Optical excitation test equipment for solar urticaria

Abstract

The invention belongs to the field of medical apparatus and instruments, and particularly relates to optical excitation test equipment for solar urticaria, which comprises a guide rail base, the guide rail base is an assembly main body of the test equipment, one side of the guide rail base is slidably connected with a sliding frame, the top of the sliding frame is slidably connected with an adjusting frame, and the adjusting frame is connected with the guide rail base. The adjusting frame and the guide rail base are parallel to each other, and an excitation light source for exciting solar urticaria is assembled on the adjusting frame; the support is fixedly installed on the side, away from the sliding frame, of the guide rail base, and electric sliding rails are symmetrically arranged on the two sides of the top of the support. Through the combination of the guide rail base, the sliding frame and the adjusting frame, the test distance of the excitation light source can be flexibly adjusted, the design of the clamping groove and the clamping ball is matched to ensure the stability, position deviation caused by external force is avoided, the excitation light source can be conveniently replaced according to actual test requirements, and the diagnosis requirements of different types of sunlight urticaria are met.

Description

Technical Field

[0001] The present invention belongs to the field of medical devices, and more specifically, relates to a light excitation test device for solar urticaria. Background Art

[0002] Solar urticaria is a light-induced skin disease mediated by immunoglobulin E (IgE), characterized by the immediate appearance of erythema, wheals, and pruritus in the light-exposed area after exposure to light (including ultraviolet and / or visible light). In severe cases, systemic reactions such as headache and dizziness may occur. This disease is more common in women, and the peak age of onset for both men and women is concentrated between 20 and 40 years old. It should be noted that the main action spectrum triggering solar urticaria varies among different ethnic groups, with visible light being the main component in Asian countries, while UVB (wavelength 280 - 320 nm) is relatively rare. Therefore, clarifying the specific triggers of the disease and their corresponding spectral bands is crucial for effectively avoiding disease triggers and is of great significance for disease management and standardized treatment.

[0003] Currently, the light excitation test for solar urticaria faces significant limitations in equipment applicability and clinical application. Commercial medical lighting or projection lamps for examination usually cannot meet the strict requirements for irradiation intensity and distance in the test. The existing practice is to temporarily modify or adjust general medical lighting tools to meet the basic needs of the test. Due to the lack of precise control of specific wavelengths, it is difficult to ensure the consistency and repeatability of experimental conditions, affecting the reliability and accuracy of diagnostic results. Therefore, we present a light excitation test device for solar urticaria, which is specifically used for the excitation test and research of solar urticaria. Summary of the Invention

[0004] To facilitate the excitation test and research of solar urticaria, the present invention provides a light excitation test device for solar urticaria.

[0005] The technical solution is as follows: A photoexcitation test device for solar urticaria, comprising a guide rail base, which is the assembly main body of this test device. A sliding frame is slidably connected to one side of the guide rail base. An adjusting frame is slidably connected to the top of the sliding frame. The adjusting frame and the guide rail base are parallel to each other. An excitation light source for exciting solar urticaria is assembled on the adjusting frame. It also includes a bracket fixedly installed on the side of the guide rail base away from the sliding frame. Electric slide rails are symmetrically arranged on both sides of the top of the bracket. A support plate is slidably installed on the electric slide rails. A through hole is opened inside the support plate. A light-shielding plate is fixedly installed in the through hole of the support plate. A plurality of light-transmitting through holes are opened in the light-shielding plate. The height of the light-transmitting through holes in the light-shielding plate is the same as that of the excitation light source. A detection mechanism for detecting the test skin is provided on the side of the light-shielding plate facing away from the excitation light source. The detection mechanism includes a mounting frame rotatably connected to one side of the backlight surface of the light-shielding plate. A plurality of microneedle patches are assembled on the mounting frame through an arc-shaped plate. Dense needles are provided on the surface of the microneedle patch. A microfluidic chip for analyzing skin interstitial fluid is built in the microneedle patch. The microneedle patch is used to detect the exact concentrations of mediators such as histamine and eosinophil chemotactic factor in the photoexcited skin interstitial fluid, so as to assist doctors in judging the condition of solar urticaria. A motor is fixedly installed on the light-shielding plate. The output shaft of the motor is connected to the mounting frame. An electric push rod is fixedly installed on the guide rail base. The telescopic rod of the electric push rod is connected to the sliding frame. A laser emitter is installed at the position of the excitation light source. A photoelectric receiver for receiving the laser of the laser emitter is installed at the bottom of the support plate to measure the distance between the excitation light source and the light-shielding plate in real time.

[0006] Further, the excitation light source includes a mounting plate fixedly installed on the adjusting frame. The mounting plate is located on the side of the adjusting frame close to the light-shielding plate. A power supply base is arranged on the adjusting frame. A light source bulb is installed on the power supply base through a threaded interface. A lamp shade is arranged around the light source bulb of the power supply base. A light-transmitting plate is rotatably and snap-fitted at the opening of the lamp shade.

[0007] Further, on the stroke section of the sliding fit between the guide rail base and the adjusting frame and the sliding frame, card slots are evenly spaced. The spacing of the card slots is accurate to the minimum adjustment distance of the photoexcitation test. Card balls are installed at the sliding docking positions of the sliding frame with the guide rail base and the adjusting frame. The card balls cooperate with and snap into the card slots on the guide rail base and the adjusting frame. Spring one is provided between the sliding frame and the card balls. When the sliding frame slides on the guide rail base or the adjusting frame, the card balls are snapped into the corresponding card slots under the action of spring one, providing good stability and reliability.

[0008] Further, a docking block is rotatably connected to the end of the arc-shaped plate of the mounting frame. The microneedle patch is slidably assembled on the docking block of the mounting frame. Spring two is provided between the microneedle patch and the docking block. The microneedle patch on the mounting frame can rotate and elastically contact the test skin of the patient.

[0009] Further, a buzzer is assembled on the sliding carriage. The buzzer is electrically connected to the laser emitter and the photoelectric receiver through a built-in control module. The buzzer is used to emit a warning sound when the safe test distance is exceeded. When the irradiation distance real-time monitored by the laser emitter and the photoelectric receiver is less than the safe test distance, the buzzer can give an alarm in time.

[0010] Further, a dermatoscope is fixedly installed on one side of the support plate close to the light-shielding plate. The dermatoscope is inclined inwards and is used to observe the test site of the patient's back skin. A display screen is installed on the sliding carriage. The display screen and the dermatoscope are electrically connected. The display screen is used to display the test skin condition photographed on the dermatoscope in real time.

[0011] Further, a heat dissipation component for dissipating heat from the excitation light source is provided on the adjusting frame. The heat dissipation component includes a heat dissipation fan and an air inlet pipe. The heat dissipation fan is fixedly installed on the mounting plate of the excitation light source. The air outlet of the heat dissipation fan is communicated with the lamp cover of the excitation light source through the air inlet pipe. When the light source bulb continuously works in the lamp cover, the heat dissipation fan blows air into the lamp cover through the air inlet pipe to improve the heat dissipation effect when the light source bulb works.

[0012] Further, a temperature switch is arranged in the lamp cover. The temperature switch internally controls the switch of the power supply base through a controller. The temperature switch is used to monitor the temperature of the light source bulb in the lamp cover. When the test temperature monitored by the temperature switch exceeds the preset range, the power supply of the power supply base can be automatically cut off to make the light source bulb go out in time.

[0013] The present invention has the following advantages:

[0014] 1. Through the combination of the guide rail base, the sliding carriage and the adjusting frame, the present invention can flexibly adjust the distance of the excitation light source test, and cooperate with the design of the card slot and the card ball to ensure stability, avoid position deviation caused by external force, and the excitation light source can be conveniently replaced according to actual test requirements to adapt to the diagnostic needs of different types of solar urticaria.

[0015] 2. The present invention can collect interstitial fluid by slightly puncturing the skin with a microneedle patch, and internally analyze the concentrations of biomarkers such as histamine and eosinophil chemotactic factor with a microfluidic chip. At the same time, it integrates a dermatoscope and a display screen, can observe and record the changes of the patient's skin reaction in real time, provides objective data support, and assists doctors to judge the condition more accurately.

[0016] 3. The present invention is equipped with a laser emitter and a photoelectric receiver to measure in real time and ensure the safe distance between the excitation light source and the patient's skin. The buzzer gives a warning when the safe distance is exceeded to ensure the safe progress of the test.

[0017] 4. Through the design of the cooling fan and temperature switch, the present invention effectively prevents the excitation light source from overheating, extends the service life of the device, and ensures the safety during the test and operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic diagram of the present invention.

[0019] Figure 2 It is a connection relationship diagram of the guide rail base, sliding frame, adjustment frame and excitation light source of the present invention.

[0020] Figure 3 It is a schematic diagram of the adjustment frame, mounting plate, power supply base, light source bulb and lamp shade of the present invention.

[0021] Figure 4 It is a schematic diagram of the cooperation relationship of the guide rail base, sliding frame, adjustment frame and clamping ball of the present invention.

[0022] Figure 5 It is a three-dimensional structure schematic diagram of the mounting frame, microneedle patch and motor of the present invention.

[0023] Figure 6 It is a connection relationship diagram of the mounting frame, microneedle patch, docking block and spring two of the present invention.

[0024] Figure 7 It is a schematic diagram of the bracket, electric slide rail, support plate, light-shielding plate and dermoscope of the present invention.

[0025] Figure 8 It is a schematic diagram of the cooperation relationship of the lamp shade, cooling fan, air inlet pipe and temperature switch of the present invention.

[0026] Reference numerals in the drawings: 1-guide rail base, 2-sliding frame, 3-adjustment frame, 4-excitation light source, 41-mounting plate, 42-power supply base, 43-light source bulb, 44-lamp shade, 441-light-transmitting plate, 5-clamping ball, 51-card slot, 52-spring one, 6-bracket, 7-electric slide rail, 8-support plate, 9-light-shielding plate, 91-light-transmitting through hole, 10-detection mechanism, 101-mounting frame, 102-microneedle patch, 103-motor, 104-docking block, 105-spring two, 11-electric push rod, 111-buzzer, 12-laser emitter, 13-photoelectric receiver, 14-dermoscope, 15-display screen, 16-cooling member, 161-cooling fan, 162-air inlet pipe, 17-temperature switch. DETAILED DESCRIPTION OF THE INVENTION

[0027] It should be noted first that in the embodiments described differently, the same components are provided with the same reference signs or the same component names, wherein the disclosure contained throughout the specification can be meaningfully transferred to the same components with the same reference signs or the same component names. The positional descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated drawings and are meaningfully transferred to the new positions when the positions change.

[0028] Example 1: A photoexcitation test device for solar urticaria, such as Figures 1 - 5As shown in the figure, it includes a guide rail base 1, which is the assembly main body of this test equipment. A sliding frame 2 is slidably connected to one side of the guide rail base 1. An adjusting frame 3 is slidably connected to the top of the sliding frame 2. The adjusting frame 3 and the guide rail base 1 are parallel to each other. An excitation light source 4 for exciting solar urticaria is assembled on the adjusting frame 3. It also includes a bracket 6 fixedly installed on the side of the guide rail base 1 away from the sliding frame 2. Electric slide rails 7 are symmetrically arranged on both sides of the top of the bracket 6. A support plate 8 is slidably installed on the electric slide rails 7. A through hole is opened inside the support plate 8. A light-shielding plate 9 is fixedly installed in the through hole of the support plate 8. A plurality of light-transmitting through holes 91 are opened in the light-shielding plate 9. The height of the light-transmitting through holes 91 in the light-shielding plate 9 is the same as that of the excitation light source 4. A detection mechanism 10 for detecting the test skin is provided on the side of the light-shielding plate 9 facing away from the excitation light source 4. The detection mechanism 10 includes a mounting frame 101 rotatably connected to one side of the backlight surface of the light-shielding plate 9. A plurality of microneedle patches 102 are assembled on the mounting frame 101 through an arc-shaped plate. Dense needles are provided on the surface of the microneedle patches 102. A microfluidic chip for analyzing skin interstitial fluid is built in the microneedle patches 102. The microneedle patches 102 are used to detect the exact concentrations of mediators such as histamine and eosinophil chemotactic factor in the light-excited skin interstitial fluid, so as to assist doctors in judging the condition of solar urticaria. A motor 103 is fixedly installed on the light-shielding plate 9. The output shaft of the motor 103 is connected to the mounting frame 101. An electric push rod 11 is fixedly installed on the guide rail base 1. The telescopic rod of the electric push rod 11 is connected to the sliding frame 2. A laser emitter 12 is installed at the position of the excitation light source 4. A photoelectric receiver 13 for receiving the laser of the laser emitter 12 is installed at the bottom of the support plate 8 to measure the distance between the excitation light source 4 and the light-shielding plate 9 in real time. After the patient sits on a chair on one side of the backlight surface of the light-shielding plate 9 and presses the back against the light-transmitting through holes 91 on the light-shielding plate 9, according to the actual needs of the light excitation test, a suitable light source (UVA, UVB or visible light) is selected and installed on the excitation light source 4. The excitation light source 4 is enabled to irradiate towards the light-shielding plate 9, so that the light emitted by the excitation light source 4 will pass through the light-transmitting through holes 91 on the light-shielding plate 9 and irradiate on a specific area of the patient's back. At the same time, the electric push rod 11 is used to drive the sliding frame 2 and the adjusting frame 3 to slide integrally on the guide rail base 1, cooperate with the laser emitter 12 and the photoelectric receiver 13 to accurately measure the distance of the test, and then synchronously observe whether the skin of the patient exposed to the light source shows urticaria (wheals), redness or other allergic reactions. When allergic reactions occur on the patient's skin, the motor 103 drives the microneedle patches 102 on the mounting frame 101 to slightly pierce the allergic skin. The microneedle patches 102 contact and extract the liquid containing biomarkers (such as histamine and eosinophil chemotactic factor) to assist doctors in judging the severity of the patient's allergic condition.

[0029] As Figure 2 and Figure 3As shown in the figure, the excitation light source 4 includes a mounting plate 41 fixedly installed on the adjustment frame 3. The mounting plate 41 is located on one side of the adjustment frame 3 close to the light shielding plate 9. A power supply base 42 is provided on the adjustment frame 3. The power supply base 42 is installed with a light source bulb 43 through a threaded interface. A lamp cover 44 is provided around the light source bulb 43 of the power supply base 42. A light-transmitting plate 441 is rotatably and snap-fitted at the opening of the lamp cover 44. After removing the light-transmitting plate 441 by rotation, different light source bulbs 43 can be replaced according to the actual light excitation test requirements.

[0030] As Figures 2 - 4 shown in the figure, on the stroke section of the sliding frame 2 which is slidably matched with the guide rail base 1 and the adjustment frame 3, card slots 51 are evenly spaced. The spacing of the card slots 51 is accurate to the minimum adjustment distance of the excitation test. At the sliding connection of the sliding frame 2 to the guide rail base 1 and the adjustment frame 3, card balls 5 are installed. The card balls 5 cooperate with and snap into the card slots 51 on the guide rail base 1 and the adjustment frame 3. A first spring 52 is provided between the sliding frame 2 and the card balls 5. When the sliding frame 2 slides on the guide rail base 1 or the adjustment frame 3, the card balls 5 are snapped into the corresponding card slots 51 under the action of the first spring 52, providing good stability and reliability, and avoiding problems such as loosening or falling off caused by vibration or other external forces.

[0031] As Figure 1 and Figure 3 shown in the figure, a buzzer 111 is assembled on the sliding frame 2. The buzzer 111 is electrically connected to the laser emitter 12 and the photoelectric receiver 13 through a built-in control module. The buzzer 111 is used to emit a warning sound when the safety test distance is exceeded. When the irradiation distance real-time monitored by the laser emitter 12 and the photoelectric receiver 13 is less than the safety test distance, the buzzer 111 can give an alarm in time to ensure the safety of the test.

[0032] As Figure 1 and Figure 7 shown in the figure, a dermatoscope 14 is fixedly installed on one side of the support plate 8 close to the light shielding plate 9. The dermatoscope 14 is inclined inward and is used to observe the test site of the patient's back skin. A display screen 15 is installed on the sliding frame 2. The display screen 15 is electrically connected to the dermatoscope 14. The display screen 15 is used to display the test skin condition photographed on the dermatoscope 14 in real time, facilitating the doctor to observe the changes of the patient's test skin in real time.

[0033] When using this device to conduct a photoprovocation test for patients with solar urticaria, after the patient is seated on the back side of the light shield 9, the electric slide rail 7 is activated to drive the light shield 9 on the support plate 8 to approach the patient's back, so that the back of the patient for the test closely adheres to the light-transmitting opening 91 area on the light shield 9, ensuring that the test site is aligned with the light source irradiation path. The doctor selects an appropriate test light source type (such as UVA, UVB, or visible light) according to the requirements of the photoprovocation test, quickly replaces the light source bulb 43 through the power supply base 42 on the adjustment frame 3, and tightens the snap-on light-transmitting plate 441 on the lamp shade 44 to fix the light source. When conducting the provocation test, first start the electric push rod 11, and the electric push rod 11 drives the sliding frame 2 to move smoothly along the guide rail base 1. When the sliding frame 2 moves, the ball 5 is temporarily retracted under the action of an external force, and the first spring 52 is compressed; once the sliding frame 2 moves to the target position, the resilience of the first spring 52 will immediately push the ball 5 into the corresponding card slot 51, making a slight "click" sound and forming a mechanical lock, so that the sliding frame 2 cannot slide by itself due to vibration or external force when it is stationary, ensuring that the distance between the excitation light source 4 and the patient's skin is fixed. At the same time, it allows the doctor to perceive the positioning accuracy through clear tactile feedback when adjusting the position. The moving sliding frame 2 synchronously drives the excitation light source 4 on the adjustment frame 3 to advance towards the light shield 9. During this process, the laser emitter 12 and the photoelectric receiver 13 are in real-time linkage, accurately calculating the irradiation distance between the light source and the patient's skin to ensure that the test parameters meet the safety standards. If it is monitored that the test distance is too close and exceeds the safety range, the buzzer 111 immediately triggers an audible and visual alarm to prompt the doctor to adjust the device position; when the distance reaches the preset test range, the power supply base 42 supplies power to the light source bulb 43, so that the excitation light source 4 is automatically lit, and the light of the light source bulb 43 forms a uniform light spot through the light-transmitting opening 91 of the light shield 9, accurately covering the target area on the patient's back. The doctor observes the high-definition images taken by the dermoscope 14 in real time through the display screen 15 on the sliding frame 2, and synchronously tracks the subtle changes on the skin surface (such as erythema, wheals, or swelling) to provide an intuitive basis for subsequent judgment.

[0034] Embodiment 2: On the basis of Embodiment 1, as Figure 5 and Figure 6 shown, a docking block 104 is rotatably connected to the end of the arc-shaped plate of the mounting frame 101. The microneedle patch 102 is slidably assembled on the docking block 104 of the mounting frame 101. A second spring 105 is provided between the microneedle patch 102 and the docking block 104. The microneedle patch 102 on the mounting frame 101 can rotate and elastically contact the test skin of the patient, so that the microneedle patch 102 can safely collect the interstitial fluid on the test skin of the patient.

[0035] As Figure 1 and Figure 8As shown, the adjustment frame 3 is provided with a heat sink 16 for dissipating heat from the excitation light source 4, and the heat sink 16 includes a heat dissipation fan 161 and an air inlet pipe 162. The heat dissipation fan 161 is fixedly mounted on the mounting plate 41 of the excitation light source 4, and the air outlet of the heat dissipation fan 161 is connected to the lampshade 44 of the excitation light source 4 through the air inlet pipe 162. When the light source bulb 43 continues to work in the lampshade 44, the heat dissipation fan 161 blows air into the lampshade 44 through the air inlet pipe 162, thereby improving the heat dissipation effect of the light source bulb 43 when it is working and extending the service life of the light source bulb 43.

[0036] like Figure 8 As shown, a temperature switch 17 is provided in the lampshade 44. The temperature switch 17 has a built-in controller to control the switch of the power supply socket 42. The temperature switch 17 is used to monitor the temperature of the light source bulb 43 in the lampshade 44. When the temperature monitored by the temperature switch 17 exceeds a preset range during the test, the power supply of the power supply socket 42 can be automatically cut off, so that the light source bulb 43 is extinguished in time, thereby further ensuring the safety of the test process.

[0037] If the patient's skin shows an abnormal reaction after light excitation, the detection mechanism 10 can be activated, and the motor 103 drives the mounting frame 101 to rotate, so that the microneedle patch 102 at the end of the arc plate gently fits the allergic area. The microneedle patch 102 uses the elastic buffer design of the spring 2 105 to ensure that the dense needles penetrate the superficial layer of the epidermis with a controllable pressure to avoid excessive damage to the skin. The microfluidic chip built into the microneedle patch 102 actively extracts interstitial fluid through capillary action, and analyzes the concentration changes of key biomarkers such as histamine and eosinophilic chemokine in real time. During the detection process, the cooling fan 161 on the adjustment frame 3 is synchronously activated, and cold air is continuously delivered to the closed lampshade 44 through the air inlet pipe 162. The dynamic monitoring function of the temperature switch 17 is used to prevent the light source bulb 43 in the lampshade 44 from overheating. After the detection is completed, the motor 103 drives the microneedle patch 102 on the mounting frame 101 to automatically reset, and the sampling data is wirelessly transmitted to the terminal device to generate a visual report.

[0038] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A photoexcitation test device for solar urticaria, comprising a guide rail base (1), on one side of the guide rail base (1) is slidably connected a sliding frame (2), on the top of the sliding frame (2) is slidably connected an adjusting frame (3), and an excitation light source (4) is assembled on the adjusting frame (3); Characterized in that, It further includes a bracket (6) fixedly installed on the side of the guide rail base (1) away from the sliding frame (2), on both sides of the top of the bracket (6) are symmetrically provided electric slide rails (7), on the electric slide rails (7) is slidably installed a support plate (8), inside the support plate (8) is fixedly installed a light-shielding plate (9), a plurality of light-transmitting openings (91) are opened in the light-shielding plate (9), and a detection mechanism (10) for detecting the test skin is provided on the side of the light-shielding plate (9) facing away from the excitation light source (4); The detection mechanism (10) includes a mounting frame (101) rotatably connected to one side of the backlight surface of the light-shielding plate (9), on the mounting frame (101) are assembled a plurality of microneedle patches (102) through arc-shaped plates, the surface of the microneedle patches (102) is provided with dense needles, the microneedle patches (102) are internally provided with a microfluidic chip for analyzing skin interstitial fluid, and a motor (103) is fixedly installed on the light-shielding plate (9), and the output shaft of the motor (103) is connected to the mounting frame (101); An electric push rod (11) is fixedly installed on the guide rail base (1), the telescopic rod of the electric push rod (11) is connected to the sliding frame (2), a laser emitter (12) is installed at the excitation light source (4), and a photoelectric receiver (13) is installed at the support plate (8).

2. The photoexcitation test device for solar urticaria according to claim 1, characterized in that, The excitation light source (4) includes a mounting plate (41) fixedly installed on the adjusting frame (3), the mounting plate (41) is located on the side of the adjusting frame (3) close to the light-shielding plate (9), a power supply base (42) is arranged on the adjusting frame (3), a light source bulb (43) is installed on the power supply base (42) through a threaded interface, a lamp shade (44) is arranged around the light source bulb (43) of the power supply base (42), and a light-transmitting plate (441) is rotatably and snap-fitted at the opening of the lamp shade (44).

3. The photoexcitation test device for solar urticaria according to claim 2, characterized in that, On the stroke section where the guide rail base (1) and the adjusting frame (3) are slidably matched with the sliding frame (2), card slots (51) are evenly spaced, the spacing of the card slots (51) is accurate to the minimum adjustment distance of the excitation test, and ball catches (5) are installed at the sliding joints of the sliding frame (2) with the guide rail base (1) and the adjusting frame (3), the ball catches (5) cooperate with and snap into the card slots (51) on the guide rail base (1) and the adjusting frame (3), and a first spring (52) is provided between the sliding frame (2) and the ball catches (5).

4. The photoexcitation test device for solar urticaria according to claim 3, characterized in that, The end of the arc-shaped plate of the mounting frame (101) is rotatably connected with a docking block (104), the microneedle patch (102) is slidably assembled on the docking block (104) of the mounting frame (101), and a second spring (105) is provided between the microneedle patch (102) and the docking block (104).

5. The photoexcitation test device for solar urticaria according to claim 4, characterized in that, A buzzer (111) is assembled on the sliding frame (2). The buzzer (111) is electrically connected to the laser emitter (12) and the photoelectric receiver (13) through a built-in control module. The buzzer (111) is used to emit a warning sound when the safe test distance is exceeded.

6. The photoexcitation test device for solar urticaria according to claim 5, characterized in that, A dermatoscope (14) is fixedly installed on one side of the support plate (8) close to the light shielding plate (9). The dermatoscope (14) inclines inwards and is used to observe the test site of the patient's back skin. A display screen (15) is installed on the sliding frame (2). The display screen (15) is electrically connected to the dermatoscope (14). The display screen (15) is used to display the test skin condition photographed on the dermatoscope (14) in real time.

7. The photoexcitation test device for solar urticaria according to claim 6, characterized in that, A heat dissipation component (16) for dissipating heat of the excitation light source (4) is provided on the adjustment frame (3). The heat dissipation component (16) includes a heat dissipation fan (161) and an air inlet pipe (162). The heat dissipation fan (161) is fixedly installed on the mounting plate (41) of the excitation light source (4). The air outlet of the heat dissipation fan (161) is communicated to the lamp housing (44) of the excitation light source (4) through the air inlet pipe (162).

8. A photoprovocation test device for solar urticaria according to claim 7, characterized in that, A temperature switch (17) is arranged in the lamp housing (44). The temperature switch (17) controls the switch of the power supply base (42) through a built-in controller. The temperature switch (17) is used to monitor the temperature of the light source bulb (43) in the lamp housing (44).

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