A wearable flexible instrument temperature rise test testing device

Abstract

The utility model belongs to the technical field of medical instrument evaluation, concretely relates to a wearable flexible instrument temperature rise test testing arrangement, the utility model's wearable flexible instrument temperature rise test testing arrangement is covered simulation skin outside human body model, utilizes the even heating layer, heating layer can realize even heating to skin layer, simulates the temperature of human body skin, and a plurality of temperature sensors are arranged between skin layer and even heating layer, and temperature sensor is connected with microprocessor through temperature detection module, and heating layer is connected with microprocessor through heating driver, utilizes microprocessor and can control heating driver according to the relationship between temperature sensor measured temperature and set temperature, realizes the control of constant temperature, realizes skin layer constant temperature. Wearable flexible instrument is worn on human body model, utilizes temperature detection module and collects the measured value of each temperature sensor in real time, evaluates the risk of wearable flexible instrument leading to human body local skin temperature rise under the condition of long time continuous wearing.

Description

Technical Field

[0001] This utility model belongs to the technical field of medical device evaluation, specifically relating to a wearable flexible device temperature rise test device. Background Technology

[0002] Flexible medical device circuits generate and accumulate Joule heat during operation. Prolonged continuous wear can lead to excessively high local skin temperatures, even posing a risk of low-temperature burns. Existing evaluation standards and technologies conduct temperature rise tests in a constant-temperature, open environment, failing to adequately consider situations where the flexible circuit is in close contact with the skin and heat dissipation is poor. To address this issue, this application develops a device as a testing platform to simulate a real clinical application environment and verify the temperature rise performance of flexible medical devices. Utility Model Content

[0003] To address the aforementioned technical issues, this invention provides a wearable flexible device temperature rise testing device. It utilizes a heat spreader and a heating layer to uniformly heat the skin layer, simulating the temperature of human skin. Multiple temperature sensors are placed between the skin layer and the heat spreader. The wearable flexible device is then worn on a human model, and a temperature detection module collects real-time measurements from the temperature sensors at various locations. The device is used to test the temperature rise of localized skin areas caused by prolonged continuous wear.

[0004] The technical problem to be solved by this utility model is achieved by the following technical solution: a wearable flexible device temperature rise test device, including a human body model, simulated skin and a control module; The simulated skin covers the outside of the human body model, and the wearable flexible device is worn on the human body model. The simulated skin comprises, from the outside in, a skin layer, a heat equalization layer, a heating layer, and an insulating layer; The control module includes a heating driver, a temperature sensor, a temperature detection module, and a microprocessor, with multiple temperature sensors disposed between the skin layer and the heat spreader layer; The temperature sensor is connected to the microprocessor via a temperature detection module; The heating layer is connected to the microprocessor via a heating driver; The temperature detection module is used to collect the measured values ​​of temperature sensors at various locations in real time; The microprocessor controls the heating driver based on the relationship between the temperature measured by the temperature sensor and the set temperature. An insulating layer protects the bottom power supply equipment and provides insulation; the heating layer and heat spreader layer achieve uniform heating of the skin layer.

[0005] Preferably, this utility model further includes a heating protection module, wherein the temperature sensor is connected to the heating driver through the heating protection module, and the heating protection module is connected to the microprocessor; The heating protection module compares the temperature measured by the temperature sensor with the hardware protection setting. When the temperature measured by the temperature sensor is higher than the hardware protection setting, the heating protection module sends a signal to shut down the heating driver. To avoid excessively high skin temperature caused by the Joule heat generated and accumulated during the operation of the flexible device circuitry, especially during prolonged continuous wear, the heating protection module compares the temperature measured by the temperature sensor with the hardware protection setting. When the temperature measured by the temperature sensor is higher than the hardware protection setting, it promptly shuts down the heating driver to prevent damage to the simulated skin or wearable flexible device.

[0006] In a preferred embodiment of this invention, the heating layer is a heating film or a heating sheet, which enables uniform heating of the plane.

[0007] In a preferred embodiment of this invention, the heating layer is a graphene heating element.

[0008] In a preferred embodiment of this invention, the heat-spreading layer is made of thermally conductive silicone, which has a high thermal conductivity.

[0009] In a preferred embodiment of this invention, the skin layer comprises human silicone and boron nitride or aluminum nitride doped in the human silicone, which can achieve thermal conductivity and simulate the softness and hardness of skin.

[0010] In a preferred embodiment of this invention, the skin layer further includes a colorant doped into human silicone to simulate the color of human skin.

[0011] In a preferred embodiment of this invention, the temperature sensors are arranged in an array on the heat exchange layer at intervals and connected to a microprocessor via circuitry. The array arrangement of the temperature sensors allows for real-time acquisition of the temperature at various points on the simulated skin, ensuring uniform temperature throughout.

[0012] Preferably, this utility model also includes a display screen, which is connected to the temperature detection module via a microprocessor and is used to display the measured values ​​of each temperature sensor.

[0013] Preferably, this utility model also includes an alarm module, which issues an alarm when the temperature measured by the temperature sensor is higher than the hardware protection setting value.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention relates to a wearable flexible device temperature rise testing apparatus. A simulated skin layer is wrapped around the outside of a human body model. The simulated skin layer consists of a skin layer, a heat spreader layer, a heating layer, and an insulating layer, arranged sequentially from the outside in. The heat spreader layer and the heating layer allow for uniform heating of the skin layer, simulating the temperature of human skin. Multiple temperature sensors are placed between the skin layer and the heat spreader layer. These temperature sensors are connected to a microprocessor via a temperature detection module, and the heating layer is connected to the microprocessor via a heating actuator. The microprocessor controls the heating actuator based on the relationship between the temperature measured by the temperature sensors and the set temperature, achieving constant temperature control and maintaining a constant temperature in the skin layer.

[0015] Wearable flexible devices are worn on human models, and temperature detection modules are used to collect real-time measurements from temperature sensors at various locations to assess the risk of localized skin temperature rise caused by wearable flexible devices under prolonged continuous wear. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the wearable flexible device temperature rise test device of this utility model; Figure 2 This is a schematic diagram of the structure of the simulated skin of this utility model; Figure 3 This is a schematic diagram of the control module of this utility model; In the diagram, 1 is the human body model, 2 is the skin layer, 3 is the heat spreader layer, 4 is the heating layer, and 5 is the insulation layer. 100 heating driver, 200 temperature sensor, 300 temperature detection module, 400 microprocessor, 500 heating protection module, 600 display screen. Detailed Implementation

[0017] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0018] like Figures 1-3 As shown, a wearable flexible device temperature rise test device includes a human body model 1, simulated skin, and a control module.

[0019] The simulated skin covers the outside of the human body model 1, and the wearable flexible device is worn on the human body model 1.

[0020] The simulated skin comprises, from the outside in, a skin layer 2, a heat equalization layer 3, a heating layer 4, and an insulating layer 5. The insulating layer 5 is made of insulating material.

[0021] The control module includes a heating driver 100, a temperature sensor 200, a temperature detection module 300, and a microprocessor 400, with multiple temperature sensors 200 disposed between the skin layer 2 and the heat spreader 3.

[0022] The temperature sensor 200 is connected to the microprocessor 400 via the temperature detection module 300.

[0023] The heating layer 4 is connected to the microprocessor 400 via the heating driver 100.

[0024] The temperature detection module 300 is used to collect the measurement values ​​of the temperature sensors 200 at various locations in real time.

[0025] The microprocessor 400 is used to control the heating driver 100 according to the relationship between the temperature measured by the temperature sensor 200 and the set temperature, so as to realize the constant temperature control of the simulated skin. In this embodiment, the heating driver 100 only has the function of controlling heating. Before the test, it controls the temperature of the simulated skin. During the test, under the condition of long-term continuous wear, the wearable flexible device causes the local skin temperature of the human body to rise, which cannot be adjusted, that is, it cannot actively cool down.

[0026] The wearable flexible device temperature rise test device also includes a heating protection module 500. The temperature sensor 200 is connected to the heating driver 100 through the heating protection module 500, and the heating protection module 500 is connected to the microprocessor 400.

[0027] The heating protection module 500 compares the temperature measured by the temperature sensor 200 with the hardware protection setting value. When the temperature measured by the temperature sensor is higher than the hardware protection setting value, the heating protection module 500 sends a signal to shut down the heating driver 100. In this embodiment, the heating protection module 500 is a comparison circuit used to compare the temperature measured by the temperature sensor 200 with the hardware protection setting value, thereby preventing the heating temperature from exceeding the high-temperature threshold and causing hardware damage.

[0028] The heating layer 4 is a heating film or heating sheet. In this embodiment, the heating layer 4 is a graphene heating sheet.

[0029] The heat-spreading layer 3 is made of thermally conductive silicone and the entire surface is coated with it.

[0030] The skin layer 2 comprises human silicone and boron nitride or aluminum nitride doped in human silicone.

[0031] The skin layer 2 also includes a colorant incorporated into human silicone.

[0032] The temperature sensors are arranged in an array at intervals on the heat spreader 3 and are connected to the microprocessor via circuitry.

[0033] The wearable flexible device temperature rise test device also includes a display screen 600, which is connected to the temperature detection module 300 via a microprocessor 400 and is used to display the measured values ​​of each temperature sensor.

[0034] The wearable flexible device temperature rise test device also includes an alarm module. When the temperature measured by the temperature sensor is higher than the hardware protection setting value, the alarm module issues an alarm.

[0035] Temperature measurement working principle: The multi-channel temperature sensor is located at the bottom of the skin layer 2. The temperature sensor is used to detect the temperature of the skin layer. The temperature detection module 300 collects the temperature signal and transmits it to the microcontroller. After digital signal processing such as filtering algorithm, it is transmitted to the display screen for display and storage.

[0036] Cyclic heating principle: The microcontroller controls the heating driver to heat the heating element. There are two temperature sensors. One sensor monitors the temperature in real time and feeds it back to the microcontroller. The microcontroller uses a PID algorithm to adjust the heating driver, ensuring the heating element reaches the set temperature. The heat is then evenly transferred to the skin layer through a heat spreader, achieving a constant skin temperature. The other temperature sensor is used for high-temperature hardware protection; heating is disconnected when the temperature exceeds a high-temperature threshold. This is used for single-cycle heating tests.

[0037] Single heating principle: The heating process is the same as cyclic heating, except that heating stops after the temperature reaches the set value.

Claims

1. A test device for temperature rise of wearable flexible devices, characterized in that: Includes a human body model (1), simulated skin, and a control module; The simulated skin is wrapped around the outside of the human body model (1), and the wearable flexible device is worn on the human body model (1); The simulated skin includes a skin layer (2), a heat equalization layer (3), a heating layer (4), and an insulating layer (5) arranged sequentially from the outside to the inside. The control module includes a heating driver (100), a temperature sensor (200), a temperature detection module (300), and a microprocessor (400), with multiple temperature sensors (200) disposed between the skin layer (2) and the heat spreader layer (3); The temperature sensor (200) is connected to the microprocessor (400) via the temperature detection module (300); The heating layer (4) is connected to the microprocessor (400) via a heating driver (100); The temperature detection module (300) is used to collect the measured values ​​of the temperature sensors (200) at various locations in real time; The microprocessor (400) is used to control the heating driver (100) based on the relationship between the temperature measured by the temperature sensor (200) and the set temperature.

2. The wearable flexible device temperature rise testing device according to claim 1, characterized in that: It also includes a heating protection module (500), the temperature sensor (200) is connected to the heating driver (100) through the heating protection module (500), and the heating protection module (500) is connected to the microprocessor (400); The heating protection module (500) is used to compare the temperature measured by the temperature sensor (200) with the hardware protection setting value. When the temperature measured by the temperature sensor is higher than the hardware protection setting value, the heating protection module (500) sends a signal to turn off the heating driver (100).

3. The wearable flexible device temperature rise testing device according to claim 1, characterized in that: The heating layer (4) is a heating film or heating sheet.

4. The wearable flexible device temperature rise testing device according to claim 1, characterized in that: The heating layer (4) is made of graphene heating sheet.

5. The wearable flexible device temperature rise test apparatus according to claim 1, characterized in that: The heat spreader (3) is made of thermally conductive silicone.

6. The wearable flexible device temperature rise testing device according to claim 1, characterized in that: The skin layer (2) comprises human silicone and boron nitride or aluminum nitride doped in human silicone.

7. The wearable flexible device temperature rise testing device according to claim 6, characterized in that: The skin layer (2) also includes a colorant incorporated into human silicone.

8. The wearable flexible device temperature rise testing device according to claim 1, characterized in that: The temperature sensors are arranged in an array at intervals on the heat spreader (3) and connected to the microprocessor (400) via circuitry.

9. The wearable flexible device temperature rise testing device according to claim 1, characterized in that: It also includes a display screen (600), which is connected to the temperature detection module (300) via a microprocessor (400) and is used to display the measured values ​​of each temperature sensor.

10. The wearable flexible device temperature rise testing device according to claim 2, characterized in that: It also includes an alarm module, which issues an alarm when the temperature measured by the temperature sensor is higher than the hardware protection setting value.

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