CN216090916U

CN216090916U - Stomach irrigator for animals

Info

Publication number: CN216090916U
Application number: CN202122242617.2U
Authority: CN
Inventors: 孔庆学
Original assignee: Suzhou Fangda New Drug Development Co ltd
Current assignee: Suzhou Fangda New Drug Development Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-03-22
Anticipated expiration: 2031-09-16

Abstract

The utility model discloses a stomach irrigator for animals, and relates to the technical field of clinical tests; comprises an injector and a control system; the injector comprises an injection tube, a piston rod and a stomach filling needle, wherein one end of the injection tube is provided with a connecting pipe which is a right-angle bent pipe; the control system comprises a mounting frame and a movable frame; the mounting frame comprises positioning sleeves sleeved at two ends of the injection tube, the positioning sleeves are communicated through a connecting plate, a track groove is formed in the connecting plate, and a holding rod far away from the opening end of the connecting tube is mounted at one end, close to the connecting tube, of the mounting frame; the movable frame comprises a track block embedded into the track groove, a movable holding rod is mounted on the track block, and the movable holding rod is connected with a piston rod through a supporting rod. This device is through the installation direction who changes the injection tube, has changed the mode of exerting oneself of user's hand, makes the control of piston rod more stable, and dose control is more accurate, has avoided simultaneously because of exerting oneself excessively leading to the problem of damage animal esophagus.

Description

Stomach irrigator for animals

Technical Field

The utility model relates to the technical field of clinical tests, in particular to an animal stomach irrigator.

Background

Oral drugs are most commonly used in drug research and development due to their convenient, economical and safe characteristics, and in the drug research and development process, animals are first used for drug experiments to detect the effect of drugs. The oral gavage is the most common administration mode in animal experiments, and is particularly commonly used in the research of animal modeling of multiple disciplines such as physiology, pharmacology, immunity and the like, drug toxicology, drug effect, dose determination and the like. The method has the advantages of simple operation, accurate dosage, repeated administration, and applicability to various experimental animals such as mouse, rat, rabbit, etc.

The common intragastric administration mode is to connect an intragastric administration needle through an injector, and inject the medicine after inserting the intragastric administration needle into the stomach of the animal. In the case of small animals, such as mice, gavage is typically performed without the use of a restraint device to secure the animal, but rather with one hand directly and the other to complete the gavage, in order to improve efficiency. However, the injector needs to be operated by one hand, the operation is inconvenient to a certain extent, and in the process of controlling the movement of the piston, the hand may unconsciously move the injector axially to drive the gastric perfusion needle, so that the pain of the animal is increased, and even the injury to the internal organs of the animal is caused.

Disclosure of Invention

The present invention is directed to a gastric lavage device for animals to solve the problems set forth above in the background art. This device has improved the stability of syringe in the one-hand use through the direction that changes the syringe and the mode of hand control syringe, avoids the removal of hand to cause the injury to the experimental animals.

In order to achieve the purpose, the utility model provides the following technical scheme:

an animal stomach irrigator comprises an injector and a control system; the injector comprises an injection tube, a piston rod and a stomach filling needle, wherein one end of the injection tube is provided with a connecting pipe which is a right-angle bent pipe; the control system comprises a mounting frame and a movable frame; the mounting frame comprises positioning sleeves sleeved at two ends of the injection tube, the positioning sleeves are communicated through a connecting plate, a track groove is formed in the connecting plate, and a holding rod far away from the opening end of the connecting tube is mounted at one end, close to the connecting tube, of the mounting frame; the adjustable shelf comprises a track block embedded into a track groove, a movable holding rod is mounted on the track block, and the movable holding rod is connected with a piston rod through a supporting rod.

As a further scheme of the utility model: the free end of the fixed holding rod is provided with a cross rod far away from the movable holding rod, the movable holding rod is parallel to the fixed holding rod, and the free end of the movable holding rod is provided with the cross rod far away from the fixed holding rod.

As a still further scheme of the utility model: the injection tube internally mounted has the piston rod, the flexible piston is installed to the one end that the piston rod inserted the injection tube, the one end that the piston rod kept away from the injection tube is connected with one-level bracket, the injection tube is kept away from the one end outside of connecting pipe and is installed the second grade bracket.

As a still further scheme of the utility model: the bracing piece is parallel with the connecting plate, the bracing piece is kept away from the spacing frame that the one end of moving the holding rod installed directional one-level bracket, one side of one-level bracket imbeds in the spacing frame.

As a still further scheme of the utility model: install the gavage needle on the connecting pipe of injection tube, the gavage needle includes the connector, gives the pencil and gives the pearl of dosing, install the connector respectively and give the pearl for pencil both ends, the connector is installed on the connecting pipe.

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

by adopting the animal stomach irrigator, the device uses the connecting pipe with a right angle on the injection tube to ensure that the stomach irrigator and the injection tube form a right angle included angle, meanwhile, the device is provided with the control system outside the injection tube as an assistant to realize the control of the piston rod and further control the stomach irrigator to work, when in use, the stomach irrigator is inserted into the animal stomach, the injection tube is vertical to the stomach irrigator, and the control piston rod does not need to be controlled along the axial direction of the stomach irrigator when moving, but the thumb and other four fingers of one hand are used for respectively holding the control system from the two sides of the fixed holding rod and the movable holding rod, and the piston rod is controlled to move to administer medicine in the palm tightening process, so that the hand can apply force more easily and is more stable in the stomach irrigator process;

adopt above-mentioned gavage ware for animal, at the in-process of one-hand control gavage, when control piston rod removes, because four fingers exert oneself jointly, it is more even to exert oneself, be convenient for finely tune the dose, and because the direction has been changed, under the condition that the hand burden reduces, the palm can remain stable, the center of syringe is controlled through palm and arm, under this kind of operation, the palm need not carry out any removal, can not lead to gavage needle damage animal viscera because of axial shake, it is more gentle and stable to the experimental animals, the process of dosing is also more even, the volume of dosing of control that simultaneously can be meticulous, can not be because of too big scheduling problem of strength when finger control piston, lead to the dose error increase.

Drawings

Fig. 1 is a schematic structural view of an animal stomach irrigator.

Fig. 2 is a schematic sectional structure view of the stomach irrigator for animals.

FIG. 3 is a schematic top view of the animal gavage apparatus.

In the figure: 1. a limiting frame; 2. a primary cradle; 3. a piston rod; 4. a secondary bracket; 5. a positioning sleeve; 6. a support bar; 7. a movable frame; 8. a connecting plate; 9. a cross bar; 10. a track block; 11. a holding rod; 12. a mounting frame; 13. a connecting pipe; 14. administering the drug beads; 15. an administration tube; 16. a stomach filling needle; 17. a connector; 18. a track groove; 19. an injector; 20. a control system; 21. an injection tube; 22. moving the holding rod; 23. a flexible piston.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 3, in embodiment 1 of the present invention, an animal stomach irrigator includes an injector 19 and a control system 20; the injector 19 comprises an injection tube 21, a piston rod 3 and a stomach filling needle 16, wherein one end of the injection tube 21 is provided with a connecting pipe 13, and the connecting pipe 13 is a right-angle elbow; the control system 20 comprises a mounting frame 12 and a movable frame 7; the mounting frame 12 comprises positioning sleeves 5 sleeved at two ends of the injection tube 21, the positioning sleeves 5 are communicated through a connecting plate 8, a track groove 18 is formed in the connecting plate 8, and a holding rod 11 far away from the opening end of the connecting pipe 13 is mounted at one end, close to the connecting pipe 13, of the mounting frame 12; the movable frame 7 comprises a track block 10 embedded in a track groove 18, a movable holding rod 22 is installed on the track block 10, and the movable holding rod 22 is connected with the piston rod 3 through a support rod 6.

The device adopts the mode that an ampoule with a right angle is arranged on an injection tube 21 as a connecting tube 13, after the connection is finished, the stomach filling needle 16 and the injection tube 21 are in a vertical state, then a control system 20 is arranged on the side surface of the injection tube 21, and the moving relation between the injection tube 21 and a piston rod 3 is controlled by the moving side surfaces of a fixed holding rod 11 and a moving holding rod 22 which are arranged in parallel, so that the stomach filling work is finished. Because injection cylinder 21 is perpendicular irritates stomach needle 16, and control system 20 is horizontal operation, therefore atress when using more easily, overall structure is also more stable firm, when controlling and move holding rod 22 and decide holding rod 11, opens the palm, utilizes thumb and other four fingers to hold respectively and decide holding rod 11 and move holding rod 22, accomplishes the control of piston rod 3 at the in-process that the palm tightens up. This kind of control mode, through four fingers exerting oneself jointly, the hand burden is littleer, and control process is more stable, makes the gavage in-process dose more evenly stable, avoids the medicine to strike the animal stomach, and stability improves the back, also can avoid the hand to exert oneself too big because of the frictional force of flexible piston 23, leads to the problem of the meticulous control of dose of can't realizing.

Through four fingers lateral control, the operation process is lighter, has changed the atress simultaneously and for 16 axial problems of gavage needle, and hand can not take place the shake at the application of force in-process, also can not appear gavage needle 16 vibrations, increases the problem of animal through-hole.

Example 2

Referring to fig. 1 to 3, the main differences between the embodiment 2 and the embodiment 1 are:

referring to fig. 1 and 2, in embodiment 2 of the present invention, a cross bar 9 is installed at a free end of the fixed holding rod 11, the cross bar being far away from the movable holding rod 22, the movable holding rod 22 being parallel to the fixed holding rod 11, and the cross bar 9 is installed at a free end of the movable holding rod 22, the cross bar being far away from the fixed holding rod 11. The cross bar 9 is used to define the connection of the control system 20 to the hand and prevent the syringe 19 from falling down when the hand is held laterally.

Referring to fig. 1 and 2, a piston rod 3 is installed inside the syringe 21, a flexible piston 23 is installed at one end of the piston rod 3 inserted into the syringe 21, a primary bracket 2 is connected to one end of the piston rod 3 away from the syringe 21, and a secondary bracket 4 is installed outside one end of the syringe 21 away from the connecting pipe 13. The piston rod 3 controls the uptake and expulsion of the drug through a flexible piston 23 that seals the syringe 21, and the primary carrier 2 and the secondary carrier 4 are used to provide a point of application for the hand during extraction and pressurization.

Referring to fig. 1 and 2, the support rod 6 is parallel to the connecting plate 8, a position-limiting frame 1 pointing to the primary bracket 2 is installed at one end of the support rod 6 away from the movable holding rod 22, and one side of the primary bracket 2 is embedded in the position-limiting frame 1. The bracing piece 6 is located the connecting plate 8 outsidely, and 6 tip of bracing piece are provided with spacing frame 1, remove spacing frame 1 to the assigned position, can make one-level bracket 2 imbed in spacing frame 1 through rotating one-level bracket 2, and then make piston rod 3 driven under the effect of bracing piece 6 and remove.

Referring to fig. 1 to 3, a connecting tube 13 of the injection tube 21 is provided with a gastric perfusion needle 16, the gastric perfusion needle 16 includes a connector 17, a drug administration tube 15 and a drug administration bead 14, the connector 17 and the drug administration bead 14 are respectively installed at two ends of the drug administration tube 15, and the connector 17 is installed on the connecting tube 13. The stomach filling needle 16 is arranged at the opening end of the connecting pipe 13, so that the axial direction is vertical to the axial direction of the injection cylinder 21, the medicine feeding bead 14 is used for enabling the tip of the stomach filling needle 16 to be smooth and round, the internal organs of the animal are prevented from being punctured, and the medicine feeding pipe 15 sends the medicine feeding bead 14 into the stomach of the animal to complete stomach filling.

The working principle of the utility model is as follows:

this device has installed connecting pipe 13 that has the right angle on injection tube 21 and is used for connecting gavage needle 16, consequently make gavage needle 16 and injection tube 21 become the right angle and distribute, control system 20 has been installed in the injection tube 21 outside simultaneously, control system 20 comprises position fixing's mounting bracket 12 and can follow the adjustable shelf 7 of 21 axial displacement of injection tube, piston rod 3 is connected to adjustable shelf 7, can hold the holding rod 11 of deciding that is located respectively on mount and adjustable shelf 7 and move holding rod 22 through the hand, the realization is to piston rod 3's control, the control that makes to injection tube 21 dosing also is accomplished in the side of injection tube 21. Through this kind of mode, changed animal, gavage needle 16, injection cylinder 21 and piston rod 3 state on an axis, made the hand exert oneself more relaxed, control effect is better, and the medicine dose is more accurate, and can avoid exerting oneself too big injury experimental animals because of the hand.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An animal stomach irrigator comprises an injector and a control system; the injector comprises an injection tube, a piston rod and a stomach filling needle; the injection tube is characterized in that one end of the injection tube is provided with a connecting pipe which is a right-angle bent pipe; the control system comprises a mounting frame and a movable frame; the mounting frame comprises positioning sleeves sleeved at two ends of the injection tube, the positioning sleeves are communicated through a connecting plate, a track groove is formed in the connecting plate, and a holding rod far away from the opening end of the connecting tube is mounted at one end, close to the connecting tube, of the mounting frame; the adjustable shelf comprises a track block embedded into a track groove, a movable holding rod is mounted on the track block, and the movable holding rod is connected with a piston rod through a supporting rod.

2. The gastric lavage device for animals of claim 1, wherein the free end of the holding rod is mounted with a cross bar away from the moving holding rod, the moving holding rod is parallel to the holding rod, and the free end of the moving holding rod is mounted with a cross bar away from the holding rod.

3. The animal stomach irrigator according to claim 1, wherein a piston rod is installed inside the syringe, a flexible piston is installed at one end of the piston rod inserted into the syringe, a primary bracket is connected to one end of the piston rod far away from the syringe, and a secondary bracket is installed outside one end of the syringe far away from the connecting pipe.

4. The animal stomach irrigator of claim 1 wherein the support bar is parallel to the connecting plate, and a stop frame pointing to the primary bracket is mounted at an end of the support bar remote from the grasping bar, one side of the primary bracket being embedded in the stop frame.

5. The animal is with irritating stomach ware of claim 1 or 3, wherein install the needle of irritating stomach on the connecting pipe of injection cylinder, the needle of irritating stomach includes connector, dosing pipe and dosing pearl, the dosing pipe both ends are installed the connector respectively and are dosed the pearl, the connector is installed on the connecting pipe.