Breathing filter device for lung function detection

Abstract

The utility model discloses a breathing filter device for lung function detection, which comprises a first shell, a second shell, a filter plate and a rotating pipe, the first shell is detachable and is rotatably connected with the second shell, and a breathing channel is formed between the first shell and the second shell; the filter plate is arranged in the second shell, and a plurality of filter parts are arranged on the filter plate in the circumferential direction; the rotating pipe is detachable and is telescopically arranged in the first shell through an adjusting piece, one end of the rotating pipe is located above the filtering part, and the other end of the rotating pipe penetrates through the inlet. Therefore, the filtering plate is installed in the breathing channel, pollution of the environment to the filtering part is effectively reduced, meanwhile, the rotating pipe communicates with the breathing channel through the filtering part, the rotating pipe can be driven to rotate by designing the rotatable first shell, and therefore the filtering part can be replaced conveniently, the pollution risk in the replacement process is reduced, and the use efficiency is improved; and the test accuracy is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a breathing filter device for lung function detection. Background Art

[0002] A pulmonary function tester is a medical device used to measure the volume of air inhaled and exhaled by the lungs. It is mainly used for pulmonary function testing and tracking lung health. When testing pulmonary function, the gas exhaled by the subject passes through a respiratory filter, and pathogens such as bacteria and viruses are adsorbed in the filter, preventing the pathogens exhaled by the patient from contaminating the instrument, and preventing the patient from inhaling pathogens from contaminated instruments.

[0003] Current respiratory filtration devices often use a single filter membrane. When the subject undergoes multiple breath tests, saliva, droplets, residual sputum, food residues, etc. are easily left on the single filter membrane, and these residues will directly affect the accuracy of the test.

[0004] In the Chinese utility model patent with publication number (CN208822778U), a respiratory filter device for lung function testing is disclosed, which relates to the field of medical instruments, and includes a four-way cylinder with an upper port, a lower port and a pair of symmetrical bypass ports, the upper port is used to connect to the mouth of the test subject, the lower port is used to connect to the lung function tester, and a filter plate that can slide along the symmetrical bypass ports is arranged in the four-way cylinder. By designing a slidable filter plate, the filter membrane can be conveniently adjusted according to the needs of the test subject to complete multiple repeated interval inspections, which can avoid cross-infection of respiratory pathogens.

[0005] However, this design still has some defects. For example, it uses a movable filter plate to provide filter membranes for the four-way cylinder in turn. The filter membranes are exposed to the outside air before and after use. The filter membranes before use are easily contaminated by pollutants such as dust and bacteria in the environment, thereby affecting the accuracy of the test. At the same time, if the filter membranes after use are not handled properly, they may also become a source of pollution, posing a potential threat to the environment and human health. Utility Model Content

[0006] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0007] To this end, the purpose of the utility model is to propose a respiratory filter device for lung function testing. The filter plate is installed in the respiratory channel, which effectively reduces the pollution of the environment to the filter part. At the same time, the rotating tube is connected to the respiratory channel through the filter part. The rotating tube can be driven to rotate by designing a rotatable first shell, thereby facilitating the replacement of the filter part, reducing the risk of contamination during the replacement process, improving the use efficiency, and ensuring the accuracy of the test.

[0008] To achieve the above-mentioned purpose, the utility model proposes a respiratory filter device for lung function detection, comprising a first shell, a second shell, a filter plate and a rotating tube, wherein the first shell is detachable and rotatably connected to the second shell, and a breathing passage is formed between the two, and the first shell and the second shell are respectively provided with an inlet and an outlet connected to the breathing passage; the filter plate is arranged in the second shell, and a plurality of filter parts are circumferentially arranged on the filter plate; the rotating tube is detachable and telescopically arranged in the first shell through an adjusting member, one end of the rotating tube is located above the filter part, and the other end of the rotating tube passes through the inlet arrangement.

[0009] In the respiratory filter device for lung function testing of the utility model, the filter plate is installed in the respiratory passage, which effectively reduces the pollution of the environment to the filter part. At the same time, the rotating tube is connected to the respiratory passage through the filter part, and the rotatable first shell is designed to drive the rotating tube to rotate, thereby realizing the rapid replacement of the filter part. This not only greatly reduces the risk of contamination that may be caused during the replacement process, but also significantly improves the use efficiency and ensures the accuracy and reliability of the lung function test results. In addition, the provision of a disposable rotating tube can not only reduce the use cost, but also be beneficial to environmental protection.

[0010] In addition, the respiratory filter device for lung function testing proposed in the application may also have the following additional technical features:

[0011] Specifically, the inlet is located directly above the filter plate.

[0012] Specifically, a telescopic section is provided on the rotating tube, and the adjusting member includes an extension plate, a spring and a pressing block, wherein one side of the extension plate is detachably connected to the rotating tube, and the other side of the extension plate is slidably arranged in a through hole on the first shell; the spring is vertically arranged and its two ends are respectively connected to the first shell and the extension plate; the pressing block is slidably arranged in the through hole, and the top surface of the pressing block is provided with a first plane and a second plane arranged up and down, wherein the first plane and the second plane are connected by an arc, and one end of the extension plate is slidably contacted with the top surface of the pressing block.

[0013] Specifically, the pressing block includes a slider and a handle, wherein the slider is slidably embedded in the through hole, and the handle is arranged through the through hole.

[0014] Specifically, the telescopic section is a bellows structure.

[0015] Specifically, a sealing ring is sleeved on the outer side of the rotating tube, and the sealing ring is arranged adjacent to the filter plate.

[0016] Specifically, a convex ring is sleeved on the outer side of the second shell, and an annular groove matching with the convex ring is arranged on the first shell.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 A schematic cross-sectional view of a respiratory filter device for lung function testing according to an embodiment of the utility model;

[0020] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 3 This is a schematic structural diagram of a respiratory filter device for lung function testing according to an embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the telescopic structure of the rotating tube of a breathing filter device for lung function testing according to one embodiment of the utility model.

[0023] As shown in the figure: 10, first shell; 11, inlet; 12, through hole; 13, annular groove; 20, second shell; 21, outlet; 22, convex ring; 30, breathing channel; 40, filter plate; 41, filter part; 50, rotating tube; 51, telescopic section; 60, adjusting member; 61, extension plate; 62, spring; 63, pressing block; 631, first plane; 632, second plane; 70, slider; 80, handle; 90, sealing ring. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0025] The following is a description of a respiratory filter device for lung function testing according to an embodiment of the present invention in conjunction with the accompanying drawings.

[0026] like Figure 1-Figure 4As shown, the respiratory filter device for lung function detection according to the embodiment of the utility model may include a first shell 10 , a second shell 20 , a filter plate 40 and a rotating tube 50 .

[0027] The first shell 10 is detachable and rotatably connected to the second shell 20 , and a breathing passage 30 is formed therebetween. The first shell 10 and the second shell 20 are respectively provided with an inlet 11 and an outlet 21 connected to the breathing passage 30 .

[0028] The filter plate 40 is disposed in the second housing 20, and a plurality of filter parts 41 are circumferentially disposed on the filter plate 40. It should be noted that the filter plate 40 described in this embodiment is installed in the respiratory passage 30, which can block the respiratory passage 30, so that the respiratory passage 30 is connected to the inlet 11 through the filter part 41, and effectively reduces the pollution of the filter part 41 by the environment.

[0029] The rotating tube 50 is detachable and is telescopically disposed in the first shell 10 through an adjusting member 60 . One end of the rotating tube 50 is located above the filter portion 41 , and the other end of the rotating tube 50 is disposed through the inlet 11 .

[0030] It should be noted that one end of the rotating tube 50 described in this embodiment is used to connect to the mouth of the subject, and the other end of the rotating tube 50 is used to communicate with the respiratory duct 30 through the corresponding filter part 41, and the outlet 21 is used to connect to the pulmonary function tester. In addition, the detachable design of the rotating tube 50 enables it to be used once, which not only reduces the cost of use, but also is beneficial to environmental protection.

[0031] It should be noted that in order to ensure that the rotating tube 50 and the breathing passage 30 are smoothly connected through the filter portion 41, the rotating tube 50 described in this embodiment rotates with the first shell 10 to above the designated filter portion 41. Under the action of the adjusting member 60, the rotating tube 50 can be against the filter plate 40 and can be sleeved on the outside of the designated filter portion 41, so that the sleeved filter portion 41 can filter the gas entering the breathing passage 30 from the rotating tube 50.

[0032] Specifically, in the actual process of performing the respiratory detection operation, the relevant personnel first install the rotating tube 50 in the first shell 10 and rotate it to the specified position, and then position the rotating tube 50 on the filter plate 40 through the adjustment member 60. At this time, the rotating tube 50 is located outside the filter part 41 at the specified position, and then the outlet 21 is connected to the pulmonary function tester, and the end of the rotating tube 50 that passes through the inlet 11 is connected to the mouth of the subject.

[0033] The subject begins to perform the exhalation test, and the exhaled gas sequentially passes through the rotating tube 50 and the filter unit 41 at the designated position into the second housing 20, and then enters the pulmonary function tester through the outlet 21. During the process, the filter unit 41 can filter the exhaled gas.

[0034] When the subject needs to perform breath test again, the positioning tube can be reset by controlling the adjusting member 60, and then the first housing 10 can be rotated so that the first housing 10 drives the rotating tube 50 to rotate to the next filter 41 position, and then the adjusting member 60 is used to position the rotating tube 50, so that the filter 41 can be quickly replaced. This not only greatly reduces the risk of contamination that may be caused during the replacement process, but also significantly improves the use efficiency, ensuring the accuracy and reliability of the pulmonary function test results.

[0035] After the test subject is replaced, the rotating tube 50 and the filter plate 40 can be replaced, and the breathing test can be performed again, thereby reducing the use cost and being beneficial to environmental protection.

[0036] It should be noted that if the filter plate 40 described in this embodiment is detachably connected to the second shell 20, only the filter plate 40 needs to be replaced; if the filter plate 40 is fixedly connected to the second shell 20, the second shell 20 and the filter plate 40 need to be replaced.

[0037] In one embodiment of the present invention, Figure 1 As shown, the inlet 11 is located directly above the filter plate 40. It is understandable that under this positional relationship, the axes of the two ends of the rotating tube 50 are not in the same straight line, so that a certain angle is formed between the two ends of the rotating tube 50. When the subject inhales, the angle of the rotating tube 50 can block droplets, sputum, etc. in the breath, thereby reducing the risk of pollutants such as droplets and sputum contaminating the instrument.

[0038] Furthermore, if Figure 2 and Figure 4 As shown, the rotating tube 50 is provided with a telescopic section 51, which is a bellows structure. The telescopic section 51 is provided so that the rotating tube 50 itself has a telescopic function, which helps to keep the end of the rotating tube 50 connected to the mouth of the subject stable.

[0039] The adjusting member 60 may include an extension plate 61, a spring 62 and a pressing block 63, wherein one side of the extension plate 61 is detachably connected to the rotating tube 50, and the other side of the extension plate 61 is slidably disposed in the through hole 12 on the first shell 10. The spring 62 is vertically disposed and its two ends are respectively connected to the first shell 10 and the extension plate 61. The pressing block 63 is slidably disposed in the through hole 12, and the top surface of the pressing block 63 is provided with a first plane 631 and a second plane 632 disposed up and down, wherein the first plane 631 and the second plane 632 are connected by an arc, and one end of the extension plate 61 is slidably in contact with the top surface of the pressing block 63.

[0040] It should be noted that the extension plate 61 and the rotating tube 50 described in this embodiment can be detachably connected by means of snapping, embedding, magnetic attraction, etc., so as to facilitate the replacement of the rotating tube 50.

[0041] In addition, the spring 62 described in this embodiment is always in a compressed state, which helps to assist in positioning the rotating tube 50 .

[0042] Specifically, when the rotating tube 50 is telescopically adjusted by the adjusting member 60, the pressing block 63 is first controlled to move in the through hole 12, so that the bottom of the extension plate 61 slides and contacts the first plane 631 or the second plane 632. When the bottom of the extension plate 61 contacts the first plane 631, there is a certain distance between the rotating tube 50 and the filter plate 40. The rotating tube 50 is in a rotatable state at this time, and the rotating tube 50 can be driven to rotate synchronously through the first shell 10, and the filter part 41 can be replaced.

[0043] When the extension plate 61 moves and makes its bottom contact with the second plane 632, the rotating tube 50 is stretched and contacts with the filter plate 40. The rotating tube 50 is in a positioned state and the subject can perform a breathing detection operation.

[0044] Furthermore, if Figure 2 The pressing block 63 shown includes a slider 70 and a handle 80, wherein the slider 70 is slidably embedded in the through hole 12, and the handle 80 is arranged to pass through the through hole 12. The setting of the handle 80 is conducive to the movement and adjustment of the pressing block 63, and the setting of the slider 70 helps to stabilize the movement of the pressing block 63 in the through hole 12.

[0045] In one embodiment of the present invention, Figure 1 As shown, a sealing ring 90 is sleeved on the outer side of the rotating tube 50, and the sealing ring 90 is arranged adjacent to the filter plate 40. It can be understood that when the rotating tube 50 and the filter plate 40 are against each other, the sealing ring 90 is arranged to help increase the sealing of the connection between the two.

[0046] In one embodiment of the present invention, Figure 1 As shown, a convex ring 22 is sleeved on the outer side of the second shell 20 , and an annular groove 13 matching with the convex ring 22 is provided on the first shell 10 . During the rotation of the first shell 10 , the annular groove 13 slides on the outer side of the convex ring 22 .

[0047] In summary, in the respiratory filter device for lung function testing of the embodiment of the utility model, the filter plate is installed in the respiratory passage, which effectively reduces the pollution of the environment to the filter part. At the same time, the rotating tube is connected to the respiratory passage through the filter part, and the rotatable first shell is designed to drive the rotating tube to rotate, thereby realizing the rapid replacement of the filter part. This not only greatly reduces the risk of pollution that may be caused during the replacement process, but also significantly improves the use efficiency, ensuring the accuracy and reliability of the lung function test results. In addition, the provision of a disposable rotating tube can not only reduce the cost of use, but also is beneficial to environmental protection.

[0048] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0050] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A respiratory filter device for lung function testing, characterized in that: It comprises a first shell (10), a second shell (20), a filter plate (40) and a rotating tube (50), wherein: The first shell (10) is detachable and rotatably connected to the second shell (20), and a breathing passage (30) is formed between the two. The first shell (10) and the second shell (20) are respectively provided with an inlet (11) and an outlet (21) connected to the breathing passage (30); The filter plate (40) is arranged in the second shell (20), and a plurality of filter parts (41) are circumferentially arranged on the filter plate (40); The rotating tube (50) is detachable and is telescopically arranged in the first shell (10) via an adjusting member (60); one end of the rotating tube (50) is located above the filter portion (41), and the other end of the rotating tube (50) is arranged to pass through the inlet (11).

2. The respiratory filter device for lung function testing according to claim 1, characterized in that: The inlet (11) is located directly above the filter plate (40).

3. The respiratory filter device for lung function testing according to claim 1 or 2, characterized in that: The rotating tube (50) is provided with a telescopic section (51), and the adjusting member (60) comprises an extension plate (61), a spring (62) and a pressing block (63), wherein: One side of the extension plate (61) is detachably connected to the rotating tube (50), and the other side of the extension plate (61) is slidably disposed in a through hole (12) on the first shell (10); The spring (62) is vertically arranged and its two ends are respectively connected to the first shell (10) and the extension plate (61); The pressing block (63) is slidably arranged in the through hole (12), and the top surface of the pressing block (63) is provided with a first plane (631) and a second plane (632) arranged up and down, wherein the first plane (631) and the second plane (632) are connected by an arc, and one end of the extension plate (61) is in sliding contact with the top surface of the pressing block (63).

4. The respiratory filter device for lung function testing according to claim 3, characterized in that: The pressing block (63) comprises a slider (70) and a handle (80), wherein the slider (70) is slidably embedded in the through hole (12), and the handle (80) is arranged to pass through the through hole (12).

5. The respiratory filter device for lung function testing according to claim 4, characterized in that: The telescopic section (51) is a bellows structure.

6. The respiratory filter device for lung function testing according to claim 1, characterized in that: A sealing ring (90) is sleeved on the outer side of the rotating tube (50), and the sealing ring (90) is arranged adjacent to the filter plate (40).

7. The respiratory filter device for lung function testing according to claim 1, characterized in that: The outer side of the second shell (20) is sleeved with a convex ring (22), and the first shell (10) is provided with an annular groove (13) matching with the convex ring (22).

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