Collecting bottle with filtering structure for testing alveolar lavage fluid
By designing a bronchoalveolar lavage fluid collection bottle with a detachable filter structure, the problem of inconvenient filtration and cleaning in the existing technology is solved, achieving efficient filtration and stirring of relatively viscous lavage fluid, and improving the accuracy and efficiency of test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 琼海市人民医院(琼海市人民医院医疗卫生共同体总院)
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-01
AI Technical Summary
The existing collection bottles for bronchoalveolar lavage fluid testing lack a detachable filter structure, making it inconvenient to filter and clean the viscous lavage fluid, and also making it difficult to store physiological saline for washing and stirring the viscous lavage fluid.
A collection bottle with a detachable filtration structure was designed, including a filter screen, nylon cloth, receiving plate, limiting groove, connecting sleeve, movable rod, sealing ring and brush strip. The detachable filtration and stirring functions are realized through threaded connection. Combined with the physiological saline storage structure, it can achieve filtration, washing and stirring of relatively viscous irrigation fluid.
It enables efficient filtration and cleaning of relatively viscous irrigation fluid, facilitates washing and stirring with physiological saline, and improves the accuracy and efficiency of test results.
Smart Images

Figure CN224184954U_ABST
Abstract
Description
A collection bottle for testing bronchoalveolar lavage fluid with a filtration structure Technical Field
[0001] This utility model relates to the field of laboratory technology, specifically to a collection bottle for testing bronchoalveolar lavage fluid with a filtration structure. Background Technology
[0002] Bronchoalveolar lavage can obtain a variety of information from the inhaled bronchoalveolar lavage fluid, including cytological, protein, enzyme, and pathogen examinations. Various tests can be performed on bronchoalveolar lavage fluid, including cytological, microbiological, parasitological, and immunological tests. The bronchoalveolar lavage fluid is usually collected using collection bottles.
[0003] For example, Chinese utility model patent CN218392432U discloses a filterable bronchoalveolar lavage fluid collection bottle, including a bottle body, bottle cap, through plate, slot one, slot two, septum filter plate, strip support rod, clamping plate, nylon filter screen, graduation lines, and anti-slip strip. The beneficial effects of this utility model are: it allows more viscous lavage fluid to adhere to the septum filter plate and be washed with saline, while the thinner saliva and saline flow to the bottom of the bottle. The nylon filter screen effectively filters out unwanted mucus strands and impurities. This reduces contamination and saves filtration steps when collecting bronchoalveolar lavage fluid for subsequent testing, greatly improving the timeliness and accuracy of test results. Furthermore, the bottle has a built-in easily removable filter screen, making it convenient and hygienic to use, and facilitating the observation of the collection volume, making the entire operation more convenient and providing doctors with accurate and reliable information for developing treatment plans.
[0004] However, existing bronchoalveolar lavage fluid collection bottles still have some problems during use. For example, they generally do not have a detachable filter structure, making it inconvenient to filter and clean viscous lavage fluid, and it is inconvenient to store physiological saline for washing and stirring viscous lavage fluid. Therefore, we propose a bronchoalveolar lavage fluid collection bottle with a filter structure to solve the problems mentioned above. Summary of the Invention
[0005] The purpose of this invention is to provide a collection bottle for bronchoalveolar lavage fluid testing with a filtration structure, in order to solve the problems that still exist in the existing bronchoalveolar lavage fluid collection bottles mentioned in the background art, such as the fact that they generally do not have a detachable filtration structure, making it inconvenient to filter and clean viscous lavage fluid, and making it inconvenient to store physiological saline for washing and stirring viscous lavage fluid.
[0006] To achieve the above object, the present utility model provides the following technical solutions: A collection bottle for alveolar lavage fluid inspection with a filtering structure, comprising a bottle body and a bottle cap nested and threadedly connected to the outer side of the upper end of the bottle body;
[0007] It further includes:
[0008] A scale is provided on the inner side of the rear end of the bottle body, and a filtering structure for alveolar lavage fluid is provided on the inner side of the bottle body;
[0009] A storage structure for physiological saline is provided at the upper left end of the bottle cap, and a limiting sleeve is fixedly connected to the lower side of the middle of the bottle cap.
[0010] Preferably, the filtering structure includes a filter net, a nylon cloth, a receiving plate and a limiting groove. The filter net is nested and fitted inside the bottle body, and the nylon cloth is fixedly adhered inside the filter net;
[0011] Among them, the upper outer side of the filter net is symmetrically fixed with limiting grooves, and the upper ends of the limiting grooves are snap-fitted into the limiting grooves symmetrically opened on the inner side of the upper end of the bottle body, and the shape of the limiting groove is "L" shaped.
[0012] Preferably, the storage structure includes a connecting sleeve, a movable rod, a sealing ring and a sealing block. The connecting sleeve is fixedly connected to the upper left side of the bottle cap, and the connecting sleeve is provided with a movable rod, a sealing ring and a sealing block that are interlinked.
[0013] Preferably, the movable rod is nested inside the middle of the connecting sleeve, and a sealing ring that is closely fitted with the connecting sleeve is fixedly adhered to the outer side of the upper end of the movable rod, and a sealing block that is closely fitted with the bottle cap is fixedly adhered to the lower side of the movable rod, and the movable rod and the sealing block are respectively in a "convex" shaped structure and a frustum shaped structure.
[0014] Preferably, a limiting rod that is non-removably connected to the limiting sleeve is snap-fitted through the limiting sleeve, and brush strips are uniformly fixed to the outer lower side of the limiting rod, and the brush strips are in contact with the nylon cloth.
[0015] Compared with the prior art, the beneficial effects of the present utility model are: The collection bottle for alveolar lavage fluid inspection with a filtering structure has a detachable filtering structure, so as to filter and clean the relatively viscous lavage fluid, and is convenient for storing physiological saline to wash and stir the relatively viscous lavage fluid;
[0016] 1. The bottle body, the filter net, the nylon cloth and the receiving plate are provided. Since the filter net with the nylon cloth fixedly adhered to the inner side is nested and fitted inside the bottle body, the receiving plates are symmetrically fixed to the upper outer side of the filter net, and the receiving plates are snap-fitted into the limiting grooves opened on the inner side of the upper outer end of the bottle body, so it is convenient to make the collection bottle have a detachable filtering structure, so as to filter and clean the relatively viscous lavage fluid;
[0017] 2. It is equipped with a bottle cap, a connecting sleeve, a movable rod, and a sealing ring. The bottle cap is threaded to the upper outer side of the bottle body, and the connecting sleeve with the movable rod on the inner side is fixedly connected to the bottle cap. The sealing ring is attached to the upper outer side of the movable rod and fits tightly with the connecting sleeve. The sealing block is attached to the lower side of the movable rod and fits tightly with the bottle cap. Therefore, it is convenient to store physiological saline for use in rinsing with more viscous irrigation solution.
[0018] 3. It is equipped with a bottle cap, a limiting sleeve, a limiting rod, and a brush strip. The limiting sleeve is fixedly connected to the lower middle part of the bottle cap, and the limiting rod is non-removably connected inside the limiting sleeve. The brush strips are evenly fixed to the lower outer side of the limiting rod and are attached to the nylon cloth, which facilitates the stirring of viscous rinsing liquid. Attached Figure Description
[0019] Figure 1 is a frontal three-dimensional structural schematic diagram of the present invention;
[0020] Figure 2 is a frontal cross-sectional view of the present invention.
[0021] Figure 3 is a frontal three-dimensional structural diagram of the connection between the filter screen and the receiving plate of this utility model.
[0022] Figure 4 is a frontal three-dimensional structural diagram of the connection between the movable rod and the sealing block of this utility model;
[0023] Figure 5 is a frontal cross-sectional three-dimensional structural diagram of the connection between the limiting sleeve and the limiting rod of this utility model.
[0024] In the diagram: 1. Bottle body; 2. Bottle cap; 3. Scale; 4. Filter screen; 5. Nylon cloth; 6. Support plate; 7. Limiting groove; 8. Connecting sleeve; 9. Movable rod; 10. Sealing ring; 11. Sealing block; 12. Limiting sleeve; 13. Limiting rod; 14. Brush strip. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please refer to Figures 1-5. This utility model provides a technical solution: a collection bottle for bronchoalveolar lavage fluid testing with a filtration structure, including a bottle body 1, a bottle cap 2, a scale 3, a filter screen 4, a nylon cloth 5, a receiving plate 6, a limiting groove 7, a connecting sleeve 8, a movable rod 9, a sealing ring 10, a sealing block 11, a limiting sleeve 12, a limiting rod 13, and a brush strip 14. The bottle cap 2 is nested on the outer side of the upper end of the bottle body 1 and threadedly connected thereto. A scale is provided on the inner side of the rear end of the bottle body 1. 3. The inner side of the bottle body 1 is provided with a filter structure for bronchoalveolar lavage fluid. The filter structure includes a filter screen 4, a nylon cloth 5, a receiving plate 6 and a limiting groove 7. The filter screen 4 is nested and fitted inside the bottle body 1. The upper left end of the bottle cap 2 is provided with a storage structure for physiological saline. The lower middle part of the bottle cap 2 is fixedly connected with a limiting sleeve 12. The storage structure includes a connecting sleeve 8, a movable rod 9, a sealing ring 10 and a sealing block 11. The connecting sleeve 8 is fixedly connected to the upper left end of the bottle cap 2.
[0027] To address the problems in existing technologies where there is generally no detachable filter structure, making it inconvenient to filter and clean viscous lavage fluid, and inconvenient to store saline solution for washing and stirring viscous lavage fluid, this embodiment adopts the following technical solution, as shown in Figures 1, 2, and 3. When collecting bronchoalveolar lavage fluid, the operator can first carry the collection bottle to the collection location, and then rotate the bottle cap 2 nested on the outer side of the upper end of the bottle body 1 to disconnect the threaded connection between the bottle cap 2 and the bottle body 1, so as to remove the obstruction of the bottle body 1 by the bottle cap 2. Then, the collected bronchoalveolar lavage fluid can be injected into the bottle body 1. During the injection process, a filter screen 4 with an inner nylon cloth 5 is nested and attached to the inside of the bottle body 1. A receiving plate 6 is symmetrically fixed on the upper side of the filter screen 4 and snapped into place with a limiting groove 7 opened inside the upper outer end of the bottle body 1. Therefore, the filter screen 4 and nylon cloth 5 supported by the receiving plate 6 can filter the injected bronchoalveolar lavage fluid.
[0028] As shown in Figures 1, 2, and 4, after the initial filtration of the injected bronchoalveolar lavage fluid, the bottle cap 2 can be nested on the outer side of the upper end of the bottle body 1. Then, the movable rod 9 set on the inner side of the middle of the connecting sleeve 8 can be pressed down. Since the connecting sleeve 8 is fixedly connected to the bottle cap 2, the inner side of the upper end of the bottle cap 2 is tightly fitted with a sealing ring 10 that is attached and fixed to the movable rod 9. The lower part of the movable rod 9 is fixed with a sealing block 11 that is tightly fitted to the bottle cap 2. Therefore, by pressing down and moving the movable rod 9, it is easy to break the tight fit between the sealing block 11 and the bottle cap 2 under the seal of the sealing ring 10, so that the physiological saline stored in the connecting sleeve 8 falls into the bottle body 1, thereby facilitating the filtration of the injected bronchoalveolar lavage fluid and the washing of the more viscous lavage fluid.
[0029] As shown in Figures 1, 2, 3, and 5, during the process of physiological saline falling into the irrigation solution, the operator can manually shake the bottle cap 2. Because a limiting sleeve 12, which is internally locked and non-removably connected to the limiting rod 13, is fixed to the lower middle part of the bottle cap 2, and brush strips 14, which are evenly fixed to the lower outer side of the limiting rod 13 and are attached to the nylon cloth 5, shaking the bottle cap 2 facilitates the movement of the limiting rod 13 under the limiting sleeve 12, which in turn drives the brush strips 14 to shake. This allows the brush strips 14 to effectively clean the filter screen 4 and the nylon cloth 5. The viscous lavage fluid is washed and stirred with water to improve the treatment effect of the collection bottle on the bronchoalveolar lavage fluid. Finally, the receiving plate 6 can be lifted to disconnect the snap fastener between the receiving plate 6 and the limiting groove 7, and the receiving plate 6 can drive the filter screen 4 out of the bottle body 1, so as to facilitate the cleaning of the viscous lavage fluid on the filter screen 4 and the nylon cloth 5. Then, the bottle cap 2 can be rotated to make the bottle cap 2 threadedly connected to the bottle body 1, thus completing the sealing of the lavage fluid on the inner side of the lower end of the bottle body 1. All the electrical components mentioned above are existing technologies and will not be described in detail here.
[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A collection bottle for bronchoalveolar lavage fluid testing with a filtration structure, comprising a bottle body (1) and a cap (2) nested and threadedly connected to the upper outer side of the bottle body (1); characterized in that, It further includes: A scale (3) is provided on the inner side of the rear end of the bottle body (1), and a filtering structure for alveolar lavage fluid is provided on the inner side of the bottle body (1). The filtering structure includes a filter net (4), a nylon cloth (5), a receiving plate (6) and a limiting groove (7). The filter net (4) is nested and fitted inside the bottle body (1), and the nylon cloth (5) is fixedly adhered inside the filter net (4); wherein, limiting grooves (7) are symmetrically fixed on the outer upper side of the filter net (4), and the upper ends of the limiting grooves (7) are snap-fitted into the limiting grooves (7) symmetrically opened on the inner side of the upper end of the bottle body (1), and the shape of the limiting groove (7) is "L" shaped; a storage structure for physiological saline is provided on the upper left end of the bottle cap (2), and a limiting sleeve (12) is fixedly connected to the lower side of the middle of the bottle cap (2). The storage structure includes a connecting sleeve (8), a movable rod (9), a sealing ring (10) and a sealing block (11). The connecting sleeve (8) is fixedly connected to the upper left end of the bottle cap (2), and a movable rod (9), a sealing ring (10) and a sealing block (11) which are interlinked are arranged inside the connecting sleeve (8).
2. The collection bottle for bronchoalveolar lavage fluid testing with a filtration structure according to claim 1, characterized in that: The movable rod (9) is nested inside the middle of the connecting sleeve (8), and a sealing ring (10) which is closely fitted with the connecting sleeve (8) is fixedly adhered to the outer side of the upper end of the movable rod (9), and a sealing block (11) which is closely fitted with the bottle cap (2) is fixedly adhered to the lower side of the movable rod (9). Moreover, the movable rod (9) and the sealing block (11) are respectively in a "convex" shaped structure and a frustum shaped structure.
3. The collection bottle for bronchoalveolar lavage fluid testing with a filtration structure according to claim 1, characterized in that: A limiting rod (13) which is non-removably connected thereto is clamped and penetrated through the limiting sleeve (12), and brush strips (14) are uniformly fixed on the outer lower side of the limiting rod (13), and the brush strips (14) are in contact with the nylon cloth (5).
Citation Information
Patent Citations
Filterable bronchoalveolar lavage fluid collection bottle
CN218392432U