Airway secretion removing device for ICU department

Abstract

The invention relates to the technical field of airway cleaning, in particular to an airway secretion removing device for an ICU department, which comprises a mounting table and an interlayer air bag, the interlayer air bag is designed in a water drop shape, a resonant cavity is arranged in the interlayer air bag, an air inlet pipe is arranged in the resonant cavity, the bottom end of the air inlet pipe is connected with a multi-pass device, and the multi-pass device is connected with an air inlet pipe. A multi-pass device is arranged in the resonant cavity, a plurality of air injection pipes are connected to the periphery of the multi-pass device, a one-way valve is arranged in the output end of the bottom end of the multi-pass device, an air inlet valve is installed in the bottom wall of the resonant cavity and located under the multi-pass device, a conduction rod is installed at the top end of the air inlet valve, and the conduction rod corresponds to the one-way valve in position. Through the design of directly reaching the bottom, vibrating stripping, line scraping assisting and double suction, the sputum removal efficiency and thoroughness are remarkably improved, operation is easy and time-saving, the workload of medical staff is reduced, meanwhile, patient experience is comfortable, safety is high, and the sputum removal device is suitable for clinical application and popularization.

Description

Technical Field

[0001] This invention relates to the field of airway clearance technology, and more particularly to an airway secretion removal device for use in ICU departments. Background Technology

[0002] In current medical procedures, clearing sputum from a patient's airway primarily relies on endotracheal intubation combined with a suction catheter. Medical staff typically need to use a laryngoscopy to observe the lower respiratory tract and gradually insert the suction catheter into the trachea or bronchi for cleaning. Because the lower respiratory tract has bifurcated bronchi, the direction and position of the suction catheter often need to be repeatedly adjusted to align with each bronchi for suctioning. This method is cumbersome, time-consuming, requires full manual operation by medical staff, is physically demanding, and causes significant discomfort for the patient during suctioning, easily leading to choking and even damage to the respiratory mucosa. Overall, the efficiency and patient experience are unsatisfactory.

[0003] On the other hand, traditional suction catheters generally rely on a single negative pressure suction to remove sputum. When the sputum is thick or adheres tightly to the tracheal wall, insufficient suction can easily occur, resulting in incomplete sputum removal and increasing the risk of airway obstruction and infection. While some improved devices attempt to add airflow or vibration functions, their complex structures and cumbersome operation procedures fail to balance suction efficiency and patient comfort, and they still suffer from drawbacks such as incomplete cleaning, excessive time consumption, and limited applicability. Therefore, there is still significant room for improvement in the clinical application of existing technologies. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned shortcomings in the prior art by providing an airway secretion removal device for use in ICU departments.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An airway secretion clearance device for ICU use includes a mounting platform and a sandwich airbag. The sandwich airbag is located on one side of the mounting platform and has a teardrop shape. A protective cover is detachably installed on the top of the sandwich airbag. A resonant cavity is provided inside the sandwich airbag, and an air inlet pipe is installed inside the resonant cavity. A multi-port valve is connected to the bottom end of the air inlet pipe, and multiple air jet tubes are connected around the multi-port valve. A one-way valve is provided in the output end at the bottom end of the multi-port valve. An air inlet valve is installed in the bottom wall of the resonant cavity. The air inlet valve is located directly below the multi-port valve, and a guide rod is installed on the top of the air inlet valve. The guide rod corresponds to the position of the one-way valve. Multiple suction tubes are provided between the resonant cavity and the interlayer of the airbag. The top end of the suction tube is connected to an interface installed at the top of the airbag. The bottom end of the suction tube penetrates the bottom wall of the airbag and is located on the outside of the airbag. Multiple neck openings are provided between the bottom of the suction tube and the resonant cavity.

[0006] The mounting platform is equipped with a suction mechanism and a jet mechanism. The suction mechanism is connected to the interface, and the jet mechanism is connected to the air intake pipe.

[0007] Preferably, a sealing plug is provided between the top of the resonant cavity and the air intake pipe, the sealing plug being used to enhance the sealing effect between the air intake pipe and the resonant cavity.

[0008] Preferably, the jet pipe has a certain arc and is curved upwards, so that the oxygen ejected from the jet pipe can move upwards along the inner wall of the resonant cavity.

[0009] Preferably, the bottom end of the suction tube is designed to be bent outwards to fit a bifurcated bronchus.

[0010] Preferably, a side suction tube is connected above the suction tube, and the end of the side suction tube away from the suction tube penetrates the side wall of the interlayer airbag and is located outside the interlayer airbag.

[0011] Preferably, the outer surface of the interlayer airbag at its widest point is provided with scratching grooves, which are located below the side suction tube.

[0012] Preferably, the jet mechanism includes a jet device installed inside the mounting platform, the output end of the jet device is connected to a duct, the end of the duct away from the jet device is connected to a connecting pipe, and the top end of the air inlet pipe is connected to the connecting pipe on the jet device.

[0013] Preferably, the suction mechanism includes a suction device installed inside the mounting platform, the input end of the suction device is connected to another catheter, the end of the catheter away from the suction device is connected to another connecting tube, and the end of the interface away from the suction tube is connected to the connecting tube on the suction device.

[0014] Preferably, a liquid storage tank is also installed inside the mounting platform, a liquid guide pipe is connected between the output end of the suction device and the input end of the liquid storage tank, and a drain pipe is connected to the output end of the liquid storage tank.

[0015] Preferably, an adjustment device is also installed on the inner side of the mounting platform. The adjustment device is used to adjust the height of the suction device and the jet device to facilitate their assembly and disassembly.

[0016] Compared with the prior art, the advantages of the present invention are as follows: 1. This application utilizes the small diameter and easy insertion characteristics of the sandwiched airbag, which can be directly inserted into the bottom of the lower respiratory tract. The curved suction tube at the bottom can be aligned with both left and right bronchi at the same time, avoiding the problem of repeatedly moving the tube and adjusting the direction required by traditional suctioning. This design reduces the operation steps, shortens the time required for suctioning, reduces the labor intensity of medical staff, and also improves the comfort and safety of patients during the operation.

[0017] 2. After the jet device of this application is started, the high-speed oxygen entering the resonant cavity serves as both a power source for high-frequency vibration and a Bernoulli effect when ejected, generating auxiliary suction at the bottom of the suction tube. This combination of airflow and suction device not only improves suction efficiency but also allows sputum in the bronchi and trachea to be suctioned out more fully, avoiding sputum residue due to insufficient suction, thus improving the thoroughness of airway clearance and the safety of operation.

[0018] 3. The high-frequency vibration generated by the resonant cavity of this application is transmitted to the interlayer airbag, causing it to vibrate during movement. The scraping texture on the side wall of the airbag can effectively scrape off the sputum attached to the inner wall of the trachea under the combined action of vibration and displacement, loosening the sputum from its fixed state. At the same time, the scraped sputum is quickly sucked away by the side suction tube to avoid blockage or secondary pollution. This composite cleaning method of "vibration + scraping + suction" greatly improves the speed and efficiency of sputum removal.

[0019] 4. The teardrop-shaped design of the interlayer airbag in this application forms a working structure that combines wide and narrow sections. The wide section is designed to facilitate the scraping of sputum, while the narrow section is designed to facilitate the accumulation of sputum and guide it to the side suction tube, ensuring that sputum can be collected in a timely manner. As the interlayer airbag slowly moves upward, the sputum remaining on the bronchial and tracheal inner walls can be suctioned out and finally enters the storage tank through the pipeline for storage and sterilization. This structural design not only avoids sputum retention but also ensures the convenience of subsequent discharge and storage.

[0020] In summary, this application, through its design of reaching the bottom, vibration dissection, scraping assistance, and dual suction, significantly improves the efficiency and thoroughness of sputum clearance. It is simple and time-saving to operate, reduces the workload of medical staff, and provides a comfortable and safe experience for patients, making it suitable for clinical application. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an airway secretion removal device for ICU departments proposed in this invention.

[0022] Figure 2 This is a schematic diagram of the suction device and jet device of an airway secretion removal device for ICU departments proposed in this invention.

[0023] Figure 3This is a schematic diagram of the drainage tube and catheter structure of an airway secretion removal device for ICU departments proposed in this invention.

[0024] Figure 4 This is a schematic diagram of the sandwiched airbag and scraping texture structure of an airway secretion removal device for ICU departments proposed in this invention.

[0025] Figure 5 This is a schematic diagram of the air inlet pipe and sealing plug of an airway secretion removal device for ICU departments proposed in this invention.

[0026] Figure 6 This is a half-section diagram of the sandwiched airbag and resonant cavity structure of an airway secretion clearance device for ICU departments proposed in this invention.

[0027] Figure 7 for Figure 6 Enlarged view of the structure at point A in the middle.

[0028] In the diagram: 1. Mounting platform, 2. Liquid storage tank, 3. Suction device, 4. Jet device, 5. Adjustment device, 6. Drain pipe, 7. Guide pipe, 8. Conduit, 9. Connecting pipe, 10. Protective cover, 11. Layered airbag, 12. Scratching groove, 13. Side suction pipe, 14. Interface, 15. Air inlet pipe, 16. Sealing plug, 17. Suction tube, 18. Neck opening, 19. Resonant cavity, 20. Multi-channel device, 21. Jet pipe, 22. One-way valve, 23. Conductor rod, 24. Air inlet valve. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] Reference Figures 1 to 7 An airway secretion clearance device for ICU use includes a mounting platform 1. A reservoir 2, a suction device 3, and a jet device 4 are mounted inside the mounting platform 1. The input end of the suction device 3 and the output end of the jet device 4 are both connected to conduits 8. A connecting pipe 9 is connected to the end of the conduit 8 furthest from the suction device 3 and the jet device 4. A guide pipe 7 connects the output end of the suction device 3 to the input end of the reservoir 2. A drain pipe 6 connects the output end of the reservoir 2. An adjustment device 5 is also mounted inside the mounting platform 1. The adjustment device 5 is prior art, and its specific structural design will not be described in detail here. The adjustment device 5 is used to adjust the height of the suction device 3 and the jet device 4, facilitating their assembly and disassembly.

[0031] A sandwich airbag 11 is provided on one side of the mounting platform 1. The sandwich airbag 11 is designed in a teardrop shape. A protective cover 10 is detachably installed on the top of the sandwich airbag 11. A resonant cavity 19 is provided inside the sandwich airbag 11. An air inlet pipe 15 is installed inside the resonant cavity 19. A sealing plug 16 is provided between the top of the resonant cavity 19 and the air inlet pipe 15. The sealing plug 16 is used to enhance the sealing effect between the air inlet pipe 15 and the resonant cavity 19. The top of the air inlet pipe 15 is connected to the connecting pipe 9 on the jet device 4. A multi-way connector 20 is connected to the bottom of the air inlet pipe 15. Multiple jet pipes 21 are connected around the multi-way connector 20. The jet pipes 21 are curved and bend upward, so that the jet pipes 21 can be used to release air from the jet pipes 21. The ejected oxygen can move upward along the inner wall of the resonant cavity 19. A one-way valve 22 is provided in the output end of the bottom of the multi-port valve 20. An air intake valve 24 is installed in the bottom wall of the resonant cavity 19. The air intake valve 24 is located directly below the multi-port valve 20, and a guide rod 23 is installed at the top of the air intake valve 24. The guide rod 23 corresponds to the position of the one-way valve 22. In the initial state, the guide rod 23 is inserted into the output end of the bottom of the multi-port valve 20, so that the one-way valve 22 is pushed open. Since multiple through holes are evenly arranged on the guide rod 23, the oxygen in the air intake pipe 15 enters the interlayer between the resonant cavity 19 and the interlayer airbag 11 through the air intake valve 24, so that the interlayer airbag 11 gradually expands.

[0032] Multiple suction tubes 17 are provided between the resonant cavity 19 and the interlayer airbag 11. The top end of the suction tube 17 is connected to the interface 14 installed at the top of the interlayer airbag 11. The end of the interface 14 away from the suction tube 17 is connected to the connecting tube 9 on the suction device 3. The bottom end of the suction tube 17 penetrates the bottom wall of the interlayer airbag 11 and is located on the outside of the interlayer airbag 11. The bottom end of the suction tube 17 is designed to be bent outward to adapt to the bifurcated bronchus, so that the suction tube 17 can be better inserted into the bronchus.

[0033] Multiple neck openings 18 are provided between the lower part of the suction tube 17 and the resonant cavity 19. Under the action of the neck openings 18, high-speed oxygen inside the resonant cavity 19 can be ejected from the neck openings 18 and then enter the suction tube 17. A side suction tube 13 is connected above the suction tube 17. The end of the side suction tube 13 away from the suction tube 17 penetrates the side wall of the interlayer airbag 11 and is located on the outside of the interlayer airbag 11. The outer surface of the interlayer airbag 11 at the widest point of its diameter is provided with scraping grooves 12, which are located below the side suction tube 13.

[0034] When using this invention, the interlayer airbag 11 is inserted into the patient's trachea. At this time, the interlayer airbag 11 is not inflated, so the diameter of the interlayer airbag 11 is small, which allows it to move freely and conveniently in the patient's trachea. Normally, when patients need to have sputum suctioned, they need to slowly observe where there is sputum through a laryngoscope from the lower respiratory tract before suctioning. The lower respiratory tract has two bronchi that branch to the left and right, so the endotracheal tube needs to be moved to align with the bronchi before suctioning. The entire sputum suctioning process has to go from the lower respiratory tract to the upper respiratory tract and finally remove the endotracheal tube. It takes a lot of time and requires medical staff to operate continuously, which is time-consuming and uncomfortable for the patient.

[0035] This device allows the interlayer airbag 11 to be placed at the bottom of the lower respiratory tract first. The bottom end of the suction tube 17 extending from the bottom of the interlayer airbag 11 has a specific curved design. As long as the interlayer airbag 11 reaches the bottom of the lower respiratory tract, it can be directly aligned with the two bifurcated bronchi, greatly reducing the operation time.

[0036] After confirming alignment with the bronchus, the jet device 4 is activated. Oxygen enters the multi-portal device 20 through the tubing 8, connecting tube 9, and inlet tube 15. Initially, the guide rod 23 in the middle of the inlet valve 24 passes directly through and opens the one-way valve 22 at the bottom of the multi-portal device 20. At this time, all the oxygen enters the interlayer of the interlayer airbag 11 through the open inlet valve 24 at the bottom, causing the diameter of the interlayer airbag 11 to gradually increase. As a result, the inside of the interlayer airbag 11 slowly adheres to the inner wall of the trachea. After observing that the interlayer airbag 11 is properly adhered to the inner wall of the trachea, the inlet tube 15 is pulled through the connecting tube 9 to move the multi-portal device 20 upward. This causes the guide rod 23 to be pulled out from inside the one-way valve 22. At this time, the oxygen can only be ejected from the jet tubes 21 around the perimeter. The jet tubes 21 have a certain curvature, which allows the ejected high-speed oxygen to move upward along the inner wall of the resonant cavity 19. As the high-speed oxygen is injected into the resonant cavity and ejected from the neck opening 18, it enters the suction tube 17.

[0037] When a high-speed airflow passes through the neck 18, vortices are generated and detached. These vortices form and detach periodically at the neck 18, causing periodic pressure disturbances to the air inside the cavity. The frequency of this vortex detachment is close to the natural frequency of the resonant cavity 19, resulting in frequency locking. At this time, the sound waves generated inside the cavity will in turn affect the vortex detachment process, forming a strong positive feedback loop, which causes the vibration amplitude to increase sharply. At this point, the resonant cavity 19 begins to generate high-frequency vibrations.

[0038] While all this is happening, the suction device 3 is also working. The suction generated by the suction device 3 passes through the corresponding tubing 8, connecting tube 9, and interface 14, and finally acts on the suction tube 17 and the side suction tube 13. By pulling the connecting tube 9 upward, the interlayer airbag 11 moves upward along the trachea. This design has the following advantages.

[0039] First: The high-speed oxygen injected into the air inlet tube 15 can not only serve as the power source for the high-frequency vibration of the resonant cavity 19, but also generate the Bernoulli effect when it is injected from the neck opening 18 into the suction tube 17, generating an attraction at the bottom of the suction tube 17, and the auxiliary suction device 3 suctions the bronchus through the bottom of the suction tube 17. Second: The high-frequency vibration generated by the resonant cavity 19 causes the entire interlayer airbag 11 to vibrate as well. The widest sidewall of the interlayer airbag 11 is provided with scraping grooves 12. As the interlayer airbag 11 moves upward, it not only vibrates at high frequency, causing the sputum on the inner wall of the trachea to loosen, but also scrapes the sputum off with the scraping grooves 12, greatly improving the sputum collection speed. Third: The teardrop-shaped design of the interlayer airbag 11 allows the wider part to scrape away sputum with the scraping groove 12 as it moves upward, while the narrower part allows sputum to accumulate above the scraping groove 12. The side suction tube 13 is located just above the scraping groove 12 to suction the sputum, forming a combination that greatly improves the efficiency of sputum clearance. Fourth: After the bronchus is suctioned, the bottom end of the suction tube 17 leaves the bronchus as the dissecting air bag 11 rises, but still maintains suction. If there is any residue on the inner wall of the trachea, it will also be suctioned.

[0040] The entire suction process takes little time. With this design, you only need to pull the inflated interlayer airbag 11 out from the bottom of the lower respiratory tract at an appropriate speed to directly and completely aspirate the sputum from the bronchial and respiratory tract walls in one go. It takes little time, is simple to operate, and provides a comfortable experience for the patient.

[0041] The suctioned sputum enters the suction device 3 through the corresponding connecting tube 9 and catheter 8, and then enters the storage tank 2 through the liquid guide tube 7 for temporary storage. After simple sterilization inside, it can be stored or discharged through the drain tube 6.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An airway secretion clearance device for ICU use, comprising a mounting platform (1) and a sandwich airbag (11), wherein the sandwich airbag (11) is located on one side of the mounting platform (1), characterized in that, The sandwich airbag (11) is designed in the shape of a water droplet. A protective cover (10) is detachably installed on the top of the sandwich airbag (11). A resonant cavity (19) is provided inside the sandwich airbag (11). An air inlet pipe (15) is installed inside the resonant cavity (19). A multi-port valve (20) is connected to the bottom end of the air inlet pipe (15). Multiple jet pipes (21) are connected around the multi-port valve (20). A one-way valve (22) is provided in the output end of the bottom end of the multi-port valve (20). An air inlet valve (24) is installed in the bottom wall of the resonant cavity (19). The air inlet valve (24) is located directly below the multi-port valve (20). A guide rod (23) is installed on the top of the air inlet valve (24). The guide rod (23) is positioned opposite to the one-way valve (22). Multiple suction tubes (17) are provided between the resonant cavity (19) and the interlayer airbag (11). The top end of the suction tube (17) is connected to the interface (14) installed at the top of the interlayer airbag (11). The bottom end of the suction tube (17) penetrates the bottom wall of the interlayer airbag (11) and is located on the outside of the interlayer airbag (11). Multiple neck openings (18) are provided between the suction tube (17) and the resonant cavity (19). The mounting platform (1) is equipped with a suction mechanism and a jet mechanism. The suction mechanism is connected to the interface (14), and the jet mechanism is connected to the air intake pipe (15).

2. The airway secretion removal device for ICU departments according to claim 1, characterized in that, A sealing plug (16) is provided between the top of the resonant cavity (19) and the air intake pipe (15). The sealing plug (16) is used to enhance the sealing effect between the air intake pipe (15) and the resonant cavity (19).

3. The airway secretion removal device for ICU departments according to claim 1, characterized in that, The jet pipe (21) is curved and bent upward, so that the oxygen ejected from the jet pipe (21) can move upward along the inner wall of the resonant cavity (19).

4. The airway secretion removal device for ICU departments according to claim 1, characterized in that, The bottom end of the suction tube (17) is designed to be bent outwards to fit the bifurcated bronchus.

5. The airway secretion removal device for ICU departments according to claim 1, characterized in that, A side suction tube (13) is connected above the suction tube (17). The end of the side suction tube (13) away from the suction tube (17) penetrates the side wall of the interlayer airbag (11) and is located outside the interlayer airbag (11).

6. The airway secretion removal device for ICU departments according to claim 5, characterized in that, The outer surface of the sandwich airbag (11) at its widest point is provided with a scratching texture (12), which is located below the side suction tube (13).

7. The airway secretion removal device for ICU departments according to claim 1, characterized in that, The jet mechanism includes a jet device (4) installed inside the mounting platform (1). The output end of the jet device (4) is connected to a conduit (8). The end of the conduit (8) away from the jet device (4) is connected to a connecting pipe (9). The top end of the air inlet pipe (15) is connected to the connecting pipe (9) on the jet device (4).

8. The airway secretion removal device for ICU departments according to claim 1, characterized in that, The suction mechanism includes a suction device (3) installed inside the mounting platform (1). The input end of the suction device (3) is connected to another conduit (8). The end of the conduit (8) away from the suction device (3) is connected to another connecting tube (9). The end of the interface (14) away from the suction tube (17) is connected to the connecting tube (9) on the suction device (3).

9. The airway secretion removal device for ICU departments according to claim 7 or 8, characterized in that, A liquid storage tank (2) is also installed inside the mounting platform (1). A liquid guide pipe (7) is connected between the output end of the suction device (3) and the input end of the liquid storage tank (2). A drain pipe (6) is connected to the output end of the liquid storage tank (2).

10. The airway secretion removal device for ICU departments according to claim 9, characterized in that, An adjustment device (5) is also installed on the inner side of the mounting platform (1). The adjustment device (5) is used to adjust the height of the suction device (3) and the jet device (4) to facilitate their assembly and disassembly.

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