Visual guide closed type sputum suction tube
By introducing a camera and LEDs into the suction catheter, the problem of lack of visualization in traditional suction catheters is solved, enabling real-time lighting and precise operation, thus improving the safety and efficiency of suctioning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI ZESHU MEDICAL TECHNOLOGY CO LTD
- Filing Date
- 2024-12-09
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional suction catheters lack visualization technology, which makes operation difficult and risky, and the limited field of vision affects the suctioning effect and patient safety.
A visually guided closed suction tube was designed, equipped with a camera and LEDs to provide real-time illumination and a clear field of view. The camera is guided by a guide wire and an internal cable. Combined with negative pressure suction and auxiliary components, it ensures precise operation.
It improves the accuracy and safety of sputum suctioning procedures, reduces harm to patients, increases work efficiency and visual clarity, and reduces unnecessary interruptions and pain.
Smart Images

Figure CN224235829U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of suction catheter technology, specifically a visually guided closed suction catheter. Background Technology
[0002] Currently, a suction catheter is a medical device that is typically used to help patients clear secretions, including sputum and other foreign objects, from their mouth, throat, and bronchi.
[0003] Traditional suction catheters used in intensive care units have significant design limitations. The biggest drawback is the lack of visualization technology; specifically, they lack a built-in camera, a crucial component. This means that medical staff cannot observe the catheter's position and status within the patient's body in real time during operation. They must rely on experience and touch to blindly insert and adjust the catheter. This "blind operation" not only increases the difficulty and risk of the procedure but may also lead to unnecessary harm to the patient, such as mucosal damage or aspiration complications. Furthermore, the lack of a camera makes it difficult for medical staff to accurately determine if the catheter has reached the optimal suction position, affecting suction effectiveness. Additionally, the limited field of vision during suctioning without lighting further exacerbates the difficulty. Moreover, after prolonged use, the tip of traditional suction catheters is easily contaminated with sputum and secretions, obstructing the view and forcing medical staff to frequently interrupt the procedure for cleaning. This not only reduces work efficiency but may also increase patient suffering. Utility Model Content
[0004] The purpose of this invention is to provide a visually guided closed suction tube, which solves the problem of poor operational precision.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a visually guided closed suction tube, comprising a suction tube, a suction lumen, and auxiliary components. The suction tube is provided with graduation marks, and a suction control valve is installed at the top of the suction tube. The suction tube also includes a protruding tube and a camera. The suction lumen is disposed inside the suction tube. The auxiliary components are sleeved on the outer wall of the suction tube. The protruding tube is fixedly connected to the inner wall of the suction lumen. A guide wire is disposed inside the protruding tube. A cavity is disposed inside the guide wire. An internal cable is installed inside the cavity. The camera is installed at one end of the internal cable. An external cable is installed at the other end of the internal cable. A connector is installed at one end of the external cable.
[0006] The inner wall of the protruding pipe is provided with two symmetrically arranged connecting cavities. A connecting cavity is provided on one side of each connecting cavity. One end of the two connecting cavities is fixedly connected to a connecting pipe, and one end of each connecting cavity is connected to a connector.
[0007] Preferably, one end of the suction tube is fixedly connected to a negative pressure connection end, and the negative pressure connection end is provided with a negative pressure connection port.
[0008] Preferably, the auxiliary component includes a fixing connector and an artificial airway interface. The fixing connector is fixedly connected to the outer wall of the suction tube, and the artificial airway interface is movably sleeved on the outer wall of the suction tube. A thin film sleeve is connected to both the fixing connector and the artificial airway interface. A ventilator interface is provided on one side of the artificial airway interface, and an irrigation tube and a drug injection tube are provided on the other side of the artificial airway interface.
[0009] Preferably, the camera is equipped with a plurality of circumferentially distributed LED beads.
[0010] Preferably, a side suction hole is provided on one side of the suction tube.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] This invention, through the design of a camera and LED beads, provides clear illumination through the LED beads during suction catheter insertion. Furthermore, by connecting to an oxygen concentrator or connecting chamber during use, the camera's acquisition end can be thoroughly rinsed and cleaned at any time during suctioning, effectively preventing obstruction of vision and ensuring medical personnel have a continuous and clear field of vision, greatly improving the accuracy and safety of the procedure. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a bottom view of the overall structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the overall structure of the suction tube of this utility model;
[0016] Figure 4 This is a schematic diagram of one end of the suction tube of this utility model;
[0017] Figure 5 This is a schematic diagram of the internal structure of the suction tube of this utility model;
[0018] Figure 6 This is a cross-sectional view of the internal structure of the suction tube of this utility model;
[0019] Figure 7 This is a cross-sectional view of the guide wire of this utility model.
[0020] In the diagram: 1. Suction tube; 10. Scale marks; 11. Suction lumen; 111. Side suction port; 12. Negative pressure connection end; 122. Negative pressure connection port;
[0021] 2. Auxiliary components; 21. Fixing connector; 22. Membrane sleeve; 23. Artificial airway interface; 24. Ventilator interface; 25. Flushing tubing; 26. Drug delivery tubing;
[0022] 3. Protruding pipe; 31. Guide wire;
[0023] 4. Camera; 401. LED bead; 41. Internal cable; 42. External cable; 43. Connecting plug;
[0024] 5. Connecting lumen; 51. Connecting cavity; 52. Connecting through pipe; 53. Connector;
[0025] 6. Suctioning control valve. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1-7 A visually guided closed suction tube includes a suction tube 1, a suction lumen 11, and an auxiliary component 2. The suction tube 1 is equipped with a scale 10, and a suction control valve 6 is installed at the top of the suction tube 1. The suction tube 1 also includes a protruding tube 3 and a camera 4. The suction lumen 11 is located inside the suction tube 1. The auxiliary component 2 is sleeved on the outer wall of the suction tube 1. The protruding tube 3 is fixedly connected to the inner wall of the suction lumen 11. A guide wire 31 is provided inside the protruding tube 3. A cavity is provided inside the guide wire 31. An internal cable 41 is installed inside the cavity. The camera 4 is installed at one end of the internal cable 41. An external cable 42 is installed at the other end of the internal cable 41. A connector 43 is installed at one end of the external cable 42.
[0028] Two symmetrically arranged connecting cavities 5 are provided on the inner wall of the protruding pipe 3. A connecting cavity 51 is provided on one side of the connecting cavity 5. One end of the two connecting cavities 51 is fixedly connected to a connecting tube 52. One end of the connecting tube 52 is connected to a connector 53. With the setting of the camera 4, LED bead 401 and other structures, when the suction tube 1 is inserted, the camera 4 provides clear illumination through the LED bead 401. In use, it is connected to an oxygen machine or connecting cavity 51, so that the camera 4 can be fully blown and rinsed at any time during the suctioning process, effectively avoiding obstruction of vision, ensuring that medical staff have a continuous and clear field of vision, and greatly improving the accuracy and safety of the operation.
[0029] Please see Figure 1-7 One end of the suction tube 11 is fixedly connected to a negative pressure connection end 12, and a negative pressure connection port 122 is provided on the negative pressure connection end 12. The auxiliary component 2 includes a fixed connector 21 and an artificial airway interface 23. The fixed connector 21 is fixedly connected to the outer wall of the suction tube 1, and the artificial airway interface 23 is movably sleeved on the outer wall of the suction tube 1. A thin film sleeve 22 is connected to both the fixed connector 21 and the artificial airway interface 23. A ventilator interface 24 is provided on one side of the artificial airway interface 23, and an irrigation tube 25 and a drug injection tube 26 are provided on the other side of the artificial airway interface 23. Several circumferentially distributed LED beads 401 are installed on the camera 4, and a side suction hole 111 is provided on one side of the suction tube 1.
[0030] The specific implementation process of this utility model is as follows: When using the suction tube 1, the shape of the suction tube 1 is adjusted manually through the guide wire 31 according to the insertion requirements of the suction tube 1. After the adjustment is completed, the suction tube 1 is inserted into the patient's body. At this time, it is connected to the external visual video connector through the connector plug 43. After the connection is completed, the suction point is illuminated by the LED bead 401 on the camera 4. At the same time, the external visual video connector is electrically connected to the connector plug 43 to monitor and observe the image captured by the connector plug 43 in real time, which facilitates the insertion of the suction tube 1 by medical staff. After the top of the suction tube reaches the position to be suctioned, it is connected to the external negative pressure device through the negative pressure connection port 122 and negative pressure connection end 12 on the suction tube 1 to perform negative pressure suction. The sputum is suctioned out through the suction lumen 11 and the side suction hole 111.
[0031] Furthermore, during the use of camera 4, an oxygen generator or diluent pipeline can be connected via connector 53, thereby injecting air and liquid into connecting chamber 51 through connecting pipe 52. Connecting chamber 51 is symmetrically arranged on both sides of camera 4, allowing for comprehensive blowing and rinsing of the camera 4's shooting end.
[0032] Furthermore, during equipment use, the device is connected to the endotracheal tube via the artificial airway interface 23. When the patient's secretions are viscous, a small amount of sterile saline or distilled water can be injected through the injection tube 26 using a syringe to dilute the secretions before suctioning. Alternatively, a bronchodilator can be injected to achieve dilation. Oxygen assistance can be provided to the patient through the ventilator interface 24. After suctioning is completed, the suction tube 1 is slowly withdrawn, and the withdrawal position is determined by the scale 10. After withdrawal, sterile saline is injected through the flushing tube 25 to clean the inner wall of the suction tube 1 for the next use.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A visually guided closed suction catheter, comprising a suction catheter (1), a suction lumen (11), and auxiliary components (2), characterized in that: The suction tube (1) is provided with a scale mark (10), and a suction control valve (6) is installed on the top of the suction tube (1). The suction tube (1) also includes a protruding pipe (3) and a camera (4). The suction cavity (11) is located inside the suction tube (1). The auxiliary component (2) is sleeved on the outer wall of the suction tube (1). The protruding pipe (3) is fixedly connected to the inner wall of the suction cavity (11). A guide wire (31) is provided inside the protruding pipe (3). A cavity is provided inside the guide wire (31). An internal cable (41) is installed inside the cavity. The camera (4) is installed at one end of the internal cable (41). An external cable (42) is installed at the other end of the internal cable (41). A connector (43) is installed at one end of the external cable (42). The inner wall of the protruding pipe (3) is provided with two symmetrically arranged connecting cavities (5). A connecting cavity (51) is provided on one side of the connecting cavity (5). One end of the two connecting cavities (51) is fixedly connected to a connecting pipe (52). One end of the connecting pipe (52) is connected to a connector (53).
2. The visually guided closed suction catheter according to claim 1, characterized in that: One end of the suction tube (11) is fixedly connected to a negative pressure connection end (12), and a negative pressure connection port (122) is provided on the negative pressure connection end (12).
3. The visually guided closed suction catheter according to claim 1, characterized in that: The auxiliary component (2) includes a fixed connector (21) and an artificial airway interface (23). The fixed connector (21) is fixedly connected to the outer wall of the suction tube (1). The artificial airway interface (23) is movably sleeved on the outer wall of the suction tube (1). A thin film sleeve (22) is connected to both the fixed connector (21) and the artificial airway interface (23). A ventilator interface (24) is provided on one side of the artificial airway interface (23). A flushing tube (25) and a drug injection tube (26) are provided on the other side of the artificial airway interface (23).
4. The visually guided closed suction catheter according to claim 1, characterized in that: The camera (4) is equipped with several circumferentially distributed LED beads (401).
5. The visually guided closed suction catheter according to claim 1, characterized in that: The suction tube (1) has a side suction hole (111) on one side.