Blowing nozzle structure for lung function test

Abstract

The utility model discloses a blowing nozzle structure for lung function testing, which comprises a blowing nozzle cover body, a connecting pipe capable of filtering blown air is arranged at the bottom of the blowing nozzle cover body, a filter screen is arranged in the connecting pipe, a detachable auxiliary blowing pipe is arranged in the blowing nozzle cover body and corresponds to the position of the connecting pipe, and the auxiliary blowing pipe is connected with the connecting pipe. The bottom of the connecting pipe is fixedly connected with a connecting nozzle used for being connected with the connecting pipe. According to the lung function instrument, the filter screen is arranged, air blown out by a patient can be effectively filtered, so that impurities such as saliva and secretions in exhaled air are effectively prevented from entering the lung function instrument, cross infection is effectively prevented, meanwhile, the detachable auxiliary blowpipe is arranged, and the auxiliary blowpipe can be conveniently used according to the requirements of the patient. When the blowing nozzle is used, the auxiliary blowing pipe is inserted into the connecting pipe to blow air in the mouth, or the auxiliary blowing pipe can be pulled out, and the blowing nozzle cover body covers the mouth to blow air, so that the use flexibility of the blowing nozzle is improved.

Description

Technical Field

[0001] This utility model relates to the field of mouthpiece technology, and in particular to a mouthpiece structure for lung function testing. Background Technology

[0002] Lung capacity is often measured during physical examinations or routine checkups by internists. The lung capacity test involves placing a mouthpiece over a person's face, aligning their mouth with the hole in the mouthpiece, and then blowing air through a tube into the testing instrument.

[0003] For example, Chinese patent CN211022674U discloses a mouthpiece structure for pulmonary function testing, including a mouthpiece cover and a connecting tube. The mouthpiece cover has a mouthpiece column at the air inlet, and a blowing hole communicating with the air inlet is opened at the center of the mouthpiece column. The mouthpiece column is shaped like a frustum with a larger bottom and a smaller top, and the top of the mouthpiece column has a flattened mouth structure. A limiting cylinder that matches the shape of the outer wall of the mouthpiece column is coaxially fitted outside the mouthpiece column. The distance between the inner wall of the limiting cylinder and the outer wall of the mouthpiece column is 8-10mm. The limiting cylinder is made of silicone material. A clamping cylinder is coaxially fitted outside the connecting tube. The distance between the outer wall of the connecting tube and the inner wall of the clamping cylinder matches the wall thickness of the connecting tube of the pulmonary function tester.

[0004] Although the above technical solutions have solved the corresponding technical problems, they still have the following drawbacks:

[0005] The above-mentioned technical solution is not convenient for filtering the gas exhaled by the patient. Impurities such as saliva and secretions in the patient's exhaled gas can easily enter the pulmonary function instrument, which can easily cause cross-infection. Utility Model Content

[0006] The purpose of this invention is to provide a mouthpiece structure for pulmonary function testing. It not only effectively filters the patient's exhaled air by incorporating a filter screen, thus preventing impurities such as saliva and secretions from entering the pulmonary function instrument and effectively preventing cross-infection, but also features a detachable auxiliary mouthpiece. This allows the mouthpiece to be inserted into the connecting tube for oral inhalation, or removed and the mouthpiece cover placed over the mouth for inhalation, thereby improving the flexibility of the invention.

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] A mouthpiece structure for lung function testing includes:

[0009] The mouthpiece cover has a connecting pipe at its bottom for filtering the blown air, a filter screen installed inside the connecting pipe, and a detachable auxiliary blowing pipe installed inside the mouthpiece cover corresponding to the position of the connecting pipe.

[0010] In the above-mentioned mouthpiece structure for pulmonary function testing, a connecting nozzle for connecting the connecting tube is fixedly connected to the bottom of the connecting tube, and a sealing ring is provided at the bottom of the connecting tube corresponding to the position of the connecting nozzle. The sealing ring increases the airtightness of the connection between the connecting nozzle and the pulmonary function instrument.

[0011] The above-mentioned mouthpiece structure for pulmonary function testing includes an auxiliary blowing tube that matches the connecting tube. A mouthpiece is installed at the top of the connecting tube, which provides mouth-to-mouth airflow to the patient.

[0012] In the above-mentioned mouthpiece structure for lung function testing, the insertion tube is fitted with a sealing ring that matches the connecting tube. The sealing ring increases the sealing performance of the insertion tube when it is inserted into the connecting tube.

[0013] In the above-mentioned mouthpiece structure for lung function testing, a limiting plate is installed at the bottom of the mouthpiece and at the position corresponding to the insertion tube, so as to prevent the mouthpiece from being inserted into the inside of the connecting tube.

[0014] The above-mentioned mouthpiece structure for lung function testing includes a sealing abutment ring at the edge of the mouthpiece cover. By providing the sealing abutment ring, the sealing performance of the mouthpiece cover against the patient's mouth is increased.

[0015] The above-mentioned mouthpiece structure for lung function testing has a gripping anti-slip texture on the mouthpiece cover corresponding to the position of the connecting tube. The gripping anti-slip texture increases the stability of the mouthpiece cover when pressed against the mouth by the user.

[0016] This utility model has at least the following beneficial effects:

[0017] The mouthpiece structure for pulmonary function testing provided by this utility model can effectively filter the gas exhaled by the patient by setting a filter screen, thereby effectively preventing impurities such as saliva and secretions in the exhaled air from entering the pulmonary function instrument and effectively preventing cross-infection. At the same time, by setting a detachable auxiliary blow tube, the auxiliary blow tube can be inserted into the connecting tube for mouth blowing according to the patient's needs, or the auxiliary blow tube can be removed and the mouthpiece cover can be placed over the mouth for blowing, thereby improving the flexibility of use of this utility model. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the mouthpiece structure for lung function testing according to this utility model;

[0020] Figure 2 This is a schematic diagram of the connecting tube in the mouthpiece structure for lung function testing of this utility model;

[0021] Figure 3 This is a schematic diagram of the auxiliary blowpipe in the mouthpiece structure for lung function testing of this utility model.

[0022] Explanation of icon numbers:

[0023] 1. Mouthpiece cover; 2. Connecting pipe; 3. Auxiliary blowing pipe;

[0024] 101. Sealing rubber ring; 102. Anti-slip grip texture;

[0025] 201. Filter screen; 202. Connecting nozzle; 203. Sealing ring;

[0026] 301. Inserting a connecting pipe; 302. Holding a mouthpiece in the mouth;

[0027] 3011, sealing ring; 3021, limit plate. Detailed Implementation

[0028] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0029] Please refer to Figures 1 to 3 As shown, an embodiment of the present invention provides a mouthpiece structure for lung function testing, comprising: a mouthpiece cover 1, a connecting pipe 2 for filtering the blown air is provided at the bottom of the mouthpiece cover 1, a filter screen 201 is installed inside the connecting pipe 2, and a detachable auxiliary blowpipe 3 is installed inside the mouthpiece cover 1 at a position corresponding to the connecting pipe 2.

[0030] By adopting the above technical solution, not only can the air exhaled by the patient be effectively filtered by setting the filter screen 201, thus effectively preventing impurities such as saliva and secretions in the exhaled air from entering the pulmonary function instrument and effectively preventing cross-infection, but also, by setting the detachable auxiliary blowpipe 3, the auxiliary blowpipe 3 can be inserted into the connecting tube 2 for mouth blowing according to the patient's needs, or the auxiliary blowpipe 3 can be removed and the mouthpiece cover 1 can be placed over the mouth for blowing, thereby improving the flexibility of the use of this utility model.

[0031] Please refer to Figures 1 to 3 As shown, a connecting nozzle 202 for connecting the connecting tube 2 is fixedly connected to the bottom of the connecting tube 2. A sealing ring 203 is provided at the bottom of the connecting tube 2 and at the position corresponding to the connecting nozzle 202. The sealing ring 203 increases the sealing between the connecting nozzle 202 and the pulmonary function instrument.

[0032] Please refer to Figures 1 to 3 As shown, the auxiliary blowpipe 3 includes an insertion tube 301 that matches the connecting tube 2. A mouthpiece 302 is installed on the top of the insertion tube 301, which can provide mouth-to-mouth airflow to the patient. A sealing ring 3011 that matches the connecting tube 2 is fitted on the insertion tube 301, which increases the sealing performance of the insertion tube 301 when inserted into the connecting tube 2. A limiting plate 3021 is installed at the bottom of the mouthpiece 302 and at the position corresponding to the insertion tube 301, which prevents the mouthpiece 302 from being inserted into the connecting tube 2.

[0033] Please refer to Figures 1 to 3 As shown, a sealing abutment ring 101 is provided at the edge of the mouthpiece cover 1. By providing the sealing abutment ring 101, the sealing performance of the mouthpiece cover 1 against the patient's mouth is increased. A gripping anti-slip texture 102 is provided on the mouthpiece cover 1 at the position corresponding to the connecting tube 2. By providing the gripping anti-slip texture 102, the user can press the mouthpiece cover 1 against the mouth without it being shaped.

[0034] The working principle of this utility model is as follows: by setting a filter screen 201 inside the connecting tube 2, the gas exhaled by the patient can be effectively filtered, effectively preventing impurities such as saliva and secretions in the exhaled gas from entering the pulmonary function instrument and effectively preventing cross-infection. At the same time, by setting a detachable auxiliary blowing tube 3, the insertion tube 301 can be inserted into the connecting tube 2 for mouth blowing according to the patient's needs, or the auxiliary blowing tube 3 can be removed and the mouthpiece cover 1 can be placed over the mouth for blowing, thereby improving the flexibility of the utility model.

[0035] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A mouthpiece structure for lung function testing, comprising a mouthpiece cover (1), characterized in that, The bottom of the mouthpiece cover (1) is provided with a connecting pipe (2) for filtering the blown air. A filter screen (201) is installed inside the connecting pipe (2). A detachable auxiliary blowing pipe (3) is installed inside the mouthpiece cover (1) at a position corresponding to the connecting pipe (2).

2. A mouthpiece structure for pulmonary function testing according to claim 1, wherein: The bottom of the connecting tube (2) is fixedly connected to a connecting nozzle (202) for connecting the connecting tube (2), and a sealing ring (203) is provided at the bottom of the connecting tube (2) and at the position corresponding to the connecting nozzle (202).

3. The mouthpiece structure for pulmonary function testing according to claim 2, characterized in that: The auxiliary blowpipe (3) includes a plug tube (301) that matches the connecting tube (2), and a mouthpiece (302) is installed on the top of the plug tube (301).

4. A mouthpiece structure for pulmonary function testing according to claim 3, wherein: The insertion tube (301) is fitted with a sealing ring (3011) that matches the connecting tube (2).

5. A mouthpiece structure for pulmonary function testing according to claim 4, wherein: A limiting plate (3021) is installed at the bottom of the mouthpiece (302) and at the position corresponding to the insertion tube (301).

6. A mouthpiece structure for pulmonary function testing according to claim 5, wherein: A sealing abutment ring (101) is provided at the edge of the mouthpiece cover (1).

7. The mouthpiece structure for pulmonary function testing according to claim 6, characterized in that: The mouthpiece cover (1) is provided with gripping anti-slip texture (102) at the position corresponding to the connecting tube (2).

Images