CN219000707U

CN219000707U - Nasal administration device for experimental animals

Info

Publication number: CN219000707U
Application number: CN202223073288.4U
Authority: CN
Inventors: 李刚; 解宇环; 陈柏君; 雷娜; 熊磊
Original assignee: Yunnan University of Traditional Chinese Medicine TCM
Current assignee: Yunnan University of Traditional Chinese Medicine TCM
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-05-12
Anticipated expiration: 2032-11-18

Abstract

The utility model provides a nasal administration device for experimental animals, which comprises an injection device and an administration device, wherein the administration device comprises an administration tube, an anti-return device is arranged in the administration tube, the anti-return device comprises a first anti-return baffle and a second anti-return baffle, the second anti-return baffle is positioned below the first anti-return baffle, the outer wall of the top of the first anti-return baffle is connected with the inner wall of the top of the administration tube, the second anti-return baffle is movably connected with the first anti-return baffle through a flexible shaft, a limiting block is arranged on one side, close to an administration port, of the second anti-return baffle positioned on the inner wall of the administration tube, a first baffle is arranged at one end, far away from the administration port, of the administration tube, and an administration port is arranged below one end, close to the first baffle, of the administration tube. The medicine liquid in the syringe is conveyed to the interior of the nasal cavity of the animal through the medicine feeding pipe, the back stopping device in the medicine feeding pipe prevents the medicine liquid after conveying from flowing back, the medicine feeding outlet is shielded through the first baffle, the medicine liquid is prevented from flowing down through the nasal cavity during medicine feeding, and the medicine liquid at the medicine feeding outlet is accurately conveyed to the interior of the nasal cavity of the animal.

Description

Nasal administration device for experimental animals

Technical Field

The utility model mainly relates to the technical field of animal drug delivery devices, in particular to a nasal drug delivery device for experimental animals.

Background

In simulating the occurrence and development of diseases and evaluating the efficacy of certain drugs or other therapeutic measures, experiments are often carried out by using animals, and experimental staff often administer the drugs to the animals according to the needs of the experiments, and common administration modes include gastric lavage, subcutaneous injection, intravenous injection, intraperitoneal injection, nasal drip and the like.

The nasal administration is simple and easy to operate, and the nasal cavity has rich blood vessels, so that the medicine can be conveniently and rapidly distributed on the whole body, but the traditional administration tube is not provided with a baffle, and the medicine liquid is easy to flow back and flow down into esophagus and trachea through the nasal cavity during administration, so that the nasal administration device for experimental animals is inconvenient to use, and the problems in the above are solved.

Disclosure of Invention

The utility model mainly provides a nasal administration device for experimental animals, which is used for solving the technical problems in the background technology.

The technical scheme adopted for solving the technical problems is as follows:

the experimental animal nasal administration device comprises an injection device and an administration device, wherein the administration device is positioned at one end of the injection device, the administration device comprises an administration tube, one end of the administration tube is provided with an administration inlet, the inside of the administration tube is provided with an anti-reflux device, the anti-reflux device comprises a first anti-reflux baffle and a second anti-reflux baffle, the first anti-reflux baffle and the second anti-reflux baffle are all arranged in a semicircular structure, the second anti-reflux baffle is positioned below the first anti-reflux baffle, the top outer wall of the first anti-reflux baffle is connected with the inner wall of the top of the administration tube, the second anti-reflux baffle is movably connected with the first anti-reflux baffle through a flexible shaft, the second anti-reflux baffle positioned on the inner wall of the administration tube is close to one side of the administration inlet, the administration tube is far away from the administration inlet, and the lower side of the administration tube is close to the first baffle is communicated with the administration outlet.

Further, the injection device comprises an injector, and a medicine outlet of the injector is connected with a medicine inlet of the medicine feeding pipe.

Further, a first dust cover is sleeved outside the medicine outlet of the injector.

Further, the outer wall of the injector is provided with injection scale marks.

In contrast to the prior art, the method has the advantages that, the beneficial effects of the utility model are as follows:

the novel inside liquid medicine of syringe is carried to inside the animal nasal cavity through the pipe of dosing, prevents through the inside non return device of pipe of dosing that the liquid medicine after carrying flows back, shelter from the medicine outlet department of dosing through first baffle, in the liquid medicine flows down esophagus and trachea through the nasal cavity when preventing to dosing, makes the liquid medicine of medicine outlet department of dosing accurately carry inside the animal nasal cavity, simple structure does benefit to and uses widely.

The utility model will be explained in detail below with reference to the drawings and specific embodiments.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

fig. 2 is a front view of the drug delivery device of the present utility model;

FIG. 3 is a schematic view of the structure of the non-return device of the present utility model;

fig. 4 is a schematic view of the structure of the injection device of the present utility model.

In the figure: 1. an injection device; 11. a syringe; 12. a first dust cap; 13. injecting graduation marks; 2. a drug delivery device; 21. a drug administration tube; 211. a medicine inlet; 22. a non-return device; 221. a first backstop; 222. a second non-return barrier; 223. a flexible shaft; 224. a limiting block; 225. a first baffle; 226. drug administration outlet.

Detailed Description

In order that the utility model may be more fully understood, a more particular description of the utility model will be rendered by reference to the appended drawings, in which several embodiments of the utility model are illustrated, but which may be embodied in different forms and are not limited to the embodiments described herein, which are, on the contrary, provided to provide a more thorough and complete disclosure of the utility model.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly connected to one of ordinary skill in the art to which this utility model belongs, and the knowledge of terms used in the description of this utility model herein for the purpose of describing particular embodiments is not intended to limit the utility model, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-3, the experimental animal nasal administration device comprises an injection device 1 and an administration device 2, wherein the administration device 2 is positioned at one end of the injection device 1, the administration device 2 comprises an administration tube 21, one end of the administration tube 21 is provided with an administration inlet 211, an inverse baffle device 22 is arranged in the administration tube 21, the inverse baffle device 22 comprises a first inverse baffle 221 and a second inverse baffle 222, the first inverse baffle 221 and the second inverse baffle 222 are arranged in a semicircular structure, the second inverse baffle 222 is positioned below the first inverse baffle 221, the outer wall of the top of the first inverse baffle 221 is movably connected with the inner wall of the top of the administration tube 21, the second inverse baffle 222 is in a closed state normally, the second inverse baffle 222 is opened only through an injection external force, when the external force of injection disappears or gradually reduces, the second non-return baffle 222 is gradually closed, the side, close to the drug inlet 211, of the second non-return baffle 222 positioned on the inner wall of the drug administration tube 21 is provided with a limiting block 224, the limiting block 224 limits the second non-return baffle 222 to prevent the backflow of the delivered drug solution, one end, far away from the drug inlet 211, of the drug administration tube 21 is provided with a first baffle 225, the lower part, close to the first baffle 225, of the drug administration tube 21 is communicated with a drug administration outlet 226, the drug solution in the injector 11 is delivered into the nasal cavity of an animal through the drug administration tube 21, the backflow of the delivered drug solution is prevented through the non-return device 22 in the drug administration tube 21, the drug solution is blocked at the drug administration outlet 226 through the first baffle 225, the drug solution is prevented from flowing out into the esophagus and the trachea through the nasal cavity during drug administration, and the drug solution at the drug administration outlet 226 is accurately delivered into the nasal cavity of the animal.

Referring to fig. 1 and 4, the injection device 1 includes an injector 11, a drug outlet of the injector 11 is connected with a drug inlet 211 of a drug administration tube 21, a first dust cover 12 is sleeved outside the drug outlet of the injector 11, an injection scale mark 13 is arranged on the outer wall of the injector 11, the first dust cover 12 seals the drug outlet of the injector 11, external dust is prevented from entering the injector 11, the experimental effect is affected, the injection scale mark 13 can observe the injection dosage in real time, and the injection device is convenient to use and simple in structure.

The specific operation mode of the utility model is as follows:

when the medicine taking device is used, the first dust cover 12 is taken down to suck medicine liquid into the medicine inlet/outlet of the syringe 11, the medicine inlet 211 of the medicine feeding pipe 21 is connected with the medicine inlet/outlet of the syringe 11, one end of the medicine feeding outlet 226 of the medicine feeding pipe 21 is placed in the nasal cavity of an animal, the syringe 11 is pushed, the medicine liquid moves towards the inside of the medicine feeding pipe 21, the second check baffle 222 is opened by external force, the second check baffle 222 is gradually closed when the external injection force disappears or gradually reduces, the limiting block 224 limits the second check baffle 222 to prevent the medicine liquid after conveying from flowing back, the medicine liquid enters the nasal cavity of the animal through the medicine feeding outlet 226, the medicine feeding is finished, the medicine liquid in the syringe 11 is conveyed into the nasal cavity of the animal through the medicine feeding pipe 21, the medicine liquid after conveying is prevented from flowing back through the check device 22 in the medicine feeding pipe 21, the medicine liquid at the medicine feeding outlet 226 is prevented from flowing out of the nasal cavity and flowing down into the esophagus and the air pipe through the first baffle 225, the medicine liquid at the medicine feeding outlet 226 is prevented from being accurately conveyed into the nasal cavity of the animal.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the embodiments described above, but is intended to be within the scope of the utility model, as long as such insubstantial modifications are made by the method concepts and technical solutions of the utility model, or the concepts and technical solutions of the utility model are applied directly to other occasions without any modifications.

Claims

1. The utility model provides an experimental animals is through nose dosing device, includes injection device (1) and dosing device (2), its characterized in that, dosing device (2) are located injection device (1)'s one end, dosing device (2) are including feeding pipe (21), feeding pipe (21) one end is provided with medicine inlet (211), inside non-return device (22) that are provided with of feeding pipe (21), non-return device (22) are including first non-return baffle (221) and second non-return baffle (222), first non-return baffle (221) and second non-return baffle (222) all are semi-circular structure setting, second non-return baffle (222) are located the below of first non-return baffle (221), first non-return baffle (221) top outer wall is connected with feeding pipe (21) top inner wall, second non-return baffle (222) are connected with first non-return baffle (221) activity through flexible axle (223), are located feeding pipe (21) inner wall (21) are close to one side of feeding pipe (211) and are provided with stopper (225) and are close to one side of feeding pipe (21) and are provided with stopper (211) and are kept away from feeding pipe (211).

2. The device for nasal administration of laboratory animals according to claim 1, characterized in that the injection device (1) comprises a syringe (11), the outlet of the syringe (11) being connected to the inlet (211) of the administration tube (21).

3. The device for nasal administration of laboratory animals according to claim 2, wherein the syringe (11) is provided with a first dust cap (12) externally fitted to the drug outlet.

4. A laboratory animal nasal administration device according to claim 3, characterized in that the outer wall of the injector (11) is provided with injection graduation marks (13).