Electroencephalogram sensor convenient for signal collection

Abstract

An electroencephalogram sensor facilitating signal collection comprises a sensor body and a silver paste circuit printed on the sensor body. The silver paste circuit is composed of a plurality of branch circuits which are independent from one another, a signal collecting belt used for collecting the branch circuits is formed on the sensor body, and a connector used for collecting signals of the branch circuits is installed at the end of the signal collecting belt; a reinforcing plate used for reinforcing the structural strength of the signal collecting belt is arranged at the end of the signal collecting belt, the reinforcing plate is arranged between the signal collecting belt and the connector, and a limiting component used for limiting the installation position of the signal collecting belt is installed on the connector. Compared with the prior art, the reinforcing plate for reinforcing the structural strength of the signal collecting belt is arranged at the end part of the signal collecting belt, so that the end part of the signal collecting belt does not wrinkle under the action of the reinforcing plate, the signal collecting belt can be smoothly connected to the connector, and the signal transmission stability of each branch line is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electroencephalogram sensors, in particular to an electroencephalogram sensor which is convenient for signal collection. Background Art

[0002] Anesthesia is a reversible functional inhibition of the central and / or peripheral nervous systems produced by drugs or other methods. The main characteristic of this inhibition is the loss of sensation, especially pain. Anesthesia is the use of drugs or other methods to temporarily cause the patient to lose sensation as a whole or in part in order to achieve painless surgical treatment.

[0003] General anesthesia is the most widely used method of anesthesia in clinical practice. With the combined use of new strong and short-acting general anesthetics, it has become difficult to judge the depth of general anesthesia. The potential danger of intraoperative awareness always exists. Therefore, convenient and effective monitoring of the anesthesia depth of patients under general anesthesia and corresponding guidance on the use of perioperative general anesthetics have been a hot topic for anesthesia workers in recent years.

[0004] Among them, EEG can better monitor the functional state and changes of the cerebral cortex, and is considered to be the most sensitive and accurate objective indicator for evaluating the state of consciousness at this stage. Since the EEG signal is relatively weak at the uV level, it is easily interfered with, especially in the anesthesia surgery environment. The use of electrosurgical equipment such as high-frequency electric knives, monitoring equipment, heating blankets, etc. will cause interference and affect the EEG signal acquisition. Therefore, the reliability of sensors used to collect EEG in complex anesthesia surgery environments is very critical. Traditional sensors are mostly single-chip or linear designs. During use, the patient's position change or pulling will cause the sensor to fall off, thereby affecting EEG monitoring and causing inaccurate anesthesia monitoring.

[0005] Chinese patent number CN206534639U discloses a disposable EEG sensor for monitoring the depth of anesthesia, comprising three electrode sheets connected in sequence by sensing wires, wherein each electrode sheet comprises PE foam and a solid conductive gel on the PE foam, and an adhesive layer is provided on the PE foam on the same side as the solid conductive gel; the electrode sheet is connected to a connector connected to an anesthesia depth monitoring instrument via the sensing wire.

[0006] The connector of the above-mentioned EEG sensor is connected to the sensor body through an elastic clip. Since the sensor body needs to be attached to the human head, the sensor body is a flexible structure, and the connector is usually made of hard material. When the end of the flexible sensor body needs to be connected to the connector, it is easy to cause wrinkles at the end of the sensor body, thereby affecting the connection stability between the sensor body and the connector. At the same time, the conductive part of the line on the sensor needs to contact the host contact. If there is an adhesive offset, it will cause the line to not be contacted, affecting signal transmission. Utility Model Content

[0007] The utility model aims to overcome the defects in the prior art and provides an electroencephalogram sensor which has stable connection, simple structure and stable collection and is convenient for signal collection.

[0008] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: an EEG sensor that is convenient for signal collection, comprising a sensor body and a silver paste circuit printed on the sensor body; the silver paste circuit is composed of a number of independent branch circuits, and a signal collection belt for collecting the various branch circuits is formed on the sensor body, and a connector for collecting the signals of each branch circuit is installed at the end of the signal collection belt; a reinforcing plate for strengthening the structural strength of the signal collection belt is provided at the end of the signal collection belt, the reinforcing plate is arranged between the signal collection belt and the connector, and a limiting component for limiting the installation position of the signal collection belt is installed on the connector.

[0009] As a preferred solution of the utility model, the end of the reinforcing plate is flush with the end of the signal collecting belt, and the width of the reinforcing plate is consistent with the width of the signal collecting belt.

[0010] As a preferred solution of the utility model, the signal collecting belt and the connector are located on opposite sides of the reinforcing plate, and adhesive layers bonded to the signal collecting belt and the connector are respectively formed on both sides of the reinforcing plate.

[0011] As a preferred solution of the utility model, the limiting component includes a bottom plate and limiting plates formed on opposite sides of the bottom plate, the limiting plates abut against the side of the connector, and the limiting plates abut against the side of the reinforcing plate and the signal collection belt at the same time.

[0012] As a preferred solution of the utility model, a slot for clamping the bottom plate is formed at the bottom of the connector, and the bottom of the connector is adhered and fixed to the bottom plate.

[0013] As a preferred solution of the utility model, a chip seat for mounting an encryption identification chip is formed on the connector, and the reinforcing plate and the end of the signal collection belt are in contact with the chip seat.

[0014] As a preferred solution of the utility model, an encryption identification chip for recording electrical signals is arranged in the chip holder, and a hanging ear for limiting the insertion depth of the encryption identification chip is formed on the limiting plate.

[0015] As a preferred solution of the utility model, the hanging ear forms a transverse limiting section flush with the end of the limiting plate on the side facing the chip seat, and the transverse limiting section is arranged along the width direction of the connector.

[0016] As a preferred solution of the utility model, the hanging ear is formed with an inclined pushing section for facilitating the pushing of the encryption identification chip card.

[0017] As a preferred solution of the utility model, the bottom of the base plate is flush with the bottom of the connector.

[0018] Compared with the prior art, the beneficial effect of the utility model is that a reinforcing plate for strengthening the structural strength of the signal collection belt is provided at the end of the signal collection belt, so that the end of the signal collection belt will not be wrinkled under the action of the reinforcing plate, ensuring that the signal collection belt can be smoothly connected to the connector, thereby ensuring the signal transmission stability of each branch line. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an exploded view of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the sensor body;

[0022] Figure 4 It is a schematic diagram of the structure of the connector;

[0023] Figure 5 A partial enlarged view of the middle A;

[0024] Figure numerals: sensor body 1, signal collecting belt 11, silver paste circuit 2, branch circuit 21, reinforcing plate 3, connector 4, chip seat 41, encryption identification chip 5, limiting component 6, bottom plate 61, limiting plate 62, hanging ear 63, lateral limiting section 64, inclined pushing section 65. DETAILED DESCRIPTION

[0025] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-Figure 5 As shown, an EEG sensor for facilitating signal collection comprises a sensor body 1 and a silver paste circuit 2 printed on the sensor body 1; the silver paste circuit 2 is composed of a plurality of independent branch circuits 21, a signal collecting belt 11 for collecting the branch circuits 21 is formed on the sensor body 1, and a connector 4 for collecting the signals of the branch circuits 21 is installed at the end of the signal collecting belt 11; a reinforcing plate 3 for reinforcing the structural strength of the signal collecting belt 11 is provided at the end of the signal collecting belt 11, the reinforcing plate 3 is arranged between the signal collecting belt 11 and the connector 4, and a limiting member 6 for limiting the installation position of the signal collecting belt 11 is installed on the connector 4.

[0027] The number of branch lines 21 on the sensor body 1 is set according to actual needs. One branch line 21 corresponds to one EEG signal collection position. The branch lines 21 on the sensor body 1 are not interconnected and thus do not interfere with each other. The EEG signals on each branch line 21 are transmitted independently.

[0028] The reinforcing plate 3 is made of a hard material and is used to support the strength of the signal collecting belt 11 to ensure that the signal collecting belt 11 is in a flat state under the action of the reinforcing plate 3, thereby preventing interference between the branch lines 21 on the signal collecting belt 11.

[0029] The end of the reinforcing plate 3 is flush with the end of the signal collecting belt 11 , and the width of the reinforcing plate 3 is consistent with the width of the signal collecting belt 11 , thereby ensuring that the signal collecting belt 11 is flush with the side of the reinforcing plate 3 .

[0030] The signal collecting belt 11 and the connector 4 are located on opposite sides of the reinforcing plate 3. Adhesion layers adhered to the signal collecting belt 11 and the connector 4 are formed on both sides of the reinforcing plate 3 respectively. The adhesion layer can be a double-sided tape arranged on the surface of the reinforcing plate 3, and the reinforcing plate 3 and the silver paste circuit 2 are respectively located on opposite sides of the signal collecting belt 11. When the reinforcing plate 3 adheres to the end of the signal collecting belt 11, the signal transmission and signal acquisition of the silver paste circuit 2 are not affected.

[0031] The limiting member 6 includes a base plate 61 and limiting plates 62 formed on opposite sides of the base plate 61, the limiting plates 62 abut against the side of the connector 4, and the limiting plates 62 abut against the side of the reinforcing plate 3 and the signal collecting belt 11 at the same time, and installation positions for installing the reinforcing plate 3 and the signal collecting belt 11 are formed between the limiting plates 61 on both sides of the base plate 61, and after the reinforcing plate 3 and the signal collecting belt 11 are installed on the connector 4, the reinforcing plate 3 and the signal collecting belt 11 abut against the limiting plates 61 on both sides of the base plate 61 at the same time, thereby ensuring the stable installation of the reinforcing plate 3 and the signal collecting belt 11 on the connector 4.

[0032] A card slot for snapping into the bottom plate 61 is formed at the bottom of the connector 4. The bottom of the connector 4 is adhered and fixed to the bottom plate 61. By snapping the bottom plate 61 onto the bottom of the connector 4, the installation position of the bottom plate 61 is limited, ensuring that the relative position between the limiting member 6 and the connector 4 is not affected when the limiting member 6 is subjected to force.

[0033] A chip seat 41 for installing the encryption identification chip 5 is formed on the connector 4, and the ends of the reinforcing plate 3 and the signal collecting belt 11 are abutted against the chip seat 41. When the reinforcing plate 3 and the signal collecting belt 11 are installed on the connector 4, the two sides of the reinforcing plate 3 and the signal collecting belt 11 are abutted against two oppositely arranged limit plates 62, and the ends are abutted against the chip seat 41, ensuring the stable installation of the reinforcing plate 3 and the signal collecting belt 11 on the connector 4.

[0034] The chip holder 41 is provided with an encryption identification chip 5 for recording electrical signals, and the limiting plate 62 is provided with a hanging ear 63 for limiting the insertion depth of the encryption identification chip 5 .

[0035] The ear 63 forms a transverse limit section 64 flush with the end of the limit plate 62 on the side facing the chip seat 41. The transverse limit section 64 is set along the width direction of the connector 4. When the connector 4 is connected to the signal collector, it is necessary to partially insert the connector 4 into the signal collector. At this time, the encryption identification chip 5 and each branch line 21 are connected to the signal collector. The transverse limit section 64 is used to limit the insertion position of the connector 4. At this time, the transverse limit section 64 is in contact with the outer shell of the signal collector to ensure the plug-in stability between the connector 4 and the signal collector.

[0036] The hanging ear 63 is formed with an inclined pushing section 65 for pushing the encryption identification chip 5 into the card, so that the operator can insert the connector 4 into the signal collector through the inclined pushing section 65 .

[0037] The bottom of the bottom plate 61 is flush with the bottom of the connector 4 to prevent the bottom plate 61 from being interfered by external forces.

[0038] During actual use, the signal collecting belt 11 is first adhered to the reinforcing plate 3 by adhesion to ensure that the signal collecting belt 11 is smoothly adhered to the reinforcing plate 3, and then connected to the connector 4 through the reinforcing plate 3. At this time, the signal collecting belt 11 and the reinforcing plate 3 are simultaneously abutted by the limiting plate 62 and the chip seat 41 to ensure that the signal collecting belt 11 and the reinforcing plate 3 are stably installed on the connector 4.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0040] Although this article uses more of the following terms: sensor body 1, signal collection belt 11, silver paste circuit 2, branch circuit 21, reinforcing plate 3, connector 4, chip seat 41, encryption identification chip 5, limiting member 6, bottom plate 61, limiting plate 62, hanging ear 63, lateral limiting section 64, inclined pushing section 65, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An electroencephalogram (EEG) sensor for facilitating signal collection, comprising a sensor body (1) and a silver paste circuit (2) printed on the sensor body (1); characterized in that: The silver paste circuit (2) is composed of a plurality of mutually independent branch circuits (21); a signal collection belt (11) for collecting the branch circuits (21) is formed on the sensor body (1), and a connector (4) for collecting the signals of the branch circuits (21) is installed at the end of the signal collection belt (11); a reinforcing plate (3) for reinforcing the structural strength of the signal collection belt (11) is provided at the end of the signal collection belt (11); the reinforcing plate (3) is arranged between the signal collection belt (11) and the connector (4), and a limiting component (6) for limiting the installation position of the signal collection belt (11) is installed on the connector (4).

2. The electroencephalogram sensor for facilitating signal collection according to claim 1, characterized in that: The end of the reinforcing plate (3) is flush with the end of the signal collecting belt (11), and the width of the reinforcing plate (3) is consistent with the width of the signal collecting belt (11).

3. The electroencephalogram sensor for facilitating signal collection according to claim 2, characterized in that: The signal collecting belt (11) and the connector (4) are located on opposite sides of the reinforcing plate (3), and adhesive layers that are adhered to the signal collecting belt (11) and the connector (4) are respectively formed on the two sides of the reinforcing plate (3).

4. The electroencephalogram sensor for facilitating signal collection according to claim 1, characterized in that: The limiting component (6) comprises a bottom plate (61) and limiting plates (62) formed on opposite sides of the bottom plate (61); the limiting plates (62) abut against the side edges of the connector (4), and the limiting plates (62) abut against the side edges of the reinforcing plate (3) and the signal collecting belt (11) at the same time.

5. The electroencephalogram sensor for facilitating signal collection according to claim 4, characterized in that: A slot for clamping the bottom plate (61) is formed at the bottom of the connector (4), and the bottom of the connector (4) is bonded and fixed to the bottom plate (61).

6. The electroencephalogram sensor for facilitating signal collection according to claim 5, characterized in that: The connector (4) is provided with a chip seat (41) for mounting an encryption identification chip (5), and the ends of the reinforcing plate (3) and the signal collecting belt (11) are in contact with the chip seat (41).

7. The electroencephalogram sensor for facilitating signal collection according to claim 6, characterized in that: The chip seat (41) is provided with an encryption identification chip (5) for recording electrical signals, and a hanging ear (63) for limiting the insertion depth of the encryption identification chip (5) is formed on the limiting plate (62).

8. The electroencephalogram sensor for facilitating signal collection according to claim 7, characterized in that: The side of the hanging ear (63) facing the chip seat (41) forms a transverse limiting section (64) flush with the end of the limiting plate (62), and the transverse limiting section (64) is arranged along the width direction of the connector (4).

9. The electroencephalogram sensor for facilitating signal collection according to claim 8, characterized in that: The hanging ear (63) is formed with an inclined pushing section (65) for facilitating the pushing of the encryption identification chip (5) card.

10. The electroencephalogram sensor for facilitating signal collection according to claim 4, characterized in that: The bottom of the bottom plate (61) is flush with the bottom of the connector (4).

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