Cold compress analgesia device for cosmetic surgery

Abstract

The utility model discloses a cold compress analgesia device for cosmetic surgery, and belongs to the technical field of medical instruments. The device comprises a flexible substrate, a plurality of cold compress units and temperature control boxes symmetrically arranged on the two sides of the flexible substrate. The cold compress unit comprises a flexible bag body and a connecting part, and the bag body is filled with a cold compress medium. And the connecting part is detachably inserted into the mounting groove of the temperature control box and is thermally connected with the temperature control assembly in the box, so that the temperature of the medium is actively adjusted. When the cold compress unit is folded to expose the treatment area, the first magnetic piece and the second magnetic piece are attracted to achieve limiting. The problems that the temperature of a traditional precooling medium is uncontrollable and the effect is attenuated are solved through active temperature control; the problems that the folding unit is prone to falling back and surgical operation is interfered are solved through magnetic attraction limiting, and continuous and stable intraoperative analgesia and a clear and interference-free surgical field are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to a cold compress analgesic device for cosmetic surgery. BACKGROUND

[0002] Light heat treatment technology such as laser is widely used in the field of cosmetic medicine, however, the heat generated during treatment not only causes pain and discomfort of patients, but also may cause adverse reactions such as postoperative blister and pigmentation due to thermal damage. Therefore, cold compress cooling during and after operation is a common means to alleviate the pain of patients and prevent redness, blister and pigmentation. The common cold compress methods in the clinic mainly include cold air blower blowing and traditional ice bag cold compress. The cold air blower has the problems of wind force stimulating the nasal cavity to cause discomfort and frequent position moving, and the traditional large-area ice bag cannot accurately avoid the local exposed area during operation. Therefore, a partitioned and foldable laser treatment intraoperative cooling analgesic device is disclosed in Chinese patent CN223453388U, which carries multiple independently foldable cold compress units on a flexible base, realizes alternating cold compress and treatment in partitions during operation, and improves the flexibility of treatment to a certain extent.

[0003] However, the above-mentioned prior art still has significant limitations in actual clinical application. First, in terms of temperature control persistence, the cold compress unit relies on pre-cooled gel medium for passive heat exchange. According to the principle of thermodynamic equilibrium, with the prolongation of operation time and the continuous absorption of skin heat, the medium temperature will rise rapidly, resulting in that effective cold compress analgesic effect cannot be provided in the second half of the operation, and the cold compress temperature cannot be accurately adjusted according to the strength of the treatment energy. Secondly, in terms of structural stability, the cold compress unit of the device is only hung by the connecting edge of the flexible material after being folded, and lacks effective limiting and fixing structure. When the doctor operates the laser hand tool with one hand, the folded cold compress unit is easy to accidentally fall back due to gravity, patient position change or instrument error, which blocks the treatment vision or interferes with the laser light path, and increases the risk of misoperation; in addition, when the treatment is reset and closed, there is also a lack of positioning mechanism between the units, which is easy to cause coverage gap or position deviation. Therefore, it is urgent to improve the existing technology to solve the technical problems of uncontrollable temperature, unsustainable cold effect of the existing partitioned cold compress device, poor stability of the folded unit during operation, and easy backfall to block the vision. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the defects of the prior art, and provides a cold compress analgesic device for cosmetic surgery, to solve the problems of uncontrollable temperature, easy attenuation of effect and easy backfall of the folded unit to interfere with the operation of the existing cold compress device.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a cold compress analgesic device for cosmetic surgery, including flexible base and a plurality of cold compress units are connected to the flexible base, the middle part of flexible base has the hollowed area, a plurality of cold compress units cover in the hollowed area and can be folded relative to the flexible base. The cold compress unit includes a flexible bag and a connecting part sealed to one end of the flexible bag, the flexible bag is filled with cold compress medium. The two sides of the flexible base are symmetrically provided with a temperature control box, the temperature control box has a receiving cavity, and a temperature control assembly is installed in the receiving cavity. The side of the temperature control box towards the hollowed area is provided with a mounting groove in communication with the receiving cavity, the connecting part is detachably inserted into the mounting groove, and is in thermal conduction connection with the temperature control assembly, so that the temperature control assembly exchanges heat with the cold compress medium in the flexible bag through the connecting part. The outer surface of the flexible bag is provided with a first magnetic member, and the side of the temperature control box is provided with a second magnetic member. When the cold compress unit is folded, the first magnetic member and the second magnetic member are limited by magnetic adsorption.

[0007] Further, the flexible bag is provided with a third magnetic member at one end away from the connecting part; when the cold compress unit is in a closed state covering the hollowed area, the third magnetic members of the adjacent two cold compress units are attracted to each other.

[0008] Further, the temperature control box further includes a fixing assembly, and an outer side wall of the connecting part is provided with a limiting groove; the fixing assembly includes a spring arranged in a side wall of the mounting groove and a limiting cap abutted by the spring; when the connecting part is inserted into the mounting groove, the limiting cap is clamped into the limiting groove to lock the cold compress unit.

[0009] Further, the temperature control assembly includes a semiconductor refrigeration sheet and a heat conducting member; an installation channel extending into the flexible bag is formed in the connecting part, and the heat conducting member is arranged in the installation channel; one end of the heat conducting member extends into the flexible bag and is in contact with the cold compress medium, and the other end of the heat conducting member is used to be in thermal conduction connection with a cold end of the semiconductor refrigeration sheet when the connecting part is inserted into the mounting groove.

[0010] Further, one end of the heat conducting member in the flexible bag is provided with a heat conducting fin, and the heat conducting fin is immersed in the cold compress medium.

[0011] Further, a heat dissipation window is formed in the side wall of the temperature control box, and a hot end of the semiconductor refrigeration sheet is arranged opposite to the heat dissipation window.

[0012] Further, a temperature sensor is arranged in the cold compress unit, a control circuit board and a power supply are arranged in the temperature control box, and the semiconductor refrigeration sheet and the temperature sensor are electrically connected with the control circuit board.

[0013] Further, the outer surface of the flexible bag body is also provided with a handle, and the handle is located at the adjacent position of the first magnetic member.

[0014] The cold compress analgesic device for cosmetic surgery has the remarkable beneficial effects that: first, the direct and efficient heat conduction path from the cold source to the cold compress medium is constructed through the cooperation of the semiconductor refrigeration assembly in the temperature control box and the plug-in connection part, the active, accurate and continuous control of the cold compress temperature is realized, and the temperature attenuation problem caused by the dependence on the pre-cooled medium is completely overcome; second, the first magnetic member arranged on the outer surface of the cold compress unit and the second magnetic member on the side surface of the temperature control box provide reliable magnetic attraction limiting for the cold compress unit in the folded state, the accidental falling or shaking of the cold compress unit in the operation is effectively prevented, the clarity of the operation field and the stability of the operation are ensured; in addition, the detachable connection design facilitates the replacement and disinfection of the cold compress unit, and the hygiene and use flexibility of the device are improved; the adjacent units are adsorbed through the end magnetic members in the closed state, the flatness and tightness of the cold compress coverage are ensured; the overall device has reasonable structure and convenient operation, and the effect and efficiency of the cold compress analgesia in the cosmetic surgery are significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is an overall structure schematic diagram of the cold compress unit in the closed state of the cold compress analgesic device for cosmetic surgery.

[0016] Figure 2 It is an overall structure schematic diagram of the cold compress unit in the slightly open state of the cold compress analgesic device for cosmetic surgery.

[0017] Figure 3 It is an overall structure schematic diagram of the cold compress unit in the completely open and locked state of the cold compress analgesic device for cosmetic surgery.

[0018] Figure 4 It is a split structure schematic diagram of the cold compress analgesic device for cosmetic surgery.

[0019] Figure 5 It is an overall structure schematic diagram of the cold compress unit.

[0020] Figure 6 It is a cross-sectional structure schematic diagram of the cold compress unit.

[0021] In the drawings, various marks are:

[0022] 1. Flexible substrate; 2. Cooling unit; 21. Flexible bag body; 22. Connecting part; 221. Limiting groove; 23. Handle; 3. Temperature control box; 31. Mounting groove; 32. Fixing component; 33. Heat dissipation window; 41. Semiconductor cooling chip; 42. Heat-conducting component; 421. Heat-conducting fins; 51. First magnetic component; 52. Second magnetic component; 53. Third magnetic component. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Existing folding cold compress devices rely on pre-cooling gel, which suffers from problems such as uncontrollable intraoperative temperature, easily diminished effectiveness, and the cold compress unit easily shaking and falling back after folding, interfering with surgical procedures. Therefore, to improve upon these problems, this application provides a cold compress analgesia device for cosmetic surgery, such as... Figures 1 to 6 As shown, the device includes a flexible substrate 1 and several cold compress units 2 connected to the flexible substrate 1. The flexible substrate 1 has a hollow area in the middle, and the several cold compress units 2 cover the hollow area and can be folded relative to the flexible substrate 1. The cold compress unit 2 includes a flexible bag body 21 and a connecting part 22 sealed to one end of the flexible bag body 21. The flexible bag body 21 is filled with a cold compress medium. Temperature control boxes 3 are symmetrically arranged on both sides of the flexible substrate 1. The temperature control box 3 has a receiving cavity, in which a temperature control component is installed. The side of the temperature control box 3 facing the hollow area has a mounting groove 31 that communicates with the receiving cavity. The connecting part 22 is detachably inserted into the mounting groove 31 and is thermally connected to the temperature control component, so that the temperature control component exchanges heat with the cold compress medium in the flexible bag body 21 through the connecting part 22. The flexible bag 21 has a first magnetic element 51 on its outer surface away from human skin, and a second magnetic element 52 on its temperature control box 3. When the cold compress unit 2 is folded, it is limited by the magnetic attraction between the first magnetic element 51 and the second magnetic element 52.

[0026] The flexible base 1 is made of biocompatible flexible materials such as medical-grade silicone or polyurethane. Its size is designed to fit common cosmetic treatment areas such as the face and neck. The shape of the central hollow area matches the contour of the treatment area, ensuring full exposure. The number of cooling units 2 is rationally arranged according to the size of the hollow area, with reserved gaps between adjacent units to ensure independent folding capability. The flexible bag 21 uses a medical-grade flexible sealing film and is filled with medical gel or phase-change cooling medium, which combines good thermal stability and biocompatibility. The connecting part 22 is made of thermally conductive metals such as copper and aluminum, and is sealed to the flexible bag 21 through a heat-sealing process to prevent leakage of the cooling medium. The temperature control box 3 is made of lightweight medical plastic and is symmetrically fixed on both sides of the flexible base 1. The size of its cavity is adapted to the installation of the temperature control components. The cross-section of the mounting groove 31 matches the connecting part 22, ensuring a tight fit after insertion to guarantee efficient heat conduction. The first magnetic component 51 and the second magnetic component 52 are made of small neodymium iron boron permanent magnets and are fixed by medical adhesive. The adsorption force needs to be balanced between limiting stability and folding operability to avoid being too strong or too weak.

[0027] Before use, the connecting part 22 is inserted into the mounting slot 31 to establish heat conduction. The temperature of the cooling medium is adjusted by the temperature control component. Then, the flexible base 1 is attached and fixed to the periphery of the patient's treatment area, so that the cooling unit 2 covers the area to be cooled. When local surgery is required, the corresponding cooling unit 2 is flipped until the first magnetic component 51 and the second magnetic component 52 are attracted and limited, exposing the treatment area. After treatment, the cooling unit 2 is reset. Compared with the prior art, this embodiment solves the problem of easy temperature rise and unsustainable effect of passive cooling medium by active heat conduction through the temperature control component and the cooling unit 2; the magnetic attraction limitation avoids the risk of the cooling unit accidentally falling back and obstructing the field of vision after being flipped, thus improving the safety and stability of the surgery.

[0028] Alternatively, in some embodiments, such as Figures 1 to 3 As shown, a third magnetic element 53 is provided at the end of the flexible bag 21 away from the connecting part 22. When the cold compress unit 2 is in the closed state covering the hollow area, the third magnetic elements 53 of two adjacent cold compress units 2 attract each other.

[0029] The third magnetic component 53 uses a permanent magnet of the same type as the first and second magnetic components 51 and 52. It is fixed to the free end of the flexible bag 21 by adhesive bonding. The magnetic poles of the third magnetic components 53 in adjacent units are opposite to achieve adsorption. In the design, the third magnetic components 53 can be symmetrically arranged on both sides of the free end of each flexible bag 21 to form two-point adsorption and improve positioning stability. Through the mutual adsorption of the third magnetic components 53, adjacent cold compress units 2 in the closed state can be accurately positioned and tightly fitted, avoiding the problem of coverage gaps or positional displacement after resetting in the prior art, and ensuring the uniformity of cold compress. As a specific implementation, the third magnetic component 53 can be embedded inside the edge of the free end of the flexible bag 21 to make the surface flush and avoid compressing the skin. At the same time, the size and adsorption force of the magnetic component are matched according to the unit arrangement density to ensure that the adsorption is firm and does not affect independent folding. In practical applications, devices designed for facial contours can be designed to differentiate the third magnetic components 53 on cold compress units in different areas such as around the eyes and cheeks to ensure adsorption stability when conforming to the facial curves. As an alternative embodiment, those skilled in the art can also use flexible hook and loop fasteners to replace the third magnetic component 53, and set the hook side and the rough side at the corresponding positions of adjacent units, which can also achieve closed positioning and bonding.

[0030] Alternatively, in some embodiments, such as Figure 4 As shown, the temperature control box 3 also includes a fixing component 32, and a limiting groove 221 is formed on the outer side wall of the connecting part 22. The fixing component 32 includes a spring disposed in the side wall of the mounting groove 31 and a limiting cap abutted by the spring. When the connecting part 22 is inserted into the mounting groove 31, the limiting cap is engaged in the limiting groove 221 to lock the cooling unit 2.

[0031] The mounting structure of the fixing component 32 involves a mounting hole on the side wall of the mounting groove 31. One end of the spring is fixed to the bottom of the hole, and the other end is connected to a limiting cap. The protruding end of the limiting cap has an arc-shaped chamfer for easy insertion. A limiting groove 221 is located on the corresponding position of the outer side wall of the connecting part 22, and its shape is adapted to the limiting cap. The spring elastic coefficient needs to be reasonably selected to ensure reliable locking and that the limiting cap can be dislodged from the groove by applying a pulling force during disassembly. The mechanical locking between the fixing component 32 and the limiting groove 221 can further improve the connection stability between the connecting part 22 and the temperature control box 3, avoid the connection from falling off due to external force during use, and ensure the continuity of heat conduction and the stability of the cooling effect. As a specific implementation, two sets of fixing components 32 can be symmetrically arranged on opposite sides of the mounting groove 31, with two limiting grooves 221 corresponding to the connecting part 22, so that the locking force is symmetrical and uniform; a guide strip is provided on the outside of the limiting cap and a guide groove is provided on the inside of the mounting hole to prevent the limiting cap from rotating and ensure accurate locking. For example, in devices designed for large treatment areas (such as cosmetic surgery on the back), symmetrically arranged fixing components can effectively resist the pulling force caused by changes in the patient's body position, ensuring a stable connection of the cooling unit.

[0032] This design achieves a fast, reliable, and clearly responsive mechanical connection. During insertion, the beveled surface of the connecting part 22 presses against the limiting cap, compressing the spring; when the limiting groove 221 moves to align with the limiting cap, the spring's restoring force instantly pushes the limiting cap into the groove, producing a clear "click" sound and tactile feedback, confirming to the operator that the installation is in place. This connection method not only ensures that the cooling unit 2 will not accidentally detach due to external pulling during surgery, ensuring tight contact at the heat conduction interface, but also greatly facilitates unit replacement.

[0033] Alternatively, in some embodiments, such as Figure 4 As shown, the temperature control component includes a thermoelectric cooler 41 and a heat-conducting element 42. An installation channel extending into the flexible bag 21 is provided within the connecting portion 22, and the heat-conducting element 42 is disposed within the installation channel. One end of the heat-conducting element 42 extends into the flexible bag 21 and contacts the cooling medium, while the other end of the heat-conducting element 42 is used for thermal conduction connection with the cold end of the thermoelectric cooler 41 when the connecting portion 22 is inserted into the mounting slot 31.

[0034] The thermoelectric cooler 41 can be a small commercial model, fixed inside the temperature control box 3, with the cold end facing the mounting slot 31 and the hot end facing the outer wall. The heat-conducting component 42 is made of copper rod or graphene heat-conducting strip, fixed inside the mounting channel, with one end extending into the flexible bag 21 and flattened to increase the contact area. After the connecting part 22 is inserted, the other end of the heat-conducting component 42 is tightly attached to the cold end of the thermoelectric cooler 41, and thermal grease is applied to the contact surface to improve heat conduction efficiency. The efficient heat conduction path constructed by the thermoelectric cooler 41 and the heat-conducting component 42 can quickly and accurately transfer cold energy to the cooling medium, achieving precise temperature control. It can be flexibly adjusted according to the surgical energy intensity and patient tolerance, improving the targeting of the cooling application. As a specific implementation, a metal heat-conducting plate can be provided at the cold end of the thermoelectric cooler 41, so that the heat-conducting components 42 of multiple cooling units 2 can contact simultaneously, realizing synchronous temperature control of multiple units by a single cooler. For example, in laser freckle removal surgery, a cooling temperature of 3℃-5℃ can be preset on the circuit board, and the heat-conducting component can quickly transfer the cooling energy to the medium, effectively relieving the burning sensation caused by laser treatment. As an alternative embodiment, those skilled in the art can also use a miniature refrigeration compressor to replace the semiconductor cooling chip 41, and work with the heat-conducting component to achieve a larger cooling output, suitable for high-intensity, long-term cosmetic surgery scenarios.

[0035] Alternatively, in some embodiments, such as Figure 6 As shown, the heat-conducting component 42 has heat-conducting fins 421 at one end inside the flexible bag body 21, and the heat-conducting fins 421 are immersed in the cold compress medium.

[0036] This configuration significantly expands the heat exchange surface area between the heat-conducting element 42 and the cooling medium. The fin structure, like the fins of a heat sink, rapidly and evenly diffuses the cooling energy from the core of the heat-conducting element 42 into a larger volume of surrounding medium. As a specific implementation, the heat-conducting fins 421 can be integrally machined with the heat-conducting element 42, for example, by milling radial fins to further improve heat exchange efficiency.

[0037] Alternatively, in some embodiments, such as Figures 1 to 3 As shown, the side wall of the temperature control box 3 has a heat dissipation window 33, and the hot end of the semiconductor cooling chip 41 is positioned directly opposite the heat dissipation window 33.

[0038] The heat dissipation window 33 can be a louvered or mesh opening, directly formed on the outer shell of the temperature control box 3. When the thermoelectric cooler 41 is working, the hot end generates a large amount of heat. If this heat is not dissipated in time, it will flow back, causing the cold end temperature to rise. This embodiment solves the problem of heat accumulation in the thermoelectric cooler by creating a heat dissipation window and using a reasonable airflow layout. The heat dissipation window faces the hot end, utilizing air convection (natural or forced convection) to quickly expel heat from the box. This design ensures that the thermoelectric cooler always operates within a high-efficiency temperature difference range, maintaining the continuous cooling capacity of the cold end.

[0039] Optionally, in some embodiments, the cooling unit 2 is further provided with a temperature sensor, and the temperature control box 3 is provided with a control circuit board and a power supply. The semiconductor cooling chip 41 and the temperature sensor are both electrically connected to the control circuit board.

[0040] The temperature sensor is a small thermistor, fixed within the cooling medium in the flexible bag 21. The wires are arranged along the connection 22 and a sealing sleeve ensures a tight seal. The control circuit board uses a microcontroller module, integrating temperature acquisition, drive, and power management functions. It can receive temperature signals and control the start / stop and power of the cooling element. A rechargeable lithium battery or an external power interface is used as the power supply. By collecting data in real time through the temperature sensor, the control circuit board automatically adjusts the working state of the cooling element, achieving automated and precise temperature control, avoiding manual intervention, and preventing frostbite from excessively low temperatures or ineffective treatment from excessively high temperatures. In a specific implementation, the control circuit board can have a temperature adjustment button and a display screen, with preset temperature levels such as 0℃, 5℃, and 10℃. The display screen shows the current temperature in real time. The wires are flexible and sealed with a sleeve to ensure the bag is sealed. In clinical applications, medical staff can quickly set the appropriate cooling temperature using the button according to the patient's skin type and surgical intensity. The temperature sensor provides real-time feedback data, allowing the control circuit board to adjust accordingly, ensuring treatment safety. As an alternative embodiment, those skilled in the art can also integrate a Bluetooth module into the control circuit board to enable communication with a mobile terminal, allowing remote temperature setting and data viewing via a mobile phone.

[0041] Alternatively, in some embodiments, such as Figures 1 to 4 As shown, the flexible bag body 21 is also provided with a handle 23 on the side surface away from human skin, and the handle 23 is located near the first magnetic component 51.

[0042] The handle 23 can be a small pull ring, protrusion, or tongue made of soft plastic or fabric. It is located near the magnetic adsorption point, i.e., at the position with the longer lever arm. This embodiment optimizes the doctor's intraoperative operating experience by setting up a user-friendly handle structure. Since the surface of the cooling unit may become slippery due to condensation at low temperatures, and the attraction between the first and second magnetic components requires a certain amount of external force to separate them, directly pinching the edge of the bag is neither hygienic nor convenient for applying force. The handle design provides a clear point of leverage, allowing the doctor to easily flip up (overcoming gravity) and reposition (overcoming magnetic attraction or guiding magnetic attraction) the cooling unit by simply pinching the handle. Furthermore, the handle is located near the magnetic components, which conforms to mechanical principles, making operation more effortless and smooth, and avoiding the risk of hand contact contamination of the treatment area.

[0043] The working principle of this utility model is as follows: During the surgical preparation stage, each cold compress unit 2 pre-loaded with cold compress medium is inserted into the mounting slot 31 of the temperature control box 3 on both sides through the connecting part 22 until the clicking sound of the fixing component 32 is heard. The power is turned on, and the required cold compress temperature (e.g., 5℃) is set through the control panel. The temperature control system is activated, the semiconductor cooling chip 41 begins to cool, and the cold energy is quickly transferred to the cold compress medium through the heat conduction component 42 until it reaches and stabilizes at the set temperature. The flexible base 1 is attached and fixed around the patient's treatment area, so that all cold compress units 2 cover the surgical area. During the operation, when a certain area needs to be treated, the doctor pinches the handle 23 on the corresponding cold compress unit 2 with his fingers, folds it upward, and causes the first magnetic component 51 on its outer surface to be attracted to the second magnetic component 52 on the side of the temperature control box 3, and the skin in that area is then completely exposed. After treatment, the cooling unit 2 is removed from the side of the temperature control box and placed back in the closed position. Its free end automatically attracts the adjacent unit via the third magnetic component 53, simultaneously restoring the heat conduction path and rapidly recooling the area, preparing it for subsequent treatment or postoperative care. Throughout the process, the temperature closed-loop control system operates continuously, ensuring that the medium temperature of all cooling units remains within the preset safe and effective range regardless of their state.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cold compress analgesia device for cosmetic surgery, comprising a flexible base (1) and a plurality of cold compress units (2) connected to the flexible base (1), wherein the flexible base (1) has a hollow area in the middle, and the plurality of cold compress units (2) cover the hollow area and are configured to be foldable relative to the flexible base (1) to expose a local treatment area, characterized in that, The cold compress unit (2) includes a flexible bag (21) and a connecting part (22) sealed to one end of the flexible bag (21), and the flexible bag (21) is filled with a cold compress medium. Temperature control boxes (3) are symmetrically arranged on both sides of the flexible substrate (1). The temperature control boxes (3) have a receiving cavity, and a temperature control component is installed in the receiving cavity. The temperature control box (3) has an installation groove (31) on the side facing the hollow area that communicates with the receiving cavity. The connecting part (22) is detachably inserted into the installation groove (31) and is thermally connected to the temperature control component, so that the temperature control component exchanges heat with the cold compress medium in the flexible bag (21) through the connecting part (22). The flexible bag (21) has a first magnetic element (51) on its outer surface away from human skin, and the temperature control box (3) has a second magnetic element (52). When the cold compress unit (2) is folded, it is limited by the magnetic adsorption of the first magnetic element (51) and the second magnetic element (52).

2. The cold compress analgesia device for cosmetic surgery according to claim 1, characterized in that, A third magnetic element (53) is provided at one end of the flexible bag (21) away from the connecting part (22); when the cold compress unit (2) is in a closed state covering the hollow area, the third magnetic elements (53) of two adjacent cold compress units (2) attract each other.

3. The cold compress analgesia device for cosmetic surgery according to claim 1, characterized in that, The temperature control box (3) also includes a fixing component (32), and a limiting groove (221) is provided on the outer side wall of the connecting part (22). The fixing component (32) includes a spring disposed in the side wall of the mounting groove (31) and a limiting cap abutted by the spring. When the connecting part (22) is inserted into the mounting groove (31), the limiting cap is engaged in the limiting groove (221) to lock the cold compress unit (2).

4. The cold compress analgesia device for cosmetic surgery according to claim 1, characterized in that, The temperature control component includes a semiconductor cooling chip (41) and a heat-conducting component (42). An installation channel extending into the interior of the flexible bag body (21) is provided in the connecting part (22), and the heat-conducting component (42) is disposed in the installation channel; One end of the heat-conducting element (42) extends into the flexible bag body (21) and contacts the cooling medium. The other end of the heat-conducting element (42) is used to conduct heat to the cold end of the semiconductor cooling chip (41) when the connecting part (22) is inserted into the mounting groove (31).

5. A cold compress analgesia device for cosmetic surgery according to claim 4, characterized in that, The heat-conducting component (42) has a heat-conducting fin (421) at one end inside the flexible bag body (21), and the heat-conducting fin (421) is immersed in the cold compress medium.

6. The cold compress analgesia device for cosmetic surgery according to claim 4, characterized in that, The side wall of the temperature control box (3) is provided with a heat dissipation window (33), and the hot end of the semiconductor cooling chip (41) is positioned directly opposite the heat dissipation window (33).

7. The cold compress analgesia device for cosmetic surgery according to claim 4, characterized in that, The cooling unit (2) is also equipped with a temperature sensor, and the temperature control box (3) is equipped with a control circuit board and a power supply. The semiconductor cooling chip (41) and the temperature sensor are both electrically connected to the control circuit board.

8. The cold compress analgesia device for cosmetic surgery according to claim 1, characterized in that, The flexible bag (21) is provided with a handle (23) on the side of its surface away from human skin, and the handle (23) is located near the first magnetic element (51).

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