Cold and hot plate pain detector based on small animals

Abstract

The utility model discloses a cold and hot plate pain detector based on small animals, which belongs to the technical field of medical engineering and comprises a base, a touch display screen is arranged on the front side of the base, and a heat conducting plate is arranged at the upper end of the base; the heat-conducting plate is covered by a barrel, and an openable top cover is arranged at the top end of the barrel; temperature sensors are distributed at the bottom of the heat-conducting plate; a control circuit, a power supply module and a semiconductor chilling plate are arranged in the base; the semiconductor chilling plate is connected with the bottom of the heat-conducting plate; a heat dissipation module is arranged at the lower end of the semiconductor chilling plate; an exhaust fan is arranged on the side edge of the heat dissipation module; the side edge of the base is provided with a heat dissipation window corresponding to the exhaust fan in position. The small animal cold and hot pain detection device is used for realizing cold and hot pain detection experiments of small animals, the experiments are convenient, the labor intensity of workers is reduced, the experiment cost is reduced, and the experiment efficiency and the experiment accuracy are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical engineering, in particular to a cold and hot plate pain measuring instrument based on small animals. Background Art

[0002] The hot plate test is an experimental method for pain assessment, mainly used to study the effect and effectiveness of analgesics on pain response. The cold plate test is similar to the hot plate test in principle and is suitable for the study of the neurobiological mechanism of cold pain and cold hyperalgesia and the efficacy of drugs. Testing analgesics requires both physiological and pathological pain effects, which means that two different sets of experimental equipment are needed, which increases the cost of the experiment and reduces the efficiency of the experiment. However, the detection temperature accuracy is not high, the temperature change pattern is single, and the temperature detection range is small. These are problems existing in existing testing equipment. Utility Model Content

[0003] In view of the above problems, the utility model provides a cold and hot plate pain meter based on small animals, which is used to realize cold and hot pain detection experiments on small animals. The experiment is convenient, reduces manual labor intensity, reduces experimental costs, and improves experimental efficiency and experimental accuracy.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A hot and cold plate pain meter based on small animals, including a base, a touch display screen is arranged on the front of the base, and a heat conduction plate is arranged on the upper end; the heat conduction plate is covered by a cylinder, and an openable top cover is arranged on the top of the cylinder; a temperature sensor is distributed on the bottom of the heat conduction plate; a control circuit, a power supply module, and a semiconductor refrigeration plate are arranged inside the base; the semiconductor refrigeration plate is connected to the bottom of the heat conduction plate; a heat dissipation module is arranged at the lower end of the semiconductor refrigeration plate; an exhaust fan is arranged on the side of the heat dissipation module; and a heat dissipation window corresponding to the position of the exhaust fan is arranged on the side of the base.

[0006] As a further improvement of the above solution, the cylinder is made of transparent material.

[0007] As a further improvement of the above solution, ventilation holes are distributed on the top cover.

[0008] As a further improvement of the above solution, a thermally conductive silicone pad is provided between the temperature sensor and the heat conducting plate.

[0009] As a further improvement of the above solution, the temperature sensor is externally covered with a closed shell.

[0010] As a further improvement of the above solution, a wireless transmission antenna is provided on one side of the base; and the wireless transmission antenna is connected to the control circuit.

[0011] As a further improvement of the above solution, a foot switch connection port is provided on one side of the base for connecting a foot switch.

[0012] As a further improvement of the above solution, a USB interface is also provided on the front side of the base; the USB interface is connected to the control circuit.

[0013] As a further improvement of the above solution, a camera is arranged inside the cylinder.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. This equipment can ensure the integrity of the experiment while achieving high-precision temperature control. Use multiple temperature sensors, evenly distributed and close to the heat conduction plate for joint temperature measurement.

[0016] 2. The dual-channel high-air volume exhaust fan is used in conjunction with the small cooling fan in the heat dissipation module to quickly cool down, realizing two modes of rapid temperature change and uniform temperature change to adapt to different experimental needs.

[0017] 3. The foot switch can be used to record data, which solves the problem that the experimenter cannot record temperature data in time when his hands are inconvenient, and greatly improves the accuracy and efficiency of the data.

[0018] 4. Remote wireless operation can be achieved through the wireless transmission antenna, such as using a desktop wireless connection to receive data without complex lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the 3D structure diagram of the hot and cold plate analgesia instrument.

[0020] Figure 2 This is the front structural diagram of the hot and cold plate analgesia instrument.

[0021] Figure 3 Schematic diagram of the heat conducting plate structure.

[0022] Figure 4 It is a schematic diagram of the connection structure between the heat conduction plate and the semiconductor refrigeration plate, as well as the heat dissipation module and the exhaust fan structure.

[0023] Figure 5 This is a schematic diagram of the exhaust fan and power module structure.

[0024] In the figure: 1. Base; 2. Heat dissipation window; 3. Touch screen; 4. USB interface; 5. Cylinder; 6. Top cover; 7. Air vent; 8. Heat conduction plate; 9. Semiconductor cooling sheet; 10. Heat dissipation module; 11. Exhaust fan; 12. Power module; 13. Antenna; 14. Foot switch interface. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution, the utility model is described in detail below in conjunction with embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0026] like Figure 1-5 As shown, the specific scheme of this embodiment is: a hot and cold plate pain meter based on small animals, including a base 1, a touch display screen 3 is arranged on the front of the base 1, and a heat conducting plate 8 is arranged on the upper end; the heat conducting plate 8 is covered by a cylinder 5, and an openable top cover 6 is arranged on the top of the cylinder 5; a temperature sensor is distributed at the bottom of the heat conducting plate 8; a control circuit, a power supply module 12, and a semiconductor refrigeration plate 9 are arranged inside the base 1; the semiconductor refrigeration plate 9 is connected to the bottom of the heat conducting plate 8; a heat dissipation module 10 is arranged at the lower end of the semiconductor refrigeration plate 9; an exhaust fan 11 is arranged on the side of the heat dissipation module 10; a heat dissipation window 2 corresponding to the position of the exhaust fan 11 is arranged on the side of the base 1.

[0027] Specifically, the base 1 is a box body, in which a control circuit, a power module 12, a heat dissipation module 10, and an exhaust fan 11 are installed. The front of the base 1 is an inclined surface, on which a touch screen 3 and a USB interface 4 are installed; an antenna 13, a foot switch interface 14, a power switch, and a heat dissipation window 2 are installed on both sides of the base 1. The heat dissipation module 10 includes a heat sink and a heat dissipation fan; an exhaust fan 11 is additionally installed near the heat dissipation window 2 to discharge the heat in the base 1 through the heat dissipation window 2.

[0028] The heat conducting plate 8 is disc-shaped and is covered by the cylinder 5. The cylinder 5 is made of transparent material for easy observation. A detachable top cover 6 is installed on the top of the cylinder 5. The top cover 6 can also be made of transparent material. The cylinder 5 and the top cover 6 are generally made of acrylic material. The air holes 7 distributed on the top cover 6 are convenient for small animals to breathe.

[0029] There are multiple high-precision temperature sensors distributed at the bottom of the heat conducting plate 8. In order to improve the detection progress, a thermal conductive silicone pad is added between the temperature sensor and the heat conducting plate 8; at the same time, each temperature sensor is individually covered with a closed outer shell to prevent the air flow caused by the operation of the cooling fan from affecting the detection stability of the temperature sensor.

[0030] The antenna 13 is connected to the control circuit, and the antenna 13 is connected to the Bluetooth module of the control circuit.

[0031] The foot switch connector is used to insert the foot switch cable, so that the staff can record the operation data through the foot switch, freeing their hands to operate the experiment.

[0032] The USB interface 4 can facilitate exporting data or importing settings.

[0033] As a preferred embodiment of the above embodiment, a camera is provided inside the cylinder 5, and the entire experimental process can be recorded by the camera.

[0034] The specific working principle of this utility model:

[0035] The utility model aims to provide a hot and cold plate analgesia instrument based on small animals which combines two experiments into one, ensuring that both physiological and pathological experiments can be completed on the same device, while ensuring precise control of experimental temperature, selection of temperature change mode (rapid temperature change and uniform temperature change) and accuracy of data.

[0036] Technical solution: The hot and cold plate analgesic instrument includes a shell, a touch screen 3 and a USB interface 4 (for exporting data and importing settings) in front of the shell. The top of the shell is provided with a heat conducting plate 8, and a semiconductor refrigeration plate 9 and a heat dissipation module 10 are installed at the bottom of the heat conducting plate 8. Each module contains a heat sink and an exhaust fan 11. In order to ensure rapid cooling, fast heat dissipation channels are provided on both sides of the shell, and two sets of high-volume heat dissipation fans are equipped. A high-precision temperature sensor is embedded in the heat conducting plate 8, and a pressing method is used to make it fit with the heat conducting plate 8. In order to ensure good heat conduction and accurate temperature detection, a heat-conducting silicone pad is provided between the heat conducting plate 8 and the temperature sensor, and the temperature sensor has a closed shell to prevent the heat dissipation fan from affecting the accuracy of the temperature reading. A foot switch is installed on the side, which can quickly record the experimental temperature data, and is also equipped with a wireless communication function. A transparent cylindrical observation box is installed on the top of the shell, and the heat conducting plate 8 is located inside the observation box. The housing is provided with a power supply and a control circuit board, and the power supply, the control circuit board, the temperature sensor, the semiconductor cooling sheet 9, the heat dissipation module 10, the high-air volume heat dissipation fan, the foot switch and the touch display screen 3 are all connected by wires.

[0037] When in use, place the small animal in the cylinder, cover the top cover, start the power supply, and detect the feedback of the small animal by adjusting the temperature of the heat conduction plate to obtain the pain data of the small animal. The camera can record the reaction process of the small animal.

[0038] It should be noted that, in this article, the terms include, contain or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Specific examples are used in this article to illustrate the principle and implementation of the technical solution of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. The above are only preferred implementations of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, for ordinary technicians in this technical field, without departing from the principle of the utility model, several improvements, modifications or changes can be made, and the above technical features can also be combined in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A hot and cold plate analgesia instrument based on small animals, characterized in that: The invention comprises a base (1), wherein a touch display screen (3) is arranged on the front of the base (1), and a heat conducting plate (8) is arranged on the upper end; the heat conducting plate (8) is covered by a cylinder (5), and an openable top cover (6) is arranged on the top of the cylinder (5); a temperature sensor is distributed on the bottom of the heat conducting plate (8); a control circuit, a power module (12), and a semiconductor cooling plate (9) are arranged inside the base (1); the semiconductor cooling plate (9) is connected to the bottom of the heat conducting plate (8); a heat dissipation module (10) is arranged on the lower end of the semiconductor cooling plate (9); an exhaust fan (11) is arranged on the side of the heat dissipation module (10); and a heat dissipation window (2) corresponding to the position of the exhaust fan (11) is arranged on the side of the base (1).

2. A hot and cold plate analgesia instrument based on small animals according to claim 1, characterized in that: The cylinder (5) is made of transparent material.

3. A hot and cold plate analgesia instrument based on small animals according to claim 1, characterized in that: The top cover (6) is provided with ventilation holes (7).

4. A hot and cold plate analgesia instrument based on small animals according to claim 1, characterized in that: A heat-conducting silica gel pad is provided between the temperature sensor and the heat-conducting plate (8).

5. The hot and cold plate analgesia instrument based on small animals according to claim 1, characterized in that: The temperature sensor is covered with a closed shell.

6. A hot and cold plate analgesia instrument based on small animals according to claim 1, characterized in that: A wireless transmission antenna (13) is provided on one side of the base (1); the wireless transmission antenna (13) is connected to a control circuit.

7. A hot and cold plate analgesia instrument based on small animals according to claim 1, characterized in that: A foot switch connection port is provided on one side of the base (1) for connecting a foot switch.

8. The hot and cold plate analgesia instrument based on small animals according to claim 1, characterized in that: The front side of the base (1) is also provided with a USB interface (4); the USB interface (4) is connected to the control circuit.

9. The hot and cold plate analgesia instrument based on small animals according to claim 1, characterized in that: A camera is arranged inside the cylinder (5).

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