CN215384121U - Integrated visual evoked potential device - Google Patents
Integrated visual evoked potential device Download PDFInfo
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- CN215384121U CN215384121U CN202121543688.XU CN202121543688U CN215384121U CN 215384121 U CN215384121 U CN 215384121U CN 202121543688 U CN202121543688 U CN 202121543688U CN 215384121 U CN215384121 U CN 215384121U
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- head circumference
- flash
- elastic head
- evoked potential
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- 230000000763 evoking effect Effects 0.000 title claims abstract description 20
- 230000000007 visual effect Effects 0.000 title claims abstract description 20
- 210000003128 head Anatomy 0.000 claims abstract description 32
- 210000001061 forehead Anatomy 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims description 8
- 210000004556 brain Anatomy 0.000 description 14
- 230000000638 stimulation Effects 0.000 description 12
- 230000001105 regulatory effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000009182 swimming Effects 0.000 description 4
- 230000003321 amplification Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 208000004356 Hysteria Diseases 0.000 description 1
- 208000012839 conversion disease Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
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- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The integrated visual evoked potential device of the present invention comprises: magic tapes are respectively fixed at two ends of an elastic head circumference body to adjust the size of the head circumference, a flexible shell is pasted at the inner side of the elastic head circumference body and the position corresponding to the forehead of a human body, an electroencephalogram sensor is respectively fixed at the left, middle and right positions of the flexible shell, a three-channel amplifier, a three-channel filter, a three-channel digital-to-analog converter and a controller are arranged in the elastic head circumference body, a hollow fixed block is fixed at the outer side of the elastic head circumference body and the position corresponding to the forehead of the human body, a display screen is embedded on the outer side surface of the hollow fixed block, two long holes are formed in the bottom of the hollow fixed block, teeth with symmetrical shapes are formed on the two side edges of the two long holes, a first adjusting block and a second adjusting block are in interference fit between the teeth of the two long holes, the bottom of a first moving block is fixed with the top end of a first fixed rod, a first flash stimulator is fixed at the bottom of the first fixed rod, and the top end of a second moving block are fixed with the top end of a second fixed rod, the bottom end of the second fixing rod is fixed with a second flash stimulator.
Description
Technical Field
The utility model relates to the technical field of visual evoked potential stimulation, in particular to an integrated visual evoked potential device based on flash stimulation.
Background
Visual evoked potentials can be classified into two categories, non-graphic and graphic, the former using flashing light and the latter using graphic stimulation.
In recent years, the application of the graph overturning stimulation is wider in clinic, but the flash stimulation has the advantage that the flash stimulation does not need to be matched with a patient, so that the flash stimulator is still suitable for people with hysteria, fraud and low intelligence of children.
The traditional flashing stimulator device adopts swimming goggles as a basic framework, then a string of LED flash lamps are placed on two eyepieces, and after a patient wears the upstream swimming goggles, the aim of stimulation is achieved through flashing of the LED lamps. However, the swimming goggles have a drawback that the interpupillary distance cannot be adjusted, and the infant patient cannot wear the upstream swimming goggles because the skull thereof is too small, which makes stimulation very difficult and has poor versatility.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems and the defects in the prior art, the utility model provides a novel integrated visual evoked potential device based on flash stimulation.
The utility model solves the technical problems through the following technical scheme:
the utility model provides an integrated visual evoked potential device which is characterized by comprising an elastic head circumference body, wherein magic tapes which are bonded with each other are respectively fixed at two ends of the elastic head circumference body so as to adjust the size of the head circumference, a flexible shell is pasted on the inner side of the elastic head circumference body and corresponds to the forehead position of a human body, a first electroencephalogram sensor, a second electroencephalogram sensor and a third electroencephalogram sensor are respectively fixed at the left side, the middle and the right side of the flexible shell, a three-channel amplifier, a three-channel filter, a three-channel digital-to-analog converter and a controller are arranged in the elastic head circumference body, a hollow fixed block is fixed on the outer side of the elastic head circumference body and corresponds to the forehead position of the human body, a display screen is embedded on the outer side surface of the hollow fixed block, a first long hole and a second long hole are formed in the bottom of the hollow fixed block, teeth which are symmetrical in shape are formed on two side edges of the first long hole and the second long hole, inlay the first regulating block and the second regulating block that are equipped with shape assorted interference fit between the tooth of first slot hole and second slot hole respectively, the bottom of first regulating block is fixed with the top of first dead lever, the bottom mounting of first dead lever has first flash stimulator, the bottom of second regulating block is fixed with the top of second dead lever, the bottom mounting of second dead lever has the second flash stimulator.
The first electroencephalogram sensor, the second electroencephalogram sensor and the third electroencephalogram sensor are electrically connected with a three-channel amplifier, the three-channel filter, the three-channel digital-to-analog converter and the controller are electrically connected in sequence, and the controller is electrically connected with the display screen.
Preferably, a first pressure sensor and a second pressure sensor are respectively fixed at the left side and the right side of the flexible shell, and both the first pressure sensor and the second pressure sensor are electrically connected with the controller.
Preferably, the first flash stimulator and the second flash stimulator both comprise a substrate, a switch is embedded on the substrate, a power supply and a plurality of flash lamps are arranged in the substrate, the power supply is electrically connected with the flash lamps through the switch, and a light emitting hole is formed in one side of the substrate, which faces towards the human eyes.
Preferably, the flash lamp is an LED lamp.
Preferably, the controller is a single chip microcomputer.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the utility model.
The positive progress effects of the utility model are as follows:
the integrated visual evoked potential device is designed in an integrated mode, high in integration level and high in universality, head circumference is adjusted through the magic tapes on the elastic head circumference body to match with head circumferences of human bodies with different sizes, the two flash stimulators are driven to move left and right respectively to aim at the left eye and the right eye of a human body through the pushing of the two adjusting rods, the adjustment is flexible, brain wave signals are collected through the brain wave sensor, the collected brain wave signals are transmitted to the controller after being subjected to signal amplification, filtering and analog-to-digital conversion, and the controller controls the display screen to display a brain wave oscillogram. In clinical use, the visual evoked potential equipment with the structure can ensure that the stimulation is more reliably adjusted, and the obtained waveform has smaller dispersion.
Drawings
FIG. 1 is a schematic structural diagram of an integrated visual evoked potential apparatus (viewed from the front) according to a preferred embodiment of the present invention.
FIG. 2 is a schematic structural diagram of an integrated visual evoked potential apparatus (from the back) according to a preferred embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a long hole built-in moving block according to a preferred embodiment of the present invention.
Fig. 4 is a control schematic diagram of a visual evoked potential apparatus based on flash stimulation according to a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1-4, the present embodiment provides an integrated visual evoked potential device, which comprises an elastic head circumference body 1, wherein a first magic tape and a second magic tape 3 are fixed at two ends of the elastic head circumference body 1 respectively. The first magic tape and the second magic tape 3 adjust the head circumference to match the head circumferences of human bodies with different sizes, so that the visual evoked potential device is suitable for more users, such as children, teenagers and adults, and has strong universality.
The flexible head circumference comprises an elastic head circumference body 1, wherein a flexible shell 4 is attached to the inner side of the elastic head circumference body 1 and corresponds to the forehead position of a human body, a first brain electric sensor 5, a second brain electric sensor 6 and a third brain electric sensor 7 are respectively fixed to the left side, the middle and the right side of the flexible shell 4, a first pressure sensor 17 and a second pressure sensor 18 are respectively fixed to the left side and the right side of the flexible shell 4, a three-channel amplifier 8, a three-channel filter 9, a three-channel digital-to-analog converter 10 and a controller 11 (such as a single chip microcomputer) are arranged in the elastic head circumference body 1, a hollow fixing block 12 is fixed to the outer side of the elastic head circumference body 1 and corresponds to the forehead position of the human body, a display screen 19 is embedded on the outer side surface of the hollow fixing block 12, a first long hole 20 and a second long hole 23 are formed in the bottom of the hollow fixing block 12, teeth with symmetrical shapes are formed on the edges of the two sides of the first long hole 20 and the second long hole 23, inlay the first regulating block 21 and the second regulating block 22 that are equipped with shape assorted interference fit between the tooth of first slot hole 20 and second slot hole 23 respectively, the bottom of first regulating block 21 is fixed with the top of first dead lever 13, the bottom mounting of first dead lever 13 has first flash stimulator 14, the bottom of second regulating block 22 is fixed with the top of second dead lever 15, the bottom mounting of second dead lever 15 has second flash stimulator 16.
The first electroencephalogram sensor 5, the second electroencephalogram sensor 6 and the third electroencephalogram sensor 7 are all electrically connected with a three-channel amplifier 8, the three-channel amplifier 8, a three-channel filter 9, a three-channel digital-to-analog converter 10 and a controller 11 are sequentially electrically connected, the controller 11 is electrically connected with a display screen 19, and the first pressure sensor 17 and the second pressure sensor 18 are both electrically connected with the controller 11.
Wherein, first flash stimulator 14 and second flash stimulator 16 all include the base plate, it is equipped with the switch to inlay on the base plate, be provided with power and a plurality of flash light (LED lamp) in the base plate, the power passes through the switch and is connected with these some flash lights electricity, the luminescent hole has been seted up to one side towards the people's eye of base plate.
The user encloses elasticity head and encloses body 1, and the both ends of elasticity head encloses body 1 are pasted 3 mutually through first magic subsides and second magic. The first pressure sensor 17 and the second pressure sensor 18 detect pressure and transmit pressure signals to the controller 11, when the controller 11 judges that the transmitted pressure signals are greater than or equal to the set pressure signals, information indicating that the flexible shell is in close contact with the forehead of the user is displayed through the display screen 19, when the controller 11 judges that the transmitted pressure signals are smaller than the set pressure signals, information indicating that the flexible shell is not in close contact with the forehead of the user is displayed through the display screen 19, the head circumference is readjusted, the flexible shell is in close contact with the forehead of the user, and therefore the electroencephalogram signals can be collected accurately in the following process.
Then, the first adjusting block 21 and the second adjusting block 22 are forcibly pulled out, the first flash stimulator 14 and the second flash stimulator 16 are positioned so that the first flash stimulator 14 and the second flash stimulator 16 are aligned with the left eye and the right eye of the user, respectively, and the first adjusting block 21 and the second adjusting block 22 are respectively inserted into the first long hole 20 and the second long hole 23 right above the left eye and the right eye of the user. When a switch is pressed down, a first flash stimulator 14 and a second flash stimulator 16 respectively send out stimulation light sources to stimulate the left eye and the right eye of a user, a first brain electrode 5, a second brain electrode 6 and a third brain electrode 7 collect brain wave signals, the collected brain wave signals are sequentially subjected to signal amplification through a three-channel amplifier 8, filtering is performed through a three-channel filter 9, analog-to-digital conversion is performed through a three-channel analog-to-digital converter 10, and then the signals are transmitted to a controller 11, the controller 11 controls a display screen 19 to display brain wave graphs, and the display screen 19 is located at the forehead position of the human body of the user, so that an operator can conveniently watch the brain wave graphs in time.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications are within the scope of the utility model.
Claims (5)
1. An integrated visual evoked potential device is characterized by comprising an elastic head circumference body, wherein magic tapes which are bonded with each other are respectively fixed at two ends of the elastic head circumference body so as to adjust the size of the head circumference, a flexible shell is pasted on the inner side of the elastic head circumference body and corresponds to the forehead position of a human body, a first electroencephalogram sensor, a second electroencephalogram sensor and a third electroencephalogram sensor are respectively fixed at the left side, the middle side and the right side of the flexible shell, a three-channel amplifier, a three-channel filter, a three-channel digital-to-analog converter and a controller are arranged in the elastic head circumference body, a hollow fixed block is fixed on the outer side of the elastic head circumference body and corresponds to the forehead position of the human body, a display screen is embedded on the outer side surface of the hollow fixed block, a first long hole and a second long hole are formed in the bottom of the hollow fixed block, teeth which are symmetrical in shape are formed on two side edges of the first long hole and the second long hole, a first adjusting block and a second adjusting block which are matched in shape and in interference fit are respectively embedded between the teeth of the first long hole and the second long hole, the bottom of the first adjusting block is fixed with the top end of a first fixing rod, a first flash stimulator is fixed at the bottom end of the first fixing rod, the bottom of the second adjusting block is fixed with the top end of a second fixing rod, and a second flash stimulator is fixed at the bottom end of the second fixing rod;
the first electroencephalogram sensor, the second electroencephalogram sensor and the third electroencephalogram sensor are electrically connected with a three-channel amplifier, the three-channel filter, the three-channel digital-to-analog converter and the controller are electrically connected in sequence, and the controller is electrically connected with the display screen.
2. The integrated visual evoked potential device of claim 1, wherein a first pressure sensor and a second pressure sensor are fixed to the flexible housing at left and right positions, respectively, and are electrically connected to the controller.
3. The integrated visual evoked potential device of claim 1, wherein each of the first and second flash stimulators comprises a substrate, a switch is embedded on the substrate, a power source and a plurality of flash lamps are arranged in the substrate, the power source is electrically connected with the flash lamps through the switch, and a light emitting hole is formed on one side of the substrate facing human eyes.
4. The integrated visual evoked potential device of claim 3, wherein said flash is an LED lamp.
5. The integrated visual evoked potential device of claim 1, wherein the controller is a single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121543688.XU CN215384121U (en) | 2021-07-08 | 2021-07-08 | Integrated visual evoked potential device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121543688.XU CN215384121U (en) | 2021-07-08 | 2021-07-08 | Integrated visual evoked potential device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215384121U true CN215384121U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121543688.XU Expired - Fee Related CN215384121U (en) | 2021-07-08 | 2021-07-08 | Integrated visual evoked potential device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215384121U (en) |
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2021
- 2021-07-08 CN CN202121543688.XU patent/CN215384121U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |