A back-suction-proof breathing hose for first aid
By introducing anti-backflow components into the emergency breathing hose, including the main pipe, breathing valve, and waste liquid cartridge, the problem of secretion backflow is solved, achieving effective anti-backflow and anti-recirculation functions, improving the effectiveness of use and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG GUANGHUA MEDICAL HOSE TECHNOLOGY CO LTD
- Filing Date
- 2025-04-09
- Publication Date
- 2026-06-12
AI Technical Summary
When using existing emergency breathing tubing, secretions from the patient's mouth and airway or condensation can easily flow back into the breathing tubing, resulting in poor anti-backflow and anti-respiratory effects.
An emergency breathing hose including a breathing hose and an anti-backflow component has been designed. The anti-backflow component includes a main pipe, a breathing valve, an anti-backflow valve, and a waste liquid container. The main pipe is threadedly connected to the breathing hose to prevent secretions from flowing back and to collect condensate.
It effectively prevents the backflow of outside air or secretions, improves the performance of the breathing hose, facilitates disassembly and cleaning, and reduces usage costs.
Smart Images
Figure CN224345254U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, and in particular relates to a breathing hose for emergency use that prevents backflow. Background Technology
[0002] Emergency breathing tubing is used for artificial ventilation (such as BVM, ventilator). It is mainly made of medical-grade silicone or TPU material, which is flexible and resistant to bending. Some tubing has built-in spiral steel wire to prevent collapse.
[0003] When using emergency breathing tubing, both ends of the tubing need to be connected to the ventilator and breathing mask respectively. However, existing emergency breathing tubing can cause secretions or condensation from the patient's mouth and airway to flow back into the breathing tubing. Emergency breathing tubing is not effective in preventing backflow. Therefore, based on actual usage, we have improved the above-mentioned existing technology. Utility Model Content
[0004] This invention overcomes the shortcomings of the prior art by providing a breathing hose for emergency use that prevents backflow, thus solving the problems existing in the prior art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A breathing hose for emergency use with backflow prevention includes a breathing hose one and a breathing hose two, with a backflow prevention component provided between the breathing hose one and the breathing hose two.
[0007] The anti-backflow component includes a main pipe that is threadedly connected to breathing hose one and breathing hose two. The main pipe is equipped with a breathing valve and an anti-backflow valve, and a waste liquid cylinder is also installed on the main pipe.
[0008] In a preferred embodiment of this utility model, a return pipe is connected to the main pipe, and a threaded pipe is installed on the waste liquid cylinder, with the threaded pipe being threadedly connected to the return pipe.
[0009] In a preferred embodiment of this utility model, a connecting sleeve is provided at one end of the main tube near the second breathing hose, and an external thread section is provided on the outer wall of the connecting sleeve near the main tube, and the external thread section is threadedly connected to the inner wall of the right side of the main tube.
[0010] In a preferred embodiment of this utility model, the inner wall of the connecting sleeve near one end of the second breathing hose is provided with an internal thread section, and the internal thread section is threadedly connected to the inner wall of the second breathing hose.
[0011] In a preferred embodiment of the present invention, the inner wall of the main tube near the end of the breathing hose is provided with a threaded inner wall, and the threaded inner wall is threadedly connected to the breathing hose.
[0012] In a preferred embodiment of this utility model, both breathing hose one and breathing hose two are provided with connectors, and the connectors on both sides are respectively connected to the ventilator and the breathing mask.
[0013] This utility model solves the defects existing in the background technology, and has the following beneficial effects:
[0014] The breathing valve on the anti-backflow component of this utility model allows the patient's exhaled air to escape, but prevents the backflow of outside air or secretions. The anti-backflow valve prevents secretions or condensate from flowing back into the breathing tubing from the patient's mouth and airway. The emergency breathing hose has anti-backflow and anti-reverse flow functions. The waste liquid container can collect condensate or secretions flowing back into the breathing hose, improving the effectiveness of the emergency breathing hose. Furthermore, the anti-backflow component is threadedly connected to the breathing hose, making it easy to disassemble and replace. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0016] Figure 1 This is a schematic diagram of the structure of a preferred embodiment of the present invention;
[0017] Figure 2 This is a schematic diagram of the anti-backflow component structure of a preferred embodiment of the present invention;
[0018] Figure 3 This is a schematic diagram of the other side of the anti-backflow component of a preferred embodiment of the present invention.
[0019] In the diagram: 10. Anti-backflow component; 100. Main pipe; 101. Breathing valve; 102. Anti-backflow valve; 103. Return pipe; 104. Waste liquid cylinder; 105. Threaded pipe; 106. Connecting sleeve; 107. External thread section; 108. Internal thread section; 109. Threaded inner wall; 20. Breathing hose one; 30. Breathing hose two. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.
[0021] Example:
[0022] Please refer to Figure 1-3This embodiment of the present invention provides a breathing hose for emergency use that prevents backflow, including a breathing hose 20 and a breathing hose 30, with an anti-backflow component 10 provided between the breathing hose 20 and the breathing hose 30; both the breathing hose 20 and the breathing hose 30 are breathing hoses for emergency use, and during use, the two ends of the breathing hose 20 and the breathing hose 30 are respectively connected to a ventilator and a breathing mask;
[0023] The anti-backflow component 10 includes a main pipe 100 threadedly connected to breathing hose 20 and breathing hose 30. A breathing valve 101 and an anti-backflow valve 102 are installed on the main pipe 100, and a waste liquid container 104 is also installed on the main pipe 100. The breathing valve 101 allows the patient's exhaled air to escape but prevents the backflow of outside air or secretions. The anti-backflow valve 102 prevents secretions or condensate from flowing back into the breathing tubing from the patient's mouth or airway. The emergency breathing hose has anti-backflow and anti-reflow functions. The waste liquid container 104 collects condensate or secretions flowing back into the breathing hose, improving the effectiveness of the emergency breathing hose. The anti-backflow component 10 is threadedly connected to breathing hose 20 and breathing hose 30, allowing for easy disassembly and replacement. After disassembly, the anti-backflow component 10 can be cleaned and disinfected, and can be reused repeatedly, reducing operating costs.
[0024] A return pipe 103 is connected to the main pipe 100, and a threaded pipe 105 is installed on the waste liquid cylinder 104, and the threaded pipe 105 is threadedly connected to the return pipe 103. The return pipe 103 is connected to the main pipe 100, and the threaded pipe 105 is fixedly connected to the waste liquid cylinder 104. The waste liquid cylinder 104 is easily removed from the main pipe 100, which facilitates the treatment of the waste liquid by the return flow.
[0025] The main tube 100 is provided with a connecting sleeve 106 at one end near the second breathing hose 30. The outer wall of the connecting sleeve 106 near the main tube 100 is provided with an external thread section 107, and the external thread section 107 is threadedly connected to the inner wall of the right side of the main tube 100. The external thread section 107 of the connecting sleeve 106 can rotate on the inner wall of the main tube 100.
[0026] The inner wall of the connecting sleeve 106 near the end of the second breathing hose 30 is provided with an internal thread section 108, and the internal thread section 108 is threadedly connected to the inner wall of the second breathing hose 30. During the rotation of the connecting sleeve 106, the internal thread section 108 on the inner wall of the connecting sleeve 105 can be threadedly connected to the threaded section on the second breathing hose 30, so that the connecting sleeve 106 can be easily connected to or disconnected from the second breathing hose 30.
[0027] The inner wall of the main pipe 100 near the end of the breathing hose 20 is provided with a threaded inner wall 109, and the threaded inner wall 109 is threadedly connected to the breathing hose 20; through the threaded connection between the threaded inner wall 109 and the breathing hose 20, the anti-backflow component 10 and the breathing hose 20 can be quickly disassembled and assembled.
[0028] Both breathing hose 20 and breathing hose 30 are equipped with connectors, and the connectors on both sides are connected to the ventilator and breathing mask, respectively.
[0029] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A breathing hose for emergency use to prevent backflow, comprising a first breathing hose (20) and a second breathing hose (30), characterized in that, A backflow prevention component (10) is provided between the first breathing hose (20) and the second breathing hose (30); The anti-backflow component (10) includes a main pipe (100) threadedly connected to breathing hose one (20) and breathing hose two (30). A breathing valve (101) and an anti-backflow valve (102) are installed on the main pipe (100), and a waste liquid cylinder (104) is also installed on the main pipe (100).
2. The emergency breathing hose for preventing backflow as described in claim 1, characterized in that, The main pipe (100) is connected to a return pipe (103), and the waste liquid cylinder (104) is equipped with a threaded pipe (105), and the threaded pipe (105) is threadedly connected to the return pipe (103).
3. The emergency breathing hose for preventing backflow as described in claim 1, characterized in that, The main tube (100) is provided with a connecting sleeve (106) at one end near the second breathing hose (30). The outer wall of the connecting sleeve (106) near the main tube (100) is provided with an external thread section (107), and the external thread section (107) is threadedly connected to the inner wall of the right side of the main tube (100).
4. The emergency breathing hose for preventing backflow as described in claim 3, characterized in that, The inner wall of the connecting sleeve (106) near the end of the second breathing hose (30) is provided with an internal thread section (108), and the internal thread section (108) is threadedly connected to the inner wall of the second breathing hose (30).
5. The emergency breathing hose for preventing backflow as described in claim 1, characterized in that, The inner wall of the main tube (100) near the end of the breathing hose (20) is provided with a threaded inner wall (109), and the threaded inner wall (109) is threadedly connected to the breathing hose (20).
6. The emergency breathing hose for preventing backflow as described in claim 1, characterized in that, Both the first breathing hose (20) and the second breathing hose (30) are equipped with connectors, and the connectors on both sides are connected to the ventilator and the breathing mask, respectively.