CN219048950U

CN219048950U - Multi-functional rabbit fixing device for experiments

Info

Publication number: CN219048950U
Application number: CN202223259795.7U
Authority: CN
Inventors: 张伟道; 冯俊; 陈杰; 李欣; 邵霖霖; 裴超; 杨二双
Original assignee: Ophthalmology Hospital Of China Traditional Chinese Science Medicine Institute
Current assignee: Ophthalmology Hospital Of China Traditional Chinese Science Medicine Institute
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-05-23
Anticipated expiration: 2032-12-06

Abstract

The utility model discloses a multifunctional experimental rabbit fixing device, which relates to an animal experimental device and comprises a fixing flat plate and four limb fixing assemblies. The utility model has various functions and convenient operation, and can effectively solve the problem that the conventional experimental rabbit fixing device can not meet the use under various experimental conditions.

Description

Multi-functional rabbit fixing device for experiments

Technical Field

The utility model relates to an animal experiment device, in particular to a multifunctional experimental rabbit fixing device.

Background

In animal experiments, rabbits are often used as a study object, and after the rabbits are anesthetized, the four limbs and the head of the rabbits are fixed in a prone position, a supine position and a lateral position for further experiments.

The existing rabbit fixing device is used for fixing a prone position and a supine position of a rabbit generally, and cannot meet the use requirements of various experimental conditions, when the rabbit needs to adopt the lateral position for animal experiments, if the rabbit needs to adopt the eye local anesthesia mode for eye microscopic experiments or eye surgery and the like under the lateral position condition of the rabbit, the experimental process and the experimental result can be influenced due to the fact that the rabbit possibly moves slightly, and the existing rabbit fixing device often fails in experiments because the head and the trunk of the rabbit cannot be reliably fixed.

The patent with the publication number of CN 215080167U discloses a laboratory rabbit fixer, which adopts a mode of fixing the neck, limbs and abdomen of a rabbit to fix the prone position or the supine position of the rabbit, but does not solve the problem of fixing the lateral position of the rabbit.

Therefore, there is a need to design a rabbit fixing device that can be used under a variety of experimental conditions.

Disclosure of Invention

The utility model provides a multifunctional experimental rabbit fixing device, which aims to solve the problems that the existing rabbit fixing device is single in function and difficult to meet the use under various experimental conditions. Fixing four limbs of the rabbit in bilateral horizontal directions through four limb fixing assemblies, fixing the head and the trunk of the rabbit in vertical directions through fixing belts, and limiting the horizontal position of the neck of the rabbit through limiting assemblies so as to fix the prone position and the supine position of the rabbit; the four limbs of the rabbit are fixed on one side of the fixed flat plate through the four limb fixing assembly, the horizontal positions of the neck and the trunk of the rabbit are limited when the rabbit is in the lateral position through the limiting assembly, and the head and the trunk of the rabbit are fixed in the vertical direction through the fixed belt, so that the lateral position of the rabbit is fixed; four limbs fixed subassembly, spacing subassembly and fixed band three cooperation realize prone position, supine position and the omnidirectional fixed of rabbit when lying on one's side position. The aim of the utility model is mainly achieved by the following scheme:

the utility model provides a multi-functional rabbit fixing device for experiments, includes fixed dull and stereotyped, four fixed subassemblies of limbs, characterized by, fixed dull and stereotyped last activity is provided with the fixed band that is used for head and truck to be fixed, and fixed dull and stereotyped below is provided with first drive assembly and second drive assembly, and the top of first drive assembly is connected with the spacing subassembly of truck that is used for carrying out spacing to the rabbit truck, and the top of second drive assembly is connected with the spacing subassembly of neck that is used for carrying out spacing to the rabbit neck, and the spacing subassembly of truck and the spacing subassembly of neck all run through fixed dull and stereotyped.

Further, four limbs fixed subassembly includes threaded rod, traction area and grabs the clamp, and the threaded rod is perpendicular to be set firmly on fixed flat board, traction area one end and threaded rod swing joint, and traction area other end is provided with grabs the clamp.

Further, a plurality of through holes matched with the threaded rod are formed in the traction belt, one end of the traction belt is movably sleeved on the threaded rod through the through holes, two nuts are connected to the threaded rod in a threaded mode, and the traction belt is located between the two nuts.

Further, the grab clamp comprises two grabbers which are matched with each other, each grabber comprises a grabber part and a connecting part, the two connecting parts are movably sleeved on the bolt, the bolt is connected with a jacking nut in a threaded manner, and the two connecting parts are positioned between the jacking nut and the head part of the bolt; the bolt is also sleeved with a spring, and two ends of the spring are respectively connected with the two connecting parts; one of the connecting portions is connected with the traction belt.

Further, the fixed strap comprises a head fixed strap and a trunk fixed strap, and two ends of the head fixed strap and two ends of the trunk fixed strap are detachably connected to the front side and the rear side of the fixed flat plate through adjusting buckles.

Furthermore, an exposing port for exposing the mouth, nose or eyes of the rabbit is formed in the center of the head fixing strap.

Further, a driving box is arranged below the fixed flat plate, the first driving assembly comprises two supporting plates, two sliding rods, two racks and a gear, and the two supporting plates are arranged at the bottom of the driving box left and right; two sliding rods are arranged between the tops of the two supporting plates in a sliding way back and forth; one end of each rack is fixedly connected with the corresponding sliding rod, and the other end of each rack penetrates through a rack limiting groove at the bottom of the other sliding rod; both racks are intermeshed with the gear.

Further, the trunk spacing subassembly is 4, and every trunk spacing subassembly includes first bracing piece and trunk limiting plate, and first bracing piece bottom end is fixed firmly the top of slide bar, trunk limiting plate rotate and connect in first bracing piece top.

Further, the second driving assembly comprises a bidirectional screw rod and a second motor, one end of the bidirectional screw rod is connected with the second motor, the other end of the bidirectional screw rod is rotationally connected with the driving box, and two screw nuts which are matched with each other are respectively connected to the two screw directions of the bidirectional screw rod.

Further, neck limiting components are 2, each neck limiting component comprises a second supporting rod and a neck limiting plate, the bottom end of the second supporting rod is fixedly arranged at the top of the screw nut, and the neck limiting plates are rotationally connected to the top of the second supporting rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. the multifunctional prone position and side position experiment device is convenient to operate and various in functions, and can be used under various experimental conditions of prone position, supine position and side position of a rabbit. When the rabbit is fixed in prone position and supine position, the four limbs of the rabbit are fixed on the two sides of the fixed flat plate through the cooperation of the grabbing clamp, the traction belt and the threaded rod; the positions of the inner side and the outer side of the neck of the rabbit are limited through the neck limiting plate; fixing the rabbit head and the rabbit trunk in the vertical direction through a head fixing strap and a trunk fixing strap respectively; when the rabbits are fixed in the lateral position, the four limbs of the rabbits are fixed on the same side of the fixing plate through the cooperation of the grabbing clamp, the traction belt and the threaded rod; the positions of the inner side and the outer side of the trunk and the neck of the rabbit are limited through the trunk limiting plate and the neck limiting plate; fixing the head and the trunk of the rabbit in the vertical direction through a fixing strap; the four-limb fixing assembly, the limiting assembly and the fixing strap are matched to realize omnibearing and firm fixation of the rabbit in the prone position, the supine position and the lateral position;

2. when the rabbit carries out eye animal experiments in the lateral position, the design of exposing the mouth on the head fixing strap makes the head fixing strap expose the eye field of vision when fixing the head, makes things convenient for experimental operation.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is an exploded view of the limb fixation assembly of the present utility model;

FIG. 3 is a schematic view of the structure of the clip according to the present utility model;

FIG. 4 is a schematic diagram of a first driving assembly according to the present utility model;

FIG. 5 is a cross-sectional view taken along B-B in FIG. 1;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 7 is an enlarged view of a portion of area a of FIG. 6;

in the figure:

1, fixing a flat plate; 11 adjusting buckles; 12 a first chute; 13 a second chute; a 2-limb fixation assembly; a 21 threaded rod; a 211 nut; 22 traction belt; 221 via holes; 222 a first collar; 23, grabbing clips; 231 grip portion; 232 connection parts; 233 bolts; 2331 tightens the nut; 234 a second collar; 31 fixing the binding belt at the head; 311 exposing the mouth; 32 trunk fixing belts; 4 a first drive assembly; a 41 support plate; 42 sliding bar; 421 sliding blocks; 422 rack limit grooves; a 43 rack; 44 gears; a 45 rotation shaft; 46 a first motor; 5 a second drive assembly; 51 bearing blocks; 52 bidirectional screw rod; 53 screw nuts; 54 a second motor; 6, a limiting component; 61 a torso stop assembly; 611 a first support bar; 612 torso limiting plates; 62 a neck stop assembly; 611 a second support bar; 622 neck stop plate; 7 drive box.

Detailed Description

In order to enable those skilled in the art to better understand the technical scheme of the present utility model, the technical scheme of the present utility model will be further described in detail with reference to the accompanying drawings and examples.

Embodiment one:

as shown in fig. 1-6, a multi-functional experimental rabbit fixing device, including fixed dull and stereotyped 1, four fixed subassemblies 2 of limbs, characterized by, fixed dull and stereotyped 1 is gone up the activity and is provided with the fixed band that is used for head and truck to be fixed, fixed dull and stereotyped 1 below is provided with first drive assembly 4 and second drive assembly 5, and the top of first drive assembly 4 is connected with the spacing subassembly 61 of truck that is used for carrying out spacing to the rabbit truck, and the top of second drive assembly 5 is connected with the spacing subassembly 62 of neck that is used for carrying out spacing to the rabbit neck, and the spacing subassembly 61 of truck and the spacing subassembly 62 of neck all run through fixed dull and stereotyped 1. The fixed flat plate 1 is provided with a first chute 12 and a first chute 13 which are respectively used for the passage of the trunk limiting assembly 61 and the neck limiting assembly 62.

Further, the four-limb fixing assembly 2 comprises a threaded rod 21 and ropes, the threaded rod 21 is fixedly arranged on four corners of the fixing flat plate 1 corresponding to four limbs of the rabbit, and the four limbs of the rabbit are fixed on the 4 threaded rods 21 through the ropes.

Further, the fixing strap comprises a head fixing strap 31 and a trunk fixing strap 32, and the two ends of the head fixing strap 31 and the trunk fixing strap 32 are detachably connected to the front side and the rear side of the fixing plate 1 through the adjusting buckle 11. The adjusting buckle 11 is fixed on the front side and the rear side of the fixed flat plate 1, and the two ends of the head fixing strap 31 and the trunk fixing strap 32 penetrate through the adjusting buckle 11 to adjust the length and lock. The fixing strap is made of a material with certain elasticity, so that the rabbit can be fixed without being too tight.

Further, an exposing opening 311 for exposing the nose or eyes of the rabbit is provided at the center of the head fixing strap 31. When the device is fixed in the supine position, the nose and the oral cavity of the rabbit can be exposed, so that the rabbit is prevented from choking in experiments; the eyes can be exposed for rabbit eye experiments when the lateral position is fixed.

Further, a driving box 7 is arranged below the fixed flat plate 1, the first driving assembly 4 comprises two supporting plates 41, two sliding rods 42, two racks 43 and a gear 44, and the two supporting plates 41 are arranged at the bottom of the driving box 7 left and right; two sliding rods 42 are arranged between the tops of the two supporting plates 41 in a back-and-forth sliding manner, sliding blocks 421 are fixedly arranged at the lower parts of the two ends of the sliding rods 42, grooves matched with the sliding blocks 421 are formed in the tops of the supporting plates 41, and the sliding blocks 421 are slidably embedded in the grooves to realize sliding connection; one ends of the two racks 43 are respectively parallel and staggered and fixedly arranged at the bottoms of the two sliding rods 42, and the other ends of the two racks 43 are respectively exposed outside the sliding rods 42 after penetrating through rack limiting grooves 422 at the bottoms of the sliding rods 42 at the other sides; both racks 43 intermesh with the gear 44; a rotation shaft 45 at the lower end of the gear 44 is rotatably connected to the bottom surface of the drive box 7 by a first motor 46.

Further, the number of the trunk limiting assemblies 61 is 4, each trunk limiting assembly 61 comprises a first supporting rod 611 and a trunk limiting plate 612, the bottom end of the first supporting rod 611 is fixedly arranged at the top of the sliding rod 42, and the trunk limiting plates 612 are rotatably connected to the top of the first supporting rod 611. The trunk limiting plate 612 is mainly used for fixing when the rabbit lies on one side, and when lying on one side, two front legs and two rear legs of the rabbit are respectively fixed on the threaded rod 21 on one side, and the trunk limiting plate 612 is located between the front leg and the rear leg and fixes the inside and outside position of the rabbit trunk, and the trunk limiting plate 612 is rotationally connected with the first supporting rod 611, so that the trunk limiting plate 612 can rotate according to the stress condition of the trunk to adapt to the body shape of the rabbit.

Further, the second driving assembly 5 includes a bi-directional screw 52 and a second motor 54, one end of the bi-directional screw 52 is connected with the second motor 54, the other end of the bi-directional screw 52 is rotationally connected with the driving box 7 through a bearing seat (51), and two screw nuts 53 which are mutually matched are connected in the upward direction of the bi-directional screw 52.

Further, the number of the neck limiting assemblies 62 is 2, each neck limiting assembly 62 comprises a second supporting rod 621 and a neck limiting plate 622, the bottom end of the second supporting rod 621 is fixedly arranged at the top of the screw nut 53, and the neck limiting plates 622 are rotatably connected to the top of the second supporting rod 621. Neck stop plate 622 is the same shape and size as torso stop plate 612, and torso stop plate 612 has a larger area than neck stop plate 622 because the torso is larger than the neck.

Example two

As shown in fig. 2, the difference from the first embodiment is that the limb fixing assembly 2 in this embodiment includes a threaded rod 21, a traction belt 22 and a grip clip 23, the threaded rod 21 is vertically fixed on the fixing plate 1, one end of the traction belt 22 is movably connected with the threaded rod 21, and the other end of the traction belt 22 is provided with the grip clip 23.

Further, the traction belt 22 is provided with a plurality of through holes 221 adapted to the threaded rod 21, one end of the traction belt 22 is movably sleeved on the threaded rod 21 through the through holes 221, the threaded rod 21 is connected with two nuts 211 in a threaded manner, and the traction belt 22 is located between the two nuts 211.

Further, the gripper 23 includes two grippers that are matched with each other, each gripper includes a gripper 231 and a connecting portion 232, the two connecting portions 232 are movably sleeved on the bolt 233, the bolt 233 is connected with a tightening nut 2331 in a threaded manner, and the two connecting portions 232 are located between the tightening nut 2331 and the head of the bolt 233; a spring is sleeved on the bolt 233, and two ends of the spring are respectively and movably connected with the two connecting parts 232; one of the connection portions 232 is connected to the traction belt 22.

The method of use of the utility model will now be described.

In animal experiments, when a rabbit is fixed in a prone position and a supine position, four limbs of the rabbit are sequentially fixed on a grabbing clamp 23 in the horizontal direction, then a traction belt 22 is fixed on 4 threaded rods 21, and an adjusting nut 211 clamps the traction belt 22; starting the second motor 54, moving 2 neck limiting plates 621 in opposite directions, and limiting the positions of the inner side and the outer side of the neck of the rabbit through the 2 neck limiting plates 23; in the vertical direction, the head and the torso of the rabbit are fixed by using a head fixing band 31 and a torso fixing band 32, respectively.

When the rabbit is fixed in a lateral position, the traction belts 22 on two sides are moved to the threaded rods 21 on the same side, hung and fixed on the same sides, and 2 front legs and 2 rear legs of the rabbit are respectively fixed on the two grabbing clamps 23 on the corresponding sides; subsequently, the first motor 46 is started, the rotating shaft 45 drives the gear 44 to rotate, the 4 trunk limiting plates 612 move in two-to-two directions, and the positions of the inner side and the outer side of the trunk part are limited by the 4 trunk limiting plates 612; starting the second motor 54, moving 2 neck limiting plates 621 in opposite directions, and limiting the positions of the inner side and the outer side of the neck of the rabbit through the 2 neck limiting plates 23; finally, the trunk of the rabbit is fixed by a trunk fixing strap 32, and the head is fixed by a head fixing strap 31, so that the upper and lower positions of the trunk and the head are limited.

When adopting the lateral position to fix to carry out the eye experiment to the rabbit, the rabbit head adopts head fixation band 31 to fix, and head fixation band 31 middle part is for exposing mouth 311, can be used for exposing the eye when the lateral position is fixed, can provide sufficient operation field of vision when fixed head.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a multi-functional rabbit fixing device for experiments, including fixed dull and stereotyped (1), four fixed subassemblies (2), characterized by is provided with the fixed band that is used for head and truck to fix on fixed dull and stereotyped (1) the activity, fixed dull and stereotyped (1) below is provided with first drive assembly (4) and second drive assembly (5), the top of first drive assembly (4) is connected with and is used for carrying out spacing truck spacing subassembly (61) to the rabbit truck, the top of second drive assembly (5) is connected with and is used for carrying out spacing neck spacing subassembly (62) to the rabbit neck, truck spacing subassembly (61) and neck spacing subassembly (62) all run through fixed dull and stereotyped (1).

2. The multifunctional experimental rabbit fixing device according to claim 1, wherein the four-limb fixing assembly (2) comprises a threaded rod (21), a traction belt (22) and a grabbing clamp (23), the threaded rod (21) is vertically fixed on the fixing flat plate (1), one end of the traction belt (22) is movably connected with the threaded rod (21), and the grabbing clamp (23) is arranged at the other end of the traction belt (22).

3. The multifunctional experimental rabbit fixing device according to claim 2, wherein a plurality of through holes (221) matched with the threaded rod (21) are formed in the traction belt (22), one end of the traction belt (22) is movably sleeved on the threaded rod (21) through the through holes (221), two nuts (211) are connected to the threaded rod (21) in a threaded mode, and the traction belt (22) is located between the two nuts (211).

4. A multi-functional laboratory rabbit fixing device according to claim 3, characterized in that the gripping clamp (23) comprises two gripping hands matched with each other, each gripping hand comprises a gripping hand part (231) and a connecting part (232), the two connecting parts (232) are movably sleeved on the bolt (233), the bolt (233) is in threaded connection with a tightening nut (2331), and the two connecting parts (232) are positioned between the tightening nut (2331) and the head of the bolt (233); a spring is sleeved on the bolt (233), and two ends of the spring are respectively connected with the two connecting parts (232); one of the connection portions (232) is connected to the traction belt (22).

5. The multifunctional experimental rabbit fixing device according to claim 1, wherein the fixing strap comprises a head fixing strap (31) and a trunk fixing strap (32), and two ends of the head fixing strap (31) and two ends of the trunk fixing strap (32) are detachably connected to the front side and the rear side of the fixing flat plate (1) through adjusting buckles (11).

6. The multifunctional experimental rabbit fixing device according to claim 5, wherein an exposing port (311) for exposing the nose or eyes of the rabbit is arranged at the center of the head fixing strap (31).

7. The multifunctional experimental rabbit fixing device according to claim 1, wherein a driving box (7) is arranged below the fixing flat plate (1), the first driving assembly (4) comprises two supporting plates (41), two sliding rods (42), two racks (43) and a gear (44), and the two supporting plates (41) are arranged at the bottom of the driving box (7) left and right; two sliding rods (42) are arranged between the tops of the two supporting plates (41) in a sliding way back and forth; one end of each rack (43) is fixedly connected with the corresponding sliding rod (42), and the other end of each rack passes through a rack limiting groove (422) at the bottom of the other sliding rod (42); both racks (43) are intermeshed with the gear (44).

8. The multifunctional experimental rabbit fixing device according to claim 7, wherein the number of the trunk limiting assemblies (61) is 4, each trunk limiting assembly (61) comprises a first supporting rod (611) and a trunk limiting plate (612), the bottom end of the first supporting rod (611) is fixedly arranged at the top of the sliding rod (42), and the trunk limiting plates (612) are rotatably connected to the top of the first supporting rod (611).

9. The multifunctional experimental rabbit fixing device according to claim 1, wherein the second driving assembly (5) comprises a bidirectional screw (52) and a second motor (54), one end of the bidirectional screw (52) is connected with the second motor (54), the other end of the bidirectional screw (52) is rotatably connected with the driving box (7), and two screw nuts (53) which are mutually matched are connected in the two rotation directions of the bidirectional screw (52).

10. The multifunctional experimental rabbit fixing device according to claim 9, wherein the number of the neck limiting assemblies (62) is 2, each neck limiting assembly (62) comprises a second supporting rod (621) and a neck limiting plate (622), the bottom end of the second supporting rod (621) is fixedly arranged at the top of the screw nut (53), and the neck limiting plates (622) are rotatably connected to the top of the second supporting rod (621).