Non-invasive brain-computer interface

Abstract

The utility model discloses a non-invasive brain-computer interface, which belongs to the field of brain interface equipment and comprises a brain-computer main body, a trigger button is arranged outside the brain-computer main body, and the upper end of the brain-computer main body is detachably connected with a signal receiving end used for receiving signals. And one end, far away from the brain-machine main body, of the signal receiving end is fixedly connected with a positioning structure for fixing the signal receiving end. According to the utility model, a wearer hangs the brain machine main body on the ear, then adjusts the soft connecting piece and the positioning soft strip, and pastes the contact patch on the head after adjustment, so that the electrode is located at the temple position, and during normal use, brain electric signals are received through the electrode and then transmitted to the interior of the brain machine main body through the communication wire, so that the brain machine main body can be conveniently used. Signal processing and transmission are carried out through the processing unit, a trigger button is turned on, and normal work is started after connection with computer end software is completed.

Description

Technical Field

[0001] This utility model relates to the field of brain interface devices, specifically a non-invasive brain-computer interface. Background Technology

[0002] Non-invasive brain-computer interface (BCI) technology products primarily collect electrical signals from the brain by placing electrodes on the scalp, thereby analyzing the user's emotional and mental state. Compared to invasive and semi-invasive BCIs, this device does not require penetrating the skull, avoiding surgical and infection risks, and improving user safety and comfort. It can be used to assess a user's emotional state, stress level, concentration, etc., providing a scientific basis for the early detection and intervention of mental health problems. Traditional non-invasive brain-computer interfaces are mostly complex in structure and require multiple data lines for data transmission, making them very inconvenient to use. Therefore, this invention provides a non-invasive brain-computer interface to solve the aforementioned problems. Utility Model Content

[0003] The purpose of this invention is to provide a non-invasive brain-computer interface to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A non-invasive brain-computer interface includes a brain-computer body, a trigger button on the outside of the brain-computer body, a signal receiving end for receiving signals detachably connected to the upper end of the brain-computer body, and a positioning structure for fixing the signal receiving end fixedly connected to the end of the signal receiving end away from the brain-computer body.

[0006] As a further embodiment of this utility model, the brain-computer interface body has a device cavity inside, and a battery pack for powering the entire brain-computer interface body is fixedly connected inside the device cavity. The brain-computer interface body also has a processing unit for processing signals installed inside, and a charging port for charging is soldered on the circuit board where the processing unit is located. The charging port also has a data transmission function.

[0007] As a further embodiment of this utility model, the signal receiving end includes a snap-fit ​​connector, and the end of the brain-computer interface body is provided with a snap-fit ​​groove, and the snap-fit ​​connector is inserted into the snap-fit ​​groove.

[0008] As a further embodiment of this utility model, the card connector has a card interface inside, and a limiting protrusion is fixedly connected to the brain-computer body in the card slot. The limiting protrusion is inserted into the card interface, thereby further increasing the stability between the card connector and the brain-computer body.

[0009] As a further embodiment of this utility model, a flexible connector is fixedly connected to the end of the card connector away from the brain-computer interface body. The flexible connector is a malleable protective tube, and the malleable protective tube is wrapped with a silicone sleeve.

[0010] As a further embodiment of this utility model, a protective shell is fixedly connected to the end of the flexible connector away from the card connector, and an electrode for receiving brain signals is movably connected inside the protective shell, and the electrode is connected to the processing unit through a communication wire.

[0011] As a further embodiment of this utility model, a positioning soft strip is fixedly connected to the end of the protective shell away from the soft connector, and a positioning plate is fixedly connected to the end of the positioning soft strip away from the protective shell. A contact patch for positioning is inserted in the positioning plate, and the contact patch is adhesive and can be pasted onto the user's head.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. When using this utility model, the wearer hangs the brain-computer interface unit on the ear, then adjusts the soft connector and positioning strip. After adjustment, the contact patch is attached to the head so that the electrodes are positioned at the temples. During normal use, the brain electrical signals are received through the electrodes and transmitted to the brain-computer interface unit through the communication wire. The signals are then processed and transmitted through the processing unit, and finally transmitted to the mobile terminal. Therefore, this utility model has extremely high portability.

[0014] 2. When this utility model is used, a charging port for charging is also soldered on the circuit board where the processing unit is located. The charging port also has a data transmission function. By connecting the two brain-computer interfaces, electrodes can be set in both the left and right ears, thereby increasing the stability and accuracy of signal reception.

[0015] 3. When using this utility model, the protective shell is made of rubber material and has an installation window inside. The outer diameter of the electrode is larger than the inner diameter of the protective shell. When the electrode is placed inside the protective shell, the electrode will cause the rubber material protective shell to expand, thereby wrapping the electrode under the elasticity of the rubber material. In this way, when the user switches the brain-computer interface from the left ear to the right ear, they only need to take out the electrode, turn it in the right direction, and put it back into the protective shell, which makes it convenient for the user to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a non-invasive brain-computer interface.

[0017] Figure 2 This is a breakdown diagram of a non-invasive brain-computer interface.

[0018] Figure 3This is a structural diagram of the signal receiver in a non-invasive brain-computer interface.

[0019] In the diagram: 1. Brain-computer interface main body; 2. Signal receiving end; 3. Positioning structure; 4. Trigger button; 100. Device cavity; 101. Battery pack; 102. Processing unit; 103. Charging port; 104. Indicator light; 200. SIM card connector; 201. SIM card slot; 202. Limiting protrusion; 203. Flexible connector; 204. Protective shell; 205. SIM card interface; 206. Installation window; 300. Positioning flexible strip; 301. Positioning plate; 302. Contact patch. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-3 In this embodiment of the present invention, a non-invasive brain-computer interface includes a brain-computer body 1. A trigger button 4 is provided on the outside of the brain-computer body 1. An indicator light 104 is also provided on the outside of the brain-computer body 1. The brain-computer body 1 is generally arc-shaped, and the shape fits the back of the human ear, thereby making the brain-computer body 1 more ergonomic and more comfortable for the wearer. A signal receiving end 2 for receiving signals is detachably connected to the upper end of the brain-computer body 1. The signal receiving end 2 can be used to receive electrical signals from the human brain. A positioning structure 3 for fixing the signal receiving end 2 is fixedly connected to the end of the signal receiving end 2 away from the brain-computer body 1.

[0022] The brain-computer interface unit 1 has a device cavity 100 inside. Specifically, the brain-computer interface unit 1 is a split type, which is composed of two shells that are snapped together. The two shells have the same external structure, that is, the two shells are symmetrical to each other and are connected by screws. The shells are made of plastic and the outer surface of the shells is covered with a medical silicone membrane. The medical silicone membrane can increase the comfort between the brain-computer interface unit 1 and the human body. A battery pack 101 that supplies power to the entire brain-computer interface unit 1 is fixedly connected inside the device cavity 100. A processing unit 102 for processing signals is also installed inside the brain-computer interface unit 1. The battery pack 101 and the circuit board where the processing unit 102 is located are electrically connected. A charging port 103 for charging is also soldered on the circuit board where the processing unit 102 is located. The charging port 103 also has a data transmission function.

[0023] Specifically, the signal receiver 2 includes a snap-fit ​​connector 200, and the end of the brain-computer interface 1 is provided with a snap-fit ​​groove 201. The snap-fit ​​connector 200 is inserted into the snap-fit ​​groove 201. In order to further increase the stability between the signal receiver 2 and the brain-computer interface 1, a snap-fit ​​interface 205 is provided inside the snap-fit ​​connector 200. A limiting protrusion 202 is fixedly connected to the brain-computer interface 1 within the snap-fit ​​groove 201. The limiting protrusion 202 is inserted into the snap-fit ​​interface 205, thereby further increasing the stability between the snap-fit ​​connector 200 and the brain-computer interface 1. More specifically, the limiting protrusion 202 is fixedly connected to the inner wall of the outer shell.

[0024] The end of the card connector 200 away from the brain-computer interface 1 is fixedly connected to a flexible connector 203. The flexible connector 203 is a malleable protective tube, and the outside of the malleable protective tube is wrapped with a silicone sleeve. The silicone sleeve can prevent friction between the flexible connector 203 and the human body, which could cause injury to the human skin.

[0025] A protective shell 204 is fixedly connected to the end of the flexible connector 203 away from the snap-fit ​​connector 200. Electrodes for receiving brain signals are movably connected inside the protective shell 204. The electrodes are made of silver chloride electrode pads. The protective shell 204 is made of rubber and has an installation window 206 inside. Specifically, the outer diameter of the electrode is larger than the inner diameter of the protective shell 204. When the electrode is placed inside the protective shell 204, the rubber material expands due to the difference in outer diameter, thus using elasticity to wrap the electrode. In this way, when the user removes the brain-computer interface 1 from the... When switching from the left ear to the right ear, simply remove the electrode, reverse its orientation, and place it back into the protective shell 204. The electrode is connected to the processing unit 102 via a communication cable. A positioning soft strip 300 is fixedly connected to the end of the protective shell 204 away from the flexible connector 203. The material of the positioning soft strip 300 is the same as that of the flexible connector 203. A positioning plate 301 is fixedly connected to the end of the positioning soft strip 300 away from the protective shell 204. A contact patch 302 for positioning is inserted inside the positioning plate 301. The contact patch 302 is adhesive and can be attached to the user's head.

[0026] The working principle of this utility model is as follows:

[0027] When using this invention, the wearer hangs the brain-computer interface 1 on their ear, then adjusts the soft connector 203 and the positioning soft strip 300. After adjustment, the contact patch 302 is attached to the head so that the electrodes are positioned at the temples. During normal use, the brain electrical signals are received through the electrodes and transmitted to the brain-computer interface 1 through the communication wire. The signals are then processed and transmitted through the processing unit 102. After turning on the trigger button 4 and completing the connection with the computer software, the device begins to work normally. By using a skin-friendly material that comes into contact with the user's skin, the device ensures comfort during long-term wear and is easy to carry.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A non-invasive brain-computer interface, comprising a brain-computer interface body (1), characterized in that, The brain-computer interface (BCI) body (1) is provided with a trigger button (4) on its exterior. The upper end of the BCI body (1) is detachably connected to a signal receiving end (2) for receiving signals. The end of the signal receiving end (2) away from the BCI body (1) is fixedly connected to a positioning structure (3) for fixing the signal receiving end (2).

2. The non-invasive brain-computer interface according to claim 1, characterized in that, The brain-computer interface (BCI) body (1) has a device cavity (100) inside. A battery pack (101) that supplies power to the entire BCI body (1) is fixedly connected inside the device cavity (100). A processing unit (102) for processing signals is also installed inside the BCI body (1). A charging port (103) for charging is soldered on the circuit board where the processing unit (102) is located. The charging port (103) also has a data transmission function.

3. The non-invasive brain-computer interface according to claim 2, characterized in that, The signal receiving end (2) includes a snap-fit ​​connector (200), and the end of the brain-computer body (1) is provided with a snap-fit ​​groove (201), and the snap-fit ​​connector (200) is inserted into the snap-fit ​​groove (201).

4. A non-invasive brain-computer interface according to claim 3, characterized in that, The card connector (200) has a card interface (205) inside. The brain-computer body (1) has a limiting protrusion (202) fixedly connected in the card slot (201). The limiting protrusion (202) is inserted into the card interface (205), thereby further increasing the stability between the card connector (200) and the brain-computer body (1).

5. A non-invasive brain-computer interface according to claim 3, characterized in that, The end of the card connector (200) away from the brain-computer interface body (1) is fixedly connected to a flexible connector (203), which is a malleable protective tube and is wrapped with a silicone sleeve.

6. A non-invasive brain-computer interface according to claim 5, characterized in that, The flexible connector (203) is fixedly connected to a protective shell (204) at one end away from the card connector (200). An electrode for receiving brain signals is movably connected inside the protective shell (204), and the electrode is connected to the processing unit (102) via a communication wire.

7. A non-invasive brain-computer interface according to claim 6, characterized in that, The protective shell (204) is fixedly connected to a positioning soft strip (300) at one end away from the flexible connector (203), and a positioning plate (301) is fixedly connected to the other end of the positioning soft strip (300) away from the protective shell (204). A contact patch (302) for positioning is inserted in the positioning plate (301), and the contact patch (302) is adhesive and can be pasted to the user's head.

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