Surface electromyogram signal acquisition device

Abstract

The surface electromyogram signal collecting device comprises a catheter body and a collecting assembly, the catheter body comprises an extending end and an operating end, the extending end can extend into the pharyngeal cavity of the human body, the operating end is arranged outside the human body, and a connecting end is arranged to be connected with surface electromyogram signal collecting equipment; the collecting assembly comprises collecting electrodes and a comparison module which are integrally formed with the catheter body, the collecting electrodes are arranged between the connecting end and the stretching-in end in pairs and electrically connected with surface electromyogram signal collecting equipment, and the comparison module is arranged between the stretching-in end and the collecting electrodes; the comparison module is set to provide reference voltage when the collecting electrode collects the surface electromyogram signals in the pharyngeal cavity of the human body.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, for example, to a surface electromyography signal acquisition device. Background Art

[0002] The electromyographic signal is the superposition of the action potentials of the motor units in many muscle fibers in time and space. The surface electromyographic signal is the comprehensive effect of the electrical activity of the superficial muscles and nerve trunks on the surface of the skin, which can reflect the activity of the nerves and muscles to a certain extent. Therefore, it shows that the electromyographic signal has important practical value in clinical medicine, ergonomics, rehabilitation medicine and sports science.

[0003] In the related art, surface electromyographic signals in the human pharyngeal cavity are collected by electromyographic collection electrodes. However, since the surface electromyographic signals in the human pharyngeal cavity are very weak and are usually mixed with interference signals, the collection results may be inaccurate. Utility Model Content

[0004] The utility model provides a surface electromyography signal acquisition device, which can make the acquisition effect more accurate.

[0005] An embodiment of the present invention provides a surface electromyography signal acquisition device, comprising:

[0006] The catheter body comprises an insertion end and an operation end, wherein the insertion end can be inserted into the pharyngeal cavity of a human body, and the operation end is arranged outside the human body, and the operation end is arranged to be connected to a surface electromyography signal acquisition device; and

[0007] The collection component includes collection electrodes and a control module which are respectively integrally formed with the catheter body. The collection electrodes are arranged in pairs between the operating end and the insertion end, and are arranged to be electrically connected to the surface electromyography signal collection device. The control module is arranged between the insertion end and the collection electrodes, and is arranged to provide a reference voltage when the collection electrodes collect surface electromyography signals in the human pharyngeal cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of a surface electromyography signal acquisition device provided by one embodiment of the utility model;

[0009] Figure 2 It is a partial schematic diagram of a control module and a catheter body of a surface electromyography signal acquisition device provided by one embodiment of the utility model;

[0010] Figure 3 It is a partial schematic diagram of a collection component and a catheter body of a surface electromyography signal collection device provided by one embodiment of the utility model;

[0011] Figure 4It is a schematic diagram of a control module of a surface electromyography signal acquisition device provided in one embodiment of the utility model.

[0012] In the figure:

[0013] 1. Catheter body; 11. Insertion end; 12. Operation end;

[0014] 2. Collection component; 21. Collection electrode; 22. Control module; 221. Conductive part; 222. First connection part; 2221. First connection end surface; 2222. Second connection end surface; 223. Second connection part;

[0015] 3. Plug. DETAILED DESCRIPTION

[0016] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0017] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0018] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0019] like Figure 1-Figure 4As shown, this embodiment provides a surface electromyography signal acquisition device, which includes a catheter body 1 and an acquisition component 2, the catheter body 1 includes an insertion end 11 and an operating end 12, the insertion end 11 can be inserted into the human pharyngeal cavity, the operating end 12 is arranged outside the human body, and the operating end 12 is configured to connect to the surface electromyography signal acquisition device; the acquisition component 2 includes acquisition electrodes 21 and a control module 22 respectively integrally formed with the catheter body 1, the acquisition electrodes 21 are arranged in pairs between the operating end 12 and the insertion end 11, and are configured to be electrically connected to the surface electromyography signal acquisition device, the control module 22 is arranged between the insertion end 11 and the acquisition electrode 21, and the control module 22 can provide a reference reference voltage when the acquisition electrode 21 collects the surface electromyography signal in the human pharyngeal cavity.

[0020] By setting the catheter body 1, the collection component 2 is delivered to the patient's pharyngeal cavity, and the operating end 12 is set to connect to the surface electromyography signal collection equipment, which is convenient for medical personnel to operate; by setting the control module 22 between the collection electrode 21 and the insertion end 11, and integrally formed with the catheter body 1, when the collection electrode 21 collects the surface electromyography signal in the human pharyngeal cavity, it provides a reference reference voltage, thereby reducing the introduction of external interference signals into the test results and improving the accuracy of the collection results.

[0021] As an optional solution for the surface electromyographic signal acquisition device, the control module 22 is a control electrode, which is the same type of electrode as the acquisition electrode 21 and is respectively located in the pharyngeal cavity environment to ensure the reliability of the parameters. The control electrode and the acquisition electrode 21 include a conductive portion 221 and a connecting portion, the conductive portion 221 is arranged on the connecting portion, and the connecting portion is integrally formed with the catheter body 1. In one embodiment, the integrally formed connection can be injection molding, and the molding is more reliable.

[0022] In one embodiment, the connection portion includes a first connection portion 222 and a second connection portion 223, the conductive portion 221 is disposed between the first connection portion 222 and the second connection portion 223, and the first connection portion 222 and the second connection portion 223 are respectively integrally formed with the catheter body 1. The first connection portion 222 and the second connection portion 223 include a first operating end face 2221 and a second operating end face 2222, the second operating end face 2222 is disposed between the first operating end face 2221 and the conductive portion 221, and the catheter body 1 wraps the first operating end face 2221 and is injection-moldedly connected to the second operating end face 2222. In one embodiment, the first connection portion 222 and the second connection portion 223 are symmetrically disposed on both sides of the conductive portion 221.

[0023] In this embodiment, the cross-sections of the conductive part 221, the first connecting part 222 and the second connecting part 223 are circular and are coaxially arranged with the catheter body 1. On the one hand, the reliability of the connection is ensured, and on the other hand, the conductive part 221 is ensured to contact the inner wall of the pharyngeal cavity more evenly.

[0024] Exemplarily, the diameter of the first connection part 222 and the diameter of the second connection part 223 are smaller than the diameter of the catheter body 1, and the diameter of the conductive part 221 is the same as the diameter of the catheter body 1. So that the catheter body 1 wraps the first operating end face 2221 and is more tightly connected to the second operating end face 2222 by injection molding. In other embodiments, the diameter of the first connection part 222 and the second connection part 223 are the same as the diameter of the catheter body 1, and the diameter of the conductive part 221 is larger than the diameter of the catheter body 1. It is sufficient to ensure that the conductive part 221 can be exposed to the catheter body 1.

[0025] As an optional scheme of a surface electromyographic signal acquisition device, a plurality of scale lines are evenly spaced on the catheter body 1. The catheter body 1 is printed with scale lines every 1 cm from the starting scale 0 cm of the insertion end 11 until the ending scale 40 cm. The length of the catheter body 1 of the electrical stimulation electrode is 111.5 cm, and the diameter of the conductive part 221 and the diameter of the catheter body 111 are 0.32 cm. The starting scale is set at the insertion end 11, and the ending scale, that is, the maximum scale is set at the operating end 12, so that medical personnel can observe the depth of the surface electromyographic signal acquisition device inserted into the human pharyngeal cavity. In actual application, the depth of the surface electromyographic signal acquisition device inserted into the human pharyngeal cavity by medical personnel is different according to the different heights of different people, usually 13 cm to 18 cm. After the medical personnel insert the surface electromyographic signal acquisition device into the human pharyngeal cavity, a pair of acquisition electrodes 21 are located at the patient's pharyngeal constrictor muscle, and the control electrode is located at the esophagus below the patient's pharyngeal constrictor muscle because it cannot collect the surface electromyographic signal in the human pharyngeal cavity.

[0026] It should be noted that, in this embodiment, the diameters of the surface electromyographic signal acquisition device formed by injection molding the control electrode and the pair of acquisition electrodes 21 and the catheter body 1 are equal at each location to facilitate insertion of the medical staff into the human pharyngeal cavity. In other embodiments, the diameter of the conductive portion 221 may not be equal to the diameter of the catheter body 1, but the diameter of the first operating end face 2221 needs to be smaller than the diameters of the conductive portion 221 and the catheter body 1.

[0027] In one embodiment, the connecting portion and the conductive portion 221 are made of stainless steel or conductive silicone. Accordingly, the catheter body 1 is made of silicone, TPU or nylon. The length of the catheter body 1, the diameter of the conductive portion 221 and the diameter of the catheter body 1 are not specifically limited and are determined according to actual conditions.

[0028] In one embodiment, multiple pairs of collection electrodes 21 are provided, and the distance between the reference module 22 and a pair of collection electrodes 21 close to the insertion end 11 is greater than a preset distance. By setting the preset distance, the influence between the reference module 22 and the collection electrodes 21 is reduced. In one embodiment, the preset distance is 10 cm. In other embodiments, the preset distance can be other values, as long as the distance between the collection electrode 21 closest to the insertion end 11 and the reference electrode is greater than the preset distance.

[0029] In this embodiment, the operating end 12 is provided with a plug 3, and the plug 3 is configured to be electrically connected to the surface electromyography signal acquisition device. The catheter body 1 is connected to the surface electromyography signal acquisition device through the plug 3. It should be noted that, in this embodiment, the surface electromyography signal acquisition device, the acquisition electrode 21 and the control electrode are all electrically connected.

[0030] The surface electromyography signal acquisition device provided by the utility model can collect surface electromyography signals in the pharyngeal cavity of the human body by arranging the control module 22 between a pair of acquisition electrodes 21 and the insertion end 11 of the catheter body 1 and forming it as a whole with the catheter body 1, thereby providing a reference voltage when the pair of acquisition electrodes 21 collect surface electromyography signals in the pharyngeal cavity of the human body, thereby reducing the introduction of external interference signals into the test results and improving the accuracy of the collection results. In one embodiment, the utility model can collect surface electromyography signals in the pharyngeal cavity of the human body by arranging a pair of acquisition electrodes 21 between the operating end 12 and the insertion end 11 and forming it as a whole with the catheter body 1; by arranging the control module 22 between a pair of acquisition electrodes 21 and the insertion end 11 of the catheter body 1 and forming it as a whole with the catheter body 1, thereby providing a reference voltage when the pair of acquisition electrodes 21 collect surface electromyography signals in the pharyngeal cavity of the human body, thereby reducing the introduction of external interference signals into the test results and improving the accuracy of the collection results. The surface electromyography signal acquisition device disclosed by the utility model solves the problem of inaccurate collection results of surface electromyography signals in the pharyngeal cavity in the related art.

Claims

1. A surface electromyography signal acquisition device, characterized in that: include: The catheter body (1) comprises an insertion end (11) and an operating end (12), wherein the insertion end (11) can be inserted into the pharyngeal cavity of a human body, and the operating end (12) is arranged outside the human body, and the operating end (12) is arranged to be connected to a surface electromyography signal acquisition device; and The collection component (2) comprises a collection electrode (21) and a control module (22) which are respectively integrally formed with the catheter body (1); the collection electrodes (21) are arranged in pairs between the operating end (12) and the insertion end (11), and are arranged to be electrically connected to the surface electromyography signal collection device; the control module (22) is arranged between the insertion end (11) and the collection electrode (21); and the control module (22) is arranged to provide a reference voltage when the collection electrode (21) collects surface electromyography signals in the human pharyngeal cavity.

2. The surface electromyography signal acquisition device according to claim 1, wherein: The control module (22) is a control electrode. The control electrode and the collection electrode (21) comprise a conductive portion (221) and a connecting portion. The conductive portion (221) is arranged on the connecting portion. The connecting portion is integrally formed with the catheter body (1).

3. The surface electromyography signal acquisition device according to claim 2, wherein: The connecting portion comprises a first connecting portion (222) and a second connecting portion (223); the conductive portion (221) is arranged between the first connecting portion (222) and the second connecting portion (223); the first connecting portion (222) and the second connecting portion (223) are respectively formed integrally with the catheter body (1).

4. The surface electromyography signal acquisition device according to claim 3, wherein: The conductive portion (221), the first connecting portion (222) and the second connecting portion (223) have circular cross-sections and are coaxially arranged with the catheter body (1).

5. The surface electromyography signal acquisition device according to claim 3, wherein: The diameters of the first connecting portion (222) and the second connecting portion (223) are smaller than the diameter of the catheter body (1), and the diameter of the conductive portion (221) is the same as the diameter of the catheter body (1).

6. The surface electromyography signal acquisition device according to claim 3, wherein: The diameter of the first connecting portion (222) and the diameter of the second connecting portion (223) are respectively the same as the diameter of the catheter body (1), and the diameter of the conductive portion (221) is greater than the diameter of the catheter body (1).

7. The surface electromyography signal acquisition device according to claim 2, wherein: The connecting portion and the conductive portion (221) are made of stainless steel or conductive silicone.

8. The surface electromyography signal acquisition device according to any one of claims 1 to 7, wherein: The catheter body (1) is provided with a plurality of scale lines at even intervals.

9. The surface electromyography signal acquisition device according to any one of claims 1 to 7, wherein: A plurality of pairs of the collecting electrodes (21) are provided, and a distance between the comparison module (22) and a pair of the collecting electrodes (21) close to the insertion end (11) is greater than a preset distance.

10. The surface electromyography signal acquisition device according to any one of claims 1 to 7, wherein: The operating end (12) is provided with a plug (3), and the plug (3) is configured to be electrically connected to the surface electromyography signal acquisition device.

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