Water collecting cup for breathing pipeline and breathing machine
By designing an annular anti-backflow part and movable components in the water collection cup, the problems of complex structure and inconvenient maintenance of the water collection cup are solved, effectively preventing backflow of condensate and simplifying maintenance, thus ensuring patient safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-03-31
AI Technical Summary
Existing water collection cups for preventing condensate backflow have complex structures, are inconvenient to maintain, and pose safety hazards.
Design a water collection cup including a cup body, a cup lid, and a seal. The seal has an annular anti-backflow part that surrounds the drain and extends into the cup body. Combined with a movable part and a guide post, it forms a flow channel to prevent condensate from flowing back.
It effectively prevents condensate backflow, has a simple structure, reduces production costs, is easy to maintain, and ensures patient safety.
Smart Images
Figure CN224056416U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical accessory technology, and in particular to a water collection cup and ventilator for use in breathing tubing. Background Technology
[0002] In the breathing tubing of respiratory therapy equipment, the water collection cup is a key component used to collect condensate generated during breathing.
[0003] However, when the pressure inside the breathing tubing fluctuates, such as during a patient's violent coughing, rapid breathing, or malfunction of the breathing equipment, the condensate collected in the cup is prone to backflow. Once the condensate flows back into the breathing tubing, it is highly likely to enter the patient's airway, which can lead to choking, respiratory infections, or even more serious lung diseases, posing a significant threat to the patient's life and health.
[0004] Currently, in order to reduce the backflow of condensate, a structure to prevent backflow is designed on the water collection cup, but this has the problems of complex structure and inconvenient maintenance. Utility Model Content
[0005] Therefore, it is necessary to address the problems of complex structure and inconvenient maintenance of existing water collection cup anti-backflow structures, and to provide a water collection cup and ventilator with a simple structure and convenient maintenance for breathing tubing.
[0006] A water collection cup for a breathing tubing, comprising:
[0007] Cup body;
[0008] A cup lid, which can be placed on the cup body, has an air inlet and an air outlet for connection to a breathing tube; and
[0009] A sealing element is provided between the cup body and the cup lid. The sealing element has a drain outlet, and the air inlet and air outlet are connected to the interior of the cup body through the drain outlet.
[0010] The sealing component also includes an annular anti-backflow part, one end of which surrounds the drain outlet, and the other end extends into the interior of the cup body in a direction away from the cup lid.
[0011] In one embodiment, the outer ring of the annular anti-backflow portion is spaced apart from the inner wall of the cup body along the circumferential direction.
[0012] In one embodiment, the distance between the annular anti-backflow part and the bottom surface of the cup is L, and the depth of the cup is H, wherein 1 / 3H≤L≤2 / 3H.
[0013] In one embodiment, the inner diameter of the annular anti-backflow part is d1, and the diameter of the drain outlet is d2, wherein 1.1d2≤d1≤1.3d2.
[0014] In one embodiment, the seal is fixed to the cup lid.
[0015] In one embodiment, the water collecting cup further includes a movable component, which is mounted on the cup lid and movably disposed between the cup lid and the cup body;
[0016] When the lid is separated from the cup body, the movable part seals the drain outlet; when the lid is on the cup body, the movable part opens the drain outlet.
[0017] In one embodiment, when the cup lid is placed on the cup body, at least a portion of the movable part extends into the drain outlet, forming a flow gap between the drain outlet and the air inlet and outlet and the interior of the cup body.
[0018] In one embodiment, the movable part includes a main body and a first guide post. The main body is disposed between the cup lid and the sealing member. One end of the first guide post is connected to the main body, and the other end extends from the drain outlet into the annular anti-backflow part.
[0019] A first annular flow channel is formed between the first guide post and the annular anti-backflow part, and the first annular flow channel connects the drain outlet and the interior of the cup body.
[0020] In one embodiment, the main body includes an annular guide portion, one end of the first guide post is connected to the annular guide portion, and the outer radial direction of the annular guide portion gradually decreases towards the first guide post.
[0021] In another aspect of this application, a ventilator is provided, including a water collection cup and a breathing tubing as described in any of the above embodiments, wherein the air inlet and air outlet are both connected to the breathing tubing.
[0022] The aforementioned water collection cup and ventilator for breathing circuits, when condensate is collected in the cup, can prevent backflow if the patient experiences severe coughing, rapid breathing, or malfunction of the breathing equipment, causing significant pressure fluctuations within the breathing circuit and resulting in the condensate sloshing around. Alternatively, if the cup is tilted and the condensate spills down the drain, the annular anti-backflow portion surrounding the drain prevents the condensate from directly entering the drain. Furthermore, because it extends from the drain into the cup's interior, it also guides the condensate to flow inwards. This water collection cup for breathing circuits effectively prevents backflow of condensate, has a simple structure, reduces production costs, and facilitates daily operation and maintenance by medical personnel. Attached Figure Description
[0023] Figure 1 This is a cross-sectional structural diagram of a water collection cup for a breathing tubing in one or more embodiments of this application.
[0024] Figure 2 for Figure 1 The diagram shown is an exploded view of the water collection cup used in the breathing tubing.
[0025] Figure 3 for Figure 1 The diagram shows a cross-sectional view of a portion of the water collection cup used in a breathing tubing.
[0026] Figure 4 for Figure 1 The diagram shows a cross-sectional view of the water collection cup used in the breathing tubing during operation.
[0027] Figure 5 for Figure 4 The diagram shows a magnified view of part A of the water collection cup used for the breathing tubing.
[0028] Explanation of reference numerals in the attached figures:
[0029] Water collecting cup 100, cup body 10, cup lid 20, air inlet 21, air outlet 22, lid 23, connecting pipe 24, sealing element 30, drain outlet 31, annular anti-backflow part 32, radial extension part 33, mating part 34, movable part 40, main body 41, second guide post 411, annular flow guide part 412, first guide post 42, elastic element 50, flow gap AA, first annular flow channel BB, second annular flow channel CC. Detailed Implementation
[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0031] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0032] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0034] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0035] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0036] See Figure 1 , Figure 1 This is a cross-sectional structural diagram of a water collection cup for a breathing tubing according to one or more embodiments of this application. One embodiment of this application provides a water collection cup 100 for a breathing tubing, including a cup body 10, a cup lid 20, and a sealing element 30. The water collection cup 100 for a breathing tubing of this application can be used in a ventilator, which is a medical device capable of artificially replacing spontaneous breathing.
[0037] In this embodiment, the cup lid 20 can be placed on the cup body 10. The cup lid 20 is provided with an air inlet 21 and an air outlet 22 for connecting to the breathing tubing. Specifically, the cup lid 20 and the cup body 10 are connected by screwing. The breathing tubing is part of the ventilator. When the inner and outer walls of the breathing tubing are at different temperatures, condensation will form inside the breathing tubing. The condensation can flow through the air inlet 21 and the air outlet 22 on the cup lid 20 into the cup body 10 for collection, thereby preventing the condensation from flowing back into the patient's body along the breathing tubing and harming the patient's health. To simplify the connection between the air inlet 21 and the air outlet 22 and the breathing tubing, the top of the cup lid 20 is provided with an air inlet tube and an air outlet tube. The air inlet 21 is located at one end of the air inlet tube, and the air outlet 22 is located at one end of the air outlet tube. Due to the arrangement of the air inlet tube and the air outlet tube, the water collection cup 100 can be Y-shaped as a whole.
[0038] A sealing element 30 is disposed between the cup body 10 and the cup lid 20, and can seal the fitting gap between the cup body 10 and the cup lid 20. The sealing element 30 has a drain outlet 31, and the air inlet 21 and the air outlet 22 are connected to the interior of the cup body 10 through the drain outlet 31. When condensate from the breathing tube enters the air inlet 21 or the air outlet 22, it can enter the interior of the cup body 10 through the drain outlet 31 on the sealing element 30 for collection. Therefore, the sealing element 30 not only plays a sealing role, but its drain outlet 31 also plays a role in collecting condensate from the air inlet 21 and the air outlet 22.
[0039] The seal 30 also has an annular anti-backflow portion 32, one end of which surrounds the drain outlet 31, and the other end extends into the interior of the cup body 10 in a direction away from the cup lid 20.
[0040] When condensate is collected in the cup body 10, if the patient coughs violently, breathes rapidly, or the breathing equipment malfunctions, causing significant pressure fluctuations in the breathing tubing and resulting in the condensate sloshing around, or if the cup body 10 tilts and the condensate spills down to the drain outlet 31, the annular anti-backflow part 32, surrounding the drain outlet 31, can block the condensate and prevent it from directly flowing into the drain outlet 31. Furthermore, because it extends from the drain outlet 31 into the interior of the cup body 10, it also guides the condensate to flow into the interior of the cup body 10. The water collection cup 100 for breathing tubing in this embodiment effectively prevents condensate backflow, has a simple structure, reduces production costs, and facilitates daily operation and maintenance by medical personnel.
[0041] Combination Figure 2 and Figure 3Specifically, in the embodiments of this application, the sealing member 30 is fixed to the cup lid 20. When the cup lid 20 is separated from the cup body 10, the sealing member 30 can separate from the cup body 10 along with the cup lid 20. Specifically, the sealing member 30 also includes an annular radial extension 33, which surrounds the outer periphery of the annular anti-backflow portion 32 and extends radially away from the annular anti-backflow portion 32. The radial extension 33 is fixed to the cup lid 20 and is used to seal the mating gap between the cup body 10 and the cup lid 20.
[0042] Furthermore, the sealing element 30 also includes an annular fitting portion 34. One end of the annular fitting portion 34 is connected to the inner ring of the radial extension portion 33, and the other end extends away from the cup lid 20 and is connected to one end of the annular anti-backflow portion 32. The drain outlet 31 is provided on the connecting surface between the annular fitting portion 34 and the annular anti-backflow portion 32. The cup lid 20 includes a lid body 23 and a connecting pipe 24. The air inlet 21 and the air outlet 22 are both provided on the lid body 23. The connecting pipe 24 protrudes from the side of the lid body 23 facing the cup body 10 and connects the air inlet 21 and the air outlet 22. The connecting pipe 24 can be inserted into the inner ring of the annular fitting portion 34 of the sealing element 30, so that a seal can be formed between the connecting pipe 24 and the annular fitting portion. The condensate from the air inlet 21 and the air outlet 22 can be guided into the drain outlet 31 through the connecting pipe 24.
[0043] The annular fitting part 34 not only helps the fitting pipe 24 guide the condensate, but also fixes the sealing element 30, so that the sealing element 30 can be more reliably sealed between the cup body 10 and the cup lid 20.
[0044] In the embodiments of this application, the outer ring of the annular anti-backflow portion 32 is spaced apart from the inner wall of the cup body 10 along the circumferential direction. Thus, when condensate water in the cup body 10 ripples or spills, the space between the outer ring of the annular anti-backflow portion 32 and the cup body 10 allows the condensate water to disperse into this space, thereby reducing the amount of condensate water entering the annular anti-backflow portion 32 and consequently reducing the amount of condensate water entering the drain outlet 31.
[0045] Please refer to it again. Figure 1 In some embodiments, the annular anti-backflow portion 32 is at a distance L from the bottom surface of the cup body 10, and the depth of the cup body 10 is H, wherein 1 / 3H ≤ L ≤ 2 / 3H. Optionally, L = 1 / 3H.
[0046] By setting 1 / 3H≤L≤2 / 3H, the annular anti-backflow part 32 can prevent the condensate from flowing back without affecting the collection of condensate in the cup body 10, thus maximizing the function of the annular anti-backflow part 32.
[0047] In some embodiments, the inner diameter of the annular anti-backflow part 32 is d1, and the diameter of the drain outlet 31 is d2, wherein 1.1d2≤d1≤1.3d2. Optionally, d1=1.2d2.
[0048] This dimensional relationship enhances the guiding effect on the water flow direction by expanding the contact area between the annular anti-backflow part 32 and the drain outlet 31, while avoiding local pressure accumulation caused by perfect diameter matching, further improving the sealing effect and anti-backflow stability.
[0049] In some embodiments, the inner radial direction of the annular anti-backflow portion 32 gradually increases away from the drain outlet 31, thereby dispersing the water flow impact and guiding the condensate water to flow towards the bottom of the cup body 10. Specifically, in the cross-section of the annular anti-backflow portion 32, the inclination angle of the inner surface of the annular anti-backflow portion 32 relative to the vertical direction is 2 degrees to 5 degrees.
[0050] In some embodiments, the water collection cup 100 further includes a movable member 40, which is mounted on the cup lid 20 and movably disposed between the cup body 10 and the cup lid 20. When the cup lid 20 is separated from the cup body 10, the movable member 40 blocks the drain outlet 31. When the cup lid 20 is placed on the cup body 10, the movable member 40 opens the drain outlet 31.
[0051] Since the movable part 40 can seal the drain outlet 31 when the cup lid 20 is separated from the cup body 10, it can prevent condensate in the breathing tubing from leaking out of the drain outlet 31 through the air inlet 21 or the air outlet 22, and prevent the breathing tubing from communicating with the outside air through the drain outlet 31, thus affecting the normal use of the ventilator.
[0052] Please see Figure 4 and Figure 5 Furthermore, when the cup lid 20 is placed on the cup body 10, at least part of the movable part 40 extends into the drain 31, and forms a flow gap AA between the drain 31 and the air inlet 21 and the air outlet 22 and the interior of the cup body 10.
[0053] Since at least part of the moving part 40 extends into the drain outlet 31, this not only prevents condensate from flowing back from the inside of the cup body 10 to the air inlet 21 and the air outlet 22, but also reduces the flow area of the drain outlet 31 without affecting the collection of condensate, thus further achieving the effect of preventing backflow.
[0054] Furthermore, the movable component 40 includes a main body 41 and a first guide post 42. One end of the first guide post 42 is connected to the main body 41, and the other end extends from the drain outlet 31 into the annular anti-backflow part 32. A first annular flow channel BB is formed between the first guide post 42 and the annular anti-backflow part 32. The first annular flow channel BB connects the drain outlet 31 and the interior of the cup body 10.
[0055] Since the first guide post 42 extends into the annular anti-backflow section 32 through the drain outlet 31, it can act as a guide for the movable part 40, guiding its movement. Furthermore, because the first guide post 42 extends into the annular anti-backflow section 32, it can block condensate entering the annular anti-backflow section 32, reducing the possibility of condensate backflow.
[0056] In some embodiments, the main body 41 of the movable component 40 includes a second guide post 411 and an annular guide portion 412. The annular guide portion 412 connects the first guide post 42 and the second guide post 411. The first guide post 42 extends into the connecting pipe 24 described above and forms a second annular flow channel CC with the connecting pipe 24. The second annular flow channel CC connects the drain outlet 31 with the air inlet 21 and the air outlet 22. By providing the second guide post 411, it can cooperate with the connecting pipe 24 to guide the movement of the movable component 40, making the movement of the movable component 40 more stable.
[0057] Furthermore, the outer radial direction of the annular guide portion 412 gradually decreases towards the first guide post 42. This allows condensate to flow rapidly towards the drain outlet 31 under gravity. Conversely, if condensate attempts to flow from the drain outlet 31 towards the air inlet 21 and air outlet 22, the gap between the annular guide portion 412 and the seal 30 gradually decreases with the flow direction. Therefore, the annular guide portion 412 further prevents backflow of condensate.
[0058] In addition, the annular guide portion 412 is used to seal the drain outlet 31, wherein the inner surface of the drain outlet 31 matches the outer surface of the annular guide portion 412. This allows the annular guide portion 412 to achieve a better sealing effect on the drain outlet 31.
[0059] In some embodiments, the water collecting cup 100 further includes an elastic element 50, which is compressed between the cup lid 20 and the movable element 40 to provide a pre-tightening force for the movable element 40 to seal the drain outlet 31. When the cup lid 20 is placed on the cup body 10, the first guide post 42 of the movable element 40 can abut against the bottom of the cup body 10 to overcome the pre-tightening force of the elastic element 50 and open the drain outlet 31.
[0060] By setting the elastic element 50, the movable element 40 can keep the drain outlet 31 sealed when the cup body 10 is separated from the cup lid 20, so that the drain outlet 31 is reliably sealed.
[0061] In order to make the elastic element 50 stable during compression and expansion, in the embodiments of this application, positioning bosses or positioning grooves are provided at corresponding positions of the cup lid 20 and the movable element 40, and the two ends of the elastic element 50 can cooperate with the positioning bosses or positioning grooves to achieve positioning.
[0062] In summary, when the water collection cup 100 of this application starts working, condensate can enter the cup body 10 from the air inlet 21 and the air outlet 22 through the drain outlet 31 on the seal 30. As the usage time increases, the amount of condensate continuously increases. When the water collection cup 100 tilts or the pressure in the breathing tubing fluctuates significantly during operation, the annular anti-backflow part 32 at the bottom of the seal 30 can prevent the direct outflow of condensate, thereby ensuring the safety of patients during respiratory therapy and reducing the medical risks caused by condensate backflow. At the same time, due to its simple structure, it reduces production costs and facilitates daily operation and maintenance by medical staff.
[0063] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0064] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A trap cup for a breathing circuit, characterized by, The cup body comprises: a cup body; a cup cover capable of being covered on the cup body, the cup cover being provided with an air inlet and an air outlet both for connecting with a breathing pipeline; a sealing element provided between the cup body and the cup cover, the sealing element having a drain opening, the air inlet and the air outlet being communicated with the inside of the cup body through the drain opening; wherein the sealing element further comprises an annular anti-backflow part, one end of the annular anti-backflow part surrounding the drain opening and the other end extending to the inside of the cup body in a direction away from the cup cover. The outer circle of the annular anti-backflow part is spaced apart from the inner wall of the cup body in the circumferential direction.
2. A trap cup for a breathing tube according to claim 1, characterized in that The distance between the annular anti-backflow part and the bottom surface of the cup body is L, and the depth of the cup body is H, wherein 1 / 3H≤L≤2 / 3H.
3. A trap cup for a breathing tube according to claim 1, wherein, The inner diameter of the annular anti-backflow part is d1, and the diameter of the drain opening is d2, wherein 1.1d2≤d1≤1.3d2.
4. The water trap for a breathing tube according to claim 1, characterized in that, The sealing element is fixed on the cup cover.
5. The water trap for a breathing circuit according to claim 1, wherein The water collecting cup further comprises a movable element, the movable element being installed on the cup cover and movably provided between the cup cover and the cup body; 6. A trap cup for a breathing tube as defined in claim 5, characterized in that when the cup cover and the cup body are separated, the movable element seals the drain opening; when the cup cover is covered on the cup body, the movable element opens the drain opening. When the cup cover is covered on the cup body, at least part of the movable element extends into the drain opening and forms a flow gap between the drain opening, the air inlet and the air outlet and the inside of the cup body.
7. A trap cup for a breathing tube as defined in claim 6, characterized in that The movable element comprises a main body and a first guide column, the main body being provided between the cup cover and the sealing element, one end of the first guide column being connected to the main body and the other end extending into the annular anti-backflow part from the drain opening; 8. A trap cup for a breathing tube as defined in claim 7, characterized in that a first annular flow channel is formed between the first guide column and the annular anti-backflow part, the first annular flow channel being communicated with the drain opening and the inside of the cup body. The main body comprises an annular flow guide part, one end of the first guide column being connected to the annular flow guide part, and the outer diameter of the annular flow guide part gradually decreasing in a direction close to the first guide column.
9. A trap cup for a breathing tube as defined in claim 8, characterized in that The water collecting cup and the breathing pipeline for the breathing pipeline according to any one of claims 1-9 are provided, the air inlet and the air outlet being connected with the breathing pipeline.
10. A breathing machine characterized by,