CN209059203U - A kind of electroencephalographic electrode and electrode fixing device - Google Patents

Abstract

The utility model provides a kind of electroencephalographic electrode, including electrode base, it is equipped with spheroid chamber in the electrode base, is equipped with universal sphere, the universal sphere connection electrode conducting wire in the spheroid chamber, the universal sphere is equipped with connecting rod, the connecting rod is equipped with electrode body, and liquid storage chamber is equipped in the electrode body, is equipped with telescopic device in the liquid storage chamber, the free end of the telescopic device is equipped with contact head, and the contact head is contacted with head is equipped with first through hole, the second through-hole；The setting of the universal sphere can allow the electrode body arbitrarily to swing, it can allow the better contact head of the contact head, the setting of the telescopic device can allow liquid storage chamber described in contact head forced compression, the liquid storage chamber reduced space, conduction liquid can be flowed out by the first through hole and second through-hole, it ensure that and be in electrical contact with scalp, keep the signal that the contact between the contact head and scalp is more reliable, contact impedance is lower, acquires more stable.

Description

A kind of electroencephalographic electrode and electrode fixing device

Technical field

The utility model relates to a kind of equipment for making electroencephalogram.

Specifically, being to be related to a kind of electroencephalographic electrode and electrode fixing device.

Background technique

Brain wave is brain in activity, and the synchronous postsynaptic potential occurred of a large amount of neurons is formed after summation, is led to It crosses and places electrode in scalp, be connected via wires to electroence phalograph and amplify, the potential change of brain cell group can be put Greatly and records and get off to be formed electroencephalogram (electroencephalogram, EEG) with waveform plot.Remember according in electroencephalogram Record the wave rate of curvilinear motion, wave amplitude, waveform, position phase, quantity, symmetry, reactivity, regularity, occur mode and E.E.G when Between, the main components such as distribution spatially, classified, calculated and comparative analysis, make the diagnosis of normal or abnormal electroencephalogram, Objective basis is provided for clinical diagnosis and treatment disease and research work.

In traditional brain wave monitoring device, the wearing process of brain electrode is sufficiently complex, and operating process is loaded down with trivial details, tediously long；To institute There is brain electrode after the installation is completed, then the electrode holder on lead noseplate is pressed into the sequence at the positions such as bilateral volume, top, pillow, temporo one by one It clips, and it is noted that electrode holder puts sequence, so far a patient electroencephalographic electrode installation process side, which accuses, is completed.General patient does Conventional 16, which lead electroencephalogram, will install 19 brain electrodes, and the more skilled operator of installation brain electrode generally uses 6-8 minutes, unskilled Person was with 10 minutes, or even arrived 15-20 minutes, and whole operation process is very loaded down with trivial details, and easily got position wrong, presss from both sides wrong electrode, Doctor spends in the placement of brain electrode a large amount of time, and working efficiency is very low, and especially in physical examination, person to be checked flocks together, doctor Raw is even more to be nervously fumbled.Electrode holder is dismantled after finishing a electroencephalogram case history, when sequence and the erection sequence of disassembly are inconsistent When can make wire intertwist together, separated time at this moment will be removed with a large amount of quality time, and can usually draw during separated time Conducting wire is dragged, is if things go on like this easy for causing the welding position of brain electrode the end of a thread to be broken, to be delayed inspection.In conducting wire and brain electricity Crocodile clip is generally used in the connection of pole, however crocodile clip easily gets rusty, in order to not influence normal use, it is necessary to often replace crocodile Fish folder, this will result in the very big expense of hospital, wastes resource.

Traditional brain electricity cap is made of rubber strip elastic band, because of patient's head dummy individual difference, to pull adjustment electricity every time The size and shape of polar cap affects the working efficiency of doctor；Moreover, can only be rough according to 10-20 rule when placing brain electrode Position Approximate is estimated, since everyone head dummy is inconsistent, it has not been convenient to go to measure with scale label, can not accomplish precise volume to electrode Change and place, so that collected figure is just not necessarily the corresponding position of system requirements, influences diagnosis effect.

The rubber strip of brain electricity cap or the service life of soft band are shorter, and to just will appear after a certain period of time, pulling force is uneven to be showed As, cause individual electrode contact bad, at this moment, doctor will adjust rubber strip, but influence whether again with good electrode, this Sample repeatedly adjusts, and wastes a large amount of Diagnostic Time, affects working efficiency.

For doctor when removing brain electrode to patient, often one unclamps brain electricity cap rubber strip, and some electrodes will voluntarily be fallen To on the ground, the meeting also having is wrapped on patient's hair, causes unnecessary embarrassment, also cause unnecessary trouble to patient.

Utility model content

The purpose of the utility model is to overcome the shortcoming of above-mentioned traditional technology, a kind of electroencephalographic electrode and electricity are provided Extremely fixed device.

The purpose of this utility model is reached by following technical measures: a kind of electroencephalographic electrode, including electrode base Seat, the electrode base is interior to be equipped with spheroid chamber, and universal sphere, the universal sphere connection electricity are rotatably equipped in the spheroid chamber Polar conductor, the universal sphere are equipped with the connecting rod for extending the electrode base, and the free end of the connecting rod is equipped with electricity Pole ontology, the electrode body is interior to be equipped with liquid storage chamber, is equipped with telescopic device, the free end of the telescopic device in the liquid storage chamber Equipped with contact head, the contact head inner hollow, one end that the contact head is contacted with head is equipped with several first through hole, described Contact head is also equipped with the second through-hole penetrated through with the liquid storage chamber.

As an improvement the electrode body is rounding bench-type, the electrode body is outer towards the electrode base It is equipped with baffle week, the height of the baffle is less than the length of the connecting rod.

As a further improvement, cavernous body is placed in the liquid storage chamber, the cavernous body adsorbs conduction liquid.

As a further improvement, the telescopic device is spring, and is located in the liquid storage chamber.

As a further improvement, one end of the contact head contact head is arcwall face.

The utility model additionally provides a kind of electrode fixing device, including the support frame coincideing with head, support frame as described above Between be equipped with several elasticas, support frame as described above and elastica are equipped with the restriction elastic ring being arranged according to electrode arrangement, described It limits and places a kind of above-mentioned electroencephalographic electrode in elastic ring.

As an improvement support frame as described above is silica gel support frame, and support frame as described above includes the circle coincideing with head circumference The first support frame, first support frame is equipped with the second support frame, is additionally provided with and described second on first support frame The vertical third support frame of support frame.

As a further improvement, the elastic ring that limits is the elastic metallic ring equipped with opening, the restriction elastic ring The internal diameter of nature is more than or equal to the diameter of the connecting rod and is less than the internal diameter of the baffle.

By adopting the above-described technical solution, a kind of electroencephalographic electrode, including electrode base, it is equipped in the electrode base Spheroid chamber, is rotatably equipped with universal sphere in the spheroid chamber, the universal sphere connection electrode conducting wire, on the universal sphere Equipped with the connecting rod for extending the electrode base, the free end of the connecting rod is equipped with electrode body, in the electrode body Equipped with liquid storage chamber, telescopic device is equipped in the liquid storage chamber, the free end of the telescopic device is equipped with contact head, the contact head Inner hollow, one end that the contact head is contacted with head be equipped with several first through hole, the contact head also equipped with it is described Second through-hole of liquid storage chamber perforation.

Compared with prior art, the utility model has the advantages that: the setting of the universal sphere can allow the electrode sheet Body is arbitrarily swung, and can allow the better contact head of the contact head, guarantee reliability when the contact head and head contact with Comfort；The setting of the telescopic device can allow liquid storage chamber described in contact head forced compression, and the liquid storage chamber reduced space is led It is electro-hydraulic to be flowed out by the first through hole and second through-hole, it ensure that and be in electrical contact with scalp, make the contact head and head More reliable, contact impedance is lower for contacting between skin, the signal of acquisition is more stable；It solves conduction liquid deficiency and generates baseline drift The technical issues of shifting, wave distortion, noise also generates therewith.

The utility model is described in further detail with reference to the accompanying drawings and detailed description.

Detailed description of the invention

Attached drawing 1 is a kind of electroencephalographic electrode described in the utility model and a kind of electrode fixing device cooperation schematic diagram.

Attached drawing 2 is a kind of structural schematic diagram of electroencephalographic electrode described in the utility model.

Attached drawing 3 is a kind of another status architecture schematic diagram of electroencephalographic electrode described in the utility model.

Attached drawing 4 is a kind of structural schematic diagram of electrode fixing device described in the utility model.

Specific embodiment

Embodiment one: as shown in attached drawing 1 to attached drawing 3, a kind of electroencephalographic electrode, including electrode base 1, the electrode base It is equipped with spheroid chamber in 1, universal sphere 2 is rotatably equipped in the spheroid chamber, the setting of the universal sphere 2 guarantees the electrode Reliability and comfort when ontology 4 and head contact；The 2 connection electrode conducting wire 5 of universal sphere, on the universal sphere 2 Equipped with the connecting rod 3 for extending the electrode base 1, the free end of the connecting rod 3 is equipped with the electrode body 4 of rounding bench-type, The electrode body 4 is equipped with baffle 6 towards the periphery of the electrode base 1, and the height of the baffle 6 is less than the connecting rod 3 Length；The setting of the inverted round stage, which can be convenient, allows the restriction elastic ring to be inserted in；The restriction elastic ring is inserted in because of institute The setting for stating baffle 6 will not skid off.

It is equipped with liquid storage chamber 41 in the electrode body 4, cavernous body, the cavernous body absorption are placed in the liquid storage chamber 41 Conduction liquid；Can be in addition to preventing conduction liquid from leaking out the problem of it is also ensured that conduction liquid abundance, and cavernous body squeeze when Conduction liquid can be discharged.

Telescopic device 42 is equipped in the liquid storage chamber 41, the telescopic device 42 is spring；One end of the spring connects The electrode body 4, the other end of the spring are equipped with the contact head 43, and one end of 43 contact head of contact head is arc Shape face, 43 inner hollow of contact head, one end that the contact head 43 is contacted with head are equipped with several first through hole 431, institute It states contact head 43 and is also equipped with the second through-hole 432 penetrated through with the liquid storage chamber 41；The setting of the arcwall face can keep with The formedness of scalp contact；Generate pressure when 43 contact head of contact head and compress the spring, the spring-compressed it is same When can compress the cavernous body, the conduction liquid of the cavernous body can be flowed into the contact head 43 by second through-hole 432 Internal cavity 433, then flowed out by the first through hole 431 and contacted with head.

Electrode base 1 in the present embodiment, universal sphere 2, connecting rod 3, electrode body 4, electrode cable 5, telescopic device 42, Contact head 43 is conductive material, preferably Au, Ag/AgCl.

Embodiment two: as shown in Figure 1 and Figure 4, the utility model additionally provides a kind of electrode fixing device, including coincide with head Silica gel support frame 7, the silica gel support frame 7 is because the material of silica gel wears soft comfortable and has certain elasticity, Ke Yishi With different head circumferences, support frame as described above 7 includes circular first support frame 71 coincideing with head circumference, on first support frame 71 Equipped with the second support frame 72, the third support frame vertical with second support frame 72 is additionally provided on first support frame 71 73；Several elasticas 74, institute are equipped between first support frame 71, second support frame 72 and the third support frame 73 Stating elastica 74 can may be other soft extension rubber rubber bands, support frame as described above 7 and elastica 74 for silicone elastomer line It is equipped with the restriction elastic ring 75 being arranged according to the electrode arrangement of international 10-20 system, the setting of the elastica 74 is in order to full On the foot elastica 74 and first support frame 71, second support frame 72 and the third support frame 73 described in setting Meet the electrode arrangement requirement of the world 10-20 system when limiting elastic ring 75, because the elastic force limitation of the silica gel support frame 7 was both It allows user's comfortable wearing, and can be very good to require to limit according to electrode arrangement by electrode, the restriction elastic ring 75 A kind of electroencephalographic electrode described in interior placement above-described embodiment one；A kind of above-mentioned electroencephalographic electrode accurately can be placed into limit Fixed position solves because can not accomplish that precise quantification is placed to electrode, to influence diagnosis effect.

The restriction elastic ring 75 is the elastic metallic ring equipped with opening, the internal diameter for limiting 75 nature of elastic ring Diameter more than or equal to the connecting rod 3 and the internal diameter less than the baffle 6；Opening elastic metallic ring, which can be convenient placement, to be implemented A kind of electroencephalographic electrode described in example one.

The utility model is in use, will first allow the restriction elastic ring 75 to be set to the connecting rod 3 by the electrode body 4 Position allows support frame as described above 7 to be set to the head of patient, slightly adjusts and presses and depress the electrode base 1, presses the electricity Pole base 1, spring-compressed described in 43 stress of contact head, the cavernous body in the liquid storage chamber 41 are pressurized simultaneously, and conduction liquid is logical Cross the first through hole 431 and the outflow of the second through-hole 432, ensure that and be in electrical contact with scalp, make the contact head 43 and scalp it Between contact it is more reliable, contact impedance is lower, acquisition signal it is more stable；It solves conduction liquid deficiency and generates baseline drift, wave The technical issues of shape distortion, noise also generates therewith；The utility model is simple and easy to use quick, improves work efficiency.

Claims (8)

1. a kind of electroencephalographic electrode, including electrode base, it is characterised in that: be equipped with spheroid chamber, the ball in the electrode base Universal sphere, the universal sphere connection electrode conducting wire are rotatably equipped in body cavity, the universal sphere, which is equipped with, extends institute The connecting rod of electrode base is stated, the free end of the connecting rod is equipped with electrode body, is equipped with liquid storage chamber, institute in the electrode body It states and is equipped with telescopic device in liquid storage chamber, the free end of the telescopic device is equipped with contact head, and the contact head inner hollow is described One end that contact head is contacted with head is equipped with several first through hole, and the contact head is also equipped with the penetrated through with the liquid storage chamber Two through-holes.

2. a kind of electroencephalographic electrode according to claim 1, it is characterised in that: the electrode body is rounding bench-type, institute It states electrode body and is equipped with baffle towards the periphery of the electrode base, the height of the baffle is less than the length of the connecting rod.

3. a kind of electroencephalographic electrode according to claim 1, it is characterised in that: it is placed with cavernous body in the liquid storage chamber, The cavernous body adsorbs conduction liquid.

4. a kind of electroencephalographic electrode according to claim 1, it is characterised in that: the telescopic device is spring, and is located at In the liquid storage chamber.

5. a kind of electroencephalographic electrode according to claim 1, it is characterised in that: one end of the contact head contact head is Arcwall face.

6. a kind of electrode fixing device, including the support frame coincideing with head, it is characterised in that: if being equipped between support frame as described above Dry elasticity line, support frame as described above and elastica are equipped with the restriction elastic ring being arranged according to electrode arrangement, the restriction elastic ring It is interior to place a kind of electroencephalographic electrode as claimed in claim 2.

7. a kind of electrode fixing device according to claim 6, it is characterised in that: support frame as described above is silica gel support frame, And support frame as described above includes circular first support frame coincideing with head circumference, first support frame is equipped with the second support frame, The third support frame vertical with second support frame is additionally provided on first support frame.

8. a kind of electrode fixing device according to claim 7, it is characterised in that: the elastic ring that limits is equipped with opening Elastic metallic ring, it is described limit elastic ring nature internal diameter be more than or equal to the connecting rod diameter and be less than the gear The internal diameter of plate.