Rat caudal vein blood sampling fixing device

Abstract

The utility model relates to the technical field of animal vein blood sampling, in particular to a rat caudal vein blood sampling fixing device which comprises a limiting cover and an adjusting assembly, the lower end of the limiting cover is connected with an installation strip, and the adjusting assembly used for limiting rats of different body types is arranged in the middle of the limiting cover. The adjusting assembly comprises an adjusting hole, an adjusting rod, an adjusting plate, a clamping groove and a limiting plate, the adjusting rod is arranged in the adjusting hole, the lower end of the adjusting rod is connected with the adjusting plate, the clamping groove is formed in the outer surface of the adjusting rod, and the limiting plate is installed on the outer side of the clamping groove in a clamped mode; the rat fixing device has the advantages that the limiting cover is slidably mounted on the fixing seat to form a cylinder to fix and limit rats, operation is easy and convenient, splitting and cleaning are easy, the adjusting rods move up and down in the adjusting holes to drive the adjusting plates to move up and down, and rats of different body types can be fixed and limited by combining the adjusting plates and the fixing seat at different positions; and the limiting plates are clamped in the clamping grooves in different positions to play a role in limiting the adjusting rod.

Description

Technical Field

[0001] The utility model relates to the technical field of animal venous blood sampling, in particular to a rat tail vein blood sampling fixing device. Background Art

[0002] Rats are commonly used experimental animals in scientific research experiments. They are widely used in various medical experiments and scientific research. They are one of the most commonly used animal species in modern medical laboratories. The blood collection methods of experimental rats are divided into tail vein blood collection, orbital venous plexus blood collection and decapitation blood collection according to the amount of blood collected. Among them, the rat tail vein blood collection method is mainly used in the scene of small amount of blood collection, that is, the rat is placed in a nearly cylindrical fixed container, and the rat tail is passed through the through hole at the bottom of the cylinder. The tail is immersed in 45-50 degree warm water for several minutes to make the vein congested, wipe dry, and then wipe with alcohol cotton balls for disinfection; cut off about 0.2-0.3cm of the tail tip, wipe off the first drop of blood, and then use a capillary to quantitatively absorb the tail blood. After the blood collection is completed, use cotton balls to press and stop the bleeding.

[0003] In the prior art, the utility model with application number CN202021352709.5 discloses a fixing device for venous blood sampling in rats, which relates to the technical field of animal venous blood sampling. The fixing device for venous blood sampling in rats provided by the utility model is easy to obtain materials and make, can be reused, and is easy to clean and convenient to wipe and disinfect with alcohol, and has great convenience; the fixing device for venous blood sampling in rats is convenient to adjust the inclination angle of the container, making it easier to collect blood from rats; the fixing device for venous blood sampling in rats can give rats limited space to move, and the rats should not be oppressed, nor will it affect blood collection; the fixing device for venous blood sampling in rats has a simple structure, good use effect, and good economy and practicality.

[0004] However, when the rats are drawing blood, they become emotionally agitated due to the pain, causing their bodies to shake violently, affecting the blood drawing and causing blood to splatter. Utility Model Content

[0005] The utility model aims to provide a rat tail vein blood sampling and fixing device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rat tail vein blood sampling and fixing device, comprising a limiting cover and an adjusting component, the lower end of the limiting cover is connected to a mounting strip, the adjusting component for limiting the position of rats of different sizes is arranged in the middle of the limiting cover, and the adjusting component comprises an adjusting hole, an adjusting rod, an adjusting plate, a card slot and a limiting plate, an adjusting rod is arranged inside the adjusting hole, and the lower end of the adjusting rod is connected to the adjusting plate, the outer surface of the adjusting rod is provided with a card slot, and the outer side of the card slot is engaged and installed with the limiting plate.

[0007] Preferably, a mounting groove is arranged outside the mounting bar, and a fixing seat is arranged outside the mounting groove.

[0008] Preferably, a clamping ring is connected to the left end of the fixing seat, and a hood is mounted on the left end of the clamping ring, and a breathing hole is arranged on the hood.

[0009] Preferably, a pull-out hole is provided inside the fixing seat, and a fixing plate is installed on the side of the fixing seat.

[0010] Preferably, a pull-out rod is provided inside the fixing seat, and the pull-out hole and the pull-out rod are slidably connected.

[0011] Preferably, the end of the pull rod is connected to an auxiliary component for assisting the fixation of the tail, and two pull rods are symmetrically arranged about the horizontal center axis of the auxiliary component.

[0012] Preferably, the auxiliary component comprises an auxiliary plate and a Velcro patch, and the Velcro patch is bonded and connected to the surface of the auxiliary plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The rat tail vein blood sampling fixing device proposed by the utility model is slidably installed on the fixing seat through a limiting cover to form a cylinder to fix and limit the rat. The operation is simple and easy to disassemble and clean. The adjustment rod moves up and down in the adjustment hole to drive the adjustment plate to move up and down. The combination of the adjustment plate and the fixing seat at different positions can fix and limit rats of different sizes. The limiting plate is engaged in the card slots at different positions to limit the adjustment rod.

[0015] The hood is snapped onto the clamping ring for easy operation; the pull-out hole is used for pulling out and moving the pull-out rod; the fixing plate enables the fixing seat to be fixed on the desktop to increase stability during blood collection; the auxiliary plate can adjust the distance between it and the fixing seat through the pull-out rod; the Velcro patch attached to the auxiliary plate can assist in limiting the rat's tail and increase the convenience of blood collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0018] Figure 3 This is a schematic diagram of the auxiliary component structure of the utility model.

[0019] In the figure: 1. limit cover; 2. mounting slot; 3. mounting strip; 4. fixing seat; 5. adjustment component; 501. adjustment hole; 502. adjustment rod; 503. adjustment plate; 504. slot; 505. limit plate; 6. snap ring; 7. head cover; 8. pull-out hole; 9. fixing plate; 10. pull-out rod; 11. auxiliary component; 1101. auxiliary plate; 1102. Velcro patch. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] See also Figure 1 The utility model provides a technical solution: a rat tail vein blood sampling fixing device, comprising a limiting cover 1 and an adjusting component 5, the lower end of the limiting cover 1 is connected with a mounting strip 2, the limiting cover 1 is slidably mounted on a fixing seat 4 to form a cylinder to fix and limit the rat, the operation is simple and easy to disassemble and clean, a mounting groove 3 is arranged on the outside of the mounting strip 2, and a fixing seat 4 is arranged on the outside of the mounting groove 3, a clamping ring 6 is connected to the left end of the fixing seat 4, and a head cover 7 is clamped and installed on the left end of the clamping ring 6, the head cover 7 is clamped on the clamping ring 6 for easy operation, and a breathing hole is arranged on the head cover 7 to facilitate the breathing of the rat.

[0023] Embodiment 2

[0024] like Figure 2 As shown, the adjustment component 5 for limiting the position of rats of different sizes is arranged in the middle of the limiting cover 1, and the adjustment component 5 includes an adjustment hole 501, an adjustment rod 502, an adjustment plate 503, a slot 504 and a limiting plate 505. The adjustment rod 502 is arranged inside the adjustment hole 501. The adjustment rod 502 moves up and down in the adjustment hole 501 to drive the adjustment plate 503 to move up and down, and the lower end of the adjustment rod 502 is connected to the adjustment plate 503. The combination of the adjustment plate 503 adjusted to different positions and the fixing seat 4 can fix and limit rats of different sizes. The outer surface of the adjustment rod 502 is provided with a slot 504, and the outer side of the slot 504 is engaged with the limiting plate 505. The limiting plate 505 is engaged in the slot 504 at different positions to limit the adjustment rod 502.

[0025] Embodiment 3

[0026] like Figure 3 As shown, a pull-out hole 8 is provided inside the fixing seat 4, and the pull-out hole 8 is used for pulling and moving the pull-out rod 10, and a fixing plate 9 is installed on the side of the fixing seat 4, and the fixing plate 9 enables the fixing seat 4 to be fixed on the desktop, thereby increasing the stability during blood collection, and a pull-out rod 10 is provided inside the fixing seat 4, and the pull-out hole 8 and the pull-out rod 10 are slidably connected, and an auxiliary component 11 for assisting tail fixation is connected to the end of the pull-out rod 10, and two pull-out rods 10 are symmetrically arranged about the horizontal center axis of the auxiliary component 11, and the auxiliary component 11 includes an auxiliary plate 1101 and a Velcro patch 1102, and the auxiliary plate 1101 can adjust the distance between itself and the fixing seat 4 through the pull-out rod 10, and the Velcro patch 1102 is attached to the surface of the auxiliary plate 1101, and the Velcro patch 1102 attached to the auxiliary plate 1101 can assist in limiting the position of the rat's tail, thereby increasing the convenience of blood collection.

[0027] In actual use, according to the body length of the rat, a suitable number of limit covers 1 are selected and slidably installed on the fixing seat 4, so that the limit cover 1 and the fixing seat 4 form a cylindrical shape to play a preliminary limit and fixation role for the rat. Then, according to the body size of the rat, the adjustment rod 502 is controlled to drive the adjustment plate 503 to move downward in the adjustment hole 501 until the adjustment plate 503 and the rat body are in contact. The combination of the adjustment plate 503 and the fixing seat 4 in different positions can be used to fix and limit rats of different body sizes. After the position is adjusted, the limit plate 505 is moved downward. The rat is engaged in the slot 504 outside the adjusting rod 502 for limiting the position. When drawing blood, the head cover 7 is engaged on the clamping ring 6 to cover the rat's head. The rat's tail is then placed on the auxiliary plate 1101, and the pull rod 10 is pulled according to the blood drawing position to move the auxiliary plate 1101. The Velcro patch 1102 is then pasted on the auxiliary plate 1101 to assist in limiting the position of the rat's tail, thereby increasing the convenience of blood drawing. If the rat is emotionally excited, the device can be fixed on the desktop through the fixing plate 9 to increase stability during blood drawing.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rat tail vein blood sampling and fixing device, comprising a limiting cover (1) and an adjustment component (5), characterized in that: The lower end of the limiting cover (1) is connected to a mounting strip (2). The adjusting component (5) for limiting the position of rats of different sizes is arranged in the middle of the limiting cover (1), and the adjusting component (5) comprises an adjusting hole (501), an adjusting rod (502), an adjusting plate (503), a clamping groove (504) and a limiting plate (505). The adjusting hole (501) is provided with an adjusting rod (502), and the lower end of the adjusting rod (502) is connected to the adjusting plate (503). The outer surface of the adjusting rod (502) is provided with a clamping groove (504), and the outer side of the clamping groove (504) is clamped and mounted with the limiting plate (505).

2. A rat tail vein blood sampling and fixing device according to claim 1, characterized in that: The outside of the installation strip (2) is provided with an installation groove (3), and the outside of the installation groove (3) is provided with a fixing seat (4).

3. A rat tail vein blood sampling and fixing device according to claim 2, characterized in that: The left end of the fixing seat (4) is connected with a clamping ring (6), and the left end of the clamping ring (6) is clamped and installed with a head cover (7), and a breathing hole is arranged on the head cover (7).

4. A rat tail vein blood sampling and fixing device according to claim 2, characterized in that: A pull-out hole (8) is provided inside the fixing seat (4), and a fixing plate (9) is installed on the side of the fixing seat (4).

5. A rat tail vein blood sampling and fixing device according to claim 2, characterized in that: A draw-out rod (10) is provided inside the fixing seat (4), and the draw-out hole (8) and the draw-out rod (10) are slidably connected.

6. A rat tail vein blood sampling and fixing device according to claim 5, characterized in that: The end of the pull rod (10) is connected to an auxiliary component (11) for assisting the fixation of the tail, and two pull rods (10) are symmetrically arranged about the horizontal center axis of the auxiliary component (11).

7. A rat tail vein blood sampling and fixing device according to claim 6, characterized in that: The auxiliary component (11) comprises an auxiliary plate (1101) and a Velcro patch (1102), and the Velcro patch (1102) is bonded to the surface of the auxiliary plate (1101).

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