An experimental animal fixing device
By combining a magnetic fixation device with an adjustable fixation strap, the problem of inconvenient operation of existing experimental animal fixation devices is solved, achieving stable and convenient animal fixation, adapting to different body size requirements, and improving experimental efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO KONOSAI BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-04-08
- Publication Date
- 2026-06-05
Smart Images

Figure CN224320782U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of experimental auxiliary devices, specifically an experimental animal restraint device. Background Technology
[0002] Animal experiments are scientific research conducted using animals as research subjects. They are widely used in fields such as medicine, biology, and psychology, primarily to explore disease mechanisms, assess drug safety and efficacy, and study behavioral characteristics. These experiments must strictly adhere to ethical guidelines such as the "3R principle" (reduce, replace, optimize). Appropriate animal models (such as rodents, rabbits, and non-human primates) must be selected based on the research objectives, and the experiments must be conducted in standardized experimental environments, including standardized husbandry and management, necessary anesthesia and analgesia measures, and the setting of humane endpoints. Common types of experiments include toxicity testing, surgery, gene modification, and behavioral observation. To ensure the reliability of experimental data, standardized operating procedures must be established, and experimental conditions must be strictly controlled. Animal experiments play an important role in promoting the development of human medicine, but the scientific research value and animal ethical responsibility must be carefully weighed.
[0003] In animal experiments, to ensure operational safety and experimental accuracy, it is necessary to properly fix the experimental animals. Commonly used fixation devices include: universal fixation tubes, head positioning systems (such as stereotaxic instruments), limb fixation devices, and special body position fixation equipment. However, existing fixation techniques still have certain limitations, especially when it is necessary to completely fix the animal on a flat operating table, which often leads to technical problems such as inconvenience in operation and unsatisfactory fixation results. Utility Model Content
[0004] The purpose of this invention is to provide a device for fixing laboratory animals to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an experimental animal fixation device, comprising a workbench body, a metal placement plate fixedly connected to the workbench body, a first mounting shell and a second mounting shell respectively placed on the metal placement plate, an electromagnet adsorption assembly fixedly installed on the lower end face of the first mounting shell and the lower end face of the second mounting shell, a first box body fixedly connected to the upper end face of the first mounting shell, a fixing strap provided inside the first box body, a hanging cylinder fixedly connected to one end of the fixing strap, a hanging rod adapted to the hanging cylinder fixedly connected to the second mounting shell, and a retractable component for adjusting the length of the fixing strap provided inside the first box body.
[0006] The first mounting shell has a channel that communicates with the first box body, and the fixing strap is disposed inside the channel.
[0007] The receiving and releasing component includes a rotating roller rotatably connected inside the first box body, and the other end of the fixing belt is wound and connected to the rotating roller.
[0008] The first box body has a micro drive motor fixedly connected inside, and the output end of the micro drive motor is fixedly connected to the rotating roller.
[0009] The second mounting shell has a second housing fixedly connected to its upper end face, and a storage battery is fixedly connected inside the second housing.
[0010] Control buttons are provided on the upper surface of the first box and the upper surface of the second box, and handles are fixedly connected to the upper surface of the first box and the upper surface of the second box.
[0011] The lower end face of the workbench body is fixedly connected to a housing, and a set of support frames is fixedly connected to the lower end face of the workbench body.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention utilizes a metal placement plate on the main body of the workbench, along with electromagnets at the bottom of the first and second mounting shells, to form a magnetic fixation device. Electromagnetic control enables rapid positioning and release of the shells, ensuring both stability and operational efficiency. When fixing animals, an adjustable fixing strap within the first housing, combined with a hanging cylinder and rod, forms a restraint device. A rotating roller driven by a micro-drive motor allows for flexible adjustment of the fixing strap length, accommodating the fixation needs of experimental animals of different sizes. This device offers the following advantages: the magnetic fixation method has a long service life and is more convenient and faster; the electrically adjustable fixing strap length makes operation more precise and convenient; the overall structure is stable and reliable, effectively preventing animals from escaping and avoiding unnecessary harm; and the battery design enhances the device's portability, allowing it to be used in various experimental environments. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of a laboratory animal restraint device according to the present invention;
[0015] Figure 2 This is a three-dimensional structural diagram of the fixation strap in a laboratory animal fixation device according to the present invention;
[0016] Figure 3 This is a three-dimensional structural diagram of the first mounting shell in a laboratory animal fixation device according to the present invention.
[0017] Figure 4 This is a three-dimensional structural diagram of the second mounting shell in a laboratory animal fixation device according to the present invention;
[0018] Figure 5 This is a three-dimensional structural diagram of the first box in a laboratory animal fixation device of this utility model;
[0019] Figure 6 This is a three-dimensional structural diagram of the second box in an experimental animal fixation device according to the present invention.
[0020] In the diagram: 1. Main body of the workbench; 2. Metal placement plate; 3. First mounting shell; 4. Second mounting shell; 5. Electromagnetic adsorption assembly; 6. First box; 7. Second box; 8. Fixing strap; 9. Rotary roller; 10. Micro drive motor; 11. Hanging cylinder; 12. Hanging rod; 13. Channel; 14. Battery; 15. Control button; 16. Handle; 17. Placement shell; 18. Support frame. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-6 This utility model provides a technical solution: an experimental animal fixation device, including a workbench body 1, a placement shell 17 fixedly connected to the lower end face of the workbench body 1, and a set of support frames 18 fixedly connected to the lower end face of the workbench body 1. The workbench body 1 is an experimental operation platform that can support the entire fixation device and experimental animals. The placement shell 17 is used to store experimental tools or accessories. The support frames 18 support the workbench body 1 and can keep the device stable.
[0023] A metal placement plate 2 is fixedly connected to the main body 1 of the workbench. A first mounting shell 3 and a second mounting shell 4 are placed on the metal placement plate 2. Electromagnetic adsorption components 5 are fixedly installed on the lower end face of the first mounting shell 3 and the lower end face of the second mounting shell 4. When the electromagnet adsorption components 5 are energized, they can be adsorbed on the metal placement plate 2 to fix their position. A first box body 6 is fixedly connected to the upper end face of the first mounting shell 3. A fixing strap 8 is provided inside the first box body 6. A hanging cylinder 11 is fixedly connected to one end of the fixing strap 8. The first mounting shell 3 has a channel 13 that communicates with the first box body 6. The fixing strap 8 is located inside the channel 13. A hanging rod 12 that is compatible with the hanging cylinder 11 is fixedly connected to the second mounting shell 4. The hanging rod 12 and the hanging cylinder 11 cooperate to lock the fixing strap 8.
[0024] The first housing 6 has a winding and unwinding component for adjusting the length of the fixing strap 8. The winding and unwinding component includes a rotating roller 9 rotatably connected inside the first housing 6. The other end of the fixing strap 8 is wound and connected to the rotating roller 9. A micro drive motor 10 is fixedly connected inside the first housing 6. The output end of the micro drive motor 10 is fixedly connected to the rotating roller 9. The rotating roller 9 is connected to the micro drive motor 10, and its rotation can wind and unwind the fixing strap 8.
[0025] The upper surface of the second mounting shell 4 is fixedly connected to the second housing 7, and the inside of the second housing 7 is fixedly connected to the battery 14, which can provide power to the electromagnet adsorption component 5 and the micro drive motor 10. The upper surface of the first housing 6 and the upper surface of the second housing 7 are both provided with control buttons 15, which can control the on / off state of the electromagnet adsorption component 5 and the start / stop of the micro drive motor 10. The upper surface of the first housing 6 and the upper surface of the second housing 7 are both fixedly connected to the handles 16.
[0026] Specifically, the first mounting shell 3 has a built-in fastening strap 8 retraction component, which can be attached to the metal placement plate 2 by an electromagnet adsorption assembly 5. The second mounting shell 4 is used in conjunction with the first mounting shell 3, has a built-in battery 14, is fixed by an electromagnet adsorption assembly 5, and is provided with a hanging rod 12 to cooperate with the fastening strap 8.
[0027] Working principle: When working, first place the device stably in the use position. The support frame 18 ensures the horizontal stability of the main body 1 of the workbench. The experimenter can easily move the first mounting shell 3 and the second mounting shell 4 to the predetermined position through the handle 16. After the experimental animal is safely placed in the working area of the metal placement plate 2, when performing the fixation operation, the micro drive motor 10 is started by the control button 15, which drives the rotating roller 9 to rotate, thereby driving the fixation strap 8 to extend and retract through the channel 13, realizing flexible adjustment of the restraint length. When the length of the fixation strap 8 is adjusted to the optimal position, it can be fastened and locked by the hanging cylinder 11 and the hanging rod 12. At the same time, the electromagnet adsorption component 5 is energized to generate a strong magnetic adsorption force, which can firmly fix the first mounting shell 3 and the second mounting shell 4 on the metal placement plate 2, thereby fixing the experimental animal.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A laboratory animal restraint device, comprising a workbench body (1), characterized in that: A metal placement plate (2) is fixedly connected to the main body (1) of the workbench. A first mounting shell (3) and a second mounting shell (4) are respectively placed on the metal placement plate (2). Electromagnetic adsorption components (5) are fixedly installed on the lower end face of the first mounting shell (3) and the lower end face of the second mounting shell (4). A first box body (6) is fixedly connected to the upper end face of the first mounting shell (3). A fixing strap (8) is provided inside the first box body (6). A hanging cylinder (11) is fixedly connected to one end of the fixing strap (8). A hanging rod (12) adapted to the hanging cylinder (11) is fixedly connected to the second mounting shell (4). A retraction component for adjusting the length of the fixing strap (8) is provided inside the first box body (6).
2. The experimental animal restraint device according to claim 1, characterized in that: The first mounting shell (3) has a channel (13) that communicates with the first box body (6), and the fixing strap (8) is set inside the channel (13).
3. The experimental animal restraint device according to claim 2, characterized in that: The take-up and take-down component includes a rotating roller (9) rotatably connected inside the first box body (6), and the other end of the fixing belt (8) is wound around the rotating roller (9).
4. The experimental animal restraint device according to claim 3, characterized in that: A micro drive motor (10) is fixedly connected inside the first box (6), and the output end of the micro drive motor (10) is fixedly connected to the rotating roller (9).
5. The experimental animal restraint device according to claim 1, characterized in that: The upper end face of the second mounting shell (4) is fixedly connected to the second box body (7), and the inside of the second box body (7) is fixedly connected to the battery (14).
6. The experimental animal restraint device according to claim 5, characterized in that: Control buttons (15) are provided on the upper end face of the first box (6) and the upper end face of the second box (7), and handles (16) are fixedly connected to the upper end face of the first box (6) and the upper end face of the second box (7).
7. The experimental animal restraint device according to claim 1, characterized in that: The lower end face of the workbench body (1) is fixedly connected to a housing (17), and a set of support frames (18) is fixedly connected to the lower end face of the workbench body (1).