CN216725372U - Disposable stomach irrigator - Google Patents

Abstract

The utility model discloses a disposable stomach irrigator, relating to the technical field of clinical trials; comprises a syringe and an intragastric administration component; the intragastric perfusion assembly comprises an intragastric perfusion needle and a protection structure, and the protection structure comprises a protection barrel, a limiting ring and a supporting barrel; the stomach perfusion needle comprises a connector, a limiting plate, an administration tube and an administration ball; a limiting plate vertical to the connector is fixedly connected to the connector; a plurality of groups of limiting rings with different angles are arranged inside the protection barrel, limiting grooves matched with the limiting plates in shape are formed inside the limiting rings, the protection barrel is close to one end opening of the connector, one end of the protection barrel far away from the connector is provided with a supporting barrel, and the supporting barrel is sleeved outside the administration tube. This device can effectively avoid the animal to bite out the bad gavage needle at the gavage in-process, can also assist the judgement of carrying out the gavage degree of depth simultaneously, provides the reference for the not enough user of proficiency.

Description

Disposable stomach irrigator

Technical Field

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

Background

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 stomach irrigation needs to have certain understanding on the body structure of an experimental animal, and beginners often hurt the air passage or the esophagus of a mouse due to improper manipulation and even hurt the internal organs of the mouse to cause the death of the mouse, so that the experiment fails.

Because animals such as rats, mice and rabbits used for experiments generally have sharp teeth, and the stomach irrigation needle is bitten by discomfort in the struggling process in the stomach irrigation process, the commonly used stomach irrigation needle adopts a metal structure at present in order to avoid medicine leakage. In addition to conventional drug tests, some tests require isolation as much as possible, so disposable gastric lavage devices are required, and the cost of the metal gastric lavage needle as the disposable device is high, so that lower-cost plastic materials are required, but the problem that the gastric lavage needle made of the materials is difficult to avoid the problems of bite, fracture and breakage of animals.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a disposable gastric lavage device that solves the problems set forth above in the background of the utility model. This device can protect the gavage needle in the use, avoids the unconscious bite of animal to damage the gavage needle, can also assist the staff to carry out the control of gavage degree of depth simultaneously, avoids causing the damage to realizing the animal owing to the operation is not skilled.

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

a disposable stomach irrigator which comprises a syringe and a stomach irrigator component; the intragastric perfusion assembly comprises an intragastric perfusion needle and a protection structure, and the protection structure comprises a protection barrel, a limiting ring and a supporting barrel; the stomach perfusion needle comprises a connector, a limiting plate, an administration tube and an administration ball; a limiting plate vertical to the connector is fixedly connected to the connector; a plurality of groups of limiting rings with different angles are arranged inside the protection barrel, limiting grooves matched with the limiting plates in shape are formed inside the limiting rings, the protection barrel is close to one end opening of the connector, one end of the protection barrel far away from the connector is provided with a supporting barrel, and the supporting barrel is sleeved outside the administration tube.

As a further scheme of the utility model: the connector is connected with a medicine feeding pipe, the medicine feeding pipe is connected with a medicine feeding ball, and the surface of the medicine feeding ball is hollowed.

As a still further scheme of the utility model: the limiting plate is in a shuttle shape, and the distance between any two symmetrical points at the center of the limiting plate is larger than the width of the injector.

As a still further scheme of the utility model: the syringe includes injection tube and piston rod, the inside piston rod of inserting the injection tube is installed to the injection tube open end, the connecting pipe is installed to the one end that the piston rod was kept away from to the injection tube, the cover has the connector on the connecting pipe.

As a still further scheme of the utility model: the injection tube is characterized in that a primary pressure plate is installed on the outer side of the open end of the injection tube, and a secondary pressure plate is installed at one end, far away from the injection tube, of the piston rod.

As a still further scheme of the utility model: the surface of the injection cylinder is marked with scale marks.

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

by adopting the disposable stomach irrigator, a protection structure is used outside a stomach irrigator, the protection structure is made of transparent materials, a protection barrel is sleeved on a medicine feeding pipe and is positioned at a position far away from an injector, when the disposable stomach irrigator is used, a medicine feeding ball is placed in an animal mouth, then the medicine feeding ball is moved continuously to enable the support barrel to be clamped in the animal mouth, and then the injector and the stomach irrigator can move relative to the protection structure by rotating the protection barrel to a specified angle;

adopt above-mentioned disposable gavage ware, the cooperation of limiting plate and spacing ring makes this device before using, protection architecture and gavage needle formula structure as an organic whole, and even when the installation gavage needle, protection architecture can not remove the installation that influences the gavage needle by a wide margin yet, when using, through the cooperation that reaches the limiting plate on corresponding spacing ring and the gavage needle with a protection section of thick bamboo rotatory certain angle, make the gavage needle pass a protection section of thick bamboo and remove, the position of the multiunit spacing ring in the protection section of thick bamboo can be according to the stomach degree of depth design of the animal of different sizes or kind, the degree of depth position of body type operator gavage needle is restricted through the spacing ring promptly, the supplementary user who judges animal stomach degree of depth is accurate finds animal stomach position, avoid stabbing animal viscera, the accuracy is improved.

Drawings

Fig. 1 is a schematic structural view of a disposable gastric lavage device.

FIG. 2 is a schematic view of the intragastric assembly of the single-use intragastric administration set.

Fig. 3 is a schematic structural view of the matching of the limiting plate and the limiting ring in the disposable gastric lavage device.

In the figure: 1. a secondary pressing plate; 2. a piston rod; 3. a first-stage pressing plate; 4. an injection tube; 5. scale lines; 6. an injector; 7. A gastric lavage component; 8. a connecting pipe; 9. a connector; 10. a protective cylinder; 11. a limiting ring; 12. a limiting groove; 13. a support cylinder; 14. a stomach filling needle; 15. a dosing ball; 16. an administration tube; 17. a protective structure; 18. and a limiting plate.

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. 1-3, in embodiment 1 of the present invention, a disposable gastric lavage device includes a syringe 6 and a gastric lavage component 7; the intragastric perfusion component 7 comprises a perfusion needle 14 and a protection structure 17, wherein the protection structure 17 comprises a protection barrel 10, a limiting ring 11 and a support barrel 13; the stomach perfusion needle 14 comprises a connector 9, a limiting plate 18, an administration tube 16 and an administration ball 15; a limiting plate 18 vertical to the connector 9 is fixedly connected to the connector 9; a plurality of sets of different-angle limiting rings 11 are arranged inside the protection barrel 10, limiting grooves 12 matched with the limiting plates 18 in shape are formed inside the limiting rings 11, the protection barrel 10 is close to one end opening of the connector 9, one end of the connector 9 is far away from, a support barrel 13 is installed, and the support barrel 13 is sleeved outside the administration tube 16.

This device is because the disposable gavage ware that uses, consequently each part all is light, low-cost transparent material plastic products, through the cover at 14 outside protection architecture 17 of gavage needle for protect disposable stomach gavage needle 14, avoid appearing the condition that the animal bites bad gavage needle 14 at the gavage in-process, and protection architecture 17 also can the back at the in-process protection gavage needle 14 of transportation and saving, avoid dosing pipe 16 because external force leads to deforming damage.

The supporting cylinder 13 of the protection structure 17 is far away from one end of the injector 6, the separated intragastric perfusion assembly 7 is installed on the injector 6 before intragastric perfusion, the movable range of the protection structure 17 relative to the intragastric perfusion needle 14 is limited, and the problem of fixation of the intragastric perfusion assembly 7 cannot be influenced. When the novel animal stomach-irrigation device is used, one end of the stomach-irrigation needle 14 is inserted into an animal mouth, the supporting cylinder 13 is continuously inserted into the animal mouth, the supporting cylinder 13 is bitten by an animal, and the damage to the stomach-irrigation needle 14 can be effectively avoided. At this time, the stomach filling needle 14 is difficult to move against the protection structure 17, the protection barrel 10 is rotated to enable the position of the limiting groove 12 to correspond to the angle of the limiting plate 18, the stomach filling needle 14 can penetrate through the limiting plate 18 and continue to be inserted into the stomach of the animal, and the support barrel 13 is always left in the mouth of the animal. The cooperation of spacing ring 11 and limiting plate 18 not only can realize spacing to protection architecture 17 and gavage needle 14 before using, can also be used for supplementary controlling the degree of depth of gavage at the gavage in-process, set up the different spacing ring 11 in multiunit position in the protection section of thick bamboo 10, the in-process of gavage needs to pass in proper order, when not needing supplementary, through rotating protection section of thick bamboo 10, can make gavage needle 14 pass in proper order, when needs are supplementary, spacing ring 11 according to the setting of different animal stomach degree of depth can effectually avoid the operator to excessively to insert gavage needle 14, the problem of damage animal viscera.

Example 2

Referring to fig. 1 to 3, the main difference between the embodiment 2 and the embodiment 1 is:

referring to fig. 1 to 3, in embodiment 2 of the present invention, the connector 9 is connected to an administration tube 16, the administration tube 16 is connected to an administration ball 15, and the surface of the administration ball 15 is hollowed. The intragastric administration device is realized by matching a connector 9, an administration tube 16 and an administration ball 15, the connector 9 is used for connecting an injector 6, the administration tube 16 is used for penetrating the esophagus of an animal, the exterior of the administration ball 15 is smooth, and the esophagus is prevented from being damaged in the insertion process.

Referring to fig. 1 to 3, the limiting plate 18 is shaped like a shuttle, and the distance between any two symmetrical points on the limiting plate 18 is greater than the width of the injector 6. The shape of the limiting plate 18 is not fixed, and is not circular, and the distance between any two symmetrical points is larger than the width of the injector 6, so that the injector 4 can be inserted into the protective barrel 10, and when the intragastric administration needle 14 extends into the stomach, the injector 6 is close to the mouth of an animal, and is inserted into the protective barrel 10.

Referring to fig. 1, the syringe 6 includes a syringe 4 and a piston rod 2, the piston rod 2 inserted into the syringe 4 is installed at an opening end of the syringe 4, a connecting pipe 8 is installed at one end of the syringe 4 far away from the piston rod 2, and a connector 9 is sleeved on the connecting pipe 8. The injector 6 is controlled by the piston rod 2 to suck and inject the liquid medicine, and the connecting rod is used for connecting with the replaceable connector 9.

Referring to fig. 1, a primary pressure plate 3 is installed on the outer side of the opening end of the injection tube 4, and a secondary pressure plate 1 is installed on one end of the piston rod 2 away from the injection tube 4. The primary pressure plate 3 and the secondary pressure plate 1 are used for assisting the hand in squeezing operation during hand-held injection.

Referring to fig. 1, the surface of the syringe 4 is marked with scale lines 5. The scale mark 5 is used for judging the content of the internal medicine and the amount of the intragastric medicine.

The working principle of the utility model is as follows:

this device has set up protection architecture 17 in gavage needle 14 outside for protect disposable gavage needle 14, because disposable gavage needle 14 generally adopts comparatively low-cost plastics material, outside protection architecture 17 can avoid gavage in-process gavage needle 14 to be bitten bad, and a supporting cylinder 13 is in the animal mouth at the in-process card of gavage, avoids their tooth closed. The stomach filling needle 14 can penetrate through the protection barrel 10 under the condition of angle matching with the protection structure 17, and other conditions cannot penetrate through the protection barrel, so that the position relation between the stomach filling needle 14 and the protection structure 17 is relatively fixed under the conventional state, the stomach filling needle 14 can penetrate through the protection barrel 10 by rotating during stomach filling, and the multistage limiting ring 11 can make auxiliary judgment on the stomach filling depth, so that people who are not familiar with animal structures can accurately find the stomach position, and the condition that the internal organs of the animals are damaged by inserting the stomach needle too deeply is avoided.

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 (6)

1. A disposable stomach irrigator which comprises a syringe and a stomach irrigator component; the utility model is characterized in that the intragastric perfusion component comprises an intragastric perfusion needle and a protection structure, and the protection structure comprises a protection barrel, a limit ring and a support barrel; the intragastric administration needle comprises a connector, a limiting plate, an administration tube and an administration ball; a limiting plate vertical to the connector is fixedly connected to the connector; a plurality of groups of limiting rings with different angles are arranged inside the protection barrel, limiting grooves matched with the limiting plates in shape are formed inside the limiting rings, the protection barrel is close to one end opening of the connector, one end of the protection barrel far away from the connector is provided with a supporting barrel, and the supporting barrel is sleeved outside the administration tube.

2. The disposable gastric lavage device of claim 1 wherein the connector is connected with a drug administration tube, the drug administration tube is connected with a drug administration ball, and the surface of the drug administration ball is hollowed out.

3. The single use gastric lavage of claim 1 wherein the restriction plate is in the shape of a shuttle and any two points of the restriction plate that are symmetrical about the center are spaced further apart than the width of the syringe.

4. The disposable stomach irrigator of claim 1 wherein the syringe comprises an injection tube and a piston rod, the piston rod inserted into the injection tube is installed at the open end of the injection tube, a connecting tube is installed at one end of the injection tube far away from the piston rod, and a connector is sleeved on the connecting tube.

5. The disposable stomach irrigator of claim 4 wherein a primary pressure plate is mounted on the outside of the open end of the barrel and a secondary pressure plate is mounted on the end of the piston rod remote from the barrel.

6. The single use gastric lavage of claim 4 or 5 wherein the barrel surface is marked with graduations.

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