Medical induction heating device for postoperative patient

Abstract

The invention discloses a medical induction heating device for postoperative patients, and relates to the technical field of medical treatment. The elastic rubber part is spliced to cover the surface of the heat conducting layer; the contact plate covers the top of the elastic rubber part, the top of the contact plate is arranged in an arc shape, a V-shaped network-shaped heat dissipation space is formed by the contact plate and the top of the elastic rubber part, adjacent network channels are communicated, and a heat dissipation gap capable of being opened and closed is formed between the contact plate and the elastic rubber part. The temperature is sensed in real time through the thermosensitive expansion body, coupling of heat dissipation opening control, heat source blocking, airflow enhancement and airflow organization optimization is achieved through expansion displacement, and the situation that due to electronic element faults or sensor response delay, the local temperature is too high, response cannot be conducted in time, and corresponding measures cannot be taken is effectively avoided; and potential safety hazards are effectively reduced, and the response efficiency and safety of the device are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of medical technology, specifically to a medical induction heating device for postoperative patients. Background Technology

[0002] Postoperative patients, especially those who have undergone major or invasive surgery, or those who are physically weak, often experience hypothermia due to residual anesthesia, increased energy expenditure, and temporary dysfunction of the thermoregulatory center. Hypothermia not only causes shivering and decreased comfort, but can also lead to a series of complications such as coagulation disorders, weakened immune function, and increased risk of postoperative infection, seriously affecting the postoperative recovery process. Therefore, precise and safe temperature maintenance and warming care for postoperative patients is a crucial aspect of clinical nursing.

[0003] Existing devices mostly rely on manual operation or electronic signal triggering, and temperature regulation is achieved through electronic temperature control modules. Due to the reduced skin sensitivity of postoperative patients, their ability to perceive temperature decreases. If electronic components malfunction or sensors respond late, it can easily lead to excessively high local temperatures, making it impossible to respond in time and take appropriate measures, thereby causing safety hazards such as burns. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a medical induction heating device for postoperative patients.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] A medical induction heating device for postoperative patients, comprising:

[0007] Thermal conductive layer;

[0008] The splicing is designed to cover the surface of the heat-conducting layer with elastic rubber parts;

[0009] A contact plate covering the top of the elastic rubber component has an arc-shaped top that forms a V-shaped network-like heat dissipation space with the top of the elastic rubber component, and adjacent network channels are connected. An openable and closable heat dissipation gap is formed between the contact plate and the elastic rubber component.

[0010] The heating column, which is embedded in the inner wall of the elastic rubber part and whose bottom is in contact with the heat-conducting layer, is positioned to correspond to the heat dissipation gap.

[0011] A heat dissipation self-triggering unit disposed within the internal cavity of an elastic rubber component includes:

[0012] A thermosensitive expander that expands and displaces along its axis when heated to a temperature threshold.

[0013] The heat-conducting column is placed between the thermal expansion body and the contact plate. It moves synchronously with the expansion displacement of the thermal expansion body to open the heat dissipation gap and break the contact between the heating column and the contact plate.

[0014] An exhaust pipe connected to a heat dissipation gap and an exhaust plate slidably disposed inside the exhaust pipe;

[0015] The transmission is set between the expansion end of the thermal expansion body and the exhaust plate. It is used to amplify the expansion displacement and drive the exhaust plate to exhaust. The airflow is guided by the open heat dissipation gap to flow directionally to the network channel and form a heat dissipation airflow that diffuses in all directions along the V-shaped network heat dissipation space, so as to form a gradually weakening airflow heat dissipation.

[0016] Preferably, a single heat dissipation self-triggering unit is triggered to form a heat dissipation airflow that diffuses directionally outward from the heat dissipation self-triggering unit as the center.

[0017] Preferably, adjacent heat dissipation self-triggering units are triggered simultaneously, and the heat dissipation gaps at their adjacent positions form forced convection and diffuse in a turbulent manner to enhance heat dissipation.

[0018] Preferably, a heat exchange cylinder is fixedly disposed on the outer wall of the heat-conducting column and is in contact with the exhaust pipe. A heat exchange capsule is disposed inside the heat exchange cylinder. When the temperature of the heat-conducting column reaches the melting point of the heat exchange capsule, the heat exchange capsule melts and absorbs heat so that the heat exchange cylinder cools the gas inside the exhaust pipe.

[0019] Preferably, the elastic rubber component is a regular hexagonal prism. When the contact plate is pressed, the middle of the elastic rubber component is concave downward. At this time, the splice of the top surface of the elastic rubber component forms a cone-shaped body centered on the splice vertex, so as to guide part of the heat dissipation airflow along the conical inclined surface to the human skin for heat dissipation.

[0020] Preferably, each conical inclined surface of the cone-shaped body is evenly distributed with hydrophobic fibers, and sweat forms a uniform water film along the conical inclined surface. When the heat dissipation airflow passes through, the water film evaporates and absorbs heat, thereby enhancing heat dissipation.

[0021] Preferably, when adjacent heat dissipation self-triggering units are triggered simultaneously, the turbulence formed by the forced convection at the heat dissipation gaps at their adjacent positions can accelerate water film evaporation and speed up heat dissipation.

[0022] Preferably, the thermosensitive expander is a shape memory alloy column.

[0023] Preferably, the heat exchange capsule is a paraffin capsule.

[0024] Preferably, silicone pillars are symmetrically arranged on the contact surface formed by the contact plate, and temperature sensors are provided on the silicone pillars for measuring the temperature under the patient's armpit to achieve automatic adjustment of the heating level.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] This invention utilizes a thermosensitive expansion body to sense temperature in real time and couples heat dissipation control, heat source blocking, airflow enhancement, and airflow organization optimization through expansion displacement. It requires no electronic sensors or external energy source, relying solely on the material's inherent physical properties to respond to temperature changes. The structure is simple, reliable, low-cost, and highly resistant to interference. A single expansion displacement simultaneously triggers two key actions: opening the heat dissipation gap and disconnecting the heating column, significantly improving response efficiency. Furthermore, the thermosensitive expansion body only generates axial expansion displacement when a preset temperature threshold is reached, enabling real-time dynamic response to abnormal temperature changes and precise control. This simple structure achieves passive real-time temperature sensing and synchronous heat dissipation triggering, effectively avoiding burns caused by electronic component failure or sensor response delays leading to untimely responses and measures to excessively high local temperatures. This significantly reduces safety hazards and improves the device's response efficiency and safety. Attached Figure Description

[0027] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals refer to the same parts. Wherein:

[0028] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0029] Figure 2 This is a schematic diagram of the exploded structure of the present invention;

[0030] Figure 3 This is a top view of the present invention;

[0031] Figure 4 For the present invention Figure 3 A magnified structural diagram at point A;

[0032] Figure 5 This is a side cross-sectional view of the present invention.

[0033] Figure 6 For the present invention Figure 5 A magnified structural diagram at point B;

[0034] Figure 7 For the present invention Figure 6 A magnified structural diagram at point C;

[0035] Figure 8 For the present invention Figure 6 A magnified structural diagram at point D;

[0036] Figure 9 This is a schematic diagram of the cross-sectional structure of the elastic rubber component of the present invention;

[0037] Figure 10 This is a schematic diagram of the front cross-sectional structure of the silicone column of the present invention.

[0038] The diagram is labeled as follows: 1. Main body; 2. Contact plate; 3. Silicone column; 4. Thermal conductive layer; 5. Elastic rubber part; 6. Heating column; 7. Heat insulation block; 8. Thermosensitive expansion body; 9. Piston cylinder; 10. Piston plate; 11. Piston cylinder; 12. Moving column; 13. Exhaust plate; 14. Exhaust pipe; 15. Thermal conductive column; 16. Heat exchange capsule; 17. Heat exchange cylinder; 18. Hydrophobic fiber. Detailed Implementation

[0039] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0040] like Figure 1-10 As shown, a medical induction heating device for postoperative patients includes:

[0041] Thermal conductive layer 4;

[0042] The splicing is arranged to cover the surface of the heat-conducting layer 4 with an elastic rubber part 5;

[0043] The contact plate 2 covering the top of the elastic rubber part 5 has an arc-shaped top and forms a V-shaped network heat dissipation space with the top of the elastic rubber part 5. The adjacent network channels are connected, and an openable and closable heat dissipation gap is formed between the contact plate 2 and the elastic rubber part 5.

[0044] The heating column 6, which is embedded in the inner wall of the elastic rubber part 5 and whose bottom is in contact with the heat-conducting layer 4, is positioned corresponding to the heat dissipation gap.

[0045] A heat dissipation self-triggering unit disposed within the internal cavity of the elastic rubber component 5 includes:

[0046] The thermal expansion body 8, when heated to a temperature threshold, produces an axially extending expansion displacement.

[0047] The heat-conducting column 15, which is disposed between the thermal expansion body 8 and the contact plate 2, moves synchronously with the expansion displacement of the thermal expansion body 8 to open the heat dissipation gap and disconnect the heating column 6 from the contact plate 2.

[0048] An exhaust pipe 14 connected to a heat dissipation gap and an exhaust plate 13 slidably disposed within the exhaust pipe 14;

[0049] The displacement amplification component, which is installed between the expansion end of the thermal expansion body 8 and the exhaust plate 13, amplifies the expansion displacement and drives the exhaust plate 13 to exhaust air. The airflow is guided by the open heat dissipation gap to flow directionally to the network channel and form a heat dissipation airflow that diffuses in all directions along the V-shaped network heat dissipation space, so as to form a gradually weakening airflow heat dissipation.

[0050] Specifically, after major surgery, patients often require external heating devices to maintain their body temperature due to insufficient self-heating. Existing devices rely heavily on manual operation or electronic signal triggering, using electronic temperature control modules for temperature regulation. However, postoperative patients have reduced skin sensitivity and a decreased ability to perceive temperature. If electronic components malfunction or sensors experience delayed responses, excessively high local temperatures can occur, preventing timely responses and potentially leading to burns and other safety hazards. Therefore, by incorporating a self-triggered heat dissipation unit, the device is designed so that the patient lies on it, the plug is inserted into a socket, and the temperature setting is adjusted via a switch. This activates the heater located at the bottom of the main body 1, heating the heat spreader layer at the top of the heater. The heat is then transferred through the heat-conducting layer 4 to the contact plate 2 via the heating column 6, thus warming the patient through contact with the contact plate 2.

[0051] Furthermore, when the patient's local temperature is too high or there is a sudden temperature abnormality, and the local temperature exceeds the preset temperature threshold for a long time, the body temperature is transferred in reverse to the heat-conducting column 15 through the contact plate 2 corresponding to the location of the temperature abnormality. The heat-conducting column 15 further transfers the temperature to the thermosensitive expansion body 8 located at the bottom of the cavity inside the elastic rubber part 5. By setting a heat insulation block 7 between the thermosensitive expansion body 8 and the heat-conducting layer 4, the influence of the temperature of the heat-conducting layer 4 on the thermosensitive expansion body 8 is avoided, so that the thermosensitive expansion body 8 always responds to changes in body temperature and ensures the accuracy of the response.

[0052] Furthermore, the heat-conducting column 15 transfers human body temperature to the thermosensitive expansion body 8. When the thermosensitive expansion body 8 reaches the temperature threshold, its expansion end expands directionally along the central axis of the heat-conducting column 15 and generates displacement, providing the power basis for subsequent heat dissipation. The directional displacement of the expansion end of the thermosensitive expansion body 8 drives the heat-conducting column 15 to move synchronously, pushing the contact plate 2 to move synchronously. Due to the elastic properties of the elastic rubber component 5, during the movement of the contact plate 2, the elastic rubber component 5 undergoes elastic deformation to cooperate with the movement of the contact plate 2, thereby changing the contact plate 2 and the top of the elastic rubber component 5 at the heat dissipation gap from a contact state to a separation state, thus changing the heat dissipation gap from a closed state to an open state. The heating column 6 is positioned corresponding to the heat dissipation gap. When the heat dissipation gap is opened, the heating column 6 also simultaneously disengages from the contact plate 2, thereby blocking the direct heating of the contact plate 2 by the heating column 6 and reducing heat transfer. It can respond to temperature changes in a timely manner when the temperature is too high by utilizing the physical properties of the thermosensitive material. It does not require electronic sensors or external energy, but relies on the physical properties of the material itself to respond to temperature changes. The structure is simple and reliable, low in cost, and has strong anti-interference ability. Moreover, a single expansion displacement triggers two key actions at the same time: opening the heat dissipation gap and disconnecting the heating column 6, which significantly improves the response efficiency. Furthermore, the thermosensitive expansion body 8 only generates axial expansion displacement when the preset temperature threshold is reached, realizing real-time dynamic response to abnormal temperature changes and precise control.

[0053] Furthermore, since continuously open heat dissipation vents are prone to dust accumulation or unnecessary heat loss, and fixed closed structures cannot cope with sudden high temperatures, a closable heat dissipation gap is formed between the contact plate 2 and the elastic rubber part 5. Under normal conditions, the heat dissipation gap is in a closed state, which is conducive to heat preservation and dust prevention. When the temperature is high, the heat dissipation gap opens automatically, which is directly controlled by the heat triggering mechanism and synchronized with the disconnection of the heating column 6. The energy-saving effect is significant, and the state of the heat dissipation gap changes dynamically with the temperature, effectively balancing the needs of heat preservation and heat dissipation.

[0054] Furthermore, the directional expansion displacement of the thermally sensitive expansion body 8 in response to temperature changes is amplified by the displacement amplification component, driving the exhaust plate 13 to move within the exhaust pipe 14 and generate an exhaust action. The exhaust airflow enters the V-shaped network heat dissipation space formed by the arc surface of the contact plate 2 and the elastic rubber part 5 through the open heat dissipation gap. The airflow flows directionally in the V-shaped network channel. The V-shaped network space is not only a heat dissipation area but also a flow guide channel, forcing the airflow to flow along a predetermined path. Dead zones are avoided by connecting adjacent channels, promoting airflow circulation and heat exchange. Due to the extension of the branching and diffusion paths of the network channels, the airflow diffuses from the heat dissipation gap along the V-shaped network to the surrounding areas. The flow velocity and impact force naturally decrease, and the airflow energy gradually weakens, forming a gradually weakening airflow heat dissipation. By forming a gradually weakening heat dissipation airflow centered on the temperature change, it avoids excessive temperature drop in the area around the abnormal temperature area because the temperature is not as high as the abnormal area. This achieves a more uniform, gentle, and efficient heat dissipation coverage, while also achieving uniform heat diffusion.

[0055] The displacement amplification assembly includes a piston cylinder 9 disposed at the bottom of the cavity inside the elastic rubber component 5, a piston plate 10 slidably disposed within the piston cylinder 9, a piston cylinder 11 fixedly disposed at the top of the piston cylinder 9, and a movable column 12 slidably disposed within the piston cylinder 11. The thermosensitive expansion body 8 responds to temperature changes by generating directional expansion displacement. This displacement is driven by a fixed plate at the expansion end and a first piston rod fixedly disposed between the fixed plate and the piston plate 10, causing the piston plate 10 to move synchronously. This compresses the gas inside the piston cylinder 9 and pushes it into the piston cylinder 11 through an air passage connecting the piston cylinder 9 and the piston cylinder 11. The increased gas pressure inside the piston cylinder 11 further pushes the movable column 12 fixedly disposed at the bottom of the exhaust plate 13, causing it to move and push against the exhaust. The gas plate 13 compresses the gas in the exhaust pipe 14 and discharges it through the heat dissipation gap. Since the diameter of the piston cylinder 9 is larger than the diameter of the piston cylinder 11, according to the volume calculation formula, for the same volume, the larger the bottom area, the lower the height, and the smaller the bottom area, the higher the height. Therefore, when the gas volume is the same, the displacement distance of the moving column 12 is greater than the displacement distance of the piston plate 10, thereby amplifying the expansion displacement. The displacement amplification component amplifies the small expansion displacement of the thermal expansion body 8, driving the exhaust plate 13 to perform a forced, large-stroke exhaust action, significantly enhancing the suction or exhaust capacity at the heat dissipation gap, overcoming the weakness of the passive heat dissipation airflow. The forced exhaust, together with the opened heat dissipation gap and the directional network channel, forms a powerful and controlled heat dissipation airflow.

[0056] In the aforementioned technology, the real-time temperature sensing via the thermosensitive expansion body 8, coupled with the coupling of heat dissipation control, heat source blocking, airflow enhancement, and airflow organization optimization through expansion displacement, eliminates the need for electronic sensors or external energy sources. It relies on the material's own physical properties to respond to temperature changes, resulting in a simple, reliable, low-cost, and highly interference-resistant structure. Furthermore, a single expansion displacement simultaneously triggers two key actions: opening the heat dissipation gap and disconnecting the heating column 6, significantly improving response efficiency. The thermosensitive expansion body 8 only generates axial expansion displacement when a preset temperature threshold is reached, enabling real-time dynamic response to abnormal temperature changes and precise control. This simple structure achieves passive real-time temperature sensing and synchronous heat dissipation triggering, effectively avoiding the inability to respond promptly to and take appropriate measures when local temperatures are too high due to electronic component failure or sensor response delay, thus preventing burns and other safety hazards. This significantly reduces safety risks and improves the device's response efficiency and safety.

[0057] A single heat dissipation self-triggering unit is triggered, forming a heat dissipation airflow that diffuses directionally outward from the heat dissipation self-triggering unit as the center.

[0058] Specifically, when the temperature in a certain area reaches the threshold first, the thermally sensitive expansion body 8 at the corresponding location expands, driving the exhaust plate 13 to move unidirectionally through the displacement amplification component. At the same time, the heat-conducting column 15 pushes the contact plate 2 to move and opens the heat dissipation gap corresponding to that unit, causing the heating column 6 to break contact with the contact plate 2. The linear movement of the exhaust plate 13 generates directional thrust, causing the airflow to be rapidly injected from the exhaust pipe 14 through the heat dissipation gap into the V-shaped network heat dissipation space. Each branch of the V-shaped network is radially distributed, and the arc-shaped top of the contact plate 2 forms a guide slope, guiding the airflow to diffuse outwards along both sides of the V-shape. Adjacent network channels are connected. The airflow is continuous during diffusion, avoiding local stagnation. It forms a radial flow of airflow from the triggering unit to the surrounding areas along the V-shaped channel, creating a gradually weakening airflow distribution with a strong center and weak edges. Driven by a single power source, the airflow maintains a relatively orderly laminar flow state in the initial stage, reducing energy loss. It is suitable for precise heat dissipation in local high-temperature scenarios, triggering heat dissipation only for the unit corresponding to the high-temperature area, avoiding energy waste caused by global heat dissipation. The directional gradually weakening airflow can guide heat from the core area to the periphery layer by layer, preventing hot spot accumulation, and is especially suitable for scenarios with uneven heat source distribution.

[0059] Adjacent heat dissipation self-triggering units are triggered simultaneously, and the heat dissipation gaps at their adjacent positions form forced convection and spread outward in a turbulent manner to enhance heat dissipation.

[0060] Specifically, when the temperature of adjacent areas rises synchronously, multiple thermally sensitive expansion bodies 8 expand simultaneously, driving their respective exhaust plates 13 to move. At this time, the heat dissipation gaps of adjacent units open synchronously, and the synchronous movement of adjacent exhaust plates 13 creates a pressure difference between adjacent heat dissipation gaps, forcing airflow to shuttle at high speed between the gaps. At the intersection of adjacent airflows, momentum exchange occurs due to differences in direction and velocity, forming vortices. The intersecting channels of the V-shaped network intensify airflow disturbance, causing the turbulent diffusion range to extend from the surface of the contact plate 2 into three dimensions of space. This differs from the two-dimensional diffusion of a single unit, exhibiting both radial airflow driven independently by each unit and turbulent diffusion between adjacent gaps. The lateral convection between the gaps forms a three-dimensional airflow network of "radiation + lateral intersection". The high flow velocity and vortex effect make the airflow mix more thoroughly, and the heat exchange efficiency is 3-5 times higher than that of laminar flow. The multi-unit collaborative drive forms a "heat dissipation matrix", which can quickly reduce the temperature of large-area heat sources. It is suitable for sudden high temperature or continuous high load scenarios. The forced convection of adjacent units can cancel the heat conduction effect between heat sources, prevent heat from accumulating in adjacent areas, and avoid local thermal runaway. The vortex generated by turbulence can actively draw in the surrounding cooler air, further enhancing the mass flow rate of the heat dissipation airflow and forming a "trigger-enhancement" positive feedback mechanism.

[0061] A heat exchange cylinder 17 is fixedly installed on the outer wall of the heat-conducting column 15 and is in contact with the exhaust pipe 14. A heat exchange capsule 16 is installed inside the heat exchange cylinder 17. When the temperature of the heat-conducting column 15 reaches the melting point of the heat exchange capsule 16, the heat exchange capsule 16 melts and absorbs heat so that the heat exchange cylinder 17 cools the gas inside the exhaust pipe 14.

[0062] Specifically, the heat exchange capsule 16 is encapsulated inside the heat exchange cylinder 17 and is made of phase change material (such as low-melting-point paraffin, polymer phase change material, etc.). It has a fixed melting point (which needs to be set according to the heat dissipation requirements, such as 60-80℃). Its core characteristic is that when the ambient temperature reaches the melting point, it will change from solid to liquid, absorbing a large amount of latent heat of phase change. When the local temperature of the device rises and triggers the heat dissipation self-trigger unit, the following process occurs simultaneously:

[0063] The heat-conducting column 15 heats up due to contact with the high-temperature area. Heat is transferred to the heat exchange cylinder 17 on the outer wall of the heat-conducting column 15 via thermal conduction. When the temperature of the heat exchange cylinder 17 reaches the melting point of the heat exchange capsule 16, the phase change material inside the capsule melts from a solid to a liquid state, rapidly absorbing a large amount of heat, thus maintaining the temperature of the heat exchange cylinder 17 at a low temperature close to its melting point. Since the heat exchange cylinder 17 is in contact with the exhaust pipe 14, the low-temperature heat exchange cylinder 17 absorbs heat from the gas inside the exhaust pipe 14 through thermal conduction, lowering the gas temperature. The cooled gas is driven by the exhaust plate 13 and enters the V-shaped network heat dissipation space through the heat dissipation gaps. At this time, the temperature difference between the low-temperature gas and the high-temperature contact plate 2 increases, significantly improving heat exchange efficiency and removing more heat. The efficient heat absorption and cooling of the exhaust gas by the phase change material allows the incoming gas to pass through the heat dissipation gaps. The airflow temperature decreases as it enters the heat dissipation space, widening the temperature difference with the heat dissipation components and increasing the heat-carrying capacity of the airflow per unit volume, directly enhancing the heat dissipation effect. The phase change process of the heat exchange capsule 16 has a "temperature plateau" characteristic (the temperature remains basically unchanged during melting), which can absorb a large amount of heat in a short time, slowing down the overall temperature rise rate and giving time for the heat dissipation self-triggered unit to respond. It is especially suitable for sudden high temperature scenarios. The higher the temperature, the more heat the heat conduction column 15 transfers to the heat exchange cylinder 17, the more fully the heat exchange capsule 16 melts, and the stronger the heat absorption and cooling effect. This forms an adaptive adjustment mechanism of "temperature rise → phase change enhancement → cooling enhancement", which can match the heat dissipation requirements without external control and without additional pipelines or power components. Passive cooling can be achieved solely through the phase change characteristics of the material, further simplifying the structure.

[0064] The elastic rubber component 5 is a regular hexagonal prism. When the contact plate 2 is pressed, the middle part of the elastic rubber component 5 is concave downward. At this time, the splice of the top surface of the elastic rubber component 5 forms a cone-shaped body centered on the splice vertex, so as to guide part of the heat dissipation airflow along the conical inclined surface to the human skin for heat dissipation.

[0065] Specifically, when regular hexagonal prisms are spliced ​​side-to-side, they form a regular array similar to a honeycomb. Each splicing vertex is shared by three hexagons (the vertex is the intersection of the three prisms). When the structure is under pressure, it undergoes isotropic deformation, avoiding stress concentration, distributing loads evenly, and can seamlessly cover any plane.

[0066] Furthermore, when not under pressure, the top surface of the elastic rubber part 5 is flat and adheres to the bottom surface of the contact plate 2, forming a continuous plane at the joint; when under pressure, the middle part of the column is concave downward due to elasticity, and the edge of the top surface is raised, causing the joint vertices of adjacent hexagons to bulge, forming a cone-shaped body with the joint vertices as the center and the top surface of each hexagon as the cone surface.

[0067] Furthermore, when the contact plate 2 is pressed, the center of the elastic rubber part 5 is concave, and the top edges of the adjacent hexagons tilt toward the splicing vertex, making the top surface of each hexagon a slope of the cone. The gap between the contact plate 2 and the elastic rubber part 5 widens at the edge of the cone, forming an airflow inlet distributed along the cone surface. The slope of the cone forms an angle with the vertical direction. When the heat dissipation airflow diffuses from the V-shaped network space to the surroundings, some of the airflow impacts the cone surface and is forced to flow along the slope due to the change in momentum in the direction of the slope normal, forming a secondary adjustment of the airflow direction. The airflow is quickly discharged from the heat dissipation gap. When it flows through the cone surface, it forms convection with the still air on the skin surface, enhancing heat exchange.

[0068] Each conical inclined surface of the cone-shaped body is evenly covered with hydrophobic fibers 18. Sweat forms a uniform water film along the conical inclined surface. When the heat dissipation airflow passes through, the water film evaporates and absorbs heat, thus enhancing heat dissipation.

[0069] Specifically, the hydrophobic fibers 18 are arranged radially from the apex to the edge along the conical slope. Utilizing the slope of the slope and the capillary force between the hydrophobic fibers 18, sweat is guided to diffuse from the apex to the edge, forming an ultra-thin water film of uniform thickness. The hydrophobic fibers 18 are not wetted by sweat, but the liquid is transported in a directional manner through the capillary force between the gaps, preventing sweat from lingering on the surface of the hydrophobic fibers 18 and forming adhesion. The water film maintains a dynamic balance on the slope, neither agglomerating into droplets and sliding down, nor flowing back in reverse, ensuring continuous evaporation. The heat dissipation airflow forms a turbulent boundary layer through the slope, disrupting the static air layer on the surface of the water film, increasing the evaporation rate by 2-3 times. The water film is thin, and the latent heat of evaporation is low. The heat carried by the airflow is directly transferred to the water film, allowing the evaporation process to absorb both the airflow temperature and latent heat. After the water film evaporates, the concentration increases, and solutes such as salts are deposited in the fiber gaps. When sweat is introduced next time, the old solutes can be dissolved and a new water film can be formed, avoiding blockage.

[0070] When adjacent heat dissipation self-triggering units are triggered simultaneously, the turbulence formed by the forced convection at the heat dissipation gaps at their adjacent positions can accelerate water film evaporation and speed up heat dissipation.

[0071] Specifically, under laminar flow conditions, a stable vapor boundary layer exists on the surface of the water film. Water vapor needs to diffuse through this layer through molecular diffusion, which limits its speed. During turbulence, vortices in the airflow continuously impact the surface of the water film, tearing the boundary layer and reducing its thickness. At the same time, water vapor is rapidly carried away from the interface through vortex mixing. The exhaust plates 13 of adjacent heat dissipation self-triggered units move synchronously, forming a transverse pressure difference driven flow between adjacent heat dissipation gaps. After coupling with turbulent vortices, a cross-flow effect is generated, causing the airflow on the surface of the water film to exhibit three-dimensional disturbance (coexistence of flow direction, transverse, and vertical velocity components), further disrupting the stability of the boundary layer.

[0072] The thermal expansion body 8 is a shape memory alloy pillar.

[0073] Specifically, shape memory alloy pillars can undergo plastic deformation under external force at low temperatures. When the temperature rises to the austenitic phase transformation temperature, they will quickly return to the preset initial shape and produce significant axial expansion displacement. By adjusting the alloy composition, the phase transformation temperature can be precisely set to match the heat dissipation trigger threshold for different scenarios. In the austenitic phase state at room temperature, shape memory alloy pillars can withstand large elastic deformation without permanent damage. After unloading, they automatically return to their original shape, ensuring the cyclic reliability of opening and closing the heat dissipation gaps.

[0074] The heat exchange capsule 16 is a paraffin capsule.

[0075] Silicone pillars 3 are symmetrically arranged on the contact surface formed by the contact plate 2. Temperature sensors are installed on the silicone pillars 3 to measure the temperature under the patient's armpit in order to automatically adjust the heating level.

[0076] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A medical inductive heating device for postoperative patients, characterized in that The utility model relates to a heat dissipation device with self-triggering function, comprising: a heat conduction layer; an elastic rubber piece arranged to cover the surface of the heat conduction layer; a contact plate arranged on the top of the elastic rubber piece, the top of the contact plate is arranged in an arc shape and forms a V-shaped network heat dissipation space with the top of the elastic rubber piece, and adjacent network channels are in communication; a heating column embedded in the inner wall of the elastic rubber piece and in contact with the heat conduction layer at the bottom, the position of the heating column corresponds to the heat dissipation gap; a heat dissipation self-triggering unit arranged in the cavity of the elastic rubber piece, comprising: a heat-sensitive expansion body which generates an axial expansion displacement when the temperature reaches a threshold value; a heat conduction column arranged between the heat-sensitive expansion body and the contact plate, which moves synchronously with the expansion displacement of the heat-sensitive expansion body to open the heat dissipation gap and break the contact between the heating column and the contact plate; an exhaust cylinder in communication with the heat dissipation gap and an exhaust plate slidingly arranged in the exhaust cylinder; a displacement amplification assembly arranged between the expansion end of the heat-sensitive expansion body and the exhaust plate, which is used to amplify the expansion displacement and drive the exhaust plate to exhaust, and the airflow is guided by the opened heat dissipation gap to flow into the network channel and form a heat dissipation airflow diffusing in all directions along the V-shaped network heat dissipation space to form a gradually weakening airflow heat dissipation.

2. A medical inductive heating device for post-operative patients as defined in claim 1, wherein: A single heat dissipation self-triggering unit triggers to form a heat dissipation airflow diffusing in all directions around the heat dissipation self-triggering unit.

3. The medical inductive heating device for post-operative patients of claim 1, wherein: Adjacent heat dissipation self-triggering units are triggered at the same time, the heat dissipation gap at the adjacent position forms a forced convection and diffuses in all directions in the form of turbulent flow to enhance heat dissipation.

4. The medical inductive heating device for post-operative patients of claim 1, wherein: A heat exchange cylinder is fixedly arranged on the outer wall of the heat conduction column and in contact with the exhaust cylinder, and a heat exchange capsule is arranged in the heat exchange cylinder, when the temperature of the heat conduction column reaches the melting point of the heat exchange capsule, the heat exchange capsule melts to absorb heat to cool the gas in the exhaust cylinder.

5. The medical inductive heating device for post-operative patients of claim 1, wherein: The elastic rubber piece is a regular hexagonal column, when the contact plate is pressed, the middle part of the elastic rubber piece is concave downward, at this time, the joint of the top surface of the elastic rubber piece forms a conical body with the joint vertex as the center to guide part of the heat dissipation airflow along the conical slope to the human skin for heat dissipation.

6. A medical inductive heating device for post-operative patients as defined in claim 5, wherein: Hydrophobic fibers are uniformly distributed on each conical slope of the conical body, and the sweat forms a uniform water film along the conical slope, when the heat dissipation airflow flows through, the water film evaporates to absorb heat, and the heat dissipation is enhanced.

7. A medical inductive heating device for post-operative patients as defined in claim 6, wherein: The turbulent flow formed by the forced convection of the heat dissipation gap at the adjacent position of the adjacent heat dissipation self-triggering units can accelerate the evaporation of the water film and speed up the heat dissipation.

8. The medical inductive heating device for post-operative patients of claim 1, wherein: The heat-sensitive expansion body is a shape memory alloy column.

9. A medical inductive heating device for post-operative patients as defined in claim 4, wherein: The heat exchange capsule is a paraffin capsule.

10. The medical inductive heating device for post-operative patients of claim 1, wherein: Silica gel columns are symmetrically arranged on the contact surface of the contact plate, and a temperature sensor is arranged on the silica gel column to measure the temperature under the armpit of the patient to realize automatic adjustment of the heating gear.

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