Closed sputum suction tube with turbine flushing function
By designing a turbine flushing isolation valve in a closed suction catheter, the problem of the manually rotated isolation valve being easily overlooked is solved, thus enabling convenient use of the suction catheter and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2026-03-13
AI Technical Summary
The isolation valve of existing closed suction catheters needs to be manually rotated, which is easily overlooked, making it inconvenient to use and potentially causing harm to patients. In addition, its use time is limited.
A closed suction tube with turbine flushing function was designed. It consists of an isolation valve, a support base, and a flip cover. The flip cover is connected to the support base by ribs, which drives the free opening and closing of the isolation valve. The flip cover has an elliptical protrusion and small holes, which, combined with negative pressure flushing fluid, achieve all-round cleaning.
The suction catheter's lifespan has been extended to 72 hours, ensuring that the isolation valve does not get stuck during catheter movement, thus achieving a convenient cleaning effect.
Smart Images
Figure CN223988031U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of suction catheters, specifically a closed suction catheter with a turbine flushing function. Background Technology
[0002] To prevent patients from choking on sputum, manual sputum removal is usually required using a suction catheter. After suctioning, the suction catheter is rinsed to prevent microbial growth in the tubing connector, thus extending the lifespan of the closed suction catheter. To better clean the suction catheter and extend its lifespan, an isolation valve is installed inside. The isolation valve in existing closed suction catheters needs to be manually rotated. When using this type of suction catheter, it is inevitable that there will be cases where the isolation valve is forgotten to be rotated, which can cause harm to the patient and is inconvenient to use. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a closed suction tube with turbine flushing function that can be opened and closed freely and is easy to clean.
[0004] To solve the aforementioned existing technical problems, the present invention adopts the following solution: a closed suction catheter with turbine flushing function, comprising a suction catheter body and a conduit. The upper and lower ends of the suction catheter body are respectively provided with an endotracheal intubation interface and a negative pressure control interface. A conduit is movably inserted between the endotracheal intubation interface and the negative pressure control interface. The endotracheal intubation interface is provided with a humidification fluid connection port and a breathing tubing connection port on both sides. The negative pressure control interface is connected to a negative pressure device. The suction catheter body is provided with a boss, and an isolation valve is installed on the boss.
[0005] Preferably, the isolation valve consists of a support base and a flip cover, wherein the support base has a stepped groove, the flip cover is covered on the stepped groove, and the side of the flip cover is connected to the side wall of the support base by ribs.
[0006] Preferably, the surface of the rib is provided with a triangular notch.
[0007] Preferably, the flip cover has an elliptical raised structure on its surface, and the raised structure has small holes.
[0008] Preferably, the conduit has side holes on both sides.
[0009] Preferably, the negative pressure control interface has a flushing fluid connection port on its side, through which the flushing fluid enters the suction tube body and then flows out through the negative pressure control interface.
[0010] Preferably, the insulating material 9600 is thermoplastic polyurethane, TPU, or PVC.
[0011] This utility model adopts the above-mentioned technical solution to provide a closed suction tube with turbine flushing function, which has the following advantages compared with the existing technology:
[0012] 1. An isolation valve is installed inside the closed suction catheter, which can extend the usage time of the closed suction catheter from 24 hours to 72 hours.
[0013] 2. The flip cover is installed on the side wall of the support base by ribs. When the guide tube extends and retracts, the flip cover can be opened and closed freely.
[0014] 3. Small holes are provided on the raised structure of the flip cover. The raised structure adopts an elliptical design. When the guide tube is pulled back, it can prevent the isolation valve from getting stuck on the side hole. Under the action of negative pressure, the flushing fluid will form a turbine flushing effect along the periphery of the guide tube, which can achieve a thorough cleaning effect.
[0015] 4. The entire isolation valve is injection molded in one piece, and the material is an elastomer with a hardness of 55A, which increases the rebound effect of the isolation valve. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a partial schematic diagram of the suction tube body of this utility model.
[0018] Figure 3 This is a schematic diagram of the installation structure of the isolation valve of this utility model.
[0019] Figure 4 This is a partial schematic diagram of the boss of this utility model.
[0020] Figure 5 This is a partial schematic diagram of the isolation valve of this utility model.
[0021] In the diagram, the suction catheter body 1, catheter 2, endotracheal intubation interface 3, negative pressure control interface 4, humidification fluid connection port 5, breathing tubing connection port 6, boss 7, isolation valve 8, support base 9, stepped groove 10, flip cover 11, rib 12, triangular notch 13, raised structure 14, small hole 15, side hole 16, and irrigation fluid connection port 17. Detailed Implementation
[0022] like Figures 1 to 5As shown, a closed suction catheter with turbine flushing function includes a suction catheter body 1 and a tubing 2. The suction catheter body 1 has an endotracheal intubation interface 3 and a negative pressure control interface 4 at its upper and lower ends, respectively. The tubing 2 is movably inserted between the endotracheal intubation interface 3 and the negative pressure control interface 4. The endotracheal intubation interface 3 has humidification fluid connection ports 5 and breathing tubing connection ports 6 on both sides. The negative pressure control interface 4 is connected to a negative pressure device. The suction catheter body 1 has a protrusion 7, on which an isolation valve 8 is installed. The isolation valve 8 consists of a support base 9 and a flip-top cover 10. The support base 9 has a step inside. The groove 10 is covered with a flip cover 11. The side of the flip cover 11 is connected to the side wall of the support base 9 by a rib 12. The surface of the rib 12 is provided with a triangular notch 13. The surface of the flip cover 10 is provided with an elliptical protrusion 14. The protrusion 14 is provided with a small hole 15. The catheter 2 is provided with side holes 16 on both sides. The side of the negative pressure control interface 4 is provided with a flushing fluid connection port 17. The flushing fluid enters the suction tube body 1 through the flushing fluid connection port 17 and then flows out through the negative pressure control interface 4. The isolation valve 8 is made of thermoplastic polyurethane, TPU or PVC.
[0023] In actual operation, the endotracheal intubation port 3 is connected to the patient, the breathing tubing connection port 6 is connected to the ventilator, and the humidification fluid connection port 5 is connected to the humidifier. After connection, the catheter 2 is moved upward along the inner lumen of the suction catheter body 1, so that the suction catheter body 1 pushes open the flip cover 11 on the isolation valve 8, passes through the endotracheal intubation port 3, and enters the patient's throat to facilitate suctioning. After suctioning, the catheter 2 is withdrawn. When the catheter 2 returns to the bottom of the isolation valve 8, since the flip cover 11 is connected to the support base 9 by the rib 12, the flip cover 11 will move along the support base. The seat 9 returns to its original position, covering the surface of the stepped groove 10. The side of the support base 9 has an arc-shaped structure, which can better fit the inner wall of the suction tube body 1. The flushing fluid enters the suction tube body 1 through the flushing fluid connection port 17. On the elliptical protrusion on the inner side of the isolation valve 8, when the catheter is pulled up and down along the isolation valve, it can effectively prevent the isolation valve from getting stuck in the side hole of the catheter. The protrusion has small holes. When the flushing fluid is suctioned by negative pressure, it will form a turbine at the bottom of the isolation valve 8, which facilitates a thorough cleaning of the catheter and makes it more convenient to use.
[0024] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. A closed type sputum suction tube with a turbine flushing function, comprising a sputum suction tube body (1), a catheter (2), characterized in that: The sputum suction tube body (1) is provided with a tracheal cannula interface (3) and a negative pressure control interface (4) at the upper and lower ends respectively, a catheter (2) is movably arranged between the tracheal cannula interface (3) and the negative pressure control interface (4), the tracheal cannula interface (3) is provided with a humidifying liquid connecting port (5) and a breathing pipeline connecting port (6) on both sides, the negative pressure control interface (4) is connected with a negative pressure device, the sputum suction tube body (1) is provided with a boss (7), and the boss (7) is provided with an isolation valve (8).
2. The closed suction tube with turbine flushing function according to claim 1, characterized in that: The isolation valve (8) is composed of a supporting base (9) and a turnover cover (10), the supporting base (9) is provided with a stepped groove (11), the turnover cover (10) is arranged on the stepped groove (11), and the side wall of the supporting base (9) is connected with the side wall of the turnover cover (10) through a rib (12).
3. The closed suction tube with turbine flushing function according to claim 2, characterized in that: The rib (12) is provided with a triangular notch (13) on the surface.
4. The closed suction tube with turbine flushing function according to claim 2, characterized in that: The surface of the turnover cover (10) is provided with an oval convex structure (14), and the convex structure (14) is provided with a small hole (15).
5. The closed suction tube with turbine flushing function according to claim 1, characterized in that: The catheter (2) is provided with a side hole (16) on both sides.
6. The closed suction tube with turbine flushing function according to claim 1, characterized in that: The negative pressure control interface (4) is provided with a flushing liquid connecting port (17), and the flushing liquid enters the sputum suction tube body (1) through the flushing liquid connecting port (17) and then flows out through the negative pressure control interface (4).
7. The closed suction tube with turbine flushing function according to claim 2, characterized in that: The isolation valve (8) is made of thermoplastic polyurethane material, TPU material or PVC material.