A multi-acupoint precise positioning rat electro-acupuncture experiment fixing device

By designing a rat electroacupuncture fixation device with precise multi-acupoint positioning, the problems of insufficient acupoint exposure and unstable limb fixation were solved, achieving stable fixation of rats and precise exposure of multiple acupoints, thus improving the accuracy and efficiency of the experiment.

CN122140403APending Publication Date: 2026-06-05THE SECOND AFFILIATED HOSPITAL OF ANHUI UNIVERSITY OF TRADITIONAL CHINESE MEDICINE (ACUPUNCTURE AND MOXIBUSTION HOSPITAL OF ANHUI PROVINCE)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
THE SECOND AFFILIATED HOSPITAL OF ANHUI UNIVERSITY OF TRADITIONAL CHINESE MEDICINE (ACUPUNCTURE AND MOXIBUSTION HOSPITAL OF ANHUI PROVINCE)
Filing Date
2026-03-27
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing rat electroacupuncture fixation devices suffer from insufficient acupoint exposure and insecure limb fixation, affecting experimental accuracy and data reliability.

Method used

A rat electroacupuncture experimental fixation device with precise multi-acupoint positioning was designed, including fixation components for the head, trunk, limbs and tail. Flexible materials and adjustable fixation structure are used to ensure that the acupoints are fully exposed and the rat's limbs are firmly fixed to prevent the electroacupuncture needles from falling off.

Benefits of technology

This method enables precise exposure and stable fixation of multiple acupoints, reduces stress response in rats, improves experimental accuracy and efficiency, and ensures data reliability and reproducibility.

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Abstract

The present application relates to experimental animal fixing device technical field, especially in a kind of multi-acupoint precision positioning rat electro-acupuncture experiment fixing device.It includes base, base top is equipped with fixed plate, and the both ends of fixed plate are equipped with vertical plate respectively, and the bottom of vertical plate is fixed on the base, and fixed plate is equipped with torso fixing assembly, and the four corners of fixed plate are equipped with four limbs fixing assembly respectively, and the both ends of fixed plate are equipped with head fixing assembly and tail fixing assembly respectively.The technical scheme provided by the present application is realized by the coordinated fixing of the head fixing assembly, torso fixing assembly, four limbs fixing assembly and tail fixing assembly, the stable restraint of rat is realized, and the reliability and repeatability of experimental data are guaranteed;Meanwhile, the layout design of each fixing assembly is reasonable, and the acupoints of rat torso, back, limbs and other parts are not blocked, and experiment personnel can quickly and accurately position multi-acupoint, so as to facilitate simultaneous multi-acupoint electro-acupuncture operation, and improve experimental efficiency.
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Description

Technical Field

[0001] This invention relates to the field of experimental animal fixation devices, and in particular to a rat electroacupuncture experimental fixation device with precise multi-acupoint positioning. Background Technology

[0002] In fields such as traditional Chinese medicine research and neuroscience research, rat electroacupuncture experiments are a commonly used research method. The core requirement is to achieve precise localization and stable fixation of acupoints on the rat's body surface, ensuring that electroacupuncture stimulation accurately targets the acupoints and thus guarantees the reliability of experimental data. However, current rat electroacupuncture fixation devices have many limitations, seriously affecting experimental results and data reliability. These limitations are mainly reflected in the following two aspects: First, traditional restraint devices do not expose enough acupoints. Most existing traditional restraint devices adopt a closed or semi-closed structure, which can only expose a few acupoints on the rat's body surface and cannot expose multiple commonly used acupoints at the same time. This leads to the need to frequently adjust the rat's body position or change the restraint device during the experiment, which not only increases the complexity of operation, but also easily causes the rat to struggle and move, further affecting the accuracy of acupoint positioning and the continuity of the experiment.

[0003] Secondly, the problem of needle drop due to insecure limb fixation is prominent. Rats have flexible limbs and struggle a lot. The existing limb fixation structure is mostly a simple trunk strap or buckle design, which has uncontrollable fixation force and poor adaptability. It cannot be flexibly adjusted according to the thickness of the rat's limbs, and the limbs are prone to loosening and breaking off, which leads to the electrocautery needle falling off or shifting, increasing experimental error, and even requiring the experiment to be repeated, which seriously affects the experimental progress and the reproducibility of data.

[0004] Therefore, developing a rat electroacupuncture fixation device that can overcome the above limitations and achieve full exposure of multiple acupoints and firm fixation of limbs has become the key to solving the defects of existing technology. Summary of the Invention

[0005] The purpose of this invention is to provide a rat electroacupuncture experiment fixation device for precise positioning of multiple acupoints. This fixation device can firmly fix the limbs of the rat and fully expose multiple acupoints of the rat.

[0006] This invention provides a rat electroacupuncture experimental fixation device for precise positioning of multiple acupoints, including a base, a fixing plate on the top of the base, upright plates at both ends of the fixing plate, the bottom of the upright plates being fixed to the base, a trunk fixation component on the fixing plate, limb fixation components at the four corners of the fixing plate, and a head fixation component and a tail fixation component at both ends of the fixing plate.

[0007] Furthermore, the upright plate includes two first upright plates and two second upright plates, the two first upright plates being located at the end of the fixed plate near the head fixing component, and the two second upright plates being located at the end of the fixed plate near the tail fixing component.

[0008] Furthermore, the head fixing assembly includes a head fixing block disposed between the two first upright plates. An arc-shaped ring is fixedly installed on the top of the head fixing block. An adjusting bolt is provided on the arc-shaped ring. A pressure plate is fixed to the bottom of the adjusting bolt. A flexible block is provided at the bottom of the pressure plate.

[0009] Furthermore, the torso fixation assembly includes at least two torso straps, each with multiple through holes at both ends along the axial direction; the base has a U-shaped frame at the top, with through slots on the two opposite sidewalls of the U-shaped frame, threaded holes at the top of the through slots, and fixing bolts in the threaded holes; The fixing plate has two symmetrical long slots running through it. The torso strap is tied to the rat's torso, and its two ends cross and pass through the long slots and the through slots respectively, and are fitted onto the fixing bolts through the through holes.

[0010] Furthermore, the torso strap has a narrow end and a wide end at its two ends, respectively. The wide end has a slotted hole on one side of the through hole, and the narrow end passes through the slotted hole so that the two ends of the torso strap cross.

[0011] Furthermore, the U-shaped frame can slide along the base, the base is provided with a sliding groove, the bottom of the U-shaped frame is fixed with a slider that slides along the sliding groove, one side wall of the base is provided with a first positioning hole communicating with the sliding groove, the side wall of the slider is provided with a second positioning hole, and a positioning bolt passes through the first positioning hole and connects to the second positioning hole.

[0012] Furthermore, the limb fixation assembly includes a mounting block, on which a fixing ring is provided.

[0013] Furthermore, the mounting block can slide along the fixing plate, the top of the fixing plate is provided with a mounting groove, and a slide rail is fixed inside the mounting groove along the axial direction. The mounting block is slidably connected to the slide rail. The mounting block is provided with a first limiting hole, and a limiting bolt is provided in the first limiting hole. The slide rail is provided with a plurality of second limiting holes, and the limiting bolt passes through the first limiting hole and connects with the second limiting holes.

[0014] Furthermore, the outer peripheral wall of the fixing ring is provided with multiple grooves.

[0015] Furthermore, the tail fixing assembly includes a tail fixing block disposed between the two second upright plates, and the tail fixing block is provided with a tail strap.

[0016] In summary, compared with the prior art, the present invention has the following advantages: The technical solution provided by this invention achieves stable restraint of rats through the coordinated fixation of multiple parts, including head fixation components, trunk fixation components, limb fixation components, and tail fixation components, ensuring the reliability and repeatability of experimental data. At the same time, the layout design of each fixation component is reasonable and will not obstruct acupoints on the rat's trunk, back, limbs, etc., allowing researchers to quickly and accurately locate multiple acupoints, facilitating simultaneous electroacupuncture operations at multiple acupoints and improving experimental efficiency. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the fixing device in Embodiment 1 of the present invention; Figure 2 This is a front view of the head fixing component in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the torso strap structure in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the limb fixation assembly in Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the connection between the U-shaped frame and the base in Embodiment 2 of the present invention; Figure 6 This is a schematic diagram of the head fixation component in Embodiment 2 of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1-Base; 101-Slide groove; 102-First positioning hole; 103-Positioning bolt; 2-Fixing plate; 201-Long groove; 202-Mounting groove; 3-First upright plate; 4-Second upright plate; 5-Head fixing block; 501-Arc-shaped ring; 502-Adjusting bolt; 503-Pressure plate; 504-Flexible block; 505-Connecting plate; 506-Fastening bolt; 507-Adjusting hole; 6-Neck 7-Tortoise strap; 701-Straight hole; 702-Through hole; 8-U-shaped frame; 801-Through groove; 802-Threaded hole; 803-Fixing bolt; 804-Slider; 9-Limb fixing assembly; 901-Mounting block; 902-Fixing ring; 9021-Groove; 903-Slide rail; 9031-Second limit hole; 904-Limit bolt; 10-Tail fixing block; 1001-Tail strap. Detailed Implementation

[0020] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] Example 1 A rat electroacupuncture experimental fixation device for precise positioning of multiple acupoints, such as... Figure 1As shown, the device includes a base 1, which is a rectangular plate structure made of rigid plastic or stainless steel to ensure the overall stability of the device and prevent shaking during the experiment. A fixing plate 2 is located above the base 1, parallel to the base 1. The fixing plate 2 is made of a lightweight but rigid material with a smooth surface to avoid scratching the rat's skin. Upright plates are located at both ends of the fixing plate 2, with their bottoms fixed to the base 1. The upright plates include two symmetrically arranged first upright plates 3 and two symmetrically arranged second upright plates 4. The two first upright plates 3 are located at the end of the fixing plate 2 near the head fixing component, and the two second upright plates 4 are located at the end of the fixing plate 2 near the tail fixing component. The fixation plate 2 is equipped with a trunk fixation component to secure the rat's trunk and prevent it from struggling. Four limb fixation components 9 are located at the four corners of the fixation plate 2 to secure the rat's limbs, ensuring that the limbs do not move and cause the needle to fall out during electroacupuncture. Head and tail fixation components are located at both ends of the fixation plate 2 to secure the rat's head and tail respectively, achieving coordinated fixation of the rat's entire body. A neck fixation component is located at the end of the fixation plate 2 closest to the head fixation component to secure the rat's neck. Details are as follows: Head fixation component: Used to fix the rat's head, restricting the rat's head rotation and shaking, preventing the rat's head from struggling and causing the acupoints on the head to shift. At the same time, it adopts a flexible contact design to reduce pressure on the rat's head, relieve stress response, and does not cover the acupoints on the head, making it convenient to perform electroacupuncture on the acupoints on the head.

[0024] The head fixation assembly includes a head fixation block 5 disposed between two first upright plates 3. The bottom of the head fixation block 5 is fixed to the top of the base 1, and an arc-shaped ring 501 is fixedly installed on the top of the head fixation block 5. The arc-shaped ring 501 is adapted to the contour of the rat's head and is used to fit against the sides of the rat's head. Figure 2 As shown, a screw hole is provided on the center line of the arc ring 501, and an adjusting bolt 502 is installed in the screw hole. The adjusting bolt 502 is threadedly connected to the arc ring 501. A pressure plate 503 is fixed to the bottom of the adjusting bolt 502. The pressure plate 503 is a square structure, an arc structure, or a circular structure. The arc structure can better fit the top contour of the rat's head. A flexible block 504 is fixed to the bottom of the pressure plate 503. The flexible block 504 is made of medical sponge and is used to contact the rat's head to reduce pressure and avoid damage to the rat's head skin and skull.

[0025] The top of the head fixing block 5 is positioned at a height lower than that of the first upright plate 3 and flush with the top of the fixing plate 2. This ensures that when the rat's head is placed on the head fixing block 5, the head and torso remain horizontal, preventing the head from tilting and causing the acupoints to shift. It also facilitates the exposure of the acupoints on the head.

[0026] In use, place the rat's head through the arc-shaped ring 501 onto the head fixing block 5, ensuring the rat's head fits snugly against the head fixing block 5. Rotate the adjusting bolt 502 to move the pressure plate 503 downwards until the flexible block 504 at the bottom of the pressure plate 503 fits against the top of the rat's head. Adjust the tightness of the adjusting bolt 502 so that the rat's head cannot rotate but is not compressed. The flexible block 504 effectively buffers pressure, preventing damage to the rat's head, while not obstructing acupoints on the head, facilitating electroacupuncture operations on acupoints by researchers.

[0027] Neck fixation component: Used to fix the rat's neck, assisting the head fixation component in fixing the rat's head, preventing the rat's head from shifting due to neck shaking, while restricting the rat's head's up and down movement, further improving the stability of head fixation, and the binding method is convenient and the tightness can be flexibly adjusted.

[0028] The neck fixation component is a neck strap 6, located at one end of the fixation plate 2 near the head fixation component. The neck strap 6 is made of flexible and breathable material, with hook and loop fasteners at both ends. The hook and loop fasteners allow for quick securing and tightness adjustment. The rat's neck is placed in the middle of the neck strap 6, and both ends are wrapped around the rat's neck. The tightness is adjusted according to the size of the rat's neck, ensuring the neck cannot move but does not compress the trachea. The hook and loop fasteners are then attached to secure the neck, assisting the head fixation component in securing the rat's head.

[0029] Trunk immobilization component: Used to immobilize the rat's trunk, restricting the rat's left and right swaying and up and down struggling, while avoiding obscuring the acupoints on the rat's trunk and back, ensuring full exposure of the electroacupuncture acupoints; the immobilization strength can be flexibly adjusted according to the rat's body size, adapting to rats of different weights and body sizes, and the binding method is gentle, reducing the rat's stress response.

[0030] The trunk immobilization assembly includes two trunk straps 7 (which can be increased to 3-4 as needed). The trunk straps 7 are made of a flexible, breathable material to avoid compressing the rat's skin and affecting blood circulation, while simultaneously improving the rat's comfort and reducing stress response. Figure 3 As shown, the torso strap 7 has multiple through holes 702 at both ends along the axial direction. The through holes 702 are used to cooperate with the fixing bolts 803 to fix the torso strap 7 and adjust its tightness; as shown Figure 1As shown, a U-shaped frame 8 is provided on the top of the base 1. The two opposite side walls of the U-shaped frame 8 are located on both sides of the fixing plate 2. The two opposite side walls of the U-shaped frame 8 are provided with through grooves 801. The through grooves 801 are rectangular grooves for the two ends of the torso strap 7 to pass through. A threaded hole 802 is provided above the through groove 801. A fixing bolt 803 is provided in the threaded hole 802. The fixing bolt 803 is used to fix the end of the torso strap 7. Two symmetrical long grooves 201 are provided through the fixing plate 2 for the torso strap 7 to pass through. The two ends of the torso strap 7 are a thin end and a wide end, respectively. The wide end has a slotted hole 701 on one side of the through hole 702. The thin end passes through the slotted hole 701 so that the two ends of the torso strap 7 cross and bind the rat's torso, improving the binding firmness and preventing loosening after binding.

[0031] In use, first take a torso strap 7 and place the middle part of the torso strap 7 on the upper surface of the rat's torso. Wrap both ends of the torso strap 7 around the lower surface of the rat's torso, and pass the thin end through the slot 701 of the wide end, so that the torso strap 7 is crisscrossed and wrapped around the rat's torso. Adjust the tightness of the strap so that the rat cannot break free but does not compress the skin or affect breathing. Then repeat the above steps to bind another position of the rat's torso (such as the chest and abdomen) with another torso strap 7. After binding the torso strap 7 to the rat's torso, place the rat on the fixing plate 2, so that the rat's torso fits against the fixing plate 2. Pass both ends of the torso strap 7 through the corresponding long slots 201 on the fixing plate 2, and then through the through slots 801 on the side wall of the U-shaped frame 8. According to the required tightness, fit the through hole 702 on the torso strap 7 onto the fixing bolt 803, and tighten the fixing bolt 803 to fix the torso strap 7, ensuring that the torso is firmly fixed and does not obstruct the acupoints.

[0032] Limb immobilization component 9: Used to immobilize the rat's limbs, restrict limb movement, and prevent the rat from struggling and causing the electrocautery needles to fall off.

[0033] like Figure 1 and Figure 4 As shown, four limb fixing components 9 are respectively set at both ends of the two diagonals of the fixing plate 2. Each limb fixing component 9 includes a mounting block 901, which is a square structure. A fixing ring 902 is fixedly installed on the mounting block 901. The fixing ring 902 is made of stainless steel. Multiple grooves 9021 are provided on the outer peripheral wall of the fixing ring 902. The grooves 9021 are used to increase the friction between the fixing ring 902 and the rope to prevent the rope from slipping.

[0034] The top of the fixing plate 2 is provided with a mounting groove 202. A slide rail 903 is fixed inside the mounting groove 202 along the axial direction. The mounting block 901 is slidably connected to the slide rail 903, so that the mounting block 901 can slide along the slide rail 903, thereby adjusting the distance between the four limb fixing components 9 to adapt to the limbs of rats of different sizes. The mounting block 901 is provided with a first limiting hole, and a limiting bolt 904 is provided in the first limiting hole. The slide rail 903 is provided with multiple second limiting holes 9031. The limiting bolt 904 passes through the first limiting hole and connects with the second limiting hole 9031 to fix the position of the mounting block 901 and prevent the mounting block 901 from sliding during the experiment.

[0035] Before fixing the rat's limbs, loosen the limiting bolt 904 according to the rat's body size, push the mounting block 901 to slide along the slide rail 903, adjust the position of the four mounting blocks 901, and after adjustment, tighten the limiting bolt 904 to fix the position of the mounting block 901; tie the rat's limbs with ropes, and then tie the other end of the rope to the fixing ring 902.

[0036] Tail fixation component: Used to fix the rat's tail, restrict tail movement, prevent the rat from struggling through its tail and shifting its body, and also help fix the rat's torso, further improving the overall stability of the fixation without damaging the rat's tail.

[0037] The tail fixing assembly includes a tail fixing block 10 disposed between two second upright plates 4. The bottom of the tail fixing block 10 is fixed to the top of the base 1. The tail fixing block 10 is provided with a tail strap 1001, which is made of flexible and breathable material and is used to bind the rat's tail. The top of the tail fixing block 10 is lower than the height of the second upright plate 4 and is flush with the top of the fixing plate 2, ensuring that when the rat's tail is placed on the tail fixing block 10, the tail and the torso remain horizontal, and preventing the tail from bending and causing the rat's body to shift.

[0038] When using, place the rat's tail on the tail fixing block 10, and wrap the tail strap 1001 around the base of the rat's tail (avoid wrapping too tightly and compressing blood vessels). Adjust the tightness of the tail strap 1001 so that the rat's tail cannot break free but does not affect blood circulation, thereby fixing the tail and helping to improve the overall stability of the rat.

[0039] Multiple tail straps 1001 can be set along the length of the tail fixing block 10. When in use, the tail straps 1001 at appropriate positions can be selected to bind the rat's tail according to the rat's body size or operation needs.

[0040] The usage procedure of the fixing device provided in this embodiment is as follows: S1. Device adjustment: Adjust the position of the mounting blocks 901 of the four limb fixation components 9 according to the size of the rats used in the experiment, and fix the mounting blocks 901. S2. Rat placement: First, wrap the rat's torso with two torso straps 7 in a crisscross pattern. Then, place the rat on the fixing plate 2, with the rat's head corresponding to the head fixing block 5, the neck corresponding to the neck strap 6, the torso placed between the two long slots 201, the limbs corresponding to the limb fixing components 9, and the tail corresponding to the tail fixing block 10. Then, pass the ends of the two torso straps 7 through the long slots 201 and the through slots 801, and fix them with fixing bolts 803, adjusting the tightness. S3. Head fixation: Rotate the adjusting bolt 502 of the head fixation assembly to make the flexible block 504 of the pressure plate 503 fit against the rat's head and fix the head; S4. Neck fixation: Wrap the rat's neck with a neck strap 6 and fix it with Velcro, adjusting the tightness; S5. Limb fixation: Fix the rat's limbs with ropes, and then tie the other end of the rope to the fixation ring 902; S6. Tail fixation: Wrap the rat's tail base with a tail strap 1001, adjust the tightness, and complete the overall fixation of the rat; S7. Experimental procedure: After fixation, the experimenter can perform electroacupuncture on multiple acupoints on the head, trunk, limbs and other parts of the rat. After the experiment, the fixation components are released in sequence and the rat is removed.

[0041] Example 2 A rat electroacupuncture experimental fixation device for precise positioning of multiple acupoints. The contents of this embodiment are basically the same as those of embodiment 1, except that: (1) In this embodiment, the U-shaped frame 8 is slidably connected to the top of the base 1. The position of the trunk strap 7 can be adjusted according to the trunk length of rats of different body sizes or the trunk position to be exposed in the experiment, so as to adapt to rats of different body lengths and further improve the flexibility of acupoint exposure; (2) The position of the arc ring 501 on the head fixation block 5 in this embodiment is adjustable, and can be adjusted according to the rat head shape.

[0042] like Figure 5 As shown, the base 1 is provided with a sliding groove 101, which is set along the length of the base 1. The bottom of the U-shaped frame 8 is fixed with a slider 804 that slides along the sliding groove 101. The slider 804 is adapted to the sliding groove 101 to ensure that the U-shaped frame 8 slides smoothly. One side wall of the base 1 is provided with a first positioning hole 102 that communicates with the sliding groove 101. The side wall of the slider 804 is provided with a second positioning hole. The positioning bolt 103 passes through the first positioning hole 102 and connects to the second positioning hole to fix the position of the U-shaped frame 8 and prevent the U-shaped frame 8 from sliding during the experiment.

[0043] like Figure 6As shown, the bottom of the head fixing block 5 is fixed to the top of the base 1. Connecting plates 505 are fixed to both ends of the arc ring 501. The connecting plates 505 are provided with threaded holes, and fastening bolts 506 are fitted into the threaded holes. The top of the head fixing block 5 is provided with two rows of adjustment holes 507 along the length direction. Multiple adjustment holes 507 are arranged at intervals along the length direction in each row. The fastening bolts 506 are detachably connected to the adjustment holes 507 to realize the adjustment and fixation of the position of the arc ring 501, thereby adapting to rats with different head shapes.

[0044] The rat electroacupuncture test fixation device provided by this invention has the following advantages: I. Solving the problem of insufficient acupoint exposure in traditional restraint devices, achieving precise exposure of multiple acupoints: Traditional devices are mostly closed or semi-closed structures, with limited exposure of acupoints, requiring frequent adjustments to the rat's position and affecting positioning accuracy. This invention adopts an open fixing plate design, with each fixing component avoiding commonly used acupoints. Furthermore, the U-shaped frame and limb fixing components are adjustable and can be slidably adjusted, allowing for flexible adjustment of the rat's position. This enables simultaneous exposure of multiple acupoints on the head, trunk, limbs, and tail, improving operational convenience and positioning accuracy, and increasing experimental efficiency.

[0045] II. Solving the problem of needle drop due to insecure limb fixation and achieving secure limb positioning: Existing devices have simple limb fixation structures, uncontrollable force, poor adaptability, and are prone to needle detachment and large experimental errors. In this invention, the limb fixation components have adjustable spacing to adapt to rats of different sizes; the fixing ring with grooves prevents strap slippage, the limiting bolts fix the position, and the strap tightness is adjustable, fundamentally solving the needle drop problem, ensuring accurate needle application, reducing errors, and improving data repeatability.

[0046] Third, this invention addresses the problem of poor stress response control and reduces stress in rat experiments: Existing devices involve rigid contact and uncontrollable force, easily triggering strong stress responses in rats and affecting experimental data. This invention uses flexible, breathable materials, with independent adjustment of the tightness of each component. The head and tail fixing blocks are flush with the fixing plate to ensure comfortable positioning, significantly reducing stress responses in rats, ensuring their physiological stability, and guaranteeing the scientific validity of the data.

[0047] In summary, the rat electroacupuncture experiment fixation device of this invention achieves stable fixation of rats through the coordinated operation of multiple components, fully exposes acupoints at various locations, effectively solves the limitations of existing devices such as acupoint obstruction and needle drop, is adaptable to rats of different sizes, is easy to operate, and can significantly improve the accuracy and efficiency of rat electroacupuncture experiments, providing a reliable auxiliary device for experimental research in related fields.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rat electroacupuncture experimental fixation device for precise positioning of multiple acupoints, characterized in that, Includes a base (1), a fixing plate (2) is provided on the top of the base (1), a standing plate is provided at both ends of the fixing plate (2), the bottom of the standing plate is fixed on the base (1), a torso fixing component is provided on the fixing plate (2), a limb fixing component (9) is provided at the four corners of the fixing plate (2), and a head fixing component and a tail fixing component are provided at both ends of the fixing plate (2).

2. The rat electroacupuncture test fixation device according to claim 1, characterized in that, The upright plate includes two first upright plates (3) and two second upright plates (4), the two first upright plates (3) being located at the end of the fixing plate (2) near the head fixing component, and the two second upright plates (4) being located at the end of the fixing plate (2) near the tail fixing component.

3. The rat electroacupuncture test fixation device according to claim 2, characterized in that, The head fixing assembly includes a head fixing block (5) disposed between the two first upright plates (3). An arc-shaped ring (501) is fixedly installed on the top of the head fixing block (5). An adjusting bolt (502) is provided on the arc-shaped ring (501). A pressure plate (503) is fixed to the bottom of the adjusting bolt (502). A flexible block (504) is provided at the bottom of the pressure plate (503).

4. The rat electroacupuncture test fixation device according to claim 1, characterized in that, The torso fixation assembly includes at least two torso straps (7), and each end of the torso straps (7) has a plurality of through holes (702) along the axial direction; the base (1) has a U-shaped frame (8) on the top, and the two opposite side walls of the U-shaped frame (8) have through grooves (801) respectively, and the upper part of the through grooves (801) has a threaded hole (802), and a fixing bolt (803) is provided in the threaded hole (802); The fixing plate (2) has two symmetrical long slots (201) running through it. The torso strap (7) is tied to the rat's torso. Its two ends cross and pass through the long slot (201) and the through slot (801) respectively, and are fitted onto the fixing bolt (803) through the through hole (702).

5. The rat electroacupuncture test fixation device according to claim 4, characterized in that, The torso strap (7) has a thin end and a wide end at its two ends. The wide end has a hole (701) on one side of the through hole (702). The thin end passes through the hole (701) so that the two ends of the torso strap (7) cross.

6. The rat electroacupuncture test fixation device according to claim 4, characterized in that, The U-shaped frame (8) can slide along the base (1). The base (1) is provided with a sliding groove (101). The bottom of the U-shaped frame (8) is fixed with a slider (804) that slides along the sliding groove (101). One side wall of the base (1) is provided with a first positioning hole (102) that communicates with the sliding groove (101). The side wall of the slider (804) is provided with a second positioning hole. The positioning bolt (103) passes through the first positioning hole (102) and connects to the second positioning hole.

7. The rat electroacupuncture test fixation device according to claim 1, characterized in that, The limb fixation assembly (9) includes a mounting block (901) and a fixing ring (902) is provided on the mounting block (901).

8. The rat electroacupuncture test fixation device according to claim 7, characterized in that, The mounting block (901) can slide along the fixing plate (2). The top of the fixing plate (2) is provided with a mounting groove (202). A slide rail (903) is fixed inside the mounting groove (202) along the axial direction. The mounting block (901) is slidably connected to the slide rail (903). The mounting block (901) is provided with a first limiting hole. A limiting bolt (904) is provided in the first limiting hole. The slide rail (903) is provided with a plurality of second limiting holes (9031). The limiting bolt (904) passes through the first limiting hole and connects to the second limiting hole (9031).

9. The rat electroacupuncture test fixation device according to claim 8, characterized in that, The outer peripheral wall of the fixing ring (902) is provided with multiple grooves (9021).

10. The rat electroacupuncture test fixation device according to claim 2, characterized in that, The tail fixing assembly includes a tail fixing block (10) disposed between two second upright plates (4), and the tail fixing block (10) is provided with a tail strap (1001).