Testing device and method for electroencephalograph

Abstract

The invention provides a testing device and method for an electroencephalograph, and the testing device at least comprises a signal generator which is used for transmitting a testing signal; the first end of the connector is in contact with the electrode, and the second end is electrically connected with the signal generator; the connector at least comprises a body and a telescopic connector which is movably arranged on the body and is in contact fit with the electrode. The device is provided with the special connector, the connector can achieve connection between the signal generator and the detected electroencephalograph, and the process of transmitting signals from the signal generator to the detected electroencephalograph can be completed; more importantly, the connector is in elastic contact with the electrode of the electroencephalograph to be tested, when contact is poor, the contact force between the connector and the electrode can be increased through external force, the effect of compressing the electrode is achieved, contact is sufficient, signal transmission stability is good, operation is convenient, repeated plugging and unplugging are not needed, the testing time is greatly saved, and the testing efficiency is improved. And the production efficiency is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a testing device and method for an electroencephalogram (EEG) machine. Background Technology

[0002] During the manufacturing process of an electroencephalogram (EEG) machine, it is generally necessary to test the EEG machine. The existing testing method usually involves using an EEG signal generator to produce a specific waveform, and then using a connecting cable with alligator clips to connect the EEG signal generator to the electrodes of the EEG machine (such as an EEG cap). One end of the alligator clip is connected to the other end of the electrode, thereby inputting the signal generated by the EEG signal generator into the EEG machine. The test purpose is then achieved by comparing the difference between the input signal and the output signal.

[0003] However, this method has the following drawbacks: 1. During the testing process, insufficient or unstable connection between the alligator clip connecting wires and the EEG electrodes can lead to erroneous test results or low efficiency. 2. When insufficient connection occurs, it is necessary to repeatedly check the connection status and usually overcome this problem by repeatedly plugging and unplugging the terminals of the EEG signal generator or the alligator clips connecting the electrodes. This method is cumbersome and time-consuming, which makes the EEG machine test take a long time, which directly leads to low production efficiency of the EEG machine. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a testing device and method for an electroencephalogram (EEG) machine, which can at least solve one of the problems in the prior art.

[0005] To achieve the above and other related objectives, the present invention provides a testing device for an electroencephalogram (EEG) machine, used to test an EEG machine under test, wherein the EEG machine under test includes at least electrodes, and the testing device includes at least: A signal generator is used to generate test signals; The connector has one end in contact with the electrode and the other end electrically connected to the signal generator. The connector includes at least a body and a retractable connector head that is movably disposed on the body and contacts and engages with the electrodes.

[0006] In some embodiments, the connector further includes an elastic element. The body has a limiting groove that cooperates with the retractable connector head. The elastic element is installed in the limiting groove, with its first end abutting against the bottom of the limiting groove and its second end abutting against the end face of the retractable connector head away from the electrode. Thus, the retractable connector head's extension and retraction adjustment is achieved as follows: the elastic element inside the body is elastic; when the elastic element is compressed, its deformation acts on the retractable connector head, thereby increasing the contact force between the retractable connector head and the electrode. This increased force allows for more complete contact between the two.

[0007] In some implementations, the elastic element is a spring.

[0008] In some implementations, the body, retractable connector, and elastic element are all made of conductive metal. Therefore, since the body, retractable connector, and elastic element are all metallic, they can act as conductors of electrical signals, enabling electrical connection between the signal generator and the EEG machine under test, thus facilitating signal transmission.

[0009] In some embodiments, the main body has a limiting opening that engages with the retractable connector and communicates with the limiting groove. The retractable connector has a stepped or arc-shaped limiting structure that engages with the limiting opening. Thus, a simple limiting structure can prevent the retractable connector from detaching from the main body, resulting in low cost and good performance.

[0010] In some implementations, the connector further includes a circuit board, wires, a mounting plate, and fasteners. The end of the connector body furthest from the retractable connector head is soldered to the circuit board. The circuit board is electrically connected to the signal generator via wires. The mounting plate is fitted around the periphery of the connector body and secured to the circuit board with fasteners. This allows the circuit board to facilitate a syringe-type connector, transmitting signals to the needle. An insulating plastic mounting plate is added externally, and screws are used to secure the entire retractable connector. Because the insulating plastic mounting plate is non-conductive, the signal is not affected by anything that comes into contact with it. The connection between the retractable connector and the EEG electrodes is shown in the figure below, with the needle of the retractable connector contacting the EEG electrodes.

[0011] In some implementations, the mounting plate is a non-conductive plate. Therefore, the mounting plate only serves to fix the main body; it is not conductive itself and will not affect the transmission of test signals.

[0012] In some implementations, the connector also includes a housing, with the circuit board, body, mounting plate, and fasteners all housed inside the housing, and the telescopic connector protruding from the housing at one end near the electrode. Thus, the housing provides protection while facilitating overall connector installation and external pressure on the connector.

[0013] To achieve the above and other related objectives, the present invention also provides a testing method for an electroencephalogram (EEG) machine, characterized in that it is performed based on the testing apparatus of the EEG machine according to any one of claims 1-7, and the testing method includes at least the following steps: S1. Connect the signal generator to the electrodes of the EEG machine being tested via the connector; S2. The signal generator emits the signal required for the test; S3. Observe the signals received by the EEG machine being tested; S4. Compare and judge the signal received by the EEG machine with the signal emitted by the signal generator: When the two signals are the same, proceed to step S5; When the two signals are different, proceed to step S6; S5. Record the test results; S6. Adjust the connector: By moving the connector body and the retractable connector head relative to each other, the connection between the connector and the electrodes of the EEG machine under test is made more complete. After adjustment, return to step S2.

[0014] In some implementations, the method further includes the following after step S5: S7. Determine whether the next test signal needs to be tested: If not, end the test; If so, switch to other signals that need to be tested and then proceed to step S2.

[0015] As described above, the sleep monitoring system and method based on multi-sensor fusion of the present invention have the following beneficial effects: 1. This invention provides a novel testing device for an electroencephalogram (EEG) machine. This testing device is equipped with a special connector that enables the connection between a signal generator and the EEG machine under test, completing the process of transmitting signals from the signal generator to the EEG machine. More importantly, the connector and the electrodes of the EEG machine under test have elastic contact. When the contact is poor, external force can be applied to increase the contact force between the two, achieving the effect of pressing the electrodes together, ensuring sufficient contact, good signal transmission stability, convenient operation, and eliminating the need for repeated plugging and unplugging, significantly saving testing time and thus effectively improving production efficiency.

[0016] 2. This invention changes the existing EEG machine testing connection method by using a retractable connector as the signal output end of the signal generator. When the signal generator and the EEG machine have poor contact, the stroke of the retractable connector is reduced, so that the force between the connector and the electrodes of the EEG machine increases due to the change in stroke, making the connection between the two more complete, thereby solving the problems of unstable connection and unstable signal in the prior art.

[0017] 3. During the test, there is no need to repeatedly plug and unplug the signal generator terminals. The test can be conducted by connecting only once during the entire test process, and no reconnection is required until the end of the test, which greatly reduces the test time. Attached Figure Description

[0018] Figure 1 This is a simplified structural schematic diagram of the testing device for the electroencephalogram (EEG) machine of the present invention; Figure 2 This is a simplified cross-sectional structural diagram of the connector of the present invention; Figure 3 for Figure 2 The diagram shows a structural schematic of the connector in another state. Figure 4 This is a logic diagram of the testing method for the electroencephalogram (EEG) machine of the present invention.

[0019] Figure 1-4 Figure labels in the diagram: 100 - Testing device; 200 - Electroencephalogram (EEG) machine under test; 200a - Electrode; 1-Signal generator; 2-Connector; 21-Body; 22-Retractable connector; 23-Elastic element; 24-Circuit board; 25-Wire; 26-Fixing plate; 27-Fastener; 28-Housing; 211-Limiting groove; 212-Limiting opening; 221-Limiting structure. Detailed Implementation

[0020] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0021] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0022] Please see Figures 1-3 This invention provides a testing device for an electroencephalogram (EEG) machine, belonging to the field of medical equipment technology. It can overcome the shortcomings of traditional testing devices, such as unstable connection, complex operation, low testing efficiency, and long testing time.

[0023] like Figure 1-3 As shown, the present invention provides a testing device for an electroencephalogram (EEG) machine according to one embodiment. The testing device 100 is used to test an EEG machine 200 under test, which includes at least electrodes 200a. The testing device 100 includes at least: Signal generator 1 is used to generate test signals; Connector 2 has its first end in contact with electrode 200a and its second end electrically connected to signal generator 1; The connector 2 includes at least a body 21 and a retractable connector head 22 that is movably disposed on the body 21 and contacts and engages with the electrode 200a.

[0024] Preferably, the connector 2 also includes an elastic element 23. The body 21 has a limiting groove 211 that cooperates with the retractable connector 22. The elastic element 23 is installed in the limiting groove 211. The first end of the elastic element 23 abuts against the bottom of the limiting groove 211, and the second end abuts against the end face of the retractable connector 22 away from the electrode 200a. Thus, the retraction adjustment of the retractable connector 22 is achieved as follows: the elastic element 23 inside the body 21 is elastic. When the elastic element 23 is compressed, the deformation of the elastic element 23 will act on the retractable connector 22 in turn, thereby increasing the contact force between the retractable connector 22 and the electrode 200a. The increase in force allows for more complete contact between the two.

[0025] As a further preferred option, the elastic element 23 is a spring.

[0026] Preferably, the body 21, the retractable connector 22, and the elastic element 23 are all made of conductive metal. Therefore, since the body 21, the retractable connector 22, and the elastic element 23 are all metallic, they can serve as conductors of electrical signals, enabling electrical connection between the signal generator 1 and the EEG machine 200 under test, thus achieving signal transmission.

[0027] As a further preferred option, the body 21, the retractable connector 22, and the elastic element 23 can all be made of copper.

[0028] Preferably, the main body 21 has a limiting opening 212 that engages with the retractable connector 22 and communicates with the limiting groove 211. The retractable connector 22 has a stepped or arc-shaped limiting structure 221 that engages with the limiting opening 212. Thus, the retractable connector 22 can be prevented from detaching from the main body 21 with a simple limiting structure 221, which is low-cost and effective.

[0029] Preferably, the connector 2 also includes a circuit board 24, wires 25, a fixing plate 26, and fasteners 27. The end of the body 21 away from the retractable connector 22 is fixedly soldered to the circuit board 24. The circuit board 24 is electrically connected to the signal generator 1 through the wires 25. The fixing plate 26 is fitted around the outer periphery of the body 21 and is fixedly installed on the circuit board 24 by the fasteners 27.

[0030] As a further preferred option, fastener 27 can be a screw.

[0031] Thus, the cooperation of the circuit board 24, the fixing plate 26 and the fastener 27 facilitates the fixed installation and electrical conduction of the syringe-shaped connector 2, thereby conveniently and stably transmitting the test signal to the retractable connector 22.

[0032] Preferably, the fixing plate 26 is a non-conductive plate.

[0033] As a further preferred embodiment, the fixing plate 26 is an insulated plastic fixing plate 26. The fixing plate 26 is fixedly fitted onto the outer periphery of the body 21, and can be fixed to the body 21 by adding screws. Since the fixing plate 26 itself is non-conductive, it only serves to fix the body 21 and will not affect the transmission of test signals.

[0034] Preferably, connector 2 also includes a housing 28, with circuit board 24, body 21, fixing plate 26, and fasteners 27 all installed inside the housing 28. The telescopic connector protrudes from the housing 28 at one end near electrode 200a. Thus, the housing 28 provides protection while facilitating the overall installation of connector 2 and external pressure on connector 2.

[0035] As a further preferred option, the outer casing 28 is preferably made of a non-conductive material such as plastic.

[0036] like Figure 4 As shown, the present invention also provides a testing method for an electroencephalogram (EEG) machine according to an embodiment. This method is based on the aforementioned testing device 100 and includes at least the following steps: S1. Connect the signal generator 1 and the electrodes 200a of the EEG machine 200 under test through connector 2; S2, Signal generator 1 sends the signal required for the test; S3. Observe the signals received by the EEG machine 200 under test; S4. Compare and judge the signal received by the EEG machine 200 with the signal emitted by the signal generator 1: When the two signals are the same, proceed to step S5; When the two signals are different, proceed to step S6; S5. Record the test results; S6. Adjust connector 2: By moving the body 21 and the retractable connector head 22 relative to each other, the connection between connector 2 and the electrode 200a of the EEG machine 200 under test is made more complete. After adjustment, return to step S2.

[0037] Preferably, the step S5 includes the following: S7. Determine whether the next test signal needs to be tested: If not, end the test; If so, switch to other signals that need to be tested and then proceed to step S2.

[0038] As described above, the sleep monitoring system and method based on multi-sensor fusion of the present invention have the following beneficial effects: 1. This invention provides a novel testing device 100 for an electroencephalogram (EEG) machine. The testing device 100 is equipped with a special connector 2, which enables the connection between a signal generator 1 and the EEG machine 200 under test, facilitating the transmission of signals from the signal generator 1 to the EEG machine 200. More importantly, the connector 2 and the electrodes 200a of the EEG machine 200 under test are in elastic contact. When contact is poor, external force can be applied to increase the contact force between the two, achieving the effect of pressing the electrodes 200a firmly, ensuring sufficient contact, good signal transmission stability, and convenient operation. It eliminates the need for repeated plugging and unplugging, significantly saving testing time and effectively improving production efficiency.

[0039] 2. This invention changes the connection method of the existing EEG testing device by using a retractable connector 2 as the connection structure between the signal generator 1 and the EEG machine 200 under test. When the signal generator 1 and the EEG machine 200 under test have poor contact, the force between the connector 2 and the electrode 200a of the EEG machine 200 under test increases due to the change in the stroke by reducing the stroke of the retractable connector 2, so that the connection between the two is more complete, thereby solving the problems of unstable connection and unstable signal in the prior art.

[0040] 3. During the test, there is no need to repeatedly plug and unplug the terminals of signal generator 1. The test can be conducted by connecting only once during the entire test process, and no reconnection is required until the end of the test, which greatly reduces the test time.

[0041] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A testing device for an electroencephalogram (EEG) machine, used for testing an EEG machine (200) under test, the EEG machine (200) under test comprising at least electrodes (200a), characterized in that, The testing apparatus (100) includes at least: A signal generator (1) is used to generate a test signal; The connector (2) has a first end that contacts the electrode (200a) and a second end that is electrically connected to the signal generator (1); The connector (2) includes at least a body (21) and a retractable connector (22) movably disposed on the body (21) and in contact with the electrode (200a).

2. The testing device for an electroencephalogram (EEG) machine according to claim 1, characterized in that, The connector (2) further includes an elastic element (23). The body (21) has a limiting groove (211) that is matched with the retractable connector (22). The elastic element (23) is installed in the limiting groove (211). The first end of the elastic element (23) abuts against the bottom of the limiting groove (211), and the second end abuts against the end face of the retractable connector (22) away from the electrode (200a).

3. The testing device for an electroencephalogram (EEG) machine according to claim 2, characterized in that, The elastic element (23) is a spring.

4. The testing device for an electroencephalogram (EEG) machine according to claim 2, characterized in that, The main body (21), the retractable connector (22), and the elastic element (23) are all made of conductive metal.

5. The testing device for an electroencephalogram (EEG) machine according to claim 2, characterized in that, The main body (21) is provided with a limiting opening (212) that is limited and cooperates with the telescopic connector (22) and communicates with the limiting groove (211). The telescopic connector (22) is provided with a stepped or arc-shaped limiting structure (221) that is limited and cooperates with the limiting opening (212).

6. The testing apparatus for an electroencephalogram (EEG) machine according to any one of claims 1-5, characterized in that, The connector (2) also includes a circuit board (24), wires (25), a fixing plate (26), and fasteners (27). The end of the body (21) away from the retractable connector (22) is fixedly soldered to the circuit board (24). The circuit board (24) is electrically connected to the signal generator (1) through the wires (25). The fixing plate (26) is fitted around the outer periphery of the body (21) and fixedly installed on the circuit board (24) by the fasteners (27).

7. The testing apparatus for an electroencephalogram (EEG) machine according to claim 6, characterized in that, The fixing plate (26) is a non-conductive plate.

8. The testing apparatus for an electroencephalogram (EEG) machine according to claim 6, characterized in that, The connector (2) also includes a housing (28), the circuit board (24), the body (21), the fixing plate (26) and the fastener (27) are all installed inside the housing (28), and one end of the telescopic connector near the electrode (200a) extends out of the housing (28).

9. A testing method using an electroencephalogram (EEG) machine, characterized in that, The testing is performed using the testing apparatus (100) of the electroencephalogram (EEG) machine according to any one of claims 1-8, and the testing method includes at least the following steps: S1. Connect the signal generator (1) and the electrodes (200a) of the EEG machine (200) under test through the connector (2); S2, Signal generator (1) emits the signal required for the test; S3. Observe the signals received by the EEG machine (200) being tested; S4. Compare and judge the signal received by the EEG machine (200) with the signal emitted by the signal generator (1): When the two signals are the same, proceed to step S5; When the two signals are different, proceed to step S6; S5. Record the test results; S6. Adjust connector (2): By moving the body (21) of connector (2) and the retractable connector (22) relative to each other, the connection between connector (2) and the electrode (200a) of the EEG machine (200) under test is made more complete. After adjustment, return to step S2.

10. The testing method of the electroencephalogram (EEG) machine according to claim 9, characterized in that, The process after step S5 also includes: S7. Determine whether the next test signal needs to be tested: If not, end the test; If so, switch to other signals that need to be tested and then proceed to step S2.

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