阅读说明：本技术 一种便携无线式多导联脑电图电极帽 (Portable wireless multi-lead electroencephalogram electrode cap ) 是由 田佳 周毅 刘力斗 于 2020-12-14 设计创作，主要内容包括：本发明提供一种便携无线式多导联脑电图电极帽,属于医疗器械技术领域,该便携无线式多导联脑电图电极帽,包括多个安装座和弹性带,多个弹性带之分别固定连接于多个安装座的圆周表面,且多个弹性带与安装座之间呈“十”字交叉状,多个弹性带的下端固定有头带,头带的下端左右两侧均固定有锁紧带,两个锁紧带之间设有卡扣机构,卡扣机构与两个锁紧带之间均连接以实现将其固定,多个安装座的下端均开设有插槽,多个插槽的内壁均活动插接有插座；本装置使得医护人员在对患者进行脑电图检查需要翻身时,电极不易脱落,且安装时操作简单,固定稳定,使得脑电图检检查效率更高。(The invention provides a portable wireless multi-lead electroencephalogram electrode cap, which belongs to the technical field of medical instruments and comprises a plurality of mounting seats and elastic belts, wherein the elastic belts are respectively and fixedly connected to the circumferential surfaces of the mounting seats, the elastic belts and the mounting seats are crossed in a cross shape, the lower ends of the elastic belts are fixedly provided with head belts, the left side and the right side of the lower end of each head belt are respectively provided with a locking belt, a buckle mechanism is arranged between the two locking belts, the buckle mechanism is connected with the two locking belts to fix the locking belts, the lower ends of the mounting seats are respectively provided with a slot, and the inner walls of the slots are respectively movably inserted with a socket; the device enables medical workers to turn over the patient when electroencephalogram examination is carried out on the patient, the electrodes are not easy to fall off, and the device is simple to operate and stable to fix during installation, so that the electroencephalogram examination efficiency is higher.)

1. A portable wireless multi-lead electroencephalogram electrode cap is characterized in that: the elastic band fixing device comprises a plurality of mounting seats (1) and elastic bands (2), wherein the elastic bands (2) are fixedly connected to the circumferential surfaces of the mounting seats (1) respectively, cross-shaped and a plurality of elastic bands (2) are arranged between the mounting seats (1), a head band (3) is fixed to the lower end of each elastic band (2), locking bands (4) are fixed to the left side and the right side of the lower end of each head band (3), a buckling mechanism (5) is arranged between each locking band (4), each buckling mechanism (5) is connected with each locking band (4) to fix the corresponding elastic band, slots (8) are formed in the lower end of the mounting seats (1), a plurality of sockets (7) are movably inserted into the inner walls of the slots (8), an electrode (6) is fixed to one end, far away from the slots (8), of each socket (7), a plurality of clamping mechanisms are arranged in the slots (8), The clamping mechanism is connected with the socket (7) to fix the clamping mechanism in the slot (8), and the guiding mechanism is connected with the socket (7) to realize the linear motion of the clamping mechanism.

2. The portable wireless multi-lead electroencephalogram electrode cap of claim 1, wherein: each group of clamping mechanisms comprises a rack plug (15), a screw rod groove (17), a gear (14), two screw rods (13), a nut (18), two clamping blocks (21) and an accommodating groove (16), the screw rod grooves (17), the screw rods (13), the clamping blocks (21) and the nuts (18) are respectively arranged, the two screw rod grooves (17) are respectively arranged on the left inner wall and the right inner wall of the slot (8), the two screw rods (13) are respectively and rotatably connected with the far inner walls of the two screw rod grooves (17), the left end and the right end of the gear (14) are respectively fixed between the end parts close to the two screw rods (13), the rack plug (15) is fixed at the rear end of the socket (7), the rack plug (15) is meshed with the gear (14), the accommodating groove (16) is arranged on the rear inner wall of the slot (8), the rack plug (15) is movably inserted in the accommodating groove (16), two nut (18) threaded connection is respectively in the circumferential surface of two lead screws (13), and the screw direction on two lead screws (13) circumferential surface is opposite, two grip block (21) are fixed in the lower extreme of two nuts (18) respectively, two all be equipped with a set of stop gear in lead screw groove (17), be connected in order to realize making left and right linear motion between stop gear and grip block (21).

3. The portable wireless multi-lead electroencephalogram electrode cap of claim 2, wherein: each group of fixing mechanisms comprises an extrusion rod (11), a pressing cap (12), a driving block (25), a second spring (24), a spring groove (23) and a fixing groove (22), the spring groove (23) is arranged in the mounting seat (1), the spring groove (23) is positioned at the lower side of the screw rod groove (17), the second spring (24) is fixed on the upper inner wall of the spring groove (23), the second spring (24) is sleeved on the circumferential surface of the extrusion rod (11), the upper end and the lower end of the extrusion rod (11) respectively movably penetrate through the lower inner wall of the screw rod groove (17) and the lower end of the mounting seat (1) and extend downwards, the fixing groove (22) is arranged on the upper inner wall of the screw rod groove (17), the extrusion rod (11) is movably inserted in the fixing groove (22), the driving block (25) is fixed on the circumferential surface of the extrusion rod (11) positioned in the spring groove (23), and the upper end of the driving block (25) is fixed with the lower end of the second spring (24), and the pressing cap (12) is fixed at the lower end of the extrusion rod (11).

4. The portable wireless multi-lead electroencephalogram electrode cap of claim 3, wherein: every group stop gear all includes two T type spout (19) and T type slider (20), two inner wall around screw groove (17) is seted up respectively in T type slider (20), T type spout (19) and T type slider (20) phase-match, two T type spout (19) sliding connection respectively in two T type sliders (20).

5. The portable wireless multi-lead electroencephalogram electrode cap of claim 4, wherein: the length of the meshing between the rack plug (15) and the gear (14) is matched with the length of the screw rod groove (17).

6. The portable wireless multi-lead electroencephalogram electrode cap of claim 5, wherein: the length from the inner wall of one side of the fixing groove (22) close to the slot (8) to the notch of the screw rod groove (17) is matched with the length of the clamping block (21).

7. The portable wireless multi-lead electroencephalogram electrode cap of claim 6, wherein: every group guiding mechanism all includes two guide blocks (9) and guide way (10), two inner wall about slot (8) is seted up respectively in guide way (10), two the homogeneous phase matches between guide block (9) and guide way (10), and two guide blocks (9) sliding connection respectively in two guide way (10).

8. The portable wireless multi-lead electroencephalogram electrode cap of claim 7, wherein: each group of the buckling mechanisms (5) comprises a clamping sleeve (51), a bayonet (52), an inserted rod (53), a clamping block (54) and a first spring (55), the bayonet (52), the inserted link (53) and the fixture block (54) are all provided with two, the cutting sleeve (51) and the two inserted rods (53) are respectively fixed between the end parts which are close to the two locking belts (4), the interior of the cutting sleeve (51) is of a cavity structure, the two bayonets (52) are respectively arranged at the front end and the rear end of the cutting sleeve (51), the first spring (55) is fixed between the close end parts of the two inserted rods (53), the two fixture blocks (54) are respectively fixed between the far end parts of the two inserted rods (53), the two first springs (55) are movably inserted in the clamping sleeve (51), and the two clamping blocks (54) are movably clamped in the two clamping openings (52) respectively.

9. The portable wireless multi-lead electroencephalogram electrode cap of claim 8, wherein: the circumferential surfaces of the installation seats (1) are wrapped with soft sleeves.

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a portable wireless multi-lead electroencephalogram electrode cap.

Background

The electroencephalogram is a graph obtained by recording spontaneous biopotentials of the brain from the scalp by a precise electronic instrument in an enlarged manner, and is a spontaneous and rhythmic electrical activity of a brain cell group recorded by an electrode. And carrying out conventional electroencephalogram, dynamic electroencephalogram monitoring and video electroencephalogram monitoring.

When patients are examined by electroencephalogram in general hospitals, the electrodes are mostly installed in an adhesion mode, namely, the conductive paste is firstly coated on the placement position of the scalp, then the electrodes are pressed and attached on the scalp, and the electrodes are taken down to clean the head after the examination is finished.

Disclosure of Invention

The invention aims to provide a portable wireless multi-lead electroencephalogram electrode cap, and aims to solve the problems that in the prior art, electrodes are mostly arranged in an adhesion mode, namely, conductive paste is coated on the placement position of a scalp, then the electrodes are pressed and attached on the scalp, and the electrodes are taken down to clean the head after examination is finished.

In order to achieve the purpose, the invention provides the following technical scheme:

a portable wireless multi-lead electroencephalogram electrode cap comprises a plurality of mounting seats and elastic belts, wherein the elastic belts are fixedly connected to the circumferential surfaces of the mounting seats respectively, the elastic belts and the mounting seats are in a cross shape, the lower ends of the elastic belts are fixedly provided with head belts, the left side and the right side of the lower end of each head belt are fixedly provided with locking belts, a buckling mechanism is arranged between the two locking belts, the buckling mechanisms are connected with the two locking belts to fix the locking belts, the lower ends of the mounting seats are respectively provided with a slot, the inner walls of the slots are movably inserted with sockets, one ends of the sockets far away from the slots are respectively fixedly provided with an electrode, a clamping mechanism, a guide mechanism and two groups of fixing mechanisms are arranged in the slots, and the clamping mechanisms are connected with the sockets to fix the sockets in the slots, the guide mechanism is connected with the socket to realize the linear motion of the guide mechanism.

As a preferable scheme of the invention, each group of clamping mechanisms comprises a rack plug, two screw rod grooves, two gears, two screw rods, two nuts, two clamping blocks and two accommodating grooves, wherein the two screw rod grooves are respectively arranged on the left inner wall and the right inner wall of the inserting groove, the two screw rods are respectively and rotatably connected with the far inner walls of the two screw rod grooves, the left end and the right end of the gear are respectively fixed between the end parts close to the two screw rods, the rack plug is fixed at the rear end of the socket and is meshed with the gears, the accommodating groove is arranged on the rear inner wall of the inserting groove, the rack plug is movably inserted in the accommodating groove, the two nuts are respectively in threaded connection with the circumferential surfaces of the two screw rods, the thread directions of the circumferential surfaces of the two screw rods are opposite, and the two clamping blocks are respectively fixed at the lower ends of the two nuts, two the screw rod inslot all is equipped with a set of stop gear, be connected in order to realize making left and right linear motion between stop gear and the grip block.

As a preferable scheme of the present invention, each of the fixing mechanisms includes an extrusion rod, a pressing cap, a driving block, a second spring, a spring groove, and a fixing groove, the spring groove is formed in the mounting seat, the spring groove is located at a lower side of the screw groove, the second spring is fixed to an upper inner wall of the spring groove, the second spring is sleeved on a circumferential surface of the extrusion rod, upper and lower ends of the extrusion rod movably penetrate through a lower inner wall of the screw groove and a lower end of the mounting seat respectively and extend downward, the fixing groove is formed in an upper inner wall of the screw groove, the extrusion rod is movably inserted into the fixing groove, the driving block is fixed to the circumferential surface of the extrusion rod located in the spring groove, the upper end of the driving block is fixed to a lower end of the second spring, and the pressing cap is fixed to the lower end of the extrusion rod.

As a preferable scheme of the invention, each group of limiting mechanisms comprises two T-shaped sliding grooves and two T-shaped sliding blocks, the two T-shaped sliding blocks are respectively arranged on the front inner wall and the rear inner wall of the screw rod groove, the T-shaped sliding grooves are matched with the T-shaped sliding blocks, and the two T-shaped sliding grooves are respectively connected in a sliding manner in the two T-shaped sliding blocks.

In a preferred embodiment of the present invention, the length of the engagement between the rack plug and the gear matches the length of the screw groove.

As a preferable scheme of the invention, the length from the inner wall of the fixing groove close to one side of the slot to the notch of the screw rod slot is matched with the length of the clamping block.

As a preferable scheme of the invention, each group of the guide mechanisms comprises two guide blocks and two guide grooves, the two guide grooves are respectively formed in the left inner wall and the right inner wall of the slot, the two guide blocks are matched with the guide grooves, and the two guide blocks are respectively connected in the two guide grooves in a sliding manner.

As a preferred scheme of the present invention, each set of the fastening mechanisms includes two clamping sleeves, two clamping ports, two insertion rods, two clamping blocks, and first springs, the two clamping sleeves, the two insertion rods, and the two clamping blocks are respectively fixed between the end portions of the clamping sleeves close to the two locking bands, the interior of the clamping sleeve is a cavity structure, the two clamping ports are respectively opened at the front and rear ends of the clamping sleeve, the first springs are fixed between the end portions of the two insertion rods close to each other, the two clamping blocks are respectively fixed between the end portions of the two insertion rods far away from each other, the two first springs are movably inserted into the clamping sleeves, and the two clamping blocks are respectively movably clamped in the two clamping ports.

As a preferable scheme of the present invention, the circumferential surfaces of the plurality of mounting seats are all wrapped with soft sleeves.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the scheme, the electroencephalogram examination device can be worn on the head when the electroencephalogram examination is carried out through the plurality of elastic belts and the installation seat, then the electrode is fixed in the installation seat, the installation seat is firstly lifted up, because the lower end of the pressing cap has no pressure, the driving block can be attached to the lower inner wall of the spring groove through the elasticity of the second spring, the pressing cap is driven to slide downwards, then the socket is inserted into the slot, due to the fact that the rack plug is meshed with the gear, the rack plug drives the gear to rotate when the socket is inserted into the slot, the gear drives the two lead screws to rotate, the two nuts move towards each other, the two clamping blocks clamp the rack plug, the installation seat is put down, the installation seat is attached to the head through the elasticity of the elastic belts, then the pressing cap is pushed upwards by the head, the pressing cap drives the extrusion rod to be inserted into the fixing groove, the clamping blocks are clamped to be incapable of moving, so that the clamping rack plugs of the two clamping blocks are more stable, the socket is more stable when being fixed in the slot, the electrode is not easy to fall off when medical workers carry out electroencephalogram examination on a patient and need to turn over, and the electroencephalogram examination device is simple to operate and stable in fixing during installation, so that the electroencephalogram examination efficiency is higher.

2. Through the buckle mechanism that is equipped with in this scheme for the patient is when wearing this device at the head, insert in the card sleeve through the inserted bar in the buckle mechanism, and make in the fixture block embedding card mouth, make it can fix in patient's chin department, thereby fix this device more stably at patient's head, be difficult for droing, when needing to open, press the fixture block, make the inserted bar extrude first spring can, can extract, make this device fixed and more convenient when dismantling, and easy operation, more have the practicality.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a front perspective view of the present invention;

FIG. 2 is a bottom perspective view of the present invention;

FIG. 3 is a partial side cross-sectional view of the present invention at the mount;

FIG. 4 is a side cross-sectional view of the present invention;

FIG. 5 is an enlarged view of a portion of the invention at B in FIG. 4;

FIG. 6 is a main sectional view of the present invention;

fig. 7 is a partial enlarged view of the invention at a in fig. 6.

In the figure: 1. a mounting seat; 2. an elastic band; 3. a headband; 4. a locking band; 5. a buckle mechanism; 51. a card sleeve; 52. a bayonet; 53. inserting a rod; 54. a clamping block; 55. a first spring; 6. an electrode; 7. a socket; 8. a slot; 9. a guide block; 10. a guide groove; 11. an extrusion stem; 12. pressing the cap; 13. a screw rod; 14. a gear; 15. a rack plug; 16. a receiving groove; 17. a screw rod groove; 18. a nut; 19. a T-shaped chute; 20. a T-shaped slider; 21. a clamping block; 22. fixing grooves; 23. a spring slot; 24. a second spring; 25. the block is driven.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-7, the present invention provides the following technical solutions:

a portable wireless type multi-lead electroencephalogram electrode cap comprises a plurality of mounting seats 1 and elastic belts 2, wherein the elastic belts 2 are fixedly connected to the circumferential surfaces of the mounting seats 1 respectively, the elastic belts 2 and the mounting seats 1 are in a cross shape, the lower ends of the elastic belts 2 are fixedly provided with head bands 3, the left side and the right side of the lower end of each head band 3 are fixedly provided with locking belts 4, a buckle mechanism 5 is arranged between the two locking belts 4, the buckle mechanism 5 is connected with the two locking belts 4 to fix the locking belts, the lower ends of the mounting seats 1 are provided with slots 8, the inner walls of the slots 8 are movably inserted with sockets 7, one ends of the sockets 7, far away from the slots 8, are fixedly provided with electrodes 6, clamping mechanisms, guiding mechanisms and two groups of fixing mechanisms are arranged in the slots 8, each clamping mechanism comprises a rack plug 15, a lead screw groove 17, The screw rod grooves 17, the screw rods 13, the nuts 18, the clamping blocks 21 and the accommodating grooves 16 are arranged, the screw rod grooves 17, the screw rods 13, the clamping blocks 21 and the nuts 18 are arranged in two numbers, the two screw rod grooves 17 are respectively arranged on the left inner wall and the right inner wall of the slot 8, the two screw rods 13 are respectively rotatably connected to the far inner walls of the two screw rod grooves 17, the left end and the right end of the gear 14 are respectively fixed between the end parts close to the two screw rods 13, the rack plug 15 is fixed at the rear end of the socket 7 and meshed with the gear 14, the accommodating grooves 16 are arranged on the rear inner wall of the slot 8, the rack plug 15 is movably inserted in the accommodating grooves 16, the two nuts 18 are respectively in threaded connection with the circumferential surfaces of the two screw rods 13, the thread directions of the circumferential surfaces of the two screw rods 13 are opposite, the two clamping blocks 21 are respectively fixed at the lower ends of the two nuts 18, the, A second spring 24, a spring groove 23 and a fixing groove 22, wherein the spring groove 23 is arranged inside the mounting seat 1, the spring groove 23 is positioned at the lower side of the screw rod groove 17, the second spring 24 is fixed at the upper inner wall of the spring groove 23, the second spring 24 is sleeved on the circumferential surface of the extrusion rod 11, the upper end and the lower end of the extrusion rod 11 respectively movably penetrate through the lower inner wall of the screw rod groove 17 and the lower end of the mounting seat 1 and extend downwards, the fixing groove 22 is arranged at the upper inner wall of the screw rod groove 17, the extrusion rod 11 is movably inserted in the fixing groove 22, the driving block 25 is fixed at the circumferential surface of the extrusion rod 11 positioned in the spring groove 23, the upper end of the driving block 25 is fixed with the lower end of the second spring 24, the pressing cap 12 is fixed at the lower end of the extrusion rod 11, a group of limiting mechanisms is arranged in both screw rod grooves 17, the limiting mechanisms are connected with the clamping block 21 to realize left-right linear motion, the clamping mechanism is connected with the socket 7 to realize, the guide mechanism is connected with the socket 7 to realize the linear motion of the guide mechanism.

In the specific embodiment of the invention, when a patient needs to perform electroencephalogram examination, the electrode cap composed of the headband 3, the elastic bands 2 and the mounting base 1 is worn on the head, the headband 3 and the elastic bands 2 have elasticity, so that the electrode cap can be better worn on the head according to the size of the head of the patient and is not easy to slip off, then the electrode cap is inserted into the cutting sleeve 51 through the inserted rod 53 in the buckling mechanism 5, and the fixture block 54 is embedded into the bayonet 52, so that the electrode cap can be fixed at the chin of the patient, the device is fixed on the head of the patient more stably and is not easy to fall off, at this time, by lifting the mounting base 1, because the lower end of the pressing cap 12 has no pressure, at this time, the second spring 24 can enable the driving block 25 to be attached to the lower inner wall of the spring groove 23 through the elasticity of the second spring 24, and drive the pressing cap 12 to slide downwards, and then the socket 7 is inserted, because the rack plug 15 is meshed with the gear 14, the rack plug 15 drives the gear 14 to rotate when the socket 7 is inserted into the slot 8, preferably, the joint of the inner walls of the screw rod 13 and the screw rod groove 17 is wrapped with friction rubber to increase the friction force between the inner walls of the screw rod 13 and the screw rod groove 17, so that the screw rod 13 is not easy to rotate by itself without external force, the position of the screw rod 13 is not easy to deviate, the gear 14 drives the two screw rods 13 to rotate, the two nuts 18 move towards each other due to the opposite thread directions of the two screw rods 13, so that the two clamping blocks 21 clamp the rack plug 15, when the rack plug 15 is inserted into the accommodating groove 16 and reaches the bottom, the clamping blocks 21 clamp the rack plug 15, at the moment, the mounting base 1 is put down, the mounting base 1 is attached to the head through the elasticity of the elastic belt 2, and then the head pushes the pressing cap 12 upwards, so that the pressing cap 12 drives the extruding rod 11 to be inserted into the fixing groove 22, because the length from the inner wall of the fixing groove 22 close to one side of the slot 8 to the notch of the screw rod groove 17 is matched with the length of the clamping block 21, so that the clamping block 21 can be just clamped when the extrusion rod 11 is inserted into the fixing groove 22, the clamping block 21 is clamped and cannot move, because two pressure caps 12 are arranged in each mounting seat 1, the head can be more stable when the pressure caps 12 are jacked up, the other can also fix the clamping block 21 when one of the pressing caps 12 is not pushed up, so that the head is positioned more firmly, thereby leading the two clamping blocks 21 to clamp the rack plug 15 more stably, leading the socket 7 to be fixed in the slot 8 more stably, leading the medical staff to carry out electroencephalogram examination on the patient and needing to turn over, the electrode is not easy to fall off, and the electroencephalogram examination device is simple to operate and stable to fix during installation, so that the electroencephalogram examination efficiency is higher.

Referring to fig. 3 specifically, each group of limiting mechanisms includes two T-shaped sliding grooves 19 and two T-shaped sliding blocks 20, the two T-shaped sliding blocks 20 are respectively opened on the front and rear inner walls of the screw rod groove 17, the T-shaped sliding grooves 19 are matched with the T-shaped sliding blocks 20, and the two T-shaped sliding grooves 19 are respectively connected in the two T-shaped sliding blocks 20 in a sliding manner; when the clamping block 21 moves, the T-shaped sliding groove 19 is driven to slide in the T-shaped sliding block 20, and the clamping block 21 is not easy to shake when sliding and moves more stably because the T-shaped sliding groove 19 is matched with the T-shaped sliding block 20 and is embedded into the T-shaped sliding block 20.

Referring to fig. 5 specifically, since the length of the meshing between the rack plug 15 and the gear 14 is matched with the length of the screw rod groove 17, when the rack plug 15 is inserted into the bottom of the receiving groove 16, the two clamping blocks 21 can just clamp the rack plug 15, and the end parts of the two preferred clamping blocks 21 close to each other are wrapped with rubber sleeves, so that the friction force between the rubber sleeves and the rack plug 15 is increased, and the rack plug 15 is more stably fixed.

Specifically, referring to fig. 3, the length from the inner wall of the fixing groove 22 near the slot 8 to the notch of the screw groove 17 is matched with the length of the clamping block 21, so that the clamping block 21 can be just clamped when the extrusion rod 11 is inserted into the fixing groove 22, and the clamping block 21 is clamped and cannot move.

Referring to fig. 7 specifically, each group of guide mechanisms includes two guide blocks 9 and two guide grooves 10, the two guide grooves 10 are respectively formed in the left and right inner walls of the slot 8, the two guide blocks 9 are matched with the guide grooves 10, and the two guide blocks 9 are respectively slidably connected into the two guide grooves 10; so that when the socket 7 is inserted into the slot 8, the guide block 9 is inserted into the guide slot 10 and slides in the guide slot 10, so that the socket 7 can be more stable when the driving rack plug 15 moves, and can better engage with the gear 14 and drive the gear 14 to rotate.

Specifically, referring to fig. 1, each group of fastening mechanisms 5 includes two clamping sleeves 51, two bayonets 52, two plunger rods 53, two clamping blocks 54 and two first springs 55, wherein the two clamping sleeves 52, the two plunger rods 53 and the two clamping blocks 54 are respectively fixed between the end portions of the clamping sleeves 51 and the end portions of the two locking belts 4 close to each other, the clamping sleeves 51 are of a cavity structure, the two bayonets 52 are respectively arranged at the front end and the rear end of the clamping sleeves 51, the first springs 55 are fixed between the end portions of the two plunger rods 53 close to each other, the two clamping blocks 54 are respectively fixed between the end portions of the two plunger rods 53 far away from each other, the two first springs 55 are movably inserted into the clamping sleeves 51, and the two clamping blocks 54 are respectively movably clamped into the two bayon; make the patient when wearing this device at the head, insert in cutting ferrule 51 through inserted bar 53 in buckle mechanism 5, and make in fixture block 54 imbeds bayonet 52, make it can fix in patient's chin department, thereby fix this device more stably at patient's head, be difficult for droing, when needing to open, press fixture block 54, make inserted bar 53 extrude first spring 55 can, can extract, make this device fixed and when dismantling more convenient, and easy operation, more have the practicality.

Preferably, the circumferential surfaces of the installation bases 1 are wrapped by soft sleeves, so that the installation bases 1 are higher in comfort level when being attached to the heads of patients.

The working principle and the using process of the invention are as follows: when a patient needs to carry out electroencephalogram examination, the head is worn in a cap shape consisting of the headband (3), the elastic belts (2) and the mounting seat (1), then the inserting rod (53) in the buckle mechanism (5) is inserted into the clamping sleeve (51), the clamping block (54) is embedded into the clamping opening (52), the clamping block can be fixed at the chin of the patient and is not easy to fall off, at the moment, the mounting seat (1) is lifted, because the lower end of the pressing cap (12) has no pressure, the second spring (24) can enable the driving block (25) to be attached to the lower inner wall of the spring groove (23) through the elasticity of the second spring (24), the pressing cap (12) is driven to slide downwards, then the socket (7) is inserted into the slot (8), and because the rack plug (15) is meshed with the gear (14), the rack plug (15) drives the gear (14) to rotate when the socket (7) is inserted into the slot (8), gear (14) drives two lead screws (13) and rotates, make two nuts (18) move towards being close to each other, make two grip block (21) with rack plug (15) centre gripping, put down mount pad (1) this moment, make mount pad (1) laminating and head through the elasticity of elastic webbing (2) self, then the head will press cap (12) to push up, make pressure cap (12) drive squeeze bar (11) insert in fixed slot (22), make squeeze bar (11) can just block grip block (21) when inserting in fixed slot (22), make grip block (21) block unable removal, this device makes medical personnel when carrying out the electroencephalogram inspection to the patient and need stand up, the electrode is difficult for droing, and easy operation during the installation, it is fixed stable, make electroencephalogram inspection efficiency higher.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.