CN112515683B - Electroencephalogram cap and electroencephalogram acquisition method - Google Patents
Electroencephalogram cap and electroencephalogram acquisition method Download PDFInfo
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- CN112515683B CN112515683B CN202011370537.9A CN202011370537A CN112515683B CN 112515683 B CN112515683 B CN 112515683B CN 202011370537 A CN202011370537 A CN 202011370537A CN 112515683 B CN112515683 B CN 112515683B
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 210000003128 head Anatomy 0.000 claims abstract description 30
- 210000004761 scalp Anatomy 0.000 claims abstract description 11
- 238000012360 testing method Methods 0.000 claims description 13
- 230000001502 supplementing effect Effects 0.000 claims description 11
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 5
- 210000004556 brain Anatomy 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 20
- 239000011148 porous material Substances 0.000 description 19
- 238000001514 detection method Methods 0.000 description 8
- 239000003792 electrolyte Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 208000012902 Nervous system disease Diseases 0.000 description 1
- 208000025966 Neurological disease Diseases 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 206010015037 epilepsy Diseases 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 208000020016 psychiatric disease Diseases 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 208000019116 sleep disease Diseases 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
An electroencephalogram cap comprises a main body, at least one electric acquisition component and a plug, wherein the main body is sleeved on a head, the plug is used for being connected with external equipment, and the electric acquisition component comprises an electrode seat and an electrode group; the electrode seat is fixedly arranged on the surface of the main body, and the electrode group is detachably connected with the electrode seat; the electrode seat is provided with a conductive device and a lead wire, wherein the conductive device and the lead wire are used for collecting scalp potential information, two ends of the lead wire are respectively connected with the conductive device and the plug, and a second hole suitable for the conductive paste to pass through is formed in the conductive device; the electrode group comprises a conductive paste cavity for storing conductive paste and an electrode contact, wherein the electrode contact is communicated with the inside of the conductive paste cavity, a first hole suitable for the conductive paste to pass through is formed in the electrode contact, and the structure of the electrode contact is suitable for being fixed and electrically communicated with a conductive device. An electroencephalogram acquisition method comprises the steps of installation and adjustment, starting work, adjusting the position of an electrode group and the like. The electroencephalogram cap and the electroencephalogram collection method provided by the invention improve the use convenience of the electroencephalogram cap.
Description
Technical Field
The invention relates to the technical field of medical detection, in particular to an electroencephalogram cap and an electroencephalogram acquisition method.
Background
In clinical applications, many brain neurological diseases such as epilepsy, mental diseases, sleep disorders, etc. require physiological and pathological information to be obtained by recording brain electrical signals. The scalp electroencephalogram acquisition system is commonly called an electroencephalogram cap, records bioelectric signals through electrodes fixed at the scalp positions, and is connected with a signal amplifier and an analog-to-digital converter for electroencephalogram signal recording.
The most commonly used electroencephalogram recording mode in hospitals at present is to directly fix electrode slices by utilizing conductive paste, and the design is accurate in positioning, but the operation process is time-consuming and labor-consuming because electrodes are required to be pasted one by one in the use process, and meanwhile, the electrode placement position is very inconvenient because the experience of a professional doctor or technician is required to be relied on.
Therefore, in the prior art, a wearing type electroencephalogram cap is provided, each through hole on the electroencephalogram cap corresponds to one electroencephalogram acquisition point, and a doctor introduces conductive paste into each through hole one by one. The electroencephalogram cap has the advantages that the electrodes can be arranged on the electroencephalogram cap in advance, so that the time for fixing the electrodes is saved, the operation of injecting the conductive paste one by one is complex, the time is long, and the electroencephalogram cap is still very inconvenient.
In addition, there is a means of electrical contact between the electrodes and the scalp by means of an electrolyte (e.g., saline). However, the electrolyte is easy to volatilize, so that the electrolyte needs to be replenished at any time, and the method is still inconvenient. In addition, the electrolyte also easily causes short circuit of signals between electrodes, and the acquisition result is influenced.
Disclosure of Invention
The invention aims to solve the technical problem that the electroencephalogram detection equipment in the prior art is inconvenient to use, and provides an electroencephalogram cap convenient to use.
In order to solve the technical problems, the invention adopts the following technical scheme:
an electroencephalogram cap comprises a main body, at least one electric acquisition component and a plug, wherein the main body is sleeved on a head, the plug is used for being connected with external equipment, and the electric acquisition component comprises an electrode seat and an electrode group; the electrode seat is fixedly arranged on the surface of the main body, and the electrode group is detachably connected with the electrode seat;
the electrode holder is provided with a conductive device and a lead wire, wherein the conductive device is used for collecting scalp potential information, two ends of the lead wire are respectively connected with the conductive device and the plug, and the conductive device is provided with a second hole which is suitable for the passage of conductive paste;
the electrode group comprises a conductive paste cavity for storing conductive paste and an electrode contact, wherein the electrode contact is communicated with the inside of the conductive paste cavity, a first hole suitable for the conductive paste to pass through is formed in the electrode contact, and the structure of the electrode contact is suitable for being fixed and electrically communicated with the conductive device.
In the electroencephalogram cap, the plane where the second pore is located and the plane where the first pore is located are suitable for being attached when the electrode group and the electrode seat are in a connection state.
In the electroencephalogram cap, the first hole is formed in one end, far away from the conductive paste cavity, of the electrode contact; the second aperture and the first aperture are adapted to form a passage for the passage of a conductive paste when the electrode group and the electrode holder are in a connected state.
In the electroencephalogram cap, the number of the second pores is more than that of the first pores, and the sizes of the second pores are not all the same and are smaller than that of the first pores.
In the electroencephalogram cap, the number of the first pores is greater than that of the second pores, and the sizes of the first pores are not all the same and are smaller than that of the second pores.
In the electroencephalogram cap, the conductive device is a rotary female head, and the surface of the electrode contact is provided with a rotary male head matched with the rotary female head.
In the electroencephalogram cap, the conductive device is provided with the test unit, and the test unit comprises a test circuit board for measuring impedance and an indicator lamp for displaying impedance state.
In the electroencephalogram cap, a permeable membrane for maintaining pressure balance is arranged in the conductive paste cavity, and a knob for rotating the electrode group is arranged at one end, far away from the electrode contact, of the conductive paste cavity.
In the electroencephalogram cap, the number of the electric acquisition components is multiple, and each electric acquisition component corresponds to one electroencephalogram acquisition potential.
The invention also provides an electroencephalogram acquisition method using the electroencephalogram cap, which comprises the following steps of:
step A: sleeving the main body on the head, and adjusting the position of the electric acquisition component;
and (B) step (B): fixing the plug on a designated device and starting the electroencephalogram cap to work;
step C: and adjusting the position of the electrode group according to the storage quantity of the conductive paste at the electrode seat position so as to adjust the supplementing speed of the conductive paste.
Compared with the prior art, the technical scheme of the invention has the following advantages:
(1) the invention relates to an electroencephalogram cap, which comprises a main body, at least one electric acquisition component and a plug, wherein the main body is sleeved on the head, the plug is used for being connected with external equipment, and the electric acquisition component comprises an electrode seat and an electrode group; the electrode holder is fixedly arranged on the surface of the main body, and the electrode group is detachably connected with the electrode holder. The electrode seat is provided with a conductive device and a lead wire, wherein the conductive device and the lead wire are used for collecting scalp potential information, two ends of the lead wire are respectively connected with the conductive device and the plug, and the conductive device is provided with a second hole which is suitable for the passage of conductive paste; the electrode group comprises a conductive paste cavity for storing conductive paste and an electrode contact, wherein the electrode contact is communicated with the inside of the conductive paste cavity, a first hole suitable for the conductive paste to pass through is formed in the electrode contact, and the structure of the electrode contact is suitable for being fixed and electrically communicated with a conductive device. By means of the design, the first pore and the second pore can continuously and automatically supplement the conductive paste to the scalp potential collecting position, so that the workload of operators is reduced, and the use convenience of the electroencephalogram cap is improved.
(2) According to the electroencephalogram cap disclosed by the invention, the plane where the second pore is located and the plane where the first pore is located are suitable for being attached when the electrode group and the electrode seat are in a connection state. By means of the design, when the positions of the electrode groups are adjusted, the first holes and the second holes are completely staggered, the relative closing of the conductive paste supplementing channels can be achieved, at the moment, the conductive paste is supplemented only from the connected gaps, the minimum supplementing speed of the conductive paste is reduced, the supplementing speed range of the conductive paste is enlarged, and the use universality of the electroencephalogram cap is improved.
(3) According to the electroencephalogram cap, the first pore is formed in one end, far away from the conductive paste cavity, of the electrode contact; the second aperture and the first aperture are adapted to form a channel for the passage of the conductive paste when the electrode assembly and the electrode holder are in a connected state. By means of the design, when the electroencephalogram cap is normally used, the conductive paste can automatically pass through the channel under the action of gravity, so that automatic replenishment of the conductive paste is further achieved, and the use convenience of the electroencephalogram cap is further improved.
(4) According to the electroencephalogram cap disclosed by the invention, the number of the second pores is more than that of the first pores, and the sizes of the second pores are not all the same and are smaller than that of the first pores. Or, the number of first apertures is greater than the second apertures, the size of the first apertures not being all the same and smaller than the size of the second apertures. By means of the design, through adjusting the positions of the electrode groups, various channel radiuses can exist between the first holes/the second holes, so that the supplementing speed of the conductive paste is controlled more accurately, the conductive paste is supplemented more accurately, and the using convenience of the electroencephalogram cap is improved.
(5) The electroencephalogram cap is characterized in that the conductive device is a rotary female head, and the surface of the electrode contact is provided with a rotary male head matched with the rotary female head. The design is more accurate and convenient when the electrode group is installed, the abnormal conductive paste supplementing speed caused by the deviation of the installation angle of the electrode group is prevented, and the use accuracy of the electroencephalogram cap is improved.
(6) The electroencephalogram cap disclosed by the invention is provided with the testing unit, and the testing unit comprises a testing circuit board for measuring impedance and an indicator lamp for displaying impedance state. When the conductive paste at the scalp potential collecting position is absent, the indication lamp can change in brightness or color, and an operator can more intuitively know whether the conductive paste is sufficient or not, so that targeted operation is performed. By the design, the use convenience of the electroencephalogram cap is further improved.
(7) The invention discloses an electroencephalogram cap, which is characterized in that the number of electric acquisition components is multiple, and each electric acquisition component corresponds to one electroencephalogram acquisition potential. By the design, the electroencephalogram cap can directly correspond to a plurality of scalp potential acquisition positions, so that electroencephalogram acquisition is carried out on a plurality of positions at the same time, and the use convenience of the electroencephalogram cap is further improved.
(8) The electroencephalogram acquisition method comprises the following steps: step A: sleeving the main body on the head, and adjusting the position of the electric acquisition component; and (B) step (B): fixing the plug on the appointed equipment, and starting the electroencephalogram cap to work; step C: and adjusting the position of the electrode group according to the storage quantity of the conductive paste at the position of the electrode seat so as to adjust the supplementing speed of the conductive paste. By the design, the conductive paste can be directly supplemented to the electroencephalogram acquisition potential on the premise that the electroencephalogram cap main body is not removed, and the supplementing speed of the conductive paste can be regulated according to the storage quantity of the conductive paste of the electroencephalogram acquisition potential, so that the manual injection of the conductive paste is avoided, and the use convenience of the electroencephalogram cap is improved.
Drawings
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which
FIG. 1 is a schematic view of the structure of an electroencephalogram cap according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view of the electrode holder according to the preferred embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the electrode assembly according to the preferred embodiment of the present invention;
fig. 4 is a schematic structural view of the electroencephalogram detection system according to the preferred embodiment of the present invention.
The reference numerals in the drawings are as follows: the device comprises a 1-main body, a 2-electric acquisition component, a 21-electrode seat, a 211-rotating female head, a 212-second hole, a 213-test circuit board, a 214-indicator lamp, a 215-lead wire, a 22-electrode group, a 221-electrode contact, a 222-first hole, a 223-rotating male head, a 224-conductive paste cavity, a 225-permeable membrane, a 226-knob, a 3-plug, a 4-external device, a 41-power supply module, a 42-signal amplification module, a 43-analog-digital conversion module, a 44-processing module, a 45-storage module, a 46-display module, a 47-operating system and a 48-connection unit.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-4, which are preferred embodiments of the present invention, the present embodiment relates to an electroencephalogram detection system including an electroencephalogram cap and an external device 4.
The electroencephalogram cap comprises a main body 1 sleeved on the head, at least one electric acquisition component 2 and a plug 3 used for being connected with external equipment 4, wherein the electric acquisition component 2 is arranged on the surface of the main body 1. In this embodiment, the number of the electrical acquisition assemblies 2 is plural, and each electrical acquisition assembly 2 corresponds to one electroencephalogram acquisition potential. Further, the number of the electrical collection assemblies 2 is thirty-two.
The electric acquisition assembly 2 comprises an electrode seat 21 and an electrode group 22 which are detachably connected; the electrode holder 21 is provided with a conductive device for collecting scalp potential information and a lead 215, two ends of the lead 215 are respectively connected with the conductive device and the plug 3, and the conductive device is provided with a second hole 212 suitable for the passage of conductive paste; the electrode group 22 comprises a conductive paste cavity 224 for storing conductive paste and an electrode contact 221, the electrode contact 221 is communicated with the inside of the conductive paste cavity 224, a first hole 222 suitable for the conductive paste to pass through is arranged on the electrode contact 221, and the electrode contact 221 is structured to be fixed and electrically communicated with the conductive device. In this embodiment, the conductive device is a rotating female head 211, and the surface of the electrode contact 221 is provided with a rotating male head 223 that is matched with the rotating female head 211. Further, the rotary female head 211 and the rotary male head 223 are both made of silver chloride material.
The plane of the second aperture 212 and the plane of the first aperture 222 are suitable for fitting when the electrode set 22 and the electrode holder 21 are in a connection state. In this embodiment, the first aperture 222 is disposed at an end of the electrode contact 221 remote from the conductive paste chamber 224; the second aperture 212 and the first aperture 222 are adapted to form a passage for the passage of a conductive paste when the electrode set 22 and the electrode holder 21 are in a connected state.
In the present embodiment, the number of the second apertures 212 is greater than the first apertures 222, and the sizes of the second apertures 212 are not all the same and are smaller than the sizes of the first apertures 222. Further, the first holes 222 are two circular holes, and the first holes 222 are uniformly arranged on the surface of the electrode contact 221; the second holes 212 are six circular holes, and the second holes 212 are uniformly formed on the surface of the conductive device.
In this embodiment, the conductive device is provided with a test unit including a test circuit board 213 that measures impedance and an indicator lamp 214 that displays the impedance state. When the impedance state is abnormal, that is, the conductive paste of the electroencephalogram acquisition potential is insufficient, the brightness or the color of the indicator lamp 214 changes, so that an operator is prompted to timely supplement the conductive paste. Further, in the present embodiment, when the amount of the conductive paste of the electroencephalogram collection potential is normal, the indicator lamp 214 is always in a green state, and when the impedance state is abnormal, the indicator lamp 214 changes to yellow.
Inside the conductive paste chamber 224 is provided a permeable membrane 225 for maintaining pressure balance, and an end of the conductive paste chamber 224 remote from the electrode contact 221 is provided with a knob 226 for rotating the electrode group 22.
In this embodiment, the external device 4 includes a power supply module 41 for supplying power to the electroencephalogram cap, a connection unit 48 for connecting with the plug 3, a processing module 44, and a display module 46. Further, the external device 4 further includes a signal amplifying module 42, an analog-to-digital conversion module 43, a storage module 45, and an operating system 47.
An electroencephalogram acquisition method sequentially comprises the following steps:
step A: the main body 1 is sleeved on the head, and the position of the electric acquisition assembly 2 is adjusted.
And (B) step (B): and fixing the plug 3 on a designated device and starting the electroencephalogram cap to work.
Step C: the position of the electrode group 22 is adjusted according to the amount of the conductive paste stored in the electrode holder 21, so as to adjust the replenishment rate of the conductive paste.
In this embodiment, the step a is refined to step A1 and step A2.
Step A1: all the electrode groups 22 are removed and the body 1 is fitted over the head.
Step A2: and adjusting the positions of the electric acquisition assemblies 2 to enable each electric acquisition assembly 2 to be arranged at the position of an electroencephalogram acquisition potential.
In this embodiment, the step B is refined into a step B1, a step B2, a step B3, and a step B4.
Step B1: the plug 3 is inserted into the external device 4, and the plug 3 is communicated with the connection unit 48.
Step B2: all the electrode groups 22 are fixedly installed on the electrode seat 21, and the positions of the electrode groups 22 are adjusted, so that a certain amount of conductive paste is released from the conductive paste cavity 224, and the conductive paste reaches the electroencephalogram acquisition potential positions along the first holes 222 and the second holes 212.
Step B3: the positions of the electrode sets 22 are sequentially adjusted so that the channels formed by the first apertures 222 and the second apertures 212 are in a minimum or closed position.
Step B4: and starting the electroencephalogram detection system and the electroencephalogram cap.
In this embodiment, the step C is refined into a step C1, a step C2, a step C3, and a step C4.
Step C1: in the detection process, the condition of the indicator lamp 214 is observed in real time, and when the color of the indicator lamp 214 is changed from green to yellow, the steps C2, C3 and C4 are implemented.
Step C2: the knob 226 is turned to make the first hole 222 and the smallest circular hole in the second hole 212 form a channel, and the conductive paste in the conductive paste cavity 224 passes through the channel to the electroencephalogram potential collecting position to supplement the conductive paste at the electroencephalogram potential collecting position.
Step C3: if the color of the indicator light 214 remains yellow, the knob 226 is continued to be turned so that the first aperture 222 forms a channel with the larger circular hole in the second aperture 212.
Step C4: if the color of the indicator light 214 returns to green, the knob 226 is turned to the initial position, and the channel formed by the first aperture 222 and the second aperture 212 is closed.
In other embodiments, the number of the electrical collection assemblies 2 provided on each electroencephalogram cap may be one, two, three, five, eight, ten, fifteen, twenty, thirty, forty, fifty or more, and the number of the electrical collection assemblies 2 is set based on different detection purposes, and the number difference does not affect the achievement of the design purpose of the present invention.
In other embodiments, the conductive device may also be a rotating male head, and the surface of the electrode contact 221 is provided with a rotating female head matched with the surface. Or the conductive device and the electrode contact are fixed by other modes such as a clamping structure, screw/bolt fixation and the like, so that the main design purpose of the invention can be realized.
In other embodiments, the materials of the rotating female head 211 and the rotating male head 223 may be conductive other materials, and the difference of conductivity caused by different materials may affect the detection result to some extent, but not affect the achievement of the main design object of the present invention.
In other embodiments, the channels formed by the first apertures 222 and the second apertures 212 may be disposed on the side of the electrode contacts 221, and the design may be achieved for substantially the purpose of the present invention, although such a design may cause some degree of conductive paste flow blockage. Accordingly, the plane of the second hole 212 and the plane of the first hole 222 may not be completely bonded, which may lead to the conductive paste being in a complementary state, but the design purpose of the present invention may be achieved to some extent.
In other embodiments, the number of the first holes 222 and the second holes 212 may be other values, and the first holes 222 and the second holes 212 may be triangular, square, hexagonal or other shapes, and the differences between the numbers and the shapes do not affect the design of the present invention.
In other embodiments, the number of first apertures 222 may be greater than the second apertures 212, and the first apertures 222 may not all be the same size and smaller than the second apertures 212. As long as the positions of the electrode groups can be adjusted, various channel radiuses exist between the first holes/the second holes, so that the supplementing speed of the conductive paste can be controlled more accurately, and the design purpose of the invention can be realized.
In other embodiments, the indicator light 214 may also indicate an abnormal impedance state through other color changes or brightness changes, as long as the operator knows its meaning in advance. Even in other embodiments, the test circuit board 213 and the indicator lamp 214 may not be provided, and the design objective of the present invention may be achieved by merely checking and determining the amount of the conductive paste according to the working experience of the operator or manually.
In other embodiments, the permeable membrane 225 may not be disposed inside the conductive paste chamber 224.
In other embodiments, the knob 226 may be disposed at other positions of the conductive paste chamber 224, and even the knob 226 may not be disposed, so long as the operator can rotate/move the electrode set 22, thereby achieving the design object of the present invention.
In other embodiments, the external device 4 may not include the signal amplifying module 42, the analog-to-digital conversion module 43, the storage module 45 and the operating system 47. Or the structure and the function of the external device 4 are changed according to other use requirements, and the differentiated selection of the external device 4 does not affect the realization of the design purpose of the invention.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.
Claims (5)
1. An electroencephalogram cap is characterized in that: the electric collecting device comprises a main body (1) sleeved on the head, at least one electric collecting assembly (2) and a plug (3) used for being connected with external equipment (4), wherein the electric collecting assembly (2) comprises an electrode seat (21) and an electrode group (22); the electrode seat (21) is fixedly arranged on the surface of the main body (1), and the electrode group (22) is detachably connected with the electrode seat (21);
the electrode holder (21) is provided with a conductive device for collecting scalp potential information and a lead (215), two ends of the lead (215) are respectively connected with the conductive device and the plug (3), and a second hole (212) suitable for the passage of conductive paste is formed in the conductive device;
the electrode group (22) comprises a conductive paste cavity (224) for storing conductive paste and an electrode contact (221), wherein the electrode contact (221) is communicated with the inside of the conductive paste cavity (224), a first hole (222) suitable for the conductive paste to pass through is formed in the electrode contact (221), and the structure of the electrode contact (221) is suitable for being fixed and electrically communicated with the conductive device;
a permeable membrane (225) for maintaining pressure balance is arranged in the conductive paste cavity (224), and a knob (226) for rotating the electrode group (22) is arranged at one end of the conductive paste cavity (224) away from the electrode contact (221);
-the number of second apertures (212) is greater than the first apertures (222), the second apertures (212) not being all the same size and smaller than the first apertures (222), or-the number of first apertures (222) is greater than the second apertures (212), the first apertures (222) not being all the same size and smaller than the second apertures (212);
a plurality of channel radiuses exist between the first hole (222) and the second hole (212), when the knob (226) rotates, the first hole (222) and the smallest circular hole in the second hole (212) form a channel, so that the conductive paste in the conductive paste cavity (224) reaches an electroencephalogram acquisition potential position through the channel, the conductive paste at the electroencephalogram acquisition potential position is supplemented without removing the main body (1) of the electroencephalogram cap, and the position of the electrode group (22) is adjusted by rotating the knob (226), so that the channel radiuses between the first hole (222) and the second hole (212) are changed, and the supplementing speed of the conductive paste is adjusted;
the plane of the second hole (212) and the plane of the first hole (222) are suitable for being attached when the electrode group (22) and the electrode seat (21) are in a connection state;
the conductive device is provided with a test unit, and the test unit comprises a test circuit board (213) for measuring impedance and an indicator lamp (214) for displaying impedance state; when the conductive paste is normally stored, the indicator lamp (214) is in a green state, and when the impedance state is abnormal, the indicator lamp (214) changes to yellow.
2. The electroencephalogram cap according to claim 1, wherein: the first hole (222) is arranged at one end of the electrode contact (221) away from the conductive paste cavity (224); the second aperture (212) and the first aperture (222) are adapted to form a channel for the passage of a conductive paste when the electrode set (22) and the electrode holder (21) are in a connected state.
3. The electroencephalogram cap according to claim 1, wherein: the conductive device is a rotary female head (211), and a rotary male head (223) matched with the rotary female head (211) is arranged on the surface of the electrode contact (221).
4. The electroencephalogram cap according to claim 1, wherein: the number of the electric acquisition assemblies (2) is multiple, and each electric acquisition assembly (2) corresponds to one brain electricity acquisition potential.
5. An electroencephalogram acquisition method, characterized in that an electroencephalogram cap according to any one of claims 1 to 4 is used, the method comprising the steps of:
step A: sleeving the main body (1) on the head, and adjusting the position of the electric acquisition assembly (2);
and (B) step (B): fixing the plug (3) on a designated device and starting the electroencephalogram cap to work;
step C: and adjusting the position of the electrode group (22) according to the storage quantity of the conductive paste at the position of the electrode seat (21) so as to adjust the supplementing speed of the conductive paste.
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| CN202011370537.9A CN112515683B (en) | 2020-11-30 | 2020-11-30 | Electroencephalogram cap and electroencephalogram acquisition method |
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| CN202011370537.9A CN112515683B (en) | 2020-11-30 | 2020-11-30 | Electroencephalogram cap and electroencephalogram acquisition method |
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| CN112515683B true CN112515683B (en) | 2023-10-27 |
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| CN113349804A (en) * | 2021-06-28 | 2021-09-07 | 上海大学 | Flexible extensible quick automatic conductive paste injection device |
| CN114916920A (en) * | 2022-07-18 | 2022-08-19 | 中国科学院自动化研究所 | Self-adaptive rotary adjusting contact and wearable brain function detection device |
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| CN106580305A (en) * | 2016-11-28 | 2017-04-26 | 安徽华米信息科技有限公司 | Physiological signal acquisition patch |
| CN208893158U (en) * | 2018-05-18 | 2019-05-24 | 蕲春千年艾科技有限公司 | Simple moxibustion cylinder |
| CN110786852A (en) * | 2019-10-29 | 2020-02-14 | 北京机械设备研究所 | Dry-wet universal electroencephalogram sensing electrode |
| WO2020220162A1 (en) * | 2019-04-28 | 2020-11-05 | 武汉格林泰克科技有限公司 | Electroencephalogram electrode cap |
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| CN106580305A (en) * | 2016-11-28 | 2017-04-26 | 安徽华米信息科技有限公司 | Physiological signal acquisition patch |
| CN208893158U (en) * | 2018-05-18 | 2019-05-24 | 蕲春千年艾科技有限公司 | Simple moxibustion cylinder |
| WO2020220162A1 (en) * | 2019-04-28 | 2020-11-05 | 武汉格林泰克科技有限公司 | Electroencephalogram electrode cap |
| CN110786852A (en) * | 2019-10-29 | 2020-02-14 | 北京机械设备研究所 | Dry-wet universal electroencephalogram sensing electrode |
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