A tee connector on a medical hose and a breathing circuit

Abstract

The utility model discloses a three -way connector and breathing pipeline on medical hose, wherein three -way connector on medical hose, including body, the body has the head and tail portion that are connected as a whole, the head is equipped with a first joint and two second joints, and the first joint is used for communicating with the first connecting pipe, and two second joints are used for communicating with the second connecting pipe and third connecting pipe respectively, and at least one side of tail portion is provided with clamping assembly, and clamping assembly includes elastic clamp and shoulder, and the free end of elastic clamp can be connected with the shoulder in a plurality of clamping positions and is limited, to the second connecting pipe or third connecting pipe implements different degrees of clamping, thereby realizes the airflow on-off control, and the shoulder can be elastically deformed to the direction of far away from elastic clamp under the stress action, to remove the clamping state and restore the pipeline unobstructed. The utility model through the adjustable clamping structure that integrates elastic clamp and shoulder constitutes, realized the interception and flow control of branch airflow.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a three-way connector for a medical hose and a breathing tubing. Background Technology

[0002] In modern mechanical ventilation systems, ventilators deliver gas to a patient's lungs through breathing tubing to maintain or assist ventilation. To enable various ventilation modes and loop control, three-way connectors are widely used in tubing systems, primarily serving to distribute airflow. Common three-way connectors typically employ a one-in-two-out or two-in-one-out configuration, allowing gas to be split or combined between different pathways.

[0003] However, most existing three-way valve designs only have basic flow guidance functions, lacking a cutoff mechanism for the branches, and cannot achieve independent blockage or temporary isolation of a particular pathway without relying on additional valves. This design limits its application in more complex ventilation control strategies, such as clinical needs like maintaining positive end-expiratory pressure, collateral channel sampling, or branch flow regulation. Utility Model Content

[0004] This utility model aims to solve one of the technical problems in related technologies to a certain extent. To this end, the embodiments of this utility model propose a three-way connector and breathing tubing on a medical hose. By integrating an elastic clip and a shoulder to form an adjustable clamping structure, it can intercept and regulate the airflow of the branch, and complete the on / off control without external valves, thereby improving the operational flexibility and maintenance efficiency of the ventilation system. It is suitable for clinical needs such as rapid switching of ventilation paths and branch sampling.

[0005] To address the aforementioned technical problems, this utility model embodiment also proposes a breathing tubing with a three-way connector on the aforementioned medical tubing. The technical solution adopted is as follows: a three-way connector on a medical tubing is provided, comprising a body having a head and a tail integrally connected. The head has a first connector and two second connectors. The first connector is used to communicate with a first connecting tube, and the two second connectors are respectively used to communicate with a second connecting tube and a third connecting tube. At least one side of the tail is provided with a clamping assembly, which includes an elastic clamp and a shoulder. The free end of the elastic clamp can be limited and connected to the shoulder at multiple clamping positions to clamp the second or third connecting tube to different degrees, thereby achieving airflow interruption control. The shoulder can elastically deform away from the elastic clamp under force to release the clamping state and restore tubing patency.

[0006] With the above structure, the three-way connector on the medical tubing retains the traditional airflow distribution function while further realizing the physical interception and adjustable control of branch gas flow, thus effectively expanding its application range in mechanical ventilation systems. Through the multi-level limiting cooperation between the elastic clip and the shoulder in the clamping assembly, progressive clamping adjustment of the branch connection tube can be implemented, achieving both complete blockage of branch airflow and partial flow restriction, meeting the needs of refined flow control. Furthermore, when temporary restoration of ventilation or tubing replacement is required, the operator only needs to apply external force to cause elastic deformation of the shoulder to quickly release the clamping state, without disassembly or additional tool intervention, significantly improving ease of use and clinical operational efficiency. This solution, through structural innovation, replaces the traditional method of relying on external valves for flow interception, effectively reducing the complexity and maintenance cost of the ventilation system while ensuring the stability and safety of the respiratory pathway. It is particularly suitable for medical scenarios requiring rapid switching of ventilation pathways, control of side branch opening / closing, or sampling of respiratory parameters, demonstrating good practical value and promising prospects for widespread application.

[0007] In one possible implementation, the first connector is located at one end of the head and serves as the gas inlet and outlet of the main passage; the two second connectors are symmetrically distributed at the opposite ends of the head and are respectively used to connect with branch connection pipes to realize gas diversion or merging.

[0008] Compared with existing technologies, the above-mentioned technical solution effectively improves the efficiency of airflow distribution, making the adjustment of gas flow direction more precise and stable, and reducing the disorder of airflow distribution. Compared with existing technologies, the diversion or merging of branch airflow is more controllable and can adapt to different clinical needs, such as maintaining positive end-expiratory pressure and shunt gas sampling, thereby improving the adaptability and functionality of the ventilation system.

[0009] In one possible implementation, one end of the head is provided with a groove, and the first connector is located within the groove, providing a certain degree of embedded protection for the first connector without affecting the connection function. The groove can reduce external force interference and wear on the connector during actual operation, thus extending its service life.

[0010] Compared with existing technologies, the above technical solution effectively improves the stability of the connector, prevents the influence of external forces during long-term use or operation, extends the service life of the connector and the overall connector, and reduces connection problems caused by improper operation or environmental interference, thereby improving the reliability and durability of the product.

[0011] In one possible implementation, the head is provided with an annular channel communicating with the first connector, and both second connectors are connected to the annular channel to achieve gas convergence or diversion within the channel.

[0012] Compared with existing technologies, the above technical solution, by setting up an annular channel, makes the gas flow smoother and avoids uneven or turbulent phenomena in the airflow distribution process. The above design not only ensures efficient gas convergence or diversion, but also effectively reduces airflow resistance and improves ventilation efficiency. The annular channel solution makes the airflow distribution more stable and enhances the reliability and accuracy of the system.

[0013] In one possible implementation, the first connector is connected to the annular channel via a pair of symmetrically arranged connecting channels.

[0014] Compared with the existing technology, the above technical solution, through the pair of symmetrically arranged connecting channels, with the first connector connected to the annular channel, allows the airflow to enter the annular channel evenly. The symmetrical arrangement can effectively avoid the flow deviation phenomenon during the airflow process, ensure the stable distribution of gas in the annular channel, and avoid pressure instability caused by uneven airflow distribution through reasonable design.

[0015] In one possible implementation, the shoulder surface is provided with a plurality of locking teeth for engaging with the free end of the elastic clamp to lock, thereby achieving adjustable and graded clamping positions.

[0016] Compared with the prior art, the above technical solution, by setting multiple locking tooth structures on the shoulder surface, allows the free end of the elastic clip to be locked at different locking tooth positions, thereby achieving adjustable and graded clamping positions; the locking tooth structure forms a precise locking mechanism between the shoulder and the elastic clip, which can be adjusted to different degrees as needed, ensuring that the clamping force can be adjusted according to actual needs, avoiding over-clamping or under-clamping.

[0017] In one possible implementation, the elastic clip is provided with a first through hole, and the shoulder is provided with a corresponding second through hole. The second connecting tube or the third connecting tube can pass through the first through hole and the second through hole and communicate with the second connector.

[0018] Compared with the existing technology, the above technical solution provides a first through hole and a second through hole on the elastic clamp and the shoulder, respectively, so that the second or third connecting pipe can pass through the through hole and connect with the second connector. By setting these two through holes, it is ensured that the branch pipeline can pass smoothly during the clamping operation and maintain a stable connection with the connector, so that the clamping and airflow control mechanism is seamlessly integrated with the physical connection of the pipeline.

[0019] In one possible implementation, the inner side of the elastic clamp is provided with a protruding abutment, which is used to apply pressure to the second or third connecting pipe located between the first through hole and the second through hole in the clamped state, so as to temporarily compress the pipe diameter and reduce or block the airflow.

[0020] Compared with the prior art, the above technical solution, by setting a protruding abutment on the inner side of the elastic clamp, allows the abutment to apply radial pressure to the pipe passing through the first and second through holes when clamped. This pressure will temporarily compress the inner diameter of the pipe, thereby reducing the airflow channel or completely blocking the airflow, providing more precise airflow control. The airflow is regulated by physically compressing the pipe, without the need for additional valves or mechanical devices.

[0021] In one possible implementation, a pair of clamping components are symmetrically arranged on both sides of the tail.

[0022] Compared with the prior art, the above technical solution, with the clamping components symmetrically arranged on both sides of the tail, ensures that the two branch pipes (the second connecting pipe and the third connecting pipe) can be adjusted independently during the clamping process; this symmetrical clamping design ensures the balance of airflow control, can control the two branch pipes at the same time, and the two clamping components work independently of each other, thereby enhancing the flexibility of airflow distribution and adjustment.

[0023] This utility model also provides a breathing tubing, including a three-way connector on any of the above-described medical tubing. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a perspective view of the three-way connector on the medical tubing in an embodiment of this utility model.

[0026] Figure 2 This is a cross-sectional view of the three-way connector on the medical tubing in an embodiment of this utility model.

[0027] Figure 3 This is a perspective view of the three-way connector body on the medical hose in an embodiment of this utility model.

[0028] Figure 4 This is a schematic diagram of the structure of the three-way connector body on the medical hose in this embodiment of the present invention.

[0029] Figure 5 This is a half-sectional perspective view of the three-way connector body on the medical hose in this embodiment of the present invention.

[0030] Figure 6 This is an end view of the three-way connector body on the medical hose in an embodiment of this utility model.

[0031] Figure 7 for Figure 6 A cross-sectional view along line AA in the middle.

[0032] Figure 8 for Figure 6 A cross-sectional view along the BB line.

[0033] Explanation of the labels in the diagram: 1. Main body; 2. First connecting pipe; 3. Second connecting pipe; 4. Third connecting pipe; 11. Head; 12. Tail; 13. First connector; 14. Second connector; 15. Elastic clip; 16. Shoulder; 17. Groove; 11a. Connecting channel; 11b. Circular channel; 15a, First through hole; 15b, Reaching the top; 16a, Second through hole; 16b, Locking tooth. Detailed Implementation

[0034] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0035] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0036] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through 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. "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.

[0037] This utility model provides a three-way connector for a medical hose, including a body having a head and a tail integrally connected. The head has a first connector and two second connectors. The first connector is used to communicate with a first connecting tube, and the two second connectors are used to communicate with a second connecting tube and a third connecting tube, respectively. At least one side of the tail is provided with a clamping assembly, which includes an elastic clamp and a shoulder. The free end of the elastic clamp can be limited and connected to the shoulder at multiple clamping positions to clamp the second or third connecting tube to different degrees, thereby realizing airflow interruption control. The shoulder can elastically deform away from the elastic clamp under force to release the clamping state and restore the tube patency.

[0038] As a preferred embodiment, the first connector is disposed at one end of the head, and the two second connectors are symmetrically disposed at the opposite ends of the head.

[0039] As a preferred embodiment, one end of the head is provided with a groove, and the first connector is located in the groove.

[0040] As a preferred embodiment, the head is provided with an annular channel communicating with the first connector, and both second connectors are connected to the annular channel to realize the convergence or diversion of gas in the channel.

[0041] As a preferred embodiment, the first connector is connected to the annular channel via a pair of symmetrically arranged connecting channels.

[0042] As a preferred embodiment, the shoulder surface is provided with multiple locking teeth for engaging with the free end of the elastic clamp to lock, thereby achieving adjustable and graded clamping positions.

[0043] As a preferred embodiment, the elastic clip is provided with a first through hole, and the shoulder is provided with a corresponding second through hole. The second connecting tube or the third connecting tube can pass through the first through hole and the second through hole and communicate with the second connector.

[0044] As a preferred embodiment, the inner side of the elastic clamp is provided with a protruding abutment, which is used to apply pressure to the second or third connecting pipe located between the first through hole and the second through hole in the clamped state, so as to temporarily compress the pipe diameter and reduce or block the airflow.

[0045] As a preferred embodiment, a pair of clamping components are symmetrically arranged on both sides of the tail.

[0046] This utility model also provides a breathing tubing, which includes the three-way connector on the aforementioned medical tubing.

[0047] The technical solution of this utility model will be further elaborated below: like Figure 1-8 As shown, this embodiment provides a three-way connector for a medical flexible tube, including a body 1. The body 1 is composed of a head 11 and a tail 12, which are connected as a single unit and formed by injection molding. In some other embodiments, it is formed by 3D printing.

[0048] The head 11 is located at one end of the body 1. Structurally, it has a first connector 13 and two second connectors 14. The first connector 13 is located at the upper end of the head 11 and is used to connect to the first connecting pipe 2, serving as the main gas channel and typically undertaking the main function of gas inflow and outflow in the ventilation system. The two second connectors 14 are symmetrically arranged at the opposite ends of the head 11 and are used to connect to the second connecting pipe 3 and the third connecting pipe 4, respectively. They serve as branch channels for gas, thus forming a three-way structure with one inflow and two outflows or two inflows and one outflow, realizing the function of gas convergence or diversion.

[0049] To improve connection stability and operational safety, the first connector 13 is embedded in the groove 17 provided at the front end of the head 11. The groove 17 helps to limit the insertion depth of the first connecting tube 2, preventing it from falling off or being damaged due to pulling or twisting. At the same time, it can also play a structural buffering and protective role in practical applications, extending the life of the connector.

[0050] The head 11 has an annular channel 11b communicating with the first connector 13, which forms a gas passage between the first connector 13 and the two second connectors 14. This annular channel 11b has a continuous and smooth inner wall structure, which facilitates stable gas transmission, reduces flow resistance and turbulence risk, and improves ventilation efficiency. Both second connectors 14 are connected to this annular channel 11b, enabling the convergence and diversion of airflow between different passages.

[0051] Furthermore, the first connector 13 is connected to the aforementioned annular channel 11b via a pair of symmetrically arranged connecting channels 11a. This symmetrical arrangement helps to maintain air pressure balance when the airflow enters or leaves the annular channel 11b, thus avoiding flow deviation.

[0052] The tail portion 12 is located at one end opposite to the body 1 and is used to carry the clamping assembly to achieve clamping and release control of the connecting pipe. Specifically, a clamping assembly is provided on at least one side of the tail portion 12. Preferably, a pair of clamping assemblies are symmetrically arranged on the left and right sides, respectively controlling the on / off state of the second connecting pipe 3 and the third connecting pipe 4, thereby enhancing the independence and flexibility of the structure's functions.

[0053] Each clamping assembly includes a spring clip 15 and a shoulder 16. One end of the spring clip 15 is fixedly connected to the body 1, and its free end extends toward the shoulder 16 and has a limiting clamping function. The shoulder 16 is located on both sides of the tail 12, and its surface is provided with multiple locking teeth 16b structures. The locking teeth 16b are arranged at a certain interval and cooperate with the free end of the spring clip 15 to form a multi-level limiting mechanism. The operator can apply different degrees of clamping force to the pipeline by changing the cooperation position between the spring clip 15 and the locking teeth 16b of the shoulder 16, thereby achieving gradual adjustment or complete blockage of the branch flow.

[0054] Furthermore, to enhance the functionality of the clamping assembly, the elastic clamp 15 is provided with a first through hole 15a, and the shoulder 16 is provided with a corresponding second through hole 16a. The branch pipe (i.e., the second connecting pipe 3 or the third connecting pipe 4) passes through the above-mentioned through holes and communicates with the second connector 14. A protruding abutment 15b is provided on the inner side of the elastic clamp 15. When the elastic clamp 15 is in the clamping state, the abutment 15b can apply radial extrusion force to the pipe between the through holes, thereby compressing the pipe cross-section and achieving the purpose of reducing the flow rate or temporarily blocking the airflow.

[0055] When ventilation needs to be restored or the pipeline needs to be replaced, the operator only needs to apply external force to cause the shoulder 16 to elastically deform away from the elastic clip 15, which will release the limiting relationship between the locking teeth 16b. The free end of the elastic clip 15 switches from the engaged state with the locking teeth 16b to the disengaged state. The free end of the elastic clip 15 rebounds to the relaxed state under its own elasticity, quickly releasing the pipeline. There is no need to disassemble parts or use external tools, which significantly improves the convenience of actual use and the efficiency of emergency handling.

[0056] In addition, the solution provides a breathing tubing, including a three-way connector on the medical tubing described in this embodiment, which can be flexibly integrated with existing ventilators, humidifiers or breathing mask systems.

[0057] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In the description of the embodiments of this application, it should be noted that the terms "inner" and "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0060] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] 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 technical scope 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 three-way connector for a medical flexible tube, characterized in that, The device includes a body (1), which has a head (11) and a tail (12) that are connected as one piece. The head (11) is provided with a first connector (13) and two second connectors (14). The first connector (13) is used to communicate with a first connecting pipe (2), and the two second connectors (14) are used to communicate with a second connecting pipe (3) and a third connecting pipe (4) respectively. At least one side of the tail (12) is provided with a clamping assembly, which includes an elastic clamp (15) and a shoulder (16). The free end of the elastic clamp (15) can be connected to the shoulder (16) at multiple clamping positions to clamp the second connecting pipe (3) or the third connecting pipe (4) to different degrees, thereby realizing the control of airflow interruption. The shoulder (16) can be elastically deformed away from the elastic clamp (15) under the action of force to release the clamping state and restore the pipeline to unobstructed flow.

2. The tee connector for a medical flexible tube according to claim 1, characterized in that: The first connector (13) is disposed at one end of the head (11), and the two second connectors (14) are symmetrically disposed at the opposite ends of the head (11).

3. A three-way connector for a medical flexible tube according to claim 2, characterized in that: One end of the head (11) is provided with a groove (17), and the first connector (13) is located in the groove (17).

4. A three-way connector for a medical flexible tube according to claim 3, characterized in that: The head (11) is provided with an annular channel (11b) that communicates with the first connector (13). Both second connectors (14) are connected to the annular channel (11b) to realize the convergence or diversion of gas in the channel.

5. A three-way connector for a medical flexible tube according to claim 4, characterized in that: The first connector (13) is connected to the annular channel (11b) through a pair of symmetrically arranged connecting channels (11a).

6. A three-way connector for a medical flexible tube according to claim 1, characterized in that: The shoulder (16) surface is provided with a plurality of locking teeth (16b) for engaging with the free end of the elastic clip (15) to lock, thereby achieving adjustable levels of clamping position.

7. A three-way connector for a medical flexible tube according to claim 6, characterized in that: The elastic clip (15) is provided with a first through hole (15a), and the shoulder (16) is provided with a corresponding second through hole (16a). The second connecting tube (3) or the third connecting tube (4) can pass through the first through hole (15a) and the second through hole (16a) and communicate with the second connector (14).

8. A three-way connector for a medical flexible tube according to claim 7, characterized in that: The inner side of the elastic clip (15) is provided with a protruding abutment (15b), which is used to apply pressure to the second connecting pipe (3) or the third connecting pipe (4) located between the first through hole (15a) and the second through hole (16a) in the clamped state, so as to temporarily compress the pipe diameter and reduce or block the airflow.

9. A tee connector for a medical flexible tube according to any one of claims 1-8, characterized in that: A pair of clamping components are symmetrically arranged on both sides of the tail (12).

10. A breathing tubing, characterized in that: Includes the tee connector on the medical tubing as described in any one of claims 1-9.

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