returning it to the supply container; and a used drug recovery step of recovering a used drug from among the drugs into a collection container.

In addition, it is intended to provide a driving method of a drug injection device in which a supply pipe, a supply pump, a supply valve, a circulation pipe, a circulation pump, a circulation valve, a recovery pipe, a recovery pump, and a recovery valve are connected in a row between the supply tube and the injection pipe.

In order to achieve the above technical problem, the present invention includes a supply container for storing drugs and a recovery container for storing drugs to be recovered; a supply pipe and a supply pump for supplying the drug to the skin, a recovery pipe and a recovery pump for recovering the drug that has been used among the drugs; a circulation pipe, a first circulation pump, and a second circulation pump connected to the supply pipe and the recovery pipe respectively to circulate and supply a certain amount of drug to the skin side; a supply valve for regulating the drug supplied from the supply pump, a recovery valve for regulating the drug recovered through the recovery pump, and a circulation valve for regulating the drug in the circulation pipe; An object of the present invention is to provide a drug injection device including an injection pipe for injecting the drug supplied through the supply pipe onto the skin and inhaling the drug that is not injected into the skin after the injection.

In addition, the supply pipe, the supply pump, the first circulation pump, and the supply valve are connected in a row between the supply pipe and the injection pipe, and the recovery pipe, the recovery pump, the second circulation pump, and the recovery valve are connected to the recovery passage. It is intended to provide a drug injection device that is connected in a line between the injection tubes, and the circulation tube and the circulation valve are connected in a line between the supply tube and the return tube.

In order to achieve the above technical problem, in the present invention, a supply container for storing the cleaning solution, a collection container for storing the collected cleaning solution, and an ampoule for storing the drug; a supply pipe and a washing liquid supply pump for supplying the washing liquid to the skin, a recovery pipe and a recovery pump for recovering the washing liquid sprayed on the skin; a drug supply pump for supplying the drug to the skin side and a circulation pump for pumping non-injected drug to the ampoule side after spraying the drug to the skin; a supply valve controlling the washing liquid supplied from the washing liquid supply pump, a recovery valve controlling the washing liquid recovered through the recovery pump, and a circulation valve controlling the drug circulated from the circulation pump to the ampoule; and an injection pipe for injecting the drug onto the skin and inhaling the drug that is not injected into the skin after the injection.

In order to achieve the above technical problem, in the present invention, a supply container for storing the skin washing fluid, a collection container for storing the collected skin washing fluid, a first ampoule for storing the first drug and a second ampoule for storing the second drug; A supply pipe and a skin washing liquid supply pump for supplying the skin washing liquid to the skin side, a recovery pipe and a skin washing liquid recovery pump for recovering the skin washing liquid sprayed on the skin; a first drug supply pump for supplying the first drug to the skin side and a first circulation pump for pumping the first drug that is not injected into the skin from among the first drugs to the side of the first amplifier; a second drug supply pump for supplying the second drug to the skin and a second circulation pump for pumping the second drug, which is not injected into the skin after being sprayed onto the skin, to the second ampoule; A skin wash liquid supply valve for controlling the skin wash liquid supplied from the skin wash liquid supply pump, a skin wash liquid recovery valve for controlling the skin wash liquid recovered through the skin wash liquid recovery pump, and circulating from the first circulation pump to the first ampoule a first circulation valve controlling a first drug and a second circulation valve controlling a second drug circulated from the second circulation pump to the second ampoule; and an injection pipe for injecting the second drug onto the skin and inhaling the second drug that has not been injected into the skin after the injection.

In addition, it is intended to provide a drug injection device in which a cleaning solution is included in the first drug and/or the second drug.

In addition, the pump and valve are intended to provide a drug injection device installed in the handpiece.

In addition, the handpiece is intended to provide a drug injection device including a control unit for controlling driving of the pump and the valve.

In addition, the supply pipe, the cleaning solution supply pump, and the supply valve are connected in a line between the supply pipe and the injection pipe, and the recovery pipe, the recovery pump, and the recovery valve are connected in a line between the recovery pipe and the injection pipe. , wherein the drug supply pump is connected between the ampoule and the supply pipe, and the circulation pump is connected between the ampoule and the recovery pipe.

In addition, the spray pipe includes a spray nozzle installed on an inner wall to spray the cleaning liquid or the drug to the skin; And it is intended to provide a drug injection device including a suction port for inhaling the cleaning liquid sprayed onto the skin and the drug that is not injected into the skin.

In order to achieve the above technical problem, the present invention includes a washing liquid spraying step of spraying the washing liquid stored in the supply container to the skin; A washing liquid recovery step of recovering the washing liquid mixed with foreign substances on the skin after being sprayed on the skin; A drug spraying step of spraying the drug stored in the ampoule to the skin; and a drug recovery step of recovering, after being injected into the skin, the remaining drug that is not injected into the skin into the ampoule.

In addition, a washing liquid supply pump, a supply pipe, and a supply valve are connected in a row between the supply pipe and the injection pipe, and a recovery pump, a recovery pipe, and a recovery valve are connected in a row between the supply pipe and the injection pipe, and the ampoule and the supply pipe It is intended to provide a drug injection device in which a drug supply pump is connected therebetween and a circulation pump is connected between the ampoule and the collection tube.

In order to achieve the above technical problem, in the present invention, the skin washing liquid spraying step of spraying the skin washing liquid stored in the supply container to the skin; Washing liquid recovery step of recovering the skin washing liquid mixed with the foreign matter of the skin after being sprayed on the skin; a first drug spraying step of spraying the first drug stored in the first ampoule to the skin; a first drug recovery step of recovering the first drug mixed with foreign substances after spraying on the skin with the first ampoule; a second drug spraying step of spraying a second drug stored in a second ampoule onto the skin; and a second drug recovery step of recovering the second drug remaining in the second ampoule after being sprayed onto the skin without being injected into the skin.

In addition, it is intended to provide a drug injection method in which a washing liquid is included in the first drug and/or the second drug.

In the present invention to achieve the above technical problem, the supply tube; an injection pipe through which the drug in the supply container is injected; a collection container for storing the drug to be discarded; a supply pipe connecting between the supply pipe and a spray nozzle of the injection pipe; a circulation pipe connecting the inlet of the injection pipe and the supply pipe; a recovery pipe connecting the suction port of the injection pipe and the collection container; a supply pump and a supply valve disposed along the supply pipe; a circulation pump and a circulation valve disposed along the circulation pipe; and a recovery pump and a recovery valve disposed along the recovery pipe.

In the present invention to achieve the above technical problem, the supply tube; an injection pipe through which the drug in the supply container is injected; a collection container for storing the drug to be discarded; a supply pipe connecting between the supply passage and the inlet of the circulation pipe; a recovery pipe connecting an outlet of the circulation pipe and the recovery container; a circulation pipe connecting between the injection nozzle of the injection pipe and the inlet of the injection pipe; a supply pump and a supply valve disposed along the supply pipe; a first circulation pump, a second circulation pump and a circulation valve disposed along the circulation pipe; It is intended to provide a drug injection device including a recovery pump and a recovery valve disposed along the recovery pipe.

In the present invention to achieve the above technical problem, the supply tube; recovery bin; injection pipe; ampoule bottle; a supply pipe connecting between the supply tube and the injection nozzle of the injection pipe; a recovery pipe that connects between the inlet of the injection pipe and the collection container; a drug supply pipe connecting the ampoule container and the injection nozzle of the injection pipe; a drug recovery pipe connecting the ampoule container and the suction port of the injection pipe; a supply pump and a supply valve disposed in the supply pipe; a recovery pump and a recovery valve disposed in the recovery pipe; a drug supply pump disposed in the drug supply pipe; and a drug recovery pump and a circulation valve disposed in the drug recovery pipe.

In addition, the first circulation pump is provided between the injection nozzle of the injection pipe and the inlet of the circulation pipe, the second circulation pump is provided between the inlet of the injection pipe and the outlet of the circulation pipe, and the circulation valve To provide a drug injection device provided between the inlet of the circulation pipe and the outlet of the circulation pipe.

In addition, it is intended to provide a drug injection device further comprising a; control unit for sending out control signals according to the cycle mode and the recovery mode state.

Further, in the circulation mode, the control signal opens the supply valve and the circulation valve, closes the recovery valve, drives the supply pump and the circulation pump, and stops driving the recovery pump. It is intended to provide a phosphorus drug injection device.

In addition, in the recovery mode state, the control signal opens the supply valve and the recovery valve, closes the circulation valve, drives the supply pump and the recovery pump, and stops driving the circulation pump. It is intended to provide a phosphorus drug injection device.

In addition, in the circulation mode, the control signal closes the supply valve and the recovery valve, opens the circulation valve, drives the first circulation pump and the second circulation pump, and operates the supply pump and the recovery valve. The pump is intended to provide a drug injecting device that is a signal to stop driving.

In addition, in the recovery mode state, the control preference opens the supply valve and the recovery valve, closes the circulation valve, and operates the first circulation pump, the second circulation pump, the supply pump, and the recovery pump. It is intended to provide a drug injection device that is a driving signal.

In addition, in the circulation mode, the control signal closes the supply valve and the recovery valve, opens the circulation valve, drives the drug supply pump, and stops driving the supply pump and the recovery pump. It is intended to provide a drug injection device that is a signal.

In addition, in the recovery mode, the control signal opens the supply valve and the recovery valve, closes the circulation valve, stops driving the drug supply pump, and drives the supply pump and the recovery pump. It is intended to provide a drug injection device that is a signal.

In the present invention to achieve the above technical problem, the step of opening the supply valve; If the current operating state is the circulation mode, the circulation valve is opened, the recovery valve is closed, the supply pump is driven, the circulation pump is driven, and the recovery pump is stopped; When the current operating state is the recovery mode, the circulation valve is closed, the recovery valve is opened, the supply pump is driven, the recovery pump is driven, and the circulation pump is stopped. We want to provide a driving method.

In order to achieve the above technical problem, in the present invention, when the current operating state is the circulation mode, the supply valve is closed, the recovery valve is closed, the circulation valve is open, the first circulation pump is driven, the second circulation pump is driven, and the supply pump is stopped driving, the recovery pump is stopped driving; When the current operating state is the recovery mode, the supply valve is open, the recovery valve is open, the circulation valve is closed, the first circulation pump is driven, the second circulation pump is driven, the supply pump is driven, It is intended to provide a driving method of a drug injection device including the step of driving the recovery pump.

In order to achieve the above technical problem, in the present invention, when the current operating state is the circulation mode, the supply valve is closed, the recovery valve is closed, the circulation valve is open, the drug drive pump is driven, the supply pump is stopped, and the recovery pump is driven stopping; If the current operating state is the recovery mode, opening the supply valve, opening the recovery valve, closing the circulation valve, stopping the driving of the drug drive pump, driving the supply pump, and driving the recovery pump; It is intended to provide a driving method of a drug injection device that includes.

According to the present invention, the drug injection device and its driving method have the following effects.

First, there is an effect of preventing expensive drugs from being wasted by recovering and reusing the remaining drugs that are not injected into the skin after being injected into the skin in a device for injecting drugs into the skin in a spraying method.

Second, there is an effect of optimizing the size of the product by simply implementing a configuration in which a device for injecting a drug into the skin by spraying is injected into the skin and then recovers and reuses the remaining drug without being injected into the skin. .

Third, in a device for injecting drugs into the skin by spraying, there is an effect of providing convenience to the user by simplifying the structure of recovering and reusing the remaining drugs that are not injected into the skin after being injected into the skin. .

Fourth, since the drug is sprayed to the skin several times while circulating, more drugs can be injected into the skin, so the treatment and improvement effects are significantly improved compared to the prior art.

1 is a block diagram of a drug injection device according to the prior art.
2 is a block diagram of a drug injection device according to a first embodiment of the present invention.
3 is a schematic diagram of the main body of the drug injection device according to the first embodiment.
4 is a view illustrating the use of the drug injection device according to the first embodiment of the present invention.
5 is a perspective view of a drug injection pipe;
6a and 6b are explanatory diagrams showing the principle of drug injection into pores according to the present invention.
7 is a flowchart of a method for driving a drug injection device according to a first embodiment of the present invention.
8 is a detailed flowchart of a driving method of the drug injection device according to the first embodiment of the present invention.
9 is a block diagram of a drug injection device according to a second embodiment of the present invention.
10 is a flowchart of a method of driving a drug injection device according to a second embodiment of the present invention.
11 is a block diagram of a drug injection device according to a third embodiment of the present invention.
12 is an exemplary view showing that an ampoule is mounted on a handpiece in a drug injection device according to a third embodiment of the present invention.
13 is a flowchart of a method for driving a drug injection device according to a third embodiment of the present invention.
14 is a detailed flowchart of a method of driving a drug injection device according to a third embodiment of the present invention.
15 is a block diagram of a drug injection device according to a fourth embodiment of the present invention.
16 is a flowchart of a method of driving a drug injection device according to a fourth embodiment of the present invention.
17 is a detailed flowchart of a method of driving a drug injection device according to a fourth embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Since the present invention can have various changes and various forms, specific embodiments are illustrated in the drawings and described in detail in the text. However, it should be understood that this is not intended to limit the present invention to the specific disclosed form, and includes all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In addition, terms such as “first” and “second” in the description of the present invention are used only for the purpose of distinguishing one component from another, and are not used to limit any meaning. And expressions in the singular number include plural expressions unless the context clearly indicates otherwise, and terms such as “include” or “having” refer to features, numbers, steps, operations, components, parts, or those described in the specification. It should be understood that it does not preclude the possibility of existence or addition of combinations.

Figure 2 is a block diagram of a drug injection device according to the first embodiment of the present invention, Figure 3 is a schematic diagram of the main body of the drug injection device according to the first embodiment of the present invention, Figure 4 is a first embodiment of the present invention 5 is a perspective view of a drug injection tube, and FIG. 6A (a) and (b) are explanatory views showing the principle of drug injection into pores according to the present invention.

Referring to FIGS. 2 to 6A, the drug injection device 200 according to the first embodiment of the present invention includes a supply container 210 in which a drug to be injected into the skin is stored, and is not injected into the skin after being injected into the skin. recovery container 220 in which the recovered drug is stored, supplying the drug stored in the supply container 210 so that it can be sprayed onto the skin and circulating the drug for reuse, injected into the skin after being sprayed onto the skin The handpiece 230 that controls the operation for recovering the untreated drug, respectively, and the injection tube 240 that sprays the drug supplied through the handpiece 230 to the skin while being rotated by the handpiece 230 include

The handpiece 230 is a supply pump (P21) for pumping the drug stored in the supply tube 210 to the side of the injection tube 240, and a drug that is not injected into the skin after being injected into the skin. ) a circulation pump (P22) for pumping to the side, a recovery pump (P23) for pumping the drug injected into the skin a certain number of times to the collection container (210), and a supply valve for opening and closing the supply pipe 211 to which the supply pump (P21) is connected ( V21), a circulation valve V22 for opening and closing the circulation pipe 212 to which the circulation pump P22 is connected, a recovery valve V23 for opening and closing the recovery pipe 221 to which the recovery pump P23 is connected, and the pump ( It includes a control unit 231 that controls the driving of the P21 to P23 and the opening and closing operations of the valves V21 to V23. As another embodiment, any one or more of the supply pump P21, the circulation pump P22, the recovery pump P23, and the controller 231 may be installed in the main body 200A. The type of each of the valves V21 to V23 is not particularly limited, and several types of valves may be used. For example, the valves V21 to V23 may be implemented as solenoid valves.

The supply container 210 is a container in which a drug to be sprayed onto the skin is stored. The components of the drug are not particularly limited, and may include therapeutic drugs containing components for skin treatment, or water to which vitamins or skin nutrients for supplying nutrients to the skin are added.

The recovery container 220 is a container in which drugs that are stored in the supply container 210 and then sprayed to the skin as many times as necessary through the injection pipe 240 are collected and stored.

The handpiece 230 controls the operation of supplying the drug stored in the supply container 210 so that it can be injected to the skin the required number of times through the injection tube 240 and the operation of the circulation mode in which the drug is circulated for reuse, It serves to control so that the drug that is injected the necessary number of times and is no longer used is recovered and stored in the collection container 220. Here, the 'circulation mode' may also be referred to as a 'feedback mode'. To this end, the handpiece 230 includes a supply pump (P21), a circulation pump (P22), a recovery pump (P23), a supply valve (V21), a circulation valve (V22), a recovery valve (V23), and a control unit 231. can do.

The supply pump P21 serves to pump the drug through the supply pipe 211 toward the injection pipe 240 so that the drug stored in the supply container 210 can be injected to the skin through the injection pipe 240. The circulation pump P22 serves to pump the drug through the circulation pipe 212 to the supply container 220 so that the drug that is not injected into the skin can be reused after being injected into the skin. The recovery pump P23 serves to pump the drug injected into the skin a certain number of times through the recovery pipe 221 toward the recovery container 220.

The supply valve (V21) is installed on the supply pipe 211 to which the supply pump (P21) is connected to open the supply pipe 211 when the drug stored in the supply tube 210 is pumped by the supply pump (P21), and other At the point of time, it serves to close the supply pipe 211. The circulation valve V22 is installed on the circulation pipe 212 to which the circulation pump P22 is connected, and opens the circulation pipe 212 when the drug that is not injected into the skin is pumped by the circulation pump P22, At other times, it acts as a closure. The recovery valve V23 is installed on the recovery pipe 221 to which the recovery pump P23 is connected, and opens the recovery tube 221 when the drug injected into the skin a certain number of times by the recovery pump P23 is pumped. At other times, it serves to close the return pipe 221.

The type of each of the valves V21 to V23 is not particularly limited, and several types of valves may be used. For example, the valves V21-V23 may be implemented as solenoid valves.

The controller 231 controls the supply pump P21, the circulation pump P22, and the recovery pump P23 to operate as described above, and the supply valve V21, the circulation valve V22, and the recovery valve V23 to operate as described above. It plays the role of controlling to open and close like.

The spray pipe 240 serves to spray the drug supplied through the hand piece 230 to the skin while being rotated by the hand piece 230 . To this end, the injection pipe 240 includes a push rod 242 installed vertically in the center and a pair of injection nozzles formed facing each other on the inner wall 241 of the injection pipe 240 around the push rod 242 ( 243A, 243B) may be provided.

The push rod 242 serves to expand the pores 601 or pores by pressing the skin where the drug is to be sprayed. Therefore, when the drug is injected into the skin using the push rod 242, the skin injection rate of the drug can be improved. However, the push bar 242 may be omitted if necessary.

In general, the size of a human sweat hole 601 is about 1/50 of a human hair, as shown in FIG. 6A(a). However, when lightly pressing the other end of the push bar 242 in contact with the skin as described above, the skin is depressed and stretched, and the pores 601 located around the push bar 242 expand as shown in (b) of FIG. 6A. This allows the drug to be injected more easily.

For reference, in the description of the present invention, it is necessary to understand that sweat pores are not necessarily interpreted as being limited to sweat glands, but include all of the various routes through which solutions such as drugs are injected into the skin through pores or skin. there is. For example, as shown in P1 to P4 in FIG. 6B, it means all paths through which the solution can be injected. In technical terms, sweat glands and pores are called transappendageal ducts, and the route through them is called the transappendageal route, and the route of solution movement through empty spaces, such as between cell tissues, is called transappendageal duct. It is called an epidermal route. In FIG. 6B, the first pathway P1 refers to a pathway penetrating between cells, the second pathway P2 refers to a pathway penetrating cells in the transverse direction, and the third pathway P3 refers to a pathway penetrating sweat glands. path, and the fourth path (P4) means a path penetrating the hair follicle.

The spray nozzles 243A and 243B serve to spray the drug supplied through the supply pipe 211 to the pores 601 or pores expanded as described above. Some of the sprayed drugs are injected into the dermal layer through the pores 601 or pores of the skin. Since the drug sprayed onto the skin by the spray nozzles 243A and 243B is instantaneously sprayed (eg, 200 m per second) as a drug stem thinner than the thickness of a hair, the subject does not feel any pain.

As shown in FIG. 4, the user holds the hand piece 230 with his hand and proceeds with the spray mode or recovery mode in a state where the lower part of the spray pipe 240 is in close contact with the skin (eg, face) of the person to be treated. At this time, the user may set the operation mode of the drug injection device 200 to an injection mode or a recovery mode. The injection mode or recovery mode may be set by the control unit 231 based on a signal input from the outside through an interface (not shown in the drawing) or automatically set according to time based on a pre-stored program. The recovery mode may be referred to as a simple supply mode. The operation of the injection mode and the recovery mode will be described below.

In the injection mode, the supply pump P21 and the circulation pump P22 are driven under the control of the controller 231, and the recovery pump P23 is stopped. Then, the supply valve V21 and the circulation valve V22 are opened by the control signals CTL1 and CTL2 output from the controller 231, and the recovery valve V23 is closed by the control signal CTL3. . Then, the injection pipe 240 is rotated clockwise or counterclockwise by the control unit 231 .

Therefore, the drug in the supply cylinder 210 is pumped by the supply pump P21, and the pumped drug is supplied to the injection pipe 240 through the supply pipe 211 and the supply valve V21. In addition, the drug supplied to the injection tube 240 through the above path is injected to the skin through a pair of injection nozzles 243A and 243B. At this time, the injection tube 240 is not maintained in a fixed state, but is driven in a zigzag manner as if scanning a skin area (eg, face) to be cared for by the user.

Among the drugs injected into the skin, some are injected into the skin and the rest remain on the surface of the skin. By the way, the drug remaining on the skin as described above is inhaled through the first inlet (not shown in the drawing) formed on the inner wall 241 of the injection pipe 240 by the driving of the circulation pump P22, and inhaled in this way. The drug is returned to the supply container 210 through the circulation pipe 212 and the circulation valve V22.

As described above, the injection mode in which drug injection and circulation operation are simultaneously performed may be continued for a time manually set by the user through a user interface or may be continued for a time previously set by the controller 231. As another example, the control unit 231 may check the turbidity of the drug through a turbidity sensor and continue the injection mode until the turbidity reaches a predetermined value or more. The turbidity sensor may sense the turbidity of the drug using infrared rays. For reference, the control unit 231 may change the operation mode of the drug injection device 200 to a recovery mode or a circulation mode based on the turbidity detection signal of the drug measured by the turbidity sensor.

At this time, the control unit 231 may control the driving of the supply pump P21 to adjust the strength or amount of the drug injected to the skin through the injection nozzles 243A and 243B of the injection pipe 240.

When the injection mode is completed, a recovery mode for recovering the drug in the supply container 210 is performed. At this time, according to the control of the control unit 231, the supply pump P21 and the recovery pump P23 are driven, and the driving of the circulation pump P22 is stopped. Then, the supply valve V21 and the recovery valve V23 are opened by the control signals CTL1 and CTL3 output from the controller 231, and the circulation valve V22 is closed by the control signal CTL2. .

Therefore, among the drugs injected into the skin through the supply pipe 211, the supply valve V21, and the injection nozzles 243A and 243B after being pumped from the supply container 210, the drug that is not injected into the skin is the recovery pump ( P23) is inhaled through the second inlet (not shown in the drawing) formed on the inner wall 241 of the injection pipe 240, and the drug inhaled in this way is recovered through the recovery pipe 221 and the recovery valve V23. It is stored in the collection container 220.

When the recovery mode is performed for a certain period of time or longer, all of the drugs stored in the supply tube 210 are recovered to the recovery tube 220 through the above-described path. Therefore, after the new drug is filled in the supply container 210, the injection mode or the recovery mode may be performed as described above.

In the description of FIG. 2, the supply tube 210, the recovery tube 220, the supply tube 211, the circulation tube 212, and the recovery tube 221 are installed outside the handpiece 230 as an example. As another example, they may be installed inside the handpiece 230.

In the above description, it has been described that the recovery mode is performed after the injection mode is performed as an example, but as another embodiment, the injection mode and the recovery mode may be performed regardless of order or alternately.

In this way, when the drug is sprayed and injected into the skin using the drug injection device according to the first embodiment of the present invention, the drug is injected in a method of re-injecting while circulating for a certain number of times or for a certain time, rather than stopping as a single injection. More drugs can be injected into the skin, thereby reducing costs and improving treatment.

Meanwhile, FIG. 7 is a flowchart of a method for driving the drug injection device according to the first embodiment of the present invention, and FIG. 8 is a detailed flowchart of the method for driving the drug injection device.

Referring to FIG. 7 , the driving method of the drug injection device according to the present invention includes a drug injection step of pumping and spraying the drug stored in the supply container to the skin (S71); Reuse drug circulation step (S72) of recovering and returning the remaining drug to the supply container for reuse after being injected into the skin without being injected into the skin; and a used drug recovery step (S73) of recovering the used drug from among the drugs into a collection container.

Each step (S71-S73) of FIG. 7 will be described in detail with reference to FIG. 8.

In the drug injection step (S71), the supply pump (P21) is driven according to the control of the control unit 231, and the supply valve (V21) is opened. Then, the injection pipe 240 is rotated clockwise or counterclockwise by the control unit 231 . Therefore, the drug in the supply cylinder 210 is pumped by the supply pump P21, and the pumped drug is supplied to the injection pipe 240 through the supply pipe 211 and the supply valve V21. In addition, the drug supplied to the injection tube 240 through the above path is injected to the skin through a pair of injection nozzles 243A and 243B. At this time, when the pores 601 or pores are expanded by pressing the skin of the area where the drug is to be sprayed with the push rod 242, the injected drug is injected into the expanded pores 601 or pores, thereby improving the skin injection rate of the drug. can make it

The reuse drug circulation step (S72) is a circulation mode performed to reuse the drug sprayed onto the skin by the drug injection step (S41), and preferably proceeds simultaneously with the drug injection step (S41). At this time, according to the control of the controller 231, the circulation pump P22 is driven and the circulation valve V22 is opened. Therefore, among the drugs injected into the skin by the injection mode, the drugs remaining on the surface of the skin because they are not injected into the skin are formed on the inner wall 241 of the injection pipe 240 by driving the circulation pump P22. The drug is sucked through the first inlet, and the drug sucked in is returned to the supply container 210 through the circulation pipe 212 and the circulation valve V22. Such reused drug circulation operation is performed concurrently while the drug injection operation is in progress.

The spent drug recovery step (S73) is a recovery mode for recovering the drug remaining on the skin surface without being injected into the skin although sprayed on the skin in the circulation mode. ) and the recovery pump P23 are driven, and the driving of the circulation pump P22 is stopped. Then, according to the control of the controller 231, the supply valve V21 and the recovery valve V23 are opened, and the circulation valve V22 is closed. Therefore, among the drugs injected into the skin through the supply pipe 211, the supply valve V21, and the injection nozzles 243A and 243B after being pumped from the supply container 210, the drug that is not injected into the skin is the recovery pump ( P23), the drug is inhaled through the second inlet formed on the inner wall 241 of the injection pipe 240, and the drug inhaled in this way is recovered through the recovery pipe 221 and the recovery valve V23, and the recovery cylinder 220 ) is stored in The used drug recovery step (S43) may proceed until all of the drugs stored in the supply container 210 are recovered to the collection container 220.

The drug dispensing step (S71), reused drug circulation step (S72), and used drug recovery step (S73) may be performed in any order or overlapped.

Meanwhile, FIG. 9 is a block diagram of a drug injection device according to a second embodiment of the present invention.

Referring to FIG. 9, the drug injection device 900 according to the second embodiment of the present invention includes a supply container 910 in which a drug to be injected into the skin is stored, and a drug that is not injected into the skin after being injected into the skin A collection container 920 that is recovered and stored, an operation of supplying the drug stored in the supply container 910 to the skin and an operation of partially circulating the drug for reuse, and a drug that is not injected into the skin after being sprayed on the skin It includes a hand piece 930 that controls the operation of collecting the drug, respectively, and an injection pipe 940 that sprays the drug supplied through the hand piece 930 to the skin while being rotated by the hand piece 930.

The handpiece 930 pumps the drug stored in the supply tube 910 to the injection pipe 940, and the drug supplied through the supply pump P91 is supplied through the injection pipe 940. ) side, the first circulation pump (P92) pumping to the skin, and the second circulation pump pumping so that the drug remaining on the skin can be reused or recovered without being injected into the skin after being injected into the skin by the injection pipe 940 (P93), a recovery pump (P94) for pumping the drug recovered through the second circulation pump (P93) to the recovery container (920) after circulation is completed for reuse, the supply pump (P91) and the first circulation pump A supply valve (V91) for opening and closing the supply pipe 911 connected between (P92), a recovery valve (V92) for opening and closing the recovery pipe 921 connected between the second circulation pump (P93) and the recovery pump (P94), and a supply pump A circulation valve (V93) for opening and closing the circulation pipe 931 connected between the supply valve (V91) connected to the rear end of (P91) and the recovery valve (V92) connected to the rear end of the recovery valve (V92) and the pumps (P51-P54) and a controller 932 controlling the operation of the valves V51-V53. As another embodiment, at least one of the supply pump P91, the first circulation pump P92, the second circulation pump P93, the recovery pump P94, and the control unit 932 may be installed in the main body 900A. can The type of each of the valves V91 to V93 is not particularly limited, and several types of valves may be used. For example, the valves V91 to V93 may be implemented as solenoid valves.

When comparing the second embodiment of FIG. 9 with the first embodiment of FIG. 2, in the first embodiment, the entire drug stored in the supply container 210 is circulated and reused for a certain time or number of times, compared to the second embodiment In an example, after spraying the drug stored in the supply container 910 to the skin, the drug that has not been injected into the skin is immediately returned to the recovery container 920, or some of the drugs stored in the supply container 910 is transferred to the first circulation pump. (P92), the circulation pipe 931, the second circulation pump (P93), the circulation pipe 931, the circulation valve (V93) and the circulation pipe (931) through a circulation loop consisting of circulation and reuse. The drug reused as described above is recovered to the collection container 920. The operation of such a difference is described as follows.

First, in the recovery mode, the supply valve V91 and the recovery valve V92 are opened by the control signals CTL1 and CTL2 output from the controller 932, and the circulation valve V93 is opened by the control signal CTL3. is closed Also, the supply pump P91, the first circulation pump P92, the second circulation pump P93, and the recovery pump P94 are driven.

Accordingly, the drug in the supply cylinder 910 is pumped by the supply pump P91, and the pumped drug is pumped through the supply pipe 911, the supply valve V91, the circulation pipe 931 and the first circulation pump P92. It is supplied to the injection pipe 940 through. Then, the drug supplied to the injection pipe 940 through the above path is injected to the skin through a pair of injection nozzles.

In this way, after being injected into the skin, the drug remaining on the skin without being injected into the skin is inhaled through the suction port formed on the inner wall of the injection pipe 940 by the driving of the second circulation pump (P93), and is inhaled in this way. The drug is recovered to the recovery cylinder 920 through the recovery valve V92 and the recovery pump P94.

In the circulation mode, the supply valve V91 and the recovery valve V92 are closed by the control signals CTL1 and CTL2 output from the controller 932, and the circulation valve V93 is opened by the control signal CTL3. do. Then, the first circulation pump P92 and the second circulation pump P93 are driven, and the supply pump P91 and recovery pump P94 are stopped.

Accordingly, the drug is passed through a circulation loop composed of the first circulation pump (P92), the circulation pipe (931), the second circulation pump (P93), the circulation pipe (931), the circulation valve (V93), and the circulation pipe (931). As this is circulated, the operation of spraying to the skin is repeatedly performed.

When a certain time elapses from this, the driving of the supply pump P91 is stopped according to the control of the control unit 932, and the supply valve V91 and the circulation valve V93 are closed. Then, the first circulation pump (P92), the second circulation pump (P93), and the recovery pump (P94) are driven, and the recovery valve (V92) is opened. Accordingly, the drug remaining on the skin without being injected into the skin after being injected into the skin while being circulated through the circulation loop is recovered to the recovery bottle 920 through the recovery valve V92.

The recovery mode and the circulation mode as described above may be performed in any order or alternately.

In this way, when the drug is sprayed and injected into the skin using the drug injection device according to the second embodiment of the present invention, the drug is not stopped as a single injection, but re-injected while circulating a certain amount of drug for a certain number of times or for a certain time Since it is injected in this way, it is possible to inject more drugs into the skin, thereby reducing costs and improving treatment.

Meanwhile, FIG. 10 is a flowchart of a method of driving a drug injection device according to a second embodiment of the present invention.

Referring to FIG. 10, the driving method of the drug injection device according to the present invention is a recovery mode execution step (S1001) of injecting the drug stored in the supply container onto the skin and recovering the drug that has not been injected into the skin from among the injected drugs into the recovery container. -S1004) and a circulation mode performing step (S1005-S1008) of supplying the drug from the supply tube to the circulation loop and then spraying the drug stored in the circulation loop to the skin while circulating.

In the recovery mode performing steps (S1001 to S1004), the supply valve V91 and the recovery valve V92 are opened and the circulation valve V93 is closed according to the control of the control unit. Also, the supply pump P91, the first circulation pump P92, the second circulation pump P93, and the recovery pump P94 are driven.

Accordingly, the drug in the supply cylinder 910 is pumped by the supply pump P91, and the pumped drug is pumped through the supply pipe 911, the supply valve V91, the circulation pipe 931 and the first circulation pump P92. It is supplied to the injection pipe 940 through. Then, the drug supplied to the injection pipe 940 through the above path is injected to the skin through a pair of injection nozzles.

In this way, after being injected into the skin, the drug remaining on the skin without being injected into the skin is inhaled through the suction port formed on the inner wall of the injection pipe 940 by the driving of the second circulation pump (P93), and is inhaled in this way. The drug is recovered to the recovery cylinder 920 through the recovery valve V92 and the recovery pump P94.

In the circulation mode performing steps (S1005-S1008), the supply valve V91 and the recovery valve V92 are closed and the circulation valve V93 is opened according to the control of the control unit 932. Then, the first circulation pump P92 and the second circulation pump P93 are driven, and the supply pump P91 and recovery pump P94 are stopped.

Accordingly, the drug is passed through a circulation loop composed of the first circulation pump (P92), the circulation pipe (931), the second circulation pump (P93), the circulation pipe (931), the circulation valve (V93), and the circulation pipe (931). As this is circulated, the operation of spraying to the skin is repeatedly performed.

Meanwhile, FIG. 11 is a block diagram of a drug injection device according to a third embodiment of the present invention, and FIG. 12 is an exemplary view showing an ampoule mounted on a handpiece.

11 and 12, the drug injection device 1100 according to the third embodiment of the present invention includes a supply container 1110 in which a cleaning solution to clean the skin is stored, and a number in which the cleaning solution sprayed on the skin is collected and stored. A container 1120, an ampoule 1130 containing a drug to be sprayed on the skin, an operation for spraying the washing liquid stored in the supply container 1110 to the skin, an operation for recovering the washing liquid sprayed on the skin, and the above The handpiece 1140 controls the operation for reusing the drug contained in the ampoule 1130, and the handpiece 1140 rotates, spraying the cleaning solution and drug supplied through the handpiece 1140 to the skin It includes an injection pipe 1150 to

The handpiece 1140 includes a washing liquid supply pump (P111) that pumps the washing liquid stored in the supply container 1110 toward the spray pipe 1150, and a recovery pump (P112) that pumps the washing liquid sprayed onto the skin toward the recovery container 1120. ), a drug supply pump (P113) for pumping the drug stored in the ampoule 1130 to the side of the injection tube 1150, pumping from the ampoule 1130 and spraying the drug to the skin to the side of the ampoule 1130 so that it can be reused Pumping A circulation pump (P114), a supply valve (V111) for opening and closing the supply pipe (1111) to which the cleaning solution supply pump (P111) is connected, a recovery valve (V112) for opening and closing the recovery pipe (1121) to which the recovery pump (P112) is connected, A circulation valve V113 for opening and closing the circulation pipe to which the circulation pump P114 is connected and a control unit 1141 for controlling driving of the pumps P111-P114 and opening and closing operations of the valves V111-V113. As another embodiment, any one or more of the cleaning liquid supply pump P111, the recovery pump P112, the drug supply pump P113, and the circulation pump P114 may be installed in the main body 1100A. The type of each of the valves V111 to V113 is not particularly limited, and several types of valves may be used. For example, the valves V111 to V113 may be implemented as solenoid valves.

The supply container 1110 is a container in which a washing liquid for washing the skin is stored. The type of the cleaning liquid is not particularly limited and may include components applicable to the skin. For example, the cleaning liquid may include any one of ethanol, glycolic acid, and Alha Hydroxy-Acid (AHA).

The collection container 1120 is a container in which the washing liquid supplied from the supply container 1110 and sprayed on the skin is collected and stored.

The ampoule 1130 is an airtight container containing a drug to be sprayed onto the skin after the skin is washed with the cleaning solution. The type of drug is not particularly limited. The drug may include water to which drugs for skin treatment or skin nutrients for supplying nutrients are added.

The handpiece 1140 controls the operation of supplying the cleaning liquid stored in the supply container 1110 to be sprayed to the skin and the operation of recovering the sprayed cleaning liquid to the skin, and then dispensing the drug contained in the ampoule 630. It plays a role in controlling the circulation operation so that it can be reused while being circulated. To this end, the handpiece 1140 includes a cleaning liquid supply pump (P111), a recovery pump (P112), a drug supply pump (P113), a circulation pump (P114), a supply valve (V111), a recovery valve (V112), a circulation valve ( V113) and a control unit 1141.

The washing liquid supply pump P111 serves to pump the washing liquid stored in the supply pipe 1110 to the injection pipe 1150 through the supply pipe 1111 to spray the skin through the injection pipe 1150 to clean the skin. . The recovery pump P112 serves to pump the washing liquid sprayed onto the skin through the recovery pipe 1121 toward the recovery container 1120. The drug supply pump P113 serves to pump the drug stored in the ampoule 1130 through the supply pipe 1111 toward the injection pipe 1150. The circulation pump P114 serves to pump the drug injected into the skin through the injection pipe 1150 to the ampoule 1130 so that it can be reused.

The supply valve V111 is installed on the supply pipe 1111 to which the supply pump P111 is connected and opens the supply pipe 1111 when the washing liquid stored in the supply container 1110 is pumped by the washing liquid supply pump P111, At other times, it serves to close the supply pipe 1111. The recovery valve (V112) is installed on the recovery pipe 1121 to which the recovery pump (P112) is connected, and opens the recovery tube 1121 when the washing liquid sprayed on the skin is pumped by the recovery pump (P112). At this point, it serves to close the return pipe 1121. The circulation valve V113 opens the circulation pipe to which the circulation pump P114 is connected when the drug injected into the skin is pumped by the circulation pump P114, and serves to close the circulation pipe at other times.

The type of each of the valves V111 to V113 is not particularly limited, and several types of valves may be used. For example, the valves V111-V113 may be implemented as solenoid valves.

The controller 1141 controls the cleaning liquid supply pump P111, the recovery pump P112, the drug supply pump P113, and the circulation pump P114 to perform the pumping operation as described above, and the supply valve V111 and the recovery valve V112. ) and the circulation valve V113 to open and close as described above.

The spray pipe 1150 is pumped from the supply tube 1110 while being rotated by the hand piece 1140 and sprays the cleaning liquid supplied through the supply tube 1111 to the skin. Foreign substances or dead skin on the skin are cleaned by the sprayed cleaning solution.

Thereafter, the spray pipe 1150 sprays the drug pumped and supplied from the ampoule 1130 onto the skin. At this time, the drug injected into the skin is injected instantaneously (eg, 200 m per second) with a drug stem thinner than the thickness of a hair, so the subject does not feel any pain.

To this end, the injection pipe 1150 may include a push rod 1151 installed vertically in the center and a pair of injection nozzles formed to face each other on the inner wall of the injection pipe 1150 around the push rod 1151. there is. The push rod 1151 serves to expand pores or pores by pressing the skin where the drug is to be sprayed. The drug injected as described above through the injection nozzle is injected into the dermal layer of the skin through the enlarged pores or pores as described above. Therefore, when using the push rod 1151, the skin injection rate of the drug can be improved. However, the push bar 1151 may be omitted if necessary.

Compared to the drug injection device 200 of FIG. 2, the drug injection device 1100 has a difference in that a cleaning process of spraying a cleaning liquid onto the skin to clean the skin is added before spraying the drug onto the skin. The operation of the drug injection device 1100 will be described as follows.

The cleaning mode and drug dispensing mode for the operation of the drug injection device 1100 are set based on a signal input from the outside through an interface (not shown in the drawing) by the control unit 1141 or set automatically over time based on a pre-stored program. can be set to

In the cleaning mode, the cleaning liquid supply pump P111 and the recovery pump P112 are driven under the control of the control unit 1141, and the drug supply pump P113 and the circulation pump P114 are stopped. Then, the supply valve V111 and the recovery valve V112 are opened by the control signals CTL1 and CTL2 output from the control unit 1141, and the circulation valve V113 is closed by the control signal CTL3. .

Therefore, the washing liquid is pumped from the supply cylinder 1110 by the washing liquid supply pump P111, and the pumped washing liquid is supplied to the injection pipe 1150 through the supply pipe 1111. And, the washing liquid supplied to the spray pipe 1150 through the above path is sprayed to the skin through a pair of spray nozzles. At this time, the injection tube 1150 is not maintained in a fixed state, but is driven in a zigzag manner as if scanning a skin area (eg, face) to be cared for by the user.

Accordingly, keratin or foreign substances are separated from the skin and placed on the skin in a state mixed with the washing liquid. Such washing liquid and foreign matter are sucked in by the recovery pump (P112) through a suction port formed on the inner wall of the injection pipe (1150) and then recovered in the recovery cylinder (1120) through the recovery valve (V112) and the recovery pipe (1121). do. In this way, the operation of spraying and recovering the washing liquid may be continued until the target skin area is completely cleaned.

After the cleaning mode as described above is performed, the drug dispensing mode proceeds. At this time, according to the control of the control unit 1141, the supply pump P111 and the recovery pump P112 are stopped, and the drug supply pump P113 and the circulation pump P114 are driven. Then, the supply valve V111 and the recovery valve V112 are closed by the control signals CTL1 and CTL2 output from the control unit 1141, and the circulation valve V113 is opened by the control signal CTL3. .

Therefore, the drug stored in the ampoule 1130 is pumped by driving the drug supply pump P113 and supplied to the injection pipe 1150 through the supply pipe 1111. The drug supplied in this way is injected to the skin through a pair of injection nozzles formed opposite to each other on the inner wall of the injection tube 1150.

Among the injected drugs, those not injected into the skin remain on the skin, which are pumped by the circulation pump P114 and returned to the ampoule 1130 through the circulation pipe and circulation valve V113. Such a drug injection mode may last for a time manually set by the user through a user interface or for a time previously set by the controller 1141. As another example, the control unit 1141 may check the turbidity of the drug through a turbidity sensor and continue the injection mode until the turbidity reaches a predetermined value or more. The turbidity sensor may sense the turbidity of the drug using infrared rays. However, since the skin is cleaned by the washing mode, the turbidity is maintained below a certain value until the drug stored in the ampoule 1130 is circulated and injected into the skin as described above.

In the description of FIG. 11, the supply tube 1110, the recovery tube 1120, the supply tube 1111, and the recovery tube 1121 are installed outside the handpiece 1140 as an example, but as another example, they are hand It may be installed inside the piece 1140.

In this way, in the case of spraying and injecting a drug into the skin using the drug injection device according to the third embodiment of the present invention, the skin is washed using a cleaning solution and then injected in such a way that the drug contained in the ampoule is circulated and re-injected. More drugs can be injected into the skin, thereby reducing costs and improving treatment.

Meanwhile, FIG. 13 is a flowchart of a method of driving a drug injection device according to a third embodiment of the present invention, and FIG. 14 is a detailed flowchart of a method of driving a drug injection device according to a third embodiment of the present invention.

Referring to FIG. 13, the driving method of the drug injection device according to the present invention includes a washing liquid spraying step of spraying the washing liquid stored in the supply container to the skin (S1301); A washing liquid recovery step (S1302) of recovering the washing liquid mixed with foreign substances on the skin after being sprayed on the skin; A drug spraying step of spraying the drug stored in the ampoule to the skin (S1304); and a drug recovery step (S1304) of recovering the remaining drug that is not injected into the skin after being sprayed onto the skin into the ampoule.

Each step (S1301-S1304) of FIG. 13 will be described in detail with reference to FIG. 14.

In the washing liquid injection step (S1301), the washing liquid supply pump P111 is driven according to the control of the control unit 1141, and the supply valve V111 is opened. Accordingly, the washing liquid is pumped from the supply cylinder 1110 by the washing liquid supply pump P111, supplied to the injection pipe 1150 through the supply pipe 1111, and then sprayed to the skin through a pair of injection nozzles.

In the washing liquid recovery step (S1302), the recovery pump P112 is driven and the recovery valve V112 is opened under the control of the control unit 1141. Accordingly, after the washing liquid sprayed on the skin, keratin or foreign substances separated from the skin are sucked through the suction port formed on the inner wall of the spray pipe 1150 by the recovery pump P112, the recovery valve V112 and the recovery pipe ( 1121 is returned to the collection container 1120.

In the drug injection step (S1103), the drug supply pump (P113) is driven under the control of the controller 1141. Accordingly, the drug stored in the ampoule 1130 is pumped and supplied to the injection pipe 1150 through the supply pipe 1111, and then applied to the skin through a pair of injection nozzles formed opposite to each other on the inner wall of the injection pipe 1150. is sprayed

In the drug recovery step (S1104), the circulation pump (P114) is driven and the circulation valve (V113) is opened according to the control of the controller 1141. Accordingly, among the drugs injected into the skin in the previous step (S1103), the drug remaining on the skin without being injected into the skin is pumped by the circulation pump (P114) and passed through the circulation pipe and circulation valve (V113) to the ampoule (1130). ) is returned.

Each of the above steps (S1301 to S1304) can be freely performed regardless of the order. For example, the washing liquid spraying step ( S1301 ) and the washing liquid recovering step ( S1302 ) may be performed simultaneously. In addition, the drug injection step (S1303) and the drug recovery step (S1304) may also proceed simultaneously.

Meanwhile, FIG. 15 is a block diagram of a drug injection device according to a fourth embodiment of the present invention.

Referring to FIG. 15, the drug injection device 1500 according to the fourth embodiment of the present invention includes a supply container 1510 storing a skin washing fluid to clean the skin, and a recovery container collecting and storing the skin washing fluid sprayed on the skin. 1520, a first ampoule 1531 containing a first drug to clean pores of the skin, a second ampoule 1532 containing a second drug to be sprayed on the skin, and the supply container 1510 Hands respectively controlling the operation of spraying the stored skin cleaning solution to the skin, the operation of collecting the sprayed skin cleaning solution and the first drug on the skin, and the operation of reusing the second drug contained in the second ampoule 1532. It includes a piece 1540 and a spray pipe 1550 for spraying the skin cleaning liquid, the pore cleaning liquid, and the drug supplied through the hand piece 1540 to the skin while being rotated by the hand piece 1540.

The handpiece 1540 includes a skin washing liquid supply pump (P151) that pumps the washing liquid stored in the supply container 1110 toward the spray pipe 1550, and a skin washing liquid that pumps the skin washing liquid sprayed onto the skin toward the collection container 1520. A recovery pump (P152), a first drug supply pump (P153) for pumping the first drug stored in the first ampoule 1531 to the injection pipe 1550, and a drug that is pumped from the first ampoule 1531 and sprayed to the skin. A first circulation pump (P154) that pumps the first drug to the side of the first ampoule (1531) so that it can be reused, and a second drug supply pump (P154) that pumps the second drug stored in the second ampoule (1532) to the side of the injection pipe (1550) P155), a second circulation pump (P156) for pumping the second drug injected from the second ampoule 1532 to the second ampoule 1532 so that it can be reused, and the skin cleansing liquid supply pump (P151) The skin washing liquid supply valve (V151) opens and closes the supply pipe 1511 connected to the skin wash liquid supply valve (V151), the skin wash liquid recovery valve (V152) opens and closes the recovery pipe 1521 to which the skin wash liquid recovery pump (P152) is connected, and the first circulation pump (P154) ) is connected to the first circulation valve (V153), the second circulation valve (V154) to open and close the second circulation pipe to which the second circulation pump (P156) is connected, and the pumps (P151-P156) and a controller 1541 that controls the operation of the valves V151 to V154. As another embodiment, the skin washing liquid supply pump (P151), the skin washing liquid recovery pump (P152), the first drug supply pump (P153), the first circulation pump (P154), the second drug supply pump (P155) and the second Any one or more of the circulation pumps P156 may be installed in the main body 1500A. In the case of the skin washing liquid recovery pump (P152), when the valve system is shared, the circulation mode of the first drug and the second drug can be shared. The type of each of the valves V151 to V154 is not particularly limited, and several types of valves may be used. For example, the valves V151 to V154 may be implemented as solenoid valves.

When comparing the fourth embodiment of FIG. 15 with the third embodiment of FIG. 11, immediately after washing the skin with the skin washing liquid stored in the supply container 1510, the second drug contained in the second ampoule 1532 is applied to the skin. There is a difference in that the second drug contained in the second ampoule 1532 is sprayed onto the skin after washing the pores of the skin with the first drug contained in the first ampoule 1531, rather than sprayed on the skin. The operation of difference in washing the pores of the skin with the first drug contained in the first ampoule 1531 will be described as follows.

Even if the skin is washed with the skin washing liquid stored in the supply container 1510, foreign substances in pores, such as fat components, are not completely cleaned. Therefore, foreign substances such as pores are cleaned using the first drug contained in the first ampoule 1531 as described below. The type of the first drug is not particularly limited. As an example of the first drug, a washing liquid having a weak acidity (pH 5.5) may be used. The type of the second drug is not particularly limited. As examples of the second drug, vitamins or skin nutrients may be used.

In the skin cleansing mode using the first ampoule 1531, the first drug supply pump P153 and the first circulation pump P154 are driven under the control of the controller 1541, and the remaining pumps P151, P152, P155, and P156 ) are stopped. In addition, the first circulation valve V153 is opened by the control signal CTL3 output from the control unit 1541, and the remaining valves V151, V152 and V154 are closed by the control signals CTL1, CTL2 and CTL4. do.

Accordingly, the first drug stored in the first ampoule 1531 is pumped by driving the first drug supply pump P153 and supplied to the injection pipe 1550 through the supply pipe 1511 . The first drug supplied in this way is injected to the skin through a pair of injection nozzles formed to face each other on the inner wall of the injection tube 1150.

Foreign substances (eg, fat components) in the pores and the like are washed by the first drug sprayed in this way. After being sprayed with the foreign substance, the first drug, which remains injected into the pores or the like or remains on the surface of the skin, is pumped by the first circulation pump (P154) and passes through the first circulation pipe and the first circulation valve (V153) to the first drug. It is returned to the ampoule 1531. Such a skin washing mode may be continued for a time manually set by the user through a user interface or may be continued for a time previously set by the controller 1541 . As another example, the control unit 1541 may check the turbidity of the drug through a turbidity sensor and continue the injection mode until the turbidity reaches a predetermined value or more. The turbidity sensor may sense the turbidity of the drug using infrared rays.

After the skin washing mode described above is performed, a second drug spraying mode in which the second drug contained in the second ampoule 1532 is sprayed onto the skin may proceed.

In this way, when the drug is sprayed and injected into the skin using the drug injection device according to the fourth embodiment of the present invention, the surface of the skin is washed using a cleaning solution and foreign substances in pores are cleaned using the first drug. Since the second drug contained in the second ampoule is circulated and re-injected into the skin, more drugs can be injected into the skin, thereby reducing costs and improving treatment. .

As another embodiment, a larger number of ampoules may be added to the drug injection device 1500 of FIG. 15, and the skin may be cleansed or injected into the skin with drugs from the ampoules through the above route.

Meanwhile, FIG. 16 is a flowchart of a method of driving a drug injection device according to a fourth embodiment of the present invention, and FIG. 17 is a detailed flowchart of a method of driving a drug injection device according to a fourth embodiment of the present invention.

Referring to FIG. 16, the driving method of the drug injection device according to the present invention includes a skin washing liquid injection step of spraying the skin washing liquid stored in the supply container to the skin (S1601); Skin washing liquid recovery step of recovering the skin washing liquid mixed with foreign substances on the skin after being sprayed on the skin (S1602); a first drug spraying step of spraying the first drug stored in the first ampoule onto the skin (S1603); a first drug recovery step (S1604) of recovering the first drug mixed with foreign substances in pores after being sprayed onto the skin with the first ampoule; a second drug spraying step of spraying the second drug stored in the second ampoule onto the skin (S1605); and a second drug recovery step (S1606) of recovering the second drug that remains after being sprayed onto the skin and not injected into the skin through the second ampoule.

Here, the type of the first drug is not particularly limited. As an example of the first drug, a washing liquid having a weak acidity (pH 5.5) may be used. The type of the second drug is not particularly limited. As examples of the second drug, vitamins or skin nutrients may be used.

Each step (S1601-S1605) of FIG. 16 will be described in detail with reference to FIG. 17.

In the skin washing liquid injection step (S1601), the skin washing liquid supply pump (P151) is driven according to the control of the controller 1541, and the skin washing liquid supply valve (V151) is opened. Accordingly, the skin washing liquid is pumped from the supply tube 1510 by the skin washing liquid supply pump P151, supplied to the injection pipe 1550 through the supply pipe 1511, and then sprayed to the skin through a pair of injection nozzles.

In the skin washing liquid recovery step (S1602), the skin washing liquid recovery pump (P152) is driven according to the control of the controller 1541, and the skin washing liquid recovery valve (V152) is opened. Accordingly, after the washing liquid sprayed on the skin, dead skin cells or foreign substances separated from the skin are sucked through the suction port formed on the inner wall of the spray pipe 1550 by the recovery pump P152, the recovery valve V112 and the recovery pipe ( 1521 is returned to the collection container 1120.

In the first drug dispensing step (S1603), the first drug supply pump P153 is driven under the control of the controller 1541. Accordingly, after the first drug stored in the first ampoule 1130 is pumped and supplied to the injection pipe 1550 through the supply pipe 1511, a pair of injection nozzles formed opposite to each other on the inner wall of the injection pipe 1550 sprayed onto the skin through

In the first drug recovery step (S1604), the first circulation pump (P154) is driven and the first circulation valve (V153) is opened according to the control of the controller 1541. Accordingly, the foreign matter (eg, fat component) removed from the pores by the first drug injected into the skin in the previous step (S1603) and the first drug remaining on the surface of the skin or injected into the pores after being sprayed It is pumped by the first circulation pump (P154) and returned to the first ampoule (1531) through the first circulation pipe and the first circulation valve (V153).

In the second drug injection step (S1605), the drug supply pump P155 is driven under the control of the controller 1541. Accordingly, after the second drug stored in the second ampoule 1532 is pumped and supplied to the injection pipe 1550 through the supply pipe 1511, a pair of injection nozzles formed opposite to each other on the inner wall of the injection pipe 1550 sprayed onto the skin through

In the second drug recovery step (S1606), the second circulation pump (P156) is driven and the second circulation valve (V154) is opened according to the control of the controller 1541. Accordingly, among the second drugs injected into the skin in the previous step (S1605), the second drug remaining on the skin without being injected into the skin is pumped by the second circulation pump (P154) to the second circulation pipe and the second drug. It is returned to the second ampoule 1532 through the circulation valve V154.

Each of the above steps (S1601 to S1606) can be freely performed regardless of the order. For example, the skin washing liquid injection step (S1601) and the skin washing liquid recovery step (S1502) may be performed simultaneously. Also, the first drug dispensing step (S1603) and the first drug recovering step (S1604) may be performed simultaneously. Also, the second drug dispensing step (S1605) and the second drug recovering step (S1606) may also be performed simultaneously.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and can be implemented in more diverse embodiments based on the basic concept of the present invention defined in the following claims, These embodiments also belong to the scope of the present invention.

100, 200, 900. 1100: drug injection device
100A, 200A, 900A, 1100A, 1500A : Body
110, 210, 1110, 1510: supply box
120, 220, 920, 1120, 1520: collection container
111, 211, 911, 1111, 1511: supply pipe
212, 931: circulation pipe
121, 221, 921, 1121, 1521: recovery pipe
130, 230, 930, 1140, 1541: handpiece
140, 240, 940, 1150, 1550: Injection pipe
231, 932, 1141, 1541: control unit
241: inner wall
242, 942, 1152: push rod
243A, 243B: injection nozzle
601: sweat hole
1130: ampoule
931: circulation pipe
1130: ampoule
1531: 1st ampoule
1532: second ampoule

Claims (35)

a supply container in which the drug is stored and a recovery container in which the recovered drug is stored;
a supply pump for supplying the drug to the skin, a circulation pump for circulating the drug that has not been injected into the skin after being sprayed on the skin, and a recovery pump for recovering used drug among the drugs;
a supply pipe and a supply valve connected to the supply pump, a circulation pipe and a circulation valve connected to the circulation pump, and a recovery pipe and a recovery valve connected to the recovery pump; and
The drug injection device comprising a spray pipe for injecting the drug supplied through the supply pipe onto the skin and inhaling the drug that is not injected into the skin after the drug is injected.
According to claim 1,
The drug injection device, characterized in that the supply pump and the supply valve, the circulation pump and the circulation valve are connected in line between the supply tube and the injection pipe, respectively.
According to claim 1,
The drug injection device, characterized in that the recovery pump and the recovery valve are connected in a row between the recovery tube and the injection pipe.
According to claim 1,
said drug
A drug injection device comprising at least one of skin nutrients and vitamins.
According to claim 1,
the injection pipe
a spray nozzle installed on an inner wall to spray the drug supplied through the supply pipe to the skin; and
A drug injection device comprising a suction port for inhaling the drug that is not injected into the skin after being injected into the skin.
According to claim 1,
the injection pipe
Drug injection device, characterized in that rotated when spraying the drug to the skin.
A drug injection step of pumping the drug stored in the supply container and spraying it to the skin through an injection pipe;
Reuse drug circulation step of recovering the remaining drug that is not injected into the skin after being injected into the skin and returning it to the supply container; and
A method of driving a drug injection device comprising a; used drug recovery step of recovering a used drug from among the drugs into a collection container.
According to claim 7,
between the supply tube and the injection tube
supply pipe, supply pump and supply valve;
circulation pipe, circulation pump and circulation valve and
A method of driving a drug injection device, characterized in that the recovery pipe, the recovery pump and the recovery valve are connected in a row.
a supply container in which the drug is stored and a recovery container in which the recovered drug is stored;
a supply pipe and a supply pump for supplying the drug to the skin, a recovery pipe and a recovery pump for recovering the drug that has been used among the drugs;
a circulation pipe, a first circulation pump, and a second circulation pump connected to the supply pipe and the recovery pipe respectively to circulate and supply a certain amount of drug to the skin side;
a supply valve for regulating the drug supplied from the supply pump, a recovery valve for regulating the drug recovered through the recovery pump, and a circulation valve for regulating the drug in the circulation pipe; and
The drug injection device comprising a spray pipe for injecting the drug supplied through the supply pipe onto the skin and inhaling the drug that is not injected into the skin after the drug is injected.
According to claim 9,
The supply pipe, the supply pump, the first circulation pump, and the supply valve are connected in line between the supply pipe and the injection pipe,
The recovery pipe, the recovery pump, the second circulation pump, and the recovery valve are connected in a row between the recovery tube and the injection pipe,
The drug injection device, characterized in that the circulation pipe and the circulation valve are connected in a row between the supply pipe and the return pipe.
a supply container for storing the cleaning fluid, a collection container for storing the collected cleaning fluid, and an ampoule for storing the drug;
a supply pipe and a washing liquid supply pump for supplying the washing liquid to the skin, a recovery pipe and a recovery pump for recovering the washing liquid sprayed on the skin;
a drug supply pump for supplying the drug to the skin side and a circulation pump for pumping a drug that has not been injected into the skin after being sprayed onto the skin from among the drugs to the side of the ampoule;
a supply valve controlling the washing liquid supplied from the washing liquid supply pump, a recovery valve controlling the washing liquid recovered through the recovery pump, and a circulation valve controlling the drug circulated from the circulation pump to the ampoule; and
The drug injection device comprising a spray pipe for injecting the drug onto the skin and inhaling the drug that is not injected into the skin after the drug is injected.
a supply container for storing the skin washing fluid, a recovery container for storing the collected skin washing fluid, a first ampoule for storing the first drug, and a second ampoule for storing the second drug;
A supply pipe and a skin washing liquid supply pump for supplying the skin washing liquid to the skin side, a recovery pipe and a skin washing liquid recovery pump for recovering the skin washing liquid sprayed on the skin;
a first drug supply pump for supplying the first drug to the skin and a first circulation pump for pumping the first drug that is not injected into the skin from among the first drugs to the first ampoule;
a second drug supply pump for supplying the second drug to the skin and a second circulation pump for pumping the second drug, which is not injected into the skin after being sprayed onto the skin, to the second ampoule;
A skin wash liquid supply valve for controlling the skin wash liquid supplied from the skin wash liquid supply pump, a skin wash liquid recovery valve for controlling the skin wash liquid recovered through the skin wash liquid recovery pump, and circulating from the first circulation pump to the first ampoule a first circulation valve controlling a first drug and a second circulation valve controlling a second drug circulated from the second circulation pump to the second ampoule; and
and an injection pipe for injecting the second drug onto the skin and inhaling the second drug that is not injected into the skin after the injection.
According to claim 12,
The drug injection device, characterized in that the cleaning liquid is included in the first drug and / or the second drug.
delete delete According to claim 11,
The supply pipe, the washing liquid supply pump, and the supply valve are connected in line between the supply pipe and the injection pipe,
The recovery pipe, the recovery pump, and the recovery valve are connected in line between the recovery cylinder and the injection pipe,
The drug supply pump is connected between the ampoule and the supply pipe,
The drug injection device, characterized in that the circulation pump is connected between the ampoule and the recovery pipe.
According to claim 11,
the injection pipe
a spray nozzle installed on an inner wall to spray the cleaning liquid or the drug onto the skin; and
The drug injection device comprising a suction port for inhaling the cleaning liquid sprayed onto the skin and the drug not injected into the skin.
A washing liquid spraying step of spraying the washing liquid stored in the supply container to the skin;
A washing liquid recovery step of recovering the washing liquid mixed with foreign substances on the skin after being sprayed on the skin;
A drug spraying step of spraying the drug stored in the ampoule to the skin; and
and a drug recovery step of recovering, after being injected into the skin, the remaining drug that is not injected into the skin into the ampoule.
According to claim 18,
A washing liquid supply pump, a supply pipe, and a supply valve are connected in series between the supply tube and the injection pipe,
A recovery pump, a recovery pipe, and a recovery valve are connected in a row between the supply tube and the injection pipe,
A drug supply pump is connected between the ampoule and the supply pipe,
A method of driving a drug injection device, characterized in that a circulation pump is connected between the ampoule and the recovery pipe.
Skin washing liquid injection step of spraying the skin washing liquid stored in the supply container to the skin;
Washing liquid recovery step of recovering the skin washing liquid mixed with the foreign matter of the skin after being sprayed on the skin;
a first drug spraying step of spraying the first drug stored in the first ampoule to the skin;
a first drug recovery step of recovering the first drug mixed with foreign substances after spraying on the skin with the first ampoule;
a second drug spraying step of spraying a second drug stored in a second ampoule onto the skin; and
and a second drug recovery step of recovering the second drug that is not injected into the skin after being sprayed onto the skin but remains in the second ampoule.
According to claim 20,
A method of driving a drug injection device, characterized in that the first drug and / or the second drug contains a cleaning liquid.
supply box;
an injection pipe through which the drug in the supply container is injected;
a collection container for storing the drug to be discarded;
a supply pipe connecting between the supply pipe and a spray nozzle of the injection pipe;
a circulation pipe connecting the inlet of the injection pipe and the supply pipe;
a recovery pipe connecting the suction port of the injection pipe and the collection container;
a supply pump and a supply valve disposed along the supply pipe;
a circulation pump and a circulation valve disposed along the circulation pipe; and
A drug injection device comprising a recovery pump and a recovery valve disposed along the recovery pipe.
supply box;
an injection pipe through which the drug in the supply container is injected;
a collection container for storing the drug to be discarded;
a supply pipe connecting between the supply passage and the inlet of the circulation pipe;
a recovery pipe connecting an outlet of the circulation pipe and the recovery container;
a circulation pipe connecting between the injection nozzle of the injection pipe and the inlet of the injection pipe;
a supply pump and a supply valve disposed along the supply pipe;
a first circulation pump, a second circulation pump and a circulation valve disposed along the circulation pipe; and
A drug injection device comprising a recovery pump and a recovery valve disposed along the recovery pipe.
supply box;
recovery bin;
injection pipe;
ampoule bottle;
a supply pipe connecting between the supply tube and the injection nozzle of the injection pipe;
a recovery pipe that connects between the inlet of the injection pipe and the collection container;
a drug supply pipe connecting the ampoule container and the injection nozzle of the injection pipe;
a drug recovery pipe connecting the ampoule container and the suction port of the injection pipe;
a supply pump and a supply valve disposed in the supply pipe;
a recovery pump and a recovery valve disposed in the recovery pipe;
a drug supply pump disposed in the drug supply pipe; and
A drug injection device comprising a drug recovery pump and a circulation valve disposed in the drug recovery pipe.
According to claim 23,
The first circulation pump is provided between the injection nozzle of the injection pipe and the inlet of the circulation pipe,
The second circulation pump is provided between the inlet of the injection pipe and the outlet of the circulation pipe,
The drug injection device, characterized in that the circulation valve is provided between the inlet of the circulation pipe and the outlet of the circulation pipe.
The method of claim 22, 23 or 24,
The drug injection device further comprising a control unit for sending out a control signal according to a circulation mode and a recovery mode state.
The method of claim 26,
In the circulation mode,
The control signal is
The supply valve and the circulation valve are opened,
The recovery valve is closed,
The supply pump and the circulation pump are driven,
The recovery pump is a drug injection device, characterized in that the signal to stop driving. The method of claim 26,
In the recovery mode,
The control signal is
The supply valve and the recovery valve are opened,
The circulation valve is closed,
The supply pump and the recovery pump are driven,
The drug injection device, characterized in that the circulation pump is a signal to stop driving.
The method of claim 26,
In the circulation mode,
The control signal is
The supply valve and the recovery valve are closed,
The circulation valve is opened,
The first circulation pump and the second circulation pump are driven,
The drug injection device, characterized in that the supply pump and the recovery pump is a signal to stop driving.
The method of claim 26,
In the recovery mode,
The control signal is
The supply valve and the recovery valve are opened,
The circulation valve is closed,
The drug injection device, characterized in that the signal for driving the first circulation pump, the second circulation pump, the supply pump and the recovery pump.
The method of claim 26,
In the circulation mode,
The control signal is
The supply valve and the recovery valve are closed,
The circulation valve is opened,
The drug supply pump is driven,
The drug injection device, characterized in that the driving of the supply pump and the recovery pump is a signal to stop.
The method of claim 26,
In the recovery mode,
The control signal is
The supply valve and the recovery valve are opened,
The circulation valve is closed,
The drug supply pump stops driving,
The drug injection device, characterized in that the supply pump and the recovery pump are driving signals.
opening the supply valve;
If the current operating state is the circulation mode, the circulation valve is opened, the recovery valve is closed, the supply pump is driven, the circulation pump is driven, and the recovery pump is stopped;
When the current operating state is the recovery mode, the circulation valve is closed, the recovery valve is opened, the supply pump is driven, the recovery pump is driven, and the circulation pump is stopped. A driving method of a drug injection device.
When the current operating state is the circulation mode, the supply valve is closed, the return valve is closed, the circulation valve is open, the first circulation pump is running, the second circulation pump is running, the supply pump is stopped running, and the recovery pump is stopped running. step of becoming;
When the current operating state is the recovery mode, the supply valve is open, the recovery valve is open, the circulation valve is closed, the first circulation pump is driven, the second circulation pump is driven, the supply pump is driven, Driving the recovery pump; driving method of the drug injection device characterized in that it is included.
If the current operating state is the circulation mode, the supply valve is closed, the recovery valve is closed, the circulation valve is open, the drug drive pump is operated, the supply pump is stopped, and the recovery pump is stopped;
If the current operating state is the recovery mode, opening the supply valve, opening the recovery valve, closing the circulation valve, stopping the driving of the drug drive pump, driving the supply pump, and driving the recovery pump; A method of driving a drug injection device, characterized in that it comprises.

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