A mouse and rat restraining device
By designing a combination of a base, a magnetic restraint block, and a malleable hook, the problems of universality and adjustability of existing rat and mouse restraint devices were solved, achieving stable fixation and flexible adjustment of rats and mice, thus improving experimental efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 马陈辉
- Filing Date
- 2025-04-04
- Publication Date
- 2026-07-24
Smart Images

Figure CN224540369U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a restraint device for immobilizing rats and mice in animal experiments. Background Technology
[0002] In animal experiments, surgical modeling of mice and rats is often required, and stable and reliable immobilization is crucial for successful experiments. Traditional mouse and rat restraint devices have several drawbacks: First, restraint devices for rats and mice are not interchangeable, requiring two sets of devices for both. Second, the immobilization method is relatively simple, and the body position is not adjustable. Third, the immobilization method usually uses ropes or rubber bands, which require knotting after each use, resulting in time-consuming and inconvenient procedures. Fourth, the direction and force of the surgical retractor are not adjustable, which is insufficient for the needs of animal experiments. In conclusion, there is an urgent need for a reasonably designed, easy-to-operate, effective, and adjustable mouse and rat restraint device to meet the growing demands of the animal experiment field. Utility Model Content
[0003] The purpose of this invention is to provide a restraint device for mice and rats, solving the problems of inconvenient operation, unstable fixation, and poor applicability of existing restraint methods. It enables convenient and quick secure restraint of mice and rats, and can be adjusted arbitrarily to meet different positioning requirements. The direction and force of the malleable retractor can also be adjusted to meet different surgical field requirements, greatly improving experimental efficiency and accuracy.
[0004] This utility model is a restraint device for mice and rats, characterized in that: it is mainly composed of three parts: a base, a magnetic restraint block (2), and a malleable hook (7). The base (1) is a rectangular stainless steel metal plate with ferromagnetism; the upper part of the magnetic restraint block (2) is a neodymium magnet (4) with two fixing holes (3), and the lower part is a silicone block (5) with a groove (6) in the middle. The neodymium magnet (4) and the silicone block (5) are connected by strong glue; the head of the malleable hook (7) is a galvanized iron wire (8), and the tail is a metal covering sleeve (9). The metal covering sleeve (9) firmly covers the end of the galvanized iron wire (8), and the metal covering sleeve (9) can be inserted into the fixing hole (3) on the magnetic restraint block (2). The magnetic restraint block (2) can move freely on the base (1) to restrain mice and rats in different positions. The direction and force of the pulling force can be adjusted by adjusting the position of the magnetic restraint block (2) on the base (1) and changing the shape of the malleable hook (7). Beneficial effects
[0005] Easy to operate: Experimenters can quickly fix and adjust the position of mice and rats, which is more convenient than fixing them with ropes and rubber bands.
[0006] Fixed and stable: The magnetic restraint block (2) uses a neodymium magnet with super strong magnetic properties, which is firmly attracted and cannot be broken by mice and rats.
[0007] Highly adaptable: This device can fix rats and mice in different positions. By adjusting the position of the magnetic restraint block (2) on the base (1) and the shape of the malleable hook (7), the direction and force of the pulling force can be adjusted.
[0008] Safe and reliable: Most of the device components are made of metal, which is not easily damaged. All components can be disinfected with alcohol. Except for the magnetic restraint block (2), the base (1) and the malleable hook (7) can be sterilized at high temperature. The silicone block (5) is relatively soft and has a groove (6) that fits the fixed part, so it will not cause damage to the animal. Attached Figure Description
[0009] Figure 1 The schematic diagram of the overall structure of this utility model shows the three parts: base (1), magnetic retaining block (2), and malleable hook (7).
[0010] Figure 2 The specific method of using this utility model is demonstrated.
[0011] Figure 3 The method of using the malleable hook (7) and magnetic retaining block (2) of this utility model is demonstrated.
[0012] 1-Base, 2-Magnetic retaining block, 3-Fixing hole, 4-Neodymium magnet, 5-Silicone block, 6-Groove, 7-Moldable hook, 8-Galvanized iron wire, 9-Metal covering sleeve. Detailed Implementation
[0013] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the present invention.
[0014] Place the present invention on a stable experimental table and check whether all parts are complete. Select a magnetic restraint block (2) for rats or mice according to experimental requirements. When restraining rats, the magnetic restraint block (2) for mice can be used as an auxiliary fixation and for fixing the malleable hook (7). Similarly, when restraining mice, the magnetic restraint block (2) for rats can be used as an auxiliary fixation and for fixing the malleable hook (7).
[0015] like Figure 2As shown, anesthetized rats or mice are placed on the base (1) and positioned in a suitable position according to the surgical needs, such as supine. The magnetic restraint block (2) is used to fix the animal's limbs and can be moved freely on the base (1). Different positions can be achieved by adjusting the position. The metal sheath (9) at the tail of the malleable hook (7) can be inserted into the fixing hole (3) of the magnetic restraint block (2). The galvanized iron wire (8) on the head can be shaped to hook the edge of the surgical incision. The direction and force of the pull of the malleable hook (7) can be adjusted by moving the magnetic restraint block (2) on the base (1). The pull decreases when it is close to the animal and increases when it is far away from the animal.
[0016] like Figure 3 As shown, by the cooperation of the magnetic restraint block (2) and the malleable hook (7), the shape of the galvanized iron wire (8) at the head of the malleable hook (7) can be changed to adjust the direction and force of the pulling force, so as to achieve the purpose of effectively exposing the surgical incision of the animal.
[0017] After the animal is restrained, the target surgery can be performed. During the surgery, the restraint position and the direction and force of the pull of the malleable hook (7) can be adjusted at any time. After the experiment, the malleable hook (7) and the magnetic restraint block (2) can be removed. Finally, the restraint device should be cleaned and properly stored for future use.
[0018] This utility model is not limited to the specific embodiments described above. Those skilled in the art to which this utility model pertains may make various modifications, additions, or similar substitutions to the described specific embodiments, provided that such modifications or additions do not depart from the spirit of this utility model or exceed the scope defined by the appended claims, all of which are within the scope of protection claimed by this utility model.
Claims
1. A restraint device for rats and mice, characterized in that: It is mainly composed of three parts: base (1), magnetic retaining block (2), and malleable hook (7). The base (1) is a rectangular stainless steel metal plate with ferromagnetism. The upper part of the magnetic retaining block (2) is a neodymium magnet (4) with two fixing holes (3), and the lower part is a silicone block (5) with a groove (6) in the middle. The neodymium magnet (4) and the silicone block (5) are connected by strong glue. The head of the malleable hook (7) is a galvanized iron wire (8), and the tail is a metal wrapping sleeve (9). The metal wrapping sleeve (9) firmly covers the end of the galvanized iron wire (8), and the metal wrapping sleeve (9) can be inserted into the fixing hole (3) on the magnetic retaining block (2).
2. The rat and mouse restraint device according to claim 1, characterized in that: The base (1) is a rectangular stainless steel plate with ferromagnetism.
3. The rat and mouse restraint device according to claim 1, characterized in that: The magnetic holding block (2) is made up of a cuboid neodymium magnet (4) in the upper part and a cuboid silicone block (5) in the lower part, which are bonded together with strong adhesive.
4. The rat and mouse restraint device according to claim 1, characterized in that: The upper part of the magnetic holding block (2) has a cuboid neodymium magnet (4) with two through fixing holes (3).
5. The rat and mouse restraint device according to claim 1, characterized in that: The silicone block (5) at the bottom of the magnetic holding block (2) has a groove (6) in the middle.
6. The rat and mouse restraint device according to claim 1, characterized in that: A metal sheath (9) covers the end of a galvanized iron wire (8).
7. The rat and mouse restraint device according to claim 1, characterized in that: The metal sleeve (9) at the tail of the malleable hook (7) can be inserted into the fixing hole (3) on the magnetic retaining block (2). The metal sleeve (9) is made of ferromagnetic stainless steel.