Flexible joint for breathing circuit
By using a flexible collar with a U-shaped notch at the breathing tubing connector to work with the adapter, the problems of air leakage and detachment caused by uneven glue application are solved, achieving fast and reliable tubing connection, improving production efficiency and safety in clinical use.
Patent Information
- Application Number
- CN202422856791.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-11-22
AI Technical Summary
The existing breathing tubing has the potential to leak due to uneven glue application during connection, and there is also the risk of it falling off during dragging, which affects the timeliness and safety of patient treatment.
The flexible collar with a U-shaped notch is used in conjunction with the adapter to achieve a sealed connection through insertion and rotational compression, reducing or eliminating the use of glue and improving the reliability and stability of the connection.
It enables fast and reliable tubing connections, reduces the risk of air leakage and the probability of detachment, improves production efficiency and adaptability, and enhances the reliability and safety of clinical use.
Smart Images

Figure CN223817996U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical equipment technology, specifically to a flexible connector for a breathing circuit. Background Technology
[0002] Breathing tubing is primarily used to assist patients with breathing difficulties or those unable to breathe independently, maintaining their airway patency. It typically consists of a flexible tube with good sealing and airway patency, delivering oxygen and anesthetic drugs to the patient while expelling carbon dioxide and other waste gases. Breathing tubing comprises multiple components, including ventilator connection tubing, a face mask, a cuff, and an airway tube, which can be combined and replaced according to the patient's specific condition and treatment needs. During use, it is crucial to ensure a tight, leak-free connection and close monitoring of the patient's respiratory parameters to guarantee their safety.
[0003] When assembling breathing tubing components such as Y-shaped water cups or masks, adhesive needs to be applied to the Y-shaped connector and the breathing tubing connector. This increases the adhesive drying time, prolongs the production cycle, and poses a risk of air leakage due to uneven adhesive application, potentially delaying the delivery of oxygen or anesthetic gas to the patient and thus hindering treatment. Existing disposable breathing tubing kits use an adhesive bonding process for delivering oxygen or anesthetic gas. The drawbacks of this structure include uneven adhesive application, the need for airtightness testing, and a relatively long drying time. This also poses a risk of the tubing kit detaching during hospital use, as doctors or nurses may pull on it. Utility Model Content
[0004] The purpose of this invention is to provide a flexible connector for a breathing circuit to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a flexible connector for a breathing circuit, comprising a breathing tubing and a water collection cup, and further comprising:
[0006] A Y-shaped connector is installed at one end of the breathing tubing. A conversion connector is fitted at one end of the breathing tubing. A flexible collar is fitted on the outside of the conversion connector. A ventilator is installed on one side of the flexible collar. A first connecting sleeve is fitted on the outside of the Y-shaped connector. A second connecting sleeve is fitted on the outside of the first connecting sleeve. The second connecting sleeve is located on the outside of the breathing tubing. A water collection cup is located at the bottom of the Y-shaped connector.
[0007] Preferably, the ventilator is equipped with a display screen and control buttons.
[0008] Preferably, the bottom of the ventilator is provided with casters to facilitate the movement of the main body, and the number of casters is set to four sets.
[0009] Preferably, a control switch is provided on one side of the ventilator for convenient control of the main body.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] This utility model relates to a new type of breathing tubing kit with a connector mating structure. Specifically, it utilizes an annular U-shaped notch at the Y-shaped connector end of the water-collecting cup to embed a flexible collar. During the mating process, forceful rotation and compression of the flexible collar achieves a tight seal and tension at the internal connection point of the tubing connector, significantly reducing adhesive drying time and resolving issues such as detachment, low assembly efficiency, and air leakage. This increases the reliability and stability of disposable breathing tubing kits. The structure is simple, easy to operate, and highly practical, greatly reducing after-sales problems and rework costs. It is also compatible with various ventilators, eliminating the need for dedicated connectors for different ventilators. Attached Figure Description
[0012] Figure 1 A schematic diagram of a preferred embodiment of the flexible connector for a breathing circuit provided by this utility model;
[0013] Figure 2 A schematic diagram of the breathing tubing and Y-type connector structure provided by this utility model;
[0014] Figure 3 Schematic diagrams of the first and second connecting sleeves provided by this utility model;
[0015] Figure 4 A schematic diagram of the water collection cup and Y-type connector provided by this utility model.
[0016] In the diagram: 1. Breathing tubing; 2. Fluid collection cup; 3. Y-connector; 4. Adaptor; 5. Flexible collar; 6. Ventilator; 7. First connecting sleeve; 8. Second connecting sleeve; 9. External thread; 10. Internal thread; 11. Display screen; 12. Control button; 13. Casters; 14. Control switch. Detailed Implementation
[0017] 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.
[0018] Please see Figures 1-4As shown, a flexible connector for a breathing circuit includes a breathing tubing 1 and a water collection cup 2. One end of the breathing tubing 1 is equipped with a Y-type connector 3, which facilitates connection between the breathing tubing 1 and the water collection cup 2. One end of the breathing tubing 1 is fitted with a conversion connector 4. The breathing tubing 1 is fixed to the Y-type connector 3 with adhesive to achieve a seal. A flexible collar 5 is fitted on the outer side of the conversion connector 4. Through the cooperative use of the conversion connector 4 and the flexible collar 5, the flexible collar 5 needs to be forcefully rotated and squeezed against the conversion connector 4. The connection is press-fitted, eliminating the need for glue and facilitating the connection between the breathing tubing 1 and the ventilator 6. The ventilator 6 is located on one side of the flexible collar 5. A first connecting sleeve 7 is fitted on the outside of the Y-type connector 3, and a second connecting sleeve 8 is fitted on the outside of the first connecting sleeve 7. The second connecting sleeve 8 is located on the outside of the breathing tubing 1. By using the first connecting sleeve 7 and the second connecting sleeve 8 together, the connection between the breathing tubing 1 and the Y-type connector 3 can be easily achieved. The first connecting sleeve 7 is made of a flexible material, and the water collection cup 2 is located at the bottom of the Y-type connector 3.
[0019] The ventilator 6 is equipped with a display screen 11 and control buttons 12. The display screen 11 allows for convenient data display, and the control buttons 12 allow for convenient data control.
[0020] The bottom of the ventilator 6 is equipped with four sets of casters 13 to facilitate the movement of the main body.
[0021] A control switch 14 is provided on one side of the ventilator 6 for convenient control of the main body; the main body can be conveniently controlled by the control switch 14.
[0022] Working Principle: First, cut the required length of the breathing tubing 1 and attach the corresponding adapter 4. Secure one end with glue. Connect the adapter 4 to the water collection cup 2. Assemble the corresponding cup body components and tighten the Y-shaped connector 3. Then, slip the silicone collar onto one end of the groove in the Y-shaped connector 3 of the water collection cup 2. During the insertion of the two connectors, forcefully rotate and compress the flexible collar 5. The elasticity and toughness of the flexible collar 5 achieves a seal and tension at the tubing connection, preventing the aforementioned issues. The connector uses a ring-shaped U-shaped notch based on the insertion structure, embedding a ring-shaped silicone sleeve. This increases the contact area between the internal tubing walls at the connector. The elasticity and toughness of the flexible collar 5 achieves a seal and tension at the tubing connection, preventing detachment and leakage. The connector can be glue-free, reducing glue drying time and improving production efficiency. This also facilitates clinical use. Furthermore, this flexible collar 5 is compatible with multiple different ventilators 6; simply slip the flexible collar 5 onto the breathing management port for use.
[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A flexible connector for a breathing circuit, comprising a breathing tubing (1) and a water collection cup (2), characterized in that, Also includes: A Y-shaped connector (3) is provided at one end of the breathing tubing (1). A conversion connector (4) is fitted at one end of the breathing tubing (1). A soft collar (5) is fitted on the outside of the conversion connector (4). A ventilator (6) is provided on one side of the soft collar (5). A first connecting sleeve (7) is fitted on the outside of the Y-shaped connector (3). A second connecting sleeve (8) is fitted on the outside of the first connecting sleeve (7). The second connecting sleeve (8) is located on the outside of the breathing tubing (1). A water collection cup (2) is located at the bottom of the Y-shaped connector (3).
2. The flexible connector for a breathing circuit according to claim 1, characterized in that: The ventilator (6) is equipped with a display screen (11) and control buttons (12).
3. The flexible connector for a breathing circuit according to claim 1, characterized in that: The bottom of the ventilator (6) is provided with casters (13) to facilitate the movement of the main body, and the number of casters (13) is set to four sets.
4. The flexible connector for a breathing circuit according to claim 1, characterized in that: The ventilator (6) has a control switch (14) on one side for easy control of the main body.