Coil support gasket used for TMS-EEG

Abstract

The utility model discloses a coil support gasket used by TMS-EEG, relates to the technical field of transcranial magnetic stimulation and electroencephalogram, and aims to solve the problems that in the prior art, contact between a transcranial magnetic coil and an electroencephalogram electrode cap easily generates physical vibration, the vibration easily introduces electrode noise and artifacts, and the stability of electrode signals is directly affected. The thickness of the fixing gasket is 1 mm, the fixing gasket is made of non-conductive high-quality resin, the fixing supporting feet are arranged on the surface of the fixing gasket, the extending handle is arranged on the outer side of the fixing gasket, the fixing gasket is designed to be in a non-closed arc shape, the number of the fixing supporting feet is three, and the number of the extending handle is three. And a marked line is arranged on the extended handle.

Description

Technical Field

[0001] The utility model relates to the technical field of transcranial magnetic stimulation combined with electroencephalogram, in particular to a coil support gasket used for TMS-EEG. Background Art

[0002] Transcranial Magnetic Stimulation (TMS) and Electroencephalography (EEG) are two widely used techniques in neuroscience and clinical research. When they are used together, namely TMS-EEG, they can provide deep insights into brain function and connectivity;

[0003] Combining TMS and EEG can stimulate a specific area of ​​the brain while observing and analyzing changes in electrical activity in that area and other areas associated with it in real time. This combined approach provides a new way to study the functional connectivity, information processing, and response mechanisms of the brain. For example, TMS can be used to stimulate a brain area, and EEG can be used to observe how the stimulation affects the activity of other brain areas, thereby revealing causal relationships and dynamic interactions in brain networks;

[0004] The strong magnetic field generated by TMS may interfere with EEG equipment, causing noise to be mixed into the recorded EEG signals. This noise may mask the true EEG activity, making data analysis difficult. On the one hand, it is necessary to use specially designed EEG amplifiers, electrodes, and shielding materials, as well as optimize equipment layout and grounding strategies; on the other hand, it is necessary to develop efficient algorithms to accurately detect and extract these signals;

[0005] In the joint application of TMS-EEG, the signal interference generated during the actual operation is an issue that cannot be ignored. Although the experimenters will standardize the operation before the experiment and formulate unified operation procedures and specifications to reduce the differences and uncertainties in the actual operation, the physical contact between the coil and the EEG cap during the actual operation will inevitably mix with noise or artifacts; therefore, the market urgently needs to develop a coil bracket gasket used in TMS-EEG to help people solve the existing problem. Utility Model Content

[0006] The purpose of the utility model is to provide a coil support gasket used for TMS-EEG, so as to solve the problem proposed in the above background technology that the contact between the transcranial magnetic coil and the EEG electrode cap is prone to physical vibration, and such vibration is prone to introduce electrode noise and artifacts, directly affecting the stability of the electrode signal.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a coil bracket gasket used for TMS-EEG, including a fixed gasket, the thickness of the fixed gasket is 1mm, the material of the fixed gasket is non-conductive high-quality resin, the surface of the fixed gasket is provided with a fixed support foot, and the outer side of the fixed gasket is provided with an extended handle.

[0008] Through the above technical solution, a fixed gasket is used to reduce direct contact between the TMS coil and the EEG device. The fixed gasket is made of stable non-conductive materials, such as high-quality plastic or resin, which not only have good stability but also can effectively isolate electromagnetic and physical interference. At the same time, the gasket is designed to be thin enough to ensure that it can be easily placed between the TMS coil and the EEG device without introducing new interference factors. In addition, the gasket also has sufficient stability and elasticity to ensure that it can maintain its position and shape during TMS stimulation, thereby continuously and effectively isolating vibrations.

[0009] In a preferred example, the present invention can be further configured as follows: the fixing gasket adopts an unclosed arc design.

[0010] Through the above technical solution, the fixed gasket adopts an unclosed arc design. Compared with the circular gasket, this design significantly reduces the attenuation of the material to magnetic stimulation, thereby ensuring more effective TMS stimulation.

[0011] In a preferred example, the present invention can be further configured as follows: three fixed legs are provided.

[0012] Through the above technical solution, three fixed feet are added to the fixed gasket, which pass through the electrode cap and are firmly fixed on the scalp. They will not move even during long experiments. The introduction of the fixed feet not only improves the stability of the gasket, but also helps to reduce artifacts and noise introduced by movement of the head or coil.

[0013] In a preferred example, the utility model can be further configured as follows: a marking line is provided on the extension handle.

[0014] Through the above technical solution, in order to facilitate the experimenters to adjust the position of the fixed gasket during the experiment, an extended handle is provided on the new gasket. The design of the handle not only makes the position adjustment more convenient, but also the handle position has markings that can be used to guide the position of the coil. This design greatly improves the flexibility and accuracy of the experiment, and also helps to reduce experimental errors caused by repeated positioning.

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

[0016] 1. The utility model uses a fixed gasket to reduce direct contact between the TMS coil and the EEG device. The fixed gasket is made of a stable non-conductive material, such as high-quality plastic or resin, which not only has good stability but also can effectively isolate electromagnetic and physical interference. At the same time, the gasket is designed to be thin enough to ensure that it can be easily placed between the TMS coil and the EEG device without introducing new interference factors. In addition, the gasket also has sufficient stability and elasticity to ensure that it can maintain its position and shape during TMS stimulation, thereby continuously and effectively isolating vibrations;

[0017] 2. The fixed gasket of the utility model adopts an unclosed arc design. Compared with the disc gasket, this design significantly reduces the attenuation of the material to the magnetic stimulation, thereby ensuring more effective TMS stimulation;

[0018] 3. The fixed gasket of the utility model also adds three fixed legs, which pass through the electrode cap and are firmly fixed on the scalp. They will not move even during a long experiment. The introduction of the fixed legs not only improves the stability of the gasket, but also helps to reduce artifacts and noise introduced by the movement of the head or coil.

[0019] 4. The utility model is equipped with an extended handle on the new gasket. The design of this handle not only makes position adjustment more convenient, but also has markings at the handle position, which can be used to guide the position of the coil, thereby improving the flexibility and accuracy of the experiment, and also helping to reduce experimental errors caused by repeated positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an axonometric view of a coil support gasket used in a TMS-EEG of the present invention from a top view;

[0021] Figure 2 This is an axonometric view of a coil support gasket used in a TMS-EEG of the present invention when viewed from above;

[0022] In the figure: 1. Fixing gasket; 2. Fixing feet; 3. Extending handle. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present application, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do 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 therefore should not be understood as a limitation on the present application.

[0025] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] See also Figure 1 and Figure 2 The utility model provides an embodiment: a coil support gasket used for TMS-EEG, including a fixed gasket 1, the thickness of the fixed gasket 1 is 1 mm, the material of the fixed gasket 1 is non-conductive high-quality resin, the surface of the fixed gasket 1 is provided with a fixed support foot 2, and the outer side of the fixed gasket 1 is provided with an extended handle 3.

[0027] See also Figure 1 and Figure 2 , the fixed gasket 1 adopts an unclosed arc design.

[0028] See also Figure 1 and Figure 2 , three fixed legs 2 are provided.

[0029] See also Figure 1 and Figure 2 , a marking line is arranged on the extension handle 3 .

[0030] How to use the gasket:

[0031] 1. Placement of gasket: The fixed gasket 1 is placed between the transcranial magnetic stimulation coil and the EEG cap. Make sure that the fixed gasket 1 is flat and not twisted or folded in any way to ensure that it can effectively reduce the direct contact and physical vibration between the TMS coil and the EEG device.

[0032] 2. Alignment with the target area: The center position of the fixed pad 1 should correspond to the target area of ​​transcranial magnetic stimulation, and needs to be accurately aligned with the pulse core area of ​​the coil beat. This is to ensure that TMS stimulation can accurately act on the predetermined brain area while minimizing interference with the EEG signal;

[0033] 3. Adjust the position and fix it: Gently adjust the position of the fixed gasket 1 so that its three fixed legs 2 can closely contact the scalp. This is to ensure that the gasket can be firmly fixed on the scalp during the experiment and will not be displaced due to the movement of the head or coil. The close contact of the fixed legs 2 also helps to reduce artifacts and noise introduced by head movement.

[0034] 4. Start stimulation: After ensuring that the fixed pad 1, coil and EEG cap are correctly placed and fixed, TMS stimulation can be started. At this time, the coil, fixed pad 1 and electrode cap should be stacked tightly together and close to the scalp. This setting helps to maximize the stimulation effect of TMS while minimizing interference with the EEG signal.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A coil support gasket used in TMS-EEG, comprising a fixing gasket (1), characterized in that: The thickness of the fixing gasket (1) is 1 mm. The material of the fixing gasket (1) is a non-conductive high-quality resin. The surface of the fixing gasket (1) is provided with a fixing foot (2). The outer side of the fixing gasket (1) is provided with an extension handle (3).

2. The coil support gasket used for TMS-EEG according to claim 1, characterized in that: The fixing gasket (1) adopts an unclosed arc design.

3. The coil support gasket used for TMS-EEG according to claim 1, characterized in that: The number of fixed legs (2) is three.

4. The coil support gasket used for TMS-EEG according to claim 1, characterized in that: The extension handle (3) is provided with marking lines.

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