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 an ultra-low temperature cooling device for dental treatment, and more particularly to an ultra-low temperature cooling device for dental treatment using two different types of coolants.

Background Art

[0002] Cryo Therapy is a therapy that applies the principle of cooling with ice when there is pain such as bruises and inflammation. By exposing the user's whole body to low-temperature air for a specific time and dissipating the heat for maintaining body temperature from the body, the immune system in the body is strengthened, the natural healing power in the body is enhanced by the heating action at the inflamed site, and a strong stimulus is given to the nervous system so that the pain-inducing nerve fibers cannot act, thereby having an effect of relieving pain. It is a therapy widely used in Europe and the like.

[0003] An ultra-low temperature cooling treatment device is a device used for treatments such as pain relief and swelling reduction by injecting an ultra-low temperature cooling substance onto the affected part of a patient, and it is necessary to continuously supply the cooling substance. In conventional ultra-low temperature treatment devices, nitrogen or carbon dioxide is used as the treatment cooling substance, and after storing these cooling substances in a tank, they are injected onto the affected part when necessary.

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

[0005] Referring to publicly available prior art developed for medical local cooling, local cooling using cryogenic coolants such as liquid nitrogen and dry ice is employed. However, the inherent temperatures of such coolants are significantly lower than the cell death temperature, making it difficult to stably achieve the cooling conditions necessary for the aforementioned effects such as cryoanesthesia and immune activation, thus limiting their use for various clinical purposes. The absence of such technology stems from the large specific heat inherent in cells from the outset, making it difficult to precisely control the temperature of a coolant with the high cooling output necessary for engineeringly effective cell cooling, deviating from its inherent temperature range to an arbitrary temperature.

[0006] In the case of cryoanes, an extended application of the above-mentioned cryotherapy, unlike local anesthetics (lidocaine) which take time for the chemical substance to diffuse to the nerve, the physical cooling of the nerve temperature can immediately create an anesthetic state in the area, making it effective for rapid local anesthesia required in various medical procedures. Furthermore, anesthetics for local areas have the disadvantage that, in addition to the long time it takes for the anesthetic to penetrate thick skin layers and reach pain-sensing nerves, the anesthetic effect is often insufficient without direct injection in skin where the chemical substance does not diffuse easily. Conventional medical cooling systems have been developed that use cooled air to reduce pain in local areas of the skin for such anesthetic purposes, but they have the limitation that the low heat capacity of air makes it difficult to lower the temperature of the treatment area to a temperature at which an anesthetic effect is produced.

[0007] Furthermore, when conventional cryogenic cooling devices are used for dental treatment, the contact surface differs from typical skin and is adjacent to the facial area of ​​the human body. Therefore, if the 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 oral cavity. This presented a problem in that different temperatures had to be applied when the cooling gas was sprayed.

[0008] Furthermore, while nitrogen or carbon dioxide gas is generally used as a cooling gas, when cryogenic cooling therapy is performed using only one type of cooling gas, it is difficult to completely prevent pain-inducing nerve fibers from acting, which has resulted in problems in properly alleviating pain. [Overview of the Initiative] [Problems that the invention aims to solve]

[0009] One of the various objectives of the present invention is to provide a cryogenic cooling device that can combine cooling gases and then deliver them at an appropriate temperature, making it suitable for dental treatment.

[0010] Another of the various problems addressed by the present invention is to provide a cryogenic cooling device capable of simultaneously performing cryogenic cooling therapy on the outer skin of the face and the skin inside the oral cavity of a patient. [Means for solving the problem]

[0011] An exemplary embodiment of the present invention provides a cryogenic cooling device for dental treatment which 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 and second coolant storage tanks which adjusts the supply amounts of the first coolant and the second coolant, converts the first and second coolants into a first cooling gas and a second cooling gas, respectively, and then mixes and supplies them together, and a cooling gas injection device which injects the mixed cooling gas supplied from the control unit. The control unit can adjust the supply amounts of the first coolant and the second coolant so 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 coolant and the second coolant 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 coolant and the second coolant may be liquid carbon dioxide and liquid nitrogen, respectively, the first cooling gas and the second cooling gas may be gaseous carbon dioxide and gaseous nitrogen, respectively, and the first cooling gas and the second cooling gas may be formed by vaporizing the first coolant and the second coolant, respectively.

[0014] The first coolant and the first cooling gas may each be gaseous carbon dioxide, the second coolant and the second cooling gas may each be gaseous nitrogen, and the first cooling gas and the second cooling gas may each be formed by heating the first coolant and the second coolant to raise their temperature.

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

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

[0017] The first cooling gas can 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 through which the mixed cooling gas moves, a cooling gas flow rate control unit for controlling the flow rate of the mixed cooling gas, and a cooling gas injection nozzle from which the mixed cooling gas is injected. The cooling gas flow rate control unit can 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 in 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. In the first cooling treatment unit, the mixed cooling gas is not directly injected, while in the second cooling treatment unit, the mixed cooling gas is directly injected.

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

[0021] The cooling gas injection device may further include a cooling treatment cover that at least partially covers the outer surface of the first cooling treatment unit, and the cooling treatment cover may be made of polyethylene, polypropylene, or a combination thereof.

[0022] An exemplary embodiment of the present invention provides a cryogenic cooling device for dental treatment that includes a coolant storage tank for storing a coolant, a control unit connected to the coolant storage tank for adjusting the supply amount of the coolant and supplying the coolant after converting it into a cooling gas, and a cooling gas injection device for injecting the cooling gas supplied from the control unit. The cooling gas injection device may include a cooling gas flow path conversion device for converting the flow paths of the cooling gas in different directions. The cooling gas flow path conversion device may include a first cooling treatment section where the cooling gas is not directly injected and a second cooling treatment section where the cooling gas is directly injected. [Effects of the Invention]

[0023] The cryogenic cooling device for dental treatment according to an exemplary embodiment of the present invention can be provided by combining nitrogen gas and carbon dioxide gas, thereby maximizing the pain relief effect of the treated person by making the pain-inducing nerve fibers unable to function completely.

[0024] Further, the cryogenic 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 skin of the facial area or the oral cavity of the treated person.

[0025] On the other hand, the cryogenic cooling device for dental treatment according to an exemplary embodiment of the present invention includes a first cooling treatment unit in which the cooling gas is not directly injected and which receives the transfer of the temperature dropped from the cooling gas and performs cooling treatment by direct surface contact, and a second cooling treatment unit in which the cooling gas is directly injected. 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 skin area of the facial area of the treated person through the second cooling treatment unit. Therefore, damage to the skin of the facial area or the oral cavity of the treated person can be minimized, and suitable cooling treatments can be performed on different skin surfaces respectively.

Brief Description of Drawings

[0026] [Figure 1] It is a front perspective view for explaining a conventional cryogenic cooling device. [Figure 2] It is a rear perspective view for explaining a conventional cryogenic cooling device. [Figure 3] It is a rear view showing a state where the rear panel is removed to explain the configuration of the cryogenic cooling device for dental treatment according to an exemplary embodiment of the present invention. [Figure 4] It is a block diagram for explaining the configuration of the control unit of the cryogenic cooling device for dental treatment. [Figure 5]This is a block diagram illustrating the cooling gas injection device of the cryogenic cooling device for dental treatment. [Figure 6] This is a block diagram illustrating the cooling gas flow path conversion device for the aforementioned cryogenic cooling device for dental treatment. [Modes for carrying out the invention]

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

[0028] In describing embodiments of the present invention, if a specific description of known technology related to the present invention is deemed to obscure the gist of the invention, such detailed description will be omitted. Furthermore, terms used later are defined in consideration of the function of the present invention, and these may vary depending on the intent or conventions of the user or operator. Therefore, their definitions should be based on the overall content of this specification. Terms used in the detailed description are solely for the purpose of describing embodiments of the present invention and should not be restrictive. Unless explicitly used elsewhere, singular expressions include the meaning of plural expressions. In this description, expressions such as “includes” or “equipment” are intended to indicate certain characteristics, numbers, steps, actions, elements, some or a combination thereof, and should not be interpreted as excluding the existence or possibility of one or more other characteristics, numbers, steps, actions, elements, some or a combination thereof other than those described.

[0029] Furthermore, when describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc., may be used. These terms are used to distinguish a component from other components, and the terms do not limit the essence, procedure, or order of the component.

[0030] Figures 1 and 2 are a front perspective view and a rear perspective view, respectively, illustrating a conventional cryogenic cooling system.

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

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

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

[0034] Figure 3 is a rear view showing the configuration of the cryogenic cooling device for dental treatment with the rear panel removed.

[0035] Referring to Figure 3, an exemplary embodiment of the present invention of a cryogenic cooling device 1 for dental treatment may include 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 which adjusts the supply amounts of the first coolant and the second coolant, converts the first coolant and the second coolant into a first cooling gas and a second cooling gas, respectively, and then mixes and supplies them together, 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 can both be mounted on a tank mounting section 20 located at the lower rear of the main frame 10, and a travel section 30 for moving the cryogenic cooling device 1 for dental treatment can be installed on the underside of the main frame 10. A power supply unit 40 for supplying power to the cryogenic cooling device 1 for dental treatment can be provided on the side of the lower frame of the tank mounting section 20.

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

[0038] Furthermore, the control unit 50 includes a mode in which it operates automatically according to a pre-set protocol and a mode in which it operates according to commands received from the user according to the user operation mode. In user mode, it stores the 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] Furthermore, the control unit 50 can be configured to optimize the electrical signals and power supply connectors between each component and the control unit, enabling efficient control and power supply. Here, the control unit may include various devices capable of processing data, such as a processor. Here, "processor" can mean a data processing device embedded in hardware, for example, having a physically structured circuit to perform a function expressed by code or instructions contained in a program. Examples of such data processing devices embedded in hardware include microprocessors, central processing units (CPUs), processor cores, multiprocessors, ASICs (application-specific integrated circuits), and FPGAs (field programmable gate arrays), 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 connected to the first storage tank fixing part 110 and the second storage tank fixing part 210, respectively, and fixed on the tank mounting part 20.

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

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

[0043] In exemplary embodiments, the first coolant may be low-temperature, high-pressure liquefied carbon dioxide (CO2), and the second coolant may 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 may be low-temperature, high-pressure gaseous carbon dioxide (CO2), and the second coolant may be low-temperature, high-pressure gaseous nitrogen (N).

[0044] The control unit 50 can be located on the upper side of the main frame 10 and can adjust the supply amount of the first coolant and the supply amount of the second coolant so that the first coolant and the second coolant are mixed in different ratios.

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

[0046] Figure 4 is a block diagram illustrating the configuration of the control unit for the cryogenic cooling device used in dental treatment.

[0047] Referring to Figure 4, the control unit 50 may include first and second heater units 190 and 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 and 260 for measuring the temperature and pressure of the first cooling gas and the second cooling gas; first and second pressure adjustment units 180 and 280 for adjusting the pressure of the first cooling gas and the second cooling gas; first and second temperature adjustment units 170 and 270 for adjusting the temperature of the first cooling gas and the second cooling gas; and a cooling gas mixing unit 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 be moved to the control unit 50 via the first coolant supply line 130 through the first coolant adapter 120 and the first outlet valve 125, and after being temporarily housed in the first coolant housing section 150 provided inside the control unit 50, it can be converted into the first cooling gas via the first heater section 190.

[0049] Similarly, the second coolant stored in the second coolant storage tank 200 can also be moved 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 after being temporarily housed in the second coolant housing section 250 provided inside the control unit 50, it can be converted into the second cooling gas via the second heater section 290.

[0050] In other words, the present invention allows for adjustment of the thermodynamic phases (temperature, pressure) of the first and second coolants in accordance with the paths along which the first and second coolants move. By selectively driving each component of the cooling device, namely the heater units 190, 290, the pressure adjustment units 180, 280, and the temperature adjustment units 170, 270, or by driving them in conjunction with each other, control of the thermodynamic phase of the coolants by heating or cooling is possible.

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

[0052] In one embodiment, the heater sections 190, 290, pressure regulating sections 180, 280, and temperature regulating sections 170, 270 can each consist of a heat transfer mediating structure between the coolant and the thermoelectric element, centering on heating control based on the thermoelectric element. Furthermore, the heater sections 190, 290, pressure regulating sections 180, 280, and temperature regulating sections 170, 270 can each include a nozzle structure that can optimize the coolant injection amount and the Joule-Thomson effect. Here, the Joule-Thomson effect is the phenomenon in which the temperature of a compressed gas decreases when it expands. It is a change in temperature related to the thermodynamic phase consisting of pressure and temperature, and is a phenomenon applied when liquefying air or when cooling with a refrigerant. When a restrictor such as an orifice is inserted into a fluid flow path, the temperature of the fluid decreases on the back side of the restrictor. When a gas undergoes free expansion, that is, adiabatic expansion without any work exchange with the outside, its internal energy remains largely unchanged. This phenomenon is particularly relevant in gas liquefaction devices where adiabatic free expansion is used to achieve low temperatures.

[0053] Next, the first cooling gas and the second cooling gas 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, with their pressure and temperature adjustable via the first and second heater units 190 and 290 and the first and second control valves 155 and 255, respectively.

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

[0055] In one embodiment, when the first coolant is low-temperature, high-pressure liquefied carbon dioxide (CO2), 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, when the first coolant is low-temperature, high-pressure gaseous carbon dioxide (CO2), the first cooling gas can be formed by adjusting the temperature and pressure rather than by a phase change of the first coolant. Similarly, 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 by a phase change of the second coolant.

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

[0058] Referring to Figure 5, the cooling gas injection device 500 may include a main body case 505, a cooling gas supply line 510 connected to the control unit 50 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, the cooling gas flow rate control unit 530 can control the flow rate of the cooling gas by adjusting the size of the injection port of the cooling gas injection nozzle 540.

[0059] In an exemplary embodiment, the temperature of the mixed cooling gas injected via the cooling gas injection device 500 can be controlled to a temperature range of -40°C to 10°C at the treatment site of the patient, preferably a temperature range of -20°C to 10°C at the treatment site of the patient.

[0060] Figure 6 is a block diagram illustrating the cooling gas flow path conversion device for the cryogenic cooling device used in dental treatment.

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

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

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

[0064] In other words, the first cooling treatment unit 555 can be provided to receive the temperature reduction transmitted by the mixed cooling gas that has moved through the first flow channel forming unit 553, and to perform cooling treatment on the patient through direct surface contact, and the second cooling treatment unit 559 can be provided to perform cooling treatment on the patient by directly transmitting the temperature reduction transmitted by the direct injection of the mixed cooling gas that has moved through the second flow channel forming unit 557.

[0065] On the other hand, Figure 6 shows that the cooling gas flow path conversion device is detachably coupled to the main body case 505, but the concept of the present invention is not necessarily limited to this, and the cooling gas flow path conversion device may be formed integrally with the main body case 505.

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

[0067] The cooling treatment cover 560 may be made of polyethylene, polypropylene, or a combination thereof, and multiple covers may be provided to be replaced each time the patient being treated is changed.

[0068] In one embodiment, the cooling treatment cover 560 can be manufactured 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 channel forming section 553.

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

[0070] Similar to the cooling treatment cover 560, the cooling treatment cover chip can also be made of polyethylene, polypropylene, or a combination thereof, and multiple chips may be provided so that they can be replaced each time the patient being treated changes. However, unlike the cooling treatment cover 560, the cooling treatment cover chip can be manufactured to a size that can cover both the outer surface of the second cooling treatment section 559 and the outer surface of the adjacent second channel forming section 557.

[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 pain relief effect on the patient by completely preventing pain-inducing nerve fibers from acting.

[0072] Furthermore, the cryogenic 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 facial skin or oral skin of the patient being treated.

[0073] On the other hand, an exemplary embodiment of the present invention of a cryogenic cooling device 1 for dental treatment may include a first cooling treatment unit 555 in which the cooling gas is not directly injected and the cooling treatment is performed by direct surface contact after receiving the temperature reduction from the cooling gas, and a second cooling treatment unit 559 in which the cooling gas is directly injected. Cooling treatment can be performed on the skin area inside the patient's oral cavity via the first cooling treatment unit 555, and on the skin area of ​​the patient's face via the second cooling treatment unit 559. Therefore, damage to the skin of the patient's face or inside the oral cavity can be minimized, and cooling treatment can be performed in a manner suitable for each of the different skin surfaces.

[0074] However, the concept of the present invention is not necessarily limited thereto, and apparatus according to exemplary embodiments of the present invention can be applied to a variety of products or technical fields other than those described above.

[0075] Although various embodiments of the present invention have been described in detail above, a person with ordinary skill in the art to which the present invention belongs will understand that various modifications are possible to the above embodiments without departing from the scope of the present invention. Therefore, the scope of the rights of the present invention should not be limited to the above embodiments, but should be defined not only by the claims described later, but also by equivalent claims, etc. [Explanation of Symbols]

[0076] 10 Mainframes 20 Tank mounting section 30 Running section 40 Power supply section 50 Control Unit 100, 200 First and second coolant storage tanks 120, 220 First and second coolant adapters 125, 225 First and second outlet valves 130, 230 First and second coolant supply lines 140, 240 First and second supply line connection 150, 250 First and second coolant housing sections 155, 255 First and second control valves 160, 260 First and second sensor sections 170, 270 First and second temperature control units 180, 280 First and second pressure regulating units 190, 290 First and second heater sections 300 Cooling gas mixing section 310 Cooling gas supply unit 500 Cooling gas injection system 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 Third Cooling Gas Supply Line 553, 557 First and second channel forming sections 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 is connected to the first coolant storage tank and the second coolant storage tank, adjusts the supply amounts of the first coolant and the second coolant, converts the first coolant and the second coolant into a first cooling gas and a second cooling gas, respectively, and then mixes them together before supplying them. The system includes a cooling gas injection device for injecting a mixed cooling gas supplied from the control unit, The control unit, A heater unit 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 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 control unit for adjusting the temperatures of the first cooling gas and the second cooling gas, A cooling gas mixing unit for mixing the first cooling gas and the second cooling gas, Includes, The control unit is characterized by adjusting the supply amount of the first coolant and the supply amount of the second coolant so that the mixing ratio of the first coolant and the second coolant is set, wherein the cryogenic cooling device for dental treatment.

2. 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. The cryogenic cooling device for dental treatment according to claim 1, characterized in that the first cooling gas and the second cooling gas are formed by vaporizing the first coolant and the second coolant, respectively.

3. 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. The cryogenic cooling device for dental treatment according to claim 1, characterized in that the first cooling gas and the second cooling gas are formed by heating and raising the temperature of the first coolant and the second coolant, respectively.

4. The cryogenic cooling device for dental treatment according to claim 1, characterized in that the mixing ratio of the first cooling gas and the second cooling gas is 1:

1.

5. The cryogenic cooling device for dental treatment according to claim 1, characterized in that the first cooling gas is mixed to have a higher content than the second cooling gas.

6. The cryogenic cooling device for dental treatment according to claim 1, characterized in that the first cooling gas is mixed to have a lower content than the second cooling gas.

7. The cooling gas injection device, The main case and A cooling gas supply line connected to the control unit through which the mixed cooling gas moves, A cooling gas flow control unit for controlling the flow rate of the mixed cooling gas, The mixture includes a cooling gas injection nozzle from which the cooling gas is injected, The cryogenic cooling device for dental treatment according to claim 1, characterized in that the cooling gas flow rate control unit controls the flow rate of the cooling gas by adjusting the size of the nozzle opening of the cooling gas injection nozzle.

8. The cooling gas injection device, The system further includes a cooling gas flow path conversion device for converting the flow paths of the mixed cooling gas 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. The cryogenic cooling device for dental treatment according to claim 7, characterized in that the first cooling treatment unit does not directly inject the mixed cooling gas, and the second cooling treatment unit directly injects the mixed cooling gas.

9. The cryogenic cooling device for dental treatment according to claim 8, characterized in that the cooling gas flow path conversion device is detachably coupled to the main body case.

10. The cooling gas injection device includes a cooling treatment cover that covers at least partially the outer surface of the first cooling treatment unit. The cryogenic cooling device for dental treatment according to claim 8, characterized in that the cooling treatment cover is made of polyethylene, polypropylene, or a combination thereof.

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