Portable lung function instrument field calibration device

Abstract

The utility model relates to the technical field of medical instruments, in particular to a portable lung function instrument field calibration device which comprises a base and is characterized in that one side of the base is fixedly connected with one side of a pushing piece, one side of the pushing piece is fixedly connected with one side of a sliding piece, the other side of the base is fixedly connected with one side of a sealing piece, and the other side of the sealing piece is fixedly connected with the other side of the sliding piece. When the lung function instrument is used for conducting gas transmission calibration on the lung function instrument, the limiting sleeve is rotated, so that the limiting sleeve moves on the threaded rod through the thread meshing force of the threaded hole and the threaded rod, the limiting sleeve is adjusted to the needed position, then the pushing handle is pushed, and the leakage-proof piece is arranged on the limiting sleeve. The pushing handle is pushed to drive the threaded rod and the sliding rod to slide, the piston slides to convey air into the lung function instrument, the limiting sleeve abuts against the supporting cover to limit the sliding distance of the piston, and therefore the volume of the air conveyed into the lung function instrument is controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a portable on-site calibration device for a pulmonary function meter. Background Art

[0002] A spirometer is a medical device used to measure the volume of air inhaled and exhaled by the lungs. It can perform lung function tests and track lung health. It can measure common lung function test parameters including FVC, FEV1, FEV1 / FVC, etc.

[0003] Most of the on-site calibration devices for spirometers currently on the market cannot control the amount of air delivered to the spirometer, making it impossible for people to accurately control the volume of air delivered to the spirometer. Utility Model Content

[0004] The present invention aims to provide a portable on-site calibration device for a spirometer to address the aforementioned issue of the background art regarding the inability to accurately control the volume of air delivered to the spirometer. To achieve this objective, the present invention provides the following technical solution: a portable on-site calibration device for a spirometer, comprising a base, one side of the base being fixedly connected to one side of a pusher, one side of the pusher being fixedly connected to one side of a sliding member, another side of the base being fixedly connected to one side of a sealing member, and another side of the sealing member being fixedly connected to one side of a leak-proof member.

[0005] The inner wall of the base is in sliding contact with the outer wall of the sliding member. The pushing member is composed of a pushing handle, a threaded rod and a limiting sleeve. The sliding member includes a supporting sleeve, a sliding rod, a piston and a sealing ring.

[0006] Preferably, the base includes a sealing cover, a transparent tube and a support cover, the outer wall of one side of the sealing cover is fixedly sleeved with the inner wall of one side of the transparent tube, and the inner wall of the other side of the transparent tube is fixedly sleeved with the outer wall of one side of the support cover, and the outer wall of the transparent tube is provided with scale lines.

[0007] Preferably, one side of the pushing handle is fixedly connected to one end of the threaded rod, and one side of the limiting sleeve is movably abutted against one side of the support cover. A threaded hole is provided on the inner wall of the limiting sleeve, and the inner wall of the threaded hole is threadedly connected to the outer wall of the threaded rod.

[0008] Preferably, one side of the support sleeve is fixedly connected to the side of the support cover close to the limit sleeve by a bolt, and the inner wall of the support sleeve is slidably connected to the outer wall of the sliding rod, one end of the sliding rod is fixedly connected to the side of the push handle close to the threaded rod, and the other end of the sliding rod is fixedly connected to one side of the piston, the outer wall of the piston is slidably connected to the inner wall of the transparent tube, and a limiting groove is provided on the outer wall of the piston, and a sealing ring is installed on the inner wall of the limiting groove.

[0009] Preferably, the sealing member consists of a connecting ring, an outer sealing sleeve and an outer sealing ring, one side of the connecting ring is fixedly connected to the side of the sealing cover away from the transparent tube, and the other side of the connecting ring is fixedly connected to one side of the outer sealing sleeve, and the inner wall of the outer sealing sleeve is installed with an outer sealing ring.

[0010] Preferably, the leakage-proof component includes an inner sealing sleeve and an inner sealing ring, one side of the inner sealing sleeve is fixedly connected to the side of the connecting ring close to the outer sealing sleeve, and the inner sealing ring is installed on the outer wall of the inner sealing sleeve.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In the utility model, when the pulmonary function meter is used to calibrate the air supply of the pulmonary function meter, the limiting sleeve is rotated so that the limiting sleeve moves on the threaded rod through the threaded engagement force between the threaded hole and the threaded rod, and the limiting sleeve is adjusted to a required position. Then, the pushing handle is pushed, and the pushing handle drives the threaded rod and the sliding rod to slide, so that the piston slides to deliver air to the pulmonary function meter, and the sliding distance of the piston is limited by the limiting sleeve against the support cover, thereby controlling the volume of air delivered to the pulmonary function meter, which brings convenience to people.

[0013] In the utility model, when the trachea on the pulmonary function instrument is connected to the calibration device, the trachea is inserted between the outer sealing sleeve and the inner sealing ring, so that the outer sealing sleeve and the inner sealing ring respectively press against the outer wall and the inner wall of the trachea, and the airtightness between the trachea and the outer sealing sleeve and the inner sealing ring is improved by the outer sealing ring and the inner sealing sleeve, thereby preventing air leakage during gas transmission and causing inaccurate calibration, which brings convenience to people's use. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 It is an exploded view of the utility model;

[0017] Figure 4 This is an exploded view of the pusher and the slide in the present invention;

[0018] Figure 5 This is an exploded view of the sealing component and the leak-proof component in the present invention.

[0019] In the figure: 1. Base; 101. Sealing cover; 102. Transparent tube; 103. Support cover; 2. Pushing member; 201. Pushing handle; 202. Threaded rod; 203. Limiting sleeve; 3. Sliding member; 301. Support sleeve; 302. Sliding rod; 303. Piston; 304. Sealing ring; 4. Sealing member; 401. Connecting ring; 402. Outer sealing sleeve; 403. Outer sealing ring; 5. Leakage-proof member; 501. Inner sealing sleeve; 502. Inner sealing ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0021] See also Figures 1 to 5 The utility model provides a technical solution: a portable on-site calibration device for a pulmonary function meter, comprising a base 1, one side of the base 1 is fixedly connected to one side of a pushing member 2, one side of the pushing member 2 is fixedly connected to one side of a sliding member 3, the other side of the base 1 is fixedly connected to one side of a sealing member 4, and the other side of the sealing member 4 is fixedly connected to one side of a leakage-proof member 5.

[0022] The inner wall of the base 1 slides against the outer wall of the sliding member 3 . The pushing member 2 is composed of a pushing handle 201 , a threaded rod 202 and a limiting sleeve 203 . The sliding member 3 includes a supporting sleeve 301 , a sliding rod 302 , a piston 303 and a sealing ring 304 .

[0023] In this embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the base 1 includes a sealing cover 101, a transparent tube 102 and a support cover 103. The outer wall of one side of the sealing cover 101 is fixedly connected to the inner wall of one side of the transparent tube 102, and the inner wall of the other side of the transparent tube 102 is fixedly connected to the outer wall of one side of the support cover 103. The outer wall of the transparent tube 102 is provided with scale lines.

[0024] In this embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, one side of the push handle 201 is fixedly connected to one end of the threaded rod 202, and one side of the limiting sleeve 203 is movably abutted against one side of the support cover 103. A threaded hole is provided on the inner wall of the limiting sleeve 203, and the inner wall of the threaded hole is threadedly connected to the outer wall of the threaded rod 202.

[0025] In this embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, one side of the support sleeve 301 is fixedly connected to the side of the support cover 103 close to the limit sleeve 203 by bolts, and the inner wall of the support sleeve 301 is slidably connected to the outer wall of the sliding rod 302, one end of the sliding rod 302 is fixedly connected to the side of the pushing handle 201 close to the threaded rod 202, and the other end of the sliding rod 302 is fixedly connected to one side of the piston 303, the outer wall of the piston 303 is slidably connected to the inner wall of the transparent tube 102, and a limit groove is provided on the outer wall of the piston 303, and a sealing ring 304 is installed on the inner wall of the limit groove.

[0026] In this embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the sealing member 4 consists of a connecting ring 401, an outer sealing sleeve 402 and an outer sealing ring 403. One side of the connecting ring 401 is fixedly connected to the side of the sealing cover 101 away from the transparent tube 102, and the other side of the connecting ring 401 is fixedly connected to one side of the outer sealing sleeve 402. The outer sealing ring 403 is installed on the inner wall of the outer sealing sleeve 402.

[0027] In this embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the leakage-proof component 5 includes an inner sealing sleeve 501 and an inner sealing ring 502 . One side of the inner sealing sleeve 501 is fixedly connected to the side of the connecting ring 401 close to the outer sealing sleeve 402 , and the inner sealing ring 502 is installed on the outer wall of the inner sealing sleeve 501 .

[0028] The usage and advantages of the utility model: When the portable pulmonary function meter on-site calibration device is in operation, the working process is as follows:

[0029] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, when people carry the calibration device, the calibration device is small in size, making it more convenient for medical staff to carry. When using the pulmonary function meter to calibrate the air supply of the pulmonary function meter, by rotating the limit sleeve 203, the limit sleeve 203 moves on the threaded rod 202 through the threaded engagement force between the threaded hole and the threaded rod 202, and the limit sleeve 203 is adjusted to the required position. Then, the pushing handle 201 is pushed, and the pushing handle 201 drives the threaded rod 202 and the sliding rod 302 to slide, so that the piston 303 slides to deliver air to the pulmonary function meter, and The limiting sleeve 203 is pressed against the support cover 103 to limit the sliding distance of the piston 303, thereby controlling the volume of air delivered to the pulmonary function meter. When the trachea on the pulmonary function meter is connected to the calibration device, the trachea is inserted between the outer sealing sleeve 402 and the inner sealing ring 502, so that the outer sealing sleeve 402 and the inner sealing ring 502 respectively press against the outer wall and inner wall of the trachea, and the outer sealing ring 403 and the inner sealing sleeve 501 improve the airtightness between the trachea and the outer sealing sleeve 402 and the inner sealing ring 502, thereby preventing air leakage during gas delivery and causing inaccurate calibration.

[0030] The above shows and describes the basic principles, main features, and advantages of the present invention. Persons skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable pulmonary function meter on-site calibration device, comprising a base (1), characterized in that: One side of the base (1) is fixedly connected to one side of the pusher (2), one side of the pusher (2) is fixedly connected to one side of the sliding member (3), the other side of the base (1) is fixedly connected to one side of the sealing member (4), and the other side of the sealing member (4) is fixedly connected to one side of the leak-proof member (5); The inner wall of the base (1) is in sliding contact with the outer wall of the sliding member (3); the pushing member (2) is composed of a pushing handle (201), a threaded rod (202) and a limiting sleeve (203); and the sliding member (3) includes a supporting sleeve (301), a sliding rod (302), a piston (303) and a sealing ring (304).

2. A portable on-site calibration device for a pulmonary function meter according to claim 1, characterized in that: The base (1) comprises a sealing cover (101), a transparent tube (102) and a support cover (103); the outer wall of one side of the sealing cover (101) is fixedly sleeved with the inner wall of one side of the transparent tube (102); and the inner wall of the other side of the transparent tube (102) is fixedly sleeved with the outer wall of one side of the support cover (103); and the outer wall of the transparent tube (102) is provided with scale lines.

3. A portable on-site calibration device for a pulmonary function meter according to claim 2, characterized in that: One side of the pushing handle (201) is fixedly connected to one end of the threaded rod (202), and one side of the limiting sleeve (203) is movably abutted against one side of the support cover (103). A threaded hole is provided on the inner wall of the limiting sleeve (203), and the inner wall of the threaded hole is threadedly connected to the outer wall of the threaded rod (202).

4. The portable on-site calibration device for a pulmonary function meter according to claim 3, characterized in that: One side of the support sleeve (301) is fixedly connected to the side of the support cover (103) close to the limiting sleeve (203) through a bolt, and the inner wall of the support sleeve (301) is slidably connected to the outer wall of the sliding rod (302), one end of the sliding rod (302) is fixedly connected to the side of the pushing handle (201) close to the threaded rod (202), and the other end of the sliding rod (302) is fixedly connected to one side of the piston (303), the outer wall of the piston (303) is slidably connected to the inner wall of the transparent tube (102), and a limiting groove is provided on the outer wall of the piston (303), and a sealing ring (304) is installed on the inner wall of the limiting groove.

5. The portable on-site calibration device for a pulmonary function meter according to claim 2, characterized in that: The sealing member (4) is composed of a connecting ring (401), an outer sealing sleeve (402) and an outer sealing ring (403); one side of the connecting ring (401) is fixedly connected to the side of the sealing cover (101) away from the transparent tube (102), and the other side of the connecting ring (401) is fixedly connected to one side of the outer sealing sleeve (402); and the inner wall of the outer sealing sleeve (402) is provided with the outer sealing ring (403).

6. The portable on-site calibration device for a pulmonary function meter according to claim 5, characterized in that: The leak-proof component (5) comprises an inner sealing sleeve (501) and an inner sealing ring (502); one side of the inner sealing sleeve (501) is fixedly connected to a side of the connecting ring (401) close to the outer sealing sleeve (402); and the inner sealing ring (502) is installed on the outer wall of the inner sealing sleeve (501).

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