Mouse fixer

Abstract

The utility model discloses a mouse fixing device, relates to the technical field of animal experiments, and aims to solve the problem that when an existing mouse fixing device is used for fixing a mouse, single-person operation is difficult. The device comprises a bottom supporting unit, a rod connecting assembly, a flexible net-shaped piece and a linear fixing piece. The bottom supporting unit comprises a front end fixing part, a rear end fixing part and a tail fixing part. The front end fixing part comprises a first base and two first side plates, the two first side plates are arranged on the two sides of the first base in parallel, and the section, perpendicular to the axial direction of the front end fixing part, of the front end fixing part is in a U shape. According to the mouse fixator, repeated fixing of a test mouse can be conveniently achieved, the comfort level and the success probability of working of workers are improved, and the mouse fixator has high application value and good application prospects. The mouse fixing device is ingenious in conception, reasonable in design, simple in structure and convenient to use, and has important significance for simplifying mouse fixing operation and improving operation efficiency.

Description

Technical Field

[0001] The utility model relates to the biological field, in particular to the technical field of animal experiments, and specifically is a mouse fixer. Background Art

[0002] In animal experiments, mouse tail operations mainly include tail vein injection and tail vein blood sampling, which are mainly used for drug screening, pharmacokinetic experiments, etc. When operating on the mouse tail, the mouse needs to be fixed. Taking the mouse tail vein injection as an example, the operation process is as follows: 1. Place the mouse in a fixator to fully expose the tail; 2. Spray an antibacterial agent on the mouse tail; 3. Straighten the mouse tail so that the veins on both sides of the tail are clearly visible; 4. Insert the needle as far as possible into the lateral vein of the tail; 5. Inject the drug slowly and evenly; 6. Carefully remove the needle and press gently with gauze to stop bleeding; 7. Take the mouse out of the fixator and put it back in the cage for breeding.

[0003] Most traditional mouse fixators use a cylindrical structure with one end closed but breathable and the other end open. The opening is used to apply pressure to the mouse's head or abdomen to achieve fixation. In actual use, the aforementioned fixator can achieve the desired purpose, but it faces the problems of long operation time and difficulty in single-person operation. At the same time, when the aforementioned fixator is used for repeated operations, there are also problems with the mouse's unwillingness to drill in and poor compliance, which affects the tail operation and the progress of the experiment. Furthermore, the existing mouse fixator cannot be adjusted in size according to the mouse's body shape, and its adaptive function and practicality are limited.

[0004] For this purpose, people have also conducted corresponding research. For example, Chinese patent application CN111134890A discloses a simple and practical multifunctional mouse fixing device, which includes a supporting base plate and two fixing mechanisms installed on the base plate for fixing the head and hip of the mouse; the cross section of the base plate is door frame-shaped, and the fixing mechanism is capable of moving laterally on the base plate; the positioning mechanism includes a supporting plate with a door frame-shaped cross section, a connecting plate, a threaded rod and a dovetail fixing clamp; the supporting plate is slidably installed on the upper surface of the base plate; the connecting plate is located on the inner side of the supporting plate and is slidably connected to the supporting plate; one end of the threaded rod longitudinally penetrates the middle position of the upper surface of the supporting plate and is rotatably connected to the connecting plate, and the middle position of the upper surface of the supporting plate has a screw hole adapted to the threaded rod.

[0005] Chinese patent application CN216652547U discloses a mouse tail vein injection fixture, which includes a base, a self-adjusting support installed on one side of the top surface of the base, and an auxiliary plate connected to the top of the self-adjusting support, a main limiting sleeve fixedly connected to the middle of the top surface of the auxiliary plate, the inner walls of both sides of the main limiting sleeve and one side are respectively sleeved with secondary constraint components and openings, and a clearance groove is opened inside one side of the auxiliary plate. In this structure, the auxiliary plate, the main limiting sleeve, the opening, and the secondary constraint components can form a double constraint mechanism, which first performs preliminary constraint on the whole body of the experimental mouse, and then specifically constrains the neck and the back of the limbs of the experimental mouse again, thereby fully ensuring the restraint of the mouse's activities and avoiding interference with the injection operation.

[0006] How to optimize the structure of the mouse fixator and simplify the fixation operation has become an urgent problem that needs to be solved. Utility Model Content

[0007] The invention purpose of the utility model is to provide a mouse fixer to solve the problem that it is difficult for a single person to operate the existing mouse fixer to fix the mouse.

[0008] In order to achieve the above purpose, this application adopts the following technical solutions:

[0009] A mouse fixer comprises a bottom support unit, a rod connection component, and a flexible mesh member;

[0010] The bottom support unit includes a front fixing portion, a rear fixing portion, and a tail fixing portion;

[0011] The front end fixing part comprises a first base and a first side plate, the first side plates are two and the two first side plates are arranged parallel to each other on both sides of the first base, and the front end fixing part is in a U-shaped section along a plane perpendicular to its axial direction;

[0012] The opening of the front fixing portion is recorded as a first opening, and the surface of the first base facing the first opening is recorded as a first connecting surface;

[0013] The rod connection assembly is composed of a plurality of first connection rods, the first connection rods are located in the first opening, both ends of the first connection rods are respectively connected to the first side plate, and there is a first gap between the first connection rods and the first connection surface;

[0014] The tail fixing part comprises a third groove fixing seat and a third side plate, wherein the third side plates are two and the two third side plates are arranged in parallel on both sides of the third groove fixing seat, and the tail fixing part is in a U-shaped section along a section perpendicular to its axial direction;

[0015] The opening of the tail fixing portion is recorded as the third opening, and the surface of the third groove fixing seat facing the third opening is recorded as the third connecting surface, and the third limiting groove for limiting the mouse tail is provided on the third connecting surface of the third groove fixing seat;

[0016] The rear end fixing portion includes a second side plate, and the second side plates are two and the two second side plates are arranged parallel to each other;

[0017] One end of the second side plate is connected to the first side plate, and the other end of the second side plate is connected to the third side plate;

[0018] The first opening and the third opening are respectively located on the same side of the bottom support unit, and the side of the second side plate close to the first opening is recorded as the second arc-shaped edge;

[0019] Along the direction from the tail fixing portion to the front fixing portion, the distance between the second arc-shaped edge and the first connecting surface gradually decreases; a second arc-shaped groove for fixing the mouse by gravity is formed between the second arc-shaped edges of the two second side plates, the front fixing portion and the tail fixing portion;

[0020] The flexible mesh member is provided with a plurality of holes, the flexible mesh member is connected to the bottom support unit and the bottom support unit can provide support for the flexible mesh member, and the flexible mesh member is located on the second arc-shaped groove.

[0021] The first connecting rod is a stainless steel thin column.

[0022] The diameter of the first connecting rod is 1-3 mm. Preferably, the diameter of the first connecting rod is 2 mm.

[0023] The distance between the two first side plates is 45-65 mm.

[0024] Preferably, the distance between the two first side plates is 50 mm.

[0025] The first base and the first side plate are respectively rectangular cubes;

[0026] The first gap is 1-20 mm.

[0027] The third limiting groove is arranged along the axial direction of the third groove fixing seat.

[0028] The third limiting groove has a concave depth of 2-20 mm and a width of 3-8 mm.

[0029] Preferably, the third limiting groove has a concave depth of 5 mm and a width of 5 mm.

[0030] The second arc-shaped groove is in an arc shape along a cross section perpendicular to the axial direction thereof.

[0031] The second arc-shaped groove is in an arc shape along a cross section perpendicular to its axial direction, and a central angle of the second arc-shaped groove is 60°-120°.

[0032] The flexible mesh member is fixed on the rear end fixing portion.

[0033] The flexible mesh piece is a nylon mesh bag, and the diameter of the holes on the flexible mesh piece is 5-20 mm.

[0034] The diameter of the holes on the flexible mesh is 10 mm.

[0035] The third side panel is a rectangular cube;

[0036] A concave second arc-shaped groove is formed between the side edge of the third side plate facing the first side plate, the side edge of the third groove fixing seat facing the first side plate, the central arc surface, and the second arc edge.

[0037] The rear end fixing portion further includes a second base, and a side of the second base close to the first opening is recorded as a central arc surface;

[0038] Along the direction from the tail fixing part to the front fixing part, the distance between the central arc surface and the first connecting surface gradually decreases; a second arc-shaped groove for fixing the mouse by gravity is formed between the second arc edges of the two second side panels, the central arc surface, the front fixing part and the tail fixing part.

[0039] The front end fixing part, the rear end fixing part and the tail fixing part are integrally formed.

[0040] The front end fixing part, the rear end fixing part, the tail fixing part and the rod connection assembly are integrally formed.

[0041] The invention also comprises a linear fixing part, which is connected to the bottom supporting unit and can fix the mouse.

[0042] The linear fixing element comprises a fifth hook and loop fastener, a hook surface of the hook and loop fastener, and a fleece surface of the hook and loop fastener;

[0043] One end of the fifth hook and loop fastener is connected to one side of the bottom support unit, and the fur surface of the hook and loop fastener is connected to the other side of the bottom support unit;

[0044] The hook surface of the Velcro is arranged on the fifth Velcro, and the hook surface of the Velcro can be fitted together with the hairy surface of the Velcro, and the needs of fixing the bodies of mice of different sizes can be met by adjusting the relative positions of the hook surface of the Velcro and the hairy surface of the Velcro.

[0045] One end of the fifth hook and loop fastener is connected to the outer side of one second side panel, and the rough surface of the hook and loop fastener is connected to the outer side of another second side panel.

[0046] In response to the aforementioned problems, the present application provides a mouse fixator, which includes a bottom support unit, a rod connection assembly, a flexible mesh member, and a linear fixing member, and its working principle is as follows.

[0047] In the present application, a rod connection assembly is provided on the front end fixing part, a second arc groove is provided on the rear end fixing part, a nylon mesh bag is laid on the surface of the second arc groove, a linear fixing piece is provided on both sides of the second arc groove, and a semicircular third limiting groove for limiting the tail of the mouse is provided on the tail fixing part, and the first side plate and the third side plate are supplemented. Wherein, a nylon mesh bag is fixed on the surface of the second arc groove, and the nylon mesh bag and the surface of the second arc groove have a certain distance, so that the mouse limbs are trapped, and it is difficult to struggle through the limbs to affect the fixing effect. Along the direction from the front end fixing part to the tail fixing part, the second arc groove extends in an arc from the front end fixing part, and the end of the second arc groove remains vertical to the horizontal plane, so that the mouse is naturally trapped and difficult to escape. The linear fixing piece cooperates with the second arc groove, and the hook surface of the Velcro and the fur surface of the Velcro are respectively located outside the second base and are arranged relatively, and are fixed on the second base using adhesive. The length of the fifth Velcro is slightly larger than the transverse diameter of the semicircular second arc groove, and has a certain elasticity, which can adapt to the size of mice of different weights. In the present application, a third limiting groove is provided on the third groove fixing seat, and the third limiting groove extends from the second arc groove to the tail fixing portion to fix the mouse tail. In the bottom support unit of the present application, a first side plate and a third side plate are respectively provided, which form a double fixing system with the linear fixing member to further improve the fixing effect.

[0048] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0049] (1) In the present application, the rod-type connecting assembly, the second arc-shaped groove, the linear fixing member, and the first side plate constitute a multiple restraint mechanism, which can restrain the entire experimental mouse;

[0050] (2) In the present application, the third limiting groove on the third groove fixing seat can specifically fix the tail of the experimental mouse, thereby fully ensuring the activity restraint of the experimental mouse and avoiding interference with the operation;

[0051] (3) The flexible mesh member of the present application cooperates with the rod-type connecting assembly, which enables researchers to operate with one hand. The flexible mesh member composed of the nylon mesh bag can suspend the limbs of the mouse to prevent the mouse from breaking free. Even though the compliance of the same mouse decreases after multiple tests, the researchers can still complete the operation easily.

[0052] (4) The first connecting rod and the flexible mesh member work together to restrict the activity of the mouse's limbs, preventing the staff from being scratched and protecting the staff's experimental safety;

[0053] (5) The mouse fixator of the present application can easily realize repeated fixation of experimental mice, improve the comfort and success rate of the staff, and has high application value and good application prospects;

[0054] (6) The utility model has an ingenious concept, reasonable design, simple structure and is easy to use. It is of great significance for simplifying the mouse fixation operation and improving the operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 Schematic diagram of the three-dimensional structure of the mouse fixator in Example 1.

[0056] Figure 2 Schematic side view of the mouse fixator in Example 1.

[0057] Figure 3 Schematic top view of the mouse fixer in Example 1.

[0058] Figure 4 Schematic cross-sectional view of the mouse fixator in Example 1.

[0059] Markings in the figure: 1. tail fixing part, 2. first side panel, 3. rod connection assembly, 4. first connection surface, 5. flexible mesh member, 6. Velcro hook surface, 7. third limiting groove, 8. Velcro fur surface, 9. second arc-shaped groove, 10. third side panel. DETAILED DESCRIPTION

[0060] The technical solution in the utility model example will be clearly and completely described below in conjunction with the accompanying drawings in the utility model example.

[0061] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0062] Example 1

[0063] See also Figure 1 and Figure 2 The present embodiment provides a mouse fixator, which includes a bottom support unit, a rod connection component, a flexible mesh member, and a linear fixing member.

[0064] The bottom support unit includes a front fixing part, a rear fixing part, and a tail fixing part. Among them, the front fixing part includes a first base and first side plates. There are two first side plates, and the two first side plates are arranged in parallel on both sides of the first base. As shown in the figure, the cross-section of the front fixing part perpendicular to its axis is U-shaped. Denote the opening of the front fixing part as the first opening, and the surface of the first base facing the first opening as the first connection surface. The rod-shaped connection assembly is composed of several first connecting rods. The first connecting rods are located in the first opening, and the two ends of the first connecting rods are respectively connected to the first side plates. There is a first gap between the first connecting rods and the first connection surface. In a specific example, the first base and the first side plates are respectively in the shape of a rectangular cube.

[0065] The tail fixing part includes a third groove fixing seat and third side plates. There are two third side plates, and the two third side plates are arranged in parallel on both sides of the third groove fixing seat. As shown in the figure, the cross-section of the tail fixing part perpendicular to its axis is U-shaped. Denote the opening of the tail fixing part as the third opening, and the surface of the third groove fixing seat facing the third opening as the third connection surface. A third limiting groove for limiting the tail of the mouse is provided on the third connection surface of the third groove fixing seat. In a specific example, the third side plates and the third groove fixing seat are respectively in the shape of a rectangular cube. The third limiting groove is provided on the upper surface of the third groove fixing seat, and the third limiting groove is arranged along the axis of the third groove fixing seat.

[0066] The rear fixing part includes second side plates. There are two second side plates, and the two second side plates are arranged in parallel with each other. One end of the second side plate is connected to the first side plate, and the other end of the second side plate is connected to the third side plate; the first opening and the third opening are respectively located on the same side of the bottom support unit. Denote the side of the second side plate close to the first opening as the second arc-shaped edge. Along the direction from the tail fixing part to the front fixing part, the distance between the second arc-shaped edge and the first connection surface gradually decreases. The second arc-shaped edges of the two second side plates, together with the front fixing part and the tail fixing part, form a second arc-shaped groove for fixing the mouse by gravity (specifically, a concave second arc-shaped groove is formed between the side of the third side plate facing the first side plate, the side of the third groove fixing seat facing the first side plate, the central arc-shaped surface, and the second arc-shaped edge). At the same time, a plurality of holes are provided on the flexible mesh piece. The flexible mesh piece is connected to the bottom support unit, and the flexible mesh piece is located on the second arc-shaped groove. In this embodiment, the bottom support unit can provide support for the flexible mesh piece. In a specific example, the flexible mesh piece is selected as a nylon mesh bag, and the diameter of the holes on the nylon mesh bag is about 1 centimeter.

[0067] Furthermore, the rear end fixing part also includes a second base, and the side of the second base close to the first opening is recorded as the central arc surface. Along the direction from the tail fixing part to the front fixing part, the distance between the central arc surface and the first connecting surface gradually decreases; a second arc groove for fixing the mouse by gravity is formed between the two second arc edges, the central arc surface, the front fixing part and the tail fixing part.

[0068] The linear fixing part is connected to the bottom support unit, and the linear fixing part can fix the mouse. In the present embodiment, the linear fixing part includes a fifth Velcro, a Velcro hook surface, and a Velcro fur surface. Among them, one end of the fifth Velcro is connected to one side of the bottom support unit, and the Velcro fur surface is connected to the other side of the bottom support unit; the Velcro hook surface is arranged on the fifth Velcro, and the Velcro hook surface can be attached to the Velcro fur surface; by adjusting the relative position of the Velcro hook surface and the Velcro fur surface, the needs of fixing the body of mice of different sizes can be met. In a specific example, one end of the fifth Velcro is connected to the outer side of a second side panel, and the Velcro fur surface is connected to the outer side of another second side panel.

[0069] Preferably, the first side plate, the second side plate and the third side plate are designed with equal thickness, and the first side plate, the second side plate and the second side plate are connected in sequence; the first base and the third groove fixing seat are designed with equal height and equal thickness, and the first base and the second base are designed with equal thickness; along the direction from the tail fixing part to the front fixing part, the first base, the second base and the third groove fixing seat are connected in sequence. Furthermore, the front fixing part, the rear fixing part, the tail fixing part and the rod connection assembly are integrated.

[0070] In the above structure, the two first side panels and the two third side panels are arranged in pairs, two by two, and separated in front and back, forming an integrated fixed basic structure of the mouse fixer, which limits the range of movement of the mouse during the fixation process. According to actual measurements, the inner spacing of the two first side panels and the inner spacing of the two third side panels are respectively about 5 cm, which meets the body size requirements of the experimental mice. At the same time, the rod connection assembly is composed of a number of first connecting rods; in a specific example, the rod connection assembly is composed of a number of stainless steel thin columns, which are fixed between the two first side panels through through-holes, and the diameter of the stainless steel thin columns is about 2 mm, which is suitable for the experimental mice to grasp. Further, the first connecting rod is connected to the bottom support unit as a whole, and a certain distance is formed between the rod connection assembly and the first connection surface (that is, there is a first gap between the rod connection assembly and the first connection surface) to prevent the mouse from breaking free by force. In this structure, the rod-type connection component constitutes the whole stainless steel mouse climbing frame, and the first side plate is provided with a plurality of through holes, through which stainless steel thin columns with equal spacing are fixed, and the diameter of the stainless steel thin columns is suitable for mice to grasp; at the same time, the rod-type connection component maintains a certain distance from the first connection surface, and the mouse grasping effect is used to preliminarily fix the mouse head to avoid human pressure.

[0071] The present application sets a second arc-shaped groove on the bottom support unit, and the surface of the second arc-shaped groove is concave compared with the first connecting surface and the third connecting surface, that is, a structure with high ends and concave in the middle is formed. At the same time, along the direction from the tail fixing part to the front fixing part, the distance between the central arc surface and the first connecting surface gradually decreases; the surface of the second arc-shaped groove forms a circular arc-shaped concave surface with low left and high right, so that the mouse body can be trapped. In a specific example, the second arc-shaped groove is in an arc shape along a cross-section perpendicular to its axial direction, and the central angle of the second arc-shaped groove is about 90°; the diameter of the second arc-shaped groove is about 5 cm, which meets the body shape requirements of the experimental mice. At the same time, a flexible mesh is covered at a certain distance above the second arc-shaped groove. The flexible mesh is made of nylon mesh bags, and the hole size of the nylon mesh bag is 1 cm, which is common in the market. In this embodiment, the four corners of the nylon mesh bag are glued and fixed on the second arc-shaped groove, so that the mouse can be fully trapped. The outer side of the second arc-shaped groove is adhered and fixed with a Velcro fur surface and a Velcro hook surface, which has the characteristic of a large spacing adjustment range, and is convenient for users to fix mice of various sizes.

[0072] A third limiting groove is provided on the third connection surface of the tail fixing portion, and the third limiting groove is located on the central axis of the tail fixing portion. In this embodiment, the third limiting groove is concave with a depth of 5 mm, a width of 5 mm, and a length slightly smaller than the average length of the tail of the experimental mouse, so as to facilitate a series of experimental operations such as holding, fixing and injection by the experimenter.

[0073] The operation process of the aforementioned mouse fixer is as follows:

[0074] (1) The experimenter lifts the mouse's tail with his dominant hand, places the mouse's head on the rod-type connection assembly, and uses the mouse's grasping and climbing effect to fix its front paws on the stainless steel thin column of the rod-type connection assembly;

[0075] (2) The experimenter gently pulls the mouse's tail diagonally backward, so that the mouse's body naturally sinks into the second arc-shaped groove; the first connecting surface and the rod-type connecting component cooperate with each other to limit the movement of the mouse's front paws; the nylon mesh bag on the surface of the second arc-shaped groove can prevent the mouse from struggling with the force. The experimenter grabs the fur surface of the Velcro with his other hand and adjusts the tightness of the linear fixing part according to the body shape of the mouse, so that the mouse's body is not easy to swing, avoiding affecting the experimental operation and causing no organic damage to the mouse; at this point, the mouse is basically fixed;

[0076] (3) The experimenter places the mouse's tail in the third limiting groove and can perform experimental operations such as tail vein injection and tail cutting and blood collection.

[0077] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. At the same time, in the drawings of the present utility model, the fill pattern is only for distinguishing the layers, without any other limitation.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mouse fixer, characterized in that: It includes a bottom support unit, a rod connection component, and a flexible mesh member; The bottom support unit includes a front fixing portion, a rear fixing portion, and a tail fixing portion; The front end fixing part comprises a first base and a first side plate, the first side plates are two and the two first side plates are arranged parallel to each other on both sides of the first base, and the front end fixing part is in a U-shaped section along a plane perpendicular to its axial direction; The opening of the front fixing portion is recorded as a first opening, and the surface of the first base facing the first opening is recorded as a first connecting surface; The rod connection assembly is composed of a plurality of first connection rods, the first connection rods are located in the first opening, both ends of the first connection rods are respectively connected to the first side plate, and there is a first gap between the first connection rods and the first connection surface; The tail fixing part comprises a third groove fixing seat and a third side plate, wherein the third side plates are two and the two third side plates are arranged in parallel on both sides of the third groove fixing seat, and the tail fixing part is in a U-shaped section along a section perpendicular to its axial direction; The opening of the tail fixing portion is recorded as the third opening, and the surface of the third groove fixing seat facing the third opening is recorded as the third connecting surface, and the third limiting groove for limiting the mouse tail is provided on the third connecting surface of the third groove fixing seat; The rear end fixing portion includes a second side plate, and the second side plates are two and the two second side plates are arranged parallel to each other; One end of the second side plate is connected to the first side plate, and the other end of the second side plate is connected to the third side plate; The first opening and the third opening are respectively located on the same side of the bottom support unit, and the side of the second side plate close to the first opening is recorded as the second arc-shaped edge; Along the direction from the tail fixing portion to the front fixing portion, the distance between the second arc-shaped edge and the first connecting surface gradually decreases; a second arc-shaped groove for fixing the mouse by gravity is formed between the second arc-shaped edges of the two second side plates, the front fixing portion and the tail fixing portion; The flexible mesh member is provided with a plurality of holes, the flexible mesh member is connected to the bottom support unit and the bottom support unit can provide support for the flexible mesh member, and the flexible mesh member is located on the second arc-shaped groove.

2. The mouse fixer according to claim 1, characterized in that: The distance between the two first side plates is 45-65 mm.

3. The mouse fixer according to claim 1, characterized in that: The first base and the first side plate are respectively rectangular cubes; The first gap is 1-20 mm.

4. The mouse holder according to claim 1, characterized in that: The third limiting groove has a concave depth of 2-20 mm and a width of 3-8 mm.

5. The mouse holder according to claim 1, characterized in that: The second arc-shaped groove is in an arc shape along a cross section perpendicular to the axial direction thereof.

6. The mouse holder according to claim 1, characterized in that: The flexible mesh piece is a nylon mesh bag, and the diameter of the holes on the flexible mesh piece is 5-20 mm.

7. The mouse holder according to claim 1, characterized in that: The rear end fixing portion further includes a second base, and a side of the second base close to the first opening is recorded as a central arc surface; Along the direction from the tail fixing part to the front fixing part, the distance between the central arc surface and the first connecting surface gradually decreases; a second arc-shaped groove for fixing the mouse by gravity is formed between the second arc edges of the two second side plates, the central arc surface, the front fixing part and the tail fixing part.

8. The mouse holder according to claim 1, characterized in that: The front end fixing part, the rear end fixing part and the tail fixing part are integrally formed.

9. The mouse fixer according to any one of claims 1 to 8, characterized in that: The invention also comprises a linear fixing part, which is connected to the bottom supporting unit and can fix the mouse.

10. The mouse holder according to claim 9, characterized in that: The linear fixing element comprises a fifth hook and loop fastener, a hook surface of the hook and loop fastener, and a fleece surface of the hook and loop fastener; One end of the fifth hook and loop fastener is connected to one side of the bottom support unit, and the fur surface of the hook and loop fastener is connected to the other side of the bottom support unit; The hook surface of the Velcro is arranged on the fifth Velcro, and the hook surface of the Velcro can be fitted together with the hairy surface of the Velcro, and the needs of fixing the bodies of mice of different sizes can be met by adjusting the relative positions of the hook surface of the Velcro and the hairy surface of the Velcro.

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