CN212996455U

CN212996455U - Somatosensory evoked potential electrode device

Info

Publication number: CN212996455U
Application number: CN202020397944.8U
Authority: CN
Inventors: 张云茜
Original assignee: YUNNAN SECOND PEOPLE'S HOSPITAL
Current assignee: YUNNAN SECOND PEOPLE'S HOSPITAL
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2021-04-20
Anticipated expiration: 2030-03-25

Abstract

The utility model discloses an electrode device for somatosensory evoked potential, which comprises a stainless steel needle body and a needle handle, wherein the surface of the needle body is coated with a polytetrafluoroethylene layer, the needle tail part is fixedly connected with a copper plug, and a clamping handle vertical to the needle body is arranged at a position close to the needle tail; the clamp handle is in a strip shape, arc-shaped flying wings are arranged at the end, far away from the needle body, of the clamp handle, a rotating shaft is arranged at the flying wings, an auxiliary clamp handle is arranged through the rotating shaft, the auxiliary clamp handle is consistent with the clamp handle in shape, and a torsion spring is arranged on the rotating shaft. The electrode needle is convenient to insert into the animal model body, and can be fixed in the animal body, so that the somatosensory evoked potential detection is successfully completed.

Description

Somatosensory evoked potential electrode device

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to body sense evoked potential's electrode assembly.

Background

The modern evoked potential technology is a measuring technology for observing the electrical activity of human brain, is the bioelectrical activity generated by various specific stimulations of the central nervous system inside and outside a receptor, is noninvasive detection, and opens up a new way for clinical neurophysiological research for understanding brain functions. Somatosensory evoked potentials refer to potentials recorded at different locations in the somatosensory ascending pathway that stimulate thick sensory fibers at the extremities of the limb. Evoked potentials are different for different limbs, and differences in stimulation characteristics are reflected in the waveform structure of the evoked potentials. The method uses animal models to simulate and establish evoked potential waveform structures of different limbs, and has very important significance for researching somatosensory evoked potentials of human bodies.

When the body sense evoked potential of animals is inspected, because the skin of many animals (such as pigs, monkeys, etc.) is thick, the conventional inspection by using a non-invasive disc electrode commonly used for human body detection may cause the waveform attenuation or low amplitude of the detected evoked potential and difficult identification; meanwhile, as the animal hair is thick, smooth and thick, the disc-shaped electrode pasted on the skin by the conductive paste is easy to fall off or shift along with the extension of the detection time.

When the acupuncture needle is used as an electrode needle for evoked potential detection, the acupuncture needle body is slender and not easy to fix, and the material is soft and easy to bend or break, so that the acupuncture needle is difficult to insert into thicker animal skin for evoked potential detection; for small animals (such as rats), the body size is relatively small, the anesthetic dose is not easy to master, the animal is easy to die due to excessive anesthesia, the animal is still in a conscious state when the anesthetic dose is insufficient, physical activity or limb twitching occurs in current stimulation detection due to pain in the process of inserting the needle, and the electrode needle is easy to fall off along with the movement of the animal after being inserted and is difficult to fix.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem, designed an body and felt evoked potential's electrode assembly, made things convenient for the electrode needle to insert the animal model internal to can fix the electrode needle on the toy health, make body feel evoked potential and detect smooth completion.

In order to solve the above technical problem and achieve the above technical effect, the utility model discloses a following technical content realizes:

an electrode device for somatosensory evoked potential comprises a stainless steel needle body and a needle handle, wherein the surface of the needle body is coated with a polytetrafluoroethylene layer, the needle tail part is fixedly connected with a copper plug, and a clamping handle vertical to the needle body is arranged at a position close to the needle tail; the clamp handle is in a strip shape, arc-shaped flying wings are arranged at the end, far away from the needle body, of the clamp handle, a rotating shaft is arranged at the flying wings, an auxiliary clamp handle is arranged through the rotating shaft, the auxiliary clamp handle is consistent with the clamp handle in shape, and a torsion spring is arranged on the rotating shaft.

Further, the length of the needle body is 1cm-2 cm.

The utility model has the advantages that:

1. the needle handle is arranged on the needle body, so that an operator can apply pressure to smoothly insert the needle body into the skin, and the operation is simple and convenient.

2. The needle body can be conveniently fixed on the small animal body with shallow consciousness by arranging the clamp handle, so that the somatosensory evoked potential detection is successfully completed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of a somatosensory evoked potential electrode device according to the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1-needle body, 2-needle handle, 3-clamp handle, 301-flying wing, 4-rotating shaft, 5-auxiliary clamp handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, the somatosensory evoked potential electrode device comprises a stainless steel needle body 1 and a needle handle 2, wherein a polytetrafluoroethylene layer is coated on the surface of the needle body 1, a copper plug is fixedly connected to the needle tail part, and a clamp handle 3 vertical to the needle body 1 is arranged at a position close to the needle tail; the clamp holder 3 is a strip-shaped clamp holder 3, the end of the clamp holder 3, which is far away from the needle body 1, is provided with a circular arc-shaped flying wing 301, a rotating shaft 4 is arranged at the flying wing 301, an auxiliary clamp holder 5 is arranged through the rotating shaft 4, the auxiliary clamp holder 5 and the clamp holder 3 are in the same shape, and a torsion spring is arranged on the rotating shaft 4.

The length of the needle body 1 is 1cm-2 cm.

For a clearer description of the present invention, the following description is made with reference to specific embodiments:

examples

The utility model relates to a body sense evoked potential's specific application when electrode assembly uses is: when the stainless steel needle is used, an operator holds the needle handle to insert the needle body into the skin of an animal, pushes the needle body into the skin through the needle handle, and uses the stainless steel needle body, so that the needle body can be easily and quickly inserted into the skin, and is not easy to break; after the needle body is inserted into the animal body, the clamp handle and the flying wings of the auxiliary clamp handle move in the opposite direction to enable the auxiliary clamp handle to rotate along the rotating shaft, the auxiliary clamp handle and the clamp handle form a clamp to be clamped on animal fur, and the needle body is fixed.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An electrode device for somatosensory evoked potential, comprising: the stainless steel needle comprises a stainless steel needle body and a needle handle, wherein the surface of the needle body is coated with a polytetrafluoroethylene layer, the needle tail part is fixedly connected with a copper plug, and a clamping handle vertical to the needle body is arranged at a position close to the needle tail; the clamp handle is in a strip shape, arc-shaped flying wings are arranged at the end, far away from the needle body, of the clamp handle, a rotating shaft is arranged at the flying wings, an auxiliary clamp handle is arranged through the rotating shaft, the auxiliary clamp handle is consistent with the clamp handle in shape, and a torsion spring is arranged on the rotating shaft.

2. The somatosensory evoked potential electrode assembly according to claim 1, wherein: the length of the needle body is 1cm-2 cm.