CN220876989U - Rat fixer for spinal cord magnetic stimulation - Google Patents

Abstract

The utility model discloses a rat fixer for spinal cord magnetic stimulation, which comprises a fixing plate and a binding belt, wherein wing-shaped free ends are arranged on two sides of the binding belt, a magic tape is arranged at the wing-shaped free ends, a strip-shaped spinal column exposure window is arranged in the middle of the binding belt, two strip-shaped through holes are arranged in the middle of the fixing plate, the strip-shaped through holes are symmetrically arranged on two sides of a central line of the fixing plate, the wing-shaped free ends are made of flexible materials, and can penetrate through the strip-shaped through holes and are movably connected with the fixing plate through the magic tape in an adhering mode, a threaded hole is respectively arranged in front of and behind the strip-shaped through holes, and the threaded holes can be detachably connected with four limbs to block columns. The rat fixer for spinal cord magnetic stimulation provided by the embodiment of the utility model is convenient to operate, has a simple fixing process for rats, and can well solve the technical problems that in the prior art, the fixing operation of each component is complex, the fixing process is complex and an operator is easy to bite due to the fact that screws are needed to be screwed for fixing.

Description

Rat fixer for spinal cord magnetic stimulation

Technical Field

The utility model relates to the technical field of medical test auxiliary devices, in particular to a rat fixer for spinal cord magnetic stimulation.

Background

The magnetic stimulation treatment method is a method for treating diseases by applying a magnetic field to a human body. The magnetic field affects the current distribution of human body, the movement of charged particles, the permeability of membrane system, etc., so that the physiological and biochemical processes of tissue cells are changed, and the effects of easing pain, detumescence, promoting blood and lymph circulation, etc. are produced. In recent years, the magnetic stimulation treatment method is widely focused as a noninvasive, painless, safe and effective new technology in the field of medical scientific research, and various domestic and foreign researches prove that the magnetic stimulation can effectively improve symptoms of various diseases such as cerebral apoplexy, depression, spinal cord injury and the like. In the research of the magnetic stimulation treatment method, spinal cord magnetic stimulation is an important direction, and animal experiments are an important component of the research of spinal cord magnetic stimulation in order to acquire a large amount of test data.

In basic research experiments of medicine, most of the experimental subjects are rats. The treatment site of the magnetic stimulation of the rat is generally transcranial or extramenstrual Zhou Ru spinal cord and limbs, but displacement of a target segment or target site caused by movement or struggling of the rat often occurs, so that it is difficult to judge whether only the tissue of the target segment or target site is stimulated or not, and the accuracy of the experiment is greatly reduced. Aiming at the problem, the Chinese patent publication No. CN111110391A discloses a magnetic stimulation treatment fixer for fixing rats, which comprises a positioning plate, and a forehead fixing component, a neck fixing component, a cloth bag, a left hind limb fixing column and a right hind limb fixing column which are arranged on the positioning plate; the cloth bag is provided with a left forelimb exposure hole, a right forelimb exposure hole, a left hindlimb exposure hole, a right hindlimb exposure hole and a head and neck exposure hole; the forehead fixing assembly, the neck fixing assembly and the cloth bag are sequentially arranged, and the forehead fixing assembly is 3.0-4.5 cm away from the head and neck exposing hole, and the neck fixing assembly is 0.8-1.2 cm away from the head and neck exposing hole; the left hindlimb fixing column is more than 3.5cm away from the left hindlimb exposing hole; the right hindlimb fixation post was 3.5cm from the right hindlimb exposure hole. The fixing device can be used for primarily fixing rats, but the fixing operation of each component is complex, the fixing process is complex because the fixing device is screwed and fixed by screws, and operators are easy to bite.

The above therefore makes an urgent need for a holder that is simple in structure but can firmly hold rats.

Disclosure of utility model

The utility model mainly aims to provide a rat fixator for spinal cord magnetic stimulation, and aims to solve the technical problem of the existing fixator.

In order to achieve the above purpose, the utility model provides a rat fixer for spinal cord magnetic stimulation, which comprises a fixing plate and a binding belt, wherein wing-shaped free ends are arranged on two sides of the binding belt, a magic tape is arranged on the wing-shaped free ends, a strip-shaped spinal column exposure window is arranged in the middle of the binding belt, two strip-shaped through holes are arranged in the middle of the fixing plate, the strip-shaped through holes are symmetrically arranged on two sides of a central line of the fixing plate, the wing-shaped free ends are made of flexible materials, the wing-shaped free ends can penetrate through the strip-shaped through holes and are movably connected with the fixing plate through the magic tape, a threaded hole is respectively arranged in front of and behind the strip-shaped through holes, and the threaded hole can be detachably connected with an limbs abutment post.

Optionally, the fixer further comprises a head cover, the front end of the head cover is provided with a vent hole, the rear end of the head cover is provided with a neck clamping window, two sides of the neck clamping window are provided with a blocking column inserting hole, four limbs connected with threaded holes in front of the strip-shaped through holes in the blocking column inserting hole are in blocking column inserting connection, the bottom of the head cover is opened, and the left side, the right side and the top of the head cover are fixedly connected with each other.

Optionally, the support column spliced eye internal fixation sets up the magnet piece, four limbs support the top of support column and set up the iron cap.

Optionally, a forelimb limiting bayonet is arranged below the blocking plug hole of the head cover.

Optionally, left side edge, right side limit downwardly extending of fixed plate form C shape internal hook draw-in groove, C shape internal hook draw-in groove joint lifting support board, lifting support board's both sides arch forms the grafting ear, and the middle part of lifting support board is concave into the bearing platform for the grafting ear downwards, bearing platform's bottom is equipped with crane articulated table, crane articulated table sets up first upper hinge hole and second upper hinge hole, first upper hinge hole passes through the upper end of pivot articulated connection first hinge arm, second upper hinge hole passes through the upper end of pivot articulated connection second hinge arm, the lower extreme of first hinge arm and second hinge arm passes through the articulated seat on the base and is connected with the base hinge, the articulated seat sets up first lower hinge hole and second lower hinge hole, and the lower extreme of first hinge arm passes through the pivot and articulates with first lower hinge hole, and the second lower hinge hole is articulated, distance between first lower hinge hole and the second lower hinge hole and first upper hinge hole and second upper hinge hole are gone up the upper hinge hole and the second hinge hole, second upper hinge hole and the second hinge hole is equal in length through the second hinge seat, the second hinge hole is equal to the second hinge hole is connected with the second hinge hole, the second hinge arm is connected with the second hinge hole.

Optionally, the crane hinge table and the hinge seat are of a convex strip structure with the same width, the first upper hinge hole and the second upper hinge hole penetrate the crane hinge table, the first lower hinge hole, the second lower hinge hole and the third lower hinge hole penetrate the hinge seat, and the other sides of the crane hinge table and the hinge seat are hinged to be connected with another group of first hinge arms, second hinge arms and gas springs.

Optionally, a collar is disposed at the front end of the binding band.

Optionally, the material of constraint area is cloth, and the material of fixed plate, four limbs abutment post, hood, lift layer board, first articulated arm, second articulated arm, gas spring and base is plastics.

Optionally, the peripheral area of the bar-shaped spine exposure window in the middle of the binding belt is coated with a antimagnetic coating material, and the antimagnetic coating material is pyrolytic graphite.

The beneficial effects of the utility model are as follows:

In the preparation process of the test of the spinal cord magnetic stimulation research, the neck of the rat is firstly grasped, the abdomen of the rat is stuck to the fixing plate, meanwhile, the auxiliary personnel cover the spine of the rat with the binding belt, the wing-shaped free ends of the binding belt respectively penetrate through two strip-shaped through holes of the fixing plate, the two wing-shaped free ends are tensioned on the back of the fixing plate, so that the abdomen of the rat is stuck to the fastening fixing plate, and finally, the wing-shaped free ends are stuck to each other and fixed through the magic tape, so that the preliminary fixing of the rat is completed. In order to prevent swing of the four limbs of the rat, the four limb blocking column is fixedly connected to the threaded hole in a spiral manner, two positions are located below the armpit of the forelimb of the rat, two positions are located in front of the femur of the rat, after the four limb blocking column is connected, the four limb blocking column can form a stretching effect on the four limbs of the rat, and then the bending-over grabbing force of the four limbs of the rat is partially removed. After the fixation, the back of the rat is exposed to the bar-shaped spinal exposure window of the binding belt, and the fixation plate bound with the rat is moved to the operation table for test operation during the test.

The rat fixer for spinal cord magnetic stimulation provided by the embodiment of the utility model is convenient to operate, has a simple fixing process for rats, and can well solve the technical problems that in the prior art, the fixing operation of each component is complex, the fixing process is complex and an operator is easy to bite due to the fact that screws are needed to be screwed for fixing.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing the structure of a rat fixator for spinal cord magnetic stimulation according to an embodiment of the present utility model;

FIG. 2 is a front view of a rat holder for spinal cord magnetic stimulation according to an embodiment of the utility model;

FIG. 3 is a disassembled view of parts of a rat fixator for spinal cord magnetic stimulation according to an embodiment of the present utility model;

Fig. 4 is a schematic view showing the structure of a head cover of a rat fixator for spinal cord magnetic stimulation according to an embodiment of the present utility model.

Reference numerals illustrate:

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1 to 4, the embodiment of the utility model provides a rat fixator for spinal cord magnetic stimulation, which comprises a fixing plate 01 and a binding belt 03, wherein wing-shaped free ends 031 are arranged on two sides of the binding belt 03, a magic tape 032 is arranged on the wing-shaped free ends 031, a bar-shaped spine exposure window 033 is arranged in the middle of the binding belt 03, two bar-shaped through holes 011 are arranged in the middle of the fixing plate 01, the bar-shaped through holes 011 are symmetrically arranged on two sides of a central line of the fixing plate 01, the wing-shaped free ends 031 are made of flexible materials, the wing-shaped free ends 031 can penetrate through the bar-shaped through holes 011 and are movably connected with the fixing plate 01 through the binding of the magic tape 032, a threaded hole 012 is respectively arranged in front of and behind the bar-shaped through holes 011, and the threaded hole 012 is detachably connected with an extremity blocking column 013.

Rats belong to the phylum vertebrata, class mammalia, order rodentia, murine, rat animal, are commonly used laboratory animals, widely used in biomedical research in various fields. In the test process of spinal cord magnetic stimulation research, an adult male rat with a preferred body length of about 20CM and a body width of about 4CM has a tail length of generally 8CM and a head length of generally about 5CM, and in the preparation process of the test of spinal cord magnetic stimulation research, the neck of the rat is firstly grasped, the abdomen of the rat is stuck to the fixing plate, meanwhile, the auxiliary personnel cover the spine of the rat with the binding belt, then the wing-shaped free ends of the binding belt respectively pass through two strip-shaped through holes of the fixing plate, the two wing-shaped free ends are tensioned at the back of the fixing plate to enable the abdomen of the rat to be stuck to the fixing plate, and finally the wing-shaped free ends are mutually stuck and fixed through the magic tape, so that the preliminary fixing of the rat is completed. In order to prevent swing of the four limbs of the rat, the four limb blocking column is fixedly connected to the threaded hole in a spiral manner, two positions are located below the armpit of the forelimb of the rat, two positions are located in front of the femur of the rat, after the four limb blocking column is connected, the four limb blocking column can form a stretching effect on the four limbs of the rat, and then the bending-over grabbing force of the four limbs of the rat is partially removed. After the fixation, the back of the rat is exposed to the bar-shaped spinal exposure window of the binding belt, and the fixation plate bound with the rat is moved to the operation table for test operation during the test.

The rat fixer for spinal cord magnetic stimulation provided by the embodiment of the utility model is convenient to operate, has a simple fixing process for rats, and can well solve the technical problems that in the prior art, the fixing operation of each component is complex, the fixing process is complex and an operator is easy to bite due to the fact that screws are needed to be screwed for fixing.

In an embodiment, the rat fixer for spinal cord magnetic stimulation of the embodiment of the utility model further comprises a head cover 05, wherein a vent 051 is arranged at the front end of the head cover 05, a neck clamping window 052 is arranged at the rear end of the head cover 05, blocking column inserting holes 053 are arranged at two sides of the neck clamping window 052, the blocking column inserting holes 053 are in inserting connection with four limbs blocking columns 013 connected with threaded holes in front of the strip-shaped through holes 011, the bottom of the head cover 05 is opened, and the left side and the right side of the head cover are fixedly connected with the top of the head cover. The head of the rat can be better sleeved through the head cover, so that the rat is in a relatively calm state in the test process, and meanwhile, the rat bite of a tester in the test process can be better prevented.

In an embodiment, the blocking column insertion hole 053 is internally and fixedly provided with a magnet piece 055, and the top end of the four limbs blocking column 013 is provided with an iron column cap 015. Through the magnetic attraction effect of magnet piece and iron cap, can be more quick when the hood is pegged graft to four limbs and is supported on keeping off the post, and the magnetic attraction effect of magnet piece and iron cap also can be fixed the hood on four limbs supports the post, prevents that the neck portion of rat from struggling off together with the hood in the test.

In one embodiment, a forelimb limiting bayonet 054 is arranged below the blocking plug hole 053 of the head cover 05. The forelimb limiting bayonet can limit the forelimb of the rat between the head cover and the limb supporting column, further limit the swing of the forelimb of the rat, and avoid the swing of the forelimb of the rat from affecting the smooth performance of the test.

In an embodiment, the left side edge and the right side edge of the fixing plate 01 extend downwards to form a C-shaped inner hook clamping groove 014, the C-shaped inner hook clamping groove 014 is in clamping connection with the lifting supporting plate 06, two sides of the lifting supporting plate 06 are protruded to form a plug lug 061, the middle of the lifting supporting plate 06 is concave downwards relative to the plug lug 061 to form a supporting platform 062, a lifting frame hinge table 063 is arranged at the bottom of the supporting platform 062, a first upper hinge hole 064 and a second upper hinge hole 065 are arranged at the lifting frame hinge table 063, the first upper hinge hole 064 is connected with the upper end of a first hinge arm 066 through a shaft pin hinge, the second upper hinge hole 065 is connected with the upper end of a second hinge arm 067 through a shaft pin hinge, the lower ends of the first hinge arm 066 and the second hinge arm 067 are connected with a base 08 through hinge seats 081 hinge joints, the hinge seats 082 and the second lower hinge holes 083 are arranged at the hinge seats 086, the lower ends of the first hinge arms 086 are connected with the second hinge holes 083 through the lower hinge joints of the base 08 through shaft pins 083, the lower ends of the first hinge arms 083 and the second hinge arms 083 are connected with the second hinge arms 084 through the second hinge holes 083 through the other sides of the upper ends of the second hinge arms 084, and the lower hinge arms 083 are connected with the second hinge arms 083 through the lower hinge holes 083.

The first articulated arm, the second articulated arm and the distance are the same, and simultaneously, the distance between the first upper articulated hole and the second upper articulated hole is equal to the distance between the first lower articulated hole and the second lower articulated hole, and a parallelogram is formed between the first articulated hole and the second lower articulated hole, namely, the lifting supporting plate can lift up and down in parallel relative to the base. On the basis, the gas spring and the second articulated arm form a triangular supporting relationship, the included angle between the second articulated arm and the base is adjusted through the expansion and contraction of the movable end of the gas spring, the movable end of the damping piston inside the gas spring can be stopped at will in the expansion and contraction process, and therefore the gas spring supports and fixes the second articulated arm, and finally the lifting supporting plate is fixed relative to the base. In the actual use process, the fixed plate bound with the rat is connected with the lifting supporting plate in a plugging manner through the C-shaped inner hook clamping groove and the plug-in lug, the fixed plate can be lifted by forcefully pressing down or lifting up, the adjustment of the rat position in the test process can be better met, and the use is more convenient.

In an embodiment, the lifting frame hinge table 063 and the hinge seat 081 have a convex strip structure with the same width, the first upper hinge hole 064 and the second upper hinge hole 065 penetrate through the lifting frame hinge table 063, the first lower hinge hole 082, the second lower hinge hole 083 and the third lower hinge hole 084 penetrate through the hinge seat 081, and the other sides of the lifting frame hinge table 063 and the hinge seat 081 are hinged with the other groups of the first hinge arm 066, the second hinge arm 067 and the air spring 09. The two groups of first articulated arms, the second articulated arms and the gas springs can be used for connecting and supporting acting forces between the lifting articulated platform and the articulated seat to be distributed more uniformly, and the lifting process is also more stable.

In one embodiment, a collar 034 is provided at the front end of the binding band 03. The neck of the rat can be sleeved by the lantern ring, so that the rat is prevented from struggling off from the front end of the binding belt in the process of fixing the rat by the binding belt.

In an embodiment, the binding belt 03 is made of cloth, and the fixing plate 01, the limb supporting posts 013, the head cover 05, the lifting supporting plate 06, the first hinge arm 066, the second hinge arm 067, the gas spring 09 and the base 08 are made of plastic. The cloth used for the binding belt can ensure the flexibility and tensile strength of the binding belt at low cost, and the materials of the other parts are plastics, so that the production cost can be reduced under the condition of ensuring the supporting force, and the binding belt is suitable for mass production and application.

It is worth to say that, the base can be used for stabilizing the fixer according to the needs of experimental magnetism stimulation output intensity to select iron class big weight base for guarantee that the fixer can not produce the displacement because of rocking in the experiment. Meanwhile, a layer of buffer pad can be stuck and fixed on the upper surface of the fixing plate, so that the rat is prevented from being damaged by long-time compression.

In one embodiment, the peripheral region of the bar-shaped spinal exposure window 033 in the middle of the binding band 03 is coated with a diamagnetic coating material 035, which is pyrolytic graphite. The peripheral area of the strip-shaped spine exposure window is coated with an antimagnetic coating material, so that adverse effects of magnetic fields generated by coils on other parts of the rat body and other systems (digestion, reproduction, respiratory system and the like) can be effectively avoided. And the diamagnetic performance of pyrolytic graphite in the diamagnetic coating material is strong.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (9)

1. The utility model provides a rat fixer for spinal cord magnetic stimulation, includes the fixed plate, and restraints the area, its characterized in that, the both sides that restraints the area set up wing form free end, wing form free end sets up the magic subsides, the middle part that restraints the area sets up bar backbone and exposes the window, the middle part of fixed plate is provided with two bar through-holes, bar through-hole symmetry sets up the central line both sides at the fixed plate, wing form free end is flexible material, and wing form free end can pass the bar through-hole to through magic subsides bonding and fixed plate swing joint, the place ahead and the rear of bar through-hole respectively set up a screw hole, the screw hole can dismantle the connection four limbs and support the fender post.

2. The rat fixer for spinal cord magnetic stimulation according to claim 1, further comprising a head cover, wherein the front end of the head cover is provided with a vent hole, the rear end of the head cover is provided with a neck clamping window, two sides of the neck clamping window are provided with a blocking column inserting hole, four limbs, which are connected with threaded holes in front of the strip-shaped through holes, of the blocking column inserting hole are inserted and connected with the blocking column, the bottom of the head cover is opened, and the left side and the right side of the head cover are fixedly connected with the top of the head cover.

3. The rat fixer for spinal cord magnetic stimulation according to claim 2, wherein the plug hole of the resisting column is fixedly provided with a magnet sheet, and the top end of the limb resisting column is provided with an iron column cap.

4. A rat fixator for spinal cord magnetic stimulation according to claim 2, wherein the head cover is provided with forelimb limiting bayonet under the abutment socket.

5. The rat fixer for spinal cord magnetic stimulation according to claim 4, wherein the left side edge and the right side edge of the fixing plate extend downwards to form a C-shaped inner hook clamping groove, the C-shaped inner hook clamping groove is clamped to be connected with a lifting supporting plate, two sides of the lifting supporting plate are protruded to form inserting lugs, the middle part of the lifting supporting plate is concave downwards relative to the inserting lugs to form a supporting platform, a lifting frame hinge table is arranged at the bottom of the supporting platform, the lifting frame hinge table is provided with a first upper hinge hole and a second upper hinge hole, the first upper hinge hole is connected with the upper end of a first hinge arm through a shaft pin hinge, the second upper hinge hole is connected with the upper end of a second hinge arm through a shaft pin hinge, the lower ends of the first hinge arm and the second hinge arm are connected with the base through a hinge seat on the base, the hinge seat is provided with a first lower hinge hole and a second lower hinge hole, the lower end of the first hinge arm is hinged with the first lower hinge hole through a shaft pin hinge hole, the lower end of the second hinge arm is hinged with the second lower hinge hole, the first hinge hole is connected with the second hinge hole through a second hinge hole, the distance between the first lower hinge hole and the second hinge hole is equal to the second hinge hole, and the second hinge hole is connected with the second hinge hole through the other side of the second hinge hole.

6. The rat holder for spinal cord magnetic stimulation of claim 5, wherein the lifting frame hinge base and the hinge base are of a convex strip structure with the same width, the first upper hinge hole and the second upper hinge hole penetrate through the lifting frame hinge base, the first lower hinge hole, the second lower hinge hole and the third lower hinge hole penetrate through the hinge base, and the other group of the first hinge arm, the second hinge arm and the gas spring are hinged on the other sides of the lifting frame hinge base and the hinge base.

7. A rat fixator for spinal cord magnetic stimulation according to claim 6, wherein the front end of the binding strap is provided with a collar.

8. The rat fixator for spinal cord magnetic stimulation of claim 7 wherein the binding strap is cloth, and the fixing plate, limb abutment, head cover, lifting support, first hinge arm, second hinge arm, gas spring and base are plastic.

9. The rat fixator for spinal cord magnetic stimulation of claim 8 wherein the central, strip-shaped spinal exposure window peripheral region of the binding band is coated with an anti-magnetic coating material that is pyrolytic graphite.