Disposable noninvasive electroencephalogram sensor

Abstract

The utility model discloses a disposable noninvasive electroencephalogram sensor, and belongs to the technical field of electroencephalogram sensors. Comprising a sensor body and an insertion piece connector connected with the sensor body, the insertion piece connector comprises a connecting plate, a chip and an adjusting assembly, a through groove is formed in the end, away from the sensor body, of the connecting plate, the adjusting assembly is arranged in the through groove, the chip is fixedly arranged on the adjusting assembly, and the adjusting assembly is used for adjusting the position of the chip. In the process of inserting the insertion piece connector into the wire interface of the anesthesia depth detection equipment, the adjusting assembly is extruded and drives the chip to move towards the upper opening of the through groove, so that the chip is always subjected to an upward supporting force, and good contact between the chip and the anesthesia depth detection equipment is ensured; the problem that data detected by an electrode slice cannot be read due to poor contact between the electrode slice and an insertion port of anesthesia depth detection equipment in the actual use process of an existing electrode insertion slice with a fixed size is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electroencephalogram sensors, in particular to a disposable non-invasive electroencephalogram sensor. Background Art

[0002] Anesthesia is an essential and key link in modern clinical surgery, but the implementation of anesthesia is highly risky. The wrong anesthesia dose can cause harm to patients. How to provide patients with safe and reliable anesthesia is a key topic in the current field of anesthesia research. EEG signals are a comprehensive reflection of the changes in the synaptic potential of the cerebral cortex nerve cell group, and are currently one of the most promising methods for objectively evaluating the depth of anesthesia. In clinical practice, EEG sensors are usually used in conjunction with anesthesia depth monitoring equipment to collect and transmit patients' EEG signals.

[0003] Currently, disposable non-invasive EEG sensors are equipped with fixed-size electrode plugs, and the sensor body is connected to the anesthesia depth monitoring device through the electrode plugs. Since the electrode plugs are of fixed size, in actual use, there is often a poor contact between the electrode plugs of some EEG sensors and the plug interface of the anesthesia depth detection device, resulting in the inability to read the data detected by the electrode plugs. In addition, the linear non-invasive EEG sensors currently on the market have a fixed distance between the electrode plugs. When the electrode plugs are attached to the scalp of the person being tested, due to the different sizes of each person's head, there will be excessive tension, causing the electrode plugs to detach from the skin surface, resulting in inaccurate measurements. Utility Model Content

[0004] The purpose of the utility model is to provide a disposable non-invasive EEG sensor, aiming to solve at least one of the technical problems existing in the above-mentioned prior art. To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows:

[0005] A disposable non-invasive EEG sensor includes a sensor body and a plug connector connected to the sensor body, the plug connector includes a connecting plate, a chip and an adjustment component, the connecting plate is provided with a through groove at the end away from the sensor body, the adjustment component is arranged in the through groove, the chip is fixed on the adjustment component, and the adjustment component is used to adjust the position of the chip.

[0006] As a further solution of the utility model: the adjustment assembly includes an upper support plate, a lower support plate and an elastic member, the chip is fixedly arranged on the top of the upper support plate, the elastic member is fixedly connected between the upper support plate and the lower support plate, and the upper support plate and the lower support plate are both slidably fitted in the through groove.

[0007] As a further solution of the utility model: the lower supporting plate includes a boss and a flat plate integrally arranged on the top of the boss, the flat plate slides and fits in the through groove, and when not affected by external force, the lower section of the boss is located outside the through groove.

[0008] As a further solution of the utility model: the elastic member is a spring, and at least two of the springs are fixedly connected between the upper supporting plate and the plane plate.

[0009] As a further solution of the utility model: the elastic member is an arc-shaped elastic sheet, the top of the flat plate is provided with a groove for preventing the arc-shaped elastic sheet from sliding, and the top of the arc-shaped elastic sheet is fixedly connected to the upper support plate.

[0010] As a further solution of the utility model: the elastic member is an elastic column, and at least two of the elastic columns are fixedly connected between the upper supporting plate and the plane plate.

[0011] As a further solution of the utility model: a cover is detachably provided on the top of the through slot.

[0012] As a further solution of the utility model: the sensor body includes a flexible circuit board, the flexible circuit board includes a straight line segment and an arc segment, one end of the straight line segment is integrally connected to the middle of the arc segment, the other end of the straight line segment is fixedly connected to the connecting plate, and the arc segment is provided with a middle electrode group and a single electrode sheet telescopically connected to both ends of the middle electrode group.

[0013] The utility model has the following beneficial effects:

[0014] The disposable non-invasive EEG sensor of the utility model is provided with an adjustment component in the through slot of the connecting plate, and a chip is provided on the top of the adjustment component. When the plug connector is inserted into the wire interface of the anesthesia depth detection device, the adjustment component is squeezed, and the adjustment component drives the chip to move toward the upper opening of the through slot, so that the chip is always subjected to an upward supporting force, thereby ensuring that the chip can have good contact with the anesthesia depth detection device, and solving the problem that the existing fixed-size electrode plug has poor contact with the plug interface of the anesthesia depth detection device during actual use, resulting in the inability to read the data detected by the electrode plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a top view schematic diagram of the disposable non-invasive EEG sensor structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the plug connector of the utility model;

[0018] Figure 3 yes Figure 2 Schematic diagram of structural explosion;

[0019] Figure 4 It is a schematic diagram of the structure of an adjustment component in which the elastic member is an arc-shaped elastic sheet;

[0020] Figure 5 It is a schematic diagram of the structure of an adjustment component in which the elastic member is an elastic column.

[0021] In the figure: 1, sensor body; 11, straight line segment; 12, arc segment; 13, middle electrode group; 14, single electrode sheet; 2, plug connector; 21, connecting plate; 211, through slot; 22, chip; 23, adjustment component; 231, upper support plate; 232, lower support plate; 2321, boss; 2322, flat plate; 233, elastic member; 24, cover. DETAILED DESCRIPTION

[0022] 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 of 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.

[0023] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation. Therefore, it should not be understood as a limitation on the present invention.

[0024] In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it 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 an indirect connection 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 utility model can be understood according to specific circumstances.

[0025] See also Figure 1As shown, the utility model provides a disposable non-invasive EEG sensor, including a sensor body 1 and a plug connector 2 connected to the sensor body 1, the plug connector 2 is used to be inserted into the wire interface corresponding to the anesthesia depth detection device, the electrophysiological signals generated by the brain collected by the sensor body 1 are transmitted to the chip 22 of the plug connector 2, the anesthesia depth detection device reads the chip 22, and performs data transmission, therefore, the connection stability between the plug connector 2 and the wire interface of the anesthesia depth detection device is crucial.

[0026] See also Figure 2 , Figure 3 As shown, in this embodiment, the plug connector 2 includes a connecting plate 21, a chip 22 and an adjusting component 23. A through groove 211 is provided at the end of the connecting plate 21 away from the sensor body 1. The adjusting component 23 is arranged in the through groove 211. The chip 22 is fixed on the adjusting component 23. The adjusting component 23 is used to adjust the position of the chip 22.

[0027] When inserting the plug connector 2 into the wire interface of the anesthesia depth detection device, the adjustment component 23 is squeezed, and the adjustment component 23 drives the chip 22 to move toward the opening of the through groove 211, so that the chip 22 is always subjected to an upward supporting force, ensuring that the chip 22 can have good contact with the anesthesia depth detection device.

[0028] It is understandable that a cover 24 is detachably provided on the top of the through slot 211 , and the cover 24 can protect the chip 22 during transportation.

[0029] Specifically, see Figure 3 As shown, in this embodiment, the adjustment component 23 includes an upper support plate 231, a lower support plate 232 and an elastic member 233. The chip 22 is fixedly arranged on the top of the upper support plate 231 by double-sided adhesive. The elastic member 233 is fixedly connected between the upper support plate 231 and the lower support plate 232. The upper support plate 231 and the lower support plate 232 are both slidably fitted in the through groove 211. For further information, please refer to Figure 4 As shown, the lower supporting plate 232 includes a boss 2321 and a flat plate 2322 integrally arranged on the top of the boss 2321 . The flat plate 2322 slides in the through slot 211 . When not affected by external forces, the lower section of the boss 2321 is located outside the through slot 211 .

[0030] During specific implementation, as the connecting plate 21 is inserted into the wire interface of the anesthesia depth detection device, the boss 2321 of the lower support plate 232 is squeezed and rises into the through groove 211, and the boss 2321 drives the flat plate 2322 to rise upward synchronously. While the flat plate 2322 is lifted upward, the upper support plate 231 is driven upward by the elastic member 233, and the upper support plate 231 simultaneously drives the chip 22 to move toward the upper opening of the through groove 211, so that the chip 22 can finally be in good contact with the anesthesia depth detection device. The setting of the elastic member 233 allows the upper support plate 231 to have space to move. When the plug connector 2 is inserted into the wire interface of the anesthesia depth detection device, the elastic member 233 ensures that the chip 22 is always in good contact with the anesthesia depth detection device, so as to solve the problem that the existing fixed-size electrode plug has poor contact with the plug interface of the anesthesia depth detection device during actual use, resulting in the inability to read the data detected by the electrode plug.

[0031] It should be noted that the elastic member 233 can be, but is not limited to, the following methods:

[0032] like Figure 3 As shown, the elastic member 233 is a spring, and at least two springs are fixedly connected between the upper supporting plate 231 and the flat panel 2322 .

[0033] like Figure 4 As shown, the elastic member 233 is an arc-shaped elastic sheet, and a sliding groove for preventing the arc-shaped elastic sheet from sliding is provided on the top of the flat plate 2322 , and the top of the arc-shaped elastic sheet is fixedly connected to the upper supporting plate 231 .

[0034] like Figure 5 As shown, the elastic member 233 is an elastic column, and at least two elastic columns are fixedly connected between the upper supporting plate 231 and the flat panel 2322 .

[0035] It is worth noting that the sensor body 1 in the present application includes a flexible circuit board, which includes a straight segment 11 and an arc segment 12. One end of the straight segment 11 is integrally connected to the middle of the arc segment 12, and the other end of the straight segment 11 is fixedly connected to the connecting plate 21. The arc segment 12 is provided with a middle electrode group 13 and single electrode sheets 14 telescopically connected to the two ends of the middle electrode group 13. The flexible circuit board with this structural setting can simultaneously collect brain electrophysiological signals generated by the brain from both sides of the head, thereby improving the accuracy and efficiency of detection. At the same time, by providing two telescopically connected single electrode sheets 14, it is suitable for heads of different sizes, thereby avoiding the problem of excessive tension causing the electrode sheet to detach from the skin surface and causing inaccurate measurement.

[0036] The specific use is to first clean and degrease the pre-attached electrodes and keep the skin at the adhesion site dry, then stick the disposable EEG sensor to the corresponding part of the patient's head with the correct sticking method, and press the electrode sheet appropriately to collect the electrophysiological signals generated by the brain through the contact between the electrode and the skin. Finally, insert the connecting plate 21 of the plug connector 2 into the wire interface corresponding to the anesthesia depth detection device, read the chip 22 through the anesthesia depth detection device, and transmit data. After use, remove the electrode sheet and clean the skin at the electrode sheet with clean water.

[0037] The above detailed description of the preferred embodiments of the utility model should not be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A disposable non-invasive EEG sensor, comprising a sensor body (1) and a plug connector (2) connected to the sensor body (1), characterized in that: The plug connector (2) comprises a connecting plate (21), a chip (22) and an adjusting component (23); a through slot (211) is provided at an end of the connecting plate (21) away from the sensor body (1); the adjusting component (23) is arranged in the through slot (211); the chip (22) is fixedly arranged on the adjusting component (23); and the adjusting component (23) is used to adjust the position of the chip (22).

2. The disposable non-invasive EEG sensor according to claim 1, characterized in that: The adjustment assembly (23) comprises an upper support plate (231), a lower support plate (232) and an elastic member (233); the chip (22) is fixedly arranged on the top of the upper support plate (231); the elastic member (233) is fixedly connected between the upper support plate (231) and the lower support plate (232); and the upper support plate (231) and the lower support plate (232) are both slidably fitted in the through groove (211).

3. The disposable non-invasive EEG sensor according to claim 2 is characterized in that: The lower supporting plate (232) comprises a boss (2321) and a flat plate (2322) integrally arranged on the top of the boss (2321); the flat plate (2322) is slidably fitted in the through groove (211); and when not affected by external forces, the lower section of the boss (2321) is located outside the through groove (211).

4. The disposable non-invasive EEG sensor according to claim 3 is characterized in that: The elastic member (233) is a spring, and at least two of the springs are fixedly connected between the upper supporting plate (231) and the plane plate (2322).

5. The disposable non-invasive EEG sensor according to claim 3 is characterized in that: The elastic member (233) is an arc-shaped elastic sheet, and a groove for preventing the arc-shaped elastic sheet from sliding is provided on the top of the flat plate (2322), and the top of the arc-shaped elastic sheet is fixedly connected to the upper supporting plate (231).

6. The disposable non-invasive EEG sensor according to claim 3 is characterized in that: The elastic member (233) is an elastic column, and at least two of the elastic columns are fixedly connected between the upper supporting plate (231) and the plane plate (2322).

7. The disposable non-invasive EEG sensor according to claim 1, characterized in that: A cover (24) is detachably provided on the top of the through slot (211).

8. The disposable non-invasive EEG sensor according to any one of claims 1 to 6, characterized in that: The sensor body (1) comprises a flexible circuit board, the flexible circuit board comprising a straight line segment (11) and an arc segment (12), one end of the straight line segment (11) being integrally connected to the middle of the arc segment (12), the other end of the straight line segment (11) being fixedly connected to the connecting plate (21), and the arc segment (12) being provided with a middle electrode group (13) and a single electrode sheet (14) respectively connected to both ends of the middle electrode group (13) in a telescopic manner.

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