Drainage tube convenient to be butted with cvc tube

Abstract

The utility model relates to the technical field of medical instruments, and discloses a drainage tube convenient to be butted with a cvc tube, which comprises a drainage tube body and a tube, the top of a connecting tube is communicated with a locking joint, the bottom of the connecting tube is provided with a connecting port communicated with the drainage tube, and the top of the connecting tube is provided with a clamping mechanism. A threaded coil is fixedly connected to the outer side of the connecting pipe, the connecting pipe is sleeved with a rotating pipe, a positive pressure cavity is formed in the connecting pipe, and a rubber plug is installed in the positive pressure cavity; according to the utility model, the drainage tube can be directly connected with the cvc tube, so that the connection steps and required devices are reduced, the whole drainage process is simplified, medical staff can complete the operation more quickly, and the working efficiency is improved; the connection firmness between the cvc tube and the drainage tube is improved, the continuity of the drainage process can be ensured through stable connection, drainage interruption caused by connection loosening or falling off is prevented, it can be ensured that liquid or gas in the body can be effectively discharged in time, and the pain of a patient is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a drainage tube which is convenient for connecting with a CVC tube. Background Art

[0002] A drainage tube is a medical device used to drain liquid or gas from the body. It is used to collect and drain liquids such as ascites, blood, pus, or for drainage of the chest cavity, abdominal cavity and other parts. The drainage tube is usually made of soft materials such as silicone or polyurethane to adapt to bending and movement in the body; when the drainage tube is connected to the CVC tube, it is mainly used to drain liquid from the part where the CVC tube is located, such as blood, liquid medicine or other body fluids. This connection method can help doctors better monitor the patient's physiological condition, promptly detect and deal with possible complications. At the same time, draining liquid through the drainage tube can also reduce the patient's physical burden and promote recovery.

[0003] A heparin cap needs to be installed between the CVC tube and the drainage tube. The main function of the heparin cap is to prevent blood reflux and coagulation. By using the heparin cap, the CVC tube and the drainage tube can be effectively kept unobstructed, avoiding blood or other body fluids from coagulating in the pipe, causing blockage or infection and other problems.

[0004] Although the heparin cap helps prevent blood clotting, if it is not firmly connected to the drainage tube, it may cause leakage, falling off and other problems, which may not only affect the drainage effect, but also increase the risk of infection for patients. In addition, a loose connection may also affect the operating efficiency of medical staff and increase the difficulty of their work.

[0005] The patent with publication number CN209108212U currently discloses a drainage tube, including a fixed tube, a connecting tube, a pipe sleeve and a drainage tube body arranged coaxially in sequence; the inner wall of the fixed tube is provided with an internal thread section; the outer wall of one end of the connecting tube is provided with an external thread section matching with the internal thread section, and the outer wall of the other end of the connecting tube is provided with a raised ring arranged coaxially with the internal thread section; one end of the pipe sleeve is sleeved on the outer wall of one end of the connecting tube and is gap-matched with the internal thread section, and the other end of the pipe sleeve is sleeved and fixed on one end of the drainage tube body; the above device solves the problem that the drainage tube body will not be entangled and twisted.

[0006] However, the above technical solution still has the following problems:

[0007] When connecting the drainage tube and the CVC tube, a heparin cap needs to be installed to prevent blood reflux and coagulation. Installing a heparin cap between the CVC tube and the drainage tube will increase the complexity of the drainage operation. A loose connection between the drainage tube and the heparin cap may cause the heparin cap to fall off, and the mixture of air and blood may promote the formation of blood clots. If the heparin cap falls off or there is a gap in the connection, bacteria and other pathogens may enter the body through these pathways, causing infection. An unstable connection may also affect the operating efficiency of medical staff and increase the difficulty of their work. Utility Model Content

[0008] In view of the deficiencies of the prior art, the utility model provides a drainage tube that is easy to connect with a CVC tube, so as to solve at least one of the problems raised by the background technology, such as: allowing the CVC tube to be directly connected to the drainage tube, simplifying the entire drainage process, allowing medical staff to complete the operation more quickly, and improving work efficiency.

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drainage tube that is easy to connect with a CVC tube, including a drainage tube body and a connecting tube connected to the top of the drainage tube body, a locking joint is connected to the top of the connecting tube, a connecting port connected to the drainage tube is opened at the bottom of the connecting tube, a clamping mechanism is installed on the top of the connecting tube, a threaded coil is fixedly connected to the outside of the connecting tube, a rotating tube is sleeved on the outside of the connecting tube, the threaded coil is rotatably connected to the inner wall of the rotating tube, a positive pressure cavity is opened inside the connecting tube, and a rubber plug is installed in the positive pressure cavity.

[0010] Furthermore, the clamping mechanism includes a sealing sheet and a rubber pad. Two symmetrical sealing sheets are installed on the top of the connecting pipe, a rubber pad is installed on the inside of the sealing sheet, elastic plastic is provided at the connection between the bottom of the sealing sheet and the connecting pipe, and the sealing sheet and the connecting pipe are set at an angle of 15 degrees.

[0011] Furthermore, the outer side of the sealing sheet and the inner wall of the rotating tube are closely connected.

[0012] Furthermore, the rubber plug is located at the bottom of the positive pressure chamber, and the positive pressure chamber is located above the rubber plug and the inner wall is fixedly connected to a limiting ring.

[0013] Furthermore, a leakage stopper is provided at the center of the rubber plug.

[0014] Furthermore, a fixing ring is installed at the bottom of the outer side of the connecting tube, and the diameter of the fixing ring is larger than the diameter of the rotating tube.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model can be directly connected to the CVC tube through the drainage tube, reducing the connection steps and the required equipment, thereby simplifying the entire drainage process, and medical staff can complete the operation more quickly, thereby improving work efficiency; the connection firmness between the CVC tube and the drainage tube is improved, and the firm connection can ensure the continuity of the drainage process, prevent drainage interruption caused by loose connection or falling off, and can ensure timely and effective discharge of liquid or gas in the body, thereby alleviating the patient's pain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the disassembly of the clamping mechanism and the three-dimensional structure of the connecting pipe of the utility model;

[0019] Figure 3 It is a side sectional schematic diagram of the connecting pipe of the utility model.

[0020] In the figure: 1. drainage tube body; 2. clamping mechanism; 3. connecting tube; 301. threaded coil; 302. fixing ring; 303. locking joint; 304. positive pressure chamber; 305. limiting ring; 306. connecting port; 4. sealing sheet; 401. elastic plastic; 5. rubber pad; 6. rotating tube; 7. rubber plug; 701. leakage stopper. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] like Figures 1 to 3 As shown, a drainage tube that is convenient for docking with a CVC tube comprises a drainage tube body 1 and a connecting tube 3 connected to the top of the drainage tube body 1, the top of the connecting tube 3 is connected with a locking joint 303, the bottom of the connecting tube 3 is provided with a connecting port 306 connected to the drainage tube, the top of the connecting tube 3 is provided with a clamping mechanism 2, the outer side of the connecting tube 3 is fixedly connected with a threaded coil 301, the outer side of the connecting tube 3 is sleeved with a rotating tube 6, the threaded coil 301 is rotatably connected to the inner wall of the rotating tube 6, a positive pressure chamber 304 is provided inside the connecting tube 3, and a rubber plug 7 is installed in the positive pressure chamber 304.

[0023] like Figure 1 As shown, a drainage tube in the utility model that is convenient for docking with a cvc tube is similar to the existing drainage tube structure, such as the drainage tube disclosed in the patent publication number CN209108212U. The main improvement of the utility model is that the connection between the cvc tube and the drainage tube is firm, which improves the stability and safety of the operation. Figures 1 to 3As shown, when a drainage tube convenient for docking with a CVC tube is used, the locking joint 303 and the external CVC tube are plugged together, and the rubber plug 7 in the connecting tube 3 blocks one end of the connecting tube 3, so that a closed space is formed between the positive pressure chamber 304 and the CVC tube to prevent the leakage of body fluids, etc. The clamping mechanism 2 wraps the locking joint 303, and the rotating tube 6 is rotated. The rotating tube 6 moves from the outside of the connecting tube 3 toward the CVC tube, and the clamping mechanism 2 is gradually contracted inwardly to squeeze and wrap the internal locking joint 303, so that the locking joint 303 and the CVC tube are kept stable. The threaded coil 301 allows the rotating tube 6 to be fixed on the outside of the connecting tube 3. When the drainage operation is performed, the liquid flows from the CVC tube into the locking joint 303, enters the positive pressure chamber 304 of the connecting tube 3, and finally enters the drainage tube body 1 from the connecting port 306, so as to maintain the continuity of the drainage process; and the CVC tube and the drainage tube body 1 can be directly connected, so as to simplify the drainage operation process, so that medical staff can complete the operation more quickly and improve work efficiency.

[0024] like Figure 1 As shown, the clamping mechanism 2 includes a sealing sheet 4 and a rubber pad 5. Two symmetrical sealing sheets 4 are installed on the top of the connecting tube 3. A rubber pad 5 is installed on the inner side of the sealing sheet 4. An elastic plastic 401 is provided at the connection between the bottom of the sealing sheet 4 and the connecting tube 3, and the sealing sheet 4 and the connecting tube 3 are set at an angle of 15 degrees.

[0025] Specifically, through this arrangement, after unpacking the drainage tube body 1, the two sealing sheets 4 can allow the internal locking joint 303 to leak out, making it convenient for medical staff to connect the locking joint 303 and the CVC tube together, and the elastic plastic 401 can ensure that the sealing sheet 4 is connected to the top of the connecting tube 3, and can also allow the sealing sheet 4 to expand outward to allow the locking joint 303 to leak out; when the rubber pad 5 is soft and wraps around the locking joint 303, it will not cause compression damage to the locking joint 303, and improves the sealing performance to prevent bacteria and other pathogens from entering.

[0026] like Figure 1 As shown, the outer side of the sealing sheet 4 and the inner wall of the rotating tube 6 are closely connected.

[0027] Specifically, through this arrangement, when the rotating tube 6 rotates upward, the sealing sheet 4 that expands outward on both sides of the connecting tube 3 will gradually converge toward the center of the connecting tube 3, so that the sealing sheet 4 and the rubber pad 5 inside the sealing sheet 4 will fix the locking joint 303 on the CVC tube. The tightness of the connection between the connecting tube 3 and the CVC tube can be adjusted by rotating the rotating tube 6. Medical staff can quickly connect and adjust the drainage tube body 1 and the CVC tube, thereby improving the work efficiency of medical staff.

[0028] like Figure 1 As shown, the rubber plug 7 is located at the bottom of the positive pressure chamber 304 , and the positive pressure chamber 304 is located above the rubber plug 7 and the inner wall thereof is fixedly connected to a limiting ring 305 .

[0029] Specifically, the rubber plug 7 is arranged to hold one end of the positive pressure chamber 304 , and the material of the rubber plug 7 here is medical rubber, which has good sealing and elasticity, and can fit tightly on the pipeline interface to ensure that the pressure in the positive pressure chamber 304 is stable.

[0030] like Figure 1 As shown, a leakage stopper 701 is provided at the center of the rubber plug 7.

[0031] Specifically, through this setting, the main function of the leak stop 701 is to ensure that under specific pressure conditions, liquid or gas can pass through smoothly, and can effectively prevent its flow under other conditions; when drainage is required, the liquid can flow out smoothly through the leak stop 701, and when drainage is not required, the leak stop 701 can effectively prevent the leakage of liquid or gas, which helps to maintain the closedness of the pipeline system and prevent the entry of external bacteria or contaminants.

[0032] like Figure 1 As shown, a fixing ring 302 is installed at the bottom of the outer side of the connecting tube 3 , and the diameter of the fixing ring 302 is larger than the diameter of the rotating tube 6 .

[0033] Specifically, by setting the fixing ring 302, the rotating tube 6 is fixed to the outside of the connecting tube 3 to prevent it from excessive rotation and falling off the connecting tube 3. When performing drainage operations, medical staff can quickly find the rotating tube 6 to install the drainage tube body 1, thereby improving the work efficiency of medical staff and preventing the CVC tube end from being exposed to the outside for too long.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drainage tube that is convenient for docking with a CVC tube, comprising a drainage tube body (1) and a connecting tube (3) connected to the top of the drainage tube body (1), characterized in that: The top of the connecting tube (3) is connected to a locking joint (303); the bottom of the connecting tube (3) is provided with a connecting port (306) connected to the drainage tube; the top of the connecting tube (3) is provided with a clamping mechanism (2); the outer side of the connecting tube (3) is fixedly connected to a threaded coil (301); the outer side of the connecting tube (3) is sleeved with a rotating tube (6); the threaded coil (301) and the inner wall of the rotating tube (6) are rotatably connected; a positive pressure chamber (304) is provided inside the connecting tube (3); a rubber plug (7) is installed in the positive pressure chamber (304).

2. A drainage tube that is convenient for docking with a CVC tube according to claim 1, characterized in that: The clamping mechanism (2) comprises a sealing sheet (4) and a rubber pad (5); two symmetrical sealing sheets (4) are installed on the top of the connecting tube (3); a rubber pad (5) is installed on the inner side of the sealing sheet (4); elastic plastic (401) is provided at the connection between the bottom of the sealing sheet (4) and the connecting tube (3); and the sealing sheet (4) and the connecting tube (3) are arranged at an angle of 15 degrees.

3. A drainage tube that is convenient for docking with a CVC tube according to claim 2, characterized in that: The outer side of the sealing sheet (4) and the inner wall of the rotating tube (6) are closely connected.

4. A drainage tube that is convenient for docking with a CVC tube according to claim 1, 2 or 3, characterized in that: The rubber plug (7) is located at the bottom of the positive pressure chamber (304), and the positive pressure chamber (304) is located above the rubber plug (7) and has a limit ring (305) fixedly connected to its inner wall.

5. A drainage tube that is convenient for docking with a CVC tube according to claim 1, 2 or 3, characterized in that: A leakage stopper (701) is provided at the center of the rubber plug (7).

6. A drainage tube that is convenient for docking with a CVC tube according to claim 4, characterized in that: A leakage stopper (701) is provided at the center of the rubber plug (7).

7. A drainage tube that is convenient for docking with a CVC tube according to claim 1, 2, 3 or 6, characterized in that: A fixing ring (302) is installed at the bottom of the outer side of the connecting tube (3), and the diameter of the fixing ring (302) is larger than the diameter of the rotating tube (6).

8. The drainage tube that is convenient for docking with a CVC tube according to claim 4, characterized in that: A fixing ring (302) is installed at the bottom of the outer side of the connecting tube (3), and the diameter of the fixing ring (302) is larger than the diameter of the rotating tube (6).

9. A drainage tube that is convenient for docking with a CVC tube according to claim 5, characterized in that: A fixing ring (302) is installed at the bottom of the outer side of the connecting tube (3), and the diameter of the fixing ring (302) is larger than the diameter of the rotating tube (6).

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