Experimental animal fixing device

Abstract

The utility model discloses an experimental animal fixing device, and relates to the technical field of animal experiment research, the experimental animal fixing device is characterized in that a fixing plate is provided with a through hole for a bandage to pass through, and the first end of a first vertical plate and / or the first end of a second vertical plate are / is adjustably arranged on a transverse plate so as to change the distance between the first vertical plate and the second vertical plate; the second end of the first vertical plate is rotationally connected with the first end of the fixing plate, the second end of the second vertical plate is rotationally connected with the second end of the fixing plate, the distance between the first end of the fixing plate and / or the second end of the fixing plate and the transverse plate is adjustable, and the locking mechanism is arranged at the first end of the fixing plate and / or the second end of the fixing plate. The locking mechanism is used for limiting rotation of the fixing plate relative to the first vertical plate and the second vertical plate. The experimental animal is fixed on the fixing plate in a lying mode, and the inclination angle of the fixing plate is adjustable, so that the situation of brain ischemia of the experimental animal is avoided on the premise that the fixing of the experimental animal meets most experimental requirements, and the fatality rate of the experimental animal after an experiment is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of animal experimental research, in particular to an experimental animal fixing device. BACKGROUND

[0002] Animal experiment refers to using animals as experimental objects in scientific research to obtain scientific knowledge, test drugs, study disease mechanisms, and develop new treatment methods. Animal experiment plays an important role in the fields of medicine, biology, pharmacology, and toxicology.

[0003] When performing animal experiments, it is usually necessary to fix the experimental animals. Fixing animals can prevent accidental attacks by animals, reduce the risk of experimental personnel being bitten or scratched, and ensure the stability of experimental operations and reduce experimental errors caused by animal movement, thereby improving the reliability of experimental results. The existing experimental animal fixing device fixes the four limbs of the experimental animal to the four corners of the frame, suspends the experimental animal to achieve fixation, and then performs subsequent operations such as anesthesia on the experimental animal. However, due to the suspension method, the brain of the experimental animal may be ischemic, and if the experimental time is too long, the experimental animal may be severely injured, which may affect the survival rate of the animal after the experiment.

[0004] Therefore, how to effectively avoid the brain ischemia of the experimental animal and reduce the mortality rate of the animal after the experiment is a problem to be solved by those skilled in the art. CONTENT OF THE INVENTION

[0005] The purpose of the present application is to provide an experimental animal fixing device to solve the problem that suspending the experimental animal to achieve fixation may cause brain ischemia of the experimental animal, thereby affecting the survival rate of the animal after the experiment.

[0006] To solve the above technical problems, the present application provides an experimental animal fixing device, comprising: a fixing plate, a first vertical plate, a second vertical plate, a horizontal plate, and a locking mechanism.

[0007] The fixing plate is provided with a perforation for a binding strap to pass through, the fixing plate is used to carry the experimental animal, the first end of the first vertical plate and / or the first end of the second vertical plate is adjustably arranged on the horizontal plate to change the distance between the first vertical plate and the second vertical plate, the second end of the first vertical plate is rotatably connected to the first end of the fixing plate, the second end of the second vertical plate is rotatably connected to the second end of the fixing plate, the distance between the first end of the fixing plate and the horizontal plate is adjustably arranged, and / or the distance between the second end of the fixing plate and the horizontal plate is adjustably arranged, the locking mechanism is arranged at the first end of the fixing plate and / or the second end of the fixing plate, and the locking mechanism is used to limit the rotation of the fixing plate relative to the first vertical plate and the second vertical plate.

[0008] In an embodiment, the first vertical plate is a telescopic plate with adjustable length, and the second end of the fixed plate is arranged on the second vertical plate with adjustable height.

[0009] In an embodiment, the second end of the fixed plate is provided with a first baffle and a second baffle, the first baffle is provided with a first through hole, the second baffle is provided with a second through hole, the distance between the first baffle and the second baffle matches the width of the second vertical plate, the second vertical plate is provided with a plurality of through holes, the through holes are arranged at intervals along the length direction of the second vertical plate, the through holes extend along the width direction of the second vertical plate, the locking mechanism comprises a first bolt and a first nut, the first bolt passes through the first through hole, the through hole and the second through hole in sequence, and the first nut is threadedly connected with the tail of the first bolt to connect the second vertical plate between the first baffle and the second baffle.

[0010] In an embodiment, the first vertical plate comprises a first branch plate and a second branch plate, the first end of the first branch plate is connected with the horizontal plate, the second end of the first branch plate is provided with a sliding groove, the first end of the second branch plate is provided with a sliding block, the sliding block extends along the length direction of the second branch plate, the second branch plate and the first branch plate are slidingly connected through the sliding block and the sliding groove to change the length of the first vertical plate, and the second end of the second branch plate is rotationally connected with the first end of the fixed plate through a rotating shaft.

[0011] In an embodiment, the first through hole and the second through hole are both long circular holes, the length direction of the long circular hole is consistent with the length direction of the fixed plate, and the first bolt is movable along the length direction of the long circular hole.

[0012] In an embodiment, the first end of the fixed plate or the second end of the fixed plate is provided with a breathing mask for respiratory anesthesia administration.

[0013] In an embodiment, the breathing mask comprises a first cylinder, a second cylinder, an arc-shaped slot, a push rod and a connecting rod, the bottom surface of the first cylinder is provided with a ventilation hole, the second cylinder is sleeved in the first cylinder through the top opening of the first cylinder, the first end of the arc-shaped slot is connected with the bottom of the first cylinder through the bottom opening of the second cylinder, the second end of the arc-shaped slot extends out of the first cylinder through the top opening of the second cylinder, the sidewall of the first cylinder is provided with a guide hole extending in the axial direction, one end of the push rod is connected with the sidewall of the second cylinder, the other end of the push rod extends out of the first cylinder through the guide hole, the push rod moves along the guide hole to change the length of the second cylinder extending out of the first cylinder, and the connecting rod is connected on both sides of the arc-shaped slot and is arranged close to the second end of the arc-shaped slot.

[0014] In an embodiment, the two sides of the first cylinder are respectively provided with connecting ears, the connecting ears are provided with bolt holes, the fixed plate is provided with a waist-shaped hole on both sides of one end of the breathing mask, the tail of a second bolt passes through the bolt holes and the waist-shaped hole in sequence, a second nut is threadedly connected with the tail of the second bolt, the second bolt can slide along the length direction of the waist-shaped hole, and the length direction of the waist-shaped hole is consistent with the length direction of the fixed plate.

[0015] In an embodiment, the first side edge of the fixed plate is provided with a notch for exposing the detection part of the experimental animal, and both ends of the notch are provided with the perforations.

[0016] In an embodiment, the fixed plate is further provided with a clamping block, the notch is provided with a clamping groove, the clamping block is detachably connected with the fixed plate through the clamping groove, the clamping block is provided with the perforations, and the second side edge of the fixed plate is connected with an extension plate, and the extension plate is provided with a plurality of perforations arranged at intervals along the length direction of the fixed plate.

[0017] The experimental animal fixing device provided by the application comprises a fixing plate, a first vertical plate, a second vertical plate, a horizontal plate and a locking mechanism. The fixing plate is provided with a through hole for a binding belt to pass through, and is used for bearing an experimental animal. The first end of the first vertical plate and / or the first end of the second vertical plate is adjustably arranged on the horizontal plate, so as to change the distance between the first vertical plate and the second vertical plate. The second end of the first vertical plate is rotationally connected with the first end of the fixing plate, and the second end of the second vertical plate is rotationally connected with the second end of the fixing plate. The distance between the first end of the fixing plate and the horizontal plate is adjustably arranged, and / or the distance between the second end of the fixing plate and the horizontal plate is adjustably arranged. The locking mechanism is arranged at the first end of the fixing plate and / or the second end of the fixing plate, and is used for limiting the rotation of the fixing plate relative to the first vertical plate and the second vertical plate. The experimental animal is fixed on the fixing plate in a lying manner, and the inclination angle of the fixing plate is adjustable, so that the experimental animal is fixed under the premise of meeting the needs of most experiments, and the mortality of the experimental animal after the experiment is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the application, the drawings required in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 A structural diagram of an experimental animal fixing device provided by an embodiment of the application;

[0020] Figure 2 A side view of an experimental animal fixing device provided by an embodiment of the application;

[0021] Figure 3 A structural diagram of another experimental animal fixing device provided by an embodiment of the application;

[0022] Figure 4 A structural diagram of a breathing mask provided by an embodiment of the application;

[0023] Figure 5 A bottom view of a breathing mask provided by an embodiment of the application;

[0024] Figure 6 A side view of a breathing mask provided by an embodiment of the application;

[0025] Figure 7 A top view of a breathing mask provided by an embodiment of the application;

[0026] Figure 8 A structural diagram of a card holder provided by an embodiment of the application;

[0027] Figure 9 A plan view of a card holder provided by the embodiment of the present application;

[0028] The reference signs are as follows: 1-fixed plate, 2-first vertical plate, 3-second vertical plate, 4-horizontal plate, 5-locking mechanism, 6-breathing mask, 7-card holder, 8-extension plate, 101-perforation, 102-first baffle, 1021-first through hole, 103-second baffle, 1031-second through hole, 104-notch, 1041-card slot, 105-waist-shaped hole, 106-first accommodating opening, 107-step, 201-first supporting plate, 202-second supporting plate, 2021-sliding block, 2022-second accommodating opening, 301-through hole, 401-mounting hole, 402-quick plug connector mounting hole, 601-first cylinder, 6011-guide hole, 6012-vent hole, 602-second cylinder, 603-arc-shaped slot, 604-push rod, 605-connecting rod, 606-connecting lug, 6061-bolt hole, 701-supporting plate, 702-clamping block. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0030] The core of the present application is to provide an experimental animal fixing device for effectively avoiding brain ischemia of experimental animals and reducing the mortality rate of animals after experiments.

[0031] In order to enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0032] Figure 1 A structural diagram of an experimental animal fixing device provided by the embodiment of the present application, Figure 2 A side view of an experimental animal fixing device provided by the embodiment of the present application, as Figure 1 and Figure 2As shown, the experimental animal fixing device comprises a fixing plate 1, a first vertical plate 2, a second vertical plate 3, a horizontal plate 4 and a locking mechanism 5. The fixing plate 1 is provided with a through hole 101 for a binding belt to pass through, and is used to carry an experimental animal. The first end of the first vertical plate 2 and / or the first end of the second vertical plate 3 is adjustably arranged on the horizontal plate 4 to change the distance between the first vertical plate 2 and the second vertical plate 3. The second end of the first vertical plate 2 is rotationally connected to the first end of the fixing plate 1, and the second end of the second vertical plate 3 is rotationally connected to the second end of the fixing plate 1. The distance between the first end of the fixing plate 1 and the horizontal plate 4 is adjustably arranged, and / or the distance between the second end of the fixing plate 1 and the horizontal plate 4 is adjustably arranged. The locking mechanism 5 is arranged at the first end of the fixing plate 1 and / or the second end of the fixing plate 1, and is used to limit the rotation of the fixing plate 1 relative to the first vertical plate 2 and the second vertical plate 3.

[0033] The number of the through holes 101 on the fixing plate 1 is not specifically limited in the embodiment of the present application. After the experimental animal lies on the fixing plate 1, the experimental animal is fixed by using the binding belt (a magic tape binding belt can be used) passing through the through holes 101. In the embodiment of the present application, the first end of the first vertical plate 2 and / or the first end of the second vertical plate 3 is adjustably arranged on the horizontal plate 4, including the following cases: first, the first end of the first vertical plate 2 is adjustably arranged on the horizontal plate 4, and the first end of the second vertical plate 3 is fixed on the horizontal plate 4; second, the first end of the second vertical plate 3 is adjustably arranged on the horizontal plate 4, and the first end of the first vertical plate 2 is fixed on the horizontal plate 4; third, the first end of the first vertical plate 2 is adjustably arranged on the horizontal plate 4, and the first end of the second vertical plate 3 is also adjustably arranged on the horizontal plate 4. How to achieve the adjustable arrangement is described by taking the first end of the first vertical plate 2 and the horizontal plate 4 as an example. A plurality of threaded holes are arranged on the length direction of the horizontal plate 4, and the first end of the first vertical plate 2 is selectively connected to the threaded holes through a bolt and a nut. In addition, a mounting hole 401 can also be arranged on the horizontal plate 4, and the mounting hole 401 is matched with a bolt to position the horizontal plate 4 at a set position.

[0034] The second end of the first vertical plate 2 is rotationally connected with the first end of the fixed plate 1, and the second end of the second vertical plate 3 is rotationally connected with the second end of the fixed plate 1. The rotational connection can be achieved by a rotating shaft or a hinge. To adjust the distance between the first end of the fixed plate 1 and / or the second end of the fixed plate 1 and the horizontal plate 4, one implementation is that the first vertical plate 2 and / or the second vertical plate 3 are telescopic plates with adjustable length. Another implementation is that the first end of the fixed plate 1 is adjustably arranged on the first vertical plate 2 in terms of height, and / or the second end of the fixed plate 1 is adjustably arranged on the second vertical plate 3 in terms of height. When the inclination of the fixed plate 1 is changed, the angles between the fixed plate 1 and the first vertical plate 2 and between the fixed plate 1 and the second vertical plate 3 will change, so the distance between the first vertical plate 2 and the second vertical plate 3 and the distance between the first end and / or the second end of the fixed plate 1 and the horizontal plate 4 need to be changed. Of course, when the distance between the first vertical plate 2 and the second vertical plate 3 is not changed, if the inclination of the fixed plate 1 is to be changed, the fixed plate 1 needs to be a telescopic plate with adjustable length. Based on the above arrangement, the angles between the fixed plate 1 and the vertical plates (the first vertical plate 2 and the second vertical plate 3) need to be kept unchanged, and a locking mechanism 5 is needed to limit the rotation of the fixed plate 1. The locking mechanism 5 is not limited in the embodiment, and can be a connecting rod. A plurality of connecting rings are arranged on the first vertical plate 2 or the second vertical plate 3 in the length direction. One end of the connecting rod is connected with the fixed plate 1, and the other end of the connecting rod is provided with a hook which is selectively connected with the connecting ring.

[0035] The experimental animal fixing device provided in the embodiment includes a fixed plate 1, a first vertical plate 2, a second vertical plate 3, a horizontal plate 4 and a locking mechanism 5. The fixed plate 1 is provided with a through hole 101 for a binding belt to pass through, and is used to carry an experimental animal. The first end of the first vertical plate 2 and / or the first end of the second vertical plate 3 are adjustably arranged on the horizontal plate 4 to change the distance between the first vertical plate 2 and the second vertical plate 3. The second end of the first vertical plate 2 is rotationally connected with the first end of the fixed plate 1, and the second end of the second vertical plate 3 is rotationally connected with the second end of the fixed plate 1. The distance between the first end of the fixed plate 1 and the horizontal plate 4 is adjustably arranged, and / or the distance between the second end of the fixed plate 1 and the horizontal plate 4 is adjustably arranged. The locking mechanism 5 is arranged at the first end of the fixed plate 1 and / or the second end of the fixed plate 1, and is used to limit the rotation of the fixed plate 1 relative to the first vertical plate 2 and the second vertical plate 3. The experimental animal is fixed on the fixed plate 1 in a lying manner, and the inclination angle of the fixed plate 1 is adjustable. Therefore, the experimental animal can be fixed to meet the needs of most experiments without causing cerebral ischemia of the experimental animal, and the mortality rate of the experimental animal after the experiment is greatly reduced.

[0036] Based on the above embodiment, in the embodiment, the first vertical plate 2 is a telescopic plate with adjustable length, and the second end of the fixed plate 1 is adjustably arranged on the second vertical plate 3 in terms of height.

[0037] The specific structure of the telescopic plate is not limited in the embodiments of the present application. Specifically, the first vertical plate 2 includes a first support plate 201 and a second support plate 202. The first end of the first support plate 201 is connected with the horizontal plate 4, and the second end of the first support plate 201 is provided with a sliding groove. The first end of the second support plate 202 is provided with a sliding block 2021 extending along the length direction of the second support plate 202. The second support plate 202 and the first support plate 201 are slidingly connected through the sliding block 2021 and the sliding groove to change the length of the first vertical plate 2. The second end of the second support plate 202 is rotationally connected with the first end of the fixed plate 1 through a rotating shaft. The length of the first vertical plate 2 is adjusted through the sliding block 2021 and the sliding groove, and the structure is relatively simple and convenient to manufacture.

[0038] The second end of the fixed plate 1 is rotationally connected with the second vertical plate 3. The specific implementation manner is as follows: the second end of the fixed plate 1 is provided with a first baffle 102 and a second baffle 103. The first baffle 102 is provided with a first through hole 1021, and the second baffle 103 is provided with a second through hole 1031. The distance between the first baffle 102 and the second baffle 103 matches the width of the second vertical plate 3. The second vertical plate 3 is provided with a plurality of through holes 301. The through holes 301 are arranged at intervals along the length direction of the second vertical plate 3 and extend along the width direction of the second vertical plate 3. The locking mechanism 5 includes a first bolt and a first nut. The first bolt passes through the first through hole 1021, the through hole 301 and the second through hole 1031 in sequence, and the first nut is threadedly connected with the tail of the first bolt to fix the second vertical plate 3 between the first baffle 102 and the second baffle 103. The first baffle 102 and the second baffle 103 can rotate around the first bolt. The through hole 301 can be a threaded hole with a thread inside.

[0039] Based on the above embodiments, the first vertical plate 2 is a telescopic plate with adjustable length, and the second end of the fixed plate 1 is arranged on the second vertical plate 3 with adjustable height. Of course, the first end of the fixed plate 1 can be arranged on the first vertical plate 2 with adjustable height, and the second end of the fixed plate 1 can be arranged on the second vertical plate 3 with adjustable height. The specific implementation manner of the height-adjustable arrangement can be referred to the above description, which will not be described herein.

[0040] Based on the above embodiment, the first through hole 1021 and the second through hole 1031 are both long circular holes, the length direction of the long circular hole is consistent with the length direction of the fixed plate 1, and the first bolt can move along the length direction of the long circular hole. By setting the first through hole 1021 and the second through hole 1031 as long circular holes, the first bolt can move along the length direction of the long circular hole, the distance between the first vertical plate 2 and the second vertical plate 3 is unchanged, and when the included angle between the fixed plate 1 and the first vertical plate 2 needs to be fine-tuned, the position of the first bolt in the long circular hole can be changed by rotating the fixed plate 1.

[0041] Based on the above embodiment, the first end of the fixed plate 1 or the second end of the fixed plate 1 is provided with a breathing mask 6 for respiratory anesthesia administration. The breathing mask 6 can be clamped on either end of the fixed plate 1 by a clamp.

[0042] The breathing mask 6 of the present application is not limited in particular, and a matching breathing mask 6 can be set according to different test animals. A breathing mask 6 for mice is introduced below, Figure 3 The structure diagram of another experimental animal fixing device provided by the present application, Figure 4 The structure diagram of a breathing mask provided by the present application, Figure 5 The bottom view of a breathing mask provided by the present application, Figure 6 The side view of a breathing mask provided by the present application, Figure 7 The top view of a breathing mask provided by the present application, as Figures 3 to 7 shown, the breathing mask 6 includes a first cylinder 601, a second cylinder 602, an arc-shaped groove 603, a push rod 604, and a connecting rod 605, the bottom surface of the first cylinder 601 is provided with a ventilation hole 6012, the second cylinder 602 is sleeved in the first cylinder 601 through the top opening of the first cylinder 601, the first end of the arc-shaped groove 603 is connected to the bottom in the first cylinder 601 through the bottom opening of the second cylinder 602, the second end of the arc-shaped groove 603 extends out of the first cylinder 601 through the top opening of the second cylinder 602, the side wall of the first cylinder 601 is provided with a guide hole 6011 extending in the axial direction, one end of the push rod 604 is connected to the side wall of the second cylinder 602, the other end of the push rod 604 extends out of the first cylinder 601 through the guide hole 6011, the push rod 604 moves along the guide hole 6011 to change the length of the second cylinder 602 extending out of the first cylinder 601, and the connecting rod 604 is connected to both sides in the arc-shaped groove 603 and is arranged close to the second end of the arc-shaped groove 603.

[0043] The ventilation hole 6012 in the embodiment of the present application can be connected with the connecting head at one end of the pipeline. Specifically, the connecting head is inserted into the ventilation hole 6012, and the pipeline can be used to deliver anesthetic to the first cylinder 601. The other end of the pipeline can be connected with a quick connector. The quick connector is a pipeline connector capable of achieving quick connection and disconnection, and can be conveniently and quickly connected with and disconnected from the pipeline of the anesthetic tank. The quick connector can be arranged on the horizontal plate 4 through the quick connector mounting hole 402 on the horizontal plate 4. Further, if the breathing mask 6 is arranged at the first end of the fixed plate 1, in order to avoid the breathing mask 6 affecting the relative rotation between the fixed plate 1 and the second support plate 202, as shown in Figure 3 , a first accommodating opening 106 is arranged at the first end of the fixed plate 1, and a second accommodating opening 2022 is arranged at the second end of the second support plate 202. The first accommodating opening 106 and the second accommodating opening 2022 are used to avoid the breathing mask 6 when the fixed plate 1 and the second support plate 202 rotate relative to each other. Based on the above embodiment, the length of the breathing mask 6 arranged on the fixed plate 1 can be adjusted, and the distance between the breathing mask 6 and the mouth of the experimental animal can be conveniently adjusted. Specifically, as shown in Figures 3 to 7 , the first cylinder 601 is provided with connecting ears 606 on both sides, and the connecting ears 606 are provided with bolt holes 6061. The fixed plate 1 is provided with a waist-shaped hole 105 on both sides of one end of the breathing mask 6. The tail of the second bolt passes through the bolt hole 6061 and the waist-shaped hole 105 in sequence, and the second nut is threadedly connected with the tail of the second bolt. The second bolt can slide along the length direction of the waist-shaped hole 105, and the length direction of the waist-shaped hole 105 is consistent with the length direction of the fixed plate 1. Specifically, the distance between the breathing mask 6 and the mouse mouth is adjusted, the second nut is tightened, the second bolt is fixed in the waist-shaped hole 105, the breathing mask 6 is fixed on the fixed plate 1, the teeth of the mouse are hooked on the connecting rod 605 in the arc-shaped groove 603, the push rod 604 is pushed, the second cylinder 602 is pushed out of the first cylinder 601, the second cylinder 602 covers the mouth of the mouse, and the mouse is anesthetized by introducing anesthetic into the first cylinder 601.

[0044] Further, as shown in Figure 3 , the side of the fixed plate 1 at one end of the breathing mask 6 is further provided with a step 107, so as to avoid the B-ultrasound probe from colliding with the fixed plate 1 when the B-ultrasound probe is close to the experimental animal.

[0045] Based on the above embodiment, the first side of the fixed plate 1 is provided with a notch 104, and the notch 104 is used to expose the part to be detected of the experimental animal. The notch 104 can be arranged at the middle of the fixed plate 1. Alternatively, both ends of the notch 104 can be arranged at the perforations 101.

[0046] Based on the above embodiment, Figure 8 a structure diagram of a clamping bracket provided in the embodiment of the present application is shown in Figure 9A plan view of a card holder provided by an embodiment of the present application; as shown in Figure 3 、 Figure 8 and Figure 9 An embodiment of the present application further comprises a card holder 7, the card holder 7 comprises a support plate 701 and a card block 702 connected with the support plate 701, the side wall of the notch is provided with a clamping groove 1041, the support plate 701 is detachably connected with the fixing plate 1 through the card block 702 and the clamping groove 1041, the support plate 701 is provided with a through hole 101, the second side edge of the fixing plate 1 is connected with an extension plate 8, the extension plate 8 is provided with a plurality of through holes 101 arranged along the length direction of the fixing plate 2.

[0047] The number of the card holder 7 is not limited in the embodiment of the present application, and a plurality of card holders 7 with different sizes can be included, and the corresponding number or size of the card holder 7 can be selected to be connected with the fixing plate 1 according to the body size of the experimental animal and the position of the part to be detected, and the support force of the fixing plate 1 on the experimental animal can be increased by setting the card holder 7 detachably connected with the fixing plate 2. In addition, the through holes 101 are arranged on the card holder 7 and the extension plate 8, and the purpose is to meet the binding of different parts of the experimental animal.

[0048] The experimental animal fixing device provided by the present application is described in detail above. The embodiments in the specification are described in a progressive manner, and each embodiment mainly explains the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other. It should be pointed out that for ordinary skilled in the art, without departing from the principle of the present application, some improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

[0049] It should be further noted that in the present specification, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitation, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

Claims

1. A device for restraining laboratory animals, characterized in that, include: Fixed plate (1), first upright plate (2), second upright plate (3), horizontal plate (4) and locking mechanism (5); The fixing plate (1) is provided with a through hole (101) for the strap to pass through. The fixing plate (1) is used to support experimental animals. The first end of the first upright plate (2) and / or the first end of the second upright plate (3) are adjustablely disposed on the horizontal plate (4) to change the distance between the first upright plate (2) and the second upright plate (3). The second end of the first upright plate (2) is rotatably connected to the first end of the fixing plate (1). The second end of the second upright plate (3) is rotatably connected to the second end of the fixing plate (1). The distance between the first end of the fixing plate (1) and the horizontal plate (4) is adjustable, and / or the distance between the second end of the fixing plate (1) and the horizontal plate (4) is adjustable. The locking mechanism (5) is disposed at the first end of the fixing plate (1) and / or the second end of the fixing plate (1). The locking mechanism (5) is used to restrict the rotation of the fixing plate (1) relative to the first upright plate (2) and the second upright plate (3).

2. The experimental animal restraint device according to claim 1, characterized in that, The first upright plate (2) is a telescopic plate with adjustable length, and the second end of the fixed plate (1) is set on the second upright plate (3) with adjustable height.

3. The experimental animal restraint device according to claim 2, characterized in that, The second end of the fixing plate (1) is provided with a first baffle (102) and a second baffle (103). The first baffle (102) is provided with a first through hole (1021), and the second baffle (103) is provided with a second through hole (1031). The distance between the first baffle (102) and the second baffle (103) matches the width of the second upright plate (3). The second upright plate (3) is provided with a plurality of through holes (301). The plurality of through holes (301) are spaced apart along the length direction of the second upright plate (3). The through holes (301) extend along the width direction of the second upright plate (3). The locking mechanism (5) includes a first bolt and a first nut. The first bolt passes through the first through hole (1021), the through hole (301) and the second through hole (1031) in sequence. The first nut is threaded to the tail of the first bolt to connect the second upright plate (3) between the first baffle (102) and the second baffle (103).

4. The experimental animal restraint device according to claim 3, characterized in that, The first upright plate (2) includes a first support plate (201) and a second support plate (202). The first end of the first support plate (201) is connected to the horizontal plate (4). The second end of the first support plate (201) is provided with a sliding groove. The first end of the second support plate (202) is provided with a slider (2021). The slider (2021) extends along the length direction of the second support plate (202). The second support plate (202) and the first support plate (201) are slidably connected through the slider (2021) and the sliding groove to change the length of the first upright plate (2). The second end of the second support plate (202) is rotatably connected to the first end of the fixed plate (1) through a rotating shaft.

5. The experimental animal restraint device according to claim 3, characterized in that, Both the first through hole (1021) and the second through hole (1031) are elongated holes, and the length direction of the elongated holes is consistent with the length direction of the fixing plate (1). The first bolt can move along the length direction of the elongated holes.

6. The experimental animal restraint device according to claim 1, characterized in that, A respiratory mask (6) for administering respiratory anesthesia is provided at the first end or the second end of the fixing plate (1).

7. The experimental animal restraint device according to claim 6, characterized in that, The breathing mask (6) includes a first cylinder (601), a second cylinder (602), an arc-shaped groove (603), a push rod (604), and a connecting rod (605). The bottom surface of the first cylinder (601) is provided with a ventilation hole (6012). The second cylinder (602) is fitted inside the first cylinder (601) through the top opening of the first cylinder (601). The first end of the arc-shaped groove (603) is connected to the bottom of the first cylinder (601) through the bottom opening of the second cylinder (602). The second end of the arc-shaped groove (603) extends out of the first cylinder (601) through the top opening of the second cylinder (602). In addition, the side wall of the first cylinder (601) is provided with a guide hole (6011) extending in the axial direction. One end of the push rod (604) is connected to the side wall of the second cylinder (602), and the other end of the push rod (604) extends out of the first cylinder (601) through the guide hole (6011). The push rod (604) moves along the guide hole (6011) to change the length of the second cylinder (602) extending out of the first cylinder (601). The connecting rod (605) is connected to both sides in the arc groove (603), and the connecting rod (605) is set near the second end of the arc groove (603).

8. The experimental animal restraint device according to claim 7, characterized in that, The first cylindrical body (601) is provided with connecting ears (606) on both sides respectively. The connecting ears (606) are provided with bolt holes (6061). The fixed plate (1) is provided with waist-shaped holes (105) on both sides of one end of the breathing mask (6). The tail of the second bolt passes through the bolt hole (6061) and the waist-shaped hole (105) in sequence. The second nut is threadedly connected to the tail of the second bolt. The second bolt can slide along the length direction of the waist-shaped hole (105). The length direction of the waist-shaped hole (105) is consistent with the length direction of the fixed plate (1).

9. The experimental animal restraint device according to any one of claims 1 to 8, characterized in that, The first side of the fixing plate (1) has a notch (104) for exposing the test site of the experimental animal. Both ends of the notch (104) have the perforation (101).

10. The experimental animal restraint device according to claim 9, characterized in that, It also includes a card holder (7), which includes a support plate (701) and a card block (702) connected to the support plate (701). The side wall of the recess (104) is provided with a card groove (1041). The support plate (701) is detachably connected to the fixing plate (1) through the card block (702) and the card groove (1041). The support plate (701) is provided with the through hole (101). The second side of the fixing plate (1) is connected to an extension plate (8). The extension plate (8) is provided with a plurality of through holes (101) spaced apart along the length direction of the fixing plate (1).

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