CN211024811U - Intermediate frequency pulse therapeutic instrument - Google Patents
Intermediate frequency pulse therapeutic instrument Download PDFInfo
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- CN211024811U CN211024811U CN201921584533.3U CN201921584533U CN211024811U CN 211024811 U CN211024811 U CN 211024811U CN 201921584533 U CN201921584533 U CN 201921584533U CN 211024811 U CN211024811 U CN 211024811U
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Abstract
The utility model relates to an intermediate frequency pulse therapeutic instrument, including control module and analog output module, control module includes control chip and connects control button and the display screen on control chip respectively, analog output module includes AC-DCEMC wave filter, linear voltage stabilizing circuit, DC-DC keeps apart converter, work chip and connects PWM simulation DA and analog switch on work chip, AC-DCEMC wave filter is arranged in converting external 220V voltage into 5V voltage and inputing linear voltage stabilizing circuit and DC-DC respectively and keep apart the converter. The intermediate frequency pulse therapeutic instrument is based on a high-precision intermediate frequency pulse signal generating device, generates symmetrical positive and negative pulse voltage by taking the chip as a core, and activates peripheral muscles of eyes such as catalepsy muscle, so that cornea and crystalline lens can be effectively adjusted according to objects to be viewed, and can be approximately linearly adjusted from zero to full range, the adjusting range is wide, the fully symmetrical positive and negative pulse voltage is generated by using an analog switch, the stimulation to a human body is small, and the therapeutic effect is good.
Description
Technical Field
The utility model belongs to the field of medical equipment, concretely relates to intermediate frequency pulse therapeutic instrument for eye.
Background
In recent years, students are increasingly stressed in learning, and the pressures of academic industry and education to be tried enable teenagers to be in a short-distance continuous learning state for a long time. The incidence of myopia in China is directly increased, and myopia is a major public health problem affecting the eye health of the national people, especially teenagers. The most common ophthalmic diseases are listed as one of three diseases in the world, and the incidence rate of myopia in the population of China is about 33 percent and is 1.5 times of the average level of the world (accounting for 22 percent of the total population).
Some treatment relieving equipment for myopic patients exists in the market at present, but pulse voltage regulation in common treatment equipment in the market is poor in linearity, small in range and poor in symmetry.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an intermediate frequency pulse therapeutic apparatus with simple structure and reasonable design for solving the problems.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
an intermediate frequency pulse therapeutic instrument comprises a control module and an analog output module, wherein the control module comprises a control chip, and a control key and a display screen which are respectively connected with the control chip, the analog output module comprises an AC-DCEMC filter, a linear voltage stabilizing circuit, a DC-DC isolating converter, a working chip, a PWM analog DA and an analog switch which are connected with the working chip, the AC-DCEMC filter is used for converting an external 220V voltage into a 5V voltage and respectively inputting the 5V voltage into the linear voltage stabilizing circuit and the DC-DC isolating converter, the linear voltage stabilizing circuit is used for stabilizing the 5V voltage to 3.3V voltage and inputting the 5V voltage into the working chip, the DC-DC isolating converter is connected with the analog switch, the analog switch outputs a voltage of plus or minus 15V and forms an intermediate frequency positive and negative pulse voltage which can be regulated in a full range under the signal control of, and the working chip is in serial communication connection with the control chip.
As the utility model discloses a further optimization scheme, the control button is including opening stop key, amazing degree adjustment key, intensity increase key, intensity reduction key, time increase key, time reduction key, mode selection key A and mode selection key B, the below of display screen is located to the control button.
As a further optimization scheme of the utility model, the display screen is TFT-L CD liquid crystal display, and shows on the display screen and has the content corresponding with the control button.
As the utility model discloses a further optimization scheme, be equipped with the power that is shaded on the display screen and provide the circuit.
As a further optimization scheme of the utility model, but the bearing output body that the full scale adjusted intermediate frequency positive and negative pulse voltage is the electrode slice.
As a further optimization scheme of the utility model, the quantity of analog switch, PWM simulation DA and electrode piece is two sets of.
The beneficial effects of the utility model reside in that:
1) the utility model adopts the independent research and development technology based on the high-precision intermediate frequency pulse signal generating device, and the chip is used as the core to generate symmetrical positive and negative pulse voltage to activate peripheral muscles of eyes such as ciliary muscle and the like, thereby effectively adjusting cornea and crystalline lens according to the object to be viewed;
2) the utility model relates to a can follow zero to the approximate linear regulation of full scale, and accommodation range is wide, uses analog switch to produce the positive and negative impulse voltage of full symmetry, and is little to human irritability, and treatment is effectual.
Drawings
FIG. 1 is an overall circuit diagram of the present invention;
fig. 2 is a circuit diagram of the AC-DCEMC filter of the present invention;
FIG. 3 is a diagram of a linear voltage regulator circuit according to the present invention;
fig. 4 is a circuit diagram of the DC-DC isolated converter of the present invention;
FIG. 5 is a circuit diagram of the working chip of the present invention;
fig. 6 is a circuit diagram of the PWM analog DA of the present invention;
fig. 7 is a circuit diagram of the analog switch of the present invention;
fig. 8 is a circuit diagram of the control chip of the present invention;
fig. 9 is a circuit diagram of the control button of the present invention;
fig. 10 is a circuit diagram of the display panel of the present invention;
fig. 11 is a circuit diagram of the backlight power supply of the display panel of the present invention;
fig. 12 is a circuit diagram of serial communication according to the present invention.
In the figure: 101. an AC-DCEMC filter; 102. a DC-DC isolation converter; 103. a linear voltage stabilizing circuit; 201. a working chip; 202. PWM simulates DA; 203. an analog switch; 204. the medium-frequency positive and negative pulse voltage can be adjusted in a full range; 301. a control chip; 302. a control key; 303. a display screen.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
As shown in fig. 1-8, an intermediate frequency pulse therapeutic apparatus comprises a control module and an analog output module, the control module comprises a control chip 301, and a control button 302 and a display screen 303 connected to the control chip 301, respectively, the model of the control chip 301 is STM32F767IGT6, the analog output module comprises an AC-DC emc filter 101, a linear voltage stabilizing circuit 103, a DC-DC isolating converter 102, a working chip 201, and a PWM analog DA202 and an analog switch 203 connected to the working chip 201, the number of the analog switch 203, the number of the PWM analog DA202 and the number of the electrode pads are two, the PWM analog DA202 is connected to a DC interface on the working chip 201, the DC interfaces are two, the two PWM analog DA202 components are connected to convert digital signals into analog signals, the AC-DC emc filter 101 is used for converting an external 220V voltage into a 5V voltage and inputting the voltage into the linear voltage stabilizing circuit 103 and the DC-DC isolating converter, the linear voltage stabilizing circuit 103 is used for stabilizing a voltage of 5V to 3.3V and inputting the voltage into the working chip 201, the model of the working chip 201 is GD32F103C8T6, the DC-DC isolation converter 102 is connected with the analog switch 203, the analog switch 203 outputs a voltage of plus or minus 15V and forms a full-scale adjustable intermediate-frequency plus or minus pulse voltage 204 under the signal control of the PWM analog DA202, as shown in fig. 12, the working chip 201 is in serial communication connection with the control chip 301, so that signals can be transmitted between the two chips, the signals are transmitted to the control chip 301 through the control key 302, the control chip 301 controls the working chip 201, and the working chip 201 transmits a working condition to the control chip 301 after controlling the working circuit and specifically displays the working condition in the display screen 303;
the chip is taken as a core, the working chip 201 generates standard frequency PWM to provide a medium frequency pulse mode for a product, then filtering is generated through the PWM analog DA202, operational amplifier generates 0 to full range analog voltage, pulse voltages with different amplitudes can be provided for the product, the chip controls the analog switch 203 to generate full-symmetry positive and negative voltages, the working chip 201 adjusts the frequency to generate standard medium frequency pulse, the full range linear adjustment of the analog voltage is realized, the generated full-symmetry pulse voltage has small stimulation to a human body, and the treatment effect is strong;
as shown in fig. 9, the control keys 302 include a start/stop key, a stimulation adjustment key, an intensity increase key, an intensity decrease key, a time increase key, a time decrease key, a mode selection key a, and a mode selection key B, the control keys 302 are disposed below the display screen 303, the time increase or decrease keys play a timing role, the time duration of the operation can be controlled, and the mode combination can generate 9 different operation modes.
As shown in fig. 10, the display 303 is a TFT-L CD liquid crystal display, and the display 303 displays contents corresponding to the control keys 302;
as shown in fig. 11, a backlight power supply circuit is provided on the display screen 303;
can adjust bearing of positive and negative pulse voltage 204 of intermediate frequency full scale output body be the electrode slice, with the position of electrode slice attached in the eye both sides during use, activate peripheral muscles of eyes such as the ciliary muscle of rigidity after the pulse is amazing to make cornea and crystalline lens can effectively adjust according to the object of looking, the utility model discloses the technical scheme that records can produce nine kinds of treatment prescriptions through adjusting. The prescription pulse parameters are as follows:
prescription watch
Test example 1
Through the utility model discloses the product of record compares data around using myopia patient, and the data list that the number of times exceeded ten is used in the extraction:
comparative example 1
The data of the myopia patients before and after use are compared through the existing recorded product, and a data list with more than ten use times is extracted:
according to the data contrast in experiment list 1 and the comparative example 1, the utility model discloses the product of record uses the back, and is relatively better with current equipment to myopia patient's treatment.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (6)
1. The utility model provides an intermediate frequency impulse therapeutic instrument, includes control module and analog output module, control module includes control chip (301) and connects control button (302) and display screen (303) on control chip (301) respectively, its characterized in that: the analog output module comprises an AC-DCEMC filter (101), a linear voltage stabilizing circuit (103), a DC-DC isolation converter (102), a working chip (201), a PWM analog DA (202) and an analog switch (203), wherein the PWM analog DA (202) and the analog switch (203) are connected to the working chip (201), the AC-DCEMC filter (101) is used for converting an external 220V voltage into a 5V voltage and inputting the 5V voltage into the linear voltage stabilizing circuit (103) and the DC-DC isolation converter (102) respectively, the linear voltage stabilizing circuit (103) is used for stabilizing the 5V voltage to 3.3V and inputting the 5V voltage into the working chip (201), the DC-DC isolation converter (102) is connected with the analog switch (203), the analog switch (203) outputs a voltage of plus or minus 7.3V and forms a full-scale adjustable intermediate-frequency plus or minus pulse voltage (204) under the signal control of the PWM analog DA (202), the working chip (201) is in serial communication connection with the control chip (301).
2. The medium frequency pulse therapeutic apparatus according to claim 1, wherein: the control keys (302) comprise a start-stop key, a stimulation degree adjusting key, an intensity increasing key, an intensity reducing key, a time increasing key, a time reducing key, a mode selecting key A and a mode selecting key B, and the control keys (302) are arranged below the display screen (303).
3. The intermediate frequency pulse therapeutic apparatus according to claim 2, wherein the display screen (303) is a TFT-L CD liquid crystal display screen, and the display screen (303) displays the content corresponding to the control key (302).
4. The medium frequency pulse therapeutic apparatus according to claim 1, wherein: and a backlight power supply circuit is arranged on the display screen (303).
5. The medium frequency pulse therapeutic apparatus according to claim 1, wherein: the bearing output body capable of adjusting the intermediate-frequency positive and negative pulse voltage (204) in a full-scale manner is an electrode plate.
6. The IF pulse therapeutic apparatus according to claim 5, wherein: the number of the analog switches (203), the number of the PWM analog DA (202) and the number of the electrode plates are two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921584533.3U CN211024811U (en) | 2019-09-23 | 2019-09-23 | Intermediate frequency pulse therapeutic instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921584533.3U CN211024811U (en) | 2019-09-23 | 2019-09-23 | Intermediate frequency pulse therapeutic instrument |
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| Publication Number | Publication Date |
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| CN211024811U true CN211024811U (en) | 2020-07-17 |
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| CN201921584533.3U Active CN211024811U (en) | 2019-09-23 | 2019-09-23 | Intermediate frequency pulse therapeutic instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110464988A (en) * | 2019-09-23 | 2019-11-19 | 安徽科大视力科技有限公司 | A kind of medium-frequency pulse therapeutic equipment |
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2019
- 2019-09-23 CN CN201921584533.3U patent/CN211024811U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110464988A (en) * | 2019-09-23 | 2019-11-19 | 安徽科大视力科技有限公司 | A kind of medium-frequency pulse therapeutic equipment |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200814 Address after: No.2, Gangzi village, Jiangdian village, yuanzhai Town, Yingdong District, Fuyang City, Anhui Province Patentee after: Wang Tingting Address before: Room 607, building 1, Yunliu garden, intersection of Fuyang Road and Longtan Road, Luyang District, Hefei City, Anhui Province 230001 Patentee before: Anhui Keda Vision Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210806 Address after: 230000, floor 6, building 3, Yichi Science Park, No. 66, Yanzihe Road, high tech Zone, Hefei, Anhui Province Patentee after: Shiguda Health Industry Co.,Ltd. Address before: 236151 No. 2, Gangzi village, Jiangdian village, yuanzhai Town, Yingdong District, Fuyang City, Anhui Province Patentee before: Wang Tingting |
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| TR01 | Transfer of patent right |