Wearable blue light treatment device for neonatal jaundice

Abstract

The invention belongs to the technical field of blue light treatment devices for jaundice, and particularly relates to a wearable blue light treatment device for neonatal jaundice, which comprises a treatment device main body, a plurality of patch type pressure sensors are arranged on the treatment device main body, and a control box body is arranged on the treatment device main body. A controller, a temperature detection module, a blue light heat dissipation module and a blue light switch light emitting module are arranged in the control box body, the temperature detection module is used for detecting temperature information in the control box body and sending the temperature information to the controller, and the controller is used for controlling the blue light switch heat dissipation module to be started after the received temperature information exceeds a preset threshold value; scattering light pieces are arranged at the positions of the patch type pressure sensors, transmission optical fibers are arranged between the blue light emitting modules and the scattering light pieces respectively, a light-transmitting plate is further arranged between the transmission optical fibers and the blue light emitting modules, and the light-transmitting plate is in a disc shape. By adopting the scheme, blue light can be distributed more uniformly.

Description

Technical Field

[0001] The present invention belongs to the technical field of jaundice blue light treatment devices, and in particular relates to a wearable neonatal jaundice blue light treatment device. Background Art

[0002] Clinical practice shows that approximately 50% to 90% of infants develop jaundice due to elevated serum bilirubin levels, with blood jaundice being the primary form. Excessive bilirubin levels can cause irreversible brain damage or even death. Currently, phototherapy devices for infant jaundice primarily include large blue light therapy devices and LED blue light blankets. While blue light therapy devices offer high treatment intensity, they are associated with high equipment costs, large footprint, short lamp life, and significant light degradation after long-term use, resulting in higher overall costs.

[0003] The LED blue light blanket is a portable device that uses light-emitting diodes as its light source. It has problems with poor blue light uniformity and prominent safety hazards. The main reason is that the power supply and light source are directly integrated into the blanket body, posing a risk of skin burns due to leakage.

[0004] In response to the above problems, a document with Chinese patent publication number CN104174118A discloses a blue light radiation device for treating neonatal jaundice. The blue light radiation device comprises a blue light source (1) and a plurality of side-emitting optical fibers (2). The head ends of the side-emitting optical fibers (2) are connected to the blue light source (1) via an optical fiber connector (3). The blue light source (1) emits blue light, which enters the optical fiber through coupling, propagates along the optical fiber, and leaks out uniformly, forming uniform blue light radiation.

[0005] However, there are certain limitations in actual use. Although blue light is coupled into the optical fiber, propagates along the fiber, and leaks out evenly, the intensity of the blue light is still highly dependent on the position of the fiber. Moreover, because the fiber and the baby are not in uniform contact, there are still localized unevenness.

[0006] Therefore, there is an urgent need for a wearable blue light treatment device for neonatal jaundice that can make the blue light distribution more uniform. Summary of the Invention

[0007] The purpose of the present invention is to provide a wearable blue light treatment device for neonatal jaundice, which can make the blue light distribution more uniform.

[0008] To achieve the above objectives, the present invention provides a wearable blue light therapy device for neonatal jaundice, comprising a therapy device body, a plurality of patch-type pressure sensors disposed on the therapy device body, a control box body disposed on the therapy device body, a controller, a temperature detection module, a blue light heat dissipation module, and a blue light-off module disposed within the control box body, the temperature detection module being configured to detect temperature information within the control box body and transmit the information to the controller, and the controller being configured to activate the blue light-off heat dissipation module upon receiving temperature information exceeding a preset threshold;

[0009] The patch-type pressure sensors are each provided with a scattering light sheet, a transmission optical fiber is respectively provided between the blue light emitting module and the scattering light sheet, and a light-transmitting plate is further provided between the transmission optical fiber and the blue light emitting module. The light-transmitting plate is disc-shaped, and the positional relationship of the transmission optical fiber on the light-transmitting plate is associated with the positional relationship of the scattering light sheet in the main body of the treatment device. The light-transmitting plate is provided with a low zone, a transition zone and a high zone. The transmittance of the low zone is lower than that of the transition zone and the high zone, and the transmittance of the transition zone is lower than that of the high zone. A driving motor is provided between the side surface of the light-transmitting plate and the inner wall of the control box body, and the light-transmitting plate is rotatably connected to the blue light emitting module.

[0010] The controller is also used to receive pressure information detected by the patch pressure sensor and generate an angle control instruction based on the pressure information. The drive motor is used to rotate the corresponding angle after receiving the angle control instruction so that the transmission optical fiber corresponding to the scattered light sheet in the area with the largest pressure information detected by the patch pressure sensor is directly opposite the low area.

[0011] The principle behind this invention is that patch-type pressure sensors are distributed throughout the device's main body, detecting the pressure applied to the infant's skin in real time. When the device is worn, areas in close contact with the skin (such as curved body surfaces) experience higher pressure, while areas not in contact (such as suspended areas) experience lower pressure.

[0012] The controller determines the distance between each area and the skin through pressure distribution. The greater the pressure, the closer the area is to the skin, the shorter the blue light transmission distance is, and the smaller the attenuation is. Conversely, the smaller the pressure, the longer the distance is, and the greater the attenuation is (the area that can be illuminated is larger, and the average light intensity decreases, expressed here as attenuation for ease of understanding).

[0013] The light-transmitting plate is disc-shaped and divided into a low zone (lowest transmittance), a transition zone, and a high zone (highest transmittance), with transmittance increasing in sequence. Transmittance gradients can be achieved through differences in material thickness or microstructure. The refraction angle can even be controlled, so that blue light from the low zone is refracted into the high zone, where it is then evenly dispersed through mirror deflection and rescattering in the low zone.

[0014] The distribution of the transmission optical fibers on the light-transmitting plate corresponds one-to-one to the position of the scattering light sheet in the main body of the treatment device. When the light-transmitting plate rotates, areas with different light transmittances can be aligned with specific transmission optical fibers, thereby adjusting the blue light intensity of the corresponding scattering light sheet. : After receiving the pressure information, the controller identifies the area with the greatest pressure (i.e., the area that is close to the skin and has low blue light attenuation), generates an angle control instruction, and drives the motor to rotate the light-transmitting plate so that the transmission optical fiber corresponding to this area is aligned with the low zone, reducing the blue light intensity (avoiding strong light exposure); at the same time, the transmission optical fiber corresponding to the area with less pressure (the area that is not close to the skin and has high blue light attenuation) automatically aligns with the transition zone or high zone, increasing the blue light intensity, compensating for transmission attenuation, and ultimately achieving uniform radiation across the entire area.

[0015] The temperature detection module monitors the temperature inside the control box in real time. When it exceeds a preset threshold (such as 37.5°C), the controller starts the blue light heat dissipation module (such as a fan or heat sink) to prevent high temperature from affecting the life of the light source or causing safety hazards, ensuring long-term stable operation of the device.

[0016] A pressure sensor identifies areas in close contact with the skin and reduces light intensity in the lower area of ​​the light-transmitting plate, preventing localized excessive light intensity due to close proximity and low attenuation, thus preventing the risk of skin burns. In the unpressurized, suspended area, where blue light has a long transmission distance and significant attenuation, this invention boosts light intensity in the upper area of ​​the light-transmitting plate to compensate for the attenuation difference and ensure consistent bilirubin metabolism efficiency.

[0017] A patch-type pressure sensor and a light-scattering sheet are integrated into the main body of the treatment device, flexibly deforming with the newborn's position. Pressure feedback dynamically adjusts light intensity, avoiding blind spots caused by positional fluctuations in traditional rigid light sources. Real-time monitoring and a heat dissipation mechanism ensure that the temperature inside the control box remains stable within a safe range, preventing overheating and failure of the blue light module, while also reducing the risk of exposure to high-temperature components in the newborn.

[0018] The design of a gradient transmittance between low, transition, and high zones eliminates the need for complex light source power adjustment. Dynamic light intensity distribution is achieved through mechanical rotation alone, reducing hardware costs. Blue light is transmitted through optical fibers to the diffuser, minimizing optical path loss. Combined with the control of the light-transmitting panel, this maximizes light energy utilization.

[0019] The device is wearable and automatically adjusts the light intensity, eliminating the need for frequent manual adjustments to body position or light source angle. Precise control of light intensity reduces the side effects of phototherapy, avoids repeated phototherapy due to uneven treatment, and alleviates the pain and medical expenses of children.

[0020] Furthermore, the patch-type pressure sensor adopts a flexible array layout, evenly distributed from the edge to the center of the treatment device body, with a spacing of 3-5 cm; the patch-type pressure sensor adopts a 0.1 mm thick flexible polyimide substrate, the surface is covered with a medical-grade silicone protective layer, the detection range of a single sensor is 0-5 kPa, and the sampling frequency is not less than 10 Hz.

[0021] Furthermore, the patch pressure sensor and the controller are connected by a shielded flexible wire, and the outer layer of the wire is wrapped with a metal braided mesh shielding layer to prevent the electromagnetic interference generated by the blue light emission module from affecting the pressure signal transmission; the controller has a built-in pressure signal filtering module, which pre-processes the pressure data through a sliding average algorithm to eliminate the high-frequency noise generated by the micro-movement of the newborn's limbs, and the filter window width can be automatically adjusted according to the pressure fluctuation amplitude.

[0022] Furthermore, the blue light heat dissipation module includes a micro axial fan, a thermal conductive silicone pad and a honeycomb heat dissipation fin. The air outlet of the micro axial fan faces the blue light emission module, and the air inlet is connected to the outside of the control box through an air duct, and a dust filter is provided in the air duct; the thermal conductive silicone pad fits tightly to the back of the blue light emission module and the heat dissipation fins; the ratio of the surface area of ​​the heat dissipation fins to the luminous area of ​​the blue light emission module is 5:1, and the fin spacing is 1.5mm.

[0023] Furthermore, the controller has a built-in temperature gradient control algorithm. When the temperature detection module detects that the temperature inside the control box is 35-40°C, it drives the micro axial fan to operate at 50% of the rated power; when the temperature exceeds 40°C, the fan switches to 100% of the rated power and sends an audible and visual alarm signal through the controller; when the temperature is lower than 30°C, the fan automatically stops running.

[0024] Furthermore, the blue light emission module adopts 3 groups of parallel blue light LED arrays, each group contains 12 high-efficiency LED chips with a wavelength of 460±10nm, and the LED chips are fixed by an aluminum substrate with a thickness of 1.5mm; the transmission optical fiber is a medical-grade quartz optical fiber with a diameter of 0.8mm, and its input end is coupled with the light-transmitting plate using an FC / PC connector, and the output end is fixed to the center of the scattering light sheet by epoxy resin glue, and the optical fiber bending radius is ≥20mm.

[0025] Furthermore, a constant current drive circuit is provided between the blue light emission module and the controller, with an output current adjustment range of 50-300mA and an adjustment accuracy of ±1mA; the controller is also used to perform differentiated current compensation for the three groups of LED arrays according to the rotation angle of the light-transmitting plate. When the transmission optical fiber is aligned with the high area of ​​the light-transmitting plate, the driving current of the corresponding LED array is reduced by 5-10%, and when it is aligned with the low area, it is increased by 10-15%; the rotation angle of the light-transmitting plate is detected by the encoder built into the drive motor.

[0026] Furthermore, the low area, transition area and high area of ​​the light-transmitting plate achieve a gradient distribution of light transmittance through gradual thickness or nano-scale microstructure.

[0027] Furthermore, the main body of the treatment device adopts a three-layer composite structure, the outer layer is a waterproof and breathable TPU film with a thickness of 0.1mm, the middle layer is a 0.5mm thick medical sponge, and the inner layer is a skin-friendly bamboo fiber fabric; the edge of the main body is provided with an elastic edging with a width of 10mm, and a copper wire with a diameter of 0.5mm is embedded in the edging as a shaping skeleton. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a three-dimensional diagram of the overall structure of a wearable blue light treatment device for neonatal jaundice according to an embodiment of the present invention;

[0029] Figure 2 A wearable blue light treatment device for neonatal jaundice according to an embodiment of the present invention Figure 1 Structural diagram from another perspective;

[0030] The reference numerals in the drawings of the specification include: treatment device body 1, patch pressure sensor 11, temperature detection module 12, blue light heat dissipation module 13. DETAILED DESCRIPTION

[0031] The following is further described in detail through specific implementation methods:

[0032] like Figure 1 、 Figure 2 As shown, this embodiment provides a wearable blue light treatment device for neonatal jaundice, including a treatment device body 1, on which a patch pressure sensor 11 is provided. There are multiple patch pressure sensors 11, and the multiple patch pressure sensors 11 are evenly distributed on the treatment device body 1. Through the design of the patch pressure sensor 11, the fit between the treatment device body 1 and the skin can be detected. A temperature detection module 12 is provided on the treatment device body 1, and a blue light heat dissipation module 13 is provided on the treatment device body 1.

[0033] The therapeutic device body 1 is made of medical-grade silicone and is designed as a vest. It covers the newborn's chest and back, as well as parts of the arms and legs. The pants underneath are designed to facilitate diaper changing and can also be designed to be easily put on and taken off. Specifically, a zipper-like or button-like structure is provided on the inside of the pants legs to achieve this function.

[0034] Several patch pressure sensors 11 are evenly distributed on the inner surface of the treatment device body 1 to form a matrix layout. The sensor has a diameter of 5 mm and a thickness of 0.2 mm and is connected to the controller 10 through a flexible circuit board (there is no safety risk in the low voltage detection circuit).

[0035] The control box is fixed to the outer mounting bracket 2 of the treatment device body 1. The controller 10, which uses an STM32F103 single-chip microcomputer, is responsible for processing pressure and temperature data and controlling the drive motor 7 and the blue light heat dissipation module 13. The blue light emission module 5 is a blue LED lamp bead. The temperature detection module 12 uses a DS18B20 digital temperature sensor to monitor the temperature inside the control box in real time. When the temperature exceeds 38°C, the heat dissipation mechanism is triggered. The blue light heat dissipation module 13 is an integrated small cooling fan, which creates convection with the outside world through the heat dissipation holes.

[0036] Scattered light is provided at each patch-type pressure sensor 11. A transmission fiber is provided between the blue light emitting module (located in the control box) and the scattering light sheet. A light-transmitting plate is also provided between the transmission fiber and the blue light emitting module. The light-transmitting plate is disc-shaped, with its surface divided into a low zone, a transition zone, and a high zone, with light transmittance increasing in sequence.

[0037] The distribution of the transmission optical fibers on the light-transmitting plate corresponds one-to-one with the position of the scattering sheet within the treatment device body 1, forming a light path mapping relationship. A drive motor is installed between the side of the light-transmitting plate and the inner wall of the control box. The motor shaft is fixed to the center of the light-transmitting plate, achieving a rotational connection between the light-transmitting plate and the blue light emission module.

[0038] The controller (located in the control box) receives pressure information detected by the patch-type pressure sensor 11, analyzes the pressure distribution, and generates an angle control command. Upon receiving the command, the drive motor rotates the corresponding angle, so that the transmission optical fiber corresponding to the scattering sheet in the area with the highest pressure information (i.e., the area in close contact with the skin) is aligned with the low zone of the light-transmitting plate, thereby reducing the blue light intensity in this area. The transmission optical fiber in the non-close contact area is automatically aligned with the transition zone or high zone to compensate for the light intensity attenuation.

[0039] In another embodiment, the treatment device body utilizes a one-piece bodysuit structure, with patch-type pressure sensors integrated into the body's inner layer in a flexible array. The sensors are evenly distributed from the edges to the center of the body, with spacing between adjacent sensors strictly controlled at 3-5 cm. This creates a 2×4 matrix layout, with three sensors on each arm and leg, covering the core treatment areas of the newborn's chest, back, and abdomen. This layout avoids the feeling of restraint caused by overcrowding at the edges while ensuring the required density of pressure detection in the central area.

[0040] The sensor base is made of 0.1mm thick flexible polyimide material, which has excellent bending resistance and can withstand repeated bending of 180° for more than 5,000 times without damage. Its biocompatibility complies with the ISO10993-5 cytotoxicity test standard. The surface of the base is covered with a 0.05mm thick medical-grade silicone protective layer with a Shore hardness of 20A and a soft touch to reduce friction irritation on the skin of newborns. The detection range of a single sensor is set to 0-5kPa, which can accurately capture pressure changes at the level of 0.1kPa, corresponding to subtle differences in the fit of the newborn's skin. The sampling frequency is fixed at 10Hz to ensure real-time tracking of pressure fluctuations caused by changes in body position (such as newborns turning over, limb micro-movements, etc.).

[0041] The SMD pressure sensor is connected to the controller in the control box via a shielded flexible cable. The cable has a diameter of 0.8mm and is shielded with an 80-mesh copper wire braid. Its shielding effectiveness is ≥60dB, effectively isolating the blue light emitting module's LED driver circuit from electromagnetic interference. The connection between the cable and the sensor is ultrasonically welded, and the welds are sealed with epoxy resin to prevent perspiration and liquid infiltration.

[0042] The controller features a built-in pressure signal filtering module based on an STM32F103 microcontroller, which pre-processes raw pressure data using a sliding average algorithm. This algorithm incorporates a dynamic window adjustment mechanism: when pressure fluctuations are detected ≤0.5 kPa, such as in a newborn's stable breathing state, the filter window is set to 3 sampling points to ensure rapid response. When fluctuations exceed 0.5 kPa, such as during limb movement, the window automatically expands to 5-8 sampling points, eliminating high-frequency noise through smoothing. Testing has shown that this algorithm can improve the signal-to-noise ratio of pressure data to over 40 dB, preventing misadjustment of the light-transmitting plate due to sudden pressure fluctuations.

[0043] The blue light heat dissipation module consists of a micro axial fan, a thermally conductive silicone pad, and honeycomb-shaped cooling fins. The micro axial fan is a 3010 model, measuring 30mm × 30mm × 10mm, with a rated voltage of 5V and a maximum airflow of 0.8 CFM. The air outlet, through an air scoop, faces the center of the blue light emission module's LED array. The air inlet is connected to a 5cm-long silicone air duct with a 0.3mm nylon dust filter embedded in the duct, which can intercept over 90% of airborne particulate matter, preventing dust from attaching and affecting LED luminous efficiency.

[0044] The thermal conductive silicone pad uses a 2.5W / (m·K) high thermal conductivity model with a thickness of 0.3mm. One side is attached to the back of the aluminum substrate of the blue light emitting module through thermal conductive silicone grease, and the other side is tightly connected to the honeycomb heat dissipation fins with a pressure of ≥5N / cm 2To ensure a tight fit. The heat sink fins are made of 6061 aluminum alloy, with an overall size of 40mm×40mm×8mm, 15 fins, a single fin scale of 1.5mm, and a total heat dissipation surface area of ​​12cm 2 , and the 2.4cm blue light emission module 2 The luminous area ratio is 5:1, and the heat generated by the LED during operation can be quickly dissipated through air convection.

[0045] The controller has a built-in temperature gradient control algorithm, which monitors the temperature inside the control box in real time through a DS18B20 temperature sensor (measurement accuracy ±0.5°C):

[0046] When the temperature is between 35-40°C, the fan runs at 50% rated power and a wind speed of 0.4 CFM, balancing heat dissipation efficiency and noise. At this time, the noise level is ≤35dB, which is lower than the noise threshold of the newborn sleeping environment.

[0047] When the temperature exceeds 40°C, the critical temperature for long-term LED operation, the fan immediately switches to 100% rated power and 5V voltage, and the controller triggers an audible and visual alarm: the red LED indicator on the control box flashes at a 1Hz frequency, and the built-in buzzer emits an intermittent 65dB warning tone until the temperature drops below 40°C. When the temperature drops below 30°C, the fan automatically stops, reducing energy consumption and unnecessary airflow disturbances. This mechanism stabilizes the temperature inside the control box within the 30-40°C range, preventing LED light degradation caused by high temperatures.

[0048] The blue light emission module uses three parallel LED arrays, each containing 12 blue light chips with a wavelength of 460±10nm (half-peak width ≤ 20nm). This wavelength is highly matched with the absorption peak of bilirubin (450-460nm), and the optical power density can reach 3mW / cm 2 The LED chip is fixed on a 1.5mm thick aluminum substrate through reflow soldering, and the bottom of the substrate is connected to the heat sink fins through a thermally conductive silicone pad to form a heat dissipation path.

[0049] The transmission fiber uses medical-grade quartz fiber with a core diameter of 0.8mm, a cladding diameter of 0.9mm, and a numerical aperture of 0.22. The transmission loss at a wavelength of 460nm is ≤0.3dB / m. The fiber length for this device is ≤30cm, and the total loss is ≤0.09dB. The fiber input uses an FC / PC connector, coupled to the light-transmitting plate via a precision sleeve. The output end is secured to the center groove of the light-scattering plate using medical epoxy adhesive. The adhesive layer thickness is controlled within 0.1mm to minimize light reflection losses. When routing the optical fiber, a bend radius of ≥20mm is strictly maintained to avoid light intensity attenuation caused by excessive bending.

[0050] A constant current drive circuit is provided between the blue light emission module and the controller. It uses the LM3409 chip, with an output current adjustment range of 50-300mA and an adjustment accuracy of ±1mA, corresponding to an LED light power output range of 0.5-3mW / cm 2 The drive circuit communicates with the controller via a bus and receives current regulation instructions in real time.

[0051] The drive motor within the control box has a built-in 16-bit encoder that provides real-time feedback on the rotation angle of the light-transmitting plate. Based on this angle information, the controller identifies the light-transmitting plate area (low zone, transition zone, and high zone) corresponding to each transmission fiber and performs differentiated current compensation for the LED array: When the transmission fiber is aligned with the high zone, the corresponding LED drive current is reduced by 5-10% (e.g., from 200mA to 180-190mA) to avoid excessive light intensity due to high transmittance. When aligned with the low zone, the current is reduced again by 10-15%, further reducing the light intensity. Through the coordinated mechanical adjustment of the light-transmitting plate and the electronic adjustment of the current, the deviation in the output light intensity of each diffuser can be reduced.

[0052] The light-transmitting plate is made of optical-grade PC material, with a diameter of 30mm and a thickness of 1mm. The light transmittance gradient is achieved by combining gradient thickness with nano-microstructure: low area, accounting for 30% of the area; the thickness increases to 1.2mm, and the surface is distributed with a nano-pit array with a diameter of 500nm and a density of 500 / μm. 2 , through the scattering and refraction of light, the transmittance is reduced to 30±5%; the transition zone accounts for 40% of the area: the thickness remains at 1mm, the diameter of the nano pits is increased to 800nm, and the density is 300 / μm 2 , light transmittance is 60±5%; high area accounts for 30% of the area: thickness is reduced to 0.8mm, nano pit diameter is 1μm, density is 100 / μm 2 , the light transmittance reaches 90±5%.

[0053] The nano-pits are formed through a nano-imprinting process, with a depth of 200nm, ensuring that the transmittance differences in different areas are stable.

[0054] The main body of the treatment device adopts a three-layer composite structure: the outer layer is a 0.1mm thick TPU film with excellent weather resistance; the middle layer is a 0.5mm thick medical sponge with a porosity of 90%, which can buffer the contact pressure between the sensor and the skin; the inner layer is 120g / m 2 The bamboo fiber fabric is antibacterial and prevents sweat accumulation.

[0055] The main body is edged with a 10mm-wide elastic edging made of 30A Shore hardness silicone. A single 0.5mm diameter soft copper wire is built into the edging as a shaping framework, allowing for slight shaping based on the newborn's body shape, ensuring the device fits snugly without creating a sense of pressure. The edging is ultrasonically welded to the main fabric, leaving no exposed seams to prevent skin scratches. These refined designs further enhance the device's pressure detection accuracy, blue light uniformity, heat dissipation efficiency, and wearer safety, meeting the clinical needs of neonatal jaundice phototherapy.

[0056] It should be noted in advance that, in the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integral connection; they may refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0057] The above is only an embodiment of the present invention, and the common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A wearable blue light treatment device for neonatal jaundice, comprising a treatment device body, characterized in that: The main body of the therapeutic device is provided with a plurality of patch-type pressure sensors, and the main body of the therapeutic device is provided with a control box body, which is provided with a controller, a temperature detection module, a blue light heat dissipation module and a blue-off light-emitting module. The temperature detection module is used to detect the temperature information in the control box body and send it to the controller. The controller is used to control the blue-off heat dissipation module to start after receiving the temperature information exceeding a preset threshold; The patch-type pressure sensors are each provided with a scattering light sheet, a transmission optical fiber is respectively provided between the blue light emitting module and the scattering light sheet, and a light-transmitting plate is further provided between the transmission optical fiber and the blue light emitting module. The light-transmitting plate is disc-shaped, and the positional relationship of the transmission optical fiber on the light-transmitting plate is associated with the positional relationship of the scattering light sheet in the main body of the treatment device. The light-transmitting plate is provided with a low zone, a transition zone and a high zone. The transmittance of the low zone is lower than that of the transition zone and the high zone, and the transmittance of the transition zone is lower than that of the high zone. A driving motor is provided between the side surface of the light-transmitting plate and the inner wall of the control box body, and the light-transmitting plate is rotatably connected to the blue light emitting module. The controller is also used to receive pressure information detected by the patch pressure sensor and generate an angle control instruction based on the pressure information. The drive motor is used to rotate the corresponding angle after receiving the angle control instruction so that the transmission optical fiber corresponding to the scattered light sheet in the area with the largest pressure information detected by the patch pressure sensor is directly opposite the low area.

2. The wearable blue light therapy device for neonatal jaundice according to claim 1, characterized in that: The patch-type pressure sensor adopts a flexible array layout and is evenly distributed from the edge to the center of the treatment device body, with a spacing of 3-5 cm; the patch-type pressure sensor adopts a 0.1 mm thick flexible polyimide substrate and is covered with a medical-grade silicone protective layer on the surface. The detection range of a single sensor is 0-5 kPa, and the sampling frequency is not less than 10 Hz.

3. The wearable blue light therapy device for neonatal jaundice according to claim 2, characterized in that: The patch pressure sensor and the controller are connected by a shielded flexible wire. The outer layer of the wire is wrapped with a metal braided mesh shielding layer to prevent electromagnetic interference generated by the blue light emission module from affecting the transmission of the pressure signal. The controller has a built-in pressure signal filtering module, which pre-processes the pressure data through a sliding average algorithm to eliminate high-frequency noise generated by micro-movements of the newborn's limbs. The filter window width can be automatically adjusted according to the amplitude of the pressure fluctuation.

4. The wearable blue light therapy device for neonatal jaundice according to claim 3, characterized in that: The blue light heat dissipation module includes a micro axial fan, a thermal conductive silicone pad and a honeycomb heat dissipation fin. The air outlet of the micro axial fan faces the blue light emission module, and the air inlet is connected to the outside of the control box through an air duct. The air duct is equipped with a dust filter. The thermal conductive silicone pad fits tightly against the back of the blue light emitting module and the heat sink fins. The ratio of the surface area of ​​the heat sink fins to the luminous area of ​​the blue light emitting module is 5:1, and the fin spacing is 1.5mm.

5. The wearable blue light therapy device for neonatal jaundice according to claim 4, characterized in that: The controller has a built-in temperature gradient control algorithm. When the temperature detection module detects that the temperature inside the control box is between 35-40°C, it drives the micro axial fan to operate at 50% of the rated power; when the temperature exceeds 37.5°C, the fan switches to 100% of the rated power and sends an audible and visual alarm signal through the controller; when the temperature is below 30°C, the fan automatically stops running.

6. The wearable blue light therapy device for neonatal jaundice according to claim 5, characterized in that: The blue light emission module uses three groups of parallel blue light LED arrays, each group contains 12 high-efficiency LED chips with a wavelength of 460±10nm. The LED chips are fixed by an aluminum substrate with a thickness of 1.5mm; the transmission optical fiber is a medical-grade quartz optical fiber with a diameter of 0.8mm. Its input end is coupled to the light-transmitting plate using an FC / PC connector, and the output end is fixed to the center of the scattering light sheet by epoxy resin glue. The optical fiber bending radius is ≥20mm.

7. The wearable blue light therapy device for neonatal jaundice according to claim 6, characterized in that: A constant current drive circuit is provided between the blue light emission module and the controller, with an output current adjustment range of 50-300mA and an adjustment accuracy of ±1mA. The controller is also used to perform differentiated current compensation on the three groups of LED arrays according to the rotation angle of the light-transmitting plate. When the transmission optical fiber is aligned with the high area of ​​the light-transmitting plate, the driving current of the corresponding LED array is reduced by 5-10%, and when it is aligned with the low area, it is increased by 10-15%. The rotation angle of the light-transmitting plate is detected by the encoder built into the drive motor.

8. The wearable blue light therapy device for neonatal jaundice according to claim 7, characterized in that: The low area, transition area and high area of ​​the light-transmitting plate achieve a gradient distribution of light transmittance through gradual thickness or nano-scale microstructure.

9. The wearable blue light therapy device for neonatal jaundice according to claim 8, characterized in that: The main body of the treatment device adopts a three-layer composite structure, with the outer layer being a waterproof and breathable TPU film with a thickness of 0.1mm, the middle layer being a 0.5mm thick medical sponge, and the inner layer being a skin-friendly bamboo fiber fabric; the edge of the main body is provided with an elastic edging with a width of 10mm, and a copper wire with a diameter of 0.5mm is embedded in the edging as a shaping skeleton.

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