Hot compress temperature batch testing device

Abstract

The batch temperature testing device for heat therapy patches includes a constant-temperature circulating tank and several interconnected unit testing devices. Circulating water flows within the housings of each unit testing device. Through these interconnected unit testing devices, multiple heat therapy patches can be simultaneously batch-tested for key parameters such as maximum temperature, heating time, and duration. This avoids the cumbersome process of replacing each patch individually, as required by traditional single-station testing, significantly shortening the overall testing cycle and improving the overall capacity and efficiency of the production line. Only one constant-temperature circulating tank is needed as a power source to drive the circulating water flow in multiple unit testing devices, eliminating the need for an independent heating device for each heat therapy patch. This significantly reduces equipment purchase costs and energy consumption, while also lowering the complexity of equipment maintenance and management, aligning with the sustainable development concepts of green production and energy conservation and emission reduction.

Description

Technical Field

[0001] This utility model relates to the field of temperature testing equipment technology, specifically a batch temperature testing device for heat therapy patches. Background Technology

[0002] Heating patches are Class II medical devices that release heat through an oxidation reaction using heating materials such as reduced iron powder and activated carbon. This heat is then conducted to promote local blood circulation, achieving the purpose of assisting in anti-inflammatory, swelling-reducing, and analgesic effects. To ensure the quality of heating patches, it is necessary to test parameters such as maximum temperature, heating time, and duration of several heating patches produced in the same batch. The People's Republic of China Pharmaceutical Industry Standard YY0060-2018 provides a heating device for testing, including a connected heater and a circulating constant temperature water bath. This device can only hold one heating patch for testing at a time. If batch testing of heating patches is desired, one heating patch must be tested before another is placed, resulting in low overall testing efficiency. Alternatively, multiple heating devices matching the number of heating patches can be used, but the use of more testing equipment significantly increases testing costs. Summary of the Invention

[0003] The purpose of this invention is to provide a batch testing device for the temperature of heat therapy patches. By assembling unit testing equipment as needed and using a set of constant temperature circulating tanks as the power source for constant temperature water circulation, batch testing of the temperature of heat therapy patches can be achieved, thus solving the problems in the prior art.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a batch testing device for the temperature of a hot compress patch, including a constant temperature circulation tank and several interconnected unit testing devices. Each unit testing device includes a box containing circulating water. A first connecting pipe protruding outward is provided at the lower part of one side of the box, and a first insertion hole is provided at the upper part. A second insertion hole cooperating with the first connecting pipe is provided at the lower part of the other side of the box, and a second connecting pipe cooperating with the first insertion hole is provided at the upper part. Adjacent unit testing devices are connected... The pipes and sockets are connected for installation. An insulation ring is installed on one side of the housing. Inside the insulation ring, there is a plastic plate and a gauze layer. The plastic plate is located between the gauze layer and the insulation ring. The insulation ring is covered with a flat fleece layer that can be opened and closed. The flat fleece layer can seal the heat patch inside the insulation ring. The constant temperature circulation tank is equipped with a water pump. The return port of the water pump is connected to the first socket through a first pipe. The outlet of the water pump is connected to the second socket through a second pipe. The circulating water can circulate in the housing of each unit test equipment. The enclosure comprises an inner stainless steel layer, a foam layer, and an outer stainless steel layer from the inside out. The inner stainless steel layer is relatively sealed, and a heat insulation ring is installed on one side of it. The remaining sides of the inner stainless steel layer are covered by the foam layer and the outer stainless steel layer. Both the first and second connecting pipes pass through the inner stainless steel layer and connect to the interior of the enclosure. The first and second insertion holes are formed by connecting the inner and outer stainless steel layers. Each of the first and second connecting pipes has several sealing rings, and the inner circumference of the first and second insertion holes has sealing ring grooves that mate with the sealing rings. The bottom of the flat fleece layer is fixed to the heat insulation ring, and the upper and side parts of the flat fleece layer are detachably attached to the outer surface of the heat insulation ring using Velcro. A clearance groove is provided at the top of the heat insulation ring. An extrusion block is provided on the inner surface of the flat fleece layer to press the heat patch firmly onto the gauze layer. The bottom of the enclosure has support legs, and fasteners are installed between the enclosures of adjacent unit testing devices, located at the top and bottom of the enclosures.

[0005] The positive effects of this utility model are as follows: The batch temperature testing device for heat therapy patches described in this utility model includes a constant temperature circulation tank and several interconnected unit testing devices. Circulating water can circulate within the housings of each unit testing device. Through these interconnected unit testing devices, multiple heat therapy patches can be simultaneously batch-tested for key parameters such as maximum temperature, heating time, and duration. This avoids the cumbersome process of replacing each patch individually, as required by traditional single-station testing, significantly shortening the overall testing cycle and improving the overall capacity and efficiency of the production line. Only one constant temperature circulation tank is needed as a power source to drive the circulating water flow in multiple unit testing devices, eliminating the need for an independent heating device for each heat therapy patch. This greatly reduces equipment purchase costs and energy consumption, while also reducing the complexity of equipment maintenance and management, aligning with the sustainable development concepts of green production and energy conservation and emission reduction. The unit testing devices can be quickly connected and installed via connecting pipes and sockets, facilitating flexible adjustment of the number and layout of testing units according to actual testing needs. Whether it's small-batch sampling or large-scale full inspection, it can easily handle the demands, while also reserving ample space for future capacity expansion or changes in testing requirements. Attached Figure Description

[0006] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is the front view of this utility model; Figure 3 yes Figure 2 Rear view; Figure 4 This is a schematic diagram of the unit test equipment; Figure 5 yes Figure 4 The left view; Figure 6 yes Figure 4 The right view; Figure 7 yes Figure 4 Sectional view along line AA; Figure 8 yes Figure 5 An enlarged view of the BB-axis sectional view; Figure 9 This is a cross-sectional enlarged view of the connecting tube located inside the socket. Detailed Implementation

[0007] The present invention provides a batch testing device for the temperature of heat therapy patches, such as... Figure 1-6As shown, the device includes a constant temperature circulation tank 1 and several interconnected unit test devices. The constant temperature circulation tank 1 can provide circulating water with a relatively constant temperature for the whole device to simulate the use of heat patch on a person. The unit test devices can hold a heat patch individually and can be adapted to the actual number of heat patch batch tests to ensure that batch testing of heat patch can be achieved at one time. The unit test devices can also effectively reduce thermal interference between test pieces. The constant temperature circulation tank 1 can be the existing MP-501A constant temperature circulation tank.

[0008] Each unit test device includes a housing 2, which stores circulating water. Driven by the constant temperature circulation tank 1, the circulating water can circulate within the housing 2 of each unit test device. To facilitate the assembly and connection between unit test devices, a first connecting pipe 3 protruding outward is provided on the lower part of one side of the housing 2, and a first insertion hole 4 is provided on the upper part. On the lower part of the other side of the housing 2, a second insertion hole 5 that mates with the first connecting pipe 3 is provided, and a second connecting pipe 6 that mates with the first insertion hole 4 is provided on the upper part. Adjacent unit test devices are connected and installed through the connecting pipes and insertion holes, which not only realizes the connection and installation between unit test devices, but also allows the constant temperature water inside the housing 2 to form a circulation path.

[0009] To minimize the thermal interference of the heat patch in the unit test equipment to adjacent devices, a heat insulation ring 7 is installed on one side of the housing 2. Inside the heat insulation ring 7, the housing 2 is provided with a plastic plate 8 and a gauze layer 9. The plastic plate 8 is located between the gauze layer 9 and the heat insulation ring 7. The plastic plate 8 and the gauze layer 9 can simulate the condition of human skin and outer clothing, and will not affect the heat dissipation of the heat patch.

[0010] A closable flat fleece layer 10 is provided on the heat insulation ring 7. The flat fleece layer 10 can seal the heat patch inside the heat insulation ring 7. The flat fleece layer 10 allows the heat emitted by the heat patch to remain in the space inside the heat insulation ring 7 to the maximum extent, thereby making the temperature data measured later more accurate.

[0011] To achieve the circulation of constant-temperature water inside the device, a water pump 22 is installed in the constant-temperature circulation tank 1. The return port of the water pump 22 is connected to the first insertion hole 4 through the first pipe 11, and the outlet of the water pump 22 is connected to the second insertion hole 5 through the second pipe 12. The circulating water can circulate within the housing 2 of each unit test equipment. After the unit test equipment is installed and connected through insertion holes and connecting pipes, the circulating water can enter from the insertion hole located at the bottom of the housing 2, flow through each unit test equipment, and then flow out through the insertion hole located at the top of the housing 2, and is circulated by the water pump 22. To ensure the sealing of the circulating water inside the device, sealing caps are installed on the first connecting pipe 3 and the second connecting pipe 6 at both ends of the unit test equipment after assembly to achieve the corresponding sealing function.

[0012] The constant temperature circulation tank 1 achieves precise temperature control and uniform flow of circulating water through the water pump 22, ensuring that the water temperature in each unit test equipment is highly consistent, simulating the scenario of constant human body temperature, providing a stable and controllable test environment for heat therapy patches, effectively eliminating test errors caused by ambient temperature fluctuations, improving the reliability and repeatability of test data, and providing a solid guarantee for product quality control.

[0013] When testing heat therapy patches using a batch temperature testing device, the corresponding number of unit testing devices are first connected in batches according to the number of heat therapy patches to be tested. Interconnected channels are formed inside through sockets and connecting pipes. Then, the water pump 22 of the constant temperature circulation tank 1 is started to circulate the constant temperature water in each unit testing device to simulate the constant temperature of the human body. Then, the flat fleece layer 10 is opened and the heat therapy patch is placed in the heat insulation ring 7 of each unit testing device. Then, the flat fleece layer 10 is closed to seal the heat therapy patch. The time from the start of heating to the drop from the highest temperature to below 40 degrees Celsius is recorded. During this process, the average values ​​of the highest temperature, heating time, duration, and temperature holding time are recorded as the data for the heat therapy patch test.

[0014] Currently available devices for batch testing of heat therapy patches typically test a fixed number of patches uniformly. These patches are usually covered by a common insulation board. After opening the board, the patches must be installed sequentially before the board is closed again and the testing time begins. However, the heat therapy patches are installed in a specific order, and previously installed patches may already be heating up, leading to inaccurate heating times and affecting the final test results. In contrast, the heat therapy patch temperature batch testing device described in this invention is composed of several unit testing devices assembled together. These unit testing devices can be assembled according to the actual number of heat therapy patches being tested. Each unit testing device contains a flat fleece layer 10 and an insulation ring 7, each corresponding to one heat therapy patch. Once each patch is installed, the testing time can be calculated immediately, significantly improving the accuracy of the test results. Furthermore, it has a wide range of applications, allowing for adaptive insertion and matching of unit testing devices based on the actual number of heat therapy patches being tested in a batch.

[0015] Furthermore, to ensure that the water temperature within each unit test device remains relatively constant and to reduce temperature dissipation to the outside, such as... Figure 7 and Figure 8 As shown, the housing 2 may include an inner stainless steel layer 13, a foam layer 14 and an outer stainless steel layer 15 from the inside to the outside. The inner stainless steel layer 13 is relatively closed. A heat insulation ring 7 is installed on one side of the inner stainless steel layer 13. The remaining sides of the inner stainless steel layer 13 are covered with the foam layer 14 and the outer stainless steel layer 15.

[0016] Both the first connecting pipe 3 and the second connecting pipe 6 pass through the inner stainless steel layer 13 and are connected to the inside of the housing 2. The first socket 4 and the second socket 5 are both formed by connecting the inner stainless steel layer 13 and the outer stainless steel layer 15. The foam layer 14 can be an existing expanded polystyrene material, which plays a necessary role in heat insulation and minimizes the outward diffusion of temperature. The inner stainless steel layer 13 and the outer stainless steel layer 15 can serve as a sturdy inner and outer shell, providing a relatively stable structural foundation for the positioning, assembly and connection of the connecting pipes and sockets.

[0017] To achieve a sealed connection between the connecting pipe and the socket, both the first connecting pipe 3 and the second connecting pipe 6 are provided with several sealing rings 16, and the inner circumference of the first socket 4 and the second socket 5 is provided with sealing ring grooves 17 that cooperate with the sealing rings 16. The housing 2 adopts a composite structure of an inner stainless steel layer 13, a foam layer 14 and an outer stainless steel layer 15. Combined with the sealing rings 16 and the sealing ring grooves 17, it effectively prevents leakage of circulating water and temperature dissipation of constant temperature water, ensuring the safety and stability of the testing process.

[0018] Furthermore, the bottom of the flat fleece layer 10 can be fixed to the heat insulation ring 7. The upper part and both sides of the flat fleece layer 10 are detachably mounted on the outer surface of the heat insulation ring 7 via Velcro 18. An clearance groove 19 is provided on the top of the heat insulation ring 7. An existing temperature sensor can be placed in the clearance groove 19 to effectively test the temperature of the heat patch. The detachable mounting of the flat fleece layer 10 via Velcro 18 not only facilitates quick opening and closing for placing or removing the heat patch, but also ensures that the heat emitted by the heat patch is retained to the maximum extent in the internal space of the heat insulation ring 7, thereby ensuring the accuracy and reliability of the temperature data during the test.

[0019] Furthermore, a compression block 20 may be provided on the inner surface of the planar fleece layer 10. The compression block 20 can press the heat patch tightly onto the gauze layer 9. The design of the compression block 20 can ensure that the heat patch and the gauze layer 9 are closely attached, more accurately simulating the human body's usage, improving heat conduction efficiency, and ensuring the accuracy of subsequent test data.

[0020] Furthermore, to ensure the connection strength between adjacent unit test devices and prevent the connecting pipe from detaching from the socket under external force, thus affecting the normal conduct of the test, the bottom of the housing 2 is provided with support legs 23, and buckles 21 are installed between the housings 2 of adjacent unit test devices. The buckles 21 are respectively located at the top and bottom of the housing 2. The buckles 21 can achieve a stable connection between adjacent unit test devices, thereby ensuring the installation and connection of the connecting pipe and the socket.

[0021] The heat therapy patch temperature batch testing device described in this utility model ensures the consistency of performance parameters of the same batch of heat therapy patches through batch testing, which helps manufacturers achieve standardized and regulated production management, enhances product market competitiveness, and provides regulatory authorities with a more efficient and accurate testing method.

[0022] The technical solution of this utility model is not limited to the scope of the embodiments described herein. All technical contents not described in detail herein are publicly known technologies.

Claims

1. A batch testing device for the temperature of heat therapy patches, characterized in that: The system includes a constant temperature circulating bath (1) and several interconnected unit test devices. Each unit test device includes a housing (2), which stores circulating water. A first connecting pipe (3) protrudes outward and a first insertion hole (4) is provided on the lower part of one side of the housing (2). A second insertion hole (5) that mates with the first connecting pipe (3) is provided on the lower part of the other side of the housing (2), and a second connecting pipe (6) that mates with the first insertion hole (4) is provided on the upper part. Adjacent unit test devices are connected and installed through connecting pipes and insertion holes. A heat insulation ring (7) is installed on one side of the housing (2). (7) The box (2) inside is provided with a plastic plate (8) and a gauze layer (9). The plastic plate (8) is located between the gauze layer (9) and the heat insulation ring (7). The heat insulation ring (7) is covered with a flat fleece layer (10) that can be opened and closed. The flat fleece layer (10) can seal the heat patch inside the heat insulation ring (7). The constant temperature circulation tank (1) is provided with a water pump (22). The return water port of the water pump (22) is connected to the first socket (4) through the first pipe (11). The outlet of the water pump (22) is connected to the second socket (5) through the second pipe (12). The circulating water can circulate in the box (2) of each unit test equipment.

2. The heat therapy patch temperature batch testing device according to claim 1, characterized in that: The box (2) includes an inner stainless steel layer (13), a foam layer (14) and an outer stainless steel layer (15) from the inside to the outside. The inner stainless steel layer (13) is relatively closed. A heat insulation ring (7) is installed on one side of the inner stainless steel layer (13). The remaining sides of the inner stainless steel layer (13) are covered with a foam layer (14) and an outer stainless steel layer (15). The first connecting pipe (3) and the second connecting pipe (6) pass through the inner stainless steel layer (13) and are connected to the inside of the box (2). The first socket (4) and the second socket (5) are both formed by connecting the inner stainless steel layer (13) and the outer stainless steel layer (15). The first connecting pipe (3) and the second connecting pipe (6) are provided with several sealing rings (16). The inner circumference of the first socket (4) and the second socket (5) is provided with a sealing ring groove (17) that cooperates with the sealing ring (16).

3. The heat therapy patch temperature batch testing device according to claim 1, characterized in that: The bottom of the flat fleece layer (10) is fixed on the heat insulation ring (7). The upper part and both sides of the flat fleece layer (10) are detachably mounted on the outer surface of the heat insulation ring (7) via Velcro (18). An clearance groove (19) is provided on the top of the heat insulation ring (7).

4. The heat therapy patch temperature batch testing device according to claim 1, characterized in that: The inner surface of the flat fleece layer (10) is provided with a pressing block (20), which can press the heat patch onto the gauze layer (9).

5. The heat therapy patch temperature batch testing device according to claim 1, characterized in that: The bottom of the box (2) is provided with support legs (23), and buckles (21) are installed between the boxes (2) of adjacent unit test equipment. The buckles (21) are respectively located at the top and bottom of the box (2).

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