CN214804769U

CN214804769U - Adjustable fixing cap for electroencephalogram electrode

Info

Publication number: CN214804769U
Application number: CN202120308161.2U
Authority: CN
Inventors: 刘慧�; 赵旭; 梁迎洁; 胡闯; 覃俊
Original assignee: Wuhan Mental Health Center
Current assignee: Wuhan Mental Health Center
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-11-23
Anticipated expiration: 2031-02-03

Abstract

The utility model discloses a locking cap with adjustable electroencephalogram electrode, it includes stereoplasm head ring and many arch fixed slide above that are fixed in, the medial surface of head ring is fixed with the gasbag packing ring that can fill gassing on the stereoplasm head ring is fixed with first and second fixed band, all be equipped with a plurality of adjustable fixed blocks that can slide above that and fix a position on every fixed slide, adjustable fixed block includes the sliding ring, flexible gasbag and clamp seat, the sliding ring cover is located on the fixed slide, the one end and the sliding ring fixed connection of flexible gasbag, the other end and the tight seat fixed connection of clamp, but the tight seat electrode slice of clamp presss from both sides tight or release electroencephalogram. The adjustable fixing block can move and be positioned along the fixed slide way, so that the electrode plate can be more accurately aligned to the corresponding test position on the head; the inner diameter of the head ring can be adjusted by inflating and deflating the air bag cushion ring, so that the applicability is good; the electrode plate can be clamped or released by the clamping seat, and is easy to disassemble and assemble and convenient to use.

Description

Adjustable fixing cap for electroencephalogram electrode

Technical Field

The utility model belongs to electrode auxiliary fixing equipment for electroencephalogram testing, in particular to an adjustable fixing cap for electroencephalogram electrodes.

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. The electrode fixing points on the existing electroencephalogram electrode cap are usually not adjustable, and the electrode fixed at the electrode fixing points is easy to cause that a part of electrode slices in the electrode cap can not be attached to the scalp of a testee due to the change of the head shape and the size of the wearer. Therefore, there is a need to provide a novel electrode fixing cap, which can properly adjust the electrode fixing position, and can flexibly adjust the distance between the electrode plate and the scalp after the electrode fixing position is properly adjusted, so as to ensure that the electrode plate is tightly attached to the scalp.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fixing cap with adjustable electroencephalogram electrode, which aims to overcome the defects in the prior art.

The utility model provides an above-mentioned technical problem's technical scheme as follows: an adjustable fixing cap for an electroencephalogram electrode, which comprises a hard head ring and a plurality of arched fixing slideways fixed on the hard head ring, a first fixing band and a second fixing band are radially and symmetrically fixed on the hard head ring, nylon buttons matched with each other are arranged at the lower ends of the first fixing band and the second fixing band, an inflatable and deflatable air bag gasket is fixed on the inner side surface of the head ring, a plurality of adjustable fixed blocks which can slide on the fixed slide ways and are positioned are arranged on each fixed slide way, the adjustable fixed block comprises a sliding ring, a telescopic air bag and a clamping seat, the sliding ring is sleeved on the fixed slideway, a locking bolt is connected with the sliding ring through a thread, one end of the telescopic air bag is fixedly connected with the slip ring, the other end of the telescopic air bag is fixedly connected with the clamping seat, the clamping seat can clamp or release the electrode plate of the electroencephalogram, and the air bag gasket and the telescopic air bag are respectively and correspondingly communicated with an air charging and discharging pipe with a valve.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, fixed slide includes the longitudinal slide that three fore-and-aft directions extended and the transverse slide that six left right directions extended, every the both ends of longitudinal slide all respectively with head ring fixed connection, every transverse slide only one end with head ring fixed connection, the other end upwards extends and is close to rather than adjacent one longitudinal slide.

The adoption of the further scheme has the beneficial effects that the middle longitudinal slide way can be in line connection correspondence with a plurality of test points such as the forehead midpoint, the central point, the vertex and the pillow point on the head, so that the adjustable fixed block on the slide way can be aligned and positioned with the points to ensure that the electrode plate is tightly attached to the test points in the following process, and similarly, the left and right longitudinal slide ways can also correspond to a plurality of test points.

Furthermore, the three longitudinal slideways are arranged in parallel at intervals, two ends of the middle longitudinal slideway are fixedly connected with two points which are opposite to each other in the radial direction on the head ring, and the other two longitudinal slideways are symmetrically distributed on the left side and the right side of the middle longitudinal slideway.

The electrode fixing device has the advantages that the electrode fixing device is convenient for fixing the electrodes of the test points on the horizontal position, and comprises the arrangement and the positioning of the electrode adjustable fixing blocks of the test points above the two ears.

Furthermore, six transverse slideways are divided into two groups and symmetrically distributed on the left side and the right side of the head ring, and the transverse slideways in each group are arranged in parallel at intervals.

The further scheme has the beneficial effects of good symmetry and convenience in adjustment.

Further, the clamping seat comprises a square seat body, the top surface of the seat body is fixedly connected with the top surface of the telescopic air bag, an inverted T-shaped clamping groove is formed in the lower surface of the seat body, a clamping piece and a clamping spring are arranged in the clamping groove, the clamping spring is clamped between the clamping piece and the in-groove bottom surface of the clamping groove, and an insertion hole for inserting the power supply electrode piece into the clamping groove is formed in the side surface of the seat body.

Adopt above-mentioned further scheme's beneficial effect to be, the simple structure of above-mentioned clamp seat, the dismouting of electrode slice is all comparatively convenient and press from both sides the fixed effect after tight better, is difficult for removing and drops.

Furthermore, handles extending out of the clamping grooves are arranged on two sides of the clamping piece.

Adopt the beneficial effect of above-mentioned further scheme to be convenient for make the piece of clamp upwards pull up in order to vacate the space that the power supply piece inserted.

Compared with the prior art, the utility model discloses a technological effect and advantage:

the adjustable fixing block on the fixed slide way can move along the slide way and be positioned, so that the electrode plate can be more accurately aligned to the corresponding test position on the head after adjustment; the inner side of the head ring is provided with the air bag gasket, so that the inner diameter of the head ring can be adjusted to a proper degree through inflation and deflation of the head ring, better applicability is ensured, and meanwhile, the electrode plates at the forehead and the root of the ear can be directly compressed and fixed by the air bag gasket; the adjustable fixing block is provided with a telescopic air bag and a clamping seat, so that on one hand, the electrode plate can be flexibly clamped or disassembled through the clamping seat, and on the other hand, the electrode plate after being clamped can be better attached to the scalp through the telescopic air bag; the whole structure is simple, the applicability is good, and the use is convenient.

Drawings

Fig. 1 is a schematic view of an adjustable electroencephalogram electrode fixing cap provided by the present invention;

FIG. 2 is a schematic view of a longitudinal slide of FIG. 1 with a head ring and adjustable retaining block attached thereto;

FIG. 3 is a schematic view of the telescopic air bag and the clamping seat in the adjustable fixing block of FIG. 2 (the handle is not shown);

FIG. 4 is a schematic view of the electrode sheet clamped in the clamping seat of FIG. 3 (the handle is not shown);

fig. 5 is an axial view of the clamping shoe.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a head ring; 2. fixing the slideway; 3. a first securing strap; 4. a second securing strap; 5. an airbag cushion; 6. an adjustable fixed block; 7. a slip ring; 8. a telescopic air bag; 9. a clamping seat; 10. locking the bolt; 11. an electrode sheet; 12. an air charging and discharging pipe; 13. a base body; 14. a clamping groove; 15. a clamping piece; 16. a clamping spring; 17. an insertion opening; 18. a handle; 19. and an electrode lead.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, if terms indicating orientation such as "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc. are used, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 5, the utility model provides an electroencephalogram electrode adjustable fixing cap, which comprises a hard head ring 1 and a plurality of arched fixed slideways 2 fixed on the hard head ring 1, wherein the hard head ring 1 is radially and symmetrically fixed with a first fixing band 3 and a second fixing band 4, the lower ends of the first fixing band 3 and the second fixing band 4 are provided with nylon buttons matched with each other, the inner side surface of the head ring 1 is fixed with an air bag gasket 5 capable of being inflated and deflated, each fixed slideway 2 is provided with a plurality of adjustable fixing blocks 6 capable of sliding and positioning on the fixed slideway 2, each adjustable fixing block 6 comprises a sliding ring 7, an expansion air bag 8 and a clamping seat 9, the sliding ring 7 is sleeved on the fixed slideway 2 and the sliding ring 7 is in threaded connection with a locking bolt 10, one end of the expansion air bag 8 is fixedly connected with the sliding ring 7, and the other end is fixedly connected with the clamping seat 9, the clamping seat 9 can clamp or release an electrode plate 11 of an electroencephalogram, and the air bag gasket 5 and the telescopic air bag 8 are respectively and correspondingly communicated with an inflation and deflation pipe 12 with a valve.

It should be noted that the locking bolt should be screwed before the slip ring moves on the fixed slideway, and after the slip ring moves in place to align the adjustable fixed block with the on-head test position, the bolt is screwed for positioning. The telescopic air bag expands and contracts when inflated and contracts when deflated.

In an embodiment of the present invention, the fixed slideway 2 comprises three longitudinal slideways extending in the front-back direction and six lateral slideways extending in the left-right direction, each of which is connected to the head ring 1 and the other end of each longitudinal slideway, wherein the two ends of each longitudinal slideway are respectively connected to the head ring 1 and the other end of each lateral slideway is connected to the head ring 1 and the other end of each lateral slideway extends upward and is close to the longitudinal slideway.

It should be noted that only one end of the transverse slideway is fixed, and the other end of the transverse slideway is not fixed, so that the adjustable fixing block which moves and is adjusted on the longitudinal slideway is not blocked, continuous adjustment is ensured, adjustment is more convenient, and alignment can be more accurate.

In an embodiment of the present invention, three of the longitudinal sliding ways are disposed at intervals in parallel, two ends of the middle longitudinal sliding way are fixedly connected to two diametrically opposite points on the head ring 1, and the other two longitudinal sliding ways are symmetrically disposed on the left and right sides of the middle longitudinal sliding way. Six horizontal slide divide equally into two sets ofly and symmetric distribution in the left and right sides of head ring 1, in every group the horizontal slide parallel interval is filled.

It should be noted that the transverse slideway of the symmetrical cloth enables the whole fixing cap to be more attractive, and after one side of the fixing cap is aligned to the other side of the fixing cap, the adjustable fixing blocks at the symmetrical positions of the other side of the fixing cap can be adjusted by reference, so that the fixing cap is more efficient and convenient.

In an embodiment of the present invention, as shown in fig. 3 to 5, the clamping seat 9 includes a square seat body 13, the top surface of the seat body 13 is fixedly connected to the top surface of the telescopic airbag 8, the lower surface of the seat body 13 is provided with an inverted T-shaped clamping groove 14, a clamping sheet 15 and a clamping spring 16 are arranged in the clamping groove 14, the clamping spring 16 is clamped between the clamping sheet 15 and the inner bottom surface of the clamping groove 14, the side surface of the seat body 13 is provided with an insertion hole 17 for inserting the electrode sheet 11 into the clamping groove 14, and after the electrode sheet is inserted, the electrode wire 19 of the electrode sheet extends outwards from the insertion hole and is electrically connected to the corresponding testing device.

In an embodiment of the present invention, as shown in fig. 5, the clamping piece 15 is provided with handles 18 extending out of the clamping groove 14 at two sides, and the handles may be rod-shaped, protruding pieces, etc.

In addition, in order to ensure that each electrode plate is tightly attached to the scalp of a testee in use, the end face of the seat body 13 facing the scalp can be provided with a temperature or pressure sensor, the lower side contact surface of the sensor is flush with the lower end face of the electrode plate clamped behind the clamping groove, when the electrode plate is tightly attached to the scalp, the sensor is tightly attached to the scalp at the same time, once the electrode plate is not tightly attached to the scalp, the sensor is also abnormal in temperature or pressure due to the fact that the sensor is not tightly attached to the scalp, then the sensor can send an abnormal signal to the controller, and the controller can enable the alarm mechanism to send an alarm signal (sound or light signal) so as to prompt an operator to adjust.

The basic principle of the utility model is that each electrode plate 11 is inserted and clamped in each corresponding clamping seat 9 before use, then the fixing cap is worn on the head of a tested person, the nylon fastener of the first and the second fixing bands is locked at the chin of the tested person in a lap joint manner, the head ring 1 can be sleeved on the head of the tested person (the inner diameter of the head ring can be adjusted by inflating the air bag gasket 5) before the lap joint is locked, then each adjustable fixing block 6 is adjusted in a sliding manner to be aligned with each testing position and the locking bolt 10 is screwed, then each telescopic air bag 8 is properly extended by inflating, each electrode plate can be pressed and attached at each corresponding testing position by the extended telescopic air bag, after all the electrode plates are fixed in place, the testing can be started, after the testing is finished, each telescopic air bag and the air bag gasket are deflated firstly, then the connection of the first and the second fixing bands is released, the fixing cap can be taken down from the head of the tested person, each electrode pad can then be removed.

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 modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. An adjustable fixing cap for an electroencephalogram electrode is characterized by comprising a hard head ring (1) and a plurality of arched fixed slideways (2) fixed on the hard head ring, wherein a first fixing band (3) and a second fixing band (4) are radially and symmetrically fixed on the hard head ring (1), nylon buttons matched with each other are arranged at the lower ends of the first fixing band (3) and the second fixing band (4), an inflatable air bag gasket (5) is fixed on the inner side surface of the head ring (1), a plurality of adjustable fixing blocks (6) capable of sliding and positioning on the fixed slideways are arranged on each fixed slideway (2), each adjustable fixing block (6) comprises a sliding ring (7), an extensible air bag (8) and a clamping seat (9), the sliding ring (7) is sleeved on the fixed slideways (2), a locking bolt (10) is connected to the sliding ring (7) in a threaded manner, one end of the extensible air bag (8) is fixedly connected with the sliding ring (7), the other end of the elastic connecting rod is fixedly connected with the clamping seat (9), the clamping seat (9) can clamp or release an electrode plate (11) of an electroencephalogram, and the air bag gasket (5) and the telescopic air bag (8) are respectively and correspondingly communicated with an air charging and discharging pipe (12) with a valve.

2. The adjustable fixing cap for electroencephalogram electrodes according to claim 1, wherein the fixing slide ways (2) comprise three longitudinal slide ways extending in the front-back direction and six transverse slide ways extending in the left-right direction, both ends of each longitudinal slide way are respectively fixedly connected with the head ring (1), only one end of each transverse slide way is fixedly connected with the head ring (1), and the other end of each transverse slide way extends upwards and is close to one longitudinal slide way adjacent to the transverse slide way.

3. The adjustable fixing cap for electroencephalogram electrodes according to claim 2, wherein three longitudinal slideways are arranged in parallel at intervals, two ends of the middle longitudinal slideway are fixedly connected with two points on the head ring (1) which are opposite in the radial direction, and the other two longitudinal slideways are symmetrically distributed on the left side and the right side of the middle longitudinal slideway.

4. The adjustable fixing cap for electroencephalogram electrodes according to claim 3, wherein six transverse slideways are divided into two groups and symmetrically distributed on the left and right sides of the head ring (1), and the transverse slideways in each group are arranged in parallel at intervals.

5. The adjustable electroencephalogram electrode fixing cap according to any one of claims 1 to 4, wherein the clamping seat (9) comprises a square seat body (13), the top surface of the seat body (13) is fixedly connected with the top surface of the telescopic airbag (8), the lower surface of the seat body (13) is provided with an inverted T-shaped clamping groove (14), a clamping sheet (15) and a clamping spring (16) are arranged in the clamping groove (14), the clamping spring (16) is clamped between the clamping sheet (15) and the inner bottom surface of the clamping groove (14), and the side surface of the seat body (13) is provided with an insertion hole (17) for inserting the electrode sheet (11) into the clamping groove (14).

6. The adjustable electroencephalogram electrode fixing cap according to claim 5, wherein handles (18) extending out of the clamping grooves (14) are provided on both sides of the clamping piece (15).