Disposable oral nozzle externally connected with spray

Abstract

The utility model relates to an external disposable spray mouthpiece which comprises a mouthpiece body composed of a first straight pipe and a second straight pipe which are integrally formed, the interior of the first straight pipe is communicated with the interior of the second straight pipe, a one-way check valve is arranged in the first straight pipe, and the one-way check valve comprises a blocking piece and a sealing piece. The blocking piece is used for dividing the interior of the first straight pipe into two cavities which are not communicated with each other, a square hole is formed in the center of the blocking piece, semicircular clamping grooves are formed in the left side and the right side of the top end of the square hole, the periphery of the sealing piece is attached to the square hole, and cylindrical clamping columns corresponding to the semicircular clamping grooves are arranged at the top end of the sealing piece. The side, away from the second straight pipe, of the bottom end of the sealing piece is provided with a protrusion, the protrusion is attached to the surface of the end, away from the second straight pipe, of the blocking piece, and the one-way check valve in the first straight pipe can prevent medicine flowing from the second straight pipe into the first straight pipe from flowing back, so that the use end is separated from the medicine end. And medicine source pollution caused by backflow of the medicine contacted with the oral cavity is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a disposable mouthpiece externally connected to a sprayer. Background Art

[0002] Due to the influence of aging and respiratory infectious diseases, the number of patients with chronic respiratory diseases is huge. As a commonly used drug for treating respiratory diseases, inhalation preparations are becoming increasingly popular. There are various metered-dose inhalers (MDIs) of inhalation drugs on the current market, such as salbutamol sulfate aerosol, fluticasone propionate aerosol, ipratropium bromide aerosol, and budesonide / formoterol aerosol. Such drugs require patients to cooperate with breathing during medication, and the same fixed mouthpiece is used repeatedly. There are problems of uncleanliness or incomplete cleaning after use, which may cause pollution and infection risks. At the same time, incorrect medication methods often occur, and patients exhale into the mouthpiece, causing blockage of the drug outlet and affecting drug use. This technology proposes to connect a disposable mouthpiece with an inhalation one-way valve at the front end of the inhaled drug to achieve the purpose of cleanliness, infection prevention, and preventing drug particles in exhaled air from blocking the drug outlet. Content of the Utility Model

[0003] The purpose of the utility model is to provide a disposable mouthpiece externally connected to a sprayer to solve the problems existing in the above-mentioned prior art.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions:

[0005] A disposable mouthpiece externally connected to a sprayer includes a mouthpiece composed of a first straight tube and a second straight tube. One end of the second straight tube is provided with a bend angle, and one end of the first straight tube is inserted into the bend angle end of the second straight tube. The included angle between the second straight tube and the first straight tube is 90° - 120°. The interiors of the first straight tube and the second straight tube are connected. A one-way check valve is arranged inside the first straight tube. The one-way check valve includes a barrier sheet and a closing sheet. The barrier sheet is used to divide the interior of the first straight tube into two non-communicating chambers. A square hole is arranged at the center of the barrier sheet. Semi-circular card slots are arranged on both the left and right sides at the top of the square hole. The periphery of the closing sheet fits with the square hole. Cylindrical card columns corresponding to the semi-circular card slots are arranged at the top of the closing sheet. A protrusion is arranged on the bottom end of the closing sheet on the side away from the second straight tube, and the protrusion fits with the surface of the end of the barrier sheet away from the second straight tube.

[0006] By adopting the above technical solution, the one-way check valve inside the first straight tube can prevent the drug flowing from the second straight tube into the first straight tube from flowing back, separating the use end from the drug end and avoiding the pollution of the drug source caused by the backflow of the drug that has contacted the oral cavity.

[0007] In a further embodiment, a wall thickness reduction structure is provided on the outer peripheral edge of one end of the first straight pipe away from the second straight pipe, and a sterile silica gel layer with a thickness of 0.01 mm - 0.03 mm is provided at the thin-walled part of the first straight pipe.

[0008] In a further embodiment, anti-slip patterns are provided on the outer wall of one end of the first straight pipe connected to the second straight pipe.

[0009] In a further embodiment, a silica gel ring is provided inside one end of the second straight pipe away from the first straight pipe.

[0010] In a further embodiment, an acute angle is chamfered at the peripheral edge of one end of the second straight pipe away from the first straight pipe.

[0011] In a further embodiment, an acute angle is rounded at the peripheral edge of the thin wall of the first straight pipe.

[0012] In summary, the present utility model has the following beneficial effects:

[0013] 1. The one-way check valve inside the first straight pipe can prevent the drug flowing from the second straight pipe into the first straight pipe from flowing back, separating the use end from the drug end, and avoiding the effect of drug source pollution caused by the backflow of the drug that has contacted the oral cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the structure of the one-way check valve of the present utility model.

[0016] In the figure, 1, the first straight pipe; 2, the second straight pipe; 3, the one-way check valve; 31, the barrier piece; 32, the closing piece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0018] Among them, the same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached Figure 1In the directions herein, the terms "bottom surface" and "top surface", "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this specification, "a plurality of" means two or more unless otherwise specifically defined.

[0019] Embodiment 1:

[0020] As Figure 1-2 shown, a disposable oral mouthpiece for an external spray includes a mouthpiece composed of a first straight tube 1 and a second straight tube 2. One end of the second straight tube 2 is provided with a bend. One end of the first straight tube 1 is inserted into the bent end of the second straight tube 2. The included angle between the second straight tube 2 and the first straight tube 1 is 90° - 120°. The interiors of the first straight tube 1 and the second straight tube 2 are in communication. A one-way check valve 3 is arranged inside the first straight tube 1. The one-way check valve 3 includes a barrier piece 31 and a closing piece 32. The barrier piece 31 is used to divide the interior of the first straight tube 1 into two non-communicating chambers. A square hole is arranged at the center of the barrier piece 31. Semi-circular clamping grooves are arranged on the left and right sides at the top of the square hole. The periphery of the closing piece 32 fits with the square hole. Cylindrical clamping posts corresponding to the semi-circular clamping grooves are arranged at the top of the closing piece 32. A protrusion is arranged on the bottom end of the closing piece 32 on the side away from the second straight tube 2. The protrusion fits with the surface of the end of the barrier piece 31 away from the second straight tube 2. A wall thickness reduction structure is arranged on the outer periphery of the end of the first straight tube 1 away from the second straight tube 2. A sterile silica gel layer with a thickness of 0.01 mm - 0.03 mm is arranged at the thin-walled part of the first straight tube 1. Anti-slip threads are arranged on the outer wall of the end of the first straight tube 1 connected to the second straight tube 2. A silica gel ring is arranged inside the end of the second straight tube 2 away from the first straight tube 2. The periphery of the end of the second straight tube 2 away from the first straight tube 2 is in an acute angle chamfered shape. The periphery of the thin wall of the first straight tube 1 is in an acute angle rounded shape.

[0021] Specific implementation process: The one-way check valve 3 inside the first straight tube 1 can prevent the drug flowing into the first straight tube 1 from the second straight tube 2 from flowing back, separating the use end from the drug end, and avoiding the effect of drug source pollution caused by the backflow of the drug that has come into contact with the oral cavity.

[0022] When in use, the medicine bottle needs to be inserted into the inside of the second straight tube 2 upside down from the top of the second straight tube 2, and then the rear end of the first straight tube 1 is inserted into the bending part at the bottom of the second straight tube 2. In this way, when pressing the bottom of the medicine bottle, the medicine spray of the medicine bottle will flow into the inside of the first straight tube 1 and enter the user's oral cavity from the front end of the first straight tube 1. The one-way check valve 3 will open inward from the middle so that the medicine can only move unidirectionally inside the first straight tube 1, avoiding the backflow of the medicine. After use, the first straight tube 1 can be discarded to avoid bacterial accumulation and infection caused by multiple uses.

[0023] In the embodiments disclosed by the present utility model, terms such as "installation", "connection", "attachment", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "attachment" can be a direct attachment or an indirect attachment through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments disclosed by the present utility model can be understood according to specific circumstances.

[0024] This specific embodiment is only an interpretation of the present utility model and is not a limitation thereof. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. A disposable mouthpiece externally connected to a sprayer, characterized in that: The mouthpiece includes a first straight tube (1) and a second straight tube (2). One end of the second straight tube (2) is provided with a bend. One end of the first straight tube (1) is inserted into the bent end of the second straight tube (2). The included angle between the second straight tube (2) and the first straight tube (1) is 90°-120°. The interiors of the first straight tube (1) and the second straight tube (2) are in communication. A one-way check valve (3) is arranged inside the first straight tube (1). The one-way check valve (3) includes a barrier sheet (31) and a sealing sheet (32). The barrier sheet (31) is used to divide the interior of the first straight tube (1) into two non-communicating chambers. A square hole is arranged at the center of the barrier sheet (31). Semi-circular card slots are arranged on the left and right sides at the top of the square hole. The periphery of the sealing sheet (32) fits with the square hole. Cylindrical card columns corresponding to the semi-circular card slots are arranged at the top of the sealing sheet (32). A protrusion is arranged on the side of the bottom end of the sealing sheet (32) away from the second straight tube (2). The protrusion fits with the surface of the end of the barrier sheet (31) away from the second straight tube (2).

2. The disposable oral mouthpiece externally connected to the spray according to claim 1, characterized in that: A tube wall thinning structure is arranged on the outer peripheral edge of the end of the first straight tube (1) away from the second straight tube (2). A sterile silica gel layer with a thickness of 0.01 mm - 0.03 mm is arranged at the thin wall of the first straight tube (1).

3. A disposable mouthpiece externally connected to a sprayer according to claim 1, characterized in that: Anti-slip patterns are arranged on the outer wall of the end of the first straight tube (1) connected to the second straight tube (2).

4. A disposable oral mouthpiece externally connected to a sprayer according to claim 1, characterized in that: A silica gel ring is arranged inside the end of the second straight tube (2) away from the first straight tube (1).

5. The disposable oral nozzle externally connected to a sprayer according to claim 1, characterized in that: An acute angle is chamfered at the periphery of the end of the second straight tube (2) away from the first straight tube (1).

6. The disposable oral mouthpiece externally connected to the sprayer according to claim 1, wherein: An acute angle is rounded at the periphery of the thin wall of the first straight tube (1).

Images