CN201104951Y - Amblyopia Therapeutic Apparatus - Google Patents

Abstract

The utility model relates to an amblyopia therapy instrument with triple visual function, belonging to the technical field of ophthalmology medical instrument, comprising a base, a bracket and a body; wherein, the base is connected with the casing of the body through the bracket, a binocular eyepiece, a convex lens, a stereogram, a dodging disc and a backlight source are positioned inside the casing of the body and the backlight source is LED backlight source; the amblyopis therapy instrument has the functions of Haidinger brush training, red light glitter training, fine level visual contrast training, light barrier training, eyesight exercise, photogene, as well as triple visual training function, i.e. simultaneous vision, stereopsis and fusion function; wherein, the eyesight exercise can increase visual acuity of the patient while triple visual training can recover and rebuilt the stereovision.

Description

Amblyopia Therapeutic Apparatus

【Technical field】

The utility model belongs to the technical field of ophthalmic medical equipment, in particular to an amblyopia treatment instrument with a three-level vision function.

【Background technique】

Amblyopia refers to that the inside and outside of the eyeball has no organic lesions after inspection, but the vision cannot be corrected to a normal visual state. Amblyopia can be divided into: strabismic amblyopia, anisometropic amblyopia, ametropia amblyopia, form deprivation amblyopia, congenital amblyopia. At present, there is a relatively high proportion of amblyopia patients in children. The greatest harm of amblyopia to patients is that patients not only have low binocular or monocular vision, but also do not have perfect binocular vision function and fine stereo vision. Therefore, it is necessary to strengthen the training of eyes suffering from amblyopia through amblyopia treatment equipment, and artificially promote the development of their visual function, so as to achieve a normal visual state.

Current amblyopia treatment devices can be divided into four categories according to their functions: amblyopia treatment devices that stimulate the function of retinal macular pyramidal cells (such as red flash devices, red glass sheets, and afterimage enhancement devices), and amblyopia treatment devices that increase blood circulation in the macular area Apparatus (such as low-power He-Ne laser apparatus), amblyopia therapeutic apparatus (such as visual physiological stimulator) that stimulates the function of brain central cells, multifunctional amblyopia therapeutic apparatus or comprehensive amblyopia therapeutic apparatus that combines two or more stimulating functions.

Because the treatment principles of the above-mentioned various amblyopia treatment instruments are all based on improving the visual excitability of the retinal macular fovea or the visual center, it does not involve direct vision training. In order to improve vision, it is usually necessary to carry out fine vision training for patients, and for the treatment of amblyopia, the improvement of vision is not the ultimate goal, but the recovery of stereo vision is the ultimate goal. Therefore, the curative effect of above-mentioned amblyopia treatment instrument also has defect to a certain extent; The process did not fully consider the participation of others such as the parents of children; it was impossible to train the three-level vision functions such as simultaneous vision, fusion function, and stereo vision for both eyes; the design of the pictures used in the training did not fully consider the diversity. Sexuality is poor, unable to meet the needs of patients, especially the curious psychological state of children.

Chinese Patent No. ZL200520120630.9 discloses a multifunctional amblyopia treatment device, which includes a lens barrel with a flat glass slide inside, a casing, a light source, a base, a control panel installed on the upper end surface of the base, and a circuit board installed in the inner cavity of the base. A finite light tube is installed under the lens barrel, and a convex lens is installed in the axial direction in the light limiting tube. There is a film feeding mechanism inside the casing, and the film is installed on the reel of the film feeding mechanism. The bottom of the film conveying mechanism is provided with a condenser tube perpendicular to the film. The upper end of the condenser tube is installed with a convex lens along the axial direction, and the lower end is installed with a frosted sheet along the axial direction. The light source is installed at the rear of the base and faces the frosted. There are following shortcoming in above-mentioned patented product: (1) when it adopts binocular tube, picture adopts reel type, and the picture that reel rolls out is on the midline of two eyepiece tubes, therefore, two eyes can only see at the same time. A picture makes it impossible for both eyes to perform simultaneous vision, fusion and stereopsis training; (2) the light source adopts the usual incandescent light source in this field. When red light is needed, a red filter is placed in front of the illuminant to form red light. However, the light source provided by it has weak stimulus intensity to the retina, and the error of the red light wavelength is large, so it cannot be accurately positioned at the optimal wavelength of red light at 640nm (the optimal wavelength for amblyopia treatment), and the treatment effect is poor.

【Content of invention】

The utility model discloses an amblyopia therapeutic apparatus with tertiary vision function, which solves the technical problems of lack of tertiary vision function, few functions and poor curative effect in the existing amblyopia therapeutic apparatus.

In order to solve the above-mentioned technical problems, the technical scheme adopted in the utility model is as follows: the amblyopia treatment instrument includes a base, a support and a main body, the base is connected with the housing of the main body through the support, and a binocular tube and a convex lens are arranged in the housing of the main body. , Picture sheet, uniform light sheet and backlight, the backlight is LED backlight.

In the amblyopia therapeutic apparatus, the LED backlight source is composed of a red LED and a white LED, and the two LEDs do not emit light at the same time.

The described amblyopia therapeutic apparatus installs a convex lens, a picture piece, a uniform light piece, and a backlight sequentially along the axial direction of each eyepiece tube; a picture piece socket is arranged inside the housing, and the picture piece is inserted into the picture piece socket.

In the amblyopia treatment device, at least one kind of fine vision training picture, visual stimulation training picture or three-level vision training picture is provided for the picture.

In the amblyopia therapeutic apparatus, the shell of the main body is connected to the support in a rotational manner, and the pitch angle of the main body can be adjusted.

In the amblyopia therapeutic apparatus, a control circuit is arranged in the base, and the base is connected to a remote controller.

The comprehensive therapeutic apparatus for amblyopia has a display screen or a control keyboard on the remote controller.

In the amblyopia treatment apparatus, two Haidinger brushes are arranged between the convex lens and the picture sheet, and the two Haidinger brushes correspond to the binocular tubes respectively.

Said amblyopia therapeutic apparatus, the housing is formed by fastening an upper shell and a lower shell, and a flip cover is arranged on the top of the upper shell.

Through the technical scheme of the utility model, the amblyopia treatment instrument has three levels of vision training functions besides Haidinger brush training, red light flashing training, fine-level vision contrast training, grating training, fine eyesight training, and afterimage training. , including simultaneous vision, stereo vision, and fusion functions. It not only improves the vision of amblyopia patients through fine vision training, but also restores and establishes the stereo vision of amblyopia patients through three-level vision function training.

The amblyopia treatment device realizes the three-level vision function by setting double pictures, that is, the pictures are respectively installed in the axial direction of the binocular lens barrel, and restores and establishes the stereo vision of amblyopia patients through simultaneous vision, fusion function, and stereo vision training. Simultaneous vision is the basis of binocular vision. Through the training of this amblyopia treatment device, it can help patients receive visual information from both eyes in a balanced manner, establish normal simultaneous vision function, prevent the recurrence of amblyopia, and lay a foundation for the establishment of fusion function and stereo vision function. Lay the groundwork. Through fusion training, it can improve the coordinated movement ability of the eyes, increase the fusion range, correct mild strabismus, improve visual skills, effectively relieve fatigue, and lay the foundation for the establishment of stereoscopic vision. Stereoscopic vision is the most advanced binocular vision function. It is a unique visual function of a few advanced creatures. Through training, normal stereoscopic vision can be established to create conditions for fine manipulation.

In addition, the amblyopia therapeutic apparatus of the present invention adopts a backlight source combining red LEDs and white LEDs, and only red LEDs or white LEDs are lit when in use. In this way, not only the light conversion is convenient, but also the LED light source is strong. Since the LED light source is a cold light source, the stimulation to the retina is more in line with the medical requirements and the treatment effect is good; long life.

Finally, the amblyopia treatment device of the present utility model is very interesting. Other people, such as parents of amblyopia children, can also participate in the treatment. It is a comprehensive amblyopia treatment device that can significantly improve the vision of amblyopia patients and restore stereo vision.

【Description of drawings】

Fig. 1 is a structural sectional view of the utility model amblyopia therapeutic apparatus.

Fig. 2 is another structural sectional view of the utility model amblyopia therapeutic apparatus.

Fig. 3 is a perspective view of the utility model amblyopia therapeutic apparatus.

Fig. 4 is a side view of the utility model amblyopia therapeutic apparatus.

Fig. 5 is a schematic diagram of the control circuit of the present invention.

【Detailed ways】

Below in conjunction with accompanying drawing, the utility model is described in detail.

As shown in Figures 1-4, the amblyopia therapeutic apparatus includes a base 1, a support 2, and a main body 3, and the base 1 is connected to the shell 4 of the main body 3 through the support 2. The housing 4 is provided with binocular barrels, that is, two eyepiece barrels 11, the eyepiece barrels 11 are connected to the beam splitter barrel 12, and a convex lens 17 is installed between them. A Haidinger brush 19 , a picture socket 18 , a uniform light sheet 20 , and a backlight source 15 are sequentially arranged inwardly along the axial direction of the beam splitter barrel 12 . The backlight source 15 and the motor 21 are electrically connected with the control circuit board 5 , and the motor 21 drives the Haidinger brush 19 . Picture 14 is double picture, and double picture corresponds to binocular lens tube respectively, and it is inserted in picture socket 18, so that change picture, picture can be fine vision training picture or three grades as training picture. Each backlight source 15 is made up of several red LEDs and white LEDs, and during work, only red LED or white LED is bright;

The casing 4 is connected to the support 2 in a rotational manner, so as to adjust the pitch angle of the eyepiece barrel in the main body 3 . The housing 4 is formed by fastening the upper shell 22 and the lower shell 23. The upper shell 22 is provided with a rotary flip cover 24, which can be opened to insert the pictures 14. Therefore, it is very easy to change the pictures of this amblyopia treatment apparatus. Housing 4 side offers a hole 25, can place a glass (not drawn among the figure) between convex lens 17 and picture 14, when treating, adopt indicating stick to stretch into side opening 25, indicating stick follows picture indication, fully Mobilize the patient's hand, brain and eye synchronization training, enhance their perception and coordination function, and achieve better therapeutic effect.

The base 1 is fixedly connected with the support 2, and the base 1 is provided with a control circuit board 5, and an LED indicator light 7 and a horn 6 are provided on the surface. The base 1 is electrically connected to the controller 16 through the interface 8 , and the controller 16 is provided with control keys 9 and a liquid crystal display 10 .

Below in conjunction with accompanying drawing 5, describe the control circuit principle of the utility model amblyopia therapeutic apparatus in detail:

1. Central control unit: use single-chip microcomputer to realize the control of the whole circuit. Due to the high integration, strong functionality, and good versatility of the single-chip microcomputer, especially its unique advantages such as small size, light weight, low energy consumption, cheap price, high reliability, strong anti-interference ability, and convenient use, it has become a measurement tool at present. The preferred model in the control application system and the key component of new electronic products.

Using the powerful control function of single chip microcomputer, in this control circuit, it is used to realize the overall control of light adjustment circuit, motor control circuit, liquid crystal display circuit and voice prompt circuit, and at the same time receive the control signal input by the keyboard to realize simple human-computer interaction .

2. Backlight control circuit: Backlight control includes the adjustment of light intensity and flicker frequency. This circuit uses the DAC0832 chip and the operational amplifier chip LM324 to realize the adjustment of the backlight. The DAC0832 is a digital-to-analog conversion chip. It receives the voltage control data and the corresponding control signal of the single-chip microcomputer to realize the adjustment of the output voltage, so as to realize the conversion of different light intensities. . DAC0832 can change the output voltage from 0 to a specific value. When the output voltage is 0, the light will be off. Otherwise, when the output voltage reaches a certain value, the light will be on. The single-chip voltage control data is output at a certain frequency to realize the flickering of the light.

3. Haidinger brush control circuit: The main components of the Haidinger brush control circuit are also DAC0832 and operational amplifier LM324, the difference is that the output voltage is positive or negative. Since DAC0832 has the function of bipolar voltage output, supplemented by several specific voltage adjustment resistors, it is easier to realize the positive and negative changes of the output voltage. The motor controlled by this control circuit is a DC geared motor, which can realize positive and negative rotation of the motor according to the positive and negative input voltage.

4. LCD display circuit: The main function of the LCD screen is to display various status prompts for user operations, allowing users to operate more intuitively. The LCD screen adopts 128*64 dot matrix LCD, which is directly driven by a single-chip microcomputer, and the single-chip microcomputer updates the screen display in real time according to the user's operation status.

5. Voice control circuit: The main component of the voice control circuit is a segmented voice playback chip. The voice that needs to be prompted during user operation is segmented into the chip, and the chip is directly controlled by a single-chip microcomputer. When voice prompts are required, the program Make the single-chip microcomputer output the control signal and the address signal of the corresponding voice segment to the voice chip, and the voice chip selects the corresponding voice segment to play according to these signals.

6. Keyboard input circuit: The keyboard is the most commonly used device for human-computer interaction. In this control circuit, the user needs to select each mode of the circuit through the keyboard. With the display of the LCD screen, the menu selection function can be realized.

7. Power supply circuit: Since the power supply required by the circuit is not a single voltage, different voltages need to be supplied. This circuit divides and stabilizes the input high voltage to realize the distribution of different voltages. It mainly uses three-stage voltage regulator chips, and uses different types of voltage regulator chips to generate different voltage sources, and then uses resistors to adjust the voltage output to reach the required voltage. value.

Claims (9)

1. Amblyopia therapeutic apparatus, comprising a base, a support and a main body, the base is connected to the shell of the main body through the support, and the shell of the main body is equipped with a binocular lens tube, a convex lens, a picture sheet, a uniform light sheet and a backlight source, and is characterized in that, The backlight source is an LED backlight source. 2. The treatment apparatus for amblyopia according to claim 1, wherein the LED backlight is composed of red LED and white LED, and the two LEDs do not emit light at the same time. 3. The treatment apparatus for amblyopia according to claim 1, wherein a convex lens, a picture piece, a uniform light piece, and a backlight are sequentially installed along the axial direction of each eyepiece tube; a picture piece socket is provided inside the housing, and the picture piece is inserted into the picture piece socket. 4. The treatment device for amblyopia according to claim 1, characterized in that said picture is at least one kind of fine vision training picture, visual stimulation training picture or three-level vision training picture. 5. The treatment apparatus for amblyopia according to claim 1, characterized in that the casing of the main body is connected to the support in a rotational manner, and the pitch angle of the main body can be adjusted. 6. The treatment apparatus for amblyopia according to claim 1, wherein a control circuit is installed in the base, and the base is connected to a remote controller. 7. The comprehensive treatment apparatus for amblyopia according to claim 6, characterized in that the remote controller has a display screen or a control keyboard. 8. The treatment apparatus for amblyopia according to claim 1, characterized in that two Haidinger brushes are arranged between the convex lens and the picture, and the two Haidinger brushes correspond to the binocular tubes respectively. 9. The treatment apparatus for amblyopia according to claim 1, characterized in that the housing is formed by fastening an upper shell and a lower shell, and a flip cover is arranged above the upper shell.

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