Device for measuring nerve conduction velocity of animal or human body

Abstract

The utility model relates to the technical field of nerve conduction, in particular to a device for measuring the nerve conduction speed of an animal or a human body, which comprises a graduated scale, a protective electrode in sliding connection with the surface of the graduated scale, a rotating rod in rotating connection with the surface of the graduated scale, a mounting plate and an auxiliary plate sleeved on the surface of the rotating rod, and a jacking ball arranged on the surface of the mounting plate. The jacking ball makes contact with the surface of the positioning plate, and the positioning plate is arranged on the surface of the graduated scale. The beneficial effects are that when two groups of protection electrodes reach measured positions, a rotating rod is rotated to separate a jacking ball from a limiting groove, at the moment, an auxiliary plate and a mounting plate are jacked by a spring to move towards a graduated scale, at the moment, a limiting plate is located in a limiting clamping groove, and the protection electrodes are limited; the protection electrodes are prevented from displacing under the action of external force, so that reading errors between the two groups of protection electrodes are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of nerve conduction, in particular to a device for measuring nerve conduction velocity of animals or human bodies. Background Art

[0002] Nerve conduction, that is, the conduction process of nerve impulses, is an electrochemical process, which is the electrochemical changes that occur sequentially on nerve fibers. When nerves are stimulated, the permeability of the cell membrane changes dramatically. Experiments using isotope-labeled ions have shown that when nerve fibers are stimulated (such as electrical stimulation), the influx of Na+ increases 20 times compared to when they are not stimulated, and the outflow of K+ also increases 9 times. Therefore, nerve impulses occur with a large influx of Na+ and a large outflow of K+.

[0003] In the prior art, CN210228140U is a device for measuring the nerve conduction velocity of animals in vivo. This patent can meet the measurement of the nerve conduction velocity of animals or humans; and this patent points out that two sets of parallel distributed protective electrodes are sleeved on an axis engraved with scales. In actual application, the nerves are directly hooked with the metal on the two sets of protective electrodes to stimulate the nerves. One set of protective electrodes includes a positive electrode and a negative electrode. One end of the recording electrode is directly inserted into the muscle. The time difference of the relevant signal transmitted to the muscle after stimulation by each set of protective electrodes, that is, the time difference of the signal transmitted to the recording electrode, can be recorded. That is, the recording electrode can be directly inserted into the muscle, and then the distance between the protective electrodes can be read from the axis.

[0004] However, after the distance between the two sets of protective electrodes is determined, it cannot be ensured that workers and other objects will not collide with the two sets of electrodes, thereby causing changes in the distance between the two sets of protective electrodes, resulting in erroneous readings and affecting the measurement accuracy of nerve conduction velocity in animals or humans. Utility Model Content

[0005] The purpose of the utility model is to provide a device for measuring nerve conduction velocity of animals or humans, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a device for measuring the nerve conduction velocity of an animal or a human body, the device for measuring the nerve conduction velocity of an animal or a human body comprising:

[0007] A scale, wherein a protective electrode is slidably connected to the surface of the scale, a rotating rod is rotatably connected to the surface of the scale, a mounting plate and an auxiliary plate are sleeved on the surface of the rotating rod, and a top holding ball is arranged on the surface of the mounting plate, the top holding ball contacts the surface of the positioning plate, and the positioning plate is arranged on the surface of the scale;

[0008] The limiting plate is arranged on the surface of the auxiliary plate, the limiting plate is located in the limiting slot, and the limiting slot is opened on the surface of the protective electrode.

[0009] Preferably, the protective electrodes are provided with two groups, and the limiting slots are provided with multiple groups, the multiple groups of limiting slots are distributed with equal distances and sizes, and the limiting slots are in a square plate-shaped slot structure.

[0010] Preferably, the rotating rod is a "T"-shaped column structure, the rotating rod passes through the positioning plate, the positioning plate is a square plate structure, and the mounting plate is a square plate structure, and the top holding ball is a hemispherical structure.

[0011] Preferably, two groups of top holding balls are provided, the two groups of top holding balls are symmetrically distributed about the center of the mounting plate, and the top holding balls are located in limiting grooves, the limiting grooves are opened on the surface of the positioning plate, and the limiting grooves are spherical grooves.

[0012] Preferably, the auxiliary plate is a square plate-shaped structure, the auxiliary plate is located between the rotating rod and the mounting plate, the limiting plate is a square plate-shaped structure, and multiple groups of limiting plates are arranged, and the multiple groups of limiting plates are distributed at equal distances and sizes.

[0013] Preferably, a spring is arranged between the rotating rod and the auxiliary plate, the spring sleeve is arranged on the outside of the rotating rod, and a guiding arc surface is arranged on the side where the top holding ball contacts the positioning plate, and two groups of rotating rods are arranged, and the two groups of rotating rods are symmetrically distributed about the center of the scale.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model provides a device for measuring the nerve conduction velocity of an animal or human body. When two groups of protective electrodes reach the measured position, the rotating rod is rotated to make the top holding ball disengage from the limiting groove. At this time, the auxiliary plate and the mounting plate move toward the scale under the support of the spring. At this time, the limiting plate is located in the limiting slot, completing the limiting of the protective electrode, preventing the protective electrode from being displaced under the action of external force, resulting in an erroneous reading between the two groups of protective electrodes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a rear view schematic diagram of the structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the protective electrode structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the local structure of the auxiliary plate of the utility model;

[0020] Figure 5It is a schematic diagram of the local structure of the scale of the utility model;

[0021] Figure 6 for Figure 5 Enlarged schematic diagram at point A in the middle.

[0022] In the figure: scale 1, protective electrode 2, positioning plate 3, rotating rod 4, mounting plate 5, top holding ball 6, limiting groove 7, auxiliary plate 8, limiting plate 9, limiting slot 10. DETAILED DESCRIPTION

[0023] 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 in 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.

[0024] Embodiment 1

[0025] See also Figure 1-Figure 6 The utility model provides a technical solution: a device for measuring the nerve conduction velocity of an animal or a human body, the device for measuring the nerve conduction velocity of an animal or a human body comprises: a scale 1, a protective electrode 2 is slidably connected to the surface of the scale 1, a rotating rod 4 is rotatably connected to the surface of the scale 1, a mounting plate 5 and an auxiliary plate 8 are sleeved on the surface of the rotating rod 4, and a top holding ball 6 is arranged on the surface of the mounting plate 5, the top holding ball 6 is in contact with the surface of the positioning plate 3, and the positioning plate 3 is arranged on the surface of the scale 1; a limiting plate 9 is arranged on the surface of the auxiliary plate 8, the limiting plate 9 is located in the limiting card slot 10, and the limiting card slot 10 is opened on the surface of the protective electrode 2 Surface; rotating the rotating rod 4 drives the top holding ball 6 on its surface to rotate until the top holding ball 6 rotates into the limit groove 7. At this time, the limit plate 9 is disengaged from the limit card slot 10, which is convenient for the overall measurement of the device. When the two groups of protective electrodes 2 reach the measured position, the rotating rod 4 is rotated to make the top holding ball 6 disengaged from the limit groove 7. At this time, the auxiliary plate 8 and the mounting plate 5 move toward the direction close to the scale 1 under the support of the spring. At this time, the limit plate 9 is located in the limit card slot 10, completing the limitation of the protective electrode 2 and preventing the protective electrode 2 from being displaced under the action of external force, resulting in erroneous readings between the two groups of protective electrodes 2.

[0026] Embodiment 2

[0027] On the basis of Example 1, the protective electrode 2 is provided with two groups, and the limiting card slots 10 are provided with multiple groups, and the multiple groups of limiting card slots 10 are distributed at equal distances and sizes. The limiting card slots 10 are in a square plate-shaped slot structure, and the rotating rod 4 is in a "T"-shaped column structure. The rotating rod 4 passes through the positioning plate 3, the positioning plate 3 is in a square plate-shaped structure, and the mounting plate 5 is in a square plate-shaped structure. The top holding ball 6 is in a hemispherical structure, and the top holding ball 6 is provided with two groups. The two groups of top holding balls 6 are symmetrically distributed about the center of the mounting plate 5, and the top holding ball 6 is located in the limiting slot 7. The limiting slot 7 is provided on the surface of the positioning plate 3, and the limiting slot 7 is a spherical slot. The auxiliary plate 8 is in a square plate-shaped structure. The auxiliary plate 8 is located between the rotating rod 4 and the mounting plate 5. The limiting plate 9 is in a square plate-shaped structure. The limiting plate 9 is provided with multiple groups, and the multiple groups of limiting plates 9 are distributed at equal distances and sizes. The rotating rod 4 and the auxiliary plate 8 is provided with a spring, the spring sleeve is arranged on the outer side of the rotating rod 4, and a guiding arc surface is provided on the side where the top holding ball 6 contacts the positioning plate 3. Two groups of rotating rods 4 are provided, and the two groups of rotating rods 4 are symmetrically distributed about the center of the scale 1. Rotating the rotating rod 4 drives the top holding ball 6 on its surface to rotate until the top holding ball 6 rotates into the limiting groove 7. At this time, the limiting plate 9 is disengaged from the limiting card groove 10, which is convenient for the overall measurement of the device. When the two groups of protective electrodes 2 reach the measured position, the rotating rod 4 is rotated to make the top holding ball 6 disengaged from the limiting groove 7. At this time, the auxiliary plate 8 and the mounting plate 5 move toward the scale 1 under the support of the spring. At this time, the limiting plate 9 is located in the limiting card groove 10, completing the limiting of the protective electrode 2, preventing the protective electrode 2 from being displaced under the action of external force, resulting in reading errors between the two groups of protective electrodes 2.

[0028] During actual use, rotating the rotating rod 4 drives the top holding ball 6 on its surface to rotate until the top holding ball 6 rotates into the limit groove 7. At this time, the limit plate 9 is disengaged from the limit slot 10, which is convenient for the overall measurement of the device. When the two groups of protective electrodes 2 reach the measured position, rotating the rotating rod 4 makes the top holding ball 6 disengage from the limit slot 7. At this time, the auxiliary plate 8 and the mounting plate 5 move toward the direction close to the scale 1 under the support of the spring. At this time, the limit plate 9 is located in the limit slot 10, completing the limitation of the protective electrode 2 and preventing the protective electrode 2 from being displaced under the action of external force, resulting in erroneous readings between the two groups of protective electrodes 2. The specific measurement steps are the same as those in the patent "CN210228140U A device for measuring the nerve conduction velocity of animals in vivo".

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for measuring nerve conduction velocity in animals or humans, characterized in that: The device for measuring nerve conduction velocity of an animal or human body comprises: A scale (1), wherein a protective electrode (2) is slidably connected to the surface of the scale (1), a rotating rod (4) is rotatably connected to the surface of the scale (1), a mounting plate (5) and an auxiliary plate (8) are sleeved on the surface of the rotating rod (4), and a top holding ball (6) is arranged on the surface of the mounting plate (5), the top holding ball (6) contacts the surface of a positioning plate (3), and the positioning plate (3) is arranged on the surface of the scale (1); The limiting plate (9) is arranged on the surface of the auxiliary plate (8), the limiting plate (9) is located in the limiting slot (10), and the limiting slot (10) is opened on the surface of the protective electrode (2).

2. The device for measuring nerve conduction velocity of an animal or human body according to claim 1, characterized in that: The protective electrodes (2) are provided with two groups, and the position limiting slots (10) are provided with multiple groups. The multiple groups of position limiting slots (10) are distributed at equal distances and in equal sizes, and the position limiting slots (10) are in a square plate-shaped slot structure.

3. The device for measuring nerve conduction velocity of an animal or human body according to claim 2, characterized in that: The rotating rod (4) is a T-shaped columnar structure, the rotating rod (4) passes through the positioning plate (3), the positioning plate (3) is a square plate-shaped structure, and the mounting plate (5) is a square plate-shaped structure, and the top holding ball (6) is a hemispherical structure.

4. The device for measuring nerve conduction velocity of an animal or human body according to claim 3, characterized in that: The top holding balls (6) are provided in two groups, the two groups of top holding balls (6) are symmetrically distributed about the center of the mounting plate (5), and the top holding balls (6) are located in the limiting grooves (7), the limiting grooves (7) are provided on the surface of the positioning plate (3), and the limiting grooves (7) are spherical grooves.

5. The device for measuring nerve conduction velocity of an animal or human body according to claim 4, characterized in that: The auxiliary plate (8) is in a square plate-like structure. The auxiliary plate (8) is located between the rotating rod (4) and the mounting plate (5). The limiting plate (9) is in a square plate-like structure. A plurality of groups of limiting plates (9) are provided. The plurality of groups of limiting plates (9) are distributed at equal distances and in equal sizes.

6. The device for measuring nerve conduction velocity of an animal or human body according to claim 5, characterized in that: A spring is arranged between the rotating rod (4) and the auxiliary plate (8), the spring being sleeved on the outside of the rotating rod (4), and a guide arc surface is arranged on the side where the top holding ball (6) contacts the positioning plate (3), and two groups of rotating rods (4) are arranged, and the two groups of rotating rods (4) are symmetrically distributed about the center of the scale (1).

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