Cryogenic cooling device for dental treatment

Abstract

To relate to a cryogenic cooling device for dental treatment.SOLUTION: According to an exemplary embodiment of the present invention, a cryogenic cooling device for dental treatment can include a first coolant storage tank storing a first coolant, a second coolant storage tank storing a second coolant, a control part connected to the first coolant storage tank and the second coolant storage tank to adjust a supply amount of the first coolant and a supply amount of the second coolant, and to mix and supply first coolant gas and second coolant gas after converting the first coolant and the second coolant into the first coolant gas and the second coolant gas, respectively, and a coolant gas injection device for injecting mixed coolant gas that receives supply from the control part. The control part can adjust the supply amount of the first coolant and the supply amount of the second coolant so as to mix the first coolant gas and the second coolant gas with mutually different ratios.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a cryogenic cooling device for dental treatment, and more particularly to a cryogenic cooling device for dental treatment using two different types of coolants. [Background technology]

[0002] Cryotherapy is a therapy that applies the principle of cooling with ice when there is pain from bruises or inflammation. The user's whole body is exposed to low temperature air for a specific period of time, which dissipates heat from within the body to maintain body temperature, strengthening the body's immune system and increasing the body's natural healing power by generating heat in the inflamed area. It also provides strong stimulation to the nervous system, preventing pain-inducing nerve fibers from functioning, thereby relieving pain. It is a therapy that is widely used in Europe and other places.

[0003] A cryogenic cooling treatment device is a device used for treatment such as relieving pain and reducing edema by injecting a cryogenic cooling substance into the affected area of ​​the patient, and requires a continuous supply of cooling substance. Conventional cryogenic treatment devices use nitrogen or carbon dioxide as a cooling substance for treatment, and store these cooling substances in a tank and then inject them into the affected area when needed.

[0004] As a technology relating to the above-mentioned conventional cryogenic cooling device, Korean Patent Publication No. 10-2010-0054097 is disclosed.

[0005] With reference to the publicly available prior art that has been developed for medical local cooling, local cooling using cryogenic coolants such as liquid nitrogen and dry ice is used, but the inherent temperature of such coolants is significantly lower than the cell death temperature, making it difficult to stably realize cooling conditions that produce the aforementioned effects of cooling anesthesia, immune activation, etc., limiting their use for various clinical purposes. The absence of such technology is due to the large specific heat that cells have from the beginning, and the difficulty of precisely controlling the temperature of a coolant that has a high cooling output necessary for engineering-effective cell cooling at any temperature outside its inherent temperature range.

[0006] In the case of cooling anesthesia, which is an extended use example of the above-mentioned cryotherapy, unlike local anesthetics (Lidocaine) that take time for chemicals to diffuse to the nerves, when the temperature of the nerve is physically cooled, an anesthetic state can be immediately generated in the relevant area, which is effective in rapid local anesthesia required for various medical procedures. Furthermore, in the case of anesthetics for anesthesia of a local area, not only is it limited that it takes a long time for the anesthetic to penetrate the thick skin layer and reach the pain-sensing nerves, but in the case of skin where chemicals are difficult to diffuse, there is a disadvantage that the anesthetic effect is often insufficient without direct injection. Conventional medical cooling systems have been developed that use cooled air for such anesthesia purposes to reduce pain in local areas of the skin, but there is a limitation in that it is difficult to lower the temperature of the treatment area to a temperature at which the anesthetic effect appears due to the low heat capacity of air.

[0007] In addition, when using conventional cryogenic cooling treatment devices for dental treatment, the contact surface is adjacent to the face of the human body, unlike ordinary skin, so if cooling gas is sprayed directly, there is a high possibility of causing damage to the outer skin of the face or the skin inside the mouth, and therefore there was a problem that different temperatures had to be applied when spraying the cooling gas.

[0008] In addition, nitrogen gas or carbon dioxide gas is generally used as a cooling gas, but when performing cryogenic cooling treatment using only one type of cooling gas, it is difficult to completely block the action of pain-inducing nerve fibers, which makes it difficult to fully relieve pain. Summary of the Invention [Problem to be solved by the invention]

[0009] SUMMARY OF THE PRESENT EMBODIMENT One of the various objects of the present invention is to provide a cryogenic cooling device that can provide a suitable temperature after combination of cooling gases to be suitable for dental treatment.

[0010] Another object of the present invention is to provide a cryogenic cooling device capable of simultaneously performing cryogenic cooling treatment on the outer skin of the face and the skin inside the mouth of a patient. [Means for solving the problem]

[0011] A cryogenic cooling device for dental treatment according to an exemplary embodiment of the present invention may include a first coolant storage tank storing a first coolant, a second coolant storage tank storing a second coolant, a control unit connected to the first coolant storage tank and the second coolant storage tank, adjusting the supply amount of the first coolant and the supply amount of the second coolant, and converting the first coolant and the second coolant into a first cooling gas and a second cooling gas, respectively, and mixing and supplying the mixed cooling gas, and a cooling gas injection device for injecting the mixed cooling gas supplied from the control unit. The control unit may adjust the supply amount of the first coolant and the supply amount of the second coolant such that the first cooling gas and the second cooling gas are mixed in different ratios.

[0012] The control unit may include a heater unit for converting the first cooling material and the second cooling material into the first cooling gas and the second cooling gas, respectively, a sensor unit for measuring the temperature and pressure of the first cooling gas and the second cooling gas, a pressure adjustment unit for adjusting the pressure of the first cooling gas and the second cooling gas, a temperature adjustment unit for adjusting the temperature of the first cooling gas and the second cooling gas, and a cooling gas mixing unit for mixing the first cooling gas and the second cooling gas.

[0013] The first and second coolants can be liquid carbon dioxide and liquid nitrogen, respectively, the first and second cooling gases can be gaseous carbon dioxide and gaseous nitrogen, respectively, and the first and second cooling gases can be formed by vaporizing the first and second coolants, respectively.

[0014] The first coolant and the first cooling gas can each be gaseous carbon dioxide, the second coolant and the second cooling gas can each be gaseous nitrogen, and the first cooling gas and the second cooling gas can be formed by heating the first coolant and the second coolant, respectively, to increase their temperatures.

[0015] The mixture ratio of the first cooling gas and the second cooling gas may be 1:1.

[0016] The first cooling gas may be mixed to have a higher content than the second cooling gas.

[0017] The first cooling gas may be mixed to have a lower content than the second cooling gas.

[0018] The cooling gas injection device may include a main body case, a cooling gas supply line connected to the control unit and through which the mixed cooling gas moves, a cooling gas flow control unit for controlling the flow rate of the mixed cooling gas, and a cooling gas injection nozzle through which the mixed cooling gas is injected, and the cooling gas flow control unit may control the flow rate of the cooling gas by adjusting the size of the injection port of the cooling gas injection nozzle.

[0019] The cooling gas injection device may further include a cooling gas flow path conversion device for converting the flow paths of the mixed cooling gas to different directions. The cooling gas flow path conversion device may include a first flow path forming unit, a second flow path forming unit, a first cooling treatment unit, and a second cooling treatment unit. The first cooling treatment unit may not be directly injected with the mixed cooling gas, and the second cooling treatment unit may be directly injected with the mixed cooling gas.

[0020] The cooling gas flow path conversion device may be detachably coupled to the main body case.

[0021] The cooling gas jet device may further include a cooling treatment cover at least partially covering an outer surface of the first cooling treatment portion, and the cooling treatment cover may be made of polyethylene, polypropylene, or a combination thereof.

[0022] A cryogenic cooling device for dental treatment according to an exemplary embodiment of the present invention may include a coolant storage tank in which a coolant is stored, a control unit connected to the coolant storage tank to adjust the amount of coolant supplied and convert the coolant into a cooling gas before supplying it, and a cooling gas injection device for injecting the cooling gas supplied from the control unit, and the cooling gas injection device may include a cooling gas flow path conversion device for converting the flow path of the cooling gas into different directions, and the cooling gas flow path conversion device may include a first cooling treatment unit to which the cooling gas is not directly injected and a second cooling treatment unit to which the cooling gas is directly injected. Effect of the Invention

[0023] The cryogenic cooling device for dental treatment according to an exemplary embodiment of the present invention can provide a combination of nitrogen gas and carbon dioxide gas, thereby maximizing the effect of relieving pain in the patient by completely blocking the functioning of pain-inducing nerve fibers.

[0024] In addition, the ultra-low temperature cooling device for dental treatment according to an exemplary embodiment of the present invention can be driven to control the temperature of the cooling gas to a temperature suitable for dental treatment, thereby minimizing damage to the outer skin of the face or the skin inside the mouth of the person being treated.

[0025] Meanwhile, a cryogenic cooling device for dental treatment according to an exemplary embodiment of the present invention may include a first cooling treatment unit in which the cooling gas is not directly sprayed but is transferred with a temperature drop from the cooling gas and cooling treatment is performed by direct surface contact, and a second cooling treatment unit in which the cooling gas is directly sprayed, and cooling treatment can be performed on the skin area in the oral cavity of the treated person through the first cooling treatment unit, and cooling treatment can be performed on the outer skin area of ​​the facial part of the treated person through the second cooling treatment unit. Therefore, damage to the outer skin of the facial part or the skin in the oral cavity of the treated person can be minimized, and cooling treatments can be performed in suitable manners for different skin surfaces. [Brief description of the drawings]

[0026] [Figure 1] FIG. 11 is a front perspective view for explaining a conventional cryogenic cooling device. [Diagram 2] FIG. 11 is a rear perspective view for explaining a conventional cryogenic cooling device. [Diagram 3] FIG. 2 is a rear view showing a state in which a rear panel has been removed to illustrate the configuration of a cryogenic cooling device for dental treatment according to an exemplary embodiment of the present invention. [Figure 4] 4 is a block diagram for explaining the configuration of a control unit of the cryogenic cooling device for dental treatment. FIG. [Diagram 5]FIG. 2 is a block diagram for explaining a cooling gas injection device of the cryogenic cooling device for dental treatment. [Figure 6] FIG. 2 is a block diagram for explaining a cooling gas flow path conversion device of the cryogenic cooling device for dental treatment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] Specific embodiments of the present invention will be described below. The following detailed description is provided to facilitate a comprehensive understanding of the methods, devices and / or systems described herein. However, this is for illustrative purposes only, and the present invention is not limited thereto.

[0028] In describing the embodiments of the present invention, if it is determined that a specific description of a known technology related to the present invention may make the gist of the present invention unclear, the detailed description will be omitted. In addition, the terms described below are defined in consideration of the functions in the present invention, and may vary depending on the intention or practice of a user or operator. Therefore, the definition should be based on the overall content of this specification. The terms used in the detailed description are merely for describing the embodiments of the present invention and should not be limiting in any way. Unless otherwise clearly used, expressions in the singular form include the plural form. In this description, expressions such as "include" or "comprise" are intended to indicate certain characteristics, numbers, steps, operations, elements, parts or combinations thereof, and should not be interpreted to exclude the presence or possibility of one or more other characteristics, numbers, steps, operations, elements, parts or combinations thereof other than those described.

[0029] In addition, in describing components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. are used to distinguish the components from other components, and the terms do not limit the essence, procedure, order, etc. of the components.

[0030] 1 and 2 are front and rear perspective views, respectively, for explaining a conventional cryogenic cooling device.

[0031] Referring to Figures 1 and 2, a conventional cryogenic cooling device 1000 is composed of a main frame 1001, a tank mounting section 1002, a running section 1003, a power supply section 1004, a control section 1005, and a cooling gas injection device 1010, and the tank mounting section 1002 is provided with only one coolant storage tank 1020, and is configured to perform cryogenic cooling treatment on a patient using only one type of coolant.

[0032] Conventionally, the cryogenic cooling device 1000 is provided on the front side of a main frame 1001, and may further include an On / Off button section 1006 for turning the power on and off, a display section 1007 for setting various gas injection conditions and illustrating the current status, and an injection device placement section 1015 for placing a cooling gas injection device 1010.

[0033] In addition, the conventional cryogenic cooling device 1000 may further include an outlet 1023 through which coolant flows out from the coolant storage tank 1020, a valve 1025 that is opened and closed by automatic operation of the control unit 1005 or manual operation by a user, a coolant supply line 130 through which the flowed-out coolant can flow, and a supply line connection unit 140 that passes through a part of the control unit 1005 and accommodates one end of the coolant supply line 130.

[0034] FIG. 3 is a rear view showing a state in which the rear panel has been removed, for explaining the configuration of the cryogenic cooling device for dental treatment.

[0035] Referring to FIG. 3, a cryogenic cooling device 1 for dental treatment according to an exemplary embodiment of the present invention includes a first coolant storage tank 100 in which a first coolant is stored, a second coolant storage tank 200 in which a second coolant is stored, a control unit 50 connected to the first coolant storage tank 100 and the second coolant storage tank 200 and configured to adjust the amount of the first coolant and the amount of the second coolant supplied and convert the first coolant and the second coolant into a first cooling gas and a second cooling gas, respectively, and then mix and supply the mixed coolant and a cooling gas injection device 500 for injecting the mixed cooling gas supplied from the control unit 50.

[0036] Specifically, the first coolant storage tank 100 and the second coolant storage tank 200 may both be mounted on a tank mounting unit 20 provided at the lower part of the rear side of the main frame 10, and a travel unit 30 for moving the cryogenic cooling device for dental treatment 1 may be installed under the main frame 10. A power supply unit 40 for supplying power to the cryogenic cooling device for dental treatment 1 may be provided on a side part of the lower frame of the tank mounting unit 20.

[0037] The control unit 50 can control at least one of the heat or coolant injection time applied to the temperature control units 170, 270 described below using at least one of the preset cooling conditions or temperature information measured by the sensor units 160, 260 described below.

[0038] In addition, the control unit 50 includes a mode in which it automatically operates according to a preset protocol and a mode in which it operates according to commands input from a user depending on a user operation mode. In the user mode, the control unit 50 stores temperature data measured by the sensor units 160 and 260, and the stored big data can be utilized in various fields in the future.

[0039] In addition, the control unit 50 can be configured to optimize electrical signals and power supply connectors between each component and the control unit to perform efficient control and power supply. Here, the control unit can include various devices capable of processing data, such as a processor. Here, the term "processor" can refer to a data processing device built into hardware having a physically structured circuit for performing a function expressed by a code or instruction included in a program, for example. Examples of such data processing devices built into hardware include processing devices such as a microprocessor, a central processing unit (CPU), a processor core, a multiprocessor, an application-specific integrated circuit (ASIC), and a field programmable gate array (FPGA), but the scope of the present invention is not limited thereto.

[0040] The first coolant storage tank 100 and the second coolant storage tank 200 can be coupled to a first storage tank fixing part 110 and a second storage tank fixing part 210, respectively, and fixed onto the tank mounting part 20.

[0041] The outlets 120, 220 of the first coolant storage tank 100 and the second coolant storage tank 200 may be provided with valves 125, 225 that are opened and closed by automatic operation of the control unit or manual operation by the user, and by selectively opening the valve 125, the high-pressure coolant contained inside the first and second coolant storage tanks 100, 200 can be discharged.

[0042] The outlets 120, 220 of the first coolant storage tank 100 and the second coolant storage tank 200, respectively, may be referred to as the first coolant outlet 120 and the second coolant outlet 220, or alternatively, as the first coolant adaptor 120 and the second coolant adaptor 220.

[0043] In an exemplary embodiment, the first coolant is low temperature, high pressure liquefied carbon dioxide (CO 2 ) and the second coolant can be low-temperature, high-pressure liquefied nitrogen (N), but the concept of the present invention is not necessarily limited thereto. That is, the first coolant can be low-temperature, high-pressure gaseous carbon dioxide (CO 2 ), and the second coolant may be low temperature, high pressure gaseous nitrogen (N).

[0044] The control unit 50 may be provided at the upper portion of the upper side of the main frame 10, and may adjust the supply amount of the first cooling gas and the supply amount of the second cooling gas so that the first cooling gas and the second cooling gas are mixed in different ratios.

[0045] The first coolant stored in the first coolant storage tank 100 can move to the control unit 50 via the first coolant supply line 130 through the first coolant adaptor 120 and the first outlet valve 125, and the second coolant stored in the second coolant storage tank 200 can move to the control unit 50 via the second coolant supply line 230 through the second coolant adaptor 220 and the second outlet valve 225. Here, the first coolant supply line 130 and the second coolant supply line 230 can be connected to the control unit 50 via the first supply line coupling unit 140 and the second supply line coupling unit 240, respectively.

[0046] FIG. 4 is a block diagram for explaining the configuration of the control unit of the cryogenic cooling device for dental treatment.

[0047] Referring to FIG. 4, the control unit 50 may include first and second heater units 190, 290 for converting the first coolant and the second coolant into a first cooling gas and a second cooling gas, respectively, first and second sensor units 160, 260 for measuring the temperature and pressure of the first cooling gas and the second cooling gas, first and second pressure adjustment units 180, 280 for adjusting the pressure of the first cooling gas and the second cooling gas, first and second temperature adjustment units 170, 270 for adjusting the temperature of the first cooling gas and the second cooling gas, and a cooling gas mixer 300 for mixing the first cooling gas and the second cooling gas.

[0048] Specifically, the first coolant stored in the first coolant storage tank 100 can move through the first coolant adapter 120 and the first outlet valve 125 to the control unit 50 via the first coolant supply line 130, and can be temporarily stored in the first coolant storage unit 150 installed inside the control unit 50, and then converted into the first coolant gas via the first heater unit 190.

[0049] Similarly, the second coolant stored in the second coolant storage tank 200 can also move to the control unit 50 via the second coolant supply line 230 through the second coolant adapter 220 and the second outlet valve 225, and can be temporarily stored in the second coolant storage unit 250 installed inside the control unit 50, and then converted into the second coolant gas through the second heater unit 290.

[0050] That is, the present invention is capable of adjusting the thermodynamic phases (temperature, pressure) of the first and second coolants in accordance with the paths along which the first and second coolants move, and by selectively driving each component of the cooling device, i.e., heater units 190, 290, pressure adjustment units 180, 280, and temperature adjustment units 170, 270, or by driving them in conjunction with each other, it is possible to control the thermodynamic phase of the coolants by heating or cooling.

[0051] The following description is based on controlling the thermodynamic phases of the first and second coolants using thermal energy, however, the concept of the present invention is not necessarily limited thereto and control over pressure may also be performed using other energy sources, for example mechanical energy.

[0052] In one embodiment, the heater units 190, 290, the pressure control units 180, 280, and the temperature control units 170, 270 may each be configured as a heat transfer mediator between a coolant and a thermoelectric element, with a focus on heating control based on a thermoelectric element. In addition, the heater units 190, 290, the pressure control units 180, 280, and the temperature control units 170, 270 may each include a nozzle structure capable of optimizing the amount of coolant injected and the Joule-Thomson effect. Here, the Joule-Thomson effect is a phenomenon in which the temperature drops when compressed gas expands. It is a phenomenon in which the temperature changes in relation to a thermodynamic phase consisting of pressure and temperature, and is applied when liquefying air or cooling with a refrigerant. It is a phenomenon in which the temperature of a fluid drops behind a restriction such as an orifice when a restriction is inserted in a fluid flow path. When gas undergoes free expansion, i.e. when it expands adiabatically without exchanging work with the outside, the internal energy hardly changes at all. This refers to the effect of adiabatic free expansion in gas liquefaction equipment to obtain low temperatures.

[0053] Next, the pressure and temperature of the first and second cooling gases can be adjusted via the first and second heater units 190, 290 and the first and second control valves 155, 255, respectively, and the first and second cooling gases can be mixed in the cooling gas mixing unit 300 and then moved to the cooling gas injection device 500 via the cooling gas supply unit 310.

[0054] Here, the mixing ratio of the first cooling gas and the second cooling gas may be 1:1, but the concept of the present invention is not necessarily limited thereto. That is, the first cooling gas may be mixed to have a higher content than the second cooling gas, and conversely, the first cooling gas may be mixed to have a lower content than the second cooling gas.

[0055] In one embodiment, the first coolant is low-temperature, high-pressure liquefied carbon dioxide (CO 2 ), the first cooling gas can be formed by vaporizing the first coolant, and when the second coolant is low-temperature, high-pressure liquefied nitrogen (N), the second cooling gas can be formed by vaporizing the second coolant.

[0056] In contrast, the first coolant is low-temperature, high-pressure gaseous carbon dioxide (CO 2 ), the first cooling gas can be formed by adjusting the temperature and pressure rather than a phase change of the first coolant, and when the second coolant is low-temperature, high-pressure gaseous nitrogen (N), the second cooling gas can be formed by adjusting the temperature and pressure rather than a phase change of the second coolant.

[0057] FIG. 5 is a block diagram for explaining a cooling gas injection device of the cryogenic cooling device for dental treatment.

[0058] 5, cooling gas injection device 500 may include a main body case 505, a cooling gas supply line 510 connected to a control unit 50 and through which the mixed cooling gas moves, a cooling gas flow rate control unit 530 for controlling the flow rate of the mixed cooling gas, and a cooling gas injection nozzle 540 through which the mixed cooling gas is injected. Here, cooling gas flow rate control unit 530 may control the flow rate of the cooling gas by adjusting the size of the injection port of cooling gas injection nozzle 540.

[0059] In an exemplary embodiment, the temperature of the mixed cooling gas injected through the cooling gas injection device 500 may be a temperature that can be controlled within a temperature range of -40°C or more and 10°C or less at the treatment site of the patient, and preferably, a temperature that can be controlled within a temperature range of -20°C or more and 10°C or less at the treatment site of the patient.

[0060] FIG. 6 is a block diagram for explaining a cooling gas flow path conversion device of the cryogenic cooling device for dental treatment.

[0061] Referring to FIG. 6, the cooling gas injection device 500 may further include a cooling gas flow path conversion device for converting the flow paths of the mixed cooling gases into different directions.

[0062] Specifically, the cooling gas flow path conversion device may include a first flow path forming unit 553, a second flow path forming unit 557, a first cooling treatment unit 555, and a second cooling treatment unit 559. The first cooling treatment unit may be provided so that the mixed cooling gas is not directly injected, and the second cooling treatment unit may be provided so that the mixed cooling gas is directly injected.

[0063] In an exemplary embodiment, the first cooling treatment unit 555 may be made of a material having high thermal conductivity, such as a metal, and the second cooling treatment unit 559 may be in the form of an outlet through which the mixed cooling gas is injected. In one embodiment, the outlet of the second cooling treatment unit 559 may have a smaller diameter than the outlet of the cooling gas injection nozzle 540.

[0064] That is, the first cooling treatment unit 555 can be provided to perform cooling treatment on the treated person by receiving the temperature drop caused by the mixed cooling gas moved through the first flow path forming unit 553 and by direct surface contact, and the second cooling treatment unit 559 can be provided to perform cooling treatment on the treated person by directly transferring the temperature drop caused by the mixed cooling gas moved through the second flow path forming unit 557 being directly sprayed.

[0065] On the other hand, although FIG. 6 illustrates the cooling gas flow path conversion device being detachably connected to the main body case 505, the concept of the present invention is not necessarily limited thereto, and the cooling gas flow path conversion device may be formed integrally with the main body case 505.

[0066] The cooling gas jet device 500 may further include a cooling treatment cover 560 that at least partially covers an outer surface of the first cooling treatment portion 555 .

[0067] The cooling treatment cover 560 may be made of polyethylene, polypropylene or a combination thereof, and a plurality of cooling treatment covers may be provided so that they can be replaced each time the treatment recipient is changed.

[0068] In one embodiment, the cooling treatment cover 560 can be made to a size that covers only the outer surface of the first cooling treatment section 555 and does not cover the outer surface of the first flow path forming section 553.

[0069] Although not shown, the cooling gas jet device 500 may further include a cooling treatment cover tip (not shown) that at least partially covers an outer surface of the second cooling treatment portion 559.

[0070] Like the cooling treatment cover 560, the cooling treatment cover tip may be made of polyethylene, polypropylene, or a combination thereof, and a plurality of pieces may be provided so that they can be used interchangeably whenever the patient is changed. However, unlike the cooling treatment cover 560, the cooling treatment cover tip may be made to a size that can cover both the outer surface of the second cooling treatment portion 559 and the outer surface of the second flow path forming portion 557 adjacent thereto.

[0071] As described above, the cryogenic cooling device 1 for dental treatment according to an exemplary embodiment of the present invention can provide a combination of nitrogen gas and carbon dioxide gas, thereby maximizing the effect of relieving pain in the patient by completely preventing the pain-inducing nerve fibers from functioning.

[0072] In addition, the ultra-low temperature cooling device 1 for dental treatment according to an exemplary embodiment of the present invention can be driven to control the temperature of the cooling gas to a temperature suitable for dental treatment, thereby minimizing damage to the outer skin of the face or the skin inside the mouth of the person being treated.

[0073] Meanwhile, the cryogenic cooling device 1 for dental treatment according to an exemplary embodiment of the present invention may include a first cooling treatment unit 555 in which the cooling gas is not directly sprayed but is transferred with a temperature drop from the cooling gas to perform cooling treatment by direct surface contact, and a second cooling treatment unit 559 in which the cooling gas is directly sprayed, and cooling treatment may be performed on the skin area in the oral cavity of the treated person through the first cooling treatment unit 555, and cooling treatment may be performed on the outer skin area of ​​the facial part of the treated person through the second cooling treatment unit 559. Therefore, damage to the outer skin of the facial part or the skin in the oral cavity of the treated person may be minimized, and cooling treatment may be performed in a suitable manner for each of the different skin surfaces.

[0074] However, the concept of the present invention is not necessarily limited thereto, and devices according to exemplary embodiments of the present invention may be applied to various products or technical fields other than those mentioned above.

[0075] Although various embodiments of the present invention have been described in detail above, those having ordinary skill in the art to which the present invention pertains will understand that various modifications to the above-described embodiments are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined not only by the scope of the claims described below, but also by equivalents to the scope of the claims. [Explanation of symbols]

[0076] 10. Mainframe 20 Tank placement section 30 Running part 40 Power supply section 50 Control section 100, 200 First and second coolant storage tanks 120, 220 1st and 2nd coolant adapters 125, 225 1st and 2nd Outlet Valves 130, 230 First and second coolant supply lines 140, 240 First and second supply line junction 150, 250 First and second coolant storage compartments 155, 255 First and second control valves 160, 260 First and second sensor parts 170, 270 First and second temperature control units 180, 280 First and second pressure adjusting sections 190, 290 1st and 2nd heater section 300 Cooling gas mixing section 310 Cooling gas supply section 500 Cooling gas injection device 505 Main unit case 510 First cooling gas supply line 520 Second cooling gas supply line 530 Cooling gas flow control unit 540 Cooling gas injection nozzle 550 Cooling gas flow path conversion device 551 3rd cooling gas supply line 553, 557 First and second flow path forming portions 555 1st Cooling Treatment Department 559 2nd Cooling Treatment Department 560 Cooling Therapy Cover

Claims

1. a first coolant storage tank in which the first coolant is stored; a second coolant storage tank in which the second coolant is stored; a control unit connected to the first coolant storage tank and the second coolant storage tank, adjusting a supply amount of the first coolant and a supply amount of the second coolant, and converting the first coolant and the second coolant into a first cooling gas and a second cooling gas, respectively, and then mixing and supplying the mixed gas; a cooling gas injection device for injecting the mixed cooling gas supplied from the control unit, The control unit adjusts the supply amount of the first cooling material and the supply amount of the second cooling material so that the first cooling gas and the second cooling gas are mixed in different ratios.

2. The control unit is a heater section for converting the first coolant and the second coolant into the first cooling gas and the second cooling gas, respectively; a sensor unit for measuring temperatures and pressures of the first cooling gas and the second cooling gas; a pressure adjusting unit for adjusting the pressure of the first cooling gas and the second cooling gas; a temperature adjusting unit for adjusting temperatures of the first cooling gas and the second cooling gas; 2. The cryogenic cooling device for dental treatment according to claim 1, further comprising a cooling gas mixer for mixing the first cooling gas and the second cooling gas.

3. the first coolant and the second coolant are liquid carbon dioxide and liquid nitrogen, respectively; the first cooling gas and the second cooling gas are gaseous carbon dioxide and gaseous nitrogen, respectively; 3. The cryogenic cooling device for dental treatment according to claim 2, wherein the first cooling gas and the second cooling gas are formed by vaporizing the first coolant and the second coolant, respectively.

4. the first coolant and the first cooling gas are each gaseous carbon dioxide; the second coolant and the second cooling gas are each gaseous nitrogen; 3. The cryogenic cooling device for dental treatment according to claim 2, wherein the first cooling gas and the second cooling gas are formed by heating the first coolant and the second coolant, respectively, to raise their temperatures.

5. 3. The cryogenic cooling device for dental treatment according to claim 2, wherein a mixing ratio of the first cooling gas and the second cooling gas is 1:

1.

6. The cryogenic cooling device for dental treatment according to claim 2, wherein the first cooling gas is mixed with the second cooling gas so as to have a higher content than the first cooling gas.

7. The cryogenic cooling device for dental treatment according to claim 2, wherein the first cooling gas is mixed to have a lower content than the second cooling gas.

8. The cooling gas injection device is The main body case, a cooling gas supply line connected to the control unit and through which the mixed cooling gas flows; a cooling gas flow rate control unit for controlling a flow rate of the mixed cooling gas; a cooling gas injection nozzle for injecting the mixed cooling gas, The cryogenic cooling device for dental treatment according to claim 1 , wherein the cooling gas flow rate control unit controls the flow rate of the cooling gas by adjusting a size of an injection port of the cooling gas injection nozzle.

9. The cooling gas injection device is The cooling gas supply system further includes a cooling gas flow path changing device for changing the flow paths of the mixed cooling gases in different directions, The cooling gas flow path conversion device includes a first flow path forming section, a second flow path forming section, a first cooling treatment section, and a second cooling treatment section, 2. The cryogenic cooling device for dental treatment according to claim 1, wherein the mixed cooling gas is not directly injected into the first cooling treatment unit, and the mixed cooling gas is directly injected into the second cooling treatment unit.

10. 10. The cryogenic cooling device for dental treatment according to claim 9, wherein the cooling gas flow path conversion device is detachably connected to the main body case.

11. The cooling gas injection device includes a cooling treatment cover that at least partially covers an outer surface of the first cooling treatment portion; The cryogenic cooling device for dental treatment according to claim 9, wherein the cooling treatment cover is made of polyethylene, polypropylene or a combination thereof.

12. a coolant storage tank in which the coolant is stored; a control unit connected to the coolant storage tank for adjusting a supply amount of the coolant and converting the coolant into a cooling gas before supplying the coolant; a cooling gas injection device for injecting the cooling gas supplied from the control unit, the cooling gas injection device includes a cooling gas flow path conversion device for converting the flow paths of the cooling gas into different directions; A cryogenic cooling device for dental treatment, characterized in that the cooling gas flow path conversion device includes a first cooling treatment section to which the cooling gas is not directly injected and a second cooling treatment section to which the cooling gas is directly injected.

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