Electroencephalogram electrode cap capable of preventing skin from being bruised

Abstract

The utility model discloses an electroencephalogram electrode cap capable of preventing skin from being bruised, and aims to solve the problems that the conventional electrode cap is very easy to fall off when being worn, the skin is bruised after an electroencephalogram is finished, and the electrode cap is very uncomfortable to wear. The electrode cap comprises a cap body, the cap body comprises a hard outer layer and a flexible inner layer, a plurality of threaded holes are formed in the hard outer layer, mounting seats are in threaded connection with the interiors of the threaded holes, movable rods are slidably inserted into the mounting seats, electrode fixing holes are formed in the movable rods, one ends of the movable rods are fixedly connected with first limiting blocks, and the other ends of the movable rods are fixedly connected with second limiting blocks. The outer surface of the movable rod is sleeved with a spring. The position of the movable rod and the position of the electrode fixing hole can be adjusted, then the buffering air bags are inflated, and therefore the outer walls of the front buffering air bag and the rear buffering air bag are attached to the rear side of the head and the forehead of a patient, the head fixing device is suitable for heads of different sizes, it is guaranteed that the head fixing device is worn more properly, and the situations of falling off and bruising are avoided.

Description

Technical Field

[0001] This utility model belongs to the field of electrode cap technology, specifically relating to an electroencephalogram (EEG) electrode cap that prevents skin pressure injuries. Background Technology

[0002] Electroencephalography (EEG) is a test that collects electrical activity of the cerebral cortex by electrodes placed on the scalp at specific locations. It is the sum of local neuronal electrical activity recorded from the extracranial scalp or intracranial region. The EEG recorded by electrodes placed on the scalp is called cortical EEG. It is an important electrophysiological test for central nervous system diseases and is also the most commonly used type of clinical diagnosis.

[0003] Application No. 202221553344.1 discloses a precise positioning type convenient detachable and washable EEG electrode cap. The electrode cap has standardized electrode fixing holes to avoid positional deviations during human installation and reduce system errors. However, the electrode cap is easy to fall off when wearing, which is inconvenient to use. Moreover, the electrode fixing holes cannot be adjusted, which can easily cause skin pressure sores after EEG, making it very uncomfortable to wear. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an EEG electrode cap that prevents skin pressure injury. This electrode cap aims to solve the problems of existing electrode caps that are easy to fall off when worn, are inconvenient to use, and have no adjustable electrode fixing holes, which can easily cause skin pressure injury after EEG and are very uncomfortable to wear.

[0006] (2) Technical solution

[0007] To address the aforementioned technical problems, this utility model provides an EEG electrode cap that prevents skin pressure injuries. The electrode cap includes a cap body, which comprises a rigid outer layer and a flexible inner layer. The rigid outer layer has multiple threaded holes, and a mounting seat is threaded into the internal of each threaded hole. A movable rod is slidably inserted into the mounting seat, and an electrode fixing hole is provided on the movable rod. A first limiting block is fixedly connected to one end of the movable rod, and a spring is sleeved on the outer surface of the movable rod. The other end of the movable rod passes through the mounting seat and is fixedly connected to a second limiting block. Buffer airbags are fixedly connected to the inner walls of both the front and rear sides of the flexible inner layer, and an inflation tube is fixedly connected to the buffer airbag, extending to the outside of the rigid outer layer.

[0008] Preferably, the bottom of both sides of the hat body is fixedly connected with ear loops, and the ear loops are provided with clearance holes.

[0009] Furthermore, the rigid outer layer is made of high-density polyethylene, and the flexible inner layer is made of latex, with a thickness of 2-3 cm.

[0010] Furthermore, the rigid outer layer has multiple vent holes that penetrate the flexible inner layer.

[0011] Furthermore, the flexible inner layer has a groove on the side near the rigid outer layer that corresponds to the mounting base, and the groove corresponds to the position of the electrode fixing hole.

[0012] Furthermore, both the first and second limiting blocks are larger than the diameter of the movable rod, and a rotating cap is fixedly connected to the top of the mounting base, with anti-slip textures on the outer surface of the rotating cap.

[0013] Furthermore, the side of the cushioning airbag furthest from the flexible inner layer is fixedly connected with multiple anti-slip protrusions, which are made of silicone.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In this invention, the electrodes are installed in the electrode fixing holes on the movable rod, and then the cap is fixed to the patient's head. Depending on the size of the patient's head, the rotating cap rotates, causing the mounting base to rotate. Because the mounting base is connected to a rigid outer thread, the position of the movable rod and electrode fixing holes can be adjusted during rotation. The cushioning airbags are then inflated, allowing them to conform to the back and forehead of the patient's head through the outer walls of the front and rear cushioning airbags, accommodating different head sizes and ensuring a more comfortable fit. Simultaneously, the movable rod, via a spring, allows for automatic, slight up-and-down adjustment of the electrodes, preventing excessive pressure on the patient's head and avoiding dislodgement or pressure sores. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below.

[0019] Figure 3 This is a top view of the structure of this utility model.

[0020] Figure 4 This is a front view cross-sectional structural diagram of this utility model.

[0021] Figure 5 This is the utility model Figure 4 A magnified structural diagram of point A in the middle.

[0022] Figure 6 This is a schematic diagram of the structure of the buffer airbag of this utility model.

[0023] The markings in the attached diagram are as follows: 1. Cap body; 2. Rigid outer layer; 3. Flexible inner layer; 4. Threaded hole; 5. Mounting base; 6. Movable rod; 7. Electrode fixing hole; 8. First limiting block; 9. Spring; 10. Second limiting block; 11. Buffer airbag; 12. Inflation tube; 13. Vent hole; 14. Groove; 101. Ear loop; 102. Clearance hole; 501. Rotating cap; 1101. Anti-slip protrusion. Detailed Implementation

[0024] This specific embodiment is an EEG electrode cap to prevent skin pressure injuries, and its structural schematic diagram is shown below. Figures 1-6 As shown, the electrode cap includes a cap body 1, which includes a rigid outer layer 2 and a flexible inner layer 3. The rigid outer layer 2 has multiple threaded holes 4, and a mounting base 5 is threaded into the threaded holes 4. A movable rod 6 is slidably inserted into the mounting base 5. An electrode fixing hole 7 is provided on the movable rod 6. A first limiting block 8 is fixedly connected to one end of the movable rod 6. A spring 9 is sleeved on the outer surface of the movable rod 6. The other end of the movable rod 6 passes through the mounting base 5 and is fixedly connected to a second limiting block 10. Buffer airbags 11 are fixedly connected to the inner walls of both the front and rear sides of the flexible inner layer 3. An inflation tube 12 is fixedly connected to the buffer airbag 11. The inflation tube 12 extends to the outside of the rigid outer layer 2. An air nozzle is provided on the inflation tube 12, through which the buffer airbag 11 can be inflated.

[0025] like Figure 1 and Figure 2 As shown: In this embodiment, ear loops 101 are fixedly connected to the bottom of both sides of the cap body 1. The ear loops 101 are provided with clearance holes 102. The ears are protected by the ear loops 101 and clearance holes 102 to avoid discomfort caused by friction or pressure on the inner wall of the cap body 1.

[0026] The rigid outer layer 2 is made of high-density polyethylene, and the flexible inner layer 3 is made of latex. The thickness of the flexible inner layer 3 is 2-3cm. The flexible inner layer 3 made of latex has good elasticity and fits the patient's head better.

[0027] like Figure 2 and Figure 3 As shown: In this embodiment, the rigid outer layer 2 has multiple ventilation holes 13, which penetrate the flexible inner layer 3 and communicate with the outside air, thereby allowing better air circulation and improved comfort.

[0028] like Figure 4 and Figure 5 As shown: In this embodiment, the flexible inner layer 3 has a groove 14 corresponding to the mounting base 5 on the side close to the rigid outer layer 2, and the groove 14 corresponds to the position of the electrode fixing hole 7.

[0029] By rotating the rotating cap 501, the mounting base 5 is driven to rotate. Since the mounting base 5 is threadedly connected to the hard outer layer 2, the position of the movable rod 6 can be adjusted during the rotation of the mounting base 5, so that the mounting base 5 can move better.

[0030] like Figure 4 and Figure 5 As shown: In this embodiment, the first limiting block 8 and the second limiting block 10 are both larger than the diameter of the movable rod 6. The top of the mounting base 5 is fixedly connected to a rotating cap 501. The outer surface of the rotating cap 501 is provided with anti-slip texture. The anti-slip texture increases the friction between the hand and the rotating cap 501, so as to better rotate the mounting base 5.

[0031] like Figure 2 and Figure 6 As shown: In this embodiment, multiple anti-slip protrusions 1101 are fixedly connected to the side of the cushioning airbag 11 away from the flexible inner layer 3. The anti-slip protrusions 1101 are made of silicone. The anti-slip protrusions 1101 increase the friction between the cushioning airbag 11 and the patient's head, so as to prevent the airbag from falling off after wearing.

[0032] Working principle: When in use, the electrode is installed in the electrode fixing hole 7 on the movable rod 6. Then, the cap 1 is fixed on the patient's head. Then, depending on the size of the patient's head, the rotating cap 501 is rotated to drive the mounting base 5 to rotate. Since the mounting base 5 is threadedly connected to the rigid outer layer 2, the mounting base 5 can adjust the position of the movable rod 6 and the electrode fixing hole 7 during the rotation. Then, the buffer airbag 11 is inflated, so that the outer wall of the front and rear buffer airbags 11 fits the back of the patient's head and forehead, which is suitable for different head sizes and ensures a more comfortable fit. At the same time, the movable rod 6 can drive the electrode to automatically and slightly adjust up and down through the spring 9, thereby avoiding the electrode from putting too much pressure on the patient's head and causing it to fall off or cause pressure injury.

[0033] All technical features in this embodiment can be freely combined according to actual needs.

[0034] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An electroencephalogram (EEG) electrode cap for preventing skin pressure injuries, the electrode cap comprising a cap body (1), characterized in that: The cap body (1) includes a rigid outer layer (2) and a flexible inner layer (3). The rigid outer layer (2) has multiple threaded holes (4). The threaded holes (4) are connected to a mounting base (5) by internal threads. A movable rod (6) is slidably inserted into the mounting base (5). An electrode fixing hole (7) is provided on the movable rod (6). A first limiting block (8) is fixedly connected to one end of the movable rod (6). A spring (9) is sleeved on the outer surface of the movable rod (6). The other end of the movable rod (6) passes through the mounting base (5) and is fixedly connected to a second limiting block (10). Buffer airbags (11) are fixedly connected to the inner walls of the front and rear sides of the flexible inner layer (3). An inflation tube (12) is fixedly connected to the buffer airbag (11). The inflation tube (12) extends to the outside of the rigid outer layer (2).

2. The EEG electrode cap for preventing skin pressure injuries according to claim 1, characterized in that, The bottom of the left and right sides of the cap body (1) is fixedly connected with ear loops (101), and the ear loops (101) are provided with clearance holes (102).

3. The EEG electrode cap for preventing skin pressure injuries according to claim 2, characterized in that, The rigid outer layer (2) is made of high-density polyethylene material, and the flexible inner layer (3) is made of latex material. The thickness of the flexible inner layer (3) is 2-3 cm.

4. The EEG electrode cap for preventing skin pressure injuries according to claim 3, characterized in that, The rigid outer layer (2) has multiple vent holes (13) that penetrate the flexible inner layer (3).

5. The EEG electrode cap for preventing skin pressure injuries according to claim 4, characterized in that, The flexible inner layer (3) has a groove (14) on the side near the rigid outer layer (2) that corresponds to the mounting base (5), and the groove (14) corresponds to the position of the electrode fixing hole (7).

6. The EEG electrode cap for preventing skin pressure injuries according to claim 5, characterized in that, The first limiting block (8) and the second limiting block (10) are both larger than the diameter of the movable rod (6). The top of the mounting base (5) is fixedly connected to a rotating cap (501), and the outer surface of the rotating cap (501) is provided with anti-slip texture.

7. The EEG electrode cap for preventing skin pressure injuries according to claim 6, characterized in that, The buffer airbag (11) has multiple anti-slip protrusions (1101) fixedly connected to the side away from the flexible inner layer (3), and the anti-slip protrusions (1101) are made of silicone.

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