Nursing device for preventing ventilator-associated pneumonia

Abstract

The invention belongs to the technical field of medical apparatus and instruments, particularly relates to a nursing device for preventing ventilator-associated pneumonia, and aims to overcome the defect that in the prior art, secretions under the glottis of a patient with an indwelling artificial airway are difficult to suck out, so that the probability that the patient suffers from ventilator-associated pneumonia is increased. A mounting ring is fixedly mounted on one side of the suction tube, two handle frames are symmetrically and fixedly mounted on one side of the mounting ring, a supporting tube is fixedly mounted on the inner wall of one side of the suction tube, and one end of the supporting tube extends to the outer side of the suction tube and is fixedly provided with a butt joint cover. The device is simple in structure and convenient to use, can conveniently collect sucked secretions, and can prevent gas or the sucked secretions from flowing back to the subglottis of a patient in the process of sucking the secretions of the patient, so that when the subglottis secretions are sucked, good safety is provided, and the safety of the patient is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a nursing device for preventing ventilator-associated pneumonia. Background Art

[0002] Ventilator-associated pneumonia (VAP) is the most common and significant type of hospital-acquired pneumonia and one of the most common complications of mechanical ventilation. Patent publication number CN216798143U discloses a nursing device for preventing VAP. However, this technical solution has certain limitations in practical application, including the following issues: 1. During the long-term indwelling of an artificial airway, a certain amount of secretions will remain under the glottis. In order to prevent the secretions under the glottis from flowing into the patient's lungs, the secretions under the glottis need to be suctioned out. However, it is difficult for patients with long-term indwelling artificial airways to discharge the secretions on their own. If the secretions flow into the patient's lungs, it is easy to cause ventilator-associated pneumonia. The current suction device is also difficult to suction the secretions produced under the glottis, so there will be certain inconveniences in caring for the patient. 2. Furthermore, when expectorating, patients usually use a suction device with a hose to suck out secretions. However, this method can only suck the secretions into a collection tank, which is not convenient for collecting secretions. 3. Finally, when using an aspirator with a hose to aspirate secretions, due to the limited capacity of the syringe, it is often necessary to pull the piston in the syringe multiple times to ensure that the secretions under the patient's glottis can be aspirated. However, when pulling the piston in the syringe multiple times, the syringe needs to be disconnected from the hose to prevent the gas or secretions extracted from the syringe from flowing back to the patient's subglottis through the hose when the piston is pushed to reset. However, connecting or disconnecting the syringe and the hose multiple times will make it more troublesome to extract secretions.

[0003] In response to the above problems, this invention document proposes a nursing device for preventing ventilator-associated pneumonia. Summary of the Invention

[0004] The present invention provides a nursing device for preventing ventilator-associated pneumonia, which solves the disadvantage in the prior art that it is difficult to suck out the secretions under the glottis of the patient, thereby increasing the probability of the patient suffering from ventilator-associated pneumonia.

[0005] The present invention provides the following technical solutions: A nursing device for preventing ventilator-associated pneumonia includes a suction cylinder, a mounting ring fixedly mounted on the suction cylinder, two handle frames symmetrically fixedly mounted on one side of the mounting ring, a support tube fixedly mounted on the inner wall of one side of the suction cylinder, one end of the support tube extending to the outside of the suction cylinder and fixedly mounted with a docking cover, and the nursing device further includes: The suction mechanism is mounted on the suction tube, with one side of the suction mechanism extending into the suction tube and fitting tightly against the inner wall of the suction tube. The suction mechanism is used to suck out secretions under the patient's glottis; Two exhaust mechanisms, the two exhaust mechanisms are respectively mounted on the top inner wall and the bottom inner wall of the support tube, and one side of the exhaust mechanism extends to the outside of the support tube; The collecting mechanism is clamped with the docking cover and is used to collect the sucked secretions; The hose mechanism is connected with the collecting mechanism and is used for transporting secretions.

[0006] In one possible design, the suction mechanism includes a threaded ring fixedly mounted on the suction cylinder, a cover plate is threadedly connected to the threaded ring, a push rod is slidably connected through the cover plate, one end of the push rod extends into the suction cylinder and is fixedly mounted with a piston plate, the piston plate is tightly slidably connected to the inner wall of the suction cylinder, and the other end of the push rod is fixedly mounted with a pulling frame.

[0007] In one possible design, the exhaust mechanism includes a mounting tube fixedly mounted on the inner wall of one side of the support tube, one end of the mounting tube extends to the outside of the support tube and is fixedly mounted with an exhaust pipe, a sealing assembly is installed in the exhaust pipe, and the sealing assembly can realize one-way exhaust so that when the piston plate approaches the support tube, the gas can be discharged from the mounting tube and the exhaust pipe.

[0008] In one possible design, the sealing assembly includes a support frame fixedly installed in the exhaust pipe, a buffer rod is slidably connected to the support frame, a first spherical plate is fixedly installed on the bottom end of the buffer rod, a sealing ring is fixedly installed in the exhaust pipe, the first spherical plate fits tightly against the inner wall of the sealing ring, and a first compression spring located in the exhaust pipe is sleeved on the buffer rod, and the top and bottom ends of the first compression spring are fixedly connected to the bottom of the support frame and the top of the first spherical plate, respectively.

[0009] In one possible design, a support base is fixedly installed in the support tube, a spherical hole is provided on the support base, a second spherical plate is provided in the spherical hole, one side of the second spherical plate extends into the support tube, the second spherical plate fits tightly against the inner wall of the spherical hole, two movable holes are symmetrically provided on the support base, two support assemblies are symmetrically installed on one side of the second spherical plate, the support assemblies pass through the corresponding movable holes and extend to one side of the support base, and the support assemblies are connected to one side of the support base.

[0010] In one possible design, the support assembly includes a moving rod fixedly mounted on one side of the second spherical plate, one end of the moving rod passes through the corresponding moving hole and extends to one side of the support seat, the second spherical plate is used to block the two moving holes, and the moving rod is provided with a second compression spring located on one side of the support seat, and the two ends of the second compression spring are respectively fixedly connected to one end of the moving rod and one side of the support seat.

[0011] In one possible design, the collection mechanism includes a docking tube that is clamped with the docking cover, one end of the docking tube extends to the outside of the docking cover and is fixedly installed with a mounting cover, a support ring is fixedly installed in the mounting cover, a filter screen cylinder is penetrated in the support ring, a connecting assembly is connected to the mounting cover, and the connecting assembly is connected to the hose mechanism.

[0012] In one possible design, the connection assembly includes a fixing ring fixedly mounted on the mounting cover, with two convex clamping plates symmetrically fixedly mounted on one side of the fixing ring. The connection assembly also includes a connecting ring, which is clamped with the hose mechanism, and a docking ring fixedly mounted on one side of the connecting ring. Two arc-shaped clamping grooves are axially symmetrically formed on one side of the docking ring, and one side of the convex clamping plate extends into the corresponding arc-shaped clamping groove and is clamped with the arc-shaped clamping groove. Support plates are fixedly installed on the top and bottom of the fixing ring, and a plug rod is slidably connected to the support plate. Two slots are symmetrically provided on one side of the connecting ring. One end of the plug rod extends into the slot and is clamped in the slot. A third compression spring is provided on the plug rod, and both ends of the third compression spring are fixedly connected to the support plate and the plug rod respectively.

[0013] In one possible design, the hose mechanism includes a card cover that is clamped on a connecting ring, a pressure ring is fixedly installed in the card cover, one side of the pressure ring passes through the connecting ring and extends into the mounting cover, the pressure ring cooperates with the support ring to position the filter screen cylinder, a hose is fixedly installed through the inner wall of one side of the card cover, a cannula is fixedly installed at one end of the hose, and a suction nozzle is sleeved on the cannula.

[0014] In a possible design, a mounting bracket is fixedly installed in the cannula, a fill-light camera is fixedly installed on one side of the mounting bracket, a display screen is installed on the suction tube, and the display screen and the fill-light camera are electrically connected in an active manner.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.

[0016] Beneficial effects: In the present invention, the suction mechanism is provided, and the push rod can be driven to move by pushing and pulling the pull frame horizontally. At this time, under the action of the push rod, the piston plate can be driven to perform horizontal reciprocating motion in the suction cylinder, so that when the patient's secretions are sucked out, stable suction can be provided, thereby making it easy to suck out the secretions. In the present invention, by providing an exhaust mechanism, when the piston plate moves in a direction close to the support tube, the gas between the support tube and the piston plate can flow into the two mounting tubes under the thrust of the piston plate. After the gas flows into the exhaust pipe, the blocking component can be pushed to move under the action of the air pressure, thereby making the exhaust pipe in a connected state and exhausting the gas. In the present invention, by means of the provided collecting mechanism, the docking tube can be inserted into the docking cover and plugged and mounted with the docking cover, and then the filter screen cartridge can be placed in the installation cover and supported by the supporting ring. Then, under the action of the connecting assembly, the installation cover and the hose mechanism can be connected. At this time, when the pulling frame is pulled to drive the piston plate to move, the secretions can be sucked into the filter screen cartridge through the hose mechanism under the action of suction, thereby achieving the absorption of the secretions. In the present invention, the hose mechanism is provided, and the card cover can be mounted on the connecting ring. At this time, the pressure ring can be used to limit the filter cylinder. After that, the suction nozzle is put on the cannula, and the suction nozzle can be inserted into the patient's mouth until it reaches the subglottic position. At this time, under the action of suction, the secretions can be absorbed by the suction nozzle, and then the secretions can be transported to the filter cylinder through the cannula, the hose and the card cover so that the secretions can be collected.

[0017] The present invention can suction out the subglottic secretions of patients who have been indwelling an artificial airway for a long time and cannot discharge secretions independently, and can conveniently collect the suctioned secretions. At the same time, in the process of suctioning secretions from the patient, it can prevent the gas or the extracted secretions from flowing back to the patient's subglottis, thereby providing good safety when suctioning the subglottic secretions and ensuring the safety of the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional schematic diagram of the first-perspective structure of a nursing device for preventing ventilator-associated pneumonia provided by an embodiment of the present invention; Figure 2 A three-dimensional schematic diagram of the second perspective structure of a nursing device for preventing ventilator-associated pneumonia provided by an embodiment of the present invention; Figure 3 A three-dimensional schematic diagram of the separation structure of the suction cylinder and the piston plate of the nursing device for preventing ventilator-associated pneumonia provided by an embodiment of the present invention; Figure 4 A three-dimensional schematic diagram of the connection structure of the mounting pipe, exhaust pipe, support frame, and first spherical plate of the nursing device for preventing ventilator-associated pneumonia provided by an embodiment of the present invention; Figure 5 A three-dimensional schematic diagram of the cross-sectional structure of the suction tube of a nursing device for preventing ventilator-associated pneumonia provided by an embodiment of the present invention; Figure 6 A schematic cross-sectional view of the connection structure of the connecting ring, the mounting cover and the card cover of the nursing device for preventing ventilator-associated pneumonia provided by an embodiment of the present invention; Figure 7 A three-dimensional schematic diagram of the separation structure of the connecting ring, filter cylinder, and mounting cover of the nursing device for preventing ventilator-associated pneumonia provided by an embodiment of the present invention; Figure 8 A three-dimensional schematic diagram of the connection structure of the mounting cover, the fixing ring, and the two convex clips of the nursing device for preventing ventilator-associated pneumonia provided by an embodiment of the present invention; Figure 9 A three-dimensional schematic diagram of the connection structure of the intubation tube, mounting bracket and fill-light camera of the nursing device for preventing ventilator-associated pneumonia provided by an embodiment of the present invention.

[0019] Reference numerals: 1. Suction tube; 2. Mounting ring; 3. Handle frame; 4. Threaded ring; 5. Cover plate; 6. Push rod; 7. Piston plate; 8. Pulling frame; 9. Support tube; 10. Docking cover; 11. Mounting tube; 12. Exhaust pipe; 13. Sealing ring; 14. Buffer rod; 15. Support frame; 16. First spherical plate; 17. First compression spring; 18. Support seat; 19. Moving rod; 20. Second spherical plate; 21. Second compression spring Spring; 22. Mounting cover; 23. Docking tube; 24. Filter cylinder; 25. Connecting ring; 26. Docking ring; 27. Arc-shaped slot; 28. Fixing ring; 29. ​​Support plate; 30. Insert rod; 31. Third compression spring; 32. Convex card plate; 33. Card cover; 34. Pressing ring; 35. Support ring; 36. Hose; 37. Insert tube; 38. Nozzle; 39. Display screen; 40. Mounting bracket; 41. Fill light camera. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described below with reference to the accompanying drawings.

[0021] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection", and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "communication" can be a direct connection or an indirect connection through an intermediate medium. Here, "fixed" means that the two are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0022] Example 1: Reference Figures 1-9 This embodiment of a nursing device for preventing ventilator-associated pneumonia includes a suction cylinder 1, which is fixedly mounted with a mounting ring 2. Two handles 3 are symmetrically mounted on one side of the mounting ring 2, facilitating handheld operation by medical personnel. A support tube 9 is fixedly mounted on the inner wall of one side of the suction cylinder 1. One end of the support tube 9 extends to the outside of the suction cylinder 1 and is fixedly mounted with a docking cover 10.

[0023] In order to achieve the function of attracting secretions, such as Figure 3 As shown, the device is provided with a suction mechanism. The suction mechanism is installed on the suction tube 1, specifically, it includes a threaded ring 4 fixedly mounted on the suction tube 1, and a cover plate 5 is threadedly connected to the threaded ring 4. The cover plate 5 can be opened or closed by rotating the cover plate 5. A push rod 6 is slidably connected through the cover plate 5. One end of the push rod 6 extends into the suction tube 1 and is fixedly mounted with a piston plate 7. The piston plate 7 is tightly slidably connected to the inner wall of the suction tube 1 to ensure sealing. A pulling frame 8 is fixedly mounted on the other end of the push rod 6. By pushing and pulling the pulling frame 8 horizontally, the push rod 6 can be driven to move, thereby driving the piston plate 7 to perform horizontal reciprocating motion in the suction tube 1. When the piston plate 7 moves toward the support tube 9, a negative pressure is formed in the suction tube 1, which can facilitate the suction of secretions.

[0024] In order to discharge the gas in the support tube 9, Figure 4In the device, two exhaust mechanisms are provided, which are respectively installed on the top inner wall and the bottom inner wall of the support tube 9. Each exhaust mechanism includes a mounting tube 11 fixedly installed on the inner wall of one side of the support tube 9, and one end of the mounting tube 11 extends to the outside of the support tube 9 and is fixedly installed with an exhaust pipe 12. A sealing component is installed in the exhaust pipe 12 to achieve one-way exhaust. The sealing component includes a support frame 15 fixedly installed in the exhaust pipe 12, and a buffer rod 14 is slidingly connected through the support frame 15, and a first spherical plate 16 is fixedly installed at the bottom end of the buffer rod 14. A sealing ring 13 is fixedly installed in the exhaust pipe 12, and the first spherical plate 16 fits tightly with the inner wall of the sealing ring 13. A first compression spring 17 located in the exhaust pipe 12 is sleeved on the buffer rod 14, and the top and bottom ends of the first compression spring 17 are fixedly connected to the bottom of the support frame 15 and the top of the first spherical plate 16 respectively. When piston plate 7 approaches support tube 9, the gas between support tube 9 and piston plate 7 flows into two mounting tubes 11 under the thrust of piston plate 7. The gas then flows into exhaust pipe 12. Under the action of gas pressure, the first spherical plate 16 is pushed upward and separated from sealing ring 13. At this time, the gas can be discharged outward through sealing ring 13. After the gas is discharged, the elastic potential energy of first compression spring 17 pushes first spherical plate 16 downward, tightly fitting with sealing ring 13, preventing external gas from entering support tube 9.

[0025] To collect aspirated secretions, such as Figure 6 and Figure 7 As shown, the device is provided with a collecting mechanism, which is clamped with the docking cover 10 for easy removal and replacement. At the same time, in order to transport the secretions, the device is also provided with a hose mechanism, which is clamped with the collecting mechanism and can transport the secretions to a designated collection container.

[0026] During use, a healthcare provider holds the device using the handle frame 3, aligns the docking cover 10 with the patient's subglottis, and then pushes and pulls the pull frame 8, causing the piston plate 7 to reciprocate laterally within the suction cylinder 1, generating negative pressure to draw secretions. Secretions are drawn into the support tube 9 and then into the collection mechanism through the docking cover 10. Simultaneously, the exhaust mechanism expels air from the support tube 9, ensuring a smooth suction process. When the collection mechanism reaches a certain volume, the healthcare provider can remove it from the docking cover 10, replace it with a new one, and transfer the secretions to a designated collection container.

[0027] A support base 18 is fixedly installed in the support tube 9, and a spherical hole is provided on the support base 18. A second spherical plate 20 is provided in the spherical hole, and one side of the second spherical plate 20 extends into the support tube 9 and fits tightly with the inner wall of the spherical hole. Two movable holes are symmetrically provided on the support base 18, and two support assemblies are symmetrically installed on one side of the second spherical plate 20. The support assembly includes a movable rod 19 fixedly installed on one side of the second spherical plate 20, and one end of the movable rod 19 passes through the corresponding movable hole and extends to one side of the support base 18. The second spherical plate 20 is used to seal the two movable holes to prevent gas or secretions from flowing out of the movable holes. A second compression spring 21 is provided on the movable rod 19 and is located on one side of the support base 18. The two ends of the second compression spring 21 are fixedly connected to one end of the movable rod 19 and one side of the support base 18, respectively. In this way, by utilizing the elastic support function of the second compression spring 21 , the second spherical plate 20 can be provided with a pulling force through the movable rod 19 so that it fits tightly with the inner wall of the spherical hole, thereby achieving closure of the support tube 9 .

[0028] During secretion aspiration, when the piston plate 7 is pushed toward the support tube 9, the second spherical plate 20 blocks the flow of gas through the support tube 9 into the collection mechanism, ensuring smooth secretion aspiration. When the piston plate 7 is pulled away from the support tube 9, negative pressure is created within both the support tube 9 and the suction cylinder 1. Under this negative pressure, the second spherical plate 20 overcomes the elastic force of the second compression spring 21 and moves, breaking contact with the spherical hole. Secretions can now be drawn into the support tube 9 under suction.

[0029] Next, the collection mechanism includes a docking tube 23 that snaps into place with the docking cover 10. One end of the docking tube 23 extends outside the docking cover 10 and is fixedly mounted to the mounting cover 22. A support ring 35 is fixedly mounted within the mounting cover 22, and a filter cartridge 24 is inserted through the support ring 35. Thus, when secretions are drawn into the support tube 9, they pass through the docking cover 10, the docking tube 23, and the mounting cover 22, ultimately entering the filter cartridge 24. The filter cartridge 24 filters and collects the secretions, preventing them from entering the hose mechanism or other components.

[0030] In order to realize the connection between the mounting cover 22 and the hose mechanism, as shown in FIG. Figure 6As shown, the connection assembly includes a fixing ring 28 fixedly mounted on the mounting cover 22, with two convex clips 32 symmetrically fixedly mounted on one side of the fixing ring 28. The connection assembly also includes a connecting ring 25, which is clamped to the hose mechanism. A docking ring 26 is fixedly mounted on one side of the connecting ring 25, and two arc-shaped clips 27 are axially symmetrically formed on one side of the docking ring 26. One side of the convex clips 32 extends into the corresponding arc-shaped clips 27 and is clamped to the arc-shaped clips 27. In this way, when the mounting cover 22 is inserted into the docking ring 26, the two convex clips 32 will respectively insert into the corresponding arc-shaped clips 27, thereby achieving a preliminary connection between the mounting cover 22 and the docking ring 26.

[0031] To further enhance the stability of the connection, such as Figure 7 In the embodiment, support plates 29 are fixedly mounted on the top and bottom of the fixing ring 28, and an insert rod 30 is slidably connected to the support plate 29. Two slots are symmetrically provided on one side of the connecting ring 25, and one end of the insert rod 30 extends into the slot and is clamped with the slot. A third compression spring 31 is sleeved on the insert rod 30, and the two ends of the third compression spring 31 are fixedly connected to the support plate 29 and the insert rod 30 respectively. After the mounting cover 22 is initially connected to the docking ring 26, the mounting cover 22 can be rotated 90 degrees. At this time, the two insert rods 30 will move to the positions corresponding to the two slots. Since the third compression spring 31 is in a stressed state, it will push the corresponding insert rod 30 to move so that it is inserted into the corresponding slot. In this way, the rotation limit of the fixing ring 28 can be achieved, thereby ensuring a stable connection between the mounting cover 22 and the docking ring 26.

[0032] Through the above-described embodiment, the nursing device achieves more efficient and stable secretion suction and collection. During secretion suction, the blocking effect of the second spherical plate 20 prevents gas from flowing into the collection mechanism, thereby improving secretion suction efficiency. Furthermore, the filter cylinder 24 filters and collects secretions, preventing them from entering other components. The ingenious design of the connecting assembly ensures a stable connection between the mounting cover 22 and the hose mechanism, providing a strong guarantee for the smooth transfer of secretions.

[0033] like Figure 1 As shown, the hose mechanism primarily consists of a clamping cover 33, a pressure ring 34, a hose 36, a cannula 37, and a nozzle 38. First, the clamping cover 33 is designed to snap onto the connecting ring 25. This design ensures a secure connection between the hose mechanism, the mounting cover 22, and the filter cartridge 24. A pressure ring 34 is fixedly mounted within the clamping cover 33. One side of the pressure ring 34 extends through the connecting ring 25 and into the mounting cover 22, where it tightly fits with the support ring 35. This design allows the pressure ring 34 to effectively position the filter cartridge 24, preventing it from shifting or falling off during operation.

[0034] The hose 36 is fixedly mounted on the inner wall of one side of the card cover 33, and one end of it is connected to a cannula 37. A suction nozzle 38 is sleeved on the cannula 37. This suction nozzle 38 is a key component for directly inserting into the patient's mouth until it reaches the subglottis to absorb secretions. In actual operation, medical staff will first clamp the card cover 33 on the connecting ring 25 and use the pressure ring 34 to limit and fix the filter screen cylinder 24. Then, the suction nozzle 38 is put on the cannula 37 and inserted into the patient's mouth. Through the suction force generated by the suction tube 1, the secretions will be sucked in from the suction nozzle 38, pass through the cannula 37, the hose 36 and the card cover 33, and finally be transported to the filter screen cylinder 24 for collection.

[0035] Example 2: Reference Figure 9 This embodiment is based on Example 1. Regarding the nursing device for preventing ventilator-associated pneumonia proposed in Example 1, in order to improve the accuracy of suctioning out secretions, a mounting bracket 40 is fixedly installed in the cannula 37, and a fill-light camera 41 is fixedly installed on one side of the mounting bracket 40. At the same time, a display screen 39 is installed on the suction tube 1, and the display screen 39 and the fill-light camera 41 are electrically connected. This means that when the patient is suctioning out secretions, the fill-light camera 41 can take real-time photos of the patient's subglottis and display them on the display screen 39. In this way, medical staff can clearly see the location of the secretions, so as to perform the suction out secretions more accurately. At the same time, the provision of the fill-light camera 41 can play a guiding role in the process of inserting the suction nozzle 38 into the subglottis, so that the suction nozzle 38 can be quickly and accurately inserted into the patient's trachea.

[0036] This design not only effectively aspirates and collects secretions, but also significantly improves the accuracy of secretion extraction. The addition of the supplemental light camera 41 and display screen 39 allows medical staff to visually visualize the patient's subglottis during operation, thus avoiding the risks associated with blind operation. Furthermore, the design of the hose mechanism ensures that secretions are smoothly aspirated and collected within the filter cylinder 24, preventing the risk of secretion splashing and cross-infection.

[0037] First, insert the docking tube 23 into the docking cover 10 and plug and snap it into the docking cover 10. Then, place the filter screen cylinder 24 in the mounting cover 22 and support it with the support ring 35. Then, insert the mounting cover 22 into the docking ring 26 and insert the two convex clamping plates 32 into the corresponding arc-shaped clamping grooves 27 respectively. Then, rotate the mounting cover 22 so that the mounting cover 22 rotates 90 degrees. At this time, the two insertion rods 30 can be moved to correspond to the two slots, so that the third compression spring 31 in a stressed state can push the corresponding insertion rod 30 to move so that the insertion rod 30 is inserted into the corresponding slot, so that the rotation limit of the fixing ring 28 can be achieved. The mounting cover 22 is stably connected to the docking ring 26, and the card cover 33 is clamped on the connecting ring 25. At this time, the pressure ring 34 can be used to limit the filter cylinder 24, and then the suction nozzle 38 is put on the cannula 37, and the suction nozzle 38 can be inserted into the patient's mouth, and the suction nozzle 38 is inserted into the subglottis in the patient's trachea through the mouth. After the suction nozzle 38 is inserted into the patient's subglottis, the fill-light camera 41 can be used to photograph the patient's glottis, which can then be displayed on the display screen 39 to facilitate the determination of the location of the secretions. This can improve the accuracy of sucking out secretions during actual use, and the push rod 6 can be driven to move by pushing and pulling the pull frame 8 horizontally. At this time, when the push rod 6 is pushed 6, it can drive the piston plate 7 to perform horizontal reciprocating motion in the suction cylinder 1. When the piston plate 7 moves to the side away from the support tube 9, the support tube 9 and the suction cylinder 1 will both be in a negative pressure state. Therefore, under the action of the negative pressure, the second spherical plate 20 can be driven to move and disengage from the spherical hole. At this time, there is suction in the suction nozzle 38, and then the secretions can be transported to the filter cylinder 24 through the cannula 37, the hose 36 and the card cover 33 so that the secretions can be collected. When the piston plate 7 moves in the direction close to the support tube 9, the gas between the support tube 9 and the piston plate 7 can be pushed to the two mounting tubes 11 under the thrust of the piston plate 7. The gas flows inside, and then after the gas flows into the exhaust pipe 12, under the action of air pressure, the first spherical plate 16 can be pushed upward and separated from the sealing ring 13. At this time, the gas can be discharged outward through the sealing ring 13. When the first spherical plate 16 moves upward, the first compression spring 17 can be compressed, so that the first compression spring 17 has elastic potential energy. Therefore, after the gas is discharged, the elastic potential energy of the first compression spring 17 can push the first spherical plate 16 to move downward and fit tightly with the sealing ring 13. At this time, when suction is performed, it can prevent external gas from being transported from the exhaust pipe 12 and the mounting tube 11 to the support tube 9, thereby ensuring that the attraction to the secretions will not be reduced.

[0038] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. The embodiments of the present invention and the features therein can be combined with each other unless there is a conflict. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A nursing device for preventing ventilator-associated pneumonia, comprising a suction tube (1), a mounting ring (2) fixedly mounted on the suction tube (1), two handle frames (3) symmetrically fixedly mounted on one side of the mounting ring (2), a support tube (9) fixedly mounted on the inner wall of one side of the suction tube (1), one end of the support tube (9) extending to the outside of the suction tube (1) and fixedly mounted with a docking cover (10), characterized in that: The nursing device also includes: A suction mechanism, the suction mechanism is mounted on the suction tube (1), one side of the suction mechanism extends into the suction tube (1) and is tightly fitted with the inner wall of the suction tube (1), and the suction mechanism is used to suck out secretions existing under the glottis of the patient; Two exhaust mechanisms, the two exhaust mechanisms are respectively mounted on the top inner wall and the bottom inner wall of the support tube (9), and one side of the exhaust mechanism extends to the outside of the support tube (9); A collecting mechanism, the collecting mechanism being snap-fitted to the docking cover (10), and the collecting mechanism being used to collect the sucked secretions; The hose mechanism is connected to the collecting mechanism and is used to transport secretions.

2. The nursing device for preventing ventilator-associated pneumonia according to claim 1, characterized in that: The suction mechanism comprises a threaded ring (4) fixedly mounted on the suction cylinder (1), a cover plate (5) being threadedly connected to the threaded ring (4), a push rod (6) being slidably connected to the cover plate (5), one end of the push rod (6) extending into the suction cylinder (1) and fixedly mounted with a piston plate (7), the piston plate (7) being tightly slidably connected to the inner wall of the suction cylinder (1), and a pulling frame (8) being fixedly mounted on the other end of the push rod (6).

3. The nursing device for preventing ventilator-associated pneumonia according to claim 1, characterized in that: The exhaust mechanism comprises a mounting tube (11) fixedly mounted on an inner wall of one side of the support tube (9), one end of the mounting tube (11) extending to the outside of the support tube (9) and fixedly mounted with an exhaust pipe (12), a blocking component being mounted in the exhaust pipe (12), and the blocking component being capable of achieving one-way exhaust so that when the piston plate (7) approaches the support tube (9), gas can be discharged from the mounting tube (11) and the exhaust pipe (12).

4. The nursing device for preventing ventilator-associated pneumonia according to claim 3, characterized in that: The blocking assembly includes a support frame (15) fixedly mounted in the exhaust pipe (12), a buffer rod (14) slidingly connected to the support frame (15), a first spherical plate (16) fixedly mounted on the bottom end of the buffer rod (14), a sealing ring (13) fixedly mounted in the exhaust pipe (12), the first spherical plate (16) tightly fits the inner wall of the sealing ring (13), a first compression spring (17) located in the exhaust pipe (12) is sleeved on the buffer rod (14), and the top and bottom ends of the first compression spring (17) are fixedly connected to the bottom of the support frame (15) and the top of the first spherical plate (16), respectively.

5. The nursing device for preventing ventilator-associated pneumonia according to claim 4, characterized in that: A support base (18) is fixedly installed in the support tube (9), a spherical hole is opened on the support base (18), a second spherical plate (20) is arranged in the spherical hole, one side of the second spherical plate (20) extends into the support tube (9), the second spherical plate (20) is tightly fitted with the inner wall of the spherical hole, two movable holes are symmetrically opened on the support base (18), two support components are symmetrically installed on one side of the second spherical plate (20), the support components pass through the corresponding movable holes and extend to one side of the support base (18), and the support components are connected to one side of the support base (18).

6. The nursing device for preventing ventilator-associated pneumonia according to claim 5, characterized in that: The support assembly includes a moving rod (19) fixedly mounted on one side of a second spherical plate (20), one end of the moving rod (19) passes through the corresponding moving hole and extends to one side of the support seat (18), the second spherical plate (20) is used to block the two moving holes, and a second compression spring (21) located on one side of the support seat (18) is sleeved on the moving rod (19), and the two ends of the second compression spring (21) are fixedly connected to one end of the moving rod (19) and one side of the support seat (18), respectively.

7. The nursing device for preventing ventilator-associated pneumonia according to claim 1, characterized in that: The collecting mechanism comprises a docking tube (23) clamped with the docking cover (10), one end of the docking tube (23) extends to the outside of the docking cover (10) and is fixedly mounted with a mounting cover (22), a support ring (35) is fixedly mounted in the mounting cover (22), a filter screen cylinder (24) is provided through the support ring (35), a connecting assembly is connected to the mounting cover (22), and the connecting assembly is connected to the hose mechanism.

8. The nursing device for preventing ventilator-associated pneumonia according to claim 7, characterized in that: The connecting assembly includes a fixing ring (28) fixedly mounted on the mounting cover (22), two convex clamping plates (32) being symmetrically fixedly mounted on one side of the fixing ring (28), and the connecting assembly also includes a connecting ring (25), the connecting ring (25) being clamped with the hose mechanism, a docking ring (26) being fixedly mounted on one side of the connecting ring (25), two arc-shaped clamping grooves (27) being axially symmetrically formed on one side of the docking ring (26), and one side of the convex clamping plate (32) extending into the corresponding arc-shaped clamping groove (27) and being clamped with the arc-shaped clamping groove (27); A support plate (29) is fixedly mounted on the top and bottom of the fixing ring (28), and a plug rod (30) is slidably connected to the support plate (29). Two slots are symmetrically provided on one side of the connecting ring (25), and one end of the plug rod (30) extends into the slot and is clamped with the slot. A third compression spring (31) is sleeved on the plug rod (30), and the two ends of the third compression spring (31) are fixedly connected to the support plate (29) and the plug rod (30), respectively.

9. The nursing device for preventing ventilator-associated pneumonia according to claim 1, characterized in that: The hose mechanism comprises a card cover (33) mounted on the connecting ring (25), a pressure ring (34) fixedly mounted in the card cover (33), one side of the pressure ring (34) passes through the connecting ring (25) and extends into the mounting cover (22), the pressure ring (34) cooperates with the support ring (35) and is used to position the filter screen cylinder (24), a hose (36) is fixedly mounted on the inner wall of one side of the card cover (33), a cannula (37) is fixedly mounted on one end of the hose (36), and a suction nozzle (38) is sleeved on the cannula (37).

10. The nursing device for preventing ventilator-associated pneumonia according to claim 9, characterized in that: A mounting frame (40) is fixedly installed in the cannula (37), a light-filling camera (41) is fixedly installed on one side of the mounting frame (40), a display screen (39) is installed on the suction cylinder (1), and the display screen (39) and the light-filling camera (41) are electrically connected in an active manner.

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