RU160421U1 - DEVICE FOR REDUCING VISUAL EXCESSION FROM A COMPUTER MONITOR DURING THE WORKS FOR RESTORING DISTURBED MENTAL MENTAL FUNCTIONS - Google Patents

Abstract

1. A device to reduce visual fatigue from a computer monitor during classes to restore impaired mental functions, containing a transparent base made of plexiglass and having dimensions corresponding to the dimensions of a computer monitor, the upper part of the base is connected by hinges to a plastic plate that secures the device to the upper part of the computer monitor, and two handles are mounted in the lower part of the base, allowing you to lift the device, making it accessible to perception in e space of a computer monitor, characterized in that the transparent base is made in the form of two transparent sheets of plexiglas 3-5 mm thick located parallel to each other, rigidly interconnected by means of plastic gaskets 2-3 mm thick and creating a gap of 2 between plexiglass sheets -3 mm, in which the protective filter is movably mounted in the form of a transparent file containing a sheet of thick paper with transparent regions of various shapes deposited on it or a transparent film with a non-transparent coating achnym white background and the individual transparent areas in the form of geometric figures and characters, and a rectangular plate attached to the top of the sheet of plexiglass, immediately adjacent to the computer monitoru.2. The device according to claim 1, characterized in that in the case of using a widescreen monitor, in the left and right parts of the device, between the sheets of plexiglass in the gap place opaque strips of paper.

Description

This useful model relates to the field of medicine, to the section of neurology and neuropsychology and can be used in the departments of neurorehabilitation of neurological and neurosurgical clinics when conducting classes in restorative education with patients in a neurological clinic who have disorders of various mental functions (speech, spatial perception, memory, etc.). ) due to organic brain damage.

Currently, in the practice of restoring impaired mental functions, restorative computer programs have become more widespread, which are gradually replacing traditional printed materials intended for working with patients. This trend is especially clearly observed in foreign countries.

However, due to the ergonomic features of a computer monitor, working with it is more tiring than working with traditional print materials. This is primarily due to the fact that while working behind the monitor, a powerful light stream is directed into the eyes of a person passing through the liquid crystal layer in which the image is formed. The luminous flux of white color is especially strong in its brightness, since it, passing through the layer forming the image, does not meet any color barrier in its path. The negative point is that the person working behind the computer monitor, unlike the TV, is at a fairly close distance from it, where the light flux is quite strong.

As a result of working behind a computer monitor, a person has a computer visual syndrome (ComputerVisionSyndrome, CVS). CVS is a specific visual impairment in people who spend a lot of time in front of a computer screen. It is believed that this syndrome occurs daily in 40% of people working on a computer, and periodically in 92% of users. Often the inability to properly and rationally organize the workplace (glare on the monitor screen from external sources, the wrong distance from the eyes to the screen, poor choice of colors, excessively large screen brightness) exacerbate the situation (Medical online reference book. Visual fatigue syndrome (Asthenopia), found 15.10. 2015 on the Internet: http://www.24farm.ru/oftalmologiya/sindrom_zritelnogo_utomlenia/).

As for patients in a neurological clinic with organic brain lesions, their visual fatigue occurs even more quickly, and they can work or work on a computer monitor only for a very limited time.

All this leads to problems associated with conducting classes in restorative education, in which computer methods are increasingly used.

Many foreign technologies of rehabilitation education are entirely based on the use of computer programs. For example, the German computer program “COGPAK” is known, which includes a significant number of various computer tasks and exercises designed to work with various mental functions: memory, attention, visual perception, speech function, etc. (COGPAK, Found October 15, 2015 on the Internet: http://www.cogpack.de).

This approach leads to the fact that prolonged work of patients behind a computer monitor negatively affects both the process of restoration of impaired mental functions, and in general can lead to a deterioration in the general well-being of patients.

Therefore, for the wider use of computer technology in the practice of restoring impaired mental functions, it is important to reduce the power of the light flux directed into the patient’s eyes.

Moreover, the decrease in the luminous flux power due to the presentation of images on a dark background has negative sides due to the fact that images presented on a dark background are much worse recognized by patients. So, for example, the white letters of a text presented on a black background cause certain problems when reading even in healthy people.

This implies the need to develop technical devices that reduce visual fatigue in the process of working behind a computer monitor.

A device is known for reducing visual fatigue while working at a computer to restore a disturbed reading process in patients of a neurological clinic, containing a transparent base made of plexiglass and measuring the size of a computer monitor, while guides are inserted on the left and right sides of the base, into which two light-colored plastic curtains containing protrusions for moving them; the upper part of the base is hinged with a plastic plate astinum, which secures the device to the upper part of the computer monitor, and two handles are mounted in the lower part of the base, allowing the device to be lifted, making the entire space of the computer monitor accessible to perception (Patent RU 153546, July 27, 2015). In this case, the curtains cover most of the monitor, leaving only a narrow strip in the center, in which the patient is presented with words or texts. Due to this, the luminous flux from the monitor is reduced several times, and the patient gets the opportunity for longer classes at the computer monitor.

However, this device is intended only to automate the reading process and increase its speed, and cannot be used in working with other mental processes, since these occupations require different visible areas of the workspace in size and location.

The task to which the claimed technical solution is directed is to reduce the luminous flux from a computer monitor when using computer programs designed for classes to restore various mental functions: speech, attention, memory, visual and spatial perception, etc.

The technical result of the utility model is a significant reduction in visual fatigue due to the possibility of selectively reducing the luminous flux from the computer monitor by using filters that close the unused surface of the computer monitor screen, leaving only those fragments of its surface visible that are necessary for presenting the working material during classes to restore various mental functions: speech, attention, memory, visual and spatial th perception, as well as expanding the range of such funds.

The technical result is achieved in that the device for reducing visual fatigue from a computer monitor during classes to restore impaired mental functions contains a transparent base made of Plexiglas and having dimensions corresponding to the dimensions of the computer monitor, the upper part of the base is connected by hinges to a plastic plate providing the device is attached to the top of the computer monitor, and two handles are mounted in the lower part of the base, allowing you to lift the device making the whole space of a computer monitor accessible to perception, while the transparent base is made in the form of two transparent sheets of plexiglas 3-5 mm thick located parallel to each other, rigidly interconnected by means of plastic gaskets, 2-3 mm thick and creating between sheets of plexiglas, a gap of 2-3 mm, in which the protective filter is movably installed in the form of a transparent file containing a sheet of thick paper with transparent regions of various shapes or transparent films deposited on it , with an opaque white background applied to it and separate transparent areas in the form of geometric shapes and symbols, and a rectangular plate is attached to the top of a sheet of Plexiglas directly adjacent to a computer monitor.

A useful model of a device for reducing visual fatigue from a computer monitor during classes to restore impaired mental functions is illustrated by the drawings, which depict:

In FIG. 1 is a front view of the device;

In FIG. 2 is a side view of the device;

In FIG. 3 is a general view of a device installed on a computer monitor without a protective filter;

In FIG. 4 - a general view of the device, with a protective filter installed in it, designed to work with the program for recovering spatial memory;

In FIG. 5 is a general view of the device, with a protective filter installed in it, designed to work with a program for restoring eye movements;

In FIG. 6 is a general view of the device, with a protective filter installed in it, designed to work with a program for restoring spatial perception;

In FIG. 7 is a general view of the device, with a protective filter installed in it, designed to work with the program for recovering letters with various forms of alexia.

A device for reducing visual fatigue from a computer monitor during classes to restore impaired mental functions (see Fig. 1-3) contains a base made of two transparent sheets of plexiglass arranged parallel to each other, one of which (2) is directly adjacent to a computer monitor (3) and a second (1), located in front of a sheet of plexiglass (2). Moreover, the transparent sheets of organic glass (1) and (2) on the sides and the lower sides are rigidly interconnected by means of plastic gaskets (4) having a thickness of 2-3 mm and creating a gap of 2 between the sheets of organic glass (1) and (2) -3 mm. A protective filter (5) made in the form of a transparent file containing a sheet of thick paper or a transparent film (6) of A3 format is movably mounted on top of the gap. In this case, transparent regions (11) of various shapes are applied to a sheet of thick paper (6), and an opaque white background with separate transparent regions (11) in the form of geometric shapes and symbols is applied to a transparent film (6) (see Fig. 4-7 ) Plexiglas sheets (1) and (2) have a thickness of 3-5 mm, and their size corresponds to the size of a computer monitor. In the upper part of the Plexiglas sheet (2) located in front of the computer monitor (3), a rectangular plate (9) is fixed through a movable swivel joint (8), which is attached to the upper part of the computer monitor (3) using double-sided tape.

In the lower part of the device, two handles (10) are rigidly mounted on the left and right sides, allowing you to lift the device, making all the working space of a computer monitor (3) accessible to perception.

In the case of using a widescreen monitor, with an aspect ratio of 16 × 9, in the left and right parts of the device, opaque paper strips (7) are placed between the sheets of organic glass (1) and (2), covering the left and right edges of the screen of a widescreen computer monitor (3 )

A sheet of thick paper (6) contains transparent areas (11) of various shapes cut out in a sheet of paper, depending on the computer program for restoring impaired mental functions, for which this protective filter is designed to work (5).

A sheet of transparent film (6) contains an opaque white background deposited on it, in which there are separate transparent areas (11) in the form of geometric shapes, symbols, depending on the computer program for restoring disturbed mental functions, for which this filter is designed to work;

An important feature of the design of the device is that, if necessary, it can be easily removed from the front surface of the computer monitor (3) by moving it with the handles (10) to the back of the computer monitor (3). Due to this, this device does not interfere with the use of any other computer programs that do not require the use of this device in the process of restorative training.

In the center of the upper and / or lower part of each sheet of thick paper or transparent film (6) create a transparent field (12) through which work with the control elements of computer programs (13) is carried out - the buttons "START", "FORWARD", "BACK" and any other control elements necessary for work.

Each sheet of thick paper or transparent film (6) containing transparent areas is inserted into a transparent A3 file, which protects and protects the sheet of thick paper or transparent film (6) from damage and allows you to easily remove it from the device from the top of the transparent file (14 )

The device operates as follows:

Before starting work, a specialist takes the device behind the rear surface of the computer monitor (3) using the handles (10) and launches a certain computer program on the computer. After that, the specialist with the help of handles (10) and a rectangular plate (9) sets the device into working position in front of the computer monitor (3), and inserts into the gap between two sheets of plexiglass (1) and (2) a protective filter (5) containing a sheet of thick paper or transparent film (6), corresponding to the currently used computer program.

Further work is carried out depending on the impaired mental function of the patient and the computer program intended for this case. Let's look at a few examples:

When using a computer program designed to restore spatial memory during classes (see Fig. 4), a protective filter (5) is inserted into the device, containing a sheet of thick paper or a transparent film (6), with transparent areas evenly located on a white background ( 11) round or square. Next, the specialist sets the computer mouse cursor in the transparent field (12) of the upper part of the protective filter (5), where the control elements (13) of the computer program are located, and presses the "START" button with the cursor. After that, on the screen of a computer monitor (3), in places where transparent areas (11) are located on the protective filter (5) at the same time, several areas are darkened for 2-5 seconds, from 2 to 6, depending on the set the level of complexity that this computer program generates randomly. The patient needs to remember the location of these areas, and after their disappearance, mark their location with a marker on the top sheet of plexiglass (1). After that, the specialist presses the “BACK” button with the mouse cursor, as a result of which several areas that are in this program are darkened again on the computer monitor (3), which allows the patient to verify that the task has been completed. Next, the specialist presses the “FORWARD” button, as a result of which several new areas are darkened on the computer monitor (3) using the computer program used.

When using a computer program designed to restore eye movements during classes (see Fig. 5), a protective filter (5) is inserted into the device, containing a transparent film (6), on which an opaque white background is applied, but evenly spaced on its surface letters of the alphabet. The specialist or patient sets the computer mouse cursor in a transparent field (12) in the upper part of the protective filter (5), through which the control elements of the computer program (13) are visible. Next, the specialist presses the “START” button with the cursor, and then on the computer monitor screen (3), in places where the letters of the alphabet are located on the protective filter, certain areas begin to darken at a certain speed, as a result of which individual letters of the alphabet become visible. Thus, from the letters of the alphabet, words are sequentially formed that the patient must read by moving the eyes along the surface of the protective filter (5) located in front of the monitor (3). For example, first the letter “D” becomes visible, then the letter “O”, then “M”, as a result of which the patient reads the word “HOUSE”.

When using a computer program designed for working with a program for restoring spatial perception (see Fig. 6), a protective filter (5) containing a sheet of thick paper or transparent film (6) containing one large transparent area is inserted into the device (11) round or square in the center of the sheet (6) and transparent fields (12) located in the upper and lower parts of the sheet (6), through which the control elements of the computer program (13) are visible. Next, the specialist sets the computer mouse cursor in the upper transparent field (12) of the protective filter (5), where the control elements of the computer program (13) are located and presses the “START” button with the cursor, after which an image appears in the center of the computer monitor screen (3) hands, and the patient needs to determine which hand is left or right. For this purpose, the computer mouse cursor is moved to the lower transparent field (12) of the protective filter (5), where the control buttons are located, indicated by the words “LEFT” and “RIGHT”. The patient needs to click on one of these buttons, after which, if the answer was correct, a new image of the hand will appear in the center of the monitor (3).

When using a computer program during classes to restore writing with various forms of alexia (see Fig. 8), a protective filter (5) containing a sheet of thick paper or transparent film (6) with evenly spaced white background is inserted into the device transparent areas (11) of square or rectangular shape. Next, the specialist sets the computer mouse cursor in the transparent field (12) of the upper part of the protective filter (5), where the control elements of the computer program (13) are located, and presses the “START” button with the cursor, and then on the screen of the computer monitor (3), places where transparent areas (11) are located on the protective filter (5), the letters that this computer program generates appear in such a way that in each row of transparent areas (11) they produce a word in which one or two letters are missing that the patient dol en enter a marker in the area where this letter is to be located.

After the work with a particular computer program is completed, the specialist removes the protective filter (5) from the top of the transparent file (14) and closes the used computer program. Next, the specialist launches a new computer program, and then inserts a protective filter (5) into the device, designed to work with this computer program.

Along with the use of a device to reduce visual fatigue from a computer monitor during classes to restore impaired mental functions with the above computer programs, this device can also be used with other computer programs, protecting the patient from radiation from a computer monitor, making the patient’s activities more ergonomic. This allows you to increase the duration of patients' work at the computer and thereby contributes to an increase in the effectiveness of rehabilitation training.

Assessment of the overall effectiveness of protecting the patient from exposure to light from a computer monitor was determined using the protection coefficient (K _protection ), which is equal to the ratio of the area perceived by the patient through the transparent parts of the filter (S _per. ) To the total area of the computer monitor (S _total ).

K _protection = S _perception. / S _total × 100%

In the above examples, the protection coefficient was from 50 to 90%

Along with using a neurological clinic during classes with patients, the proposed "Device for reducing visual fatigue from a computer monitor during classes to restore impaired mental functions" can be used in the following areas:

1. When corrective and developing work with children with various mental disorders;

2. When working with healthy children during classes in various disciplines of the school curriculum;

3. When conducting neurocognitive training with the elderly;

4. When training various mental functions (memory, attention, etc.) by healthy people who want to improve the capabilities of their mental sphere;

5. When teaching foreign languages using computer technology.

Thus, the proposed "Device for reducing visual fatigue from a computer monitor during classes to restore impaired mental functions" opens up new possibilities for the practice of rehabilitation training, as it reduces the fatigue of patients during classes with a computer, and can significantly increase the length of time patients stay behind the monitor . In addition, this device expands the possibilities of using computer technologies in rehabilitation education due to the fact that it allows the patient to perform various graphic operations with an easily erasable marker on the surface of the device, thereby bringing the computer program shown on the monitor closer to the traditional printed manual, on the sheets of which the patient performs various graphic actions with a pen or pencil. This device significantly expands the possibilities of using educational computer programs when working with children, due to the fact that it makes this work with a computer more ergonomic. The device also provides a selective reduction in the luminous flux from the computer monitor through the possibility of using filters, due to the gap between two parallel to each other transparent sheets of plexiglas 3-5 mm thick, rigidly interconnected by means of plastic gaskets and ensuring the closure of an unused surface screen of a computer monitor, leaving visible only those fragments of its surface that are necessary for the presentation of the working material in x The practice of restoring various mental functions: speech, attention, memory, visual and spatial perception, significantly reduces visual fatigue. In addition, the simple manufacture of such a device will expand the range of such tools.

Claims (2)

1. A device to reduce visual fatigue from a computer monitor during classes to restore impaired mental functions, containing a transparent base made of plexiglass and having dimensions corresponding to the dimensions of a computer monitor, the upper part of the base is connected by hinges to a plastic plate that secures the device to the upper part of the computer monitor, and two handles are mounted in the lower part of the base, allowing you to lift the device, making it accessible to perception in e space of a computer monitor, characterized in that the transparent base is made in the form of two transparent sheets of plexiglas 3-5 mm thick located parallel to each other, rigidly interconnected by means of plastic gaskets 2-3 mm thick and creating a gap of 2 between plexiglass sheets -3 mm, in which the protective filter is movably mounted in the form of a transparent file containing a sheet of thick paper with transparent regions of various shapes deposited on it or a transparent film with a non-transparent coating achnym white background and the individual transparent areas in the form of geometric figures and characters, and a rectangular plate is attached to the upper sheet of plexiglass, directly adjacent to the computer monitor. 2. The device according to claim 1, characterized in that in the case of using a widescreen monitor, opaque strips of paper are placed between the sheets of plexiglass in the gap in the left and right parts of the device.

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