Ventilator condensate collection bag
By designing a ventilator condensate collection bag with an inflatable bag and a suction cup or strap for fixation, the problems of inconvenient condensate collection and unstable fixation in existing devices have been solved, achieving stable collection and safe condensate management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL ZHEJIANG UNIV COLLEGE OF MEDICINE
- Filing Date
- 2025-04-02
- Publication Date
- 2026-06-09
AI Technical Summary
Existing ventilator condensate collection devices have problems such as small capacity requiring frequent emptying, inconvenience in fixing, and easy interference with ventilator tubing, especially in environments without a fixed structure.
A ventilator condensate collection bag was designed, which uses two fixing methods: an inflatable bag and a suction cup or strap. The inflatable bag maintains its shape by inflation, the connector is made of silicone material and a clamp, and an anti-backflow plate prevents backflow, adapting to the fixing needs of different environments.
It achieves stable collection of condensate, avoids frequent emptying and the pulling effect on the ventilator tubing, and provides multiple fixing methods to adapt to different scenarios, ensuring safe and reliable use.
Smart Images

Figure CN224331326U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical device auxiliary devices, and more particularly to a ventilator condensate collection bag. Background Technology
[0002] Ventilators are widely used in clinical practice as medical devices. If condensate generated in the ventilator tubing is not effectively collected, it can easily lead to fluid reflux and cause infection in patients (VAP incidence rate as high as 28%). Most existing ventilators use a collection cup or drainage bag structure. The collection cup has a small capacity and requires frequent emptying. Although the drainage bag structure is larger, to prevent excessive condensate from affecting the ventilator tubing under gravity, or from loosening due to tension during prolonged suspension, resulting in serious consequences, a fixing structure is needed. For example, a strapping structure can be used to secure it to a certain position. While this is safer, it is also more cumbersome to operate. Furthermore, the ventilator condensate collection point is usually located between the bed and the ventilator, where the tubing may be suspended, making it difficult to find a binding structure or a structure to secure the collection bag.
[0003] Chinese patent number "CN214596731U" entitled "A condensate collection bag for a ventilator tubing" discloses a condensate collection bag. Although the collection bag is equipped with a tie, it needs to be fixed to a horizontal structure or a hook. If it is a vertical rod, it is easy to slide downwards. Therefore, it has certain requirements for the environment in which it is used. Utility Model Content
[0004] This application provides a ventilator condensate collection bag to at least solve the above-mentioned technical problems existing in the prior art.
[0005] According to this application, a ventilator condensate collection bag is provided, including a bag body, a fixing part, and a connector. The connector is connected to the bag body so that the bag body is connected to the three-way pipe of the ventilator through the connector. The fixing part is connected to or abuts against the bag body or the connector to restrict the bag body to a certain position. The fixing part includes a first fixing part and a second fixing part. The first fixing part is provided with an inflatable bag, which is provided with an inflation port. The inflation port is provided with a sealing cap. After the sealing cap seals the inflation port, it forms a closed sealed cavity that can maintain the shape of the inflatable bag under the action of air. The second fixing part can fix the bag body to the attached object.
[0006] Compared with existing technologies, the ventilator condensate collection bag of this application has the following advantages:
[0007] The condensate collection bag does not require frequent emptying, and the large amount of collected condensate will not put excessive strain on the ventilator tubing, affecting its operation. This means that even if medical staff are busy and forget to empty the condensate collection bag for a short time, there will be no adverse effects. The ventilator condensate collection bag has two fixing modes: fixing with an attachment and fixing with an inflatable bag. If there is an attachment, use the attachment for fixing. If there is no attachment, an inflatable bag can be used for fixing. The inflatable bag does not need to have too much air pressure; maintaining standard atmospheric pressure is sufficient. The inflatable bag should be able to maintain a height of 30-60 cm under slight compression. Different inflatable bags can be selected or the bag itself can be fixed at different heights according to actual needs.
[0008] In one embodiment, the second fixing part is provided with a suction cup that can be attached to a flat structure. This design makes fixing convenient, and when there is no binding position on the headboard or nearby wall, it can be directly attached to the flat surface by relying on the suction cup.
[0009] In one possible implementation, the second fixing part is provided with a strap that can be tied to a strip-shaped object. The binding and fixing is relatively stable and reliable. If there is a suitable binding position, binding and fixing can be preferred. Multiple fixing methods can be combined to cope with different usage scenarios.
[0010] In one embodiment, the inflatable bag is made of plastic film. Plastic film is inexpensive, and the weight of a condensate bag is generally less than one kilogram. It does not require much support, so a plastic film of a certain thickness can meet the strength requirements. This makes it easy to manufacture and can use the manufacturing process of ordinary plastic bags.
[0011] In one embodiment, the inflatable bag uses multiple thin-film partitions to divide the sealed cavity into multiple partially interconnected chambers, which provides better support performance, i.e., better shape retention with thinner materials.
[0012] In one embodiment, the inflatable bag is shaped into a pyramidal or prismal structure, which allows for a smaller volume to be obtained.
[0013] In one embodiment, the bag body is mounted on the side of the inflatable bag so that the bag body is in an inclined or vertical state.
[0014] In one embodiment, the inflatable bag includes a first inflation part and a second inflation part, which are inflated independently. The bag body is installed between the first inflation part and the second inflation part, so that the inflatable bag is not easy to tip over and the bag body is prevented from falling off due to accidental contact with the inflatable bag.
[0015] In one embodiment, the connector is made of silicone material with a certain degree of elasticity, and a clamp is provided on the outside of the connector. The size of the clamp is adjusted by a screw, which facilitates connection and provides good sealing performance.
[0016] In one embodiment, the connector is provided with an anti-backflow plate to prevent condensate from flowing back.
[0017] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description
[0018] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of this application are illustrated in the drawings by way of example and not limitation, in which:
[0019] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
[0020] Figure 1 This paper shows a schematic diagram of the composition of the ventilator condensate collection bag according to Embodiment 1 of this application;
[0021] Figure 2 This paper shows a schematic diagram of the bag body connection of the ventilator condensate collection bag according to Embodiment 1 of this application;
[0022] Figure 3 It shows Figure 2 Enlarged view of point A in the middle;
[0023] Figure 4 This shows a partial cross-sectional schematic diagram of the inflation bag of the ventilator condensate collection bag in Embodiment 1 of this application;
[0024] Figure 5 A schematic diagram of the anti-backflow tab of the ventilator condensate collection bag in Embodiment 1 of this application is shown;
[0025] Figure 6 This invention provides a schematic diagram of the structural composition of the ventilator condensate collection bag according to Embodiment 2 of this application.
[0026] Figure 7 A schematic diagram of the composition of the ventilator condensate collection bag in Embodiment 2 of this application is shown.
[0027] In the diagram: 1. Bag body; 2. Inflatable bag; 3. Connector; 4. Pipe; 5. Suction cup; 6. Strap; 7. Cross valve; 8. Clamp; 9. Screw; 20. Sealing cavity; 21. Partition; 22. Small air hole; 23. Sealing cap; 24. First inflation section; 25. Second inflation section; 26. Inflation port; 27. Limiting band; 31. First elastic sheet; 32. Second elastic sheet; 33. Tube body; 34. Lower end; 35. Upper end. Detailed Implementation
[0028] To make the objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0029] like Figures 1-7 As shown, a ventilator condensate collection bag includes a bag body 1, a fixing part, and a connector 3. The connector 3 is connected to the bag body 1 so that the bag body 1 is connected to the ventilator three-way pipe 4 through the connector 3. The fixing part is connected to or abuts against the bag body 1 or the connector 3 to restrict the bag body 1 to a certain position. The fixing part includes a first fixing part and a second fixing part. The first fixing part is provided with an inflatable bag 2. The inflatable bag 2 is provided with an inflation port 26. The inflation port 26 is provided with a sealing cap 23. After the sealing cap 23 seals the inflation port 26, it forms a closed sealed cavity 20. Under the action of air, it can maintain the shape of the inflatable bag 2. The second fixing part can fix the bag body 1 to the attached object.
[0030] The ventilator tri-way tubing 4 can also be equipped with straps to maintain the position of the ventilator tubing, but in the absence of any attached objects, an inflatable bag 2 can be used to ensure the position of the bag body 1 to avoid causing significant impact on the ventilator tubing.
[0031] Example 1:
[0032] like Figure 2 As shown, in one embodiment, the second fixing part is provided with a suction cup 5 that can be adsorbed onto the planar structure. The suction cup 5 is made of silicone or rubber material and is fused to or glued to the bag body 1. The lower end of the bag body 1 is provided with a cross valve 7. After the cross valve 7 is opened, condensate can be discharged directly. Other valve structures can also be provided.
[0033] like Figure 1 and Figure 2 As shown, the second fixing part is equipped with a strap 6 that can be tied to a strip-shaped object. The strap 6 is equipped with Velcro so that the binding size can be adjusted to adapt to different structures. The strap 6 has a more concentrated force and can be directly fixed to the connector 3.
[0034] like Figure 1 and Figure 4 As shown, the air bag 2 is made of plastic film, such as polyethylene film or polyvinyl chloride film. An air inlet 26 needs to be provided, and the air inlet 26 can be made of different materials.
[0035] like Figure 1 and Figure 4As shown, the air bag 2 uses multiple thin film partitions 21 to divide the sealed cavity 20 into multiple partially connected chambers. During manufacturing, multiple plastic films are fixed together by heat fusion. Small air holes 22 are provided on the partitions 21 so that multiple chambers can be filled with air using one air inlet 26.
[0036] like Figure 1 As shown, the inflatable bag 2 is in the form of a triangular prism or a quadrangular prism, or a similar structure. To ensure that the bag body 1 is installed at different heights, multiple limiting straps 27 can be set at different heights of the inflatable bag 2. The bag body 1 can be limited by the protruding suction cup 5 or other structures and the limiting straps 27.
[0037] like Figure 1 and Figure 4 As shown, the bag body 1 is installed on the side of the inflatable bag 2 so that the bag body 1 is in an inclined or vertical state. In order to ensure the balance of the center of gravity and prevent tipping, the inflatable bag 2 can be designed with a curved surface to install the bag body 1, so that the bag body 1 is as close to the center position as possible. The edges of the inflatable bag 2 can be designed with rounded corners to make the inflation capacity of the inflatable bag 2 better.
[0038] like Figure 5 As shown, connector 3 is made of silicone material and has a certain degree of elasticity. Connector 3 is equipped with clamp 8, and the size of clamp 8 is adjusted by screw 9.
[0039] like Figure 6 As shown, in one embodiment, the connector 3 is provided with an anti-backflow plate to prevent condensate from flowing back. The anti-backflow plate includes a first elastic plate 31 and a second elastic plate 32. The upper ends 35 of the first elastic plate 31 and the second elastic plate 32 are arc-shaped and connected to the inner wall of the pipe body 33. The first elastic plate 31 and the second elastic plate 32 gradually approach each other from top to bottom. The lower ends 34 of the first elastic plate 31 and the second elastic plate 32 can adhere together when no external force is applied, and separate when an external force is applied, thus achieving the anti-backflow effect.
[0040] Example 2:
[0041] like Figure 6 As shown, the inflatable bag 2 includes a first inflation section 24 and a second inflation section 25. The first inflation section 24 and the second inflation section 25 are inflated independently, and the bag body 1 is installed between the first inflation section 24 and the second inflation section 25. The bottoms of the first inflation section 24 and the second inflation section 25 are connected together to prevent them from separating under external force. The first inflation section 24 and the second inflation section 25 are fixed together to prevent tipping.
[0042] Example 3:
[0043] like Figure 7 As shown, the air bag 2 is generally pyramidal in shape, and the bag body 1 is fixed to the top of the air bag 2 by the straps 6.
[0044] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A ventilator condensate collection bag, comprising a bag body (1), a fixing part, and a connector (3), wherein the connector (3) is connected to the bag body (1) so that the bag body (1) is connected to the ventilator three-way tubing (4) through the connector (3), and the fixing part is connected to or abuts against the bag body (1) or the connector (3) to restrict the bag body (1) to a certain position, characterized in that: The fixing part includes a first fixing part and a second fixing part. The first fixing part is provided with an air bag (2). The air bag (2) is provided with an air inlet (26). The air inlet (26) is provided with a sealing cap (23). The sealing cap (23) seals the air inlet (26) to form a closed sealed cavity (20). Under the action of air, the air bag (2) can maintain a certain shape. The second fixing part can fix the bag body (1) to the attached object.
2. The ventilator condensate collection bag according to claim 1, characterized in that: The second fixing part is provided with a suction cup (5) that can be adsorbed onto a planar structure.
3. The ventilator condensate collection bag according to claim 1, characterized in that: The second fixing part is provided with a strap (6) that can be tied to a strip-shaped object.
4. The ventilator condensate collection bag according to claim 1, characterized in that: The inflatable bag (2) is made of plastic film.
5. The ventilator condensate collection bag according to claim 1, characterized in that: The inflatable bag (2) uses multiple thin film partitions (21) to divide the sealed cavity (20) into multiple partially connected chambers.
6. The ventilator condensate collection bag according to claim 1, characterized in that: The inflatable bag (2) is in the shape of a pyramid or prism.
7. The ventilator condensate collection bag according to claim 1, characterized in that: The bag body (1) is installed on the side of the inflatable bag (2) so that the bag body (1) is in an inclined or vertical state.
8. The ventilator condensate collection bag according to any one of claims 1-7, characterized in that: The inflatable bag (2) includes a first inflation part (24) and a second inflation part (25), the first inflation part (24) and the second inflation part (25) are inflated independently, and the bag body (1) is installed between the first inflation part (24) and the second inflation part (25).
9. The ventilator condensate collection bag according to claim 8, characterized in that: The connector (3) is made of silicone material and has a certain elasticity. The connector (3) is provided with a clamp (8), and the size of the clamp (8) is adjusted by a screw (9).
10. The ventilator condensate collection bag according to claim 9, characterized in that: The connector (3) is equipped with an anti-backflow plate to prevent condensate from flowing back.