CN205795689U

CN205795689U - A kind of brain electrode

Info

Publication number: CN205795689U
Application number: CN201620547607.6U
Authority: CN
Inventors: 汪子锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-06-07
Filing date: 2016-06-07
Publication date: 2016-12-14
Anticipated expiration: 2026-06-07

Abstract

This utility model relates to a kind of brain electrode；Electrode stem, crossbeam, snap close and the bracing frame that this brain electrode contains electrode body, is vertically arranged, electrode body is fixed on the lower end of electrode stem, the left end upper surface of crossbeam is provided with electrode stem and installs through hole, electrode stem is arranged on electrode stem and installs in through hole, electrode stem and electrode stem are installed and are threaded connection between through hole, bracing frame is arranged on below crossbeam right-hand member, the upper surface of crossbeam is provided with a crossbeam groove, the direction of this crossbeam groove is vertical with the length direction of crossbeam, snap close is arranged on the upper surface of crossbeam, and snap close is locked across after crossbeam groove；The upper surface middle part of the electrode body of hollow-core construction is provided with through hole, is provided with under shed in the middle part of lower surface, and the inside of electrode body connects by upper through hole and hollow electrode stem are internal, is in communication with the outside by under shed；This utility model installing/dismounting is quick, position adjustment is convenient, flexible reliable with contacting of head.

Description

A kind of brain electrode

Technical field

This utility model relates to a kind of brain wave monitoring device, particularly to a kind of brain electrode for brain wave monitoring.

Background technology

Brain wave be brain when activity, the postsynaptic potential that a large amount of neurons synchronize to occur is formed after summation, it Being the bioelectrical activity overall reflection in cerebral cortex or scalp surface of cranial nerve cell, the monitoring of brain wave is the most extensively used In existing clinical practice.

In tradition brain wave monitoring device, the wearing process of brain electrode is sufficiently complex, and operating process is loaded down with trivial details, tediously long.Typically In the case of, first have to make patient check hair washing the previous day, to remove head oils and fats；During inspection, first special elastic cap is worn On head, then with comb by placing the hair of brain electrode position separately, expose scalp, with 75% ethanol scalp to go Fat, then by brain electrode by desired location (as bilateral volume, push up, rest the head on, temples etc.) be clipped under elastic, and push down head with under brain electrode Send out, the most just complete the installation of an electrode；After all brain electrodes install, then by the electrode holder that leads on noseplate by Bilateral volume, push up, rest the head on, the order at the position such as temporo clips one by one, and it is noted that order put by electrode holder (gathers after signal completes by this Reverse sequence presss from both sides back), so far patient's EEG electrode installation process side has accused.General patient does conventional 16 and leads electroencephalogram 19 brain electrodes are installed, the more skilled operator of brain electrode are installed 6-8 minute to be used, unskilled person with 10 minutes, Even arriving 15-20 minute, whole operating process is the most loaded down with trivial details, and easily gets position, the wrong electrode of folder, doctor's substantial amounts of time wrong Spending in the placement of brain electrode, work efficiency is the lowest, and particularly when health check-up, person to be checked flocks together, and doctor is the most in a rush. Finish electrode holder to be dismantled after a electroencephalogram case history, wire intertwist can be made to exist when the order of dismounting is inconsistent with erection sequence Together, at this moment will remove separated time with the substantial amounts of quality time, and during separated time, usually can pull wire, the most just Easily cause the welding position fracture of brain electrode the end of a thread, thus be delayed inspection.Conducting wire with the connection of brain electrode are typically adopted With alligator clamp, but alligator clamp easily gets rusty, in order to not affect normal use, it is necessary to often changing alligator clamp, this will result in The expense that hospital is the biggest, wastes resource.

Tradition brain electricity cap uses rubber strip elastic cord to make, and because of patient's head dummy individual variation, wants tractive to adjust electricity every time The size and shape of polar cap, have impact on the work efficiency of doctor；And, can only be rough according to 10-20 rule during placement brain electrode Estimate Position Approximate, owing to everyone head dummy is inconsistent, it has not been convenient to go to measure with scale label, it is impossible to electrode is accomplished precise volume Change and place, so that the figure collected just is not necessarily the correspondence position of system requirements, affect diagnosis effect.

The rubber strip of brain electricity cap or the service life of soft band are shorter, arise that uneven the showing of pulling force after certain time As, cause individual electrode contact bad, at this moment, doctor will adjust rubber strip, but influence whether again with electrode well, this Sample adjusts repeatedly, wastes substantial amounts of Diagnostic Time, have impact on work efficiency.

Doctor is when taking off brain electrode to patient, and often one unclamps brain electricity cap rubber strip, and some electrodes will drop voluntarily To on the ground, the meeting also having is wrapped on patient's hair, causes unnecessary embarrassment, also causes unnecessary trouble to patient.

There is following point in traditional brain electrode:

A, the installation of tradition brain electrode are that the traction force using flexible material is pressed on electrode crossbeam, allow electrode body and patient Scalp contacts, and flexible material is usually the netted medicated cap using rubber bar to make, and its service life is shorter, when it is aging, and rubber The tractive of leather strap is the most uneven, causes the traction force to each brain electrode inconsistent, makes some brain electrode not fix very well, and In adjustment, also can cause the impact on the brain electrode fixed, waste Diagnostic Time.Therefore, some producers are just horizontal by electrode Draw-in groove on beam makes via into, installs on electrode via with rubber bar, although this method solves brain electrode self falling Problem, but create new problem, after taking off brain electricity cap from patients head, brain electrode still on brain electricity cap, side Just the keeping to brain electrode, more inconvenient carries out chlorination test to brain electrode.

B, the electrode body portion of tradition brain electrode are typically provided with the hygroscopic material (such as Cotton Gossypii) being stained with conductive liquid, electrode body Outside gauze encase, then be enclosed within electrode body with elastic tape, brain electrode is contacted with scalp by conductive liquid.This mode Shortcoming is: owing to electrode body is less, changes when absorbent material, gauze and elastic tape pretty troublesome, when particularly patient is more, does not has Time is changed one by one, does not more accomplish that a people one changes, is so easily generated infection, and the patient having wound more can be produced cross infection.

C, tradition brain electrode supporting plate are realized by movable bolt with the connection of electrode crossbeam, but movable bolt can only use torr Movement in a curve made in certain angle by plate with movable bolt for the center of circle, actually used in, the direction of motion of supporting plate is with different patients Any direction motion is made in the change of capitiform, so causes fixing by auxiliary electrode well.

D, tradition brain electrode may be only available for the brain electricity cap that soft material makes, and (hard material is adjusting brain electrode position Time, it is easy to allow the brain electrode placed come off, make working doctor difficulty strengthen), so cannot be applicable to use hard material The electricity cap that certainly beats one's brains made.

Summary of the invention

The technical problems to be solved in the utility model is: provide a kind of brain electrode for brain wave monitoring, this brain electrode Installing/dismounting is quick, position adjustment is convenient, flexible reliable with contacting of head.

The technical solution of the utility model:

A kind of brain electrode for brain wave monitoring, containing electrode body, possibly together with the electrode stem being vertically arranged, crossbeam, lock Button and bracing frame, electrode body is fixed on the lower end of electrode stem, and the left end upper surface of crossbeam is provided with electrode stem and installs through hole, electrode Bar is arranged on electrode stem and installs in through hole, and electrode stem and electrode stem are installed and be threaded connection between through hole, and bracing frame is arranged on Below crossbeam right-hand member, the upper surface of crossbeam is provided with a crossbeam groove, the direction of this crossbeam groove and the length side of crossbeam To vertically, snap close is arranged on the upper surface of crossbeam, and snap close is locked across after crossbeam groove；Electrode body is electric conductor, crossbeam For insulator.

The inside of electrode body is hollow-core construction, and electrode stem is hollow stem, and the upper surface middle part of electrode body is provided with through hole, electricity Being provided with under shed in the middle part of the lower surface of polar body, the inside of electrode body connects by upper through hole and electrode stem are internal, electrode body interior Portion is in communication with the outside also by under shed, and the lower surface periphery of electrode body is provided with N number of downwardly convex electrode contact head.

Electrode body is up-small and down-big stepped cylinder (such as stepped cylindrical body), under shed generally circular in shape, and electrode connects Contact be shaped as cylindrical, the lower surface of electrode contact head is sphere, and N number of electrode contact head is evenly distributed on electrode body Lower surface periphery, the upper end of electrode stem is fixed with adjusting handle, during actual application, can be fixed on electrode stem by nut as adjusting Joint handwheel.

The lower outside face of electrode body is provided with a ring annular groove, and the internal cavities of electrode body is that upper big and bottom samll shape is empty Chamber.

Outer surface one layer of liquid-adsorption layer being made up of imbibition material of parcel of electrode body bottom, liquid-adsorption layer is opened under described Mouth extends to the inside of electrode body.

Imbibition material is sponge or Cotton Gossypii；Liquid-adsorption layer is used for absorbing conductive liquid, and conductive liquid can be from the upper end of coreless armature bar Inject；Absorb the contact area that the liquid-adsorption layer of conductive liquid increases between electrode body and scalp, make between electrode body and scalp Contact more reliable.

The annular groove in electrode body lower outside face and the internal up big and down small cavity of electrode body are conducive to liquid-adsorption layer at electricity Fixing on polar body, prevents liquid-adsorption layer from coming off from electrode body.

When wrapping up liquid-adsorption layer (i.e. using as wet electrode) in electrode body, the space between each electrode contact head can prevent Liquid-adsorption layer is too extruded and makes conductive liquid flow away, it is ensured that contacting between electrode body with scalp is more reliable.When in electrode body not During parcel liquid-adsorption layer (i.e. using as dry electrode), the space between each electrode contact head can accommodate hair, so that electrode contact Head with contact between scalp more reliable.

Electrode stem is electric conductor.

Bracing frame contains horizontal gripper shoe, and the upper surface of gripper shoe connects a ball by montant is fixing, and crossbeam is right The bottom of end is provided with a ball bowl, and ball is arranged in ball bowl, and the external diameter of ball mates with the internal diameter size of ball bowl, so that ball In ball bowl freely rotatable.

Time actually used, the lower surface of gripper shoe and the head contact of people, the combination of ball and ball bowl can make gripper shoe with The radian of head part free deflection in certain angle, it is ensured that reliability when gripper shoe and head contact and comfortableness.

The bottom of crossbeam right-hand member is provided with a protruding block, and ball bowl is arranged on the bottom of protruding block.

Containing the lock bolt of bar shaped in snap close, one end of lock bolt is connected through the hinge on crossbeam, and the other end of lock bolt is around hinge Chain rotates upwardly and downwardly and is bent downwardly to form clamping hook, and clamping hook is connected to downwards the end of crossbeam so that lock bolt is locked, and lock bolt is locked Time tight, lock bolt, across on crossbeam groove, is additionally provided with outwardly handle at clamping hook；Handle is used for opening and locking lock Button；When upwards pulling handle, snap close is opened；When downward pulling handle, snap close is locked.

The lower surface of lock bolt is provided with a lock bolt groove, and the direction of this lock bolt groove is vertical with the length direction of crossbeam, When lock bolt is locked, lock bolt groove is corresponding with the position of crossbeam groove.

The cross section of lock bolt groove and crossbeam groove is semicircle, when snap close is locked, and lock bolt groove and crossbeam groove Being grouped together into a manhole, this manhole fixes bar or rubber for the electrode that brain electrode is arranged on brain electricity cap On leather strap.

The using method of this brain electrode is as follows:

First, doctor is placed to patients head brain electricity cap and adjustment fixes；Then, open the snap close of brain electrode, will Brain electrode, near brain electricity cap, makes the electrode on brain electricity cap fix bar or rubber bar is positioned in crossbeam groove, then lock brain electrode Snap close, at this moment, brain electrode is just installed on the head of a patient；Waveform by electrode impedance measuring circuit or Computer display can Judge that brain electrode is the most normal with contacting of patients head, as abnormal, rotate the adjusting handle on brain electrode, makes brain electrode Electrode body and gripper shoe are close to patient's scalp with suitable pressure under the traction force effect of brain electricity cap, until finally installing brain Electrode.

After EEG signals has detected, the snap close of brain electrode can be opened, by the brain electrode electrode from brain electricity cap one by one Remove on fixing bar or rubber bar；When preserving brain electrode, available flexible material encases electrode body, then it is recessed to be enclosed within annular with elastic tape Fix on groove, the oxidation of the electrode body that so can slow down, reduce the outside air corrosion to electrode body.

The beneficial effects of the utility model:

Crossbeam two ends the most of the present utility model are respectively provided with electrode body and bracing frame, and the height of electrode body can pass through electrode The rotation of bar regulates, and in bracing frame, the angle of gripper shoe freely can be adjusted by the cooperation of ball and ball bowl, whole brain electricity Pole not only position adjustment is flexible, convenient, and electrode body is relatively reliable with contacting of patients head；It addition, when to a brain electricity When pole carries out position adjustment, other brain electrode adjusted is unaffected, and improves the work effect of whole brain wave monitoring Rate.

2. this utility model the most only need to open snap close, makes the electrode on brain electricity cap fix bar or rubber bar is placed on In the crossbeam groove of brain electrode, then locking snap close；Snap close only need to be opened, by brain electrode electricity from brain electricity cap during dismounting Extremely fixing and take off on bar or rubber bar, installing/dismounting is quick and convenient.

The liquid-adsorption layer of electrode body bottom the most of the present utility model increases the contact area between electrode body and scalp, makes electricity Contacting between polar body with scalp is more reliable；Space between electrode contact head can accommodate hair, moreover it is possible to prevents liquid-adsorption layer by mistake Point extruding and make conductive liquid flow away, make to contact between electrode body with scalp more reliable.

The annular groove in electrode body lower outside face the most of the present utility model and the internal up big and down small cavity of electrode body have It is beneficial to liquid-adsorption layer fixing in electrode body, prevents liquid-adsorption layer from coming off from electrode body, and the structure of electrode body bottom makes more Change liquid-adsorption layer quick and convenient (directly being torn by liquid-adsorption layer), a people one can be realized and change, prevent cross infection.

(4), accompanying drawing explanation:

Fig. 1 is one of the structural representation of brain electrode for brain wave monitoring；

Fig. 2 is the two of the structural representation of the brain electrode for brain wave monitoring；

Fig. 3 is the bottom surface structure schematic diagram of electrode body；

Fig. 4 is that the brain electrode monitored for brain wave is arranged on the structural representation on brain electricity cap.

(5), detailed description of the invention:

Embodiment one: see Fig. 1, Fig. 3, Fig. 4, in figure, the brain electrode for brain wave monitoring uses as dry electrode, brain Containing electrode body 6, the electrode stem 1 being vertically arranged, crossbeam 2, snap close and bracing frame in electrode, electrode body 6 is fixed on electrode stem 1 Lower end, the left end upper surface of crossbeam 2 is provided with electrode stem 1 and installs through hole, and electrode stem 1 is arranged on electrode stem and installs in through hole, electricity Pole bar 1 and electrode stem are installed and are threaded connection between through hole, and bracing frame is arranged on below crossbeam 2 right-hand member, the upper table of crossbeam 2 Face is provided with a crossbeam groove 4, and the direction of this crossbeam groove 4 is vertical with the length direction of crossbeam 2, and snap close is arranged on crossbeam 2 Upper surface on, snap close across after crossbeam groove 4 lock；Electrode body 6 is electric conductor, and crossbeam 2 is insulator.

The inside of electrode body 6 is hollow-core construction, and electrode stem 1 is hollow stem, and the upper surface middle part of electrode body 6 is provided with through hole 7, it is provided with under shed 8 in the middle part of the lower surface of electrode body 6, the inside of electrode body 6 connects by upper through hole 7 and electrode stem 1 are internal, electricity The inside of polar body 6 is in communication with the outside also by under shed 8, and the lower surface periphery of electrode body 6 is provided with 12 downwardly convex electrodes Contact head 9.

Space between each electrode contact head 9 can accommodate hair, more may be used so that contacting between electrode contact head 9 and scalp Lean on.

Electrode body 6 is up-small and down-big stepped cylindrical body, under shed 8 generally circular in shape, being shaped as of electrode contact head 9 Cylindrical, the lower surface of electrode contact head 9 is sphere, and 12 electrode contact heads 9 are evenly distributed on the lower surface week of electrode body 6 Limit, the upper end of electrode stem 1 is fixed with adjusting handle 10, during actual application, can be fixed on by nut on electrode stem 1 as regulation hands Wheel 10.

The lower outside face of electrode body 6 is provided with a ring annular groove 11, and the internal cavities of electrode body 6 is upper big and bottom samll shape Cavity.

Electrode stem 1 is electric conductor.

Bracing frame contains horizontal gripper shoe 13, and the upper surface of gripper shoe 13 connects a ball 14 by montant 5 is fixing, The bottom of crossbeam 2 right-hand member is provided with a ball bowl 15, and ball 14 is arranged in ball bowl 15, the external diameter of ball 14 and the internal diameter of ball bowl 15 Size is mated, so that ball 14 is freely rotatable in ball bowl 15.

The bottom of crossbeam 2 right-hand member is provided with a protruding block 16, and ball bowl 15 is arranged on the bottom of protruding block 16.

Time actually used, the lower surface of gripper shoe 13 and the head contact of people, the combination of ball 14 and ball bowl 15 can make to prop up Fagging 13 is with radian free deflection in certain angle of head part, it is ensured that reliability when gripper shoe 13 and head contact is with easypro Adaptive.

Containing the lock bolt 301 of bar shaped in snap close, one end of lock bolt 301 is connected on crossbeam 2 by hinge 17, lock bolt 301 The other end rotate upwardly and downwardly and be bent downwardly to form clamping hook 302 around hinge 17, clamping hook 302 is connected to downwards the right side of crossbeam 2 End is so that lock bolt 301 is locked, and when lock bolt 301 is locked, lock bolt 301, across on crossbeam groove 4, is additionally provided with at clamping hook 302 Outwardly handle 303；Handle 303 is used for opening and locking snap close；When upwards pulling handle 303, snap close is opened；When to During lower pulling handle 303, snap close is locked.

The lower surface of lock bolt 301 is provided with the length of a lock bolt groove 304, the direction of this lock bolt groove 304 and crossbeam 2 Direction is vertical, and when lock bolt 301 is locked, lock bolt groove 304 is corresponding with the position of crossbeam groove 4.

The cross section of lock bolt groove 304 and crossbeam groove 4 is semicircle, when snap close is locked, and lock bolt groove 304 and horizontal stroke Beam groove 4 is grouped together into a manhole, and this manhole for being arranged on the electrode of brain electricity cap by brain electrode 81 On fixing bar 80.

The using method of this brain electrode 81 is as follows:

First, doctor is placed to patients head brain electricity cap and adjustment fixes；Then, open the snap close of brain electrode 81, By brain electrode 81 near brain electricity cap, make the electrode on brain electricity cap fix bar 80 and be positioned in crossbeam groove 4, then locking brain electrode 81 Snap close, at this moment, brain electrode 81 is just installed on the head of a patient；By electrode impedance measuring circuit or the waveform of Computer display Can determine that brain electrode 81 is the most normal with contacting of patients head, as abnormal, rotate the adjusting handle 10 on brain electrode 81, makes Electrode body 6 and the gripper shoe 13 of brain electrode 81 are close to patient's scalp with suitable pressure, directly under the traction force effect of brain electricity cap To finally installing brain electrode 81.

After EEG signals has detected, the snap close of brain electrode 81 can be opened, by brain electrode 81 one by one from brain electricity cap Electrode is fixed and is removed on bar 80；When preserving brain electrode 81, available flexible material encases electrode body 6, then is enclosed within annular with elastic tape Fix on groove 11, the oxidation of the electrode body 6 that so can slow down, reduce the outside air corrosion to electrode body 6.

Embodiment two: see Fig. 2, Fig. 3, Fig. 4, numbers identical with embodiment one in figure, the same meaning of representative, its work Making process the most essentially identical, something in common does not repeats, and is a difference in that: this is used for the brain electrode of brain wave monitoring as wet electrode Using, outer surface one layer of liquid-adsorption layer being made up of imbibition material 12 of parcel of electrode body 6 bottom, liquid-adsorption layer 12 is also by under shed 8 inside extending to electrode body 6.

Imbibition material is sponge or Cotton Gossypii；Liquid-adsorption layer 12 is used for absorbing conductive liquid, and conductive liquid can upper from coreless armature bar 1 End injects；The liquid-adsorption layer 12 absorbing conductive liquid increases the contact area between electrode body 6 and scalp, makes electrode body 6 and head Contact between skin is more reliable.

The annular groove 11 in electrode body 6 lower outside face and the internal up big and down small cavity of electrode body 6 are conducive to liquid-adsorption layer 12 fixing in platform electrode body 6, prevent liquid-adsorption layer 12 from coming off from electrode body 6.

Space between each electrode contact head 9 can prevent liquid-adsorption layer 12 from too being extruded and making conductive liquid flow away, it is ensured that electricity Contacting between polar body 6 and scalp is more reliable.

Claims

1. for brain wave monitoring a brain electrode, containing electrode body, it is characterized in that: possibly together with the electrode stem being vertically arranged, Crossbeam, snap close and bracing frame, electrode body is fixed on the lower end of electrode stem, and the left end upper surface of crossbeam is provided with electrode stem and installs logical Hole, electrode stem is arranged on electrode stem and installs in through hole, and electrode stem and electrode stem are installed and be threaded connection between through hole, bracing frame Being arranged on below crossbeam right-hand member, the upper surface of crossbeam is provided with a crossbeam groove, the direction of this crossbeam groove and crossbeam Length direction is vertical, and snap close is arranged on the upper surface of crossbeam, and snap close is locked across after crossbeam groove；Electrode body is conduction Body, crossbeam is insulator.

Brain electrode for brain wave monitoring the most according to claim 1, is characterized in that: the inside of described electrode body is sky Core structure, electrode stem is hollow stem, and the upper surface middle part of electrode body is provided with through hole, is provided with down and opens in the middle part of the lower surface of electrode body Mouthful, the inside of electrode body connects by upper through hole and electrode stem are internal, and the inside of electrode body is in communication with the outside also by under shed, The lower surface periphery of electrode body is provided with N number of downwardly convex electrode contact head.

Brain electrode for brain wave monitoring the most according to claim 2, is characterized in that: described electrode body is up-small and down-big Stepped cylinder, under shed generally circular in shape, electrode contact head be shaped as cylindrical, N number of electrode contact head uniformly divides Cloth is fixed with adjusting handle in the lower surface periphery of electrode body, the upper end of electrode stem.

Brain electrode for brain wave monitoring the most according to claim 2, is characterized in that: the lower outside of described electrode body Face is provided with a ring annular groove, and the internal cavities of electrode body is upper big and bottom samll shape cavity.

5., according to the brain electrode for brain wave monitoring described in Claims 2 or 3 or 4, it is characterized in that: described electrode body bottom Outer surface parcel one layer of liquid-adsorption layer being made up of imbibition material, liquid-adsorption layer extends in electrode body also by described under shed Portion.

6., according to the brain electrode for brain wave monitoring described in claim 1 or 2 or 3 or 4, it is characterized in that: described electrode stem For electric conductor.

7., according to the brain electrode for brain wave monitoring described in claim 1 or 2 or 3 or 4, it is characterized in that: support frame as described above Containing horizontal gripper shoe, the upper surface of gripper shoe connects a ball by montant is fixing, and the bottom of crossbeam right-hand member is provided with one Individual ball bowl, ball is arranged in ball bowl, and the external diameter of ball mates with the internal diameter size of ball bowl, so that ball freely turns in ball bowl Dynamic.

Brain electrode for brain wave monitoring the most according to claim 7, is characterized in that: the bottom of described crossbeam right-hand member sets Having a protruding block, ball bowl is arranged on the bottom of protruding block.

9., according to the brain electrode for brain wave monitoring described in claim 1 or 2 or 3 or 4, it is characterized in that: in described snap close Containing the lock bolt of bar shaped, one end of lock bolt is connected through the hinge on crossbeam, the other end of lock bolt rotate upwardly and downwardly around hinge and to Under be bent to form clamping hook, clamping hook be connected to downwards crossbeam end so that lock bolt locking, lock bolt locking time, lock bolt across On crossbeam groove, at clamping hook, it is additionally provided with outwardly handle.

Brain electrode for brain wave monitoring the most according to claim 9, is characterized in that: on the lower surface of described lock bolt Being provided with a lock bolt groove, the direction of this lock bolt groove is vertical with the length direction of crossbeam, when lock bolt is locked, lock bolt groove with The position of crossbeam groove is corresponding.