Electroencephalogram examination cap

Abstract

The utility model discloses an electroencephalogram examination cap, which relates to the technical field of electroencephalogram auxiliary equipment, and is characterized in that a collecting electrode, a mounting hole and a conductive column are arranged in a matched manner, and the conductive column penetrates through the mounting hole, so that the collecting electrode is stably limited on one side, close to the scalp, of a fixing sheet, and the collecting electrode can be effectively prevented from being separated; in use, only a wire clamp connected with a wire is needed to clamp the conductive column, disassembly and assembly are more convenient, the wire clamp is clamped in the limiting groove through the arrangement of the limiting groove, the rotating part and the fixing part, the wire clamp is not prone to being separated from the conductive column, and the wire clamp can flexibly rotate and is not prone to being stressed to fall off due to the rotating connection mode between the rotating part and the fixing part. Through the arrangement of the supporting ring and the paste injection hole, after the medical staff adjusts the position of the fixing piece on the head of the patient, conductive paste is injected into the inner side of a circular ring of the supporting ring from the paste injection hole, the inner side of the circular ring of the supporting ring is filled with the conductive paste, and therefore it is guaranteed that the scalp and the collecting electrode are stably connected through the conductive paste.

Description

Technical Field

[0001] The utility model relates to the technical field of electroencephalogram auxiliary equipment, in particular to an electroencephalogram examination cap. Background Art

[0002] Electroencephalogram (EEG) is a graph obtained by amplifying and recording the spontaneous biopotential of the brain from the scalp through precise electronic instruments. It is the spontaneous and rhythmic electrical activity of brain cell groups recorded by electrodes. When pathological changes occur in brain tissue, the graph also changes accordingly, providing a basis for diagnosis. The electrode that collects the spontaneous biopotential of the scalp is called the collection electrode.

[0003] For example, patent application number CN202120225031.2 provides an electrode fixing device for electroencephalogram examination, including a cap body, a plurality of mounting blocks, a plurality of transverse elastic bands and a plurality of vertical elastic bands, both ends of the vertical elastic bands are arranged on the cap body, the mounting blocks are slidably arranged on the vertical elastic bands, the two ends of the transverse elastic bands are respectively arranged on two adjacent mounting blocks, and a clamping mechanism is slidably arranged on the mounting blocks. A first strap and a second strap are respectively provided on both sides of the lower end of the cap body, and a connecting buckle is provided on the first strap, and two connecting grooves are provided on the connecting buckle, and the ends of the second strap pass through the two connecting grooves in sequence; the electrode fixing device for electroencephalogram examination can be quickly and stably fixed on the patient's head, which is convenient for fine-tuning the installation position of the electrode and changing the length of the transverse elastic band. It is suitable for patients with different head shapes and improves the accuracy of collecting electroencephalogram signals from patients.

[0004] Based on the above search, combined with the prior art, it is found that the acquisition electrodes of the EEG examination cap similar to the above disclosed in the prior art are usually set on the inner side of the elastic fixing sleeve, which is easy to be separated from the elastic fixing sleeve by force during use. In addition, after the cap is put on the patient's head, the elastic fixing sleeve is usually opened and the conductive paste is applied between the acquisition electrode and the scalp. The operation of opening and applying easily causes the acquisition electrodes in other parts to shift, which is troublesome to adjust, and it is difficult to ensure that the acquisition electrodes can be accurately adjusted back to the original position to achieve stable contact with the scalp. Therefore, an EEG examination cap is proposed to improve the above problems. Utility Model Content

[0005] The purpose of the present application is to provide an electroencephalogram examination cap to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: an electroencephalogram examination cap, comprising an elastic mesh cap body and a collection electrode, a connecting component installed at the lower end of the elastic mesh cap body, and a plurality of fixing plates fixedly connected to the grid nodes of the elastic mesh cap body in a one-to-one correspondence:

[0007] A conductive column is fixedly connected at the center of one end of the collecting electrode, and a mounting hole for the conductive column to penetrate is provided at the center of the fixing plate;

[0008] The lower end of the fixing plate is coaxially fixedly connected with a support ring. The fixing plate is provided with a paste injection hole, and the paste injection hole is located on the inner side of the circular ring of the support ring.

[0009] Preferably, the height of the support ring is greater than the thickness of the collection electrode.

[0010] Preferably, a rubber ring is fixedly connected to the end surface of the support ring away from the fixing plate.

[0011] Preferably, an observation hole is provided on the fixing plate, and a transparent plate is fixedly connected to the observation hole, and the observation hole and the paste injection hole are located on the same diameter of the fixing plate.

[0012] Preferably, the conductive column comprises a fixed portion and a rotating portion, the fixed portion is fixedly connected to the fixed sheet, and the rotating portion is coaxially rotatably mounted on an end portion of the fixed portion away from the fixed sheet.

[0013] Preferably, a limiting groove is provided at the side end of the rotating part.

[0014] Preferably, an end of the rotating portion away from the fixing portion is provided with a chamfer.

[0015] In summary, the technical effects and advantages of the utility model are:

[0016] 1. In the utility model, the collection electrode, the mounting hole and the conductive column are arranged in coordination, and the conductive column passes through the mounting hole, so that the collection electrode is stably limited on the side of the fixing plate close to the scalp, which can effectively prevent the collection electrode from being separated. When in use, it is only necessary to clamp the conductive column with a wire clamp for connecting the wires, and disassembly and assembly are also more convenient.

[0017] 2. In the utility model, the wire clamp is clamped in the limiting groove by setting the limiting groove, the rotating part and the fixed part, so that the wire clamp is not easy to separate from the conductive column. In addition, the rotating connection between the rotating part and the fixed part enables the wire clamp to rotate flexibly and is not easy to fall off due to force.

[0018] 3. In the utility model, through the provision of the support ring and the paste injection hole, after the medical staff puts the elastic mesh cap on the patient's head, they adjust the position of the fixing plate, and then inject the conductive paste from the paste injection hole into the inner side of the circular ring of the support ring, so that the conductive paste fills the inner side of the circular ring of the support ring, thereby ensuring that the conductive paste stably connects the scalp with the collection electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure in the embodiment when the collection electrodes are removed;

[0021] Figure 2 It is a partial structural schematic diagram of this embodiment;

[0022] Figure 3 for Figure 2 Schematic diagram of the bottom structure in;

[0023] Figure 4 for Figure 3 The schematic diagram of the structure in the state where the collection electrode is removed;

[0024] Figure 5 Schematic diagram of the structure of the collection electrode in this embodiment.

[0025] In the figure: 1. elastic mesh cap body; 2. fixing plate; 21. mounting hole; 22. paste injection hole; 23. support ring; 24. rubber ring; 25. observation hole; 3. connecting component; 4. collecting electrode; 5. conductive column; 501. fixing part; 502. rotating part; 503. limiting groove; 504. chamfer. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example: Reference Figure 1-5 The electroencephalogram examination cap shown includes an elastic mesh cap body 1 and a collection electrode 4, a connecting component 3 installed at the lower end of the elastic mesh cap body 1, and a plurality of fixing plates 2 fixedly connected to the grid nodes of the elastic mesh cap body 1 in a one-to-one correspondence.

[0028] Among them, a conductive column 5 is fixedly connected at the center of one end of the collection electrode 4, and a mounting hole 21 for the conductive column 5 to pass through is provided at the center of the fixing plate 2. The conductive column 5 is passed through the mounting hole 21, so that the collection electrode 4 is stably limited on the side of the fixing plate 2 close to the scalp, which can effectively prevent the collection electrode 4 from being detached. When in use, it is only necessary to clamp the conductive column 5 with a wire clamp for connecting the wires, and disassembly and assembly are also more convenient.

[0029] In order to further improve the clamping stability between the wire clamp and the conductive column 5, the conductive column 5 includes a fixed part 501 and a rotating part 502. The fixed part 501 is fixedly connected to the fixed plate 2, and the rotating part 502 is coaxially rotatably installed on the end of the fixed part 501 away from the fixed plate 2. A limiting groove 503 is provided on the side end of the rotating part 502. The limiting groove 503 is used for clamping the wire clamp, and the wire clamp is not easy to detach from the conductive column 5. The rotating connection method between the rotating part 502 and the fixed part 501 enables the wire clamp to rotate flexibly and is not easy to fall off due to force.

[0030] The end of the rotating portion 502 away from the fixing portion 501 is provided with a chamfer 504 to facilitate the conductive column 5 to smoothly penetrate the mounting hole 21 .

[0031] The lower end of the fixing plate 2 is coaxially fixedly connected with a support ring 23 . The fixing plate 2 is provided with a paste injection hole 22 . The paste injection hole 22 is located inside the circular ring of the support ring 23 . The height of the support ring 23 is greater than the thickness of the collection electrode 4 .

[0032] After the medical staff puts the elastic mesh cap body 1 on the patient's head, they adjust the position of the fixing plate 2, and then inject the conductive paste from the paste injection hole 22 into the inner side of the circular ring of the support ring 23, so that the conductive paste fills the inner side of the circular ring of the support ring 23, thereby ensuring that the conductive paste stably connects the scalp with the collection electrode 4.

[0033] Furthermore, a rubber ring 24 is fixedly connected to the end surface of the support ring 23 away from the fixing plate 2. The rubber ring 24 contacts the scalp more comfortably and is not easy to damage the scalp.

[0034] In order to facilitate the observation of the injection of the conductive paste on the inner side of the circular ring of the support ring 23, an observation hole 25 is provided on the fixed plate 2, and a transparent plate is fixedly connected to the observation hole 25. The observation hole 25 and the paste injection hole 22 are located on the same diameter of the fixed plate 2. Medical staff can check the conductive paste on the inner side of the circular ring of the support ring 23 through the observation hole 25. When the conductive paste covers the observation hole 25, the injection can be stopped. In addition, the observation hole 25 also makes it convenient for medical staff to judge whether the conductive paste is injected into the lower side of multiple fixed plates 2, so as to avoid repeated injection, overflow or missed injection.

[0035] Working principle of the utility model: medical staff inserts the conductive column 5 through the mounting hole 21, so that the collection electrode 4 is stably limited on the side of the fixing plate 2 close to the scalp, then wears the elastic mesh cap body 1 on the patient's head, adjusts the position of the fixing plate 2, and then injects the conductive paste from the paste injection hole 22 into the inner side of the circular ring of the support ring 23, so that the conductive paste fills the inner side of the circular ring of the support ring 23, thereby ensuring that the conductive paste stably connects the scalp and the collection electrode 4, and clamps the wire clamp in the limiting groove 503, so that the wire clamp is not easy to detach from the conductive column 5. In addition, the rotating connection method between the rotating part 502 and the fixed part 501 enables the wire clamp to rotate flexibly and is not easy to fall off due to force.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An electroencephalogram examination cap, comprising an elastic mesh cap body (1) and a collection electrode (4), a connecting component (3) installed at the lower end of the elastic mesh cap body (1) and a plurality of fixing plates (2) fixedly connected to the grid nodes of the elastic mesh cap body (1) in a one-to-one correspondence, characterized in that: A conductive column (5) is fixedly connected at the center of one end of the collecting electrode (4), and a mounting hole (21) for the conductive column (5) to pass through is provided at the center of the fixing plate (2); The lower end of the fixing plate (2) is coaxially fixedly connected to a support ring (23), and the fixing plate (2) is provided with a paste injection hole (22), and the paste injection hole (22) is located on the inner side of the circular ring of the support ring (23).

2. An electroencephalogram examination cap according to claim 1, characterized in that: The height of the support ring (23) is greater than the thickness of the collection electrode (4).

3. An electroencephalogram examination cap according to claim 2, characterized in that: The end surface of the support ring (23) away from the fixing plate (2) is fixedly connected with a rubber ring (24).

4. The electroencephalogram examination cap according to claim 1, characterized in that: The fixing plate (2) is provided with an observation hole (25), and a transparent plate is fixedly connected to the observation hole (25); the observation hole (25) and the paste injection hole (22) are located on the same diameter of the fixing plate (2).

5. The electroencephalogram examination cap according to claim 1, characterized in that: The conductive column (5) comprises a fixed portion (501) and a rotating portion (502), wherein the fixed portion (501) is fixedly connected to the fixed sheet (2), and the rotating portion (502) is coaxially rotatably mounted on an end of the fixed portion (501) away from the fixed sheet (2).

6. The electroencephalogram examination cap according to claim 5, characterized in that: A limiting groove (503) is provided at the side end of the rotating portion (502).

7. An electroencephalogram examination cap according to claim 6, characterized in that: The end of the rotating portion (502) away from the fixing portion (501) is provided with a chamfer (504).

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