CN211584922U - Xenon lamp discharge circuit and physical therapy instrument - Google Patents
Xenon lamp discharge circuit and physical therapy instrument Download PDFInfo
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- CN211584922U CN211584922U CN201922193785.XU CN201922193785U CN211584922U CN 211584922 U CN211584922 U CN 211584922U CN 201922193785 U CN201922193785 U CN 201922193785U CN 211584922 U CN211584922 U CN 211584922U
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Abstract
The utility model provides a be used for xenon lamp discharge circuit includes precombustion circuit, charging circuit, energy storage circuit and discharge switch, the output of charging circuit is connected the energy storage circuit, the output of energy storage circuit is connected the discharge switch, the precombustion circuit is connected the xenon lamp, the precombustion circuit is used for providing the xenon lamp and triggers high pressure and make the xenon lamp be in glow discharge state; when the xenon lamp is in a glow discharge state, the energy storage circuit enables the xenon lamp to discharge under the action of the discharge switch. The utility model also relates to a physical therapy instrument. This novel intelligent control technique that adopts eliminates the potential danger that first pulse light brought, and the application is the technique of evenly discharging, and pulse waveform is steady, and output energy is more stable, and therapeutic effect is safer, reliable.
Description
Technical Field
The utility model relates to a meibomian gland dysfunction field, concretely relates to xenon lamp discharge circuit and physiotherapy equipment.
Background
At present, the dry eye is the most common eye surface disease in China and the world, and becomes the 4 th approximately blind disease worldwide, and the incidence rate of the Asia dry eye is in the front of the world, and a plurality of researches show that the incidence rate of the dry eye is 5.5 to 33.7 percent worldwide, and the incidence rate of the dry eye is about 20 to 36 percent in China.
With the influence of popularization of electronic products, cosmetics, contact lenses, environmental pollution and the like in life, the prevalence rate of dry eyes is increasing, and the dry eyes become an important eye surface disease affecting the life quality of people. The continuous dry eye is not treated or has poor treatment effect, and corneal injury, perforation and eyeball atrophy can be caused, so that the normal work and life of a patient are seriously influenced.
Researchers at home and abroad generally consider that meibomian gland dysfunction is the leading cause of dry eye, of which about 65% of patients are evaporative dry eye and meibomian gland dysfunction is the leading cause of hyperevaporative dry eye.
The final duct of meibomian glands is blocked due to meibomian gland dysfunction, leading to duct keratinization, accompanied by a series of problems such as lipid layer quantity and quality change, and the like, thereby causing symptoms related to xerophthalmia such as impaired tear film thickness and function, and rapid tear evaporation during blinking.
There are numerous dry eye patients worldwide and there is an urgent need for effective treatment.
Current methods of treating dry eye are divided into: physical therapy, medicinal therapy, traditional Chinese medicine therapy, surgical therapy and the like. And (3) drug treatment: mainly comprises artificial tears, antibacterial drugs, anti-inflammatory drugs, N-acetylcysteine, sex hormones and the like; for patients with severe reduction of tears and severe clinical symptoms of dry eye patients, when the administration of medicaments is ineffective or has poor effect, the patients can be subjected to surgical treatment according to the actual conditions of the patients, and the operation mainly comprises punctum obstruction operation and eyelid margin local suture operation; the traditional Chinese medicine treatment comprises the following steps: the current clinical main application methods comprise oral decoction therapy, acupuncture therapy, traditional Chinese medicine fumigation therapy and comprehensive therapy, wherein the comprehensive therapy comprises damp-heat compress, traditional Chinese medicine ion introduction, needle and medicine combination therapy and the like; physical therapy: the conventional basic treatment of meibomian gland dysfunction includes eye hot compress, meibomian gland massage, eyelid margin cleaning and the like.
Clinically, different treatment methods can be selected for patients with different dry eye diseases of different reasons and different degrees, such as traditional Chinese medicine, acupuncture, artificial tears, cyclosporine, autologous serum, operation treatment and the like, and all the methods can achieve certain treatment effects, but the respective defects are obvious: the drug treatment has adverse reactions, drug resistance and long-term compliance; the existing physical therapy method has slow effect, limited action and long treatment period, and needs patients to have good compliance; the operation treatment is painful and invasive; the traditional Chinese medicine treatment needs systematic scientific research from mechanism.
The above methods have insignificant or side effects, or trauma, painful treatment process, easy recurrence, etc., and there is an urgent need for a new technology and method for safe, effective, and noninvasive treatment of dry eye for dry eye patients.
In addition, the traditional pulse xenon lamp power supply system mostly adopts free discharge, and in the discharge process, the xenon lamp voltage is equal to the energy library voltage and is not controlled. As the energy is released, the energy reservoir voltage drops, so the voltage on the xenon lamp also drops. This results in the decreasing energy injected into the xenon lamp, the rate of decrease is determined by the size of the energy bank and the output power, and the waveform of the xenon lamp voltage is indicative.
Novel content
In order to overcome the not enough of prior art, this novel a be used for xenon lamp discharge circuit that provides, this circuit can effectively avoid the shortcoming among the prior art.
A discharge circuit for a xenon lamp comprises a pre-burning circuit, a charging circuit, an energy storage circuit and a discharge switch, wherein the output end of the charging circuit is connected with the energy storage circuit, the output end of the energy storage circuit is connected with the discharge switch, the pre-burning circuit is connected with the xenon lamp, and the pre-burning circuit is used for providing triggering high voltage for the xenon lamp and enabling the xenon lamp to be in a glow discharge state; when the xenon lamp is in a glow discharge state, the energy storage circuit enables the xenon lamp to discharge under the action of the discharge switch.
Preferably, the pre-burning circuit comprises a high-voltage triggering part and a current maintaining part, and the high-voltage triggering part and the current maintaining part are simultaneously connected with a xenon lamp; wherein the content of the first and second substances,
the high-voltage trigger part comprises a fourth voltage, a second capacitor, a thyristor and a second transformer, the second capacitor is connected with the thyristor, the fourth voltage is used for charging the second capacitor, the second transformer comprises a primary coil and a secondary coil, and the second capacitor is connected with the primary coil; when the voltage at two ends of the second capacitor is equal to the fourth voltage, the controlled silicon is conducted, the second capacitor discharges through the primary coil, and the secondary coil induces high-voltage pulses, so that gas in the xenon lamp is ionized to form an ionization spark channel;
the current maintaining part comprises a third voltage, the third voltage is connected with two ends of the xenon lamp, and after the xenon lamp is ionized, the third voltage enables the xenon lamp to maintain a glow discharge state.
Preferably, the charging circuit is connected with an alternating current, the charging circuit includes a first rectifying and filtering circuit, a second rectifying and filtering circuit, an inverter circuit and a first transformer, the alternating current is connected with the first rectifying and filtering circuit, the first rectifying and filtering circuit is connected with the inverter circuit, the inverter circuit is connected with the first transformer, the first transformer is connected with the second rectifying and filtering circuit, and a direct current voltage with a set voltage value is obtained through the second rectifying and filtering circuit; the energy storage circuit comprises a first capacitor, and the direct-current voltage with the set voltage value is used for charging the first capacitor; when the voltage value of the first capacitor is smaller than the set voltage value, the charging circuit charges the first capacitor.
A physical therapy instrument comprises a therapy instrument body, wherein the therapy instrument body comprises a xenon lamp discharge circuit, a level conversion module, an input module, a main control module and a therapy head module, and the level conversion module is connected with the input module and the main control module; wherein the content of the first and second substances,
the input module is used for setting treatment parameters, the treatment parameters comprise energy density, pulse width and treatment time, the input module sends the set treatment parameters to the main control module, and the main control module sends instructions to the pre-burning circuit, the charging circuit or the discharging switch after receiving the treatment parameters;
the treatment head module comprises a xenon lamp, and after the xenon lamp pre-burns in the pre-burning circuit, the discharge switch is switched on to enable the energy storage circuit to output light pulses;
the xenon lamp receives the light pulse and then carries out pulse discharge, and the light emitted by the xenon lamp acts on the treatment part of the patient after optical treatment.
Preferably, the treatment head module further comprises a light guide crystal, a condenser and an optical filter, the xenon lamp is arranged between the condenser and the optical filter, and the optical filter is arranged between the xenon lamp and the light guide crystal; light emitted by the xenon lamp is reflected by the condenser lens and is parallelly injected into the optical filter, light with specific wavelength obtained by filtering through the optical filter enters the light guide crystal, and the light guide crystal acts on the treatment part of the patient.
Preferably, the therapeutic apparatus body further comprises an over-temperature protection module, the over-temperature protection module comprises a temperature sampling circuit and an over-temperature protection circuit, and the temperature sampling circuit is connected with the over-temperature protection circuit; the temperature sampling circuit is connected with the pulse power supply module and the treatment head module, the main control module comprises a microcontroller, and the over-temperature protection circuit is connected with the microcontroller; the temperature sampling circuit collects the temperatures of the pulse power supply module and the treatment head module and sends the collected information to the microcontroller; when the temperature that the temperature sampling circuit gathered is greater than the settlement temperature, microcontroller sends the instruction for over-temperature protection circuit, over-temperature protection circuit stops the output of therapeutic instrument body.
Preferably, the therapeutic apparatus body further comprises a cooling module, the cooling module comprises a semiconductor refrigeration unit and a water cooling unit, the semiconductor refrigeration unit is connected with the light guide crystal and a microcontroller, and the microcontroller adjusts the semiconductor refrigeration unit to enable the light guide crystal to keep a set temperature; the water cooling unit comprises a water cooling channel, and the water cooling channel is used for evacuating heat generated by the xenon lamp.
Preferably, the therapeutic apparatus body further comprises a pulse counting module, the pulse counting module comprises a data processing and displaying unit and an optical pulse counting unit, and the data processing and displaying unit is connected with the optical pulse counting unit; the data processing and displaying unit is connected with the microcontroller, and the light pulse counting unit is connected with the therapeutic head module.
Preferably, the treatment head module further comprises a display screen, the data processing and displaying unit processes the data recorded by the light pulse counting unit and transmits the data to the display screen, and the display screen displays the number of the light pulses.
Preferably, the temperature acquisition circuit comprises a thermistor, the thermistor is installed in the treatment head module, the thermistor and the light guide crystal are installed adjacently, the temperature acquisition circuit sends acquired information to the microcontroller, when the temperature acquired by the temperature acquisition circuit is greater than a set temperature, the microcontroller sends an instruction to the over-temperature protection circuit, and the over-temperature protection circuit stops the output of the treatment instrument body.
Compared with the prior art, the novel beneficial effects are that:
1. compared with methods such as physical therapy, drug therapy, surgical therapy and the like, the novel xerophthalmia treatment system overcomes the defects of unobvious treatment effect, side effect, wound, pain in the treatment process and the like, has the advantages of safety, no wound and the like, and is an optimal novel therapy;
2. only a few pulse lights are applied to the lower eyelid of the patient to finish one-time treatment, so that the treatment is convenient and quick, the treatment is carried along, and the normal work and life of the patient are not influenced.
3. The effect is obvious and durable: the duration of the therapeutic effect is longer as the number of treatments increases. On one hand, the utility model heats meibum to dredge the obstructed meibomian gland and promote the normal secretion and function recovery of the gland; on the other hand, the light with specific wavelength can inhibit the propagation of inflammatory factors, kill microorganisms, eliminate the inducement of meibomian gland dysfunction and achieve the aim of fundamentally treating xerophthalmia.
4. Safe and reliable: the over-temperature protection function adopts an intelligent control technology and an efficient skin cooling technology, eliminates potential risks caused by first pulse light, and adopts an even discharge technology, so that the pulse waveform is stable, the output energy is more stable, and the treatment effect is safer and more reliable.
5. The touch screen is adopted for man-machine interaction, and is simple, convenient and visual.
The foregoing description is only an overview of the present invention, and in order to make the technical means of the present invention more clearly understood and to make the same practical in accordance with the contents of the present specification, the following detailed description is given with reference to the accompanying drawings and preferred embodiments of the present invention. Specific embodiments of the present invention are given in detail by the following examples and the accompanying drawings thereof.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is an overall flow chart of a xenon lamp discharge method of the present invention;
FIG. 2 is a logic diagram of the overall structure of the physical therapeutic apparatus of the present invention;
FIG. 3 is a schematic view of the overall structure of the therapeutic apparatus;
FIG. 4 is a schematic view of the therapeutic head module of the novel physical therapy apparatus;
FIG. 5 is a schematic diagram of a charging circuit for a xenon discharge circuit in accordance with the present invention;
FIG. 6 is a schematic diagram of a pre-ignition circuit for a xenon discharge circuit in accordance with the present invention;
reference numerals: 501. spotlight, 502, xenon lamp, 503, filter, 504, light guide crystal.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the following embodiments or technical features can be used to form a new embodiment without conflict.
It should be noted that:
the utility model mainly provides a xenon lamp discharge method, a circuit and a physical therapeutic apparatus aiming at meibomian gland dysfunction; in order to realize the stability of output energy, a chopping discharge technology is adopted to ensure that the voltage at two ends of a xenon lamp is uniform and stable. By collecting the voltages at the two ends of the xenon lamp and comparing the voltages with a given reference value, the control module controls the duty ratio of the chopping pulse according to the comparison result to change the output voltage, so that the uniformity and stability of the voltages at the two ends of the xenon lamp are ensured.
The pulse in the embodiment is obtained by replacing a pulse wave with a plurality of N small square waves through a pulse segmentation technology, the small square waves have time interval, so that the energy and the temperature are not too high, the aim is to divide high energy into a plurality of sub-pulses to be emitted to a treatment area, the sub-pulses are slowly, mildly and repeatedly stimulated to treat the sensitive diseases, and the pigment stimulation to the sensitive diseases is reduced, so that the phenomenon that the stimulation is too heavy and the secondary pigmentation is caused is avoided.
The width, the repetition frequency and the pulse energy of each pulse are accurately controlled through the main control module, and each parameter of the first pulse and the second pulse is configured, so that the pulse parameter precision is adjustable, and the treatment effect is ensured. The intelligent control technology is adopted to eliminate potential danger caused by the first pulse light, the uniform discharge technology is adopted, the pulse waveform is stable, the output energy is more stable, and the treatment effect is safer and more reliable.
A xenon lamp discharge method, as shown in fig. 1, comprising the steps of:
s1, obtaining a first alternating voltage, inputting the first alternating voltage into a charging circuit, processing the first alternating voltage, outputting a second direct voltage by the charging circuit, charging a first capacitor by the charging circuit, performing pulse discharge on the xenon lamp input energy by the first capacitor, wherein the second direct voltage is the voltage at two ends of the first capacitor, and the second direct voltage is a set voltage value; in one embodiment, the first alternating current voltage is AC220V voltage, the AC220V voltage is rectified and filtered to output a direct current voltage, the charging circuit is used for charging a first capacitor C, and the first capacitor C is used for pulse discharging of input energy of a xenon lamp.
Specifically, in the charging circuit, the first ac voltage is rectified and filtered to output a first dc voltage, the first dc voltage is input to the inverter circuit, the inverter circuit outputs a second ac voltage, the second ac voltage is rectified and filtered to output a second dc voltage, and the second dc voltage value is the set voltage value at the two ends of the first capacitor. In one embodiment, the direct current voltage is input into an inverter circuit, and the inverter circuit is a full-bridge circuit formed by four MOS (metal oxide semiconductor) tubes; the voltage output by the full-bridge circuit passes through the first transformer B0 and then the voltage value output by the rectification filtering processing, namely the set voltage value at the two ends of the first capacitor C.
S2, the pre-burning circuit generates high-voltage pulses to enable an ionization spark channel to be established between the two electrodes of the xenon lamp, and a third voltage is applied to the two electrodes of the xenon lamp to enable the xenon lamp to be in a glow discharge state; in one embodiment, the xenon lamp is connected to a pre-ignition circuit which generates a high voltage pulse to establish an ionization spark channel between the two electrodes of the xenon lamp and the xenon lamp is placed in a glow discharge state by applying a third voltage V2 across the two electrodes of the xenon lamp.
S3, when the charging circuit detects that the voltage value across the first capacitor C is lower than the set voltage value, the charging circuit charges the first capacitor C so that the voltage value across the first capacitor C maintains the set voltage value; when the xenon lamp is in a glow discharge state, the first capacitor C enables the xenon lamp to discharge uniformly under the action of the discharge switch T. In one embodiment, the pre-burning circuit comprises a second transformer B, a xenon lamp is connected with the second transformer B, when the voltage value of the two ends of a second capacitor C1 connected with the second transformer B is equal to the voltage V1 for charging the second capacitor C1, a thyristor connected with the second transformer B is conducted, the second capacitor C1 is discharged, and a high-voltage pulse is generated by the second transformer B and enables an ionization spark channel to be established between the two ends of the xenon lamp.
A discharge circuit for a xenon lamp comprises a pre-burning circuit, a charging circuit, an energy storage circuit and a discharge switch T, wherein the output end of the charging circuit is connected with the energy storage circuit, the output end of the energy storage circuit is connected with the discharge switch T, the pre-burning circuit is connected with the xenon lamp, and the pre-burning circuit is used for providing triggering high voltage for the xenon lamp and enabling the xenon lamp to be in a glow discharge state; when the xenon lamp is in a glow discharge state, the energy storage circuit enables the xenon lamp to discharge uniformly under the action of the discharge switch T.
In one embodiment, as shown in fig. 5, the pre-burning circuit comprises a high-voltage trigger part and a current maintaining part, wherein the high-voltage trigger part and the current maintaining part are simultaneously connected with a xenon lamp; wherein the content of the first and second substances,
the high-voltage trigger part comprises a fourth voltage V1, a second capacitor C1, a thyristor and a second transformer B, wherein the second capacitor C1 is connected with the thyristor, the fourth voltage V1 is used for charging the second capacitor C1, the second transformer B comprises a primary coil and a secondary coil, and the second capacitor C1 is connected with the primary coil; when the voltage across the second capacitor C1 is equal to the fourth voltage V1, the thyristor is turned on, the second capacitor C1 discharges through the primary coil, and the secondary coil induces a high-voltage pulse, so that the gas in the xenon lamp is ionized to form an ionization spark channel;
the current maintaining part comprises a third voltage V2, the third voltage V2 is connected with two ends of the xenon lamp, and the third voltage V2 enables the xenon lamp to maintain a glow discharge state after the xenon lamp is ionized. In this embodiment, the function of the ignition circuit is to establish an ionizing spark path between the two lamp electrodes, thereby causing a main discharge to occur. The trigger circuit triggers the xenon lamp by using the high voltage of the pulse generated by the second transformer B, the power supply V1 used by the trigger circuit is generally hundreds of volts, the thyristor is triggered to be conducted after the capacitor C1 is charged to V1, the capacitor C1 discharges through the primary coil of the transformer B, the secondary coil induces the high voltage pulse of tens of thousands of volts, and the gas in the lamp is ionized to form a channel; after the triggering is completed, a third voltage V2 is applied to the lamp electrode to maintain a low current glow discharge of the lamp for a long time, typically several tens of milliamperes. Therefore, when the device works repeatedly, triggering is not needed, and only the discharge switch T is turned on. In the embodiment, the pre-burning circuit provides two functions of triggering high voltage and maintaining current, so that the xenon lamp is in a stable glow discharge state before pulse heavy current discharge, repeated triggering and pre-burning are avoided, the service life of the xenon lamp is prolonged, electromagnetic interference caused by triggering is reduced, and the system can work reliably and stably.
In one embodiment, as shown in fig. 6, the charging circuit is connected with an alternating current, the charging circuit includes a first rectifying and filtering circuit, a second rectifying and filtering circuit, an inverter circuit and a transformer B0, the alternating current is connected with the first rectifying and filtering circuit, the first rectifying and filtering circuit is connected with the inverter circuit B0, the inverter circuit is connected with the transformer B0, the transformer B0 is connected with the second rectifying and filtering circuit, and a direct current voltage with a set voltage value is obtained through the second rectifying and filtering circuit; the energy storage circuit comprises a first capacitor C, and the direct-current voltage with the set voltage value is used for charging the first capacitor C; when the voltage value of the first capacitor C is smaller than the set voltage value, the charging circuit charges the first capacitor C. In this embodiment, the first capacitor C is an energy storage capacitor, the charging circuit is connected to the AC220V voltage, the AC220V voltage outputs a dc voltage to the inverter circuit after being rectified and filtered, the inverter circuit is a full bridge circuit formed by four MOS transistors, the inverter circuit is connected to the transformer B0, the voltage is boosted by the transformer B0 and then passes through the rectifier and filter circuit to obtain a dc voltage with a set voltage value, and the set dc voltage value is about 400V; the energy storage circuit comprises a first capacitor C, and the direct-current voltage with a set voltage value is used for charging the first capacitor C; after the xenon lamp is pre-burned, a discharge switch T is opened, and the energy of the first capacitor C is injected into the xenon lamp to perform pulse discharge; the charging circuit detects the voltage value of the first capacitor C, and when the voltage value is lower than a set voltage value, the charging circuit charges the first capacitor C. The charging circuit charges the first capacitor C, and the energy of the charging capacitor is applied to two ends of the xenon lamp under the action of the discharge switch to discharge the xenon lamp.
A physical therapy apparatus, as shown in figures 2-4, comprises a therapy apparatus body, wherein the therapy apparatus body comprises a xenon lamp discharge circuit, a level conversion module, an input module, a main control module and a therapy head module, and the level conversion module is connected with the input module and the main control module; wherein the content of the first and second substances,
the input module is used for setting treatment parameters, the treatment parameters comprise energy density, pulse width and treatment time, the input module sends the set treatment parameters to the main control module, and the main control module sends instructions to the pre-burning circuit, the charging circuit or the discharging switch after receiving the treatment parameters;
the treatment head module comprises a xenon lamp, and after the xenon lamp pre-burns in the pre-burning circuit, the discharge switch is switched on to enable the energy storage circuit to output light pulses;
the xenon lamp receives the light pulse and then carries out pulse discharge, and the light emitted by the xenon lamp acts on the treatment part of the patient after optical treatment. In one embodiment, parameters such as energy density, pulse width and treatment time are set through the input module, after the main control module receives the set parameters, the pulse power supply module is controlled to discharge to the xenon lamp to cause xenon in the lamp tube to be ionized, the xenon converts electric energy into light energy in a high-intensity light radiation mode to be output, and the discharge process is a light pulse. The light pulse is through the light guide crystal in the treatment head and couplant effect and patient's lower eyelid department, produces heat effect and relevant treatment, improves the property of secretion and lipid, dredge obstructed meibomian gland, exterminates the bacterium, eliminates inflammation, reduces the reproduction of eyelid margin bacterium to the normal lipid composition that the promotion provided the lacrimal gland needs promotes the normal secretion of gland and the recovery of meibomian gland function, reaches the purpose of the dry eye that the dysfunction of treatment meibomian gland causes.
Specifically, the level conversion module comprises a DC-DC module, and a set voltage signal is input to the microcontroller by using the DC-DC module; the input module comprises a touch screen, and the level conversion module inputs a set direct-current voltage signal to the touch screen. In the embodiment, the input module is a human-computer interaction module, wherein the touch screen comprises user parameter input and display, and is controlled by a serial port of a microprocessor by adopting a serial port true color screen; the status indicator light is mainly used for displaying the running status of the equipment in real time and is controlled by the I/O of the microprocessor.
In the main control module, the microprocessor adopts a 32-bit microprocessor STM32F103 chip based on an ARM core of ST company, has the highest working frequency of 72MHz, is internally provided with 2 12-bit analog/digital converters A/D, 2 12-bit analog/digital converters D/A and up to 7 timers, and is provided with communication interfaces such as SPI, USB, CAN, IIC, USART and the like. The microprocessor controls the ultrasonic treatment head module to output ultrasonic signals meeting the requirements in the total technical index range of the equipment mainly according to treatment parameters set by a user, and enables the ultrasonic treatment head module to work stably and reliably.
In the level conversion module, a mode of converting alternating current into direct current is adopted to output a direct current 12V voltage signal to supply power to the touch screen on one hand, and a DC-DC module is adopted to output a direct current 3.3V voltage signal to provide power for the microcontroller on the other hand.
In one embodiment, as shown in fig. 4, the treatment head module further comprises a light guide crystal 504, a light collecting mirror 501 and a filter 503, the xenon lamp 502 is disposed between the light collecting mirror 501 and the filter 503, and the filter 503 is disposed between the xenon lamp 502 and the light guide crystal 504; light emitted by the xenon lamp 502 is reflected by the condenser lens 501 and is incident into the optical filter 503 in parallel, light with a specific wavelength obtained by filtering through the optical filter 503 enters the light guide crystal 504, and the light guide crystal 04 acts on a treatment part of a patient. In this embodiment, the xenon lamp 502 performs pulse discharge under the action of the pulse power supply, light emitted from the xenon lamp 502 is changed into uniform parallel light by the action of the condenser 501, passes through the optical filter, selects light with a specific wavelength for output, and finally acts on the treatment part of the patient through the light guide crystal 504. The light guiding crystal 504 has two roles: firstly, energy is transmitted, and secondly, the treatment part is cooled.
The xenon lamp 502 outputs incoherent pulsed light with the wavelength of 400 nm-1200 nm under the action of the pulse power supply module, and the condenser 501 reflects part of the light to converge on the light guide crystal because the light output by the xenon lamp 502 is transmitted in various directions. The light output by the xenon lamp 502 is selected by the optical filter, and then outputs pulse light with specific wavelength, for example, the wavelength of the output light is 560nm to 1200nm by using the optical filter with 560 nm; the light passing through the optical filter enters the light guide crystal 504, and the light guide crystal 504 enables the pulse light energy to be uniformly transmitted to the treatment part on one hand, and on the other hand, the light guide crystal is refrigerated through the semiconductor refrigerator due to the contact of the light guide crystal 504 and the treatment part, so that the purpose of refrigerating the treatment part is achieved. The light guide crystal 504 may be made of K9 glass, sapphire glass, or the like, and sapphire glass with good thermal conductivity is generally used.
In one embodiment, the therapeutic apparatus body further comprises an over-temperature protection module, the over-temperature protection module comprises a temperature sampling circuit and an over-temperature protection circuit, and the temperature sampling circuit is connected with the over-temperature protection circuit; the temperature sampling circuit is connected with the pulse power supply module and the treatment head module, the main control module comprises a microcontroller, and the over-temperature protection circuit is connected with the microcontroller; the temperature sampling circuit collects the temperatures of the pulse power supply module and the treatment head module and sends the collected information to the microcontroller; when the temperature that the temperature sampling circuit gathered is greater than the settlement temperature, microcontroller sends the instruction for over-temperature protection circuit, over-temperature protection circuit stops the output of therapeutic instrument body. In this embodiment, the temperature sampling circuit mainly collects the temperature of the power device in the optical cavity and the pulse power supply, and when the temperature in the optical cavity or the pulse power supply exceeds a set temperature, the over-temperature protection circuit stops the operation of the therapeutic apparatus, thereby playing a role of safety protection.
Specifically, the temperature acquisition circuit includes thermistor, thermistor install in the treatment head module, thermistor and leaded light crystal adjacent installation, the information that the temperature acquisition circuit will gather is given microcontroller, works as when the temperature that the temperature sampling circuit gathered is greater than the settlement temperature, microcontroller send the instruction for the excess temperature protection circuit, the excess temperature protection circuit stops the output of therapeutic instrument body. In this embodiment, microcontroller judges whether the temperature that temperature acquisition circuit gathered is qualified, and when the temperature that microcontroller gathered was greater than the safe temperature of settlement, microcontroller control protection circuit cut off the output, ensures patient's safety.
In one embodiment, the therapeutic apparatus body further comprises a cooling module, the cooling module comprises a semiconductor refrigeration unit and a water cooling unit, the semiconductor refrigeration unit is connected with the light guide crystal and a microcontroller, and the microcontroller adjusts the semiconductor refrigeration unit to enable the light guide crystal to keep a set temperature; the water cooling unit comprises a water cooling channel, and the water cooling channel is used for evacuating heat generated by the xenon lamp. In the embodiment, the microcontroller controls the refrigerating power of the semiconductor refrigerating device, the semiconductor refrigerating device refrigerates the light guide crystal, and the light guide crystal is contacted with the skin of the treatment part, so that the skin refrigerating effect is adjusted; the heat generated when the xenon lamp emits light is taken away through the circulating water cooling channel, so that the xenon lamp is cooled.
In one embodiment, the therapeutic apparatus body further comprises a pulse counting module, the pulse counting module comprises a data processing and displaying unit and an optical pulse counting unit, and the data processing and displaying unit is connected with the optical pulse counting unit; the data processing and displaying unit is connected with the microcontroller, and the light pulse counting unit is connected with the therapeutic head module. In this embodiment, the pulse counting module includes a light pulse counting unit, and the light pulse counting unit is connected to the data processing and displaying unit; the light pulse counting unit records the number of pulses output in the xenon lamp lighting process, and the number of the light pulses is displayed on a display screen of the treatment head module through data processing.
Specifically, the treatment head module further comprises a display screen, the data processing and displaying unit processes the data recorded by the light pulse counting unit and transmits the data to the display screen, and the display screen displays the number of the light pulses.
The utility model provides a physiotherapy instrument sets up energy density, pulse width and treatment time isoparametric through input module, and after master control module received the parameter of setting for, control pulse power module discharged the xenon lamp, arouses the interior xenon ionization of fluorescent tube, and xenon is the light energy output with the form of high strength ray radiation with the electric energy transformation, and this discharge process is a light pulse promptly. The light pulse is through the light guide crystal in the treatment head and couplant effect and patient's lower eyelid department, produces heat effect and relevant treatment, improves the property of secretion and lipid, dredge obstructed meibomian gland, exterminates the bacterium, eliminates inflammation, reduces the reproduction of eyelid margin bacterium to the normal lipid composition that the promotion provided the lacrimal gland needs promotes the normal secretion of gland and the recovery of meibomian gland function, reaches the purpose of the dry eye that the dysfunction of treatment meibomian gland causes.
The therapeutic instrument cools an optical cavity in a therapeutic head by water, carries out sapphire cooling on the skin contacted with a patient, simultaneously monitors the temperature of the optical cavity of the therapeutic head and the temperature of a power device in a pulse power supply, and ensures the safety of a system and the treatment comfort of the patient once a main circuit is cut off due to overtemperature; the treatment head has a pulse counting function, can display the number of pulses in real time, and has a power-down maintaining function.
The physiotherapy instrument provided in the utility model has the advantages of no wound, accurate control of output energy, short treatment time, no influence on normal work and life of patients, easy operation, good curative effect and the like, can be widely used for treating meibomian gland dysfunction, and especially for treating dry eye patients who are caused by meibomian gland dysfunction.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the novel structure can be smoothly implemented by a person with ordinary skill in the art according to the drawings and the description; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to those of the present invention, are also within the scope of the present invention.
Claims (10)
1. The xenon lamp discharge circuit is characterized by comprising a pre-burning circuit, a charging circuit, an energy storage circuit and a discharge switch, wherein the output end of the charging circuit is connected with the energy storage circuit, the output end of the energy storage circuit is connected with the discharge switch, the pre-burning circuit is connected with a xenon lamp, and the pre-burning circuit is used for providing a trigger high voltage for the xenon lamp and enabling the xenon lamp to be in a glow discharge state; when the xenon lamp is in a glow discharge state, the energy storage circuit enables the xenon lamp to discharge under the action of the discharge switch.
2. The xenon lamp discharge circuit according to claim 1, wherein the pre-burning circuit comprises a high voltage trigger part and a current maintaining part, the high voltage trigger part and the current maintaining part are simultaneously connected with the xenon lamp; wherein the content of the first and second substances,
the high-voltage trigger part comprises a fourth voltage, a second capacitor, a thyristor and a second transformer, the second capacitor is connected with the thyristor, the fourth voltage is used for charging the second capacitor, the second transformer comprises a primary coil and a secondary coil, and the second capacitor is connected with the primary coil; when the voltage at two ends of the second capacitor is equal to the fourth voltage, the controlled silicon is conducted, the second capacitor discharges through the primary coil, and the secondary coil induces high-voltage pulses, so that gas in the xenon lamp is ionized to form an ionization spark channel;
the current maintaining part comprises a third voltage, the third voltage is connected with two ends of the xenon lamp, and after the xenon lamp is ionized, the third voltage enables the xenon lamp to maintain a glow discharge state.
3. The xenon lamp discharge circuit according to claim 1 or 2, wherein the charging circuit is connected with an alternating current, the charging circuit comprises a first rectifying and filtering circuit, a second rectifying and filtering circuit, an inverter circuit and a first transformer, the alternating current is connected with the first rectifying and filtering circuit, the first rectifying and filtering circuit is connected with the inverter circuit, the inverter circuit is connected with the first transformer, the first transformer is connected with the second rectifying and filtering circuit, and a second direct current voltage with a set voltage value is obtained through the second rectifying and filtering circuit; the energy storage circuit comprises a first capacitor, and the direct-current voltage with the set voltage value is used for charging the first capacitor; when the voltage value of the first capacitor is smaller than the set voltage value, the charging circuit charges the first capacitor.
4. A physical therapy apparatus, which is characterized by comprising a therapy apparatus body, wherein the therapy apparatus body comprises the xenon lamp discharge circuit, the level conversion module, the input module, the main control module and the therapy head module, which are used according to claim 1, and the level conversion module is connected with the input module and the main control module; wherein the content of the first and second substances,
the input module is used for setting treatment parameters, the treatment parameters comprise energy density, pulse width and treatment time, the input module sends the set treatment parameters to the main control module, and the main control module sends instructions to the pre-burning circuit, the charging circuit or the discharging switch after receiving the treatment parameters;
the treatment head module comprises a xenon lamp, and after the xenon lamp pre-burns in the pre-burning circuit, the discharge switch is switched on to enable the energy storage circuit to output light pulses;
the xenon lamp receives the light pulse and then carries out pulse discharge, and the light emitted by the xenon lamp acts on the treatment part of the patient after optical treatment.
5. The physical therapy apparatus according to claim 4, wherein the therapy head module further comprises a light guide crystal, a condenser and a filter, the xenon lamp is disposed between the condenser and the filter, and the filter is disposed between the xenon lamp and the light guide crystal; light emitted by the xenon lamp is reflected by the condenser lens and is parallelly injected into the optical filter, light with specific wavelength obtained by filtering through the optical filter enters the light guide crystal, and the light guide crystal acts on the treatment part of the patient.
6. The physical therapy apparatus according to claim 4 or 5, wherein the therapy apparatus body further comprises an over-temperature protection module, the over-temperature protection module comprises a temperature sampling circuit and an over-temperature protection circuit, and the temperature sampling circuit is connected with the over-temperature protection circuit; the temperature sampling circuit is connected with the pulse power supply module and the treatment head module, the main control module comprises a microcontroller, and the over-temperature protection circuit is connected with the microcontroller; the temperature sampling circuit collects the temperatures of the pulse power supply module and the treatment head module and sends the collected information to the microcontroller; when the temperature that the temperature sampling circuit gathered is greater than the settlement temperature, microcontroller sends the instruction for over-temperature protection circuit, over-temperature protection circuit stops the output of therapeutic instrument body.
7. The physical therapy apparatus according to claim 5, wherein the therapy apparatus body further comprises a cooling module, the cooling module comprises a semiconductor refrigeration unit and a water cooling unit, the semiconductor refrigeration unit connects the light guide crystal and the microcontroller, and the microcontroller adjusts the semiconductor refrigeration unit to maintain the light guide crystal at a set temperature; the water cooling unit comprises a water cooling channel, and the water cooling channel is used for evacuating heat generated by the xenon lamp.
8. The physical therapy apparatus according to claim 7, wherein the therapy apparatus body further comprises a pulse counting module, the pulse counting module comprises a data processing and displaying unit and a light pulse counting unit, and the data processing and displaying unit is connected with the light pulse counting unit; the data processing and displaying unit is connected with the microcontroller, and the light pulse counting unit is connected with the therapeutic head module.
9. The physical therapy apparatus according to claim 8, wherein said therapeutic head module further comprises a display screen, said data processing and displaying unit processes the data recorded by said light pulse counting unit and transmits the data to said display screen, and said display screen displays the number of light pulses.
10. The physical therapy apparatus according to claim 6, wherein the temperature acquisition circuit comprises a thermistor, the thermistor is mounted in the therapy head module, the thermistor is mounted adjacent to the light guide crystal, the temperature acquisition circuit transmits acquired information to the microcontroller, and when the temperature acquired by the temperature sampling circuit is higher than a set temperature, the microcontroller transmits an instruction to the over-temperature protection circuit, and the over-temperature protection circuit stops the output of the therapy apparatus body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922193785.XU CN211584922U (en) | 2019-12-09 | 2019-12-09 | Xenon lamp discharge circuit and physical therapy instrument |
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| CN201922193785.XU CN211584922U (en) | 2019-12-09 | 2019-12-09 | Xenon lamp discharge circuit and physical therapy instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001090A (en) * | 2019-12-09 | 2020-04-14 | 中国科学院苏州生物医学工程技术研究所 | Xenon lamp discharge method, circuit and physical therapeutic apparatus |
| CN116759881A (en) * | 2023-06-28 | 2023-09-15 | 吉林省科英医疗激光有限责任公司 | Pulse laser power supply for realizing OPT uniform square wave output |
-
2019
- 2019-12-09 CN CN201922193785.XU patent/CN211584922U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001090A (en) * | 2019-12-09 | 2020-04-14 | 中国科学院苏州生物医学工程技术研究所 | Xenon lamp discharge method, circuit and physical therapeutic apparatus |
| CN116759881A (en) * | 2023-06-28 | 2023-09-15 | 吉林省科英医疗激光有限责任公司 | Pulse laser power supply for realizing OPT uniform square wave output |
| CN116759881B (en) * | 2023-06-28 | 2024-03-12 | 吉林省科英医疗激光有限责任公司 | Pulse laser power supply for realizing OPT uniform square wave output |
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Address after: 215163 Suzhou 88 high tech Zone, Jiangsu science and Technology City Patentee after: Suzhou Institute of Biomedical Engineering and Technology Chinese Academy of Sciences Patentee after: Nanjing Guoke Precision Medical Technology Co.,Ltd. Address before: 215163 Suzhou 88 high tech Zone, Jiangsu science and Technology City Patentee before: Suzhou Institute of Biomedical Engineering and Technology Chinese Academy of Sciences Patentee before: NANJING GUOKE MEDICAL TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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