CN211213681U

CN211213681U - Length-adjustable rat experiment gastric perfusion device

Info

Publication number: CN211213681U
Application number: CN201921281682.2U
Authority: CN
Inventors: 田升; 宋晓彤; 张亚楠; 王媛; 赵海军; 念金波; 刘彩红; 张倩; 刘黎青; 王世军
Original assignee: Shandong University of Traditional Chinese Medicine
Current assignee: Shandong University of Traditional Chinese Medicine
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-08-11
Anticipated expiration: 2029-08-06

Abstract

The utility model discloses a rat experiment stomach filling ware of adjustable length, including needle tube body, three-way pipe and intercommunication valve, be provided with the scale interval on the outer wall of needle tube body, and the top of needle tube body is fixed with the connecting piece, the one end of three-way pipe is connected in the bottom exit position department of needle tube body, and the other both ends of three-way pipe are connected with drainage tube and suction tube respectively, the cover is equipped with the sleeve pipe on the outer wall of drainage tube, and is fixed with damping rubber ring on the sheathed tube inner wall to be fixed with the clamp bag on the sheathed tube outer wall, press from both sides bag and sheathed tube junction and install the soft area moreover, be connected with the connection rope between the avris of clamp bag, and connect the rope and rotate a body interconnect. This rat experiment gavage ware of adjustable length, the convenience is controlled the leading-in liquid medicine volume of deriving of single for the gavage volume of liquid medicine is more accurate, is convenient for stretch into the regulation of rat stomach length simultaneously, can carry out good centre gripping location to the pipeline that stretches into.

Description

Length-adjustable rat experiment gastric perfusion device

Technical Field

The utility model relates to a rat experiment gavage ware technical field specifically is a rat experiment gavage ware of adjustable length.

Background

Rat experiment gavage ware is the liquid filling instrument that the experimental work of rat goes on in carrying out the laboratory, through the use of gavage ware, can very make things convenient for effectual reduction liquid medicine and continuously introduce into the biological stomach of rat, reduces the waste and the leakage of liquid medicine transport.

However, the existing rat experimental gavage device has the following problems in use:

1. the effective control of the liquid filling amount is inconvenient, and meanwhile, when the suction and the discharge of the liquid medicine are repeatedly carried out, the cross infection of the liquid medicine is very easy to cause, and the continuous, effective and rapid introduction of the liquid medicine into the stomach is carried out;

2. the length of the pipeline which is not beneficial to leading in the mouse stomach is adjusted, so that the liquid medicine waste and the mouse injury which are caused by inaccurate positions can be easily caused during liquid guiding and stomach filling work, the clamping and positioning at the mouth of the mouse can be conveniently carried out on the pipeline, and the failure of liquid filling can be easily caused.

Aiming at the problems, innovative design is urgently needed on the basis of the original rat experimental gavage device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mouse experiment gavage ware of adjustable length, with solve above-mentioned background art and propose the inconvenient effective control who irritates the liquid measure of current rat experiment gavage ware, when repeatedly carrying out the suction and the derivation of liquid medicine, very easily cause the cross infection of liquid medicine, and going on of the continuous effective leading-in gavage work of liquid medicine fast, the pipeline length who is unfavorable for leading-in mouse stomach adjusts, make the work of irritating the stomach of drain easily cause the liquid medicine that the position is inaccurate to be extravagant and the mouse injury, be not convenient for carry out the centre gripping location at mouse mouth to the pipeline simultaneously, easily cause the problem of irritating the liquid failure.

In order to achieve the above object, the utility model provides a following technical scheme: a length-adjustable rat experimental gastric perfusion device comprises a needle tube body, a three-way pipe and a communicating valve, wherein the outer wall of the needle tube body is provided with a scale value, the top of the needle tube body is fixedly provided with a connecting piece, the middle part of the connecting piece is provided with a positioning rod in a penetrating way, the inside of the positioning rod is provided with a telescopic rod, the bottom of the telescopic rod is vertically fixed with a rubber plug, one end of the three-way pipe is connected with the outlet position at the bottom of the needle tube body, the other two ends of the three-way pipe are respectively connected with a drainage tube and a suction tube, the connecting parts of the drainage tube, the suction tube and the three-way pipe are respectively provided with the communicating valve, the outer wall of the drainage tube is sleeved with a sleeve, the inner wall of the sleeve is fixedly provided with a damping rubber ring, the outer wall of the sleeve is fixedly provided with, and the connecting rope is connected with the rotating piece, and the rotating piece is fixed on the outer wall of the clamping bag.

Preferably, threaded connection between locating lever and the connecting piece, and be the relative sliding connection of laminating on the inside of connecting piece and the outer wall of telescopic link to telescopic link and locating lever and the vertical coaxial setting of needle tubing body.

Preferably, the top of rubber buffer is connected for the block with the bottom of locating lever, and the rubber buffer is the sealed sliding connection of laminating with the inner wall of needle tube body.

Preferably, the drainage tube and the end of the three-way pipe are clamped and are arranged in a detachable and detachable mode, the drainage tube and the damping rubber ring are arranged in a detachable and detachable mode, and the end portion of the drainage tube is of a hollow spherical structure.

Preferably, the rotation piece is divided by location shell, knob, rubber lug and constant head tank four bibliographic categories and is constituteed, and the middle part bearing of location shell installs the knob to the bottom of knob and location shell is provided with rubber lug and constant head tank respectively, the constant head tank is in the equal angle evenly distributed of the bottom of location shell, and is connected for extruded block between constant head tank and the rubber lug.

Compared with the prior art, the beneficial effects of the utility model are that: the length-adjustable rat experiment gastric lavage device is convenient to control the amount of liquid medicine led out by single introduction, so that the amount of liquid medicine perfused into the stomach is more accurate, the length of the stomach extending into the rat is convenient to adjust, and the extending pipeline can be well clamped and positioned;

1. the telescopic rod is driven to synchronously move under the rotation action of the positioning rod only through the threaded connection between the connecting piece and the positioning rod, the liquid medicine amount of single intragastric administration is more accurate and constant under the action of limiting the inner capacity of the needle tube body by the rubber plug at the bottom of the telescopic rod, and meanwhile, the three-way tube and the communicating valve on the three-way tube enable the liquid medicine to be led in and led out to avoid cross infection of the liquid medicine;

2. under the mouth parcel effect of double-layered bag to the rat, rotate the piece through artificial rotation, rotate the inside knob of piece and rotate and carry out the rolling to connecting the rope for interval between the double-layered bag reduces the good mouth that is fixed in the rat, makes the work of gavage of drainage tube carry out more conveniently, and drainage tube position when effectively having avoided gavage work to go on removes the problem and takes place.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the installation structure of the telescopic rod of the present invention;

FIG. 3 is a schematic view of the mounting structure of the bag clip of the present invention;

fig. 4 is a schematic view of a rotating member according to the present invention.

In the figure: 1. a needle tube body; 2. a scale value; 3. a connecting member; 4. positioning a rod; 5. a telescopic rod; 6. a rubber plug; 7. a three-way pipe; 8. a drainage tube; 9. a suction tube; 10. a communication valve; 11. a sleeve; 12. a damping rubber ring; 13. clamping a bag; 14. a soft belt; 15. connecting ropes; 16. a rotating member; 1601. a positioning shell; 1602. a knob; 1603. a rubber bump; 1604. and (6) positioning a groove.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a length-adjustable rat experimental gastric perfusion device comprises a needle tube body 1, a scale division value 2, a connecting piece 3, a positioning rod 4, a telescopic rod 5, a rubber plug 6, a three-way pipe 7, a drainage tube 8, a suction tube 9, a communication valve 10, a sleeve 11, a damping rubber ring 12, a clamping bag 13, a soft belt 14, a connecting rope 15, a rotating piece 16, a positioning shell 1601, a knob 1602, a rubber bump 1603 and a positioning groove 1604, wherein the scale division value 2 is arranged on the outer wall of the needle tube body 1, the connecting piece 3 is fixed at the top of the needle tube body 1, the positioning rod 4 is arranged in the middle of the connecting piece 3 in a penetrating mode, the telescopic rod 5 is arranged inside the positioning rod 4, the rubber plug 6 is vertically fixed at the bottom of the telescopic rod 5, one end of the three-way pipe 7 is connected to the bottom outlet position of the needle tube body 1, the other two ends of the three-way pipe 7 are respectively connected with the drainage tube 8 and, the cover is equipped with sleeve pipe 11 on the outer wall of drainage tube 8, and is fixed with damping rubber ring 12 on sleeve pipe 11's the inner wall to be fixed with bag 13 on sleeve pipe 11's the outer wall, soft area 14 is installed with the junction of bag 13 and sleeve pipe 11 in addition, is connected with between bag 13's the avris and connects rope 15, and connects rope 15 and rotate 16 interconnect, and rotate 16 and be fixed in on bag 13's the outer wall.

Threaded connection between locating lever 4 and connecting piece 3, and be the relative sliding connection of laminating on the inside of connecting piece 3 and the outer wall of telescopic link 5 to telescopic link 5 and locating lever 4 and the vertical coaxial setting of needle tubing body 1, the use location of the locating lever 4 of being convenient for makes the device single leading-in volume of deriving liquid limit.

The top of rubber buffer 6 is connected for the block with the bottom of locating lever 4, and rubber buffer 6 and the sealed sliding connection of needle tube body 1's inner wall for the laminating, is convenient for promote the inside liquid of needle tube body 1 through rubber buffer 6, avoids the leakage problem of junction to take place.

The drainage tube 8 and the pipe end of the three-way pipe 7 are arranged in a clamping and detachable mode in a sealing mode, the drainage tube 8 and the damping rubber ring 12 are arranged in a detachable mode, the end portion of the drainage tube 8 is arranged to be of a hollow spherical structure, the drainage tube 8 is convenient to detach, install and use, and impact damage is reduced when the drainage tube penetrates deep into the stomach of a rat.

The rotation piece 16 is divided into four parts by location shell 1601, knob 1602, rubber lug 1603 and constant head tank 1604, and the middle part bearing of location shell 1601 installs knob 1602, and the bottom of knob 1602 and location shell 1601 is provided with rubber lug 1603 and constant head tank 1604 respectively, constant head tank 1604 is in the equal angle evenly distributed of the bottom of location shell 1601, and is extruded block connection between constant head tank 1604 and the rubber lug 1603, through the rotation of rotation piece 16, the pulling is connected rope 15 and is made the elasticity of pressing from both sides bag 13 change, be convenient for at the installation location of mouse mouth.

The working principle is as follows: when the length-adjustable rat experimental gastric perfusion apparatus is used, firstly, according to the graph shown in fig. 1-2, the liquid amount in the needle tube body 1 is changed as required, so that the liquid amount in the single perfusion is constant, the positioning rod 4 is rotated manually, the positions of the positioning rod 4 and the telescopic rod 5 are changed under the threaded connection action of the positioning rod 4 and the connecting piece 3, under the action of the rubber plug 6 at the end part of the telescopic rod 5 and the inner space of the needle tube body 1, the liquid amount in the needle tube body 1 is constant, so that the accurate liquid guiding work is convenient, as shown in fig. 2, the telescopic rod 5 is pushed manually, so that the telescopic rod 5 can move telescopically in the positioning rod 4, under the action of the telescopic rod 5 driving the rubber plug 6 to move, the liquid in the needle tube body 1 is guided in and guided out, when the liquid medicine is guided in and guided out, by closing the communication valve 10 on the drainage tube 8 and opening the communication valve 10 on the suction tube 9, the liquid medicine can be sucked into the needle tube body 1 through the suction tube 9, and under the opening of the communication valve 10 on the drainage tube 8 and the closing action of the communication valve 10 on the suction tube 9, the liquid medicine can be led out through the drainage tube 8 and enter the stomach of a rat, so that the quick gastric lavage work of the liquid medicine is facilitated, and meanwhile, the cross infection when the needle tube body 1 repeatedly leads out and leads the liquid medicine is avoided;

according to fig. 3-4, when the drainage tube 8 is inserted into the stomach of a rat, in order to limit the length of the drainage tube 8 inserted into the stomach of the rat, and avoid the injury of the stomach of the rat and the waste of liquid medicine caused by the problem of the length of the drainage tube 8 inserted into the stomach, the sleeve 11 is pushed manually to move on the drainage tube 8, the damping rubber ring 12 between the sleeve 11 and the drainage tube 8 prevents the static sleeve 11 from moving arbitrarily to change the position of the clamping bag 13, the clamping bag 13 is sleeved outside the mouth of the rat and fixed, so that the rat does not cause the movement of the drainage tube 8 when the rat is perfused into the stomach, as shown in fig. 4, the knob 1602 is rotated manually to rotate relative to the positioning shell 1601, so that the connecting rope 15 is wound on the outer wall of the knob 1602, the clamping bag 13 is stably fixed on the mouth of the rat, and under the clamping connection action of the rubber bump 1603 at the bottom, so that the connection rope 15 after being wound cannot be loosened by arbitrary rotation.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a rat experiment stomach filler of adjustable length, includes needle tubing body (1), tee bend (7) and intercommunication valve (10), its characterized in that: the needle tube comprises a needle tube body (1), and is characterized in that a scale value (2) is arranged on the outer wall of the needle tube body (1), a connecting piece (3) is fixed at the top of the needle tube body (1), a positioning rod (4) is installed in the middle of the connecting piece (3) in a penetrating manner, a telescopic rod (5) is arranged inside the positioning rod (4), a rubber plug (6) is vertically fixed at the bottom of the telescopic rod (5), one end of a three-way pipe (7) is connected to the outlet position of the bottom of the needle tube body (1), the other two ends of the three-way pipe (7) are respectively connected with a drainage tube (8) and a suction tube (9), a communication valve (10) is arranged at the joint of the drainage tube (8) and the suction tube (9) and the three-way pipe (7), a sleeve (11) is sleeved on the outer wall of the drainage tube (8), a damping rubber ring (12) is fixed on, and soft area (14) are installed to the junction of double-layered bag (13) and sleeve pipe (11), be connected with between the avris of double-layered bag (13) and connect rope (15), and connect rope (15) and rotate piece (16) interconnect to rotate piece (16) and be fixed in on the outer wall of double-layered bag (13).

2. The adjustable length rat experimental gavage device of claim 1, wherein: threaded connection between locating lever (4) and connecting piece (3), and be the relative sliding connection of laminating on the inside of connecting piece (3) and the outer wall of telescopic link (5) to telescopic link (5) and locating lever (4) and the vertical coaxial setting of needle tubing body (1).

3. The adjustable length rat experimental gavage device of claim 1, wherein: the top of rubber buffer (6) is connected for the block with the bottom of locating lever (4), and rubber buffer (6) and the sealed sliding connection of needle tubing body's (1) inner wall for the laminating.

4. The adjustable length rat experimental gavage device of claim 1, wherein: the drainage tube (8) and the end of the three-way tube (7) are clamped and are arranged in a sealing and dismounting manner, the drainage tube (8) and the damping rubber ring (12) are arranged in a dismounting manner, and the end part of the drainage tube (8) is arranged to be a hollow spherical structure.

5. The adjustable length rat experimental gavage device of claim 1, wherein: the rotating piece (16) is composed of four parts, namely a positioning shell (1601), a knob (1602), a rubber bump (1603) and a positioning groove (1604), the knob (1602) is installed on a middle bearing of the positioning shell (1601), the bottoms of the knob (1602) and the positioning shell (1601) are respectively provided with the rubber bump (1603) and the positioning groove (1604), the positioning groove (1604) is evenly distributed at the bottom of the positioning shell (1601) at equal angles, and the positioning groove (1604) and the rubber bump (1603) are connected through extruded clamping.