Precise intelligent pressurized flexible external cooling device for knee joints

Abstract

The present invention provides a precise intelligent pressurized flexible external refrigeration device for knee joints, which relates to the technical field of medical equipment, and solves the technical problems in the prior art that the cooling effect of using ice bags or ice buckets to cool the patient's knee joints is not ideal, and the ice cubes need to be replaced regularly, which is labor-intensive. The device includes a water storage and heat dissipation water tank, a refrigeration module and a water pump, wherein the water storage and heat dissipation water tank, the refrigeration module and the water pump are connected through a circulation pipeline, the refrigeration module can be attached to the bladder part of the patient's knee joint and the refrigeration module can be wrapped around the knee joint; the refrigeration module can realize icing for the knee joint; the water storage and heat dissipation water tank is used to receive hot water from the refrigeration module and dissipate the hot water at the same time; the water pump can flow the dissipated water in the water storage and heat dissipation water tank into the refrigeration module; the refrigeration module is a combinable mosaic module structure. The present invention is used for pressurized icing of knee joints.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a precise intelligent pressurized flexible external refrigeration device for knee joints. Background Art

[0002] Ice compress is widely used in clinical practice. It is currently recognized as a very effective and necessary method for treating acute knee injuries and early pain and swelling after surgery, and is recommended by clinical guidelines. In clinical practice, ice compress is mainly used continuously within 24-48 hours after injury or surgery (but it needs to be removed for half an hour after every 2 hours to prevent frostbite); or applied half an hour after functional training. The effect of ice compress is mainly through cold stimulation, which causes local capillaries to contract and inhibit blood circulation, thereby reducing postoperative bleeding; at the same time, local cooling inhibits the local metabolic level after injury, reduces the accumulation of local inflammatory substances, thereby reducing inflammatory reactions, and reducing or inhibiting edema; at the same time, ice compress can also reduce the rate of nerve conduction and the decline in neuronal activity, relieve postoperative pain, and prevent muscle spasms.

[0003] At present, medical staff usually use ice bags or ice buckets filled with ice cubes to ice the patient's knee joint, but this type of ice compress often has the following problems: the ice bag cannot be fixed to the knee joint and is easy to fall off; the night ice compress requires the accompanying person to remove the ice compress regularly; the cooling effect of the patient's knee joint by ice bags or ice buckets is relatively poor, the cooling is uncontrollable, and the cooling area is imprecise; the pressurization area of ​​the ice bucket is uncontrollable, and the pressurization degree is uncontrollable; the nurse changes the ice bag frequently, and the time to observe the effect of the ice compress is long, the workload is large, etc. If the ice compress needs to be continued for 24 hours, the workload of replacing ice cubes is large and difficult to continue; if the ice compress time is too long, there is a risk of frostbite, nerve damage, etc., and the ice compress needs to be removed regularly and re-applied after rewarming. Due to the existence of the above phenomena, it is difficult for existing medical ice bags or ice buckets to achieve the ideal situation of continuous ice compress for 24 hours while effectively avoiding frostbite complications. Summary of the invention

[0004] The purpose of the present invention is to provide a precise, intelligent, pressurized, flexible external refrigeration device for the knee joint, so as to solve the technical problems in the prior art that the cooling effect of the patient's knee joint using ice bags or ice buckets is not ideal, the ice cubes need to be replaced regularly, and the workload is large. The many technical effects that can be produced by the preferred technical scheme among the many technical schemes provided by the present invention are detailed as follows.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention provides a precise intelligent pressurized flexible external refrigeration device for knee joints, comprising a water storage and heat dissipation water tank, a refrigeration module and a water pump, wherein the water storage and heat dissipation water tank, the refrigeration module and the water pump are connected through a circulation pipeline, the refrigeration module can be attached to the bladder part of the patient's knee joint and the refrigeration module can be wrapped around the knee joint;

[0007] The refrigeration module can provide ice compress for the knee joint;

[0008] The water storage and heat dissipation water tank is used to receive hot water from the refrigeration module and dissipate the heat from the hot water;

[0009] The water pump can flow the cooled water in the water storage and heat dissipation water tank into the refrigeration module;

[0010] The refrigeration module is a combinable mosaic module structure.

[0011] Optionally, the refrigeration module includes at least one refrigeration component, a temperature sensor and a temperature control system. Adjacent refrigeration components are connected in sequence through connecting pipes. Each refrigeration component is connected to a temperature sensor. The temperature sensor and the refrigeration component are both connected to the temperature control system. The temperature sensor can sense the temperature signal of the refrigeration component and transmit the temperature signal to the temperature control system. The temperature control system can receive the temperature signal and control the temperature value of the refrigeration component.

[0012] Optionally, the refrigeration component includes a refrigeration semiconductor, a cooling fin, a heat sink and a circulating water tank, the refrigeration semiconductor is connected to the temperature sensor and the temperature control system through wires, the cooling fin is connected to one end of the refrigeration semiconductor, the heat sink is connected to the other end of the refrigeration semiconductor and the heat sink is located in the circulating water tank, and the circulating water tank is connected to the water storage and heat dissipation water tank;

[0013] When the cooling module is attached to the bladder portion of the patient's knee joint, the cooling sheet can directly contact the human skin.

[0014] Optionally, a pressurizing module is further included, which is fixed on the cooling module. The pressurizing module and the cooling module can be wrapped on the knee joint. The pressurizing module can apply pressure to the knee joint through the cooling module and can regulate the pressure on the knee joint.

[0015] Optionally, the pressurizing module comprises a containing bag, a pressurizing airbag and an inflation device, wherein the pressurizing airbag is located inside the containing bag, an outer wall of the containing bag is connected to the refrigeration module, the number of the pressurizing airbags is consistent with the refrigeration component and the position of the pressurizing airbags in the containing bag corresponds to the refrigeration component one by one, the inflation device is respectively connected to each of the pressurizing airbags through a plurality of air pipes, the inflation device can inflate the pressurizing airbags and assist the refrigeration component corresponding to the pressurizing airbag to pressurize the knee joint;

[0016] Alternatively, the number of the pressurized airbag is one, and all the refrigeration components correspond to one pressurized airbag.

[0017] Optionally, the inflation device is an inflation pump or a manually inflatable airbag; a control valve is provided between each of the pressurized airbags and the inflation device.

[0018] Optionally, the containing bag is provided with Velcro.

[0019] Optionally, a pressure sensor and a pressure control system are provided on the refrigeration module, each of the refrigeration components is connected to a pressure sensor, the pressure sensor is connected to the pressure control system, the pressure sensor can transmit the pressure information applied by the refrigeration component on the knee joint to the pressure control system, the pressure control system is connected to the pressurizing module and the pressure control system can control the pressure value applied by the pressurizing module on the knee joint.

[0020] Optionally, an intelligent circuit module is also included.

[0021] Optionally, the shell of the water storage and heat dissipation water tank is made of metal material; the shell of the refrigeration module is made of magnesium alloy material, aluminum alloy material or stainless steel material.

[0022] The present invention provides a kind of accurate intelligent pressurized flexible external refrigeration device for knee joint, the refrigeration module is a mosaic module structure, after miniaturization and micronization, each part is easy to bend, and the flexible connection makes the overall flexibility of the refrigeration module relatively strong, so it can fit well on the knee joint, and at the same time, because the cooling plate is in a solid state, it can accurately cover the required part of the patient, so that the ice compress effect is better, and at the same time, the pressurization module can prevent the whole area from swelling due to exudation, especially it can ensure that the cooling plate accurately inhibits the swelling of the joint capsule, and there is a complete intelligent circuit module on the device, and it can be connected to the background through many wireless and wired methods such as Bluetooth, local area network, base station, etc., to achieve remote control of the device and achieve personalized cooling effect. At the same time, the device itself also has an embedded MCU, which can realize programmed pre-setting. Through the above two control modes, the purpose of timing and automatic cycle ice compress can be achieved to solve the technical problems of unsatisfactory cooling effect of the knee joint of the patient using ice bags or ice buckets for ice compressing and the need to regularly replace ice cubes and large workload in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 is a structural schematic diagram of a precise intelligent pressurized flexible external cooling device for knee joints provided in an embodiment of the present invention;

[0025] Figure 2 This is another structural schematic diagram of the precise intelligent pressurized flexible external cooling device for knee joints provided by an embodiment of the present invention;

[0026] Figure 3 This is another structural schematic diagram of the precise intelligent pressurized flexible external cooling device for knee joints provided by an embodiment of the present invention;

[0027] Figure 4 It is a trajectory diagram of the length of time of periodic icing of the knee joint and the change of water temperature in the external environment during the use of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the prior art;

[0029] Figure 6 It is a block diagram of a precise intelligent pressurized flexible external cooling device for knee joints provided by an embodiment of the present invention;

[0030] In the figure, 1, water storage and heat dissipation water tank; 2, refrigeration module; 21, refrigeration parts; 211, refrigeration semiconductor; 212, circulating water tank; 213, cooling plate; 214, heat sink; 3, water pump; 4, pressurization module; 41, containing bag; 411, inner cover; 412, outer cover; 42, air pump; 43, air pipe; 44, manual inflatable airbag; 45, pressurized airbag; 5, circulating pipe; 6, connecting pipe; 7, intelligent circuit module; 71, display and operation circuit; 72, calculation, control and communication circuit; 73, actuator circuit; 74, sensor circuit; 8, background system; 100, temperature change trajectory of water in water storage and heat dissipation water tank; 200, temperature change trajectory of water tank in the prior art; 300, temperature change trajectory of refrigeration semiconductor. DETAILED DESCRIPTION

[0031] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that, unless otherwise specified, the meaning of "plurality" is two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The present invention provides a precise intelligent pressurized flexible external refrigeration device for a knee joint, comprising a water storage and heat dissipation water tank 1, a refrigeration module 2 and a water pump 3, wherein the water storage and heat dissipation water tank 1, the refrigeration module 2 and the water pump 3 are connected via a circulation pipe 5, the circulation pipe 5 can be a flexible pipe, the refrigeration module 2 can be attached to the bladder part of the patient's knee joint and the refrigeration module 2 can be wrapped around the knee joint; the refrigeration module 2 can realize ice compress for the knee joint; the water storage and heat dissipation water tank 1 is used to receive hot water from the refrigeration module 2 and dissipate the hot water at the same time, and the water storage and heat dissipation water tank 1 dissipates the hot water through natural wind; the water pump 3 can The cooled water in the water storage and heat dissipation tank 1 flows into the refrigeration module 2, and the hot water in the refrigeration module 2 can also flow into the water storage and heat dissipation tank 1. The water pump 3 realizes the circulation of water between the water storage and heat dissipation tank 1 and the refrigeration module 2; the refrigeration module 2 is a combinable mosaic module structure, which is to miniaturize the refrigeration hardware to achieve a flexible effect. The hardness of the mosaic is also convenient for transmitting pressure to ensure the precise positioning of ice and pressurization and improve efficiency. The mosaic module structure can be freely combined according to needs, thereby realizing large-area cooling and pressurization, thereby wrapping the entire knee joint. The present invention provides a precise intelligent pressurized flexible external refrigeration device for the knee joint. The refrigeration module 2 is a mosaic module structure. The flexible effect can be achieved by selecting an appropriate size. According to current tests, the effect can be achieved when the size is less than 6*6cm, so it can fit well on the knee joint. At the same time, since the cooling plate 213 is in a solid state, it can be accurately covered on the required part of the patient, thereby making the ice compress effect better. At the same time, the pressurizing module 4 can prevent the entire area from swelling due to exudation, especially ensuring that the cooling plate 213 can accurately inhibit the swelling of the joint capsule. The refrigeration module 2 is wrapped around the knee joint, so that the refrigeration module 2 is not easy to fall off the knee joint. At the same time, the pressurizing module 4 can accurately transmit the pressure through the pressure transmission of the refrigeration module 2. To the required parts, to avoid the pure flexible material from being concentrated on certain protruding parts due to the irregularity of the human body, the pressure is concentrated, the refrigeration module 2 can achieve rapid refrigeration (5 seconds) and its temperature can be lower than -30°C, which is much lower than the ice-water mixture (4-10°C), and can quickly return to normal temperature and heat (5 seconds). Under the control of the intelligent circuit, the corresponding embedded program and the background software, the ice compress time can be accurately controlled to achieve periodic ice compress, while avoiding the tissue from being in a low temperature state for a long time, and safe ice compress. Its intelligent ice compress mechanism reduces the workload of nurses to replace ice cubes periodically, so as to solve the technical problems in the prior art that the cooling effect of the patient's knee joint using ice bags or ice buckets is not ideal and the ice cubes need to be replaced regularly, which is labor-intensive.

[0035] As an optional implementation, the refrigeration module 2 includes at least one refrigeration component 21, a temperature sensor and a temperature control system. Adjacent refrigeration components 21 are connected in sequence through connecting pipes 6. The connecting pipes 6 can be flexible pipes. The size of the refrigeration components 21 is relatively small. Each refrigeration component 21 is connected to a temperature sensor. The temperature sensor and the refrigeration component 21 are both connected to the temperature control system. The temperature sensor can sense the temperature signal of the refrigeration component 21 and can transmit the temperature signal to the temperature control system. The temperature control system can receive the temperature signal and can control the temperature value of the refrigeration component 21. The temperature control system can control the refrigeration component 21 to reach a minimum temperature of -30°C, which can better ice the knee joint. By adjusting the temperature control system, the working temperature of each refrigeration component 21 can be different, and then the ice compress temperature of each part of the knee joint can be different, which can achieve targeted ice compresses on various parts of the knee joint to maximize the effect.

[0036] The refrigeration component 21 includes a refrigeration semiconductor 211, a cooling plate 213, a heat sink 214 and a circulating water tank 212. The refrigeration semiconductor 211, the cooling plate 213, the heat sink 214 and the circulating water tank 212 are all located in the shell of the refrigeration component 21. The refrigeration semiconductor 211 is connected to a temperature sensor and a temperature control system through wires. The temperature control system can control the working temperature of the refrigeration semiconductor 211. The temperature sensor can sense the working temperature of the refrigeration semiconductor 211. Under the action of electric current, heat transfer will occur at both ends of the refrigeration semiconductor 211, thereby forming a hot and cold end. The cooling plate 213 is connected to the cold end of the refrigeration semiconductor 211. The cooling plate 213 and the refrigeration semiconductor 211 are an integrated structure, or the cooling plate 213 and the refrigeration semiconductor 211 are detachably connected. Before use, the cooling plate 213 can be stored in a sterile environment, and the cooling plate 213 can also be sterilized and disinfected. The structure of the cooling plate 213 The structure conforms to ergonomics, is convenient for being attached to the knee joint and directly contacting the human skin, the cold end of the refrigeration semiconductor 211 absorbs the heat on the cooling plate 213, so that the cooling plate 213 is cooled, and the cooling plate 213 can absorb the heat of the knee joint, that is, the cooling plate 213 provides cold air for the knee joint, the heat sink 214 is connected to the hot end of the refrigeration semiconductor 211 and the heat sink 214 is located in the circulating water tank 212, and the heat in the knee joint is transferred to the heat sink 214 through the cooling plate 213, the cold end and the hot end, the heat sink 214 is immersed in the cold water of the circulating water tank 212, thereby reducing the temperature of the heat sink 214, and at the same time, the cold water in the circulating water tank 212 absorbs heat to form hot water, the circulating water tank 212 is connected to the water storage and heat dissipation water tank 1, the hot water in the circulating water tank 212 enters the water storage and heat dissipation water tank 1, the size of the circulating water tank 212 is much smaller than the size of the water storage and heat dissipation water tank 1, and the shell of the circulating water tank 212 is connected to the pressurization module 4. 2L of water can absorb 90000J of energy, and the temperature rise does not exceed 10°C, thereby ensuring that the temperature of the cooling plate 213 does not exceed 10°C during long-term operation.

[0037] As an optional implementation, it also includes a pressurizing module 4, which is fixed on the cooling module 2. The pressurizing module 4 and the cooling module 2 can be wrapped on the knee joint. The pressurizing module 4 can apply pressure to the knee joint through the cooling module 2 and can regulate the pressure on the knee joint. At the same time, the pressurizing module 4 can also pressurize the entire knee joint to reduce overall tissue fluid infiltration.

[0038] As an optional embodiment, the pressurizing module 4 includes a containing bag 41, a pressurizing airbag 45 and an inflating device. The pressurizing airbag 45 is located inside the containing bag 41. The outer wall of the containing bag 41 is connected to the refrigeration module 2. The number of the pressurizing airbags 45 is consistent with the refrigeration element 21 and the position of the pressurizing airbags 45 in the containing bag 41 corresponds to the refrigeration element 21 one by one. The inflating device is connected to each pressurizing airbag 45 through a plurality of air pipes 43. The air pipes 43 can be flexible tubes. The inflating device can inflate the pressurizing airbag 45 and assist the refrigeration element 21 corresponding to the pressurizing airbag 45 to pressurize the knee joint; or, the number of the pressurizing airbag 45 is one, and all the refrigeration elements 21 correspond to one pressurizing airbag 45. The inflating device is an inflating pump 42 or a manually inflated airbag 44; a control valve is provided between each pressurizing airbag 45 and the inflating device.

[0039] The containing bag 41 includes an inner cover 411 and an outer cover 412, the inner cover 411 and the outer cover 412 are connected, the inner cover 411 is close to the refrigeration component 21, and the outer cover 412 is far away from the refrigeration component 21. The material used for the inner cover 411 is a non-rigid material, such as nylon, cotton cloth, etc.; the material used for the outer cover 412 is a non-elastic material, such as nylon, cotton cloth, metal material, etc.

[0040] When the containing bag 41 wraps around the knee joint, the inflation device is started to inflate the pressurized airbag 45, so that the pressurized airbag 45 pressurizes the corresponding refrigeration component 21, and the refrigeration component 21 pressurizes the part of the knee joint. The amount of gas in the pressurized airbag 45 can determine the pressure applied by the refrigeration component 21 to the knee joint. The more gas in the pressurized airbag 45, the greater the pressure applied by the refrigeration component 21 to the knee joint.

[0041] As an optional embodiment, Velcro is provided on both ends of the containing bag 41, and Velcro is provided on the circulating water tank 212 of the refrigeration module 2, so that the refrigeration module 2 can be fixed to the containing bag 41, and the position of the refrigeration module 2 can be easily adjusted. When the containing bag 41 is wrapped around the knee joint with Velcro or straps, the refrigeration module 2 is also wrapped around the knee joint. This method is convenient for connection and easy to adjust the ice compress pressurization area.

[0042] As an optional implementation, a pressure sensor and a pressure control system are provided on the refrigeration module 2, and each refrigeration component 21 is connected to a pressure sensor, which is connected to the pressure control system. The pressure sensor can transmit the pressure information applied by the refrigeration component 21 to the knee joint to the pressure control system. The pressure control system is connected to the inflation device and the pressure control system can control the pressure value applied by the inflation device to the knee joint, that is, the pressure control system controls the inflation device to inflate the pressurized airbag 45.

[0043] As an optional implementation, it also includes an intelligent circuit module 7, which includes a display and operation circuit 71, an operation & control & communication circuit 72, an actuator circuit 73 and a sensor circuit 74, and also includes a background system 8. The intelligent circuit module 7 and the background system 8 are wirelessly connected. The intelligent circuit module 7 and the background system 8 can set the ice compress duration and the heat dissipation duration to achieve periodic cooling. When applying ice compress at night, there is no need for the accompanying personnel to remove the ice compress regularly. At the same time, it can also prevent the ice compress time from being too long, causing the risk of frostbite or nerve damage to the patient.

[0044] As an optional implementation, the shell of the water storage and heat dissipation water tank 1 can be made of metal materials, namely magnesium alloy, aluminum alloy, stainless steel, etc., which can facilitate faster heat dissipation of water in the water storage and heat dissipation water tank 1 and maintain a temperature close to the external environment. The function of the water storage and heat dissipation water tank 1 is to receive hot water from the circulating water tank 212 and dissipate the heat. The water in the water storage and heat dissipation water tank 1 enters the circulating water tank 212 under the action of the water pump 3.

[0045] The shell of the refrigeration module 2 can be made of magnesium alloy material, aluminum alloy material or stainless steel material, that is, the shell of the refrigeration component 21 can be made of magnesium alloy material. Magnesium alloy has low density, light weight, high specific strength, large specific elastic modulus, good heat dissipation, good specific performance, good shock absorption performance, good electrical and thermal conductivity, good process performance, greater impact load bearing capacity than aluminum alloy, and good resistance to corrosion by organic matter and alkali.

[0046] The present invention also has a plurality of sensor modules, circuit boards and corresponding cloud systems and APP control software to realize intelligent remote control.

[0047] The present invention is a natural heat dissipation forced circulation cooling mode, which uses water cooling plus the refrigeration capacity of the unipolar refrigeration semiconductor 211 to form a very strong refrigeration capacity, and the achievable temperature range is -30 to 24°C, which meets the temperature requirements of the knee joint ice compress. The present invention is suitable for periodic refrigeration needs. The water in the water storage and heat dissipation water tank 1 mainly serves as a heat storage function during the refrigeration time. The heat volume ratio of the liquid (water) is large, and the heat generated by the refrigeration module 2 is stored in the liquid of the water storage and heat dissipation water tank 1. At the same time, it has a heat dissipation effect, and the hot water temperature in the water storage and heat dissipation water tank 1 is higher than the external environment temperature, and heat is released to the external environment. After calculating the heat generated by the refrigeration module 2 and the volume of water, the present invention can achieve sustainable periodic refrigeration needs with the minimum volume or water. Here, according to the cycle of 15 minutes of ice compress and 2 hours of normal temperature conditions, 3L of water can be used to meet the stable refrigeration of 100W refrigeration power, and the maximum temperature in the water storage and heat dissipation water tank 1 is not higher than 10°C of the ambient temperature.

[0048] Compared with the common air forced convection cooling mode, natural circulation cooling mode, forced circulation cooling mode, and forced circulation spray cooling mode, the cooling method of the present invention has the advantages of simple structure, smallest device, no noise, smallest unit refrigeration module 2 volume, and low cost. The heat storage / heat dissipation location is transferred from the cooling end to the water storage and heat dissipation water tank 1 at the non-cooling end, which can minimize the fit of the device to the human body.

[0049] The circulating water tank 212 may also be a micro refrigeration module, that is, the circulating water tank 212 in the refrigeration module 2 may be integrated into a semiconductor in the form of an integrated circuit, thereby realizing the development of the application end from miniaturization to micro-miniaturization.

[0050] Simple structure: no special heat dissipation device (refrigeration end and heat dissipation / heat storage tank), no fan, and no other vaporizing material is required;

[0051] Smallest device: This is reflected in the miniaturization of the refrigeration module 2 and the elimination of the volume of the special heat dissipation device and the fan.

[0052] Low noise: no fan noise, only the slight sound of the water pump 3;

[0053] The unit refrigeration system has the smallest volume: Applicable to periodic refrigeration, the number of components and the reduction of component volume lead to the smallest overall system volume.

[0054] Low cost: Due to the reduction of components, simplification of structure, and the same materials and other refrigeration systems, the cost can be reduced.

[0055] The refrigeration module 2 is supported by the circulating water tank 212 below, so the whole module can be minimized. At present, the semiconductor refrigeration module is combined with the water tank. Another implementation method can further miniaturize the refrigeration module, that is, using semiconductor technology to integrate the water tank into the chip, thereby further miniaturizing the refrigeration module.

[0056] Depend on Figure 4 It can be seen that: the temperature change trajectory 100 of the water in the water storage and heat dissipation water tank fluctuates back and forth in the ice time period and the normal time period; the temperature change trajectory 200 of the water tank in the prior art gradually decreases with the extension of time, but will not be lower than 0°C; the temperature change trajectory 300 of the refrigeration semiconductor, when cooling, the temperature decreases and the temperature can be lower than 0°C; when not cooling, the temperature rises. The present invention utilizes the high heat capacity characteristic of water, and stores heat in the water storage and heat dissipation water tank 1 during cooling, which can basically ensure that the water temperature rise in the water storage and heat dissipation water tank is within a reasonable range. At the same time, the water in the water storage and heat dissipation water tank exchanges heat with the external environment to reduce the water temperature to the external environment temperature.

[0057] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A precise intelligent pressurized flexible external cooling device for knee joints, characterized in that: It comprises a water storage and heat dissipation water tank (1), a refrigeration module (2) and a water pump (3), wherein: The water storage and heat dissipation water tank (1), the refrigeration module (2) and the water pump (3) are connected via a circulation pipe (5); the refrigeration module (2) can be attached to the bladder portion of the patient's knee joint and the refrigeration module (2) can be wrapped around the knee joint; The refrigeration module (2) can provide ice compress for the knee joint; The water storage and heat dissipation water tank (1) is used to receive hot water from the refrigeration module (2) and dissipate the heat of the hot water; The water pump (3) can flow the cooled water in the water storage and heat dissipation water tank (1) into the refrigeration module (2); The refrigeration module (2) is a combinable mosaic module structure; The refrigeration module (2) comprises at least one refrigeration element (21), a temperature sensor and a temperature control system, the adjacent refrigeration elements (21) are connected in sequence via connecting pipes (6), each refrigeration element (21) is connected to a temperature sensor, the temperature sensor and the refrigeration element (21) are both connected to the temperature control system, the temperature sensor can sense a temperature signal of the refrigeration element (21) and can transmit the temperature signal to the temperature control system, and the temperature control system can receive the temperature signal and can control the temperature value of the refrigeration element (21); The refrigeration element (21) comprises a refrigeration semiconductor (211), a cooling fin (213), a heat sink (214) and a circulating water tank (212); the refrigeration semiconductor (211) is connected to the temperature sensor and the temperature control system via electric wires; the cooling fin (213) is connected to one end of the refrigeration semiconductor (211); the heat sink (214) is connected to the other end of the refrigeration semiconductor (211); and the heat sink (214) is located in the circulating water tank (212); the circulating water tank (212) is in communication with the water storage and heat dissipation water tank (1); When the refrigeration module (2) is attached to the bladder portion of the patient's knee joint, the cooling sheet (213) can directly contact the human skin; It also comprises a pressurizing module (4), the pressurizing module (4) being fixed on the cooling module (2), the pressurizing module (4) and the cooling module (2) being capable of being wrapped around the knee joint, the pressurizing module (4) being capable of applying pressure to the knee joint through the cooling module (2) and being capable of regulating the pressure on the knee joint; The pressurizing module (4) comprises a containing bag (41), a pressurizing airbag (45) and an inflation device, wherein the pressurizing airbag (45) is located inside the containing bag (41), and the outer wall of the containing bag (41) is connected to the refrigeration module (2), the number of the pressurizing airbags (45) is consistent with the refrigeration component (21), and the position of the pressurizing airbags (45) in the containing bag (41) corresponds to the refrigeration component (21) one by one, and the inflation device is respectively connected to each of the pressurizing airbags (45) through a plurality of air tubes (43), and the inflation device can inflate the pressurizing airbag (45) and assist the refrigeration component (21) corresponding to the pressurizing airbag (45) to pressurize the knee joint; Alternatively, the number of the pressurized airbag (45) is one, and all the refrigeration components (21) correspond to one pressurized airbag (45).

2. The knee joint precise intelligent pressurized flexible external cooling device according to claim 1 is characterized in that: The inflation device is an inflation pump (42) or a manually inflatable airbag (44); a control valve is provided between each pressurized airbag (45) and the inflation device.

3. The knee joint precise intelligent pressurized flexible external cooling device according to claim 1 is characterized in that: The containing bag (41) is provided with Velcro.

4. The knee joint precise intelligent pressurized flexible external cooling device according to claim 1 is characterized in that: The refrigeration module (2) is provided with a pressure sensor and a pressure control system, each of the refrigeration components (21) is connected to a pressure sensor, the pressure sensor is connected to the pressure control system, the pressure sensor can transmit pressure information applied by the refrigeration component (21) to the knee joint to the pressure control system, the pressure control system is connected to the pressurizing module (4) and the pressure control system can control the pressure value applied by the pressurizing module (4) to the knee joint.

5. The knee joint precise intelligent pressurized flexible external cooling device according to claim 1 is characterized in that: It also includes an intelligent circuit module (7).

6. The knee joint precise intelligent pressurized flexible external cooling device according to claim 1 is characterized in that: The outer shell of the water storage and heat dissipation water tank (1) is made of metal material; the outer shell of the refrigeration module (2) is made of magnesium alloy material, aluminum alloy material or stainless steel material.

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