Anti-backflow external liquid medicine injection device

Abstract

An anti-backflow external liquid medicine injection device comprises a bottle body and a bottle neck, the bottle body is of a tower-shaped corrugated bottle body structure, the bottle body is connected with threads on the inner wall of a liquid inlet of the bottle neck through threads on the top, an annular baffle is arranged in the liquid inlet of the bottle neck, an anti-backflow plug is placed on the annular baffle, and the anti-backflow plug is provided with a spherical sealing surface. And a plurality of bulges are arranged at the liquid inlet above the anti-backflow plug. The non-return effect of external liquid medicine injection is achieved through the gap between the spherical sealing face at the bottom of the anti-backflow plug and the protrusion at the top of the liquid inlet, meanwhile, the tower-shaped corrugated bottle body is adopted, the pressure intensity of liquid medicine injection is improved, and the problem that liquid medicine squeezed into the body flows back due to the pressure difference between the interior and the exterior is solved. The utility model has the advantages of ingenious design, convenience in use, safety and sanitation.

Description

Technical Field

[0001] The utility model relates to the technical field of external medicine liquid injection devices, and particularly relates to an external medicine liquid injection device with anti-backflow function. Background Art

[0002] When injecting external medicine liquid, for example, in the clinical treatment of constipation, glycerol enema needs to be injected from the anus. At present, the container for holding glycerol enema is composed of a soft plastic bag and an injection tube arranged at the front end of the soft plastic bag. This kind of container for holding glycerol enema has the following problems: the amount of glycerol enema held in the tube is small. For patients with intractable constipation, multiple bottles of glycerol enema are needed at one time to relieve constipation, and the injection tube needs to be inserted into the patient's anus multiple times, which brings great discomfort to the patient physically and mentally; during use, due to the pressure difference between inside and outside the body, the lubricant squeezed into the body will flow back. Therefore, a lot of lubricant does not really enter the patient's anus for lubrication, resulting in waste. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an external medicine liquid injection device with anti-backflow function to solve the problems of small filling volume and waste caused by backflow of the injected medicine liquid in the prior art.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0005] An external medicine liquid injection device with anti-backflow function includes a bottle body and a bottleneck. The bottle body has a tower-shaped corrugated bottle body structure. The bottle body is connected to the inner wall of the liquid inlet of the bottleneck through the thread at the top. An annular baffle is arranged inside the liquid inlet of the bottleneck, and an anti-backflow plug is placed on the annular baffle. The anti-backflow plug has a spherical sealing surface, and several protrusions are arranged at the liquid inlet above the anti-backflow plug.

[0006] When the external medicine liquid injection device with anti-backflow function of the utility model is in use, the liquid outlet at the top of the bottleneck is inserted into the anus, and the bottle body is squeezed. The bottle body has a corrugated structure with a narrow top and a wide bottom. Squeezing forms pressure, so that the medicine liquid in the bottle body pushes up the anti-backflow plug at the liquid inlet of the bottleneck. The protrusions at the top of the liquid inlet contact the anti-backflow plug, and a liquid passage gap is formed between the anti-backflow plug and the annular baffle. The medicine liquid passes through the gap between the protrusions at the top of the liquid inlet from the liquid passage gap and is finally injected into the intestine through the liquid outlet to soften the dry feces. When the medicine liquid is affected by the pressure difference between inside and outside the body and flows back into the bottleneck bottle, it will press the anti-backflow plug at the liquid inlet of the bottleneck back. The spherical sealing surface of the anti-backflow plug is closely attached to the annular baffle, avoiding the backflow of the medicine liquid.

[0007] The utility model realizes the effect of preventing backflow of external medicine liquid injection by using the gap between the spherical sealing surface at the bottom of the anti-backflow plug and the protrusions at the top of the liquid inlet. At the same time, the tower-shaped corrugated bottle body is adopted to increase the pressure of the medicine liquid injection, solve the problem of backflow of the medicine liquid squeezed into the body due to the pressure difference between inside and outside the body, and has the advantages of ingenious design, convenient use, safety and hygiene. Brief Description of the Drawings

[0008] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0009] Figure 1 is a schematic structural view of the present utility model;

[0010] Figure 2 is a schematic cross-sectional structural view of the bottleneck of the present utility model;

[0011] Figure 3 is a schematic structural view of the bottle body of the present utility model.

[0012] In the figure, 1 is the bottle body, 2 is the bottleneck, 11 is the thread, 21 is the liquid inlet, 22 is the liquid outlet, 23 is the annular baffle, 24 is the anti-backflow plug, 25 is the protrusion, and 26 is the thread. Detailed Embodiment

[0013] As Figure 1 , Figure 2 and Figure 3 shown, an external medicine liquid injection device with anti-backflow function includes a bottle body 1 and a bottleneck 2. The bottle body 1 has a tower-shaped corrugated bottle body structure. The bottle body 1 is connected to the inner wall thread 26 of the liquid inlet 21 of the bottleneck 2 through the thread 11 at the top. An annular baffle 23 is arranged inside the liquid inlet 21 of the bottleneck 2, and an anti-backflow plug 24 is placed on the annular baffle 23. The anti-backflow plug 24 has a spherical sealing surface, and several protrusions 25 are arranged at the liquid inlet above the anti-backflow plug 24.

[0014] When the external medicine liquid injection device with anti-backflow function of the present utility model is in use, the liquid outlet 22 at the top of the bottleneck is inserted into the anus, and the bottle body 1 is squeezed. The bottle body has a corrugated structure with a narrow top and a wide bottom. The squeezing forms pressure, so that the medicine liquid in the bottle body pushes up the anti-backflow plug 24 at the liquid inlet of the bottleneck. The protrusions at the top of the liquid inlet contact the anti-backflow plug. A liquid passage gap is formed between the anti-backflow plug 24 and the annular baffle 23. The medicine liquid passes through the gap between the protrusions 25 at the top of the liquid inlet through the liquid passage gap and is finally injected into the intestine through the liquid outlet, softening the dry stool. When the medicine liquid is under the pressure difference inside and outside the body and flows back into the bottleneck bottle, the anti-backflow plug at the liquid inlet of the bottleneck will be pressed back, and the spherical sealing surface of the anti-backflow plug is closely attached to the annular baffle, avoiding the backflow of the medicine liquid.

Claims

1. An external medicine liquid injection device with anti-backflow function, comprising a bottle body and a bottleneck, characterized in that the bottle body has a tower-shaped corrugated bottle body structure, with a structure of narrower at the top and wider at the bottom, and the bottle body is connected to the inner wall thread of the liquid inlet of the bottleneck through the thread at the top. An annular baffle is arranged inside the liquid inlet of the bottleneck, and an anti-backflow plug is placed on the annular baffle. The anti-backflow plug has a spherical sealing surface. Several protrusions are arranged at the liquid inlet above the anti-backflow plug. When pressure is applied by squeezing so that the medicine liquid in the bottle body pushes up the anti-backflow plug at the liquid inlet of the bottleneck, the protrusions at the top of the liquid inlet come into contact with the anti-backflow plug, and a liquid passage gap is formed between the anti-backflow plug and the annular baffle.

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