CN218960752U - A neural evoked potential instrument - Google Patents

Abstract

The utility model relates to the technical field of potentiometers, in particular to a nerve evoked potential meter which comprises a potentiometer main body, wherein an electric stimulator is arranged in the potentiometer main body, the output end of the electric stimulator is fixedly connected with a first lead, and the end part of the first lead is fixedly connected with a stimulating electrode. This nerve evoked potential instrument, first wire and second wire of outside pulling at first, first wire and second wire drive the rolling section of thick bamboo and rotate when being stretched, first wire and second wire are prolonged this moment, after adjusting to suitable length, open the motor, the motor drives the lead screw and rotates, drive first slider and remove along the lead screw under the effect of guide bar when the lead screw rotates, along with the removal of first slider, the connecting rod squints, take the second slider to follow the slide bar centripetal when the connecting rod squints and remove, at this moment the second slider extrudes first spring and take splint to carry out centre gripping fixed to first wire and second wire, length adjustment is accomplished.

Description

A kind of neural evoked potential instrument

technical field

The utility model relates to the technical field of potentiometers, in particular to a nerve-induced potential meter.

Background technique

The evoked potential instrument is a special instrument for detecting the electrophysiology of the human body. It collects the biopotential signal of the human body into the system through a high-precision preamplifier, and then performs post-processing of the bioelectric waveform to determine the functions of the neuromuscular system and the central nervous system. Is it normal.

The existing patent (publication number: CN213309787U) discloses an electromyography evoked potential inspection device, including a base and a shell, including: a potentiometer, including a potentiometer main body, a preamplifier and a probe, the potentiometer main body and the preamplifier The amplifier is connected through the transmission signal line, the preamplifier is connected with the probe through the sampling signal line; the computer includes a host and a display host, the host is electrically connected with the display host, and the potentiometer main body is connected with the The host is electrically connected, and the inventor found the following problems in the prior art in the process of realizing the utility model: 1. During the use of the evoked potential instrument, the stimulating electrode and the recording electrode need to be placed on the designated parts of the human body, and the stimulating electrode and the recording electrode Usually, the extension cord is extended to the outside of the instrument for stimulation and recording operations. Some patients are inconvenient to move while lying in bed. Adjust the length; 2. Long-term exposure of the extension line of the evoked potential meter to the outside of the instrument will easily lead to aging and short circuit, and it is inconvenient for the instrument to take protective measures for the electrode extension line.

Utility model content

The purpose of this utility model is to provide a nerve-evoked potential instrument to solve the problems in the above-mentioned background technology that it is inconvenient to adjust the length of the extension line according to actual needs, and it is inconvenient to take protective measures for the electrode extension line. In order to achieve the above object, the utility model provides the following technical solutions: a nerve-evoked potential instrument, including a potentiometer main body, an electric stimulator is installed inside the potentiometer main body, and the output end of the electric stimulator is fixedly connected with a first A wire, the end of the first wire is fixedly connected with a stimulating electrode;

The inside of the main body of the potentiometer is equipped with a preamplifier, the input end of the preamplifier is fixedly connected with a second wire, and the end of the second wire is fixedly connected with a recording electrode, and the inside of the main body of the potentiometer is installed There is a controller, the upper end of the main body of the potentiometer is fixedly connected with a display host, the electric stimulator, the preamplifier, and the display host are all electrically connected to the controller, and a fixed frame is installed on the outer wall of the main body of the potentiometer. The inner wall of the fixed frame is rotatably connected with a reel, the inner wall of the reel is fixedly connected with a torsion spring, the lower end of the torsion spring is fixedly connected with the inner wall of the fixed frame, and the first wire and the second wire are connected with the The outer wall of the reel is fixedly connected, and a motor is installed on the upper surface of the fixed frame, and the output end of the motor is movably connected with the first wire and the second wire through a transmission member.

Preferably, the transmission member includes a screw rod, a guide rod, a first slider, a connecting rod, a second slider, a slider rod, a first spring and a splint, and the end of the screw rod is fixedly connected to the output end of the motor , the outer wall of the screw rod is threadedly connected to the inner wall of the first slider, the inner wall of the first slider is slidably connected to the outer wall of the guide rod, the end of the guide rod is fixedly connected to the inner wall of the fixed frame, the The outer wall of the first slider is rotatably connected to the connecting rod, the end of the connecting rod is rotatably connected to the outer wall of the second slider, the inner wall of the second slider is slidably connected to the outer wall of the slider, and the end of the slider is rotatably connected to the outer wall of the slider. The end is fixedly connected with the inner wall of the fixed frame, the first spring is connected with the sliding rod, the end of the first spring is closely attached to the outer wall of the second slider, and the lower surface of the second slider is in contact with the outer wall of the second slider. The splint is fixedly connected, and the first lead and the second lead are closely attached to the splint.

Preferably, the first wires and the fixing frame are arranged through an interspersed connection, and the first wires and the stimulating electrodes are arranged perpendicular to each other.

Preferably, the display host and the main body of the potentiometer are arranged perpendicular to each other, and the motor and the fixing frame are arranged perpendicular to each other.

Preferably, the screw rod and the guide rod are arranged parallel to each other, and the longitudinal centerlines of the first slider and the screw rod are coincidently arranged.

Preferably, the second slider and the slider are arranged on the same straight line, and the second slider and the splint are arranged perpendicular to each other.

Compared with the prior art, the utility model has the beneficial effects:

In the utility model, the first wire and the second wire are first pulled outward, and when the first wire and the second wire are stretched, the winding drum is driven to rotate. At this time, the first wire and the second wire are extended and adjusted to a suitable After the length is reached, turn on the motor, and the motor drives the screw to rotate. When the screw rotates, it drives the first slider to move along the screw under the action of the guide rod. With the movement of the first slider, the connecting rod is offset, and the connecting rod is deflected. When moving, the second slider moves centripetally along the slide bar. At this time, the second slider squeezes the first spring and clamps and fixes the first wire and the second wire with the splint. The length adjustment is completed, which solves the problem of existing problems. The evoked potential meter is inconvenient to adjust the length of the extension line according to actual needs.

In the utility model, after use, turn on the motor to rotate the motor in reverse, the motor drives the screw to rotate, and when the screw rotates, it drives the first slider to move along the screw under the action of the guide rod. Move, the connecting rod is offset, and when the connecting rod is offset, it moves outward along the slider with the second slider, releasing the clamping limit on the first wire and the second wire. At this time, the return spring has no limiting force and starts Rebound, during the rebound process, it rotates with the reel, and the reel rewinds the first wire and the second wire, which solves the problem that the existing induced potentiometer is inconvenient to take protective measures for the electrode extension wire.

Description of drawings

Fig. 1 is the front structural sectional view of the utility model;

Fig. 2 is the schematic diagram of enlarged structure at A place in Fig. 1 of the present utility model;

Fig. 3 is the side view structural representation of the utility model;

Fig. 4 is a top view structural diagram of the utility model.

In the figure: 1. Main body of potentiometer; 2. Electric stimulator; 3. First wire; 4. Stimulating electrode; 5. Preamplifier; 6. Second wire; 7. Recording electrode; 8. Controller; 9. Display host; 10, fixed frame; 11, reel; 12, torsion spring; 13, motor; 14, screw rod; 15, guide rod; 16, first slider; 17, connecting rod; 18, second slider Block; 19, slide bar; 20, first spring; 21, splint.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1 to Fig. 4, the utility model provides a kind of technical solution: a kind of nerve evoked potential instrument, comprises potentiometer main body 1, and electric stimulator 2 is installed inside potentiometer main body 1, and the output end of electric stimulator 2 A first wire 3 is fixedly connected, and the end of the first wire 3 is fixedly connected with a stimulating electrode 4;

The inside of the potentiometer main body 1 is equipped with a preamplifier 5, the input end of the preamplifier 5 is fixedly connected with a second lead 6, the end of the second lead 6 is fixedly connected with a recording electrode 7, and the inside of the potentiometer main body 1 is installed with a The controller 8, the upper end of the potentiometer main body 1 is fixedly connected with the display host 9, the electric stimulator 2, the preamplifier 5, and the display host 9 are all electrically connected with the controller 8, and the outer wall of the potentiometer main body 1 is equipped with a fixed frame 10 , the inner wall of the fixed frame 10 is rotatably connected with a reel 11, the inner wall of the reel 11 is fixedly connected with a torsion spring 12, the lower end of the torsion spring 12 is fixedly connected with the inner wall of the fixed frame 10, the first lead 3 and the second lead 6 They are all fixedly connected to the outer wall of the reel 11, and the upper surface of the fixed frame 10 is equipped with a motor 13, and the output end of the motor 13 is connected to the first wire 3 and the second wire 6 through a transmission part. When using the nerve evoked potential During instrumentation, the model of the controller 8 is a C8051F020 single-chip microcomputer. First, the first wire 3 and the second wire 6 are pulled outward. When the first wire 3 and the second wire 6 are stretched, the winding drum 11 is driven to rotate. Lead wire 3 and second lead wire 6 are extended, after being adjusted to suitable length, turn on motor 13, and motor 13 drives screw mandrel 14 to rotate, and when screw mandrel 14 rotates, drives first slide block 16 to move along screw mandrel under the effect of guide rod 15. 14 moves, with the movement of the first slider 16, the connecting rod 17 is offset, and when the connecting rod 17 is offset, the second slider 18 is moved along the slider 19 centripetally. At this time, the second slider 18 squeezes The first spring 20 and the splint 21 clamp and fix the first lead 3 and the second lead 6. After the length adjustment is completed, the stimulating electrode 4 at the end of the first lead 3 is attached to the patient's detection site, and the second lead 6 The recording electrode 7 at the end is attached to the patient's detection site, and then the preamplifier 5, the electric stimulator 2 and the display host 9 are turned on through the controller 8. At this time, the electric stimulator 2 sends an evoked potential signal through the stimulating electrode 4 to act on the detected Then the preamplifier 5 receives the evoked potential signal fed back by the detection place through the recording electrode 7, and amplifies the evoked potential signal through the preamplifier 5 and then transmits it to the controller 8, and the controller 8 converts the evoked potential signal to the The signal is transmitted to the display host 9 for display. After use, turn on the motor 13 to make the motor 13 reversely rotate. The motor 13 drives the screw mandrel 14 to rotate. Move along the screw rod 14, along with the movement of the first slider 16, the connecting rod 17 is offset, and when the connecting rod 17 is offset, it moves outward along the slider 19 with the second slider 18, releasing the first wire 3 and the clamping limit of the second wire 6, at this time, the return spring does not have a limiting force and starts to rebound. During the rebound, it rotates with the reel 11, and the reel 11 carries out the first wire 3 and the second wire 6. Winding.

In this embodiment, as shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the transmission member includes a screw mandrel 14, a guide rod 15, a first slider 16, a connecting rod 17, a second slider 18, and a slider 19 , the first spring 20 and the splint 21, the end of the screw mandrel 14 is fixedly connected with the output end of the motor 13, the outer wall of the screw mandrel 14 is screwed with the inner wall of the first slider 16, the inner wall of the first slider 16 is connected with the guide rod The outer wall of 15 is slidingly connected, the end of guide rod 15 is fixedly connected with the inner wall of fixed frame 10, the outer wall of first slider 16 is connected with connecting rod 17 in rotation, and the end of connecting rod 17 is rotated with the outer wall of second slider 18 connection, the inner wall of the second slider 18 is slidably connected with the outer wall of the slide bar 19, the end of the slide bar 19 is fixedly connected with the inner wall of the fixed frame 10, the first spring 20 and the slide bar 19 are inserted and connected, and the end of the first spring 20 part and the outer wall of the second slider 18 are closely attached, the lower surface of the second slider 18 is fixedly connected with the splint 21, the first wire 3 and the second wire 6 are closely attached to the splint 21, the motor 13 is turned on, and the motor 13 drives The screw mandrel 14 rotates, and when the screw mandrel 14 rotates, it drives the first slider 16 to move along the screw mandrel 14 under the action of the guide rod 15. With the movement of the first slider 16, the connecting rod 17 shifts, and the connecting rod 17 deflects. When moving, the second slider 18 moves centripetally along the slide bar 19. At this time, the second slider 18 presses the first spring 20 and clamps and fixes the first wire 3 and the second wire 6 with the splint 21. Length adjustment is complete.

In this embodiment, as shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the first lead wire 3 and the fixed frame 10 are arranged for interspersed connection, the first lead wire 3 and the stimulating electrode 4 are arranged perpendicular to each other, and the interspersed connection is conveniently arranged The first wires 3 pass through the fixed frame 10 for detection, and the vertical arrangement increases the stability between the first wires 3 and the stimulating electrodes 4 .

In this embodiment, as shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the display host 9 and the potentiometer main body 1 are arranged perpendicularly to each other, and the motor 13 and the fixed frame 10 are arranged perpendicularly to each other, and the arrangement perpendicular to each other increases the display The stability between the host machine 9 and the potentiometer main body 1 is arranged vertically to increase the stability between the motor 13 and the fixed frame 10 .

In this embodiment, as shown in Figure 1, Figure 2, Figure 3 and Figure 4, the screw mandrel 14 and the guide rod 15 are arranged parallel to each other, and the longitudinal centerlines of the first slider 16 and the screw mandrel 14 are overlapped and arranged parallel to each other. The arrangement is convenient for the first slider 16 to be guided by the guide rod 15 when moving on the screw rod 14, and the overlapping arrangement increases the uniformity of the overall coverage.

In this embodiment, as shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the second slider 18 and the slide bar 19 are arranged on the same straight line, and the second slider 18 and the splint 21 are arranged perpendicular to each other, on the same straight line The uniformity of the overall coverage is increased, and the vertical arrangement increases the stability between the second slider 18 and the splint 21 .

The use method and advantages of the present utility model: when this kind of nerve evoked potential instrument is working, the working process is as follows:

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, when using the nerve-evoked potential instrument, the model of the controller 8 is a C8051F020 single-chip microcomputer, first pull the first wire 3 and the second wire 6 outwards, the first wire 3 and the second wire 6 are stretched to drive the reel 11 to rotate. At this time, the first wire 3 and the second wire 6 are extended. After adjusting to a suitable length, the motor 13 is turned on, and the motor 13 drives the screw mandrel 14 to rotate. When the screw mandrel 14 rotates, the first slider 16 is driven to move along the screw mandrel 14 under the action of the guide rod 15. With the movement of the first slider 16, the connecting rod 17 is offset, and the connecting rod 17 is offset with the second The second slider 18 moves centripetally along the slide bar 19. At this time, the second slider 18 squeezes the first spring 20 and clamps and fixes the first wire 3 and the second wire 6 with the splint 21. After the length adjustment is completed, the The stimulating electrode 4 at the end of the first lead 3 is close to the patient's detection place, and the recording electrode 7 at the end of the second lead 6 is close to the patient's detection place, and then the preamplifier 5, the electric stimulator 2 and the display are turned on by the controller 8 Host 9, at this time, the electric stimulator 2 sends the evoked potential signal to the detected place through the stimulating electrode 4, and then the preamplifier 5 receives the evoked potential signal fed back from the detected place through the recording electrode 7, and the evoked potential signal is transmitted through the preamplifier 5 After the signal is amplified, it is transmitted to the controller 8. After receiving the induced signal, the controller 8 converts it into an electrical signal and transmits it to the display host 9 for display. After use, turn on the motor 13 to make the motor 13 reversely rotate, and the motor 13 drives the screw. 14 rotates, and when the screw rod 14 rotates, it drives the first slider 16 to move along the screw rod 14 under the action of the guide rod 15. With the movement of the first slider 16, the connecting rod 17 is offset, and when the connecting rod 17 is offset With the second slide block 18 moving outward along the slide bar 19, the clamping limit to the first wire 3 and the second wire 6 is released. At this time, the return spring has no limiting force and starts to rebound. The reel 11 rotates, and the reel 11 rewinds the first wire 3 and the second wire 6 .

The basic principles, main features and advantages of the present utility model have been shown and described above. Technical staff in this industry should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions are only preferred examples of the utility model, and are not used to limit the utility model, without departing from the utility model Under the premise of the new spirit and scope, the utility model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (6)

1. A nerve evoked potential apparatus, comprising a potential apparatus main body (1), characterized in that: an electric stimulator (2) is arranged in the potentiometer main body (1), the output end of the electric stimulator (2) is fixedly connected with a first lead (3), and the end part of the first lead (3) is fixedly connected with a stimulating electrode (4);

the utility model discloses a potentiometer, including potentiometre main part (1), internally mounted, preamplifier (5), the input fixedly connected with second wire (6) of preamplifier (5), the tip fixedly connected with record electrode (7) of second wire (6), internally mounted of potentiometre main part (1) has controller (8), the upper end fixedly connected with of potentiometre main part (1) shows host computer (9), electric stimulator (2), preamplifier (5), show host computer (9) all with controller (8) electric connection, fixed frame (10) are installed to the outer wall of potentiometre main part (1), the inner wall rotation of fixed frame (10) is connected with rolling section of thick bamboo (11), the inner wall fixedly connected with torsional spring (12) of rolling section of thick bamboo (11), the inner wall fixedly connected with of lower extreme and fixed frame (10) of torsional spring (12), the upper surface mounting of first wire (3) and second wire (6) all with rolling section of thick bamboo (11) has motor (10) motor (13), output end and second wire (13) are connected with transmission piece (13).

2. A nerve evoked potential apparatus according to claim 1, wherein: the transmission piece comprises a screw rod (14), a guide rod (15), a first sliding block (16), a connecting rod (17), a second sliding block (18), a sliding rod (19), a first spring (20) and a clamping plate (21), wherein the end part of the screw rod (14) is fixedly connected with the output end of a motor (13), the outer wall of the screw rod (14) is fixedly connected with the inner wall of the first sliding block (16), the inner wall of the first sliding block (16) is fixedly connected with the outer wall of the guide rod (15), the end part of the guide rod (15) is fixedly connected with the inner wall of a fixed frame (10), the outer wall of the first sliding block (16) is rotationally connected with the outer wall of the connecting rod (17) and the outer wall of the second sliding block (18), the inner wall of the second sliding block (18) is fixedly connected with the outer wall of the sliding rod (19), the end part of the sliding rod (19) is fixedly connected with the inner wall of the fixed frame (10), the first spring (20) is in penetrating connection with the inner wall of the first sliding rod (19), the end part of the first spring (20) is fixedly connected with the outer wall of the second sliding rod (18), and the second sliding rod (18) is tightly attached to the second wire (21) and the second wire (21) is tightly attached to the surface of the second clamping plate (6).

3. A nerve evoked potential apparatus according to claim 1, wherein: the first lead (3) and the fixed frame (10) are connected in a penetrating mode, and the first lead (3) and the stimulation electrode (4) are arranged in a mutually perpendicular mode.

4. A nerve evoked potential apparatus according to claim 1, wherein: the display host (9) and the potentiometer main body (1) are arranged vertically, and the motor (13) and the fixed frame (10) are arranged vertically.

5. A nerve evoked potential apparatus according to claim 2, wherein: the screw rod (14) and the guide rod (15) are arranged in parallel, and the longitudinal center lines of the first sliding block (16) and the screw rod (14) are overlapped.

6. A nerve evoked potential apparatus according to claim 2, wherein: the second sliding block (18) and the sliding rod (19) are arranged on the same straight line, and the second sliding block (18) and the clamping plate (21) are arranged vertically.

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