CN107998510B - Phototherapy film for infants - Google Patents
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- CN107998510B CN107998510B CN201610943267.3A CN201610943267A CN107998510B CN 107998510 B CN107998510 B CN 107998510B CN 201610943267 A CN201610943267 A CN 201610943267A CN 107998510 B CN107998510 B CN 107998510B
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
- A61N5/0621—Hyperbilirubinemia, jaundice treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0626—Monitoring, verifying, controlling systems and methods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0632—Constructional aspects of the apparatus
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/065—Light sources therefor
- A61N2005/0651—Diodes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
- A61N2005/0662—Visible light
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0664—Details
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
The invention provides an infant phototherapy film, which comprises a light source case, a blue light conduction module, a control module, a power supply module and a light guide film, wherein light emitted by the blue light conduction module sequentially enters the light guide film through a condensing lens and a coaxial optical fiber, the front end of the coaxial optical fiber is positioned in the light guide film, the tail end of the coaxial optical fiber is positioned in the lower end of the case, a handle is arranged at the top end of the case, a touch liquid crystal display screen is arranged at the upper end of the case, the touch liquid crystal display screen is connected with the control module, and in addition, the power supply module is respectively connected with the blue light conduction module, the touch liquid crystal display screen and the control module. According to the invention, a touch liquid crystal display technology of Cortex-M3 and FPGA is adopted, so that a worker can timely and accurately check and control the condition of the blue light blanket, and the work is convenient; the control interface of the touch liquid crystal display screen is more beautiful and visual.
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to an infant phototherapy membrane.
Background
Clinical practice shows that about 50% -90% of newborns can present clinical symptoms of jaundice due to excessive serum bilirubin concentration in the body. The reason is that red blood cells in the blood die to bilirubin, which is insoluble in water and is usually excreted after the liver converts to bile. However, the limited liver function of the newborn infant does not sufficiently convert bilirubin into bile, which results in an excessively high bilirubin concentration in the infant's blood. Thus, blood jaundice is the predominant form of neonatal jaundice. An infant with too high bilirubin concentration may cause irreversible brain loss and even death. Phototherapy is one of the common means for treating neonatal jaundice, the skin of an infant is irradiated by blue light, bilirubin generates photoerythrocin through photochemical reaction, the photoerythrocin is dissolved in water, and then the photoerythrocin is eliminated through urine excretion, so that the metabolism of the bilirubin is promoted, and the aim of treatment is achieved.
At present, the existing medical infant jaundice phototherapy equipment is mainly divided into two main categories: the large-scale comprehensive infant jaundice therapeutic apparatus adopting the blue light lamp has the advantages of high price, large occupied space and easy aging, and is only suitable for the special infant beds of high-specification hospitals; another is a blue light blanket made of light emitting diodes, but the blue light is uneven, the treatment effect is not ideal, in addition, as the light emitting diode power supply and the light source are directly arranged in the treatment blanket, potential safety hazards are caused, and once the electric leakage or the broken light emitting diodes cause direct damage to the body of the baby.
The therapeutic apparatus mainly uses halogen lamps, fluorescent lamps or light-emitting diodes as irradiation light sources, and adopts a direct irradiation or direct skin adhesion mode as a therapeutic mode. These approaches do have therapeutic effects, while also having certain drawbacks. The treatment instrument made of the halogen lamp and the fluorescent lamp adopts a direct irradiation mode, so that the evaporation of water in the skin of the infant can be increased due to the heat generated by radiation; the intensity of the bulb is weakened with time, the bulb needs to be replaced frequently, and the photometer is required to measure the light intensity of the bulb before each treatment; the nursing staff has headache and vomit feeling for blue light; the baby must wear the eyeshade and cover the genitals, and can not put on clothes, and is easy to catch a cold; disturbing the normal circulation of the infant in daytime and at night; parents must be isolated from the infant.
In the file of Chinese patent application publication number CN202314978U, application publication date 2012, 07 month 11, named infant icterus blue light treatment blanket, a infant icterus blue light treatment blanket is disclosed, which comprises a photoelectric source shell and an optical fiber treatment blanket, wherein light emitted by the photoelectric source shell sequentially enters a light leakage blanket through an optical cable connector and an optical fiber hose, the light leakage blanket consists of a light transmission layer, a light leakage layer and a light reflection layer, and the light leakage layer is made of optical fibers and textile fine wires in a knitting, weaving or winding braiding mode; the light-discharging blanket is soft and bendable like a textile, and can release light energy on the side of the light-transmitting layer. The blue light treatment blanket has no current, and does not cause a current electromagnetic field; no glass plastic block material and no possibility of the infant being scratched and stabbed; the light leakage blanket is soft, and the direct-sticking skin is similar to dressing, so that anxiety of parents is reduced. However, the blue light treatment blanket is directly powered by mains supply, the mains supply voltage is large, and once a drain electrode is unsafe, potential safety hazards exist; on the other hand, when the blanket is used for wrapping the whole body of the baby, the heat effect is obvious, the local body temperature of the baby is easy to rise and the electrolyte of the body fluid is easy to be disturbed due to the lack of a heat dissipation system, and an argon ion gas laser, a semiconductor laser, a solid laser, an incandescent lamp or a light-emitting diode and the like are adopted as a light source, so that the light needs to be polarized or adjusted, the structure is complex, the cost is high, the service life of the light source is limited, and the use is inconvenient.
Disclosure of Invention
The invention aims to overcome the defects of the background technology, and provides the treatment equipment for controlling the infant phototherapy film by touching the liquid crystal display screen, and the controller is enabled to have the functions of liquid crystal display and touch control so that on-site staff can directly control the controller, thereby avoiding the problems that medical staff and parents cannot control timely and accurately, work is inconvenient and the like.
In order to solve the technical problems, the invention provides the following technical scheme:
The utility model provides a baby phototherapy membrane, includes photoelectric source machine case, blue light conduction module, control module, power module and light guide membrane, and the light that blue light conduction module sent is in proper order through condensing lens and coaxial optic fibre entering into the light guide membrane, blue light conduction module includes radiating module and temperature monitoring sensor, blue light LED light source board, lens briquetting, condensing lens and the condensing lens seat of setting on radiating module, and wherein blue light LED light source board is installed on radiating module's preceding terminal surface, and condensing lens is fixed on the condensing lens seat, and the condensing lens seat passes through the lens briquetting and installs on blue light LED light source board front end; the front end of the coaxial optical fiber is positioned in the light guide film, the tail end of the coaxial optical fiber is positioned in the lower end of the chassis, a handle is arranged at the top end of the chassis, a touch liquid crystal display screen is arranged at the upper end of the chassis, the touch liquid crystal display screen is connected with the control module, and in addition, the power supply module is respectively connected with the blue light conduction module, the touch liquid crystal display screen and the control module.
Further, an optical fiber bushing is arranged at the joint of the tail end of the coaxial optical fiber and the chassis, a cylindrical concave hole is formed in the front end of the condensing lens seat, the rear end of the optical fiber bushing is fixed in the cylindrical concave hole, and the tail end of the coaxial optical fiber is positioned in the optical fiber bushing and connected with the condensing lens.
Further, the number of the condensing lenses is a plurality, and the condensing lenses are distributed on the condensing lens seat in a determinant mode, or in a staggered mode, or in a polygonal mode; or a plurality of condensing lenses are distributed in the middle on the condensing lens seat, and the rest condensing lenses are uniformly and symmetrically arranged on the same circumference; the orthographic projection of the condensing lens on the condensing lens seat is circular or polygonal or regular hexagon.
Further, the power supply module comprises a commercial power-to-direct current module, an LED constant current driving module and a direct current voltage reduction module, and the commercial power-to-direct current module is respectively connected with the LED constant current driving module and the direct current voltage reduction module.
Further, the touch liquid crystal display screen comprises a touch panel and a main control chip, the main control chip is connected with the temperature monitoring sensor, a touch operation area and an information display area are arranged on the surface of the touch panel, the information displayed in the information display area at least comprises time information, temperature information and state information indicating the working state of the equipment, a timing starting switch button and 4 groups of corresponding touch positions are arranged on the touch operation area to add or subtract timing time, the touch positions are divided into an increasing point and a decreasing point up and down, the touch positions are touched for a long time, and the corresponding time is increased or decreased in a larger step unit.
Further, the main control chip comprises a Cortex-M3 processor and an FPGA controller, wherein the Cortex-M3 processor and the FPGA controller are arranged in the case, the Cortex-M3 processor comprises a serial port instruction cache area and an instruction analysis and execution area which are connected, the instruction analysis and execution area is respectively connected with a peripheral control port and a bus communication port, the peripheral control port is connected with an RTC clock arranged on the case, a 4*4 matrix keyboard and an SD card arranged in the case, the bus communication port is connected with the FPGA controller, and the FPGA controller is connected with a touch liquid crystal display; the serial port instruction buffer area is connected with the control module through a receiving data pin RXD and a transmitting data pin TXD respectively.
Further, the Cortex-M3 processor further comprises a USB protocol analysis port and a write NAND controller which are connected, and the USB protocol analysis port is also connected with a USB 2.0 port arranged on the case shell; the FPGA controller comprises an SDRAM controller, a TFT controller and a read NAND controller, wherein the SDRAM controller is connected with an SDRAM memory arranged in a case shell, and the read NAND controller is connected with the write NAND controller through a NAND FLASH memory arranged in the case shell.
Further, the light guide film consists of a matrix material, a shielding layer for blocking liquid and a reflecting layer; the matrix material is made of transparent soft cloth with maximum light transmittance or fabric material suitable for being worn by infants, and is used for protecting tender skin of infants; the shielding layer for blocking the liquid is arranged below the reflecting layer and is a transparent plastic sheet of a substance with softness and buffering property; the reflecting layer is a non-transparent polymer film or dense fabric, and the color of the reflecting layer is black or consistent with the color of a substance absorbing light rays with corresponding wavelengths, so as to prevent blue light from leaking; the light guide film comprises an on-line or off-line temperature monitoring and early warning system, and the light guide film gives a warning when the temperature change of the infant and/or the device is in an unsafe range; the light directing film is assembled from one or more pieces of a flexible folded matrix material and integrated into a complete piece.
Further, the control module is composed of an input unit and an output unit, the input unit comprises a touch operation area of the touch liquid crystal display, a temperature monitoring sensor and a receiving data pin RXD, the output unit comprises an information display area of the touch liquid crystal display, a cooling fan control signal and a transmitting data pin TXD, the temperature monitoring sensor monitors the temperature of a blue light LED light source, and in addition, the control module is provided with an indicator lamp, a control key and a power switch.
Further, the circuit of the control module comprises a singlechip, a voltage-reducing and voltage-stabilizing circuit, a crystal oscillator circuit, a reset circuit and an automatic cold start control circuit, wherein the singlechip is connected with a power supply through the voltage-reducing and voltage-stabilizing circuit; the input end of the automatic cold start control circuit is connected with the temperature monitoring sensor, and the output end of the automatic cold start control circuit is connected with the singlechip; the crystal oscillator circuit and the reset circuit are respectively connected with the point touch operation area and the fiber information display area of the touch liquid crystal display screen, and the control end of the crystal oscillator circuit and the reset circuit is connected with the singlechip.
The infant phototherapy membrane provided by the invention has the advantages that the photoelectric source cabinet comprises all electric and optical active equipment of the equipment, and the optical fiber therapeutic blanket plays roles of optical energy transmission, direct-attached irradiation, irradiation luminous flux feedback and the like; during treatment, the light source does not have stroboscopic phenomenon, and the intensity of the light source is not weakened along with the increase of time; the touch liquid crystal display technology adopting Cortex-M3 and FPGA has the characteristics of high sensitivity and reliability, and a user can quickly adjust up and down single-point pressing, so that the adjustment is more flexible and convenient, the human-computer interaction interface is more humanized, single regulation and control are avoided, and the touch liquid crystal display technology can be perfectly combined in vision and touch sense.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded schematic view of an infant phototherapy membrane;
FIG. 2 is an assembly schematic diagram of the internal structure of an infant phototherapy membrane photovoltaic power cabinet;
FIG. 3 is a schematic diagram of an infant phototherapy membrane photovoltaic power cabinet;
FIG. 4 is a schematic diagram of a control system for an infant phototherapy membrane;
FIG. 5 is a block diagram showing the connection of the internal structure of the main control chip of the phototherapy film for infants;
FIG. 6 is a schematic view of an infant phototherapy film touch panel;
FIG. 7 is a schematic diagram of an infant phototherapy membrane communication circuit;
fig. 8 is a schematic circuit diagram of a main control chip of the phototherapy film for infants.
Detailed Description
The following description of the present invention will be made more fully hereinafter with reference to the accompanying drawings, in which it is shown, however, some, but not all embodiments of the invention are shown. All other embodiments of the invention, which are obvious to those skilled in the art without the exercise of inventive faculty, are intended to be within the scope of the invention.
As shown in fig. 1,2 and 3, an infant phototherapy film comprises a light source case, a blue light conduction module, a control module, a power supply module and a light guide film 9, wherein light emitted by the blue light conduction module sequentially enters the light guide film 9 through a condensing lens 4 and a coaxial optical fiber 8, the blue light conduction module comprises a heat radiation module 2, a temperature monitoring sensor 1, a blue light LED light source plate 10, a lens pressing block 3, a condensing lens 4 and a condensing lens seat 5, the blue light LED light source plate 10 is arranged on the front end face of the heat radiation module 2, the condensing lens 4 is fixed on the condensing lens seat 5, and the condensing lens seat 5 is arranged on the front end of the blue light LED light source plate 10 through the lens pressing block 3; the front end of the coaxial optical fiber 8 is positioned in the light guide film 9, the tail end of the coaxial optical fiber 8 is positioned in the lower end of the chassis, an optical fiber bushing 7 is arranged at the joint of the tail end of the coaxial optical fiber 8 and the chassis, a cylindrical concave hole 6 is arranged at the front end of the condensing lens seat 5, the rear end of the optical fiber bushing 7 is fixed in the cylindrical concave hole 6, and the tail end of the coaxial optical fiber 8 is positioned in the optical fiber bushing 7 and connected with the condensing lens 4; the top of the case is provided with a handle 11, the upper end of the case is provided with a touch liquid crystal display 14, the touch liquid crystal display 14 is connected with the control module, and in addition, the power supply module is respectively connected with the blue light conduction module, the touch liquid crystal display 14 and the control module.
Further, the number of the condensing lenses 4 is several, and the condensing lenses 4 are distributed on the condensing lens seat 5 in a row-column manner, a staggered manner, or a polygonal manner; or a plurality of condensing lenses 4 are distributed on the middle of the condensing lens seat 5, and the rest condensing lenses are uniformly and symmetrically arranged on the same circumference; the orthographic projection of the condensing lens 4 on the condensing lens seat 5 is circular or polygonal or regular hexagon. By adopting the LED lens module with the shape and the structure, a plurality of lenses 4 are combined and integrally formed with the lens seat 5, so that the production cost can be reduced, the space of a lamp is saved, the product is attractive and elegant, and the high-power application is realized; after the LEDs are condensed by the lens module, light rays are almost irradiated in the same light spot range at the same time, which is equivalent to the superposition of a plurality of light spots, the brightness is increased, and the luminous effect is better.
Further, the light guide film consists of a matrix material, a shielding layer for blocking liquid and a reflecting layer; the matrix material is made of transparent soft cloth with maximum light transmittance or fabric material suitable for being worn by infants, and is used for protecting tender skin of infants; the shielding layer for blocking the liquid is arranged below the reflecting layer and is a transparent plastic sheet of a substance with softness and buffering property, and is used for preventing the optical fiber in the light guide film from being interfered by excrement, urine and food; the reflecting layer is a non-transparent polymer film or dense fabric, and the color of the reflecting layer is black or consistent with the color of a substance absorbing light rays with corresponding wavelengths, so as to prevent blue light from leaking; the light guide film comprises an on-line or off-line temperature monitoring and early warning system, and the light guide film gives a warning when the temperature change of the infant and/or the device is in an unsafe range; the light guide film is assembled by a single piece or a plurality of pieces of bendable and foldable matrix materials and is integrated into a complete piece, and the light guide film has the advantages of convenient use, no gap between skin and products, reliable prevention effect and good biocompatibility.
Further, as shown in fig. 6, the touch liquid crystal display 14 includes a touch panel and a main control chip, where the main control chip is connected to the temperature monitoring sensor 1, a touch operation area and an information display area are provided on the surface of the touch panel, the information displayed in the information display area includes at least time information, temperature information and status information indicating a working status of the device, the time information includes a year, a month, a day, a minute, a second and a time minute of a timing time of a current date, and the touch operation area is provided with a timing start switch button and 4 groups of corresponding touch positions to add or subtract the timing time, the touch positions are divided into an increasing point and a decreasing point, the touch positions are touched for a long time, and the corresponding time increases or decreases in a larger step unit.
The touch panel can provide excellent and accurate man-machine interaction, when a worker receives a task, the worker can quickly compare the current date to make a decision, and the time for the infant to be treated is set; the touch operation area can provide complex and various quick operation buttons according to the use situation of a user, and the timing time is accurately and quickly added and subtracted from the upper 4 groups of buttons, so that the time required to be treated can be quickly set; the main control chip is responsible for controlling and processing some main functions such as LED lamp, radiator fan, power, temperature, etc. to share data processing, reduce programmer's later stage a large amount of maintenance work, greatly reduce the risk that the circuit goes wrong.
Further, as shown in fig. 5, the main control chip includes a Cortex-M3 processor and an FPGA controller, where the Cortex-M3 processor and the FPGA controller are disposed in the chassis shell, and the Cortex-M3 processor includes a serial port instruction buffer area and an instruction parsing and executing area, where the serial port instruction buffer area is connected to the control module through a data receiving pin RXD and a data sending pin TXD, respectively; the instruction analysis and execution area is respectively connected with an external control port and a bus communication port, the external control port is connected with an RTC clock, a 4*4 matrix keyboard and an SD card, the RTC clock is arranged on the case shell, the SD card is arranged in the case shell, the bus communication port is connected with an FPGA controller, and the FPGA controller is connected with a touch liquid crystal display screen 14; the Cortex-M3 processor further comprises a USB protocol analysis port and a write NAND controller which are connected, and the USB protocol analysis port is further connected with a USB 2.0 port arranged on the case shell; the FPGA controller comprises an SDRAM controller, a TFT controller and a read NAND controller, wherein the SDRAM controller is connected with an SDRAM memory arranged in a case shell, and the read NAND controller is connected with the write NAND controller through a NAND FLASH memory arranged in the case shell.
The system processor adopts Cortex-M3+ high-speed FPGA dual-core design, the Cortex-M3 mainly performs protocol analysis and USB picture downloading, and the FPGA mainly realizes picture reading and TFT control display of NAND FLASH. The main advantage of selecting the Cortex-M3+FPGA dual-core architecture is that: the FPGA is a programmable logic device, the main frequency is high, the internal instructions are processed in parallel, TFTs similar to 1440 x 900 resolution can be easily driven, and the refresh speed is high; the whole system is powered on, namely running, and can reliably work after 24-7-365 hours of uninterrupted power supply without garbage redundancy files; the core component is an industrial conventional device, the Cortex-M3 is basically in an idle state in a state without instruction receiving, all heavy-load data reading and display refreshing work is independently completed by FPGA pure hardware, and the structural characteristics ensure the robustness and the anti-interference performance of the system to a certain extent. Because the parallel processing mechanism is adopted in the FPGA, NAND FLASH data reading, SDRAM writing and RGB data output are all executed in the same clock beat, and the characteristics of high system picture updating speed, high response time and the like are ensured; and the user host can exit the serial port program after continuously sending a plurality of instructions without waiting in the 4.7K-byte instruction buffer area. The whole process is simple to operate, and the amount of program codes is greatly reduced.
Further, as shown in fig. 4, the power supply module comprises a commercial power-to-direct current module, an LED constant current driving module and a direct current voltage reduction module, and the commercial power-to-direct current module is respectively connected with the LED constant current driving module and the direct current voltage reduction module; the control module is composed of an input unit and an output unit, wherein the input unit comprises a touch operation area of the touch liquid crystal display 14, a temperature monitoring sensor and a receiving data pin RXD, the output unit comprises an information display area of the touch liquid crystal display 14, a cooling fan control signal and a transmitting data pin TXD, the temperature monitoring sensor monitors the temperature of a blue light LED light source, and in addition, the control module is provided with an indicator lamp 12, a control key and a power switch 13.
Further, as shown in fig. 7 and 8, the circuit of the control module comprises a single chip microcomputer, a voltage-reducing and stabilizing circuit, a crystal oscillator circuit, a reset circuit and an automatic cold start control circuit, wherein the single chip microcomputer is connected with a power supply through the voltage-reducing and stabilizing circuit; the input end of the automatic cold start control circuit is connected with the temperature monitoring sensor, and the output end of the automatic cold start control circuit is connected with the singlechip; the crystal oscillator circuit and the reset circuit are respectively connected with the point touch operation area and the fiber information display area of the touch liquid crystal display screen, and the control end of the crystal oscillator circuit and the reset circuit is connected with the singlechip.
The working principle of the invention is as follows: the power switch 13 is turned on, a commercial power-to-direct current module in the photoelectric source case converts 220V alternating current into 24V direct current voltage, the 24V direct current voltage supplies power to the blue LED light source through the LED constant current driving module, the 24V direct current voltage is converted into 12V voltage through the direct current voltage reducing module to supply power to the cooling fan, and the 24V direct current voltage is linearly reduced into 5V voltage through the direct current voltage reducing module to supply power to the control chip.
The user controls the blue light LED light source through the switch and realizes quick and accurate timing setting operation, key signals of the touch liquid crystal display 14 screen point touch operation area are transmitted to the main control chip, the main control chip converts dimming information into PWM control signals and transmits the PWM control signals to the blue light LED light source and carries out corresponding dimming output, the main control chip transmits timing information to an information display area of the touch liquid crystal display screen, the information display area can display corresponding timing time values, the main control chip transmits status information of a switch lamp and switch timing to the indicator lamp 12 to be displayed, and the main control chip controls the LED driving circuit to switch the LED light source, and meanwhile, timing turn-off operation can be carried out.
The main control chip reads the temperature value of the LED light source through the temperature sensor, judges whether the blue LED light source is overheated, if the LED light source is overheated, the main control chip transmits corresponding control signals to the cooling fan to drive the cooling fan to timely dissipate heat, and meanwhile corresponding state information is displayed through the indicator lamp 12 and the blue LED light source is turned off.
In summary, the invention has the beneficial effects that the photoelectric source cabinet comprises all the electric and optical active equipment of the equipment, and the optical fiber therapeutic blanket plays roles of optical energy transmission, direct-attached irradiation, irradiation luminous flux feedback and the like; the device can carry out body omnidirectional blue light irradiation treatment on a newborn infant by using one blue light emitting source, has good treatment effect, can realize the treatment purpose by using only one blue light emitting source, and is more energy-saving compared with the existing blue light treatment equipment; during treatment, the light source does not have stroboscopic phenomenon, and the intensity of the light source is not weakened along with the increase of time; the touch liquid crystal display technology of Cortex-M3 and FPGA is adopted, so that the touch liquid crystal display technology has the characteristics of high sensitivity and reliability, a user can perform up-down single-point press rapid adjustment, the adjustment is more flexible and convenient, the human-computer interaction interface is more humanized, single adjustment and control are avoided, and the touch screen can be perfectly combined in vision and touch sense; the external AC-DC power supply is converted into a safe voltage and then is input into the light conduction module for power supply, and the phototherapy film is only required to be wrapped on an operated infant when the treatment is applicable, and the operation of touching the liquid crystal display screen to control the blue light conduction is only required.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (8)
1. The infant phototherapy film comprises a photoelectric source case, a blue light conduction module, a control module, a power supply module and a light guide film, wherein light emitted by the blue light conduction module sequentially enters the light guide film through a condensing lens and a coaxial optical fiber; the front end of the coaxial optical fiber is positioned in the light guide film, the tail end of the coaxial optical fiber is positioned in the lower end of the chassis, a handle is arranged at the top end of the chassis, a touch liquid crystal display screen is arranged at the upper end of the chassis and connected with the control module, in addition, the power supply module is respectively connected with the blue light conduction module, the touch liquid crystal display screen and the control module, a plurality of condensing lenses are distributed on the condensing lens seat in a determinant mode, or in a staggered mode, or in a polygonal mode; or a plurality of condensing lenses are distributed in the middle on the condensing lens seat, and the rest condensing lenses are uniformly and symmetrically arranged on the same circumference; orthographic projection of the condensing lens on the condensing lens seat is circular or polygonal or regular hexagon; the light guide film consists of a matrix material, a shielding layer for blocking liquid and a reflecting layer; the matrix material is made of transparent soft cloth with maximum light transmittance or fabric material suitable for being worn by infants; the shielding layer for blocking the liquid is arranged below the reflecting layer and is a transparent plastic sheet of a substance with softness and buffering property; the reflecting layer is a non-transparent polymer film or dense fabric, and the color of the reflecting layer is black or consistent with the color of a substance absorbing light rays with corresponding wavelengths; the light guide film comprises an on-line or off-line temperature monitoring and early warning system, and is assembled and integrated into a complete piece by one or more pieces of bendable and foldable matrix materials.
2. The infant phototherapy membrane according to claim 1, wherein an optical fiber bushing is arranged at a connection part between the tail end of the coaxial optical fiber and the chassis, a cylindrical concave hole is arranged at the front end of the condensing lens seat, the rear end of the optical fiber bushing is fixed in the cylindrical concave hole, and the tail end of the coaxial optical fiber is positioned in the optical fiber bushing and connected with the condensing lens.
3. The infant phototherapy film according to claim 1, wherein the power supply module comprises a commercial power-to-direct current module, an LED constant current driving module and a direct current voltage reduction module, and the commercial power-to-direct current module is respectively connected with the LED constant current driving module and the direct current voltage reduction module.
4. The infant phototherapy film according to claim 1, wherein the touch liquid crystal display screen comprises a touch panel and a main control chip, the main control chip is connected with the temperature monitoring sensor, a touch operation area and an information display area are arranged on the surface of the touch panel, the information displayed in the information display area at least comprises time information, temperature information and state information indicating the working state of the equipment, a timing start switch button and 4 groups of corresponding touch positions are arranged on the touch operation area to add and subtract timing time, and the touch positions are divided into an increasing point and a decreasing point.
5. The infant phototherapy film according to claim 4, wherein the main control chip comprises a Cortex-M3 processor and an FPGA controller, the Cortex-M3 processor and the FPGA controller are arranged in a case, the Cortex-M3 processor comprises a serial port instruction cache area and an instruction analysis and execution area which are connected, the instruction analysis and execution area is respectively connected with a peripheral control port and a bus communication port, the peripheral control port is connected with an RTC clock arranged on the case, a 4*4 matrix keyboard and an SD card arranged in the case, the bus communication port is connected with the FPGA controller, and the FPGA controller is connected with a touch liquid crystal display; the serial port instruction buffer area is connected with the control module through a receiving data pin RXD and a transmitting data pin TXD respectively.
6. The infant phototherapy membrane of claim 5, wherein the Cortex-M3 processor further comprises a USB protocol parsing port and a write NAND controller connected, and the USB protocol parsing port is further connected with a USB 2.0 port disposed on the chassis housing; the FPGA controller comprises an SDRAM controller, a TFT controller and a read NAND controller, wherein the SDRAM controller is connected with an SDRAM memory arranged in a case shell, and the read NAND controller is connected with the write NAND controller through a NAND FLASH memory arranged in the case shell.
7. The infant phototherapy film according to claim 5, wherein the control module is composed of an input unit including a touch operation area of the touch liquid crystal display, a temperature monitoring sensor and the reception data pin RXD, and an output unit including an information display area of the touch liquid crystal display, a cooling fan control signal and the transmission data pin TXD, the temperature monitoring sensor monitoring the temperature of the blue LED light source, and further, the control module is provided with an indication lamp, a control key, a power switch.
8. The infant phototherapy membrane according to claim 7, wherein the circuit of the control module comprises a single-chip microcomputer, a voltage-reducing and stabilizing circuit, a crystal oscillator circuit, a reset circuit and an automatic cold start control circuit, and the single-chip microcomputer is connected with a power supply through the voltage-reducing and stabilizing circuit; the input end of the automatic cold start control circuit is connected with the temperature monitoring sensor, and the output end of the automatic cold start control circuit is connected with the singlechip; the crystal oscillator circuit and the reset circuit are respectively connected with the point touch operation area and the fiber information display area of the touch liquid crystal display screen, and the control end of the crystal oscillator circuit and the reset circuit is connected with the singlechip.
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