WO2022036518A1 - 一种便携式红外 led 治疗仪及治疗设备 - Google Patents

一种便携式红外 led 治疗仪及治疗设备 Download PDF

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Publication number
WO2022036518A1
WO2022036518A1 PCT/CN2020/109589 CN2020109589W WO2022036518A1 WO 2022036518 A1 WO2022036518 A1 WO 2022036518A1 CN 2020109589 W CN2020109589 W CN 2020109589W WO 2022036518 A1 WO2022036518 A1 WO 2022036518A1
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Prior art keywords
circuit
therapeutic apparatus
temperature
infrared
circuit board
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PCT/CN2020/109589
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English (en)
French (fr)
Inventor
刘衍志
覃葵
丘国鸿
余文能
李恒
郑思宇
Original Assignee
深圳市鑫君特智能医疗器械有限公司
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Priority to PCT/CN2020/109589 priority Critical patent/WO2022036518A1/zh
Publication of WO2022036518A1 publication Critical patent/WO2022036518A1/zh

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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

Definitions

  • the invention relates to the field of medical devices, in particular to a portable infrared LED therapeutic apparatus and therapeutic equipment.
  • Phototherapy is the use of artificial light sources or natural light sources to prevent and treat diseases, and it is one of the common methods of physical therapy.
  • Infrared frequency and energy are low, and can only penetrate the gap between atoms and molecules, but cannot penetrate into the interior of atoms and molecules.
  • Through infrared radiation the vibration of atoms and molecules is accelerated and the distance is increased, that is, the thermal motion energy is increased, and matter will Physical effects such as heating, melting, and vaporization occur, while the atomic and molecular structure of matter does not change.
  • infrared In addition to the thermal effect, infrared also has a penetrating effect.
  • the special infrared LED used for biomedicine has a wavelength of 880nm, which belongs to near-infrared rays and can penetrate human tissues up to 10 mm.
  • the infrared light can make endothelial cells and hemoglobin in blood cells release nitric oxide.
  • Nitric oxide is absorbed by body cells, and has physiological and therapeutic effects such as promoting telangiectasia, improving local blood circulation, relieving muscle spasm, and relieving pain.
  • Infrared rays can enhance the phagocytic ability of phagocytes, improve human immunity, promote the absorption and subsidence of chronic inflammation, eliminate swelling and stagnation, and also have a good effect on acute and chronic joint diseases; infrared rays play an important role in improving tissue nutrition, not only can promote fiber
  • the regeneration of cells is also of great significance to the regeneration of fibroblasts, so it has a good promotion effect on wound healing; infrared rays can reduce inflammation, relieve pain, reduce postoperative adhesion, promote scar softening, and reduce scar contracture;
  • infrared radiation can improve skin Oxygen supply, drying the skin, also has a good therapeutic effect on bedsores and frostbite; infrared radiation can also dilate blood vessels, reduce nerve excitability, relieve or treat post-traumatic neuralgia, herpes zoster, diabetic ED , Prostatitis, etc.
  • Traditional phototherapy equipment generally adopts the form of an external lamp, using a halogen lamp as the light source, and setting the radiation intensity by adjusting the power of the light source and the distance between the light source and the affected area.
  • the light density is uneven, some products have a wide wavelength range, and also emit harmful ultraviolet components, and there are obvious side effects: patients often feel hot during treatment, need a lot of water, and the light intensity is too strong or the irradiation time is too long.
  • the equipment is mostly dedicated to medical institutions, the operation is complicated, the volume and weight are large, and it is inconvenient to carry; maintenance is difficult and the maintenance cost is high; the treatment form is relatively simple, the contact temperature is uncontrollable, and the patient experience is not good.
  • the purpose of the present invention is to provide a portable infrared LED therapeutic apparatus, which solves the problems of inconvenient portability of the existing phototherapy equipment and poor patient experience.
  • the present invention adopts the following technical solutions:
  • a portable infrared LED therapeutic apparatus includes a casing and an internal circuit board; an internal circuit is arranged on the internal circuit board; the portable infrared LED therapeutic apparatus is a palm rest type device; Several infrared LEDs installed on the internal circuit board are arranged in the transmission window of the body; the internal circuit board controls the several infrared LEDs to generate infrared light, and outputs infrared light through the transmission window for infrared photothermal therapy.
  • the therapeutic apparatus is provided with a temperature sensor and is connected to the internal circuit, and the temperature sensor is arranged at the transmission window and/or inside the transmission window, and is used to measure the temperature inside the transmission window and/or the transmission window;
  • the internal circuit realizes automatic temperature control;
  • the internal circuit is provided with an over-temperature protection circuit, and when the temperature inside the transmission window and/or the transmission window exceeds the set value, the internal circuit controls the power input to be turned off;
  • the internal circuit controls the Several infrared LEDs select high-energy or low-energy output;
  • the internal circuit is provided with a motor drive circuit, which connects and drives the vibration motor to realize vibration massage;
  • the internal circuit board is also provided with several red LEDs; the several The red LEDs form an auxiliary red LED array and are located inside the transmission window of the housing.
  • the internal circuit includes an infrared LED drive signal circuit, which connects and drives the plurality of infrared LEDs;
  • the infrared LED drive signal circuit includes the temperature sensor and the PWM pulse width modulation circuit to realize automatic temperature control, so that the The irradiation surface of the therapeutic apparatus achieves the effect of approximately constant temperature; there are two temperature sensors, and the parallel combination of them is controlled by signals to realize the switching of high and low energy output;
  • the over-temperature protection circuit includes the temperature sensor and the hysteresis comparator, The power input is turned off when the temperature exceeds the set value through a temperature sensor and a hysteresis comparator;
  • the temperature sensor includes two temperature resistors NTC;
  • the motor drive circuit includes a sawtooth wave generation and a pulse width modulation circuit to provide a predetermined voltage for the vibration motor and intermittent drive.
  • the PWM pulse width modulation circuit generates a sawtooth wave, which is connected to the negative input of the voltage comparator, and the level signal generated by the temperature resistance NTC circuit is connected to the positive input of the voltage comparator; as the temperature increases, the resistance value of the NTC resistance decreases.
  • the level signal decreases accordingly, and the duty cycle of the PWM signal output by the comparator also decreases, thereby achieving negative temperature feedback;
  • the drive current of the infrared LED drive signal circuit changes with the temperature: the temperature increases, the current decreases, and the temperature decreases , the current increases, so that the irradiation surface of the therapeutic apparatus achieves an effect of approximately constant temperature; as the temperature increases, the level of the NTC resistance decreases; when the internal circuit controls the several infrared LEDs to select high-energy output, the basic resistance value of the NTC It is 10K; when the internal circuit controls the several infrared LEDs to select low-energy output, the basic resistance of the NTC resistor is 10K and 22K in parallel; when high-energy output is selected, the duty cycle of the PWM signal is greater than that of low-energy output.
  • the drive current of the infrared LED drive signal circuit is also larger, so the temperature generated is also higher; the working temperature of the irradiation surface of the therapeutic apparatus is constant at 40 ⁇
  • the several infrared LEDs form an array to achieve uniform output of light energy; the several infrared LEDs are dozens of low-power, small-package infrared LEDs; the power input of the therapeutic apparatus is 12V direct current ; the transmission window is an oval window of 49*55mm; the infrared therapeutic apparatus is a palm rest device of about 110*75*25mm; the wavelength of the red LED is 640nm; the wavelength of the infrared LED is 880nm, The shape of the therapeutic apparatus is similar to the palm rest of a mouse.
  • a thermally conductive silica gel pad is also arranged in the casing to adjust the temperature balance of the inner body of the casing; honeycomb holes are also arranged on the casing for heat dissipation, so as to realize the temperature balance in the casing.
  • the internal circuit includes a control signal input; the control signal input includes a power input signal and GND, an auxiliary function selection signal and a high and low energy selection signal; the power input signal is used to input power to the therapeutic apparatus;
  • the power input signal is connected to the several infrared LEDs for inputting direct current;
  • the auxiliary function selection signal is connected to the motor drive circuit and/or several red LEDs for selecting whether to start the vibration motor and the red LEDs;
  • the power supply The input signal is electrically connected to the red LED;
  • the high and low energy selection signal is connected to the plurality of infrared LEDs to achieve high-energy or low-energy infrared output;
  • the internal circuit includes an LED circuit and a control circuit that are electrically connected to each other;
  • the LED circuit is integrated in the LED circuit board, and the control circuit is integrated in the control circuit board;
  • the LED circuit board and the control circuit board are two circuit boards that are electrically connected to each other or integrated in the same circuit board;
  • control circuit includes control signal input and control signal output, an over-temperature protection circuit, and also includes the motor drive circuit and the vibration motor connected thereto;
  • the LED circuit includes: a control signal input, an infrared LED drive signal circuit and several infrared LEDs; wherein, the control signal input of the LED circuit is connected to the control signal output of the control circuit; the LED circuit also includes the plurality of red LEDs;
  • the control signal input of the internal circuit includes the control signal The control signal input of the circuit and the control signal input of the LED circuit connected with the control signal output; the control signal input of the internal circuit is connected with the external signal cable.
  • the casing comprises an upper casing and a lower casing that are fastened together; a waterproof rubber strip is arranged on the edge between the upper casing and the lower casing; screws are formed between the upper casing, the lower casing, the LED circuit board, and the control circuit board. Further tightening; a waterproof gasket is arranged on the screw, and the screw hole is waterproof and sealed by a screw hole rubber plug; a working indicator light is arranged on the casing, and the working indicator light is electrically connected with the internal circuit.
  • control signal input is electrically connected to a processor and a power input circuit, and the control signal is generated by the processor.
  • the present invention also provides a portable infrared LED therapeutic device, including the portable infrared LED therapeutic device as described above, and a function control circuit, which is connected to the internal circuit of the therapeutic device to control the operation of the therapeutic device.
  • the function control circuit includes one or more processors; the function control circuit includes a clock, an indicator light, a function key, a detection module, and a programming interface connected to the processor; writing through the programming interface Execute the program; the processor controls the clock to generate the usage mode of the therapeutic apparatus; the function control circuit is set in an independent function controller, or is set inside the therapeutic apparatus, and is integrated with the internal circuit in the same or different a circuit board; the processor is connected with a control signal circuit to generate corresponding control signals and output them to the internal circuit of the therapeutic apparatus.
  • the indicator lights include a mode indicator light, an auxiliary function indicator light, and a power/work indicator light;
  • the function keys include a MODE mode key, an AUX auxiliary function selection key, and a TREAT start key; the function keys and The indicator light is arranged on the human-computer interaction interface; the human-computer interaction interface is arranged on the panel of the function controller.
  • the function control circuit is connected with a power interface for accessing the power supply;
  • the control signal circuit includes a power input circuit, a high and low energy output control circuit, and an auxiliary function control circuit; a high and low energy output control circuit, and an auxiliary function output control circuit
  • the circuit and the power input circuit are connected to the signal output terminal; the signal output terminal is connected to the control signal input of the internal circuit of the therapeutic apparatus, or the signal output terminal is connected to the control signal input of the internal circuit of the therapeutic apparatus through an external signal cable
  • the power input circuit generates power output and grounding signals, the processor is connected to the high and low energy output control circuit to generate high and low energy selection signals, and the processor is connected to the auxiliary function control circuit to generate auxiliary function selection signals;
  • the current protection circuit is connected with the processor; the power input circuit is connected with a voltage detection module, and the voltage detection module detects the voltage value input by the power input circuit through the sampling of the voltage dividing resistor and the window comparator circuit; the power input circuit is connected with the power interface
  • control signal circuit and the signal output terminal are arranged in the IO circuit; the IO circuit further includes the overvoltage and overcurrent protection circuit connected to the power input circuit; the IO circuit includes a power supply input circuit connected to the circuit.
  • the voltage detection module; the function control circuit is arranged on the function control circuit board, and the IO circuit is arranged on the IO circuit board; the function control circuit board and the IO circuit board are arranged on two independent circuit boards or a circuit board; the power interface is set on the IO circuit board.
  • the power input circuit inputs 12V direct current; the power input circuit inputs 12V direct current, and after the voltage overcurrent protection circuit, the voltage regulator is converted to 5V to supply power to the processor; the voltage detection module divides the voltage by The resistance sampling and the window comparator circuit detect whether the input voltage of the power input circuit is 9 ⁇ 13V; the IO circuit board and the function control circuit board are arranged inside the function controller; the portable infrared LED treatment device also includes a power adapter, and the The power adapter is connected with the power interface to connect to the external power supply.
  • the portable infrared LED therapeutic apparatus of the invention has the advantages of small size, portable, flexible, convenient and simple use, low cost, diversified treatment forms, controllable contact temperature, and better patient experience.
  • FIG. 1 is a schematic diagram of a portable infrared LED therapeutic device according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a functional controller of a portable infrared LED therapeutic apparatus according to an embodiment of the present invention.
  • FIG 3 is an exploded view of the functional controller of the portable infrared LED therapeutic apparatus according to the embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a functional controller MPU circuit according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of an IO circuit of a functional controller according to an embodiment of the present invention.
  • FIG. 6 is a block diagram of a function control circuit according to an embodiment of the present invention.
  • Fig. 7 is a perspective view of a portable infrared LED therapeutic apparatus according to an embodiment of the present invention, wherein Figs (a) and (b) are from different perspectives.
  • FIG. 8 is a reference diagram of the use state of the portable infrared LED therapeutic apparatus according to an embodiment of the present invention, wherein the diagrams (a) to (e) are reference diagrams of different usage scenarios.
  • FIG. 9 is an exploded view of the portable infrared LED therapeutic apparatus according to the embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a control circuit of a portable infrared LED therapeutic apparatus according to an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of an LED circuit of a portable infrared LED therapeutic apparatus according to an embodiment of the present invention.
  • FIG. 12 is a block diagram of the control circuit of the portable infrared LED therapeutic apparatus according to the embodiment of the present invention.
  • FIG. 13 is a block diagram of an LED circuit of a portable infrared LED therapeutic apparatus according to an embodiment of the present invention.
  • FIG. 14 is a schematic diagram of the automatic temperature adjustment of the PWM pulse width of the portable infrared LED therapeutic apparatus according to the embodiment of the present invention.
  • 15 is a level curve diagram of a temperature sensor of a portable infrared LED therapeutic apparatus according to an embodiment of the present invention.
  • a preferred embodiment of the present invention provides a medical device for treating diseases by utilizing infrared light radiation energy.
  • the device has an irradiation window composed of a plurality of 880 wavelength infrared emitting LEDs, which can accurately touch the patient's affected area in a small area.
  • Phototherapy this device has the functions of automatic temperature control, over-temperature protection, and micro-vibration massage. It is small in size, easy to carry, and easy to use.
  • High radiation density infrared light irradiation and thermal therapy can relieve pain caused by muscle and soft tissue injury, tenosynovitis and fasciitis, as well as reduce postoperative pain, eliminate inflammation and swelling, and speed up wound healing.
  • the portable infrared LED therapeutic apparatus of the present invention is a compact therapeutic device.
  • an oval transparent output window of about 49*55mm can be designed on the therapeutic surface, and dozens of low-power and small-package infrared LEDs are used inside to form an array.
  • the surface of the output window also has a heating effect similar to a constant temperature, and the interior has the functions of automatic temperature control, over-temperature protection, waterproof and dustproof, and vibration massage, so that patients can obtain multiple functions of phototherapy, heat therapy and massage.
  • the portable infrared LED therapeutic apparatus of the present invention is suitable for light therapy on various parts such as wrist, sole, waist and temple. It can also be used in a hollow seat cushion.
  • the portable infrared LED therapeutic apparatus mainly includes a power adapter 1 , a function controller 2 and an infrared LED therapeutic apparatus 3 .
  • the power adapter 1 is used to connect to the power supply, which may be connected to the commercial power supply. In some embodiments, the power adapter can also directly wire the power supply.
  • the power adapter is an AC/DC power adapter, and the output plug of the power adapter is inserted into the inner socket of the function controller to supply power to the function controller 2 and the therapeutic apparatus 3 .
  • the function controller 2 is connected with the infrared LED therapeutic apparatus 3 through a cable 5 .
  • the cable 5 can be provided with an interface at both ends or at one end, and is connected with the function controller 2 or the infrared LED therapeutic apparatus 3 through the interface, or one end is fixedly connected.
  • the cable 5 adopts a 4-core (not limited to 4-core) input cable to connect the function controller 2 with the infrared LED therapeutic apparatus 3 to realize signal transmission (including control signals or current source signals).
  • the infrared LED therapeutic apparatus 3 is similar in shape to the palm rest of a mouse, and can generate light and heat infrared rays.
  • the power adapter 1 can use commercially available products, for example, it can be required to meet the maximum output of 12V/1A, the output voltage accuracy is ⁇ 3%, the load regulation rate is ⁇ 3%, and the ripple is less than 100mVp-p.
  • the function controller 2 of the present embodiment is configured as a box-like structure externally connected to the infrared LED therapeutic apparatus 3, including a shell formed by the upper and lower shells 21, 24 being buckled with each other, and a function of installing inside the shell.
  • the control circuit board 22 , the IO (input and output) circuit board 23 and the signal output terminal 24 are also provided with a power interface (socket).
  • the function control circuit board 22 and the IO circuit board 23 are connected by an inter-board connector to form the main board 20 inside the function controller. In other embodiments, a common PCB board can also be set.
  • the signal output terminal 24 is disposed on or connected to the IO circuit board 23 for connection with the infrared LED therapeutic apparatus 3 to transmit signals (including current signals or control signals, etc.).
  • Direct current is connected to (or converted into) through the power interface.
  • 12V direct current is connected.
  • the shell is provided with a human-computer interaction interface 26, which may be a touch screen, a display screen, a key panel, and the like.
  • the display or operation is performed through the human-computer interaction interface 26.
  • the indicator light 223 and the operation function key 224 are displayed through the human-computer interaction interface 26.
  • the indicator light 223 and the function key 224 are arranged on the main board 20 (specifically, the function control circuit). board 22), displayed or operated through the human-computer interface 26.
  • the indicator light 223 includes a mode indicator light 2231, an auxiliary function indicator light 2232, and a power/work indicator light 2233;
  • the indicator lights are used to indicate the corresponding working status, and the function keys are used to select or set the corresponding functions.
  • the function control circuit board 22 of the function controller is provided with 3 (not limited to 3) function keys and 5 (not limited to 5) indicator lights.
  • the function control circuit of the function controller 2 includes: one or more processors 220 and a clock 222 connected to the processor 220, an indicator light 223 (including a mode indicator light 2231, an auxiliary function indicator light 2232 , power/work indicator light 2233), function keys 224 (MODE key 2241, AUX auxiliary function selection key 2242, TREAT start key 2243), detection module 225, programming interface 221.
  • the processor 220 may be a microprocessor (MPU) with built-in firmware (firmware), the firmware program is downloaded through an external computer and a programmer, and an execution program is loaded into the program interface 221 .
  • the built-in microprocessor (MPU) and clock 222 of the function controller can set the usage mode of the infrared LED therapeutic apparatus 3 through the MODE key of the man-machine interface 26, for example:
  • Mode III 20 minutes of high energy therapy.
  • the auxiliary function selection key 2242 is used to operate to select whether to start red light output or vibration massage; press the TREAT start key 2243 to start the treatment, and automatically close after the timer reaches the set time. output.
  • the function controller is also provided with an IO circuit connected to the function control circuit, specifically including a power input circuit 235, an overvoltage and overcurrent protection circuit 231 electrically connected to the power input circuit 235, a voltage detection module 232, and a high and low energy output control circuit 233 , an auxiliary function control circuit 234 , and a signal output terminal 236 .
  • the high and low energy output control circuit 233 , the auxiliary function output control circuit 234 , and the power input circuit 235 are connected to the signal output end 236 , and the signal output end 236 is connected to control the infrared LED therapeutic apparatus 3 through a 4-core cable.
  • the power input circuit 235 is connected to the power interface for accessing the power.
  • these modules are arranged on the IO circuit board 23 .
  • the power input circuit 235 , the overvoltage and overcurrent protection circuit 231 , the power supply voltage detection circuit 232 , the high and low energy output control circuit 233 , and the auxiliary function output control circuit 234 are electrically connected to the processor 220 and can be connected through an inter-board connector.
  • the power input circuit 235 inputs 12V DC, and after the voltage overcurrent protection circuit 231, the voltage regulator is converted to 5V to supply power to the chip (processor 220); the voltage detection module 232 detects 12V (power Input circuit 235) Whether the input voltage is 9 ⁇ 13V.
  • the four control signal output terminals 236 are respectively 12V power output and grounding, high and low energy selection signal output, and auxiliary function selection signal output.
  • 12V DC is input to the function controller 2 through the power input circuit 235, and the function controller 2 has built-in overcurrent protection, overvoltage protection and power supply voltage monitoring (the infrared therapy device cannot be started if the voltage exceeds the set value), and then the function controller 2 has built-in overcurrent protection, overvoltage protection and power supply voltage monitoring.
  • the 4-core cable is connected to control the infrared LED therapeutic apparatus 3. In addition to the positive and negative power supply, there are two control lines, one for high and low energy control, and the other for auxiliary function control.
  • the function controller 2 may also be disposed on the infrared LED therapeutic apparatus 3 , but the volume of the infrared LED therapeutic apparatus 3 will be increased.
  • the infrared LED therapeutic apparatus 3 of the present invention is a palm rest device, such as a palm rest device of about 110*75*25mm, including a plastic (such as polycarbonate PC) shell, an interior with Control circuit 30 with 4-conductor cable 5 and dedicated plug.
  • the therapeutic apparatus 3 has an elliptical transmission window 31 of, for example, 49*55, which can output infrared light (880 nm) and red light (640 nm).
  • the infrared LED therapeutic apparatus 3 realizes the over-temperature protection function to prevent the therapeutic apparatus 3 from overheating in an environment with poor heat dissipation.
  • the infrared LED therapeutic apparatus 3 has a vibration motor and a timing drive circuit, and the start and stop are controlled by an external signal cable.
  • the infrared therapeutic apparatus of the present invention is simple to maintain, waterproof and dustproof, can withstand sweat and dirt, and can be cleaned with water or neutral washing liquid.
  • the specific structure of the infrared LED therapeutic apparatus 3 includes: upper and lower casings 33 and 34 are fastened together to form a casing, and an LED circuit board 35 and a control circuit board 30 installed inside the casing.
  • the LED circuit board 35 and the control circuit board 30 are electrically connected through an inter-board connector or a wire, and the LED circuit board 35 can be fixed to the housing by screws 14 .
  • the transmission window 31 is disposed on the upper casing 33
  • the LED circuit board 35 is located in the transmission window 31 .
  • the control circuit board 30 is fixed to the LED circuit board 35 through screws 8 , and a washer 9 is sleeved on the screws 8 .
  • a waterproof rubber strip 4.5 is sandwiched between the edges of the upper and lower shells.
  • a thermally conductive silicone pad 7 is also arranged in the casing to adjust the temperature balance in the casing.
  • Heat dissipation holes may be provided on the lower shell, for example, honeycomb holes are provided in the central circular area for heat dissipation to achieve temperature balance in the casing, and a waterproof rubber ring 10 is provided around the opening area.
  • the upper and lower casings 33 and 34 can be further fixed by screws 12, and waterproof gaskets are provided on the screws. All screw holes may be further provided with screw hole rubber plugs 13 for waterproofing.
  • the control signal input includes a power input signal 303 and GND, an auxiliary function selection signal 302 and a high and low energy selection signal 301 .
  • Input 4 control signals from the function controller 2 through a 4-core cable 5 and a special plug wherein the power input signal 303 can be 12V DC; the auxiliary function selection signal 302 is used to select whether to start the vibration motor and/or 12 visible red lights LED; H_L is the high and low energy selection signal 301 used to select the high energy output or the low energy output of the infrared LED to drive the corresponding infrared LED and adjust the temperature sensor.
  • Over-temperature protection circuit 305 is used for over-temperature protection, through the temperature resistance NTC on the circuit board 37 and a hysteresis comparator realizes that the 12V power input is turned off when the phototherapy temperature exceeds the set value.
  • the motor driver 304 is a 3V vibration motor through a sawtooth wave generation and a pulse width modulation circuit to provide a discontinuous drive of about 0.5 Hz.
  • the LED circuit integrated on the LED circuit board 35 of the therapeutic apparatus includes: control signal input, an infrared LED driving signal circuit with automatic temperature adjustment, and an infrared LED array.
  • the control signal input circuit includes 4 control information (but not limited to 4), specifically including the power input signal 353 (12V DC and GND), the AUX auxiliary function selection signal 352 (used to select whether to activate the 12 visible red Light LED or vibration motor), high and low energy selection signal 351.
  • the input signal corresponds to driving the corresponding LED array to work.
  • Two temperature resistors NTC (thermistor or temperature sensor) 37 and PWM pulse width modulation circuit 38 constitute an infrared LED driving signal for automatic temperature adjustment, which is electrically connected to the infrared LED and selects the corresponding light source to work.
  • the power input signal 353 is electrically connected to the infrared LED for power supply.
  • the infrared LEDs are set as LED arrays 40 ⁇ 42, such as 11*7 infrared LED arrays, which are composed of LED lamp beads with low power and small package structure.
  • the function controller 2 controls the corresponding LED light source to work, and specifically controls the infrared LED to output high energy or low energy through the high and low energy selection signal.
  • the LED lamp further includes an auxiliary red LED 39.
  • the auxiliary red light LED 39 is an arrangement of 12 auxiliary red light LEDs in series/parallel, and whether to start the vibration motor or whether to start the 12 visible red light LEDs to work is selected through the auxiliary function.
  • the sawtooth wave generating circuit namely the PWM pulse width modulation circuit 38, generates a sawtooth wave, which is connected to the negative input of the voltage comparator, and the level signal generated by the temperature resistance NTC circuit 37 is connected to the positive input of the voltage comparator.
  • the comparator When the temperature is 1 , the comparator outputs PWM signal 1, and the duty ratio is wide.
  • the driving current of the infrared LED array changes with the temperature, the temperature increases, the current decreases, the temperature decreases, and the current increases, so that the irradiation surface of the therapeutic apparatus achieves an approximate constant temperature effect.
  • the level signal NTC_LEVEL generated by the temperature sensor circuit 37 decreases as the temperature increases (0 to 85 degrees Celsius in the figure); the H_L signal in the circuit controls the basic resistance of the NTC (25°C). Resistance value), when H high energy is selected, the basic resistance value of NTC is 10K, and the level change is curve 1 in the figure. When L low energy is selected, the basic resistance value of NTC is 10K and 22K in parallel, and the level change is curve 2 in the figure , it can be seen that when H high energy is selected, the duty cycle of the PWM signal is greater than that when L is low energy, and the drive current of the infrared LED is also larger, so the temperature generated is also higher.
  • control circuit board 30 and the LED circuit board 35 of the infrared LED therapeutic apparatus 3 can be arranged on the same PCB board.
  • the infrared LED therapeutic apparatus 3 of the present invention can also use a built-in battery (such as a rechargeable battery) as a working power source.
  • a built-in battery such as a rechargeable battery
  • the constant temperature effect of the therapeutic apparatus can be achieved under most conditions, such as exposure to the air at normal temperature, or the therapeutic surface is attached to the human skin at normal temperature, and the therapeutic apparatus achieves temperature balance through external heat exchange and temperature feedback adjustment.
  • the temperature of the treatment surface is constant at 40 ⁇ 45 degrees Celsius (the temperature of H high energy is about 2 degrees Celsius higher than that of L low energy), which can meet the needs of daily hot compress function, but under extreme conditions, the temperature adjustment function may fail: in an environment where heat cannot be dissipated For example, when it is put into clothes or bedding, the temperature feedback will be out of balance, and the temperature of the casing will rise all the time. Therefore, a temperature protection circuit is designed on the control board. Celsius), turn off the output of the infrared therapy device to achieve over-temperature protection.
  • the portable infrared LED therapeutic apparatus 2 of the embodiment of the present invention improves the problems of the existing phototherapy equipment, and designs a compact therapeutic device. Compared with other products and equipment, it has the following advantages: small size, light weight, low Power consumption, easy to carry and use, easy to operate, suitable for personal care use;
  • the phototherapy window is an oval window of 49*55mm, (not limited to) 77 880nm infrared light-emitting diodes form an array to achieve uniform output of light energy, a single wavelength, Safe and reliable, strong penetrating power;
  • the surface of the output window has a constant temperature heating effect, with automatic temperature control, over-temperature protection, waterproof and dustproof, vibration massage functions, so that patients can get multiple effects of phototherapy, hot compress and massage, and patients feel Comfortable.
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection, an electrical connection or a connection that can transmit data; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction of two elements relation.
  • installed may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection, an electrical connection or a connection that can transmit data; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction of two elements relation.

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Abstract

一种便携式红外LED治疗仪（3）及设备。其中，便携式红外LED治疗仪（3）包括壳体以及内部电路板；内部电路板上设置内部电路；治疗仪（3）为掌托式设备；壳体上设置有作为照射面的透射窗口，壳体的透射窗口内设置有安装于内部电路板上的若干个红外LED；内部电路板控制若干个红外LED产生红外光，通过透射窗口输出红外光以进行红外光热治疗。便携式红外LED治疗设备还包括功能控制电路，控制治疗仪（3）的工作。便携式红外LED治疗仪（3）体积小巧、携带方便、使用灵活、接触温度可控，患者体验较佳。

Description

一种便携式红外LED治疗仪及治疗设备 技术领域
本发明涉及医疗装置领域，尤其是一种便携式红外LED治疗仪及治疗设备。
 背景技术
光疗是利用人工光源或自然光源防治疾病的方法，是物理治疗常用方法之一。红外线频率和能量较低，只能穿透原子分子的间隙，而不能穿透到原子、分子的内部，通过红外线照射，原子、分子的震动加快、间距拉大，即增加热运动能量，物质会发生升温、融化、汽化等物理作用，而物质原子、分子结构不发生变化，红外线的这些特性，使红外线理疗成为安全且具有多样性的一种理疗方法。
除了热效应，红外线还具有穿透效应，用于生物医疗的专用红外LED波长为880nm，属于近红外线，可穿透人体组织达10毫米，红外光可使内皮细胞和血细胞中的血红蛋白释放一氧化氮，一氧化氮被机体细胞吸收，具有促进毛细血管扩张、改善局部血液循环、缓解肌肉痉挛、缓解疼痛等生理和治疗作用。红外线可提升吞噬细胞吞噬能力，提高人体免疫力，促进慢性炎症的吸收和消退，消除肿胀积水，对于急慢性关节病变也有较好的疗效；红外线对组织营养改善有重要作用，不仅能促进纤维细胞的再生，对纤维母细胞再生也有重要意义，因此对于伤口愈合有较好的促进作用；红外线可消炎、止疼，减轻术后粘连，可促进瘢痕软化，减轻瘢痕挛缩；红外照射可提高皮肤供氧量，对皮肤进行干燥处理，对于褥疮、冻疮也有较好的治疗效果；红外线照射还有扩张血管、降低神经兴奋性的作用，具有缓解或治疗伤后神经疼痛、带状疱疹、糖尿病ED、前列腺炎等。
传统的光疗设备一般采用外置灯的形式，以卤素灯作为光源，通过调整光源功率以及光源与患处的距离来设置辐射强度，照射面积、辐射能量很难按需调整，除了光源本身功耗大，光照密度不均匀，有些产品波长范围宽，还发射有害的紫外线成分，同时有明显的副作用：患者治疗时往往热感明显，需大量补水，光照强度过强或照射时间过长时还会引起红斑和色素沉着；近年来国内外出现了一些新型光疗设备，如采用大功率LED的灯式治疗仪，上述的部分问题依然存在；还有一些可贴合患处的光疗设备，这些设备也各有优缺点，其主要缺点有：设备多为医疗机构专用，操作复杂、体积和重量较大，携带不便；保养困难，维护成本高；治疗形式比较单一，接触温度不可控，患者体验不佳等。
 技术问题
本发明的目的在于提供一种便携式红外LED治疗仪，解决现有光疗设备携带不便、患者体验不佳等问题。
 技术解决方案
为达到上述目的，本发明采用如下技术方案：
一种便携式红外LED治疗仪，包括壳体以及内部电路板；内部电路板上设置内部电路；所述便携式红外LED治疗仪为掌托式设备；壳体上设置有作为照射面的透射窗口，壳体的透射窗口内设置有安装于内部电路板的若干个红外LED；内部电路板控制所述若干个红外LED产生红外光，通过所述透射窗口输出红外光以进行红外光热治疗。
进一步地，所述治疗仪设有温度传感器且与内部电路连接，温度传感器设置于透射窗口处和/或透射窗口内部，用于测量透射窗口和/或透射窗口内部的温度；所述温度传感器通过所述内部电路实现自动温控；所述内部电路设置有过温保护电路，当透射窗口和/或透射窗口内部的温度超过设定值，内部电路控制关闭电源输入；所述内部电路控制所述若干个红外LED选择高能量或低能量输出；所述内部电路设置有电机驱动电路，连接并驱动振动电机，实现震动按摩；所述内部电路板上还设置有若干个红光LED；所述若干个红光LED形成辅助红光LED阵列，位于壳体的透射窗口内部。
进一步地，所述内部电路包括红外LED驱动信号电路，连接并驱动所述若干个红外LED；所述红外LED驱动信号电路包括所述温度传感器以及PWM脉宽调制电路，实现自动温控，以使治疗仪的照射面达到近似恒温的效果；所述温度传感器有两个，通过信号控制其并联组合，实现高低能量输出的切换；所述过温保护电路包括所述温度传感器和滞回比较器，通过温度传感器和滞回比较器实现当温度超过设定值时关闭电源输入；所述温度传感器包括两个温度电阻NTC；电机驱动电路包括锯齿波发生和脉宽调制电路，以提供振动电机预定电压及间断驱动。
进一步地，所述PWM脉宽调制电路产生锯齿波，连接电压比较器的负输入，温度电阻NTC电路产生的电平信号连接电压比较器的正输入；随着温度升高，NTC电阻阻值下降，电平信号随之降低，比较器输出的PWM信号占空比也减小，从而实现温度负反馈；红外LED驱动信号电路的驱动电流随着温度变化：温度升高，电流减小，温度降低，电流增大，以使治疗仪的照射面达到近似恒温的效果；随着温度升高，NTC电阻的电平下降；内部电路控制所述若干个红外LED选择高能量输出时，NTC基础阻值为10K；内部电路控制所述若干个红外LED选择低能量输出时，NTC电阻的基础阻值是10K与22K并联；选择高能量输出时，PWM信号占空比大于低能量输出时的占空比，红外LED驱动信号电路的驱动电流也较大，所以产生的温度也较高；治疗仪的照射面的工作温度恒定在40~45摄氏度。
在一些实施例中，所述若干个红外LED组成阵列，实现光能均匀输出；所述若干个红外LED为数十个小功率、小封装的红外LED；所述治疗仪的电源输入为12V直流电；所述透射窗口为49*55mm的椭圆形窗口；所述红外治疗仪是一个约110*75*25mm的掌托式设备；所述红光LED波长为640nm；所述红外LED波长为880nm，所述治疗仪外形类似鼠标掌托。壳体内还设置有导热硅胶垫，以调整壳内体温度平衡；所述壳体上还设置有蜂窝孔用于散热，以实现壳体内温度平衡。
进一步地，所述内部电路包括控制信号输入；所述控制信号输入包括电源输入信号及GND、辅助功能选择信号以及高低能量选择信号；所述电源输入信号用于向所述治疗仪输入电源；所述电源输入信号与所述若干个红外LED连接用于输入直流电；辅助功能选择信号与电机驱动电路和/或若干个红光LED连接，用于选择是否启动震动电机和红光LED；所述电源输入信号与所述红光LED电连接；高低能量选择信号与所述若干个红外LED连接，以实现高能量或低能量的红外输出；所述内部电路包括相互电连接的LED电路及控制电路；所述LED电路集成于LED电路板，所述控制电路集成于控制电路板；所述LED电路板和控制电路板为两块相互电连接的电路板或者集成于同一块电路板；所述LED电路板和控制电路板构成内部电路板，安装于壳体内部。
进一步地，所述控制电路包括控制信号输入及控制信号输出、过温保护电路，还包括所述电机驱动电路及其连接的振动电机；所述LED电路包括：控制信号输入、红外LED驱动信号电路以及若干个红外LED；其中，所述LED电路的控制信号输入连接所述控制电路的控制信号输出；所述LED电路还包括所述若干个红光LED；内部电路的控制信号输入包括所述控制电路的控制信号输入以及与控制信号输出连接的LED电路的控制信号输入；所述内部电路的控制信号输入与外部信号电缆连接。
在一些实施例中，所述壳体包括上、下外壳扣合而成；上、下外壳之间的边沿设置有防水胶条；上、下外壳、LED电路板、控制电路板之间由螺丝进一步紧固；螺丝上设置有防水垫片，螺丝孔由螺丝孔胶塞防水密封；壳体上设置有工作指示灯，工作指示灯与内部电路电连接。
进一步地，所述控制信号输入与处理器电连接以及电源输入电路连接，由所述处理器产生所述控制信号。
本发明还提供一种便携式红外LED治疗设备，包括如上所述的便携式红外LED治疗仪，还包括功能控制电路，与所述治疗仪的内部电路连接，以控制治疗仪的工作。
进一步地，所述功能控制电路包括一个或多个处理器；所述功能控制电路包括还包括与处理器连接的时钟、指示灯、功能键、检测模块、编程接口；通过所述编程接口写入执行程序；处理器控制所述时钟产生所述治疗仪的使用模式；所述功能控制电路设置于独立的功能控制器内，或者设置于所述治疗仪内部、与内部电路集成于相同或不同的电路板；所述处理器连接有控制信号电路，以产生相应的控制信号，输出至所述治疗仪的内部电路。
在一些实施例中，所述指示灯包括模式指示灯、辅助功能指示灯、电源/工作指示灯；所述功能键包括MODE 模式键、AUX 辅助功能选择键、TREAT开始键；所述功能键及指示灯设置于人机交互界面上；所述人机交互界面设置于功能控制器的面板上。
进一步地，所述功能控制电路连接有电源接口，用于接入电源； 所述控制信号电路包括电源输入电路、高低能量输出控制电路、辅助功能控制电路；高低能量输出控制电路、辅助功能输出控制电路、电源输入电路与信号输出端连接；信号输出端与治疗仪的内部电路的控制信号输入连接，或者，所述信号输出端通过外部信号电缆连接于所述治疗仪的内部电路的控制信号输入；电源输入电路产生电源输出及接地信号，处理器与高低能量输出控制电路连接产生高低能量选择信号，所述处理器与辅助功能控制电路连接产生辅助功能选择信号；所述电源输入电路经过压过流保护电路后与所述处理器连接；电源输入电路连接有电压检测模块，电压检测模块通过分压电阻取样和窗口比较器电路检测电源输入电路所输入的电压值；电源输入电路与电源接口连接，用于接入电源。
在一些实施例中，所述控制信号电路及信号输出端设置于IO电路；所述IO电路还包括与电源输入电路连接的所述过压过流保护电路；IO电路包括与电源输入电路连接的所述电压检测模块；所述功能控制电路设置于功能控制电路板，所述IO电路设置于IO电路板上；所述功能控制电路板以及IO电路板设置于两块独立的电路板或者一块电路板；电源接口设置于IO电路板上。
在一些实施例中，所述电源输入电路输入12V的直流电；电源输入电路输入12V直流，经过压过流保护电路，稳压器转为5V后为所述处理器供电；电压检测模块通过分压电阻取样和窗口比较器电路检测电源输入电路输入电压是否在9~13V；所述IO电路板以及功能控制电路板设置于功能控制器内部；所述便携式红外LED治疗设备还包括电源适配器，所述电源适配器与电源接口连接，以接入外部电源。
 有益效果
本发明的有益效果是：
本发明便携式红外LED治疗仪, 体积小巧、可随身携带、使用灵活方便简单、成本低、治疗形式多样化，接触温度可控，患者体验较佳。
下面结合附图对本发明作进一步的详细描述。
 附图说明
图1是本发明实施例便携式红外LED治疗设备的示意图。
图2是本发明实施例便携式红外LED治疗仪的功能控制器的结构示意图。
图3是本发明实施例便携式红外LED治疗仪的功能控制器的爆炸图。
图4是本发明实施例功能控制器MPU电路原理图。
图5是本发明实施例功能控制器IO电路原理图。
图6是本发明实施例功能控制电路的模块图。
图7是本发明实施例便携式红外LED治疗仪的立体图，其中图(a)和图(b)为不同视角。
图8是本发明实施例便携式红外LED治疗仪的使用状态参考图，其中图(a)~(e)为不同使用场景的参考图。
图9是本发明实施例便携式红外LED治疗仪的爆炸图。
图10是本发明实施例便携式红外LED治疗仪的控制电路原理图。
图11是本发明实施例便携式红外LED治疗仪的LED电路原理图。
图12是本发明实施例便携式红外LED治疗仪的控制电路的模块图。
图13是本发明实施例便携式红外LED治疗仪的LED电路的模块图。
图14是本发明实施例便携式红外LED治疗仪的温度自动调节PWM脉宽的原理图。
图15是本发明实施例便携式红外LED治疗仪的温度传感器的电平曲线图。
 本发明的实施方式
需要说明的是，在不冲突的情况下，本申请中的各实施例及实施例中的特征可以相互结合，下面结合附图和具体实施例对本发明作进一步详细说明。
本发明的较佳实施例提供了一种利用红外光辐射能治疗疾病的医疗装置，装置具有一个由多个880波长的红外线发射LED组成的照射窗口，可对患者患处进行接触式的小面积精确光疗，该装置具有自动温控、过温保护、微震动按摩功能，体积小巧、便于携带、使用方便，可对腕部、足底、腰部、外阴、前列腺、肛周等部位进行小范围、较大辐射密度的红外光照射和温热治疗，可缓解肌肉和软组织损伤、腱鞘炎和筋膜炎造成的疼痛，以及减轻手术后疼痛、消除炎症肿胀、加快创伤愈合。
本发明的便携式红外LED治疗仪是一种体积小巧的治疗装置，例如，治疗面可设计一个约49*55mm的椭圆形透明输出窗口，内部采用数十个小功率、小封装的红外LED组成阵列实现光能均匀输出，输出窗口表面同时具备近似恒温的温热效果，内部具有自动温控、过温保护、防水防尘、震动按摩的功能，使患者得到光疗、热疗、按摩的多重功效，通过电缆连接外部功能控制器和电源适配器组成完整设备，具有低功耗、易使用、易维护、易携带的特点，适合于个人护理使用。如图8所示，本发明的便携式红外LED治疗仪适用于腕部、足底、腰部、殿部等多种部位进行光疗。也可轩入中空坐垫内使用。
请参照图1，本发明实施例的便携式红外LED治疗设备，主要包括电源适配器1、功能控制器2以及红外LED治疗仪3。电源适配器1用于接入供电电源，可以是接入市电，在一些实施例中，电源适配器也可直接为电源接线。本实施例中，电源适配器为AC/DC电源适配器，电源适配器的输出插头插入功能控制器的内插口进行从而可对功能控制器2以及治疗仪3供电。功能控制器2通过电缆线5与红外LED治疗仪3连接。电缆线5可以是两端或一端设置有接口，与功能控制器2或红外LED治疗仪3之间通过接口连接，或者一端固定连接。本实施例中，电缆线5采用4芯（不限于4芯）输入电缆，将功能控制器2与红外LED治疗仪3连接，实现信号传输（包括控制信号或电流源信号）。红外LED治疗仪3外形类似鼠标掌托，可产生光热的红外线。电源适配器1、功能控制器2以及红外LED治疗仪3之间连接完成后，将电源适配器插入交流（220V/50Hz）插座，设备加电，即可通过功能控制器2操作并控制进行治疗3。
作为一种实施例，电源适配器1可使用市售产品，例如可要求满足最大12V/1A输出，输出电压精度≤±3%，负载调整率≤±3%，纹波小于100mVp-p。
结合参照图2-6，本实施例的功能控制器2配置为红外LED治疗仪3外接的盒状结构，包括上、下外壳 21、24相互扣合形成的壳体以及壳体内部安装的功能控制电路板22、IO（输入输出）电路板23以及信号输出端24，还设置有电源接口（插口）。功能控制电路板22、IO电路板23之间通过板间连接器连接从而形成功能控制器内部的主板20，在其他实施例中，也可以设置成共用一块PCB板。信号输出端24设置于或者连接于IO电路板23，用于与红外LED治疗仪3之间连接，进行信号（包括电流信号或控制信号等）传输。通过电源接口接入（或转化为）直流电，本实施例中接入12V的直流电。壳体上设有人机交互界面26，可以是触摸屏、显示屏、按键面板等。通过人机交互界面26进行显示或操作，本实施例中，通过人机交互界面26来显示指示灯223及操作功能键224，指示灯223及功能键224设置于主板20（具体是功能控制电路板22）上，通过人机交互界面26显示或操作。其中，指示灯223包括模式指示灯2231、辅助功能指示灯2232、电源/工作指示灯2233；功能键224包括MODE 模式键2241、AUX 辅助功能选择键2242以及TREAT开始键2243。指示灯用于指示相应的工作状态，功能键分别用于对应功能的选择或设置。参照图4，功能控制器的功能控制电路板22上对设置有3个（不限于3个）功能键以及5个（不限于5个）指示灯。
结合参照图4和图6，功能控制器2的功能控制电路包括：一个或多个处理器220以及与处理器220连接的时钟222，指示灯223（包括模式指示灯2231、辅助功能指示灯2232、电源/工作指示灯2233），功能键224（MODE 模式键2241、AUX 辅助功能选择键2242、TREAT开始键2243）、检测模块225、编程接口221。处理器220可以是微处理器（MPU），内置固件（firmware），通过外部计算机和编程器下载固件程序并由编程接口221灌入执行程序。功能控制器内置的微处理器（MPU）和时钟222，通过的人机交互界面26的MODE模式键，设定红外LED治疗仪3的使用模式，例如：
模式I，为低能量治疗25分钟；
模式II，为低能量治疗30分钟；
模式III，为高能量治疗20分钟。
通过的人机交互界面26操作相应的功能键，例如，辅助功能选择键2242用于操作选择是否启动红色光输出或震动按摩；按TREAT开始键2243开始治疗，计时到达设定的时间后自动关闭输出。
功能控制器内还设置有与功能控制电路连接的IO电路，具体包括电源输入电路235以及与电源输入电路235电连接的过压过流保护电路231、电压检测模块232、高低能量输出控制电路233、辅助功能控制电路234、信号输出端236。高低能量输出控制电路233、辅助功能输出控制电路234、电源输入电路235与信号输出端236连接，信号输出端236通过4芯线缆连接控制红外LED治疗仪3。电源输入电路235，与电源接口连接用于接入电源。本实施例中，这些模块设置于IO电路板23上。电源输入电路235、过压过流保护电路231、电源电压检测电路232、高低能量输出控制电路233、辅助功能输出控制电路234与处理器220电连接，可通过板间连接器实现连接。电源输入电路235输入12V直流，经过压过流保护电路231，稳压器转为5V后为芯片（处理器220）供电；电压检测模块232通过分压电阻取样和窗口比较器电路检测12V（电源输入电路235）输入电压是否在9~13V。4个控制信号输出端236分别是12V电源输出及接地、高低能量选择信号输出、辅助功能选择信号输出。
具体例子中，通过电源输入电路235向功能控制器2输入12V直流电，功能控制器2内置过流保护、过压保护和电源电压监测（电压超出设定值将不能启动红外治疗仪），再通过4芯线缆连接控制红外LED治疗仪3，除了电源正负，还有两根控制线，一根为高低能量控制，另一根为辅助功能控制。
可以理解，在其他实施例中，功能控制器2也可以设置于红外LED治疗仪3上，但会增大红外LED治疗仪3的体积。
参照图7-13，本发明的红外LED治疗仪3，是一种掌托式设备，例如一个约110*75*25mm的掌托式设备，包括塑料（例如聚碳酸酯PC）外壳、内部有控制电路30，带有4芯电缆5和专用插头。治疗仪3具有一个例如49*55的椭圆透射窗口31，可输出红外光（880nm）和红光（640nm），窗口外部有一个运行指示灯32。透射窗口31内部的电路板上有温度传感器33，用于测量外壳窗口和内部温度，再通过内部电路实现自动温控。LED电路板上的温度传感器有两个，通过外部信号电缆信号控制其并联组合，实现高低能量输出的切换。红外LED治疗仪3内部电路实现过温度保护功能，防止治疗仪3在散热不良环境下温度过高。红外LED治疗仪3具有振动电机以及定时驱动电路，通过外部信号电缆控制启停。本发明的红外治疗仪维护简单，防水防尘，可承受汗水污垢，可用水或中性洗涤液清洗。
红外LED治疗仪3的具体结构包括：上下外壳33、34相互扣合形成壳体以及壳体内部安装的LED电路板35以及控制电路板30。LED电路板35与控制电路板30之间通过板间连接器或者电线进行电连接，LED电路板35可由螺丝14固定于壳体。本实施例中，透射窗口31设置于上外壳33上，LED电路板35位于透射窗口31内。控制电路板30上通过螺丝8与LED电路板35之间固定，螺丝8上套设有垫圈9。上下外壳的边沿之间夹设有防水胶条4。5，控制电缆5末端可设置插头与控制电路板30连接。壳体内还设置有导热硅胶垫7，以调整壳体内温度平衡。下壳上可设置散热孔，例如中间圆形区域设置有蜂窝孔用于散热，以实现壳体内温度平衡，开孔区域周边设有防水胶圈10。上下外壳33、34之间可进一步由螺丝12固定，螺丝上设置有防水垫片。所有螺丝孔上可进一步设置有螺丝孔胶塞13，用于防水。
对照图10和12，红外LED治疗仪3的控制信号输入及控制信号输出、过温保护电路305、电机驱动304及其连接的振动电机36。所述控制信号输入包括电源输入信号303及GND、辅助功能选择信号302以及高低能量选择信号301。
通过4芯电缆5和专用插头从功能控制器2输入4个控制信号，其中电源输入信号303可以是12V的直流电；辅助功能选择信号302用于选择是否启动振动电机和/或12个可见红光LED；H_L是高低能量选择信号301用于选择红外LED的高能量输出或低能量输出，以驱动相应的红外LED以及温度传感器的调节。过温保护电路305用于过温保护，通过电路板上的温度电阻NTC 37和滞回比较器实现当光疗温度超过设定值时关闭12V电源输入。电机驱动304，是通过锯齿波发生和脉宽调制电路为3V振动电机，以提供约0.5赫兹的间断驱动。
参照图11及图13，治疗仪LED电路板35上集成的LED电路包括：控制信号输入、温度自动调节的红外LED驱动信号电路以及红外LED阵列。其中，控制信号输入电路包括有4个控制信息（但不限于4个），具体包括其中电源输入信号353(12V直流电和GND)、AUX辅助功能选择信号352（用于选择是否启动12个可见红光LED或震动电机）、高低能量选择信号351。输入的信号对应驱动相应的LED阵列工作。两个温度电阻NTC（热敏电阻或温度传感器）37以及PWM脉宽调制电路38构成了温度自动调节的红外LED驱动信号，与红外LED电连接，选择对应的光源工作。电源输入信号353与红外LED电连接，用于供电。红外LED设置为LED阵列40~42，例如11*7的红外LED阵列，以小功率小封装结构的LED灯珠组成。根据温度选择的工作模式，功能控制器2控制对应的LED光源工作，具体通过高低能量选择信号进行控制红外LED按高能量输出或低能量输出。本实施例中，LED灯还包括辅助红光LED 39，例如，辅助红光LED 39为12个辅助红光LED串联/并联的布置，通过辅助功能选择是否启动振动电机或是否启动12个可见红光LED工作。
结合参照图14，锯齿波发生电路即PWM脉宽调制电路38产生锯齿波，连接电压比较器的负输入，温度电阻NTC电路37产生的电平信号连接电压比较器的正输入，在温度1时，比较器输出PWM信号1，占空比较宽，随着温度升高，NTC电阻阻值下降，电平信号随之降低，比较器输出的PWM信号占空比也减小，如图中的PWM信号2，这样就构成了温度负反馈，红外LED阵列的驱动电流随着温度变化，温度升高，电流减小，温度降低，电流增大，这样治疗仪照射面就达到近似恒温的效果。
结合对照图15，温度传感器电路37产生的电平信号NTC_LEVEL图，随着温度升高（图中0~85摄氏度），电平下降；电路中的H_L信号，控制NTC的基础阻值（25℃阻值），选择H高能量时，NTC基础阻值为10K，电平变化为图中曲线1，选择L低能量时，NTC基础阻值是10K与22K并联，电平变化为图中曲线2，可知选择H高能量时，PWM信号占空比大于L低能量时的占空比，红外LED的驱动电流也较大，所以产生的温度也较高。
在其他实施例中，红外LED治疗仪3的控制电路板30与LED电路板35可设置于同一块PCB板。
本发明的红外LED治疗仪3，也可采用内置电池（例如可充电蓄电池）作为工作电源。
通过上述的方法在多数条件下可实现治疗仪的恒温效果，如在常温环境下暴露在空气中，或常温下治疗面贴合人体皮肤，治疗仪通过外界热量交换和温度反馈调节达到温度平衡，治疗面的温度恒定在40~45摄氏度（H高能量温度比L低能量高2摄氏度左右），可满足日常热敷功能的需要，但在极端条件下时，温度调节功能可能失效：在无法散热环境下，例如放入衣物、被褥中，温度反馈出现失调，外壳温度将一直升高，因此在控制板上设计了温度保护电路，当内部控制板温度超过70摄氏度（散热不良环境下外壳温度超过58摄氏度）时，关闭红外治疗仪输出，实现过温保护。
本发明实施例的便携式红外LED治疗仪2，改善了现有光疗设备的问题，设计了一种体积小巧的治疗装置，与其他产品和设备相比，具有以下优点：体积小、重量轻、低功耗，便于携带和使用，操作简单，适合个人护理使用；光疗窗口为49*55mm的椭圆形窗口，（不限于）77个880nm的红外光发光二极管组成阵列实现光能均匀输出，单一波长，安全可靠，穿透力强；输出窗口表面有恒温的温热效果，具有自动温控、过温保护、防水防尘、震动按摩的功能，使患者得到光疗、热敷、按摩的多重功效，患者体感舒适。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或可传输数据的连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，均应属于本申请的范围；本发明的保护范围由所附权利要求及其等同范围限定。

Claims (15)

  1. 一种便携式红外LED治疗仪，包括壳体以及内部电路板；内部电路板上设置内部电路；其特征在于：所述便携式红外LED治疗仪为掌托式设备；壳体上设置有作为照射面的透射窗口，壳体的透射窗口内设置有安装于内部电路板的若干个红外LED；内部电路板控制所述若干个红外LED产生红外光，通过所述透射窗口输出红外光以进行红外光热治疗。
  2. 如权利要求1所述的治疗仪，其特征在于：
    所述治疗仪设有温度传感器且与内部电路连接，温度传感器设置于透射窗口处和/或透射窗口内部，用于测量透射窗口和/或透射窗口内部的温度；
    所述温度传感器通过所述内部电路实现自动温控；
    所述内部电路设置有过温保护电路，当透射窗口和/或透射窗口内部的温度超过设定值，内部电路控制关闭电源输入；
    所述内部电路控制所述若干个红外LED选择高能量或低能量输出；
    所述内部电路设置有电机驱动电路，连接并驱动振动电机，实现震动按摩；
    所述内部电路板上还设置有若干个红光LED；所述若干个红光LED形成辅助红光LED阵列，位于壳体的透射窗口内部。
  3. 如权利要求2所述的治疗仪，其特征在于：
    所述内部电路包括红外LED驱动信号电路，连接并驱动所述若干个红外LED；所述红外LED驱动信号电路包括所述温度传感器以及PWM脉宽调制电路，实现自动温控，以使治疗仪的照射面达到近似恒温的效果；
    所述温度传感器有两个，通过信号控制其并联组合，实现高低能量输出的切换；
    所述过温保护电路包括所述温度传感器和滞回比较器，通过温度传感器和滞回比较器实现当温度超过设定值时关闭电源输入；
    所述温度传感器包括两个温度电阻NTC；
    电机驱动电路包括锯齿波发生和脉宽调制电路，以提供振动电机预定电压及间断驱动。
  4. 如权利要求3所述的治疗仪，其特征在于：
    所述PWM脉宽调制电路产生锯齿波，连接电压比较器的负输入，温度电阻NTC电路产生的电平信号连接电压比较器的正输入；
    随着温度升高，NTC电阻阻值下降，电平信号随之降低，比较器输出的PWM信号占空比也减小，从而实现温度负反馈；
    红外LED驱动信号电路的驱动电流随着温度变化：温度升高，电流减小，温度降低，电流增大，以使治疗仪的照射面达到近似恒温的效果；
    随着温度升高，NTC电阻的电平下降；
    内部电路控制所述若干个红外LED选择高能量输出时，NTC基础阻值为10K；内部电路控制所述若干个红外LED选择低能量输出时，NTC电阻的基础阻值是10K与22K并联；选择高能量输出时，PWM信号占空比大于低能量输出时的占空比，红外LED驱动信号电路的驱动电流也较大，所以产生的温度也较高；
    治疗仪的照射面的工作温度恒定在40~45摄氏度。
  5. 如权利要求2所述的治疗仪，其特征在于：
    所述若干个红外LED组成阵列，实现光能均匀输出；所述若干个红外LED为数十个小功率、小封装的红外LED；
    所述治疗仪的电源输入为12V直流电；
    所述透射窗口为49*55mm的椭圆形窗口；
    所述治疗仪是一个约110*75*25mm的掌托式设备；
    所述红光LED波长为640nm；所述红外LED波长为880nm；
    所述治疗仪外形类似鼠标掌托；
    壳体内还设置有导热硅胶垫，以调整壳内体温度平衡；
    所述壳体上还设置有蜂窝孔用于散热，以实现壳体内温度平衡。
  6. 如权利要求1~5任一项所述的治疗仪，其特征在于：
    所述内部电路包括控制信号输入；所述控制信号输入包括电源输入信号及GND、辅助功能选择信号以及高低能量选择信号；
    所述电源输入信号用于向所述治疗仪输入电源；所述电源输入信号与所述若干个红外LED连接用于输入直流电；
    辅助功能选择信号与电机驱动电路和/或若干个红光LED连接，用于选择是否启动震动电机和红光LED；所述电源输入信号与所述红光LED电连接；
    高低能量选择信号与所述若干个红外LED连接，以实现高能量或低能量的红外输出；
    所述内部电路包括相互电连接的LED电路及控制电路；所述LED电路集成于LED电路板，所述控制电路集成于控制电路板；所述LED电路板和控制电路板为两块相互电连接的电路板或者集成于同一块电路板；所述LED电路板和控制电路板构成内部电路板，安装于壳体内部。
  7. 如权利要求6所述的治疗仪，其特征在于：
    所述控制电路包括控制信号输入及控制信号输出、过温保护电路，还包括所述电机驱动电路及其连接的振动电机；
    所述LED电路包括：控制信号输入、红外LED驱动信号电路以及若干个红外LED；
    其中，所述LED电路的控制信号输入连接所述控制电路的控制信号输出；
    所述LED电路还包括所述若干个红光LED；
    内部电路的控制信号输入包括所述控制电路的控制信号输入以及与控制信号输出连接的LED电路的控制信号输入；
    所述内部电路的控制信号输入与外部信号电缆连接。
  8. 如权利要求6所述的治疗仪，其特征在于：
    所述壳体包括上、下外壳扣合而成；
    上、下外壳之间的边沿设置有防水胶条；上、下外壳、LED电路板、控制电路板之间由螺丝进一步紧固；螺丝上设置有防水垫片，螺丝孔由螺丝孔胶塞防水密封；
    壳体上设置有工作指示灯，工作指示灯与内部电路电连接。
  9. 如权利要求6所述的治疗仪，其特征在于：所述控制信号输入与处理器电连接以及电源输入电路连接，由所述处理器产生所述控制信号。
  10. 一种便携式红外LED治疗设备，其特征在于：包括权利要求1~9任一项所述的便携式红外LED治疗仪，还包括功能控制电路，与所述治疗仪的内部电路连接，以控制治疗仪的工作。
  11. 如权利要求10所述的治疗设备，其特征在于：
    所述功能控制电路包括一个或多个处理器；
    所述功能控制电路包括还包括与处理器连接的时钟、指示灯、功能键、检测模块、编程接口；
    通过所述编程接口写入执行程序；
    处理器控制所述时钟产生所述治疗仪的使用模式；
    所述功能控制电路设置于独立的功能控制器内，或者设置于所述治疗仪内部、与内部电路集成于相同或不同的电路板；
    所述处理器连接有控制信号电路，以产生相应的控制信号，输出至所述治疗仪的内部电路。
  12. 如权利要求11所述的治疗设备，其特征在于：
    所述指示灯包括模式指示灯、辅助功能指示灯、电源/工作指示灯；
    所述功能键包括MODE 模式键、AUX 辅助功能选择键、TREAT开始键；
    所述功能键及指示灯设置于人机交互界面上；
    所述人机交互界面设置于功能控制器的面板上。
  13. 如权利要求11所述的治疗设备，其特征在于：
    所述功能控制电路连接有电源接口，用于接入电源；
    所述控制信号电路包括电源输入电路、高低能量输出控制电路、辅助功能控制电路；高低能量输出控制电路、辅助功能输出控制电路、电源输入电路与信号输出端连接；信号输出端与治疗仪的内部电路的控制信号输入连接，或者，所述信号输出端通过外部信号电缆连接于所述治疗仪的内部电路的控制信号输入；
    电源输入电路产生电源输出及接地信号，处理器与高低能量输出控制电路连接产生高低能量选择信号，所述处理器与辅助功能控制电路连接产生辅助功能选择信号；
    所述电源输入电路经过压过流保护电路后与所述处理器连接；
    电源输入电路连接有电压检测模块，电压检测模块通过分压电阻取样和窗口比较器电路检测电源输入电路所输入的电压值；
    电源输入电路与电源接口连接，用于接入电源。
  14. 如权利要求13所述的治疗设备，其特征在于：所述
    所述控制信号电路及信号输出端设置于IO电路；
    所述IO电路还包括与电源输入电路连接的所述过压过流保护电路；IO电路包括与电源输入电路连接的所述电压检测模块；
    所述功能控制电路设置于功能控制电路板，所述IO电路设置于IO电路板上；所述功能控制电路板以及IO电路板设置于两块独立的电路板或者一块电路板；
    电源接口设置于IO电路板上。
  15. 如权利要求14所述的治疗设备，其特征在于：
    所述电源输入电路输入12V的直流电；
    电源输入电路输入12V直流，经过压过流保护电路，稳压器转为5V后为所述处理器供电；电压检测模块通过分压电阻取样和窗口比较器电路检测电源输入电路输入电压是否在9~13V；
    所述IO电路板以及功能控制电路板设置于功能控制器内部；
    所述便携式红外LED治疗设备还包括电源适配器，所述电源适配器与电源接口连接，以接入外部电源。
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