Mouse holder for eye examination

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, concretely relates to a mouse fixer for eye examination, which comprises a base, an adjustable cross bar, a head fixing clamp and a body fixing sleeve, the base is provided with a fixed lower jaw support and two base supports, the adjustable cross bar capable of being adjusted in height is arranged above the two base supports, the head fixing clamp is arranged above the adjustable cross bar, the head fixing clamp has a scissors type structure, a mouse is placed on the base, the lower jaw of the mouse is placed on the fixed lower jaw support, the body of the mouse is fixed on the base through the body fixing sleeve, and the ears of the mouse are clamped through the head fixing clamp. The utility model can meet the needs of fixing mice of different sizes, fix the head and not hinder the ophthalmic examination, and has the advantages of simple design and high practicability.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and specifically relates to a mouse fixation device for eye examination. Background Technology

[0002] In biomedical research, mice are among the most commonly used laboratory animals, and this is also true in ophthalmological research. Mouse restraints are essential experimental instruments for conducting related experiments and examinations. Currently, most widely used mouse restraints employ a full-body fixation method. While this effectively secures the mouse, it still has some limitations and is not suitable for ophthalmological research. First, existing full-body mouse restraints have limitations on mouse size. Different strains and ages of mice vary in size, and standardized restraints cannot accommodate all mouse sizes, potentially leading to insecure fixation and affecting the accuracy and repeatability of experimental procedures. Second, full-body mouse restraints typically require complete head coverage, but in ophthalmological examinations, full head coverage often obstructs eye exposure and observation. This results in incomplete eye images, affecting the accuracy and reliability of examination results. Furthermore, if the head is not effectively fixed, the mouse often exhibits frequent head movements during examination. These involuntary movements lead to blurred images, focusing difficulties, prolonged examination time, reduced efficiency, and the potential for accidental eye damage due to head movement. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention proposes a mouse fixation device for eye examination, which can fix the body and head of mice of different sizes, thereby completing the ophthalmological examination of mice.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A mouse restraint for eye examination includes: a base, an adjustable crossbar, a head restraint clip, and a body restraint sleeve. The base is provided with a fixed chin rest and two base supports. Above the two base supports is an adjustable crossbar that can be adjusted in height. Above the adjustable crossbar is a head restraint clip. A mouse is placed on the base, with the mouse's chin resting on the fixed chin rest. The mouse's body is fixed to the base by the body restraint sleeve, and the mouse's ears are held by the head restraint clip.

[0006] The adjustable crossbar is fixed to the side of the two base brackets by fastening bolts, and the adjustable crossbar is perpendicular to the base brackets.

[0007] The two base supports are provided with multiple sets of bolt holes, and the bolt holes on the two base supports are in the same position. The adjustable crossbar is fixed to the bolt holes of the base supports by fastening bolts. The height of the adjustable crossbar can be adjusted by adjusting the fastening bolts to connect with bolt holes of different heights.

[0008] The head clamp is a scissor-type structure, including two clamping rods. The upper middle parts of the two clamping rods are cross-hinged to an adjustable crossbar. The top of the two clamping rods is provided with an adjusting bolt to adjust the opening and closing angle of the clamping rods. The bottom of the two clamping rods is provided with a clamping head made of soft material. The two clamping heads are arranged opposite each other and clamp the mouse's ears.

[0009] The body fixation sleeve is a single-sided hook-and-loop fastener with a hook side at one end. The base has two slots, through which the fastener passes. The hook side of the fastener is attached to the loop side to fix the mouse's body.

[0010] The Velcro is also fitted with a limiting ring.

[0011] The beneficial effects of this utility model are:

[0012] 1. This invention can meet the need for fixing mice of different sizes, while also fixing the head without obstructing ophthalmic examinations. The device is simple in design and highly practical.

[0013] 2. The body fixation sleeve of this utility model can meet the needs of fixing the body of mice of different sizes without causing harm to the mouse body.

[0014] 3. This utility model uses a head-fixing clip to hold the mouse's ear, and with the cooperation of a fixed chin rest, the head is fixed without obstructing ophthalmic examination.

[0015] 4. The adjustable crossbar of this utility model is connected to bolt holes at different positions on the base bracket, which can adjust the height of the adjustable crossbar and adjust the head fixing clamp to a suitable position. At the same time, the angle of the clamping head can be adjusted by adjusting the bolts to adapt the clamping head to the head shape of the mouse, making it easier to clamp the mouse's ears. Attached Figure Description

[0016] Figure 1 Front view of the mouse restraint device of this utility model;

[0017] Figure 2 A schematic diagram of the base of the mouse restraint device of this utility model;

[0018] Figure 3 A schematic diagram showing the connection between the adjustable crossbar and the base support of the mouse restraint device of this utility model;

[0019] Figure 4A schematic diagram of the head fixing clip of the mouse fixation device of this utility model;

[0020] Figure 5 A schematic diagram of the body fixation sleeve of the mouse fixation device of this utility model;

[0021] In the diagram: 1. Base; 11. Fixed chin support; 12. Base bracket; 13. Slot; 2. Adjustable crossbar; 21. Fastening bolt; 3. Head fixing clip; 31. Adjusting bolt; 32. Clamping rod; 33. Connecting shaft; 34. Clamping head; 4. Body fixing sleeve; 41. Limiting ring; 42. Velcro; 43. Hook end. Detailed Implementation

[0022] The technical solutions described below, in conjunction with the accompanying drawings of the embodiments of this utility model, will be clearly and comprehensively described.

[0023] This novel device takes into account the fixation needs of mice of different sizes, and can effectively fix the head without obstructing the exposure and observation of the eyes. This will help improve the accuracy, consistency and efficiency of mouse ophthalmological examinations, and provide better technical support for scientific research in related fields.

[0024] like Figures 1-5 As shown, a mouse restraint for eye examination includes: a base 1, an adjustable crossbar 2, a head clamp 3, and a body clamp 4. The base 1 is provided with a fixed chin rest 11 and two base supports 12. The adjustable crossbar 2, which can be height adjusted, is provided above the two base supports 12. The head clamp 3 is provided above the adjustable crossbar 2. A mouse is placed on the base 1, with the mouse's chin resting on the fixed chin rest 11. The mouse's body is fixed to the base 1 by the body clamp 4, and the mouse's ears are clamped by the head clamp 3.

[0025] In this embodiment, the adjustable crossbar 2 is adjusted to a suitable height according to the size of the mouse. The head fixing clip 3 on the adjustable crossbar 2 fixes the head of the mouse. At the same time, the mouse's lower jaw is placed in the fixed lower jaw support 11 to prevent the mouse's head from moving. This also exposes the mouse's eyes to the outside. The mouse's body is fixed by the body fixing sleeve 4 to prevent the mouse's body from moving, thereby fixing the mouse and facilitating eye examination.

[0026] The adjustable crossbar 2 is fixed to the side of the two base supports 12 by fastening bolts 21, and the adjustable crossbar 2 is perpendicular to the base supports 12; the two base supports 12 are provided with multiple sets of bolt holes, and the bolt holes on the two base supports 12 are in the same position. The adjustable crossbar 2 is fixed to the bolt holes of the base supports 12 by fastening bolts 21. The height of the adjustable crossbar 2 can be adjusted by adjusting the fastening bolts 21 to connect with bolt holes of different heights.

[0027] In this embodiment, the height of the adjustable crossbar 2 can be adjusted by multiple sets of bolt holes provided on the base bracket 12. After adjusting to a suitable height, the adjustable crossbar 2 is fixedly connected to the bolt holes by fastening bolts 21. At the same time, the adjustable crossbar 2 is perpendicular to the base bracket 12, which can ensure that the adjustable crossbar 2 is parallel to the base 1, thereby ensuring that the head fixing clip 3 can be accurately clamped on the mouse's ear and the clamping stability is higher.

[0028] The head clamp 3 is a scissor-type structure, including two clamping rods 32. The upper middle parts of the two clamping rods 32 are cross-hinged on the adjustable crossbar 2. Specifically, a connecting shaft is provided at the intersection of the two clamping rods 32, and the connecting shaft is fixed on the adjustable crossbar 2. The top of the two clamping rods 32 is provided with an adjusting bolt 31 for adjusting the opening and closing angle of the clamping rods. The bottom of the two clamping rods 32 is provided with a clamping head 34 made of soft material. The two clamping heads 34 are arranged opposite each other and clamp the mouse's ears. By loosening the adjusting bolt 31, the clamping rods 32 make a scissor-like movement around the connecting shaft 33, so that the clamping heads 34 can just clamp the mouse's ears on both sides.

[0029] In this embodiment, since the two clamping rods 32 are hinged to the adjustable crossbar 2, the clamping angle of the two clamping rods 32 can be adjusted by adjusting the tightening force of the adjusting bolt 31 and the two clamping rods 32, thereby achieving clamping of the heads of mice of different sizes. At the same time, by setting the clamping head 34 of soft material, damage to the ears of the mice is prevented.

[0030] The body fixing sleeve 4 is a single-sided hook and loop fastener 42 with a hook side at one end. The hook and loop fastener 42 is also provided with a limiting ring 41. The base 1 is provided with two slots 13. The hook side 43 of the hook and loop fastener 42 passes through the limiting ring 41 and the hook side 43 of the hook and loop fastener 42 passes through the two slots 13. The hook side 43 of the hook and loop fastener 42 is attached to the fur side to fix the mouse's body. The limiting ring 41 fixes the hook and loop fastener 42.

[0031] The method of using this utility model is as follows:

[0032] Before use, prepare for operation according to the usual methods. The specific steps are as follows:

[0033] 1. Fix the mouse's body and lower jaw: Place the mouse's lower jaw on the fixed lower jaw support 11, so that the mouse lies prone on the base. Pass the Velcro from below through the slot 13 and pass the hook end 43 through the limiting ring 41 to attach it to the fur surface to complete the fixation of the mouse's body.

[0034] 2. Adjust the height of the head clamp 3: Adjust the height of the head clamp 3 according to the size of the mouse; loosen the fastening bolt 21 of the adjustable crossbar 2 so that the adjustable crossbar 2 can slide up and down along the base bracket 12. After reaching the appropriate position, tighten the fastening bolt 21 to fix the adjustable crossbar 2.

[0035] 3. Adjust the angle of the head clamp 3 to hold the mouse's head: By rotating the adjusting bolt 31, the clamping rod 32 makes a scissor motion around the connecting shaft 33, so that the clamping head 34 just clamps the mouse's ears on both sides, thus completing the fixation of the mouse's head.

[0036] 4. Perform the inspection operation.

[0037] 5. Release the mouse from its restraints: After the inspection is completed, rotate the adjusting bolt 31 again to loosen the mouse's head; unfasten the Velcro 42, remove the mouse, and the operation is complete.

Claims

1. A mouse holder for eye examination, characterized by, include: The device consists of a base, an adjustable crossbar, a head clamp, and a body clamp. The base has a fixed chin rest and two base supports. Above the two base supports is an adjustable crossbar that can be adjusted in height. Above the adjustable crossbar is a head clamp. A mouse is placed on the base, with the mouse's chin resting on the fixed chin rest. The mouse's body is fixed to the base by the body clamp, and the mouse's ears are held in place by the head clamp.

2. The mouse holder for ocular examination according to claim 1, wherein The adjustable crossbar is fixed to the side of the two base brackets by fastening bolts, and the adjustable crossbar is perpendicular to the base brackets.

3. The mouse holder for ocular examination according to claim 2, wherein The two base supports are provided with multiple sets of bolt holes, and the bolt holes on the two base supports are in the same position. The adjustable crossbar is fixed to the bolt holes of the base supports by fastening bolts. The height of the adjustable crossbar can be adjusted by adjusting the fastening bolts to connect with bolt holes of different heights.

4. A mouse restraint for eye examination according to claim 1, characterized in that, The head clamp is a scissor-type structure, including two clamping rods. The upper middle parts of the two clamping rods are cross-hinged to an adjustable crossbar. The top of the two clamping rods is provided with an adjusting bolt to adjust the opening and closing angle of the clamping rods. The bottom of the two clamping rods is provided with a clamping head made of soft material. The two clamping heads are arranged opposite each other and clamp the mouse's ears.

5. A mouse restraint for eye examination according to claim 1, characterized in that, The body fixation sleeve is a single-sided hook-and-loop fastener with a hook side at one end. The base has two slots, through which the fastener passes. The hook side of the fastener is attached to the loop side to fix the mouse's body.

6. A mouse restraint for eye examination according to claim 5, characterized in that, The Velcro is also fitted with a limiting ring.

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