Disposable filter tip for lung function instrument

Abstract

The utility model discloses a disposable filter tip for a pulmonary function instrument, and belongs to the technical field of filter tips. The meshing part and the inserting part are connected to the upper end and the lower end of the filtering part respectively, the filtering part comprises two symmetrically-arranged conical shells and a filtering layer arranged between the conical shells, and the two conical shells are connected in a sealed mode; a first sealing piece is arranged in the inserting part and is an annular body made of rubber materials, and an inner ring of the bottom of the first sealing piece is arranged in a fillet mode. According to the disposable filter tip for the pulmonary function instrument, due to the arrangement of the first sealing piece, the insertion part and the connecting pipe of the handheld handle of the pulmonary function instrument can be connected more tightly, so that the sealing effect is achieved, the end of the connecting pipe is blocked through the first step part, the sealing effect is further improved, gas leakage is prevented, and the service life of the filter tip is prolonged. And the detection accuracy is ensured.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of filter tips, in particular to a filter tip for a disposable lung function instrument. BACKGROUND

[0002] A lung function instrument is a device used to assess and measure a person's lung health, mainly used for diagnosing and monitoring the function of the respiratory system, such as chronic obstructive pulmonary disease, asthma and other diseases. Through lung function testing, multiple important lung function parameters can be measured, such as vital capacity, maximum expiratory flow, forced vital capacity, etc. The disposable lung function instrument filter tip is an accessory used during the lung function instrument testing process, which is usually a device connected to the lung function instrument. Patients blow through it to measure.

[0003] The current lung function instrument filter tip is directly connected to the connecting pipe of the lung function instrument handle by plug-in connection, so as to assemble and use. However, during the production process, there will inevitably be small manufacturing tolerances. There will be a small gap between some filter tips and the handle when plugging in. The time gap during the patient's blowing operation will cause gas leakage, resulting in incomplete entry of the gas into the instrument sensor, causing measurement errors.

[0004] Therefore, it is necessary to provide a disposable lung function instrument filter tip to solve the above problems.

[0005] It should be noted that the above information disclosed in the background section of the present application is only used to understand the background technology of the concept of the present application, and therefore, it can contain information that does not constitute prior art. SUMMARY

[0006] Based on the above problems existing in the prior art, the problem to be solved by the present application is to provide a disposable lung function instrument filter tip to solve the problem of gas leakage caused by the gap between some filter tips and the lung function instrument connection.

[0007] The technical solution adopted by the application to solve the technical problem is: a disposable lung function instrument filter tip, comprising a filter part and a bite part and a plug-in part connected to the upper and lower ends of the filter part, respectively, the filter part comprising two symmetrical conical shells and a filter layer arranged between the conical shells, and the two conical shells are sealingly connected.

[0008] The inside of the plug-in part is provided with a first sealing member, the first sealing member is an annular body made of rubber, and the inner circle of the bottom of the first sealing member is provided with a rounded corner.

[0009] Further, a first connecting groove is formed in the inside of the plug-in part, and the first sealing member is connected to the inside of the first connecting groove.

[0010] Further, a first stepped portion is formed on the top of the first sealing member.

[0011] Further, the first connecting groove is internally provided with a first limiting block, and four groups of the first limiting block are equidistantly arranged along the circumferential direction of the first limiting block.

[0012] Further, the filter layer comprises a non-woven fabric layer, a lava cloth layer and a filter screen layer which are superposed in the conical shell.

[0013] Further, the top of the occlusion part is provided with a rounded corner, and the outer side of the occlusion part is provided with a groove, and the groove is symmetrically provided with two groups.

[0014] Further, the outer side of the plug-in part is provided with a second connecting groove, the outer side of the second connecting groove is provided with a second sealing element, the second sealing element is a member made of rubber material, and the outer circle of the lower end of the second sealing element is provided with a rounded corner.

[0015] Further, the outer side of the second connecting groove is provided with a second limiting block, and four groups of the second limiting block are equidistantly arranged along the circumferential direction of the second limiting block.

[0016] Further, the top of the second sealing element is outwardly protruding to form a second stepped part.

[0017] Further, the outer side of the occlusion part is provided with a protective sleeve, the protective sleeve is provided with a channel, the protective sleeve is provided with a mouth holding part, the channel of the mouth holding part is in the form of a straight line, the mouth holding part is composed of two parallel flat surfaces, and the two flat surfaces are connected by an arc surface.

[0018] The beneficial effects of the present application are: the disposable filter for lung function instrument provided by the present application can be more tightly connected with the connecting pipe of the lung function instrument handle when the plug-in part is connected with the connecting pipe, so as to realize the sealing effect, and the end of the connecting pipe is blocked by the first stepped part, which further improves the sealing effect, prevents gas leakage, and ensures the accuracy during detection.

[0019] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings accompanying the specification of the present application form a part thereof, and serve to provide further understanding of the present application, the illustrative embodiments of the present application and its description serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0021] Figure 1 It is the overall schematic diagram of the present application;

[0022] Figure 2 For Figure 1 the exploded view;

[0023] Figure 3 For the plug-in part of the application cross section Figure 1 ;

[0024] Figure 4 For the plug-in part of the application cross section Figure 2 ;

[0025] Figure 5 For the first sealing member structure of the application schematic diagram;

[0026] Figure 6 For the protective sleeve structure of the application schematic diagram;

[0027] Figure 7 For the second sealing member structure of the application schematic diagram;

[0028] In the figure, the various reference signs:

[0029] 1, filter part; 11, conical shell; 12, filter layer; 121, non-woven fabric layer; 122, lava cloth layer; 123, filter mesh layer; 2, occlusion part; 21, groove; 22, protective sleeve; 221, mouth containing part; 222, channel; 3, plug-in part; 31, first connecting groove; 32, first limiting block; 33, second connecting groove; 34, second limiting block; 4, first sealing member; 41, first step part; 42, first limiting groove; 5, second sealing member; 51, second limiting groove; 52, second step part. DETAILED DESCRIPTION

[0030] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] In order to enable the persons skilled in the art to better understand the present application scheme, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application. EMBODIMENTS

[0032] As Figures 1 to 5As shown, the application provides a filter for disposable pulmonary function instrument, which comprises a filter part 1, a bite part 2 and a plug-in part 3 connected to the upper and lower ends of the filter part 1 respectively, the filter part 1 comprises two symmetrical conical housings 11 and a filter layer 12 arranged between the conical housings 11, and the two conical housings 11 are sealingly connected;

[0033] The inside of the plug-in part 3 is provided with a first sealing piece 4, which is a ring-shaped body made of rubber, and the inner circle of the bottom of the first sealing piece 4 is provided with a rounded corner.

[0034] In this embodiment, when the filter is needed to be plugged into the outside of the handheld handle connecting pipe of the pulmonary function instrument, the plug-in part 3 is plugged into the outside of the handheld handle connecting pipe, the tightness between the plug-in part 3 and the connecting pipe is increased by the first sealing piece 4 made of rubber, the connecting pipe and the plug-in part 3 can be sealed, the gas leakage caused by the gap during the measurement is prevented, the accuracy of the data during the measurement is further ensured, and since the inner circle of the bottom of the first sealing piece 4 is provided with a rounded corner, the first sealing piece 4 can be better sleeved on the outside of the connecting pipe when it is plugged into the outside of the connecting pipe, and the operation convenience is further improved.

[0035] As shown in the figure, Figures 3 to 4 The inside of the plug-in part 3 is provided with a first connecting groove 31, and the first sealing piece 4 is connected to the inside of the first connecting groove 31.

[0036] In this embodiment, the first connecting groove 31 is used to provide fixation and support for the first sealing piece 4, so that the first sealing piece 4 can be stably connected to the plug-in part 3.

[0037] As shown in the figure, Figure 5 The top of the first sealing piece 4 is inwardly protruding and forms a first stepped part 41.

[0038] In this embodiment, when the plug-in part 3 is plugged into the outside of the handheld handle connecting pipe, the end of the connecting pipe is abutted by the first stepped part 41 to prevent the plug-in part 3 from being inserted too far, the end of the connecting pipe is blocked by the first stepped part 41 to further improve the sealing effect and prevent gas leakage.

[0039] As shown in the figure, Figures 4 to 5 The inside of the first connecting groove 31 is provided with a first limiting block 32, four groups of the first limiting block 32 are equidistantly arranged along the circumferential direction of the first connecting groove 31, and the outside of the first sealing piece 4 is provided with a first limiting groove 42 matched with the first limiting block 32.

[0040] In this embodiment, the engagement of the first limiting block 32 and the first limiting groove 42 can limit the relative rotation between the plug-in part 3 and the first sealing piece 4 during the plugging of the plug-in part 3, prevent the gap caused by the rotation, and thus ensure the integrity of the sealing.

[0041] As Figure 2 shown in the figure, the filter layer 12 includes a non-woven fabric layer 121, a lava cloth layer 122 and a filter mesh layer 123 which are stacked in the conical shell 11.

[0042] In this embodiment, by stacking the non-woven fabric layer 121, the lava cloth layer 122 and the filter mesh layer 123, microorganisms and bacteria can be effectively adsorbed and filtered out, cross infection can be avoided, and the accuracy of the test results can be improved.

[0043] As Figure 2 shown in the figure, the top of the occlusion part 2 is rounded, and the outer side of the occlusion part 2 is provided with a groove 21, and the groove 21 is symmetrically provided with two groups.

[0044] In this embodiment, since the top of the occlusion part 2 is rounded, the mouth can be prevented from being scratched when holding the occlusion part 2 to blow, and the teeth of the upper and lower jaws can be positioned by the two groups of grooves 21, the stability of the occlusion part 2 during the test is ensured, and the comfort of the oral cavity during the test is further improved. Embodiment

[0045] As Figures 6 to 7 shown, different from the first embodiment, the outer side of the plug-in part 3 is provided with a second connecting groove 33, the outer side of the second connecting groove 33 is provided with a second sealing piece 5, the second sealing piece 5 is a member made of rubber material, and the outer circle of the lower end of the second sealing piece 5 is rounded.

[0046] In this embodiment, when the filter tip needs to be inserted into the inside of the connecting pipe of the lung function instrument hand handle, the plug-in part 3 is inserted into the inside of the connecting pipe, the second sealing piece 5 on the outer side of the plug-in part 3 seals between the plug-in part 3 and the connecting pipe to prevent gas leakage, and because the outer circle of the lower end is rounded, the plug-in part 3 can be better inserted into the inside of the connecting pipe during connection.

[0047] As Figure 7 shown, the outer side of the second connecting groove 33 is provided with a second limiting block 34, and the second limiting block 34 is provided with four groups along the circumferential direction at equal intervals, and the inner side of the second sealing piece 5 is provided with a second limiting groove 51 matched with the second limiting block 34.

[0048] In this embodiment, by the setting of the second limiting block 34 and the second limiting groove 51, the relative rotation between the plug-in part 3 and the second sealing piece 5 during the insertion of the plug-in part 3 can be limited, the gap caused by rotation can be prevented, and the connection sealing performance can be further ensured.

[0049] As Figure 7 shown, the top of the second sealing piece 5 is outwardly protruding to form a second stepped part 52.

[0050] In the embodiment, when the plug-in part 3 is connected to the inner side of the connecting pipe, the top of the connecting pipe is blocked by the second step part 52, further increasing the sealing performance and preventing gas leakage.

[0051] As shown in Figure 6 The outer side of the occlusion part 2 is sleeved with a protective sleeve 22, which is a member made of rubber material. The protective sleeve 22 is provided with a channel 222. The protective sleeve 22 is provided with a mouth holding part 221. The channel 222 at the mouth holding part 221 is in the shape of a straight line. The mouth holding part 221 is composed of two parallel flat surfaces connected by an arc surface.

[0052] In the embodiment, the protective sleeve 22 made of rubber material allows the human body to directly hold the protective sleeve 22 for blowing operation, preventing the occlusion part 2 from scratching the soft tissue in the oral cavity. The mouth holding part 221 is composed of two parallel flat surfaces and two arc surfaces. This structure can better meet the ergonomics, making it easier for users to adapt during use. The smooth transition between the two flat surfaces and the arc surface ensures good cooperation with the oral cavity, improving overall comfort.

[0053] The above is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A disposable pulmonary function tester filter tip, comprising a filter section and a snap-fit ​​section and a connector section respectively connected to the upper and lower ends of the filter section, characterized in that, The filter section includes two symmetrically arranged conical shells and a filter layer disposed between the conical shells, and the two conical shells are sealed together. The insertion part is provided with a first sealing element inside. The first sealing element is a ring-shaped body made of rubber, and the bottom inner ring of the first sealing element is rounded.

2. The filter tip for a disposable pulmonary function analyzer according to claim 1, characterized in that: The insertion part has a first connecting groove inside, and the first sealing member is connected to the inside of the first connecting groove.

3. The filter tip for a disposable pulmonary function analyzer according to claim 2, characterized in that: The top of the first seal protrudes inward to form a first stepped portion.

4. The filter tip for a disposable pulmonary function analyzer according to claim 3, characterized in that: The first connecting groove is provided with a first limiting block inside, and four sets of the first limiting blocks are provided at equal intervals along its circumference. The outer side of the first sealing member is provided with a first limiting groove that matches the first limiting block.

5. The filter tip for a disposable pulmonary function analyzer according to claim 4, characterized in that: The filter layer includes a non-woven fabric layer, a lava cloth layer, and a filter mesh layer stacked within the conical shell.

6. The filter tip for a disposable pulmonary function analyzer according to claim 5, characterized in that: The top of the biting part is rounded, and the outer side of the biting part is provided with a groove, and two sets of grooves are symmetrically provided.

7. The filter tip for a disposable pulmonary function analyzer according to claim 1, characterized in that: A second connecting groove is provided on the outer side of the plug-in part, and a second sealing element is provided on the outer side of the second connecting groove. The second sealing element is a component made of rubber material, and the lower outer ring of the second sealing element is rounded.

8. The filter tip for a disposable pulmonary function analyzer according to claim 7, characterized in that: The second connecting groove is provided with a second limiting block on its outer side, and four sets of the second limiting blocks are provided at equal intervals along its circumference. The second sealing member is provided with a second limiting groove that matches the second limiting block on its inner side.

9. The filter tip for a disposable pulmonary function analyzer according to claim 8, characterized in that: The top of the second seal protrudes outward to form a second stepped portion.

10. The filter tip for a disposable pulmonary function analyzer according to claim 9, characterized in that: A protective sleeve is fitted on the outer side of the biting part, and a channel is opened through the protective sleeve. A mouth part is formed on the protective sleeve. The channel in the mouth part is in the shape of a straight line. The mouth part is composed of two parallel straight surfaces, and the two straight surfaces are connected by an arc surface.

Images