CN212037817U

CN212037817U - Fixing device for mouse tail intravenous injection

Info

Publication number: CN212037817U
Application number: CN202020242123.7U
Authority: CN
Inventors: 王斌; 向琳; 于晖; 屈依丽
Original assignee: Sichuan University
Current assignee: Sichuan University
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2020-12-01
Anticipated expiration: 2030-03-03

Abstract

The utility model discloses a fixing device for mouse tail intravenous injection, which comprises a mounting plate, a mouse body fixing part and a mouse tail fixing part are arranged above the mounting plate, the mouse body fixing part comprises a fixing cylinder, a plurality of slots are arranged above the fixing cylinder at intervals, inserting and extracting inserting plates are arranged in the slots in a matching way, one end of the fixing cylinder is provided with an opening and is detachably provided with a tail cover, and the middle part of the tail cover is provided with a tail hole; mouse body portion adopts the picture peg to insert the slot and carry on spacingly to mouse body portion after arranging the fixed section of thick bamboo in, and mouse afterbody adopts the mouse tail fixed part to carry on spacingly to the mouse tail after passing the tail hole. The utility model discloses can not have great tension under the condition that well mouse tail straightens, and then be difficult for coming off from the rat tail clamp, the stable normal clear of the injection process of being convenient for.

Description

Fixing device for mouse tail intravenous injection

Technical Field

The utility model relates to a fixing device for mouse tail intravenous route.

Background

In order to immobilize the mouse during tail vein injection experiments, researchers often employ crude methods such as holding the mouse in a beaker or other container, exposing only the tail portion. During injection, one hand pulls the tail of the mouse, and the other hand holds the syringe for injection. The method is simple and crude, the mouse can struggle in the container, the tail shakes continuously, the needle head is difficult to enter the blood vessel accurately, or the needle head slides out of the blood vessel after entering the blood vessel. In addition, it is usually inconvenient to perform operations such as disinfecting, kneading the tail to dilate the blood vessel before injection, and then to take up the syringe for injection.

On this basis, document CN205494074U provides an auxiliary device for mouse tail vein injection, which is used to clamp a mouse to be injected through a transparent tube, the mouse tail is extended out after passing through a guide hole of a tube cover, a laboratory technician pulls the mouse tail, the mouse can escape from a ventilation hole in front of the mouse, the tail is straightened, and the guide hole can also be used as a tourniquet to fill the tail vein of the mouse. Although the tail can be straightened by utilizing the instinct of the mouse, the tail of the mouse needs to be clamped by a user more forcefully due to the tendency of the mouse to run forwards, the tail falls off slightly or carelessly, and the tail of the mouse needs to be grasped again; particularly, the falling-off occurs in the injection process, which causes great damage to mice; and the mouse tail needs manual clamping by hands, which is not beneficial to the operation of a user.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fixing device for mouse tail intravenous route.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a fixing device for mouse tail intravenous injection comprises a mounting plate, wherein a mouse body fixing part and a mouse tail fixing part are arranged above the mounting plate, the mouse body fixing part comprises a fixing cylinder, a plurality of slots are arranged above the fixing cylinder at intervals, inserting plates capable of being inserted and pulled out are arranged in the slots in a matched mode, one end of the fixing cylinder is provided with an opening and is detachably provided with a tail cover, and the middle of the tail cover is provided with a tail hole; mouse body portion adopts the picture peg to insert the slot and carry on spacingly to mouse body portion after arranging the fixed section of thick bamboo in, and mouse afterbody adopts the mouse tail fixed part to carry on spacingly to the mouse tail after passing the tail hole.

Further, mouse body fixed part still includes the baffle, baffle slidable mounting is in fixed section of thick bamboo, and one sliding opening has been seted up to fixed section of thick bamboo upper wall, and it is equipped with the slider to slide in the sliding opening, slider and baffle fixed connection, and fixed section of thick bamboo top is equipped with first threaded rod, and the screw thread has cup jointed the rotating sleeve pipe on the first threaded rod, and the rotating sleeve pipe passes through the bearing to be connected with the slider, and the sage fixed part includes the rat tail clamp and installs the pole, and installation pole slidable mounting is on the mounting panel, and the rat tail clamp is decided and is installed the tip.

Preferably, the tail cover is sleeved on the end of the fixed barrel in a threaded mode.

Preferably, the caliber of the tail hole is less than 1 cm, and the width of the sliding opening is less than 1 cm.

Preferably, the inner ring of the bearing is fixedly sleeved on the rotating sleeve, and the outer ring is fixedly connected with the sliding block.

Preferably, the length of the rotating sleeve is greater than that of the bearing, and anti-skid grains are arranged on the outer walls of the two ends of the rotating sleeve.

Preferably, a plurality of vent holes are formed in one end, far away from the tail cover, of the fixed cylinder.

Preferably, a threaded hole is formed in the mounting rod, a second threaded rod is mounted in the threaded hole, fixed blocks are arranged on two sides of the mounting rod, an adjusting wheel is rotatably mounted on one fixed block, and one end of the second threaded rod is fixedly connected with the adjusting wheel.

Preferably, one end of the mounting rod close to the mounting plate is rotatably provided with a rotating wheel, and the rotating wheel is in rolling contact with the mounting plate.

Preferably, the lower side of the inserting plate is concavely provided with an arc-shaped clamping groove, and a rubber pad is bonded on the wall of the clamping groove.

When the utility model is used, a user firstly puts a mouse into the fixed cylinder, so that the tail of the mouse passes through the tail hole, then the tail cover is arranged on the fixed cylinder, and then the inserting plate is inserted into the inserting groove, so that the lower side of the inserting plate presses the body of the mouse through the clamping groove, further the struggling of the mouse can be limited, the struggling amplitude of the mouse is greatly reduced, and the injection is conveniently completed by the user; the position of the partition plate can be adjusted according to the body type of the mouse, so that the space where the mouse can struggle is compressed, the struggle of the mouse is further limited, the distance between the partition plate and the tail cover is the optimal length of the mouse body, the effect of fixedly limiting the body of the mouse is achieved, and the movement of the mouse is limited; the tail of the mouse passes through the tail hole and is straightened, and the tail end of the mouse is clamped by a tail clip, so that the mouse is convenient for a user to inject; due to the effects of the partition plate and the inserting plate, a mouse cannot freely run and struggle, so that the mouse cannot have larger tension under the condition that the tail of the mouse is straightened, and further the mouse is not easy to fall off from the tail clamp, and the stable and normal operation of the injection process is facilitated; meanwhile, the mouse tail clip is used without being manually grabbed by a user, so that the mouse tail clip is convenient for the user to inject. In order to adapt to mice with different tail lengths, the position of the tail clip can be adjusted, a specific user drives the second threaded rod to rotate by stirring the adjusting wheel, so that the mounting rod slides on the mounting plate, the position of the tail clip can be adjusted, the tail clip is adapted to mice with different lengths, and the tail clip has high applicability.

Drawings

FIG. 1 is a front cross-sectional structural view of a fixing device for mouse tail vein injection in an embodiment;

FIG. 2 is a schematic view of the structure at A in FIG. 1;

fig. 3 is a schematic cross-sectional structure of the fixing device for mouse tail intravenous injection in the embodiment at the plug board.

In the figure: the device comprises a mounting plate 1, a fixing barrel 2, a support column 3, a tail cover 4, a tail clamp 5, a partition plate 6, a vent hole 7, a tail hole 8, a sliding opening 9, a sliding block 10, a first threaded rod 11, a rotating sleeve 12, a bearing 13, a mounting rod 14, a fixing block 15, an adjusting wheel 16, a second threaded rod 17, a rotating wheel 18, a slot 19 and a plugboard 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. It will be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Examples

Referring to fig. 1-3, a fixing device for mouse tail intravenous injection comprises a mounting plate 1, a mouse body fixing part and a mouse tail fixing part are mounted above the mounting plate 1, the mouse tail fixing part is arranged on one side of the mouse body fixing part, the mouse body fixing part comprises a fixing cylinder 2 and a partition plate 6, the fixing cylinder 2 is used for placing a mouse, a plurality of slots 19 are formed in the upper part of the fixing cylinder 2 at equal intervals, inserting plates 20 are inserted into the slots 19 and used for pressing the mouse and preventing the mouse from struggling, the inserting plates 20 are clamped in the slots 19 in an interference manner and can be detachably mounted, a user can conveniently insert the inserting plates 20 into the appropriate slots 19 according to the body length of the mouse, in order to achieve better mouse pressing effect, arc-shaped clamping grooves are concavely formed in the lower side of the inserting plates 20, and rubber pads are bonded on the;

the partition plate 6 is used for limiting the running of a mouse, the fixed cylinder 2 is fixedly arranged on the mounting plate 1 through the support column 3, two ends of the support column 3 are respectively fixedly connected with the fixed cylinder 2 and the mounting plate 1, one end of the fixed cylinder 2, which is close to a rat tail fixing part, is provided with an opening and is detachably provided with the tail cover 4, concretely, the tail cover 4 is in threaded sleeve connection with the end part of the fixed cylinder 2, the middle part of the tail cover 4 is provided with a tail hole 8 for penetrating a rat tail, the caliber of the tail hole 8 is less than 1 cm, the partition plate 6 is vertically arranged and is slidably arranged in the fixed cylinder 2, the area of the partition plate 6 is slightly smaller than the cross section in the fixed cylinder 2 to be optimal, the upper wall of the fixed cylinder 2 is provided with a sliding opening 9, the width of the sliding opening 9 is less than 1 cm, a sliding block 10 is arranged in the sliding opening 9, the sliding block 10 is fixedly connected with the partition plate 6, a first threaded, first threaded rod 11 is gone up the screw thread and has been cup jointed and has been rotated sleeve pipe 12, it is connected with slider 10 to rotate sleeve pipe 12 through bearing 13, and is concrete, the fixed cover of inner ring of bearing 13 is established on rotating sleeve pipe 12, outer loop and slider 10 fixed connection, for the convenience of the rotatory rotating sleeve pipe 12 of user, the length of rotating sleeve pipe 12 is greater than bearing 13, and be provided with anti-skidding line on the both ends outer wall, for the inside and outside circulation of air of increase fixed cylinder 2, a plurality of air vents 7 have been seted up to the one end that tail-hood 4 was kept away from to.

The rat tail fixing part comprises a rat tail clamp 5 and a mounting rod 14, the mounting rod 14 is slidably mounted on a mounting plate 1, the rat tail clamp 5 is fixedly mounted at the end part of the mounting rod 14, the height of the rat tail clamp 5 is the same as that of a tail hole 8, a threaded hole is formed in the mounting rod 14, a second threaded rod 17 is mounted in the threaded hole, the second threaded rod 17 is perpendicular to the mounting rod 14 and is parallel to a fixed cylinder 2, fixed blocks 15 are arranged on two sides of the mounting rod 14, the fixed blocks 15 are fixedly connected on the mounting plate 1, a rotating groove is formed in the end part, far away from the mounting plate 1, of one fixed block 15, an adjusting wheel 16 is rotatably mounted in the rotating groove, one end of the second threaded rod 17 penetrates into the rotating groove and is fixedly connected with the middle part of the adjusting wheel 16, the other end of the second threaded rod is rotatably connected on the other fixed, the turning wheel 18 is in rolling contact with the mounting plate 1.

When the injection device is used, a mouse is placed into the fixed cylinder 2, the tail of the mouse penetrates through the tail hole 8, the tail cover 4 is installed on the fixed cylinder 2, and the inserting plate 20 is inserted into the inserting groove 19, so that the body of the mouse is pressed by the lower side of the inserting plate 20 through the clamping groove, the struggling of the mouse can be limited, the struggling amplitude of the mouse is greatly reduced, and the injection can be completed by a user conveniently; the position of the partition board 6 can be adjusted according to the body type of the mouse, so that the space where the mouse can struggle is compressed, the struggle of the mouse is further limited, specifically, the rotating sleeve 12 is rotated, the rotating sleeve 12 is sleeved on the first threaded rod 11 in a threaded manner, the rotating sleeve 12 moves towards one side, the sliding block 10 is driven by the bearing 13 to slide in the sliding opening 9, the partition board 6 moves towards one side of the mouse in the fixed cylinder 2, the distance between the partition board 6 and the tail cover 4 is the optimal mouse body length, the effect of fixedly limiting the body of the mouse is achieved, and the movement of the mouse is limited; the tail of the mouse passes through the tail hole 8 and is straightened, and the tail end of the mouse is clamped by a tail clip 5, so that the mouse is convenient for a user to inject; in order to adapt to mice with different tail lengths, the position of the tail clip 5 can be adjusted, and a specific user can drive the second threaded rod 17 to rotate by dialing the adjusting wheel 16, so that the mounting rod 14 slides on the mounting plate 1, and the position of the tail clip 5 can be adjusted.

Claims

1. The utility model provides a fixing device for mouse tail intravenous route, includes mounting panel (1), and mounting panel (1) top is equipped with mouse body fixed part and tail fixed part, its characterized in that: the mouse body fixing part comprises a fixing barrel (2), a plurality of inserting grooves (19) are formed in the upper portion of the fixing barrel (2) at intervals, inserting plates (20) capable of being inserted and drawn out are arranged in the inserting grooves (19) in a matched mode, one end of the fixing barrel (2) is provided with an opening and a tail cover (4) is detachably mounted on the end of the fixing barrel, and a tail hole (8) is formed in the middle of the tail cover (4); mouse body portion adopts picture peg (20) to insert slot (19) and carries on spacingly to mouse body portion after arranging fixed section of thick bamboo (2) in, and mouse afterbody adopts the mouse tail fixed part to carry on spacingly to the mouse tail after passing tail hole (8).

2. The fixation device for mouse caudal intravenous injection of claim 1, wherein: mouse body fixed part still includes baffle (6), baffle (6) slidable mounting is in fixed section of thick bamboo (2), one sliding opening (9) have been seted up to fixed section of thick bamboo (2) upper wall, it is equipped with slider (10) to slide in sliding opening (9), slider (10) and baffle (6) fixed connection, fixed section of thick bamboo (2) top is equipped with first threaded rod (11), threaded sleeve (12) have been gone up in first threaded rod (11), rotating sleeve (12) are connected with slider (10) through bearing (13), the rat tail fixed part includes that the rat tail presss from both sides (5) and installation pole (14), installation pole (14) slidable mounting is on mounting panel (1), the rat tail presss from both sides the tip of (5) fixed mounting in installation pole (14).

3. The fixture for tail vein injection of mice according to claim 1 or 2, wherein: the tail cover (4) is sleeved at the end part of the fixed cylinder (2) in a threaded manner.

4. The fixation device for mouse caudal intravenous injection of claim 2, wherein: the caliber of the tail hole (8) is less than 1 cm, and the width of the sliding opening (9) is less than 1 cm.

5. The fixation device for mouse caudal intravenous injection of claim 2, wherein: the inner ring of the bearing (13) is fixedly sleeved on the rotating sleeve (12), and the outer ring is fixedly connected with the sliding block (10).

6. The fixation device for mouse caudal intravenous injection of claim 2, wherein: the length of the rotating sleeve (12) is larger than that of the bearing (13), and the outer walls of the two ends of the rotating sleeve are provided with anti-skid grains.

7. The fixation device for mouse caudal intravenous injection of claim 2, wherein: a plurality of vent holes (7) are formed in one end, far away from the tail cover (4), of the fixed cylinder (2).

8. The fixation device for mouse caudal intravenous injection of claim 2, wherein: threaded holes are formed in the mounting rods (14), second threaded rods (17) are mounted in the threaded holes, fixed blocks (15) are arranged on two sides of the mounting rods (14), an adjusting wheel (16) is mounted on one fixed block (15) in a rotating mode, and one end of each second threaded rod (17) is fixedly connected with the adjusting wheel (16).

9. The fixation device for mouse caudal intravenous injection of claim 2, wherein: one end of the mounting rod (14) close to the mounting plate (1) is rotatably provided with a rotating wheel (18), and the rotating wheel (18) is in rolling contact with the mounting plate (1).

10. The holding device for a caudal intravenous injection of a mouse according to any one of claims 4-9, wherein: the lower side of the inserting plate (20) is concavely provided with an arc-shaped clamping groove, and a rubber pad is bonded on the wall of the clamping groove.