Electromyogram evoked potential instrument

Abstract

This invention discloses an electromyography (EMG) evoked potential device, comprising: a stimulator, a display, a control motherboard, a filter, an EEG amplifier, a host unit, and electrodes; the stimulator and display are electrically connected to the control motherboard, the filter is electrically connected to the control motherboard, the EEG amplifier is electrically connected to the filter, the host unit is electrically connected to the EEG amplifier, and the electrodes include needle electrodes and surface electrodes, which are electrically connected to the control motherboard; this device can facilitate doctors in determining whether neuromuscular function is normal, whether there is damage or disease, providing doctors with objective and accurate diagnostic evidence, helping to identify various neuromuscular disorders, and assessing the degree of nerve damage and recovery.

Description

Technical Field

[0001] This utility model relates to the field of medical testing equipment technology, and in particular to an electromyography evoked potential instrument. Background Technology

[0002] Evoked potentials refer to the detectable bioelectrical responses generated in the nervous system and corresponding parts of the brain when specific stimuli are applied to the nervous system, causing the brain to process the information from the stimulus. These responses have a relatively fixed time interval and specific phase with the stimulus.

[0003] Currently, the signals detected by domestic electromyography (EMG) evoked potential (EMP) instruments are extremely small potential signals. However, these potential signals are easily affected by external interference, and the instruments require a relatively enclosed environment to perform the tests, making them very inconvenient to use. Therefore, designing an EMG evoked potential instrument that is highly resistant to interference, provides accurate results, and is easy to use has become an urgent technical problem to be solved.

[0004] Therefore, it is necessary to provide a novel electromyography evoked potential instrument to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of this invention is to provide an electromyography evoked potential instrument, which can help doctors determine whether neuromuscular function is normal, whether there is damage or disease, provide doctors with objective and accurate diagnostic basis, help identify various neuromuscular disorders, and assess the degree of nerve damage and recovery.

[0006] To achieve the above objectives, this utility model provides an electromyography evoked potential instrument, comprising: a stimulator, a display, a control motherboard, a filter, an EEG amplifier, a host, and electrodes;

[0007] The stimulator and display are electrically connected to the control motherboard; the filter is electrically connected to the control motherboard; the EEG amplifier is electrically connected to the filter; and the host unit is electrically connected to the EEG amplifier.

[0008] The electrode includes a needle electrode and a surface electrode, which are electrically connected to the control motherboard.

[0009] Preferably, the EEG amplifier includes a preamplifier and a signal amplifier, wherein the preamplifier is electrically connected to a filter.

[0010] Preferably, the electromyography evoked potential instrument includes a trolley, and the stimulator is mounted on the trolley via a universal joint arm.

[0011] Preferably, the display is mounted on the top of the trolley, the control motherboard and the filter are both mounted on the platform of the trolley, and a socket for electrical connection with the control motherboard is provided on one side of the platform of the trolley. The needle electrode and the surface electrode of the electrode are both inserted into the socket and electrically connected to the control motherboard.

[0012] Preferably, a support is provided on one side of the trolley, and the EEG amplifier is mounted on the support.

[0013] Preferably, a camera is installed on the top of the trolley, and the camera is electrically connected to the host via a control motherboard.

[0014] Preferably, the trolley is provided with a storage drawer in the middle.

[0015] Preferably, a storage box is also provided in the middle of the trolley.

[0016] Preferably, a printer is also placed at the bottom of the trolley, and the printer is electrically connected to the host computer.

[0017] Compared with existing technologies, the beneficial effects are: 1) By analyzing the characteristics of the waveforms displayed on the monitor, such as the amplitude, frequency, and latency of the potential, doctors can determine whether neuromuscular function is normal and whether there is damage or disease.

[0018] 2) Most of the examination methods are non-invasive. Surface electrode examination only requires the electrode to be attached to the skin surface. Even needle electromyography requires the insertion of a fine needle electrode into the muscle. The discomfort is usually tolerable and the examination process is safe. It can accurately record the electrophysiological activity of muscles and nerves, providing doctors with objective and accurate diagnostic information. It helps to identify a variety of neuromuscular disorders and assess the degree of nerve damage and recovery.

[0019] 3) It can also be used to diagnose a variety of neurological and muscular diseases, such as poliomyelitis, multiple sclerosis, amyotrophic lateral sclerosis, muscular dystrophy, myositis, etc. It can also be used to assess nerve damage caused by trauma, cervical spondylosis, lumbar spondylosis, etc., and to track the progression of the disease and the treatment effect.

[0020] 4) It can record the electrical activity of multiple muscle groups simultaneously, increasing the accuracy and comprehensiveness of the test, and making it easier for doctors to analyze the functional state of neuromuscular diseases from multiple perspectives; it displays muscle electrical activity in intuitive waveform or curve graphs and has data storage function, making it easy for doctors to review and compare the test results at different time points at any time, providing strong support for disease diagnosis, treatment plan adjustment and prognosis assessment.

[0021] Other features and advantages of this invention will be set forth in the following description, and in part will be apparent from the description, or may be learned by practice of the invention. The features and advantages of this invention may be realized and obtained by means of the elements and combinations specifically pointed out in the appended claims. These and other features of this invention will become more apparent from the following description and the appended claims, or may be learned by practice of the embodiments described herein. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A three-dimensional view of the electromyography evoked potential instrument provided by this utility model.

[0024] Figure 2 This is a three-dimensional view of the electromyography evoked potential instrument provided by this utility model from another perspective.

[0025] Figure 3 for Figure 2 An enlarged view of region A shown.

[0026] Figure 4 for Figure 1 The diagram shown illustrates the principle of electromyography evoked potentials.

[0027] Attached reference numerals: 1. Stimulator; 2. Display; 3. Control board; 4. Filter; 5. EEG amplifier; 6. Main unit; 7. Electrode; 8. Trolley; 81. Tabletop; 82. Socket; 83. Stand; 84. Camera; 85. Storage drawer; 86. Storage box; 87. Printer. Detailed Implementation

[0028] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are merely for explaining the present utility model and are not intended to limit the present utility model.

[0029] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0031] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. Additionally, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0032] Please see Figures 1 to 4 This utility model provides an electromyography evoked potential instrument, including: a stimulator 1, a display 2, a control motherboard 3, a filter 4, an EEG amplifier 5, a host 6, and electrodes 7.

[0033] The stimulator 1 and display 2 are electrically connected to the control motherboard 3; the filter 4 is electrically connected to the control motherboard 3; the EEG amplifier 5 is electrically connected to the filter 4; and the host unit 6 is electrically connected to the EEG amplifier 5.

[0034] The electrode 7 includes a needle electrode 71 and a surface electrode 72, which are electrically connected to the control motherboard 3. The needle electrode 71 is inserted into the muscle to more accurately acquire the electrical signal of a single motor unit, while the surface electrode 72 is attached to the skin surface to acquire the comprehensive electrical signal of a larger area of ​​muscle.

[0035] The stimulator 1 is used to apply electrical, acoustic, or optical stimulation to nerves or muscles to induce neuromuscular electrical activity. The display 2 shows the changes in muscle electrical signals in the form of waveforms or graphs, facilitating the observation and analysis of the neuromuscular functional state on the display 2.

[0036] The filter 4 is used to filter out unwanted signals (such as power frequency interference, high-frequency noise, etc.) to make the electrical signal clearer. The EEG amplifier 5 is used to amplify the filtered electrical signal to a level that is recordable and analyzable.

[0037] The host 6 analyzes and processes the recorded electrical signals to obtain parameters such as latency, amplitude, and frequency of the potential waveform, helping doctors make accurate diagnoses.

[0038] It should be noted that in this embodiment, the host 6 is a microcomputer host, which has the characteristics of small size, high performance and low power consumption; the stimulator 1 is a flash stimulator.

[0039] In a preferred embodiment, the EEG amplifier 5 includes a preamplifier 51 and a signal amplifier 52. The preamplifier 51 is electrically connected to the filter 4, and the signal amplifier 52 is electrically connected to the preamplifier 51 and the host 6. The preamplifier 51 is used to initially amplify the electromyographic signal to improve signal quality and reduce interference. The signal amplifier 52 further amplifies the electrical signal to achieve a recordable and analyzable intensity.

[0040] In a preferred embodiment, the electromyography evoked potential instrument includes a trolley 8, and the stimulator 1 is mounted on the trolley 8 via a universal joint arm 80, so that the angle, direction and position of the stimulator 1 can be flexibly changed via the universal joint arm 80 to meet the usage needs of different groups of people.

[0041] In a preferred embodiment, the display 2 is mounted on the top of the trolley 8, the control motherboard 3 and the filter 4 are both mounted on the platform 81 of the trolley 8, and a socket 82 electrically connected to the control motherboard 3 is provided on one side of the platform 81 of the trolley 8. The needle electrode 71 and the surface electrode 72 of the electrode 7 are inserted into the socket 82 and electrically connected to the control motherboard 3, which facilitates the installation of each component.

[0042] In a preferred embodiment, a bracket 83 is also provided on one side of the trolley 8, and the EEG amplifier 5 is mounted on the bracket 83. The bracket 83 facilitates the installation of the EEG amplifier 5.

[0043] In a preferred embodiment, a camera 84 is provided on the top of the trolley 8. The camera 84 is electrically connected to the host 6 through the control motherboard 3, and the diagnostic situation can be captured in real time through the camera 84.

[0044] In a preferred embodiment, the trolley 8 is provided with a storage drawer 85 in the middle, which can facilitate the storage of items.

[0045] In a preferred embodiment, a storage box 86 is also provided in the middle of the trolley 8. The storage box 86 is arranged adjacent to the storage drawer 85, which can also facilitate the storage of items.

[0046] In a preferred embodiment, a printer 87 is also placed at the bottom of the trolley 8. The printer 87 is electrically connected to the host 6 and can print out the diagnostic results and parameters such as latency, amplitude, and frequency of the potential waveform by issuing a printing command through the host 6.

[0047] Working principle:

[0048] The needle electrode 71, when inserted into the muscle, can acquire the electrical activity of a single motor unit, while the surface electrode 72, attached to the skin surface, acquires comprehensive electrical signals from a larger area of ​​muscle.

[0049] The stimulator 1 applies electrical, acoustic, or optical stimulation to nerves or muscles to induce neuromuscular electrical activity. When a muscle is stimulated by a nerve impulse, it generates an action potential signal. This signal can be acquired by a surface electrode 72 attached to the skin surface or a needle electrode 71 inserted into the muscle.

[0050] The filter 4 is used to filter out unwanted signals (such as power frequency interference, high-frequency noise, etc.), making the electrical signal clearer and facilitating subsequent analysis. The preamplifier 51 is used to initially amplify the muscle electromyography (EMG) signal to improve signal quality and reduce interference. The signal amplifier 52 further amplifies the electrical signal to a recordable and analyzable intensity. The host computer 6 analyzes and processes the recorded electrical signal to obtain parameters such as the latency, amplitude, and frequency of the potential waveform. The display 2 shows the changes in the EMG signal in the form of waveform graphs or curves. By analyzing the characteristics of these waveforms, such as the amplitude, frequency, and latency of the potential, doctors can determine whether neuromuscular function is normal and whether there is damage or disease. In addition, by applying different types and intensities of stimulation to the nerve or muscle through the stimulator 1 and observing changes in evoked potentials, nerve conduction velocity and neuromuscular junction function can also be assessed.

[0051] Most of the above-mentioned examination methods are non-invasive. For surface electrode 72 examination, the electrode 7 is simply attached to the skin surface. Even for needle electromyography, which requires inserting a fine needle electrode 71 into the muscle, the discomfort is usually tolerable. The examination process is safe and can accurately record the electrophysiological activity of muscles and nerves, providing doctors with objective and accurate diagnostic evidence. This helps to identify various neuromuscular disorders and assess the degree of nerve damage and recovery.

[0052] It can also be used to diagnose a variety of neurological and muscular diseases, such as poliomyelitis, multiple sclerosis, amyotrophic lateral sclerosis, muscular dystrophy, and myositis. It can also be used to assess nerve damage caused by trauma, cervical spondylosis, lumbar spondylosis, etc., and to track disease progression and treatment effects.

[0053] It can simultaneously record the electrical activity of multiple muscle groups, increasing the accuracy and comprehensiveness of the test and facilitating doctors to analyze the functional state of neuromuscular systems from multiple perspectives. It displays muscle electrical activity as intuitive waveforms or curves and has data storage capabilities, making it easy for doctors to review and compare test results at different time points at any time, providing strong support for disease diagnosis, treatment plan adjustment, and prognosis assessment.

[0054] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

Claims

1. An electromyography evoked potential instrument, characterized in that, include: Stimulator (1), display (2), control board (3), filter (4), EEG amplifier (5), host (6) and electrodes (7); The stimulator (1) and display (2) are electrically connected to the control motherboard (3), the filter (4) is electrically connected to the control motherboard (3), the EEG amplifier (5) is electrically connected to the filter (4), and the host (6) is electrically connected to the EEG amplifier (5). The electrode (7) includes a needle electrode (71) and a surface electrode (72), which are electrically connected to the control motherboard (3).

2. The electromyography evoked potential instrument as described in claim 1, characterized in that, The EEG amplifier (5) includes a preamplifier (51) and a signal amplifier (52), and the preamplifier (51) is electrically connected to the filter (4).

3. The electromyography evoked potential instrument as described in claim 1, characterized in that, The electromyography evoked potential instrument includes a trolley (8), and the stimulator (1) is mounted on the trolley (8) via a universal joint arm (80).

4. The electromyography evoked potential instrument as described in claim 3, characterized in that, The display (2) is installed on the top of the trolley (8). The control motherboard (3) and the filter (4) are both installed on the platform (81) of the trolley (8). A socket (82) electrically connected to the control motherboard (3) is also provided on one side of the platform (81) of the trolley (8). The needle electrode (71) and the surface electrode (72) of the electrode (7) are both inserted into the socket (82) and electrically connected to the control motherboard (3).

5. The electromyography evoked potential instrument as described in claim 3, characterized in that, A bracket (83) is also provided on one side of the trolley (8), and the EEG amplifier (5) is mounted on the bracket (83).

6. The electromyography evoked potential instrument as described in claim 3, characterized in that, A camera (84) is installed on the top of the trolley (8), and the camera (84) is electrically connected to the host (6) through the control motherboard (3).

7. The electromyography evoked potential instrument as described in claim 3, characterized in that, The trolley (8) is provided with a storage drawer (85) in the middle.

8. The electromyography evoked potential instrument as described in claim 3, characterized in that, A storage box (86) is also provided in the middle of the trolley (8).

9. The electromyography evoked potential instrument as described in claim 3, characterized in that, A printer (87) is also placed at the bottom of the trolley (8), and the printer (87) is electrically connected to the host (6).

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