Respiratory circuit connector

Abstract

The utility model relates to the technical fields of breathing joint provides a breathing circuit joint, including breathing pipe, hard glue reinforcing part, fastening sealing assembly and soft glue appearance spare. Hard glue reinforcing part is located at the end of breathing pipe, and hard glue reinforcing part includes fixedly connected connection in proper order, abutting portion and reinforcing portion, and the connection is located at the inside of breathing pipe and is connected with breathing pipe, fastening sealing assembly is surrounded at the periphery of breathing pipe and connection and carries out fastening sealing to its junction, and the end of fastening sealing assembly and abutting portion abut, soft glue appearance spare is through injection molding process injection molding and covers reinforcing portion, and soft glue appearance spare and reinforcing portion injection molding. Through increase setting hard glue reinforcing part, and soft glue appearance spare is through injection molding process injection and injection molding with reinforcing portion, and it not only firm structure, also has improved the soft glue joint clamping force, and further improved the pulling force after breathing circuit joint and medical equipment connection, and will not appear the phenomenon of loosening.

Description

Technical Field

[0001] This utility model relates to the field of breathing connector technology, and more specifically, to a breathing circuit connector. Background Technology

[0002] A breathing circuit connector is a connector located at one end of a ventilator tubing for connecting to medical devices, such as ventilators or other equipment. Existing heating wire-equipped breathing circuit connectors are made by using a bushing to secure the breathing tubing, followed by a secondary injection molding process to create the connector. However, after prolonged storage and repeated insertions and removals, the clamping force of the connector may decrease, resulting in insufficient tensile strength when connected to the medical device. This can lead to a risk of loosening and compromise the safe use of the medical device. Utility Model Content

[0003] The purpose of this invention is to provide a breathing circuit connector to solve the technical problem of insufficient clamping force of soft rubber connectors in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a breathing circuit connector, comprising: breathing tube; A rigid plastic reinforcing member is provided at the end of the breathing tube. The rigid plastic reinforcing member includes a connecting part, an abutting part, and a reinforcing part that are fixedly connected in sequence. The connecting part is located inside the breathing tube and is connected to the breathing tube. A fastening and sealing assembly is provided around the connection between the breathing tube and the connecting part and to fasten and seal the connection. The end of the fastening and sealing assembly abuts against the abutting part. A soft rubber outer part, wherein the soft rubber outer part is injection molded to cover the reinforcing part, and the soft rubber outer part and the reinforcing part are injection molded together.

[0005] According to the breathing circuit connector described above, the reinforcing part is a hollow cylinder, and the bottom of the outer wall of the hollow cylinder is provided with a plurality of first grooves, and a corresponding first protrusion is formed between two adjacent first grooves. The inner wall of the soft rubber outer part has a second protrusion corresponding to the first groove, and a second groove corresponding to the first protrusion is formed between two adjacent second protrusions.

[0006] According to the breathing circuit connector described above, a step is provided at the bottom of the inner wall of the hollow cylinder.

[0007] According to the breathing circuit connector described above, at least one notch is provided at the end of the hollow cylinder away from the connecting part.

[0008] According to the breathing circuit connector described above, the depth of the notch is 3 / 4 of the depth of the hollow cylinder.

[0009] According to the breathing circuit connector described above, the exterior of the soft rubber outer part is also provided with at least one anti-slip part.

[0010] According to the breathing circuit connector described above, the outer wall of the breathing tube is provided with a threaded post, and a heating wire is provided inside the threaded post; The fastening and sealing assembly includes: A soft rubber sleeve is fitted onto the breathing tube, and the shape of the soft rubber sleeve is deformed according to the shape of the breathing tube. A bushing, the inner wall of which is provided with a threaded groove, is fitted onto the outer wall of the soft rubber sleeve, and the threaded groove covers the outside of the soft rubber sleeve and compresses the soft rubber sleeve.

[0011] According to the above-described breathing circuit connector, the fastening and sealing assembly further includes a locking sleeve, which is fitted onto the outer wall of the bushing, and the top end of the locking sleeve is ultrasonically welded to the abutment portion.

[0012] According to the above-described breathing circuit connector, the bushing includes a first semicircular bushing and a second semicircular bushing. The first semicircular bushing is provided with a positioning post, and the second semicircular bushing is provided with a positioning hole. The positioning post is inserted into the positioning hole to connect the first semicircular bushing and the second semicircular bushing.

[0013] The beneficial effects of the breathing circuit connector provided by this utility model are at least as follows: The breathing circuit connector provided by this utility model has a hard plastic reinforcing member connected to the breathing tube through its connecting part, and a fastening and sealing component is provided at the connection between the breathing tube and the connecting part to ensure the sealing and tightness of the connection. The reinforcing part of the hard plastic reinforcing member is placed inside the soft plastic outer part, and the soft plastic outer part is injection molded together with the reinforcing part through an injection molding process. This not only makes the structure more robust, but also improves the clamping force of the soft plastic connector, thereby increasing the tensile strength after the breathing circuit connector is connected to the medical device, preventing loosening and improving the safety of using the medical device. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0015] Figure 1A three-dimensional structural schematic diagram of the breathing circuit connector provided by this utility model; Figure 2 A cross-sectional structural schematic diagram of the breathing circuit connector provided by this utility model; Figure 3 An exploded structural diagram of the breathing circuit connector provided by this utility model; Figure 4 This is a structural schematic diagram of the soft rubber exterior part provided by this utility model.

[0016] The following are the labeling elements in the figure: 100. Breathing circuit connector; 10. Breathing tube; 11. Threaded post; 12. Heating wire; 20. Hard rubber reinforcement; 21. Connecting part; 22. Abutting part; 221. Limiting part; 23. Reinforcing part; 231. First groove; 232. First protrusion; 233. Step; 234. Notch; 30. Fastening and sealing assembly; 31. Soft rubber sleeve; 32. Bushing; 321. Threaded post groove; 322. First semi-circular bushing; 323. Second semi-circular bushing; 324. Guide part; 33. Locking sleeve; 331. Support part; 40. Soft rubber outer part; 41. Second protrusion; 42. Second groove; 43. Anti-slip part. Detailed Implementation

[0017] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0018] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it may be directly or indirectly located on that other component. When a component is referred to as "connected to" another component, it may be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientations or positions based on the accompanying drawings, and are for ease of description only, and should not be construed as limiting the technical solution. 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 technical features. "A plurality" means two or more, unless otherwise explicitly defined.

[0019] Please see Figure 1 This embodiment provides a breathing circuit connector 100, including a breathing tube 10, a hard plastic reinforcing member 20, a fastening and sealing assembly 30, and a soft plastic outer part 40.

[0020] Please see Figure 2 The rigid rubber reinforcement 20 is disposed at the end of the breathing tube 10. The rigid rubber reinforcement 20 includes a connecting part 21, an abutting part 22, and a reinforcing part 23 that are fixedly connected in sequence. The connecting part 21 is disposed inside the breathing tube 10 and connected to the breathing tube 10. The fastening and sealing assembly 30 surrounds the connection between the breathing tube 10 and the connecting part 21 and fastens and seals the connection. The end of the fastening and sealing assembly 30 abuts against the abutting part 22. The soft rubber outer part 40 is injection molded to cover the reinforcing part 23. The soft rubber outer part 40 and the reinforcing part 23 are injection molded together.

[0021] The working principle and beneficial effects of the breathing circuit connector 100 provided in this embodiment are as follows: The breathing circuit connector 100 provided in this embodiment has a rigid rubber reinforcing member 20 connected to the breathing tube 10 via its connecting portion 21. A fastening and sealing component 30 is provided at the connection between the breathing tube 10 and the connecting portion 21 to ensure the sealing and fastening of the connection. The reinforcing portion 23 of the rigid rubber reinforcing member 20 is placed inside the soft rubber outer part 40. The soft rubber outer part 40 is injection molded with the reinforcing portion 23 through an injection molding process. This not only makes the structure sturdy but also improves the clamping force of the soft rubber connector, thereby increasing the tensile strength after the breathing circuit connector 100 is connected to the medical device. This prevents loosening and improves the safety of using the medical device.

[0022] In one embodiment, see Figures 2 to 4 The reinforcing part 23 is a hollow cylinder 23a. The bottom of the outer wall of the hollow cylinder 23a is provided with a plurality of first grooves 231, and a corresponding first protrusion 232 is formed between two adjacent first grooves 231. The inner wall of the soft rubber outer part 40 is provided with a second protrusion 41 corresponding to the first groove 231, and a second groove 42 corresponding to the first protrusion 232 is formed between two adjacent second protrusions 41.

[0023] Since the hollow cylinder 23a is provided with a first groove 231 and a first protrusion 232, when the soft rubber outer part 40 is injection molded onto the reinforcing part 23 through an injection molding process, a second protrusion 41 corresponding to the first groove 231 and a second groove 42 corresponding to the first protrusion 232 are formed on the soft rubber outer part 40, thereby making the soft rubber outer part 40 stably and tightly engaged with the reinforcing part 23 of the hard rubber reinforcing part 20, making the connection structure more robust.

[0024] Optionally, the number of the first groove 231, the first protrusion 232, the second protrusion 41, and the second groove 42 is 2 to 20. Optionally, the number of the first groove 231, the first protrusion 232, the second protrusion 41, and the second groove 42 is 10. It should be understood that the number of the first groove 231, the first protrusion 232, the second protrusion 41, and the second groove 42 is not limited to the above-mentioned cases, and other cases are also possible, which are not limited here.

[0025] In one embodiment, see Figure 2 and Figure 3 The hollow cylinder 23a has a step 233 at the bottom of its inner wall. The step 233 is designed to facilitate the injection molding of the soft rubber outer part 40 at this point.

[0026] In one embodiment, see Figure 3 The hollow cylinder 23a has two notches 234 at the end away from the connecting part 21, and the two notches 234 correspond to the positions of the anti-slip parts 43 on both sides of the soft rubber outer part 40, preserving the soft feel when gripping the soft rubber joint. It should be understood that the number of notches 234 provided on the hollow cylinder 23a is not limited to the above situation, and can also be other situations, which are not limited here.

[0027] In one embodiment, the depth of the notch 234 is 3 / 4 of the depth of the hollow cylinder 23a, which makes the soft rubber outer part 40 and the reinforcing part 23 more firmly bonded during injection molding. Optionally, the depth of the notch 234 is 1 / 3 of the depth of the hollow cylinder 23a. It should be understood that the ratio of the depth of the notch 234 to the depth of the hollow cylinder 23a is not limited to the above-described case, and other cases are possible, which are not limited here.

[0028] In one embodiment, see Figure 4 The soft rubber outer part 40 is further provided with at least one anti-slip part 43 on its exterior. The anti-slip part 43 increases the friction for gripping the breathing circuit connector 100. Optionally, the soft rubber outer part 40 is provided with two anti-slip parts 43 on its exterior, which facilitates a better grip on the breathing circuit connector 100.

[0029] In one embodiment, see Figure 1 The outer wall of the breathing tube 10 is provided with a threaded post 11, and a heating wire 12 is provided inside the threaded post 11.

[0030] Please see Figure 2 and Figure 3The fastening and sealing assembly 30 includes a soft rubber sleeve 31, a bushing 32, and a locking sleeve 33. The soft rubber sleeve 31 is made of soft rubber, and its shape conforms to the shape of the breathing tube 10 after being fitted onto it. The inner wall of the bushing 32 has a threaded groove 321, and the bushing 32 is fitted onto the outer wall of the soft rubber sleeve 31. The threaded groove 321 covers the outside of the soft rubber sleeve 31 and compresses it. The locking sleeve 33 is fitted onto the outer wall of the bushing 32, and its top end is ultrasonically welded to the abutment portion 22.

[0031] After the soft rubber sleeve 31 is fitted onto the outer wall of the breathing tube 10, the shape of the soft rubber sleeve 31 deforms according to the shape of the breathing tube 10. Then, the bushing 32 is fitted onto the outside of the soft rubber sleeve 31 and the soft rubber sleeve 31 is squeezed to achieve a tight seal and secure the connection between the connecting part 21 and the breathing tube 10. Then, the locking sleeve 33 is fitted onto the outside of the bushing 32, and the top of the locking sleeve 33 abuts against the abutment part 22 and is ultrasonically welded to further ensure the tightness and sealing of the connection between the connecting part 21 and the breathing tube 10.

[0032] Optionally, the edge of the abutment portion 22 is provided with a downwardly bent limiting portion 221, which is used to limit the lock sleeve 33 within the limiting portion 221.

[0033] Optionally, the bottom of the bushing 32 is provided with a guide 324, through which the locking sleeve 33 is quickly guided to the outer wall of the bushing 32.

[0034] Optionally, the bottom of the locking sleeve 33 is provided with an inwardly buckling support portion 331 for supporting the bushing 32.

[0035] In one embodiment, see Figure 3 The bushing 32 includes a first semicircular bushing 322 and a second semicircular bushing 323. The first semicircular bushing 322 is provided with a positioning post (not shown in the figure, the same below), and the second semicircular bushing 323 is provided with a positioning hole (not shown in the figure, the same below). The positioning post is inserted into the positioning hole to connect the first semicircular bushing 322 and the second semicircular bushing 323. The use of the first semicircular bushing 322 and the second semicircular bushing 323 makes the assembly of the bushing 32 more convenient and flexible. Furthermore, the cooperation of the positioning post and the positioning hole ensures a stable connection structure and makes disassembly very convenient and quick.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A breathing circuit connector, characterized in that, include: breathing tube; A rigid plastic reinforcing member is provided at the end of the breathing tube. The rigid plastic reinforcing member includes a connecting part, an abutting part, and a reinforcing part that are fixedly connected in sequence. The connecting part is located inside the breathing tube and is connected to the breathing tube. A fastening and sealing assembly is provided around the connection between the breathing tube and the connecting part and to fasten and seal the connection. The end of the fastening and sealing assembly abuts against the abutting part. A soft rubber outer part, wherein the soft rubber outer part is injection molded to cover the reinforcing part, and the soft rubber outer part and the reinforcing part are injection molded together.

2. The breathing circuit connector according to claim 1, characterized in that, The reinforcing part is a hollow cylinder, and the bottom of the outer wall of the hollow cylinder is provided with a plurality of first grooves, and a corresponding first protrusion is formed between two adjacent first grooves. The inner wall of the soft rubber outer part has a second protrusion corresponding to the first groove, and a second groove corresponding to the first protrusion is formed between two adjacent second protrusions.

3. The breathing circuit connector according to claim 2, characterized in that, The hollow cylinder has a step at the bottom of its inner wall.

4. The breathing circuit connector according to claim 2 or 3, characterized in that, The hollow cylinder has at least one notch at the end away from the connecting part.

5. The breathing circuit connector according to claim 4, characterized in that, The depth of the notch is 3 / 4 of the depth of the hollow cylinder.

6. The breathing circuit connector according to claim 1, characterized in that, The exterior of the soft rubber exterior part is also provided with at least one anti-slip part.

7. The breathing circuit connector according to claim 1, characterized in that, The outer wall of the breathing tube is provided with a threaded post, and a heating wire is provided inside the threaded post; The fastening and sealing assembly includes: A soft rubber sleeve is fitted onto the breathing tube, and the shape of the soft rubber sleeve is deformed according to the shape of the breathing tube. A bushing, the inner wall of which is provided with a threaded groove, is fitted onto the outer wall of the soft rubber sleeve, and the threaded groove covers the outside of the soft rubber sleeve and compresses the soft rubber sleeve.

8. The breathing circuit connector according to claim 7, characterized in that, The fastening and sealing assembly also includes a locking sleeve, which is fitted onto the outer wall of the bushing, and the top end of the locking sleeve is ultrasonically welded to the abutment portion.

9. The breathing circuit connector according to claim 7, characterized in that, The bushing includes a first semicircular bushing and a second semicircular bushing. The first semicircular bushing is provided with a positioning post, and the second semicircular bushing is provided with a positioning hole. The positioning post is inserted into the positioning hole to connect the first semicircular bushing and the second semicircular bushing.

Images