Double-cavity tube with negative pressure drainage function

Abstract

The utility model relates to the technical field of medical instruments, and provides a double-cavity tube with a negative pressure drainage function, which comprises a catheter, a flushing tube and a drainage tube are inserted into the catheter, the end part of the catheter is provided with a flushing port communicated with the flushing tube and the drainage tube, and the drainage tube is filled with a cotton sliver and is connected with a negative pressure device. On the basis, drainage can be performed while a surgical wound is flushed, so that the surgical efficiency and effect are improved.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a double-lumen tube with a negative pressure drainage function. Background Art

[0002] In some scenarios, such as cardiac surgery and neurosurgery, these surgeries require extremely high cleanliness of the surgical area. Double-lumen tubes with negative pressure drainage function can ensure a clear surgical field of view and reduce surgical risks; such as double-lumen decompression abortion, this technology combines the dual advantages of visual painless abortion and double-lumen decompression suction tube, effectively reducing the uterine cavity pressure during surgery and reducing the phenomenon of uterine blood reflux, thereby reducing the incidence of postoperative complications; such as when complications such as anastomotic fistula or abdominal infection occur, the use of double-lumen tubes with negative pressure drainage function can perform thorough abdominal lavage and sufficient and effective drainage in the early stage, control the source of infection, and promote fistula healing.

[0003] Therefore, the present application studies a double-lumen tube with a negative pressure drainage function, which can perform drainage while flushing the surgical wound, thereby improving the efficiency and effect of the operation. Utility Model Content

[0004] In order to be able to perform drainage while flushing the surgical wound, thereby improving the efficiency and effect of the operation, the present application provides a double-lumen tube with a negative pressure drainage function.

[0005] The present application provides a double-lumen tube with negative pressure drainage function, which adopts the following technical solutions:

[0006] A double-lumen tube with negative pressure drainage function includes a catheter, an irrigation tube and a drainage tube are inserted into the catheter, an irrigation port is opened at the end of the catheter and is interconnected with the irrigation tube and the drainage tube, the drainage tube is filled with cotton slivers and is connected to a negative pressure device.

[0007] By adopting the above technical solution, during the cleaning of the surgical wound, the flushing tube transports the flushing liquid to the flushing port to clean the target area, the cotton sliver absorbs and filters the pollutants in the flushing liquid, and the residual liquid, pollutants, etc. are sucked out through the negative pressure device, thereby promoting the rapid discharge of liquid and pollutants in the drainage tube. Therefore, the surgical wound can be flushed and drained at the same time, thereby improving the efficiency and effect of the operation.

[0008] Optionally, a mounting joint is further included, wherein the mounting joint is connected to the catheter, and the mounting joint is respectively provided with a flushing cavity and a drainage cavity for inserting the flushing tube and the drainage tube.

[0009] Optionally, a one-way valve is provided at the end of the flushing chamber.

[0010] By adopting the above technical solution, a one-way valve is set at the end of the flushing cavity, which can ensure that the flushing liquid can only enter the surgical area or wound in one direction, effectively preventing the flushing liquid from flowing back into the lumen or flushing equipment after the delivery is stopped, thereby reducing the risk of contamination; when the flushing liquid enters the flushing cavity through the one-way valve at a certain pressure, the one-way valve will quickly open and allow the liquid to pass through; and when the flushing stops, the one-way valve will immediately close to prevent the liquid from flowing back, thereby improving the flushing efficiency.

[0011] Optionally, the one-way valve includes a valve body, a valve core and an elastic member, the valve core is slidably connected to the valve body, the elastic member is sleeved on the valve core, and one end is fixed to the valve body, a connecting port is opened in the valve body, and an injection port is opened through the interior of the valve body; when the valve core is not subjected to force, the elastic member abuts against the valve core, and the valve core blocks the connecting port; when the valve core is subjected to force, the valve core compresses the elastic member, and the valve core opens the connecting port.

[0012] Optionally, the valve core includes a sliding portion and an abutting portion, the sliding portion and the abutting portion are arranged vertically, and the elastic part is sleeved on the sliding portion; when the valve core is not subjected to force, the abutting portion blocks the connecting port; when the valve core is subjected to force, the abutting portion compresses the elastic part, and the abutting portion opens the connecting port.

[0013] Optionally, the sliding portion is provided with a sealing gasket, which is arranged on one side of the abutting portion. When the valve core is not subjected to force, the sealing gasket blocks the communication port; when the valve core is subjected to force, the sealing gasket opens the communication port.

[0014] Optionally, the elastic member is a spring.

[0015] Optionally, one end of the sliding portion is connected to a limiting portion, and the limiting portion abuts against and is limited to the communicating port.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. During surgical wound cleaning, the irrigation tube delivers the irrigation fluid to the irrigation port to clean the target area. The cotton strips absorb and filter the contaminants in the irrigation fluid. The negative pressure device sucks out the residual liquid and contaminants, promoting the rapid discharge of the liquid and contaminants in the drainage tube. Therefore, the surgical wound can be rinsed and drained at the same time, thereby improving the efficiency and effect of the operation.

[0018] 2. A one-way valve is installed at the end of the irrigation chamber to ensure that the irrigation fluid can only enter the surgical area or wound in one direction, effectively preventing the irrigation fluid from flowing back into the lumen or irrigation equipment after the irrigation stops, reducing the risk of contamination. When the irrigation fluid enters the irrigation chamber through the one-way valve at a certain pressure, the one-way valve will quickly open and allow the liquid to pass through. When the irrigation stops, the one-way valve will immediately close to prevent the liquid from flowing back, improving the irrigation efficiency.

[0019] 3. The installation connector can facilitate the installation and removal of the double-lumen tube with negative pressure drainage function. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the interior of a double-lumen tube with negative pressure drainage function according to an embodiment of the present application;

[0021] Figure 2 It is a cross-sectional schematic diagram of a one-way valve in a double-lumen tube with negative pressure drainage function in an embodiment of the present application.

[0022] Figure numerals: 1. catheter; 2. flushing tube; 3. drainage tube; 4. flushing port; 5. mounting joint; 6. flushing chamber; 7. drainage chamber; 8. one-way valve; 81. valve body; 82. valve core; 821. sliding part; 822. abutting part; 83. elastic member; 84. valve cover; 9. connecting port; 10. injection port; 11. sealing gasket; 12. limiting part. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-2 This application is described in further detail.

[0024] The present application discloses a double-lumen tube with negative pressure drainage function. Figure 1 The double-lumen tube with negative pressure drainage function includes a catheter 1, into which a flushing tube 2 and a drainage tube 3 are inserted. The surgical wound is flushed with flushing fluid through the flushing tube 2, and the drainage tube 3 absorbs and discharges residual fluid, pollutants, etc. The end of the catheter 1 is provided with a flushing port 4 that is interconnected with the flushing tube 2 and the drainage tube 3. The surgical wound is flushed through the flushing port 4. The drainage tube 3 is filled with cotton slivers and connected to a negative pressure device. The cotton slivers absorb and filter pollutants in the flushing fluid, and the residual fluid, pollutants, etc. are sucked out through the negative pressure device, promoting the rapid discharge of the liquid and pollutants in the drainage tube 3. Therefore, the surgical wound can be flushed and drained at the same time, thereby improving the efficiency and effect of the operation.

[0025] In some embodiments, the double-lumen tube with negative pressure drainage function also includes a mounting joint 5, which is connected to the catheter 1. The mounting joint 5 is respectively provided with a flushing cavity 6 and a drainage cavity 7 for inserting the flushing tube 2 and the drainage tube 3. The flushing tube 2 and the drainage tube 3 can be conveniently fixed through the mounting joint 5.

[0026] In some embodiments, a one-way valve 8 is provided at the end of the irrigation cavity 6. The one-way valve 8 can prevent the backflow of the irrigation liquid, so that the wound can be better rinsed.

[0027] Reference Figure 2 In some embodiments, the one-way valve 8 includes a valve body 81, a valve core 82, and an elastic member 83. The valve core 82 is slidably connected to the valve body 81. The elastic member 83 is sleeved on the valve core 82 and fixed at one end within the valve body 81. A communication port 9 is defined within the valve body 81, and an injection port 10 is defined through the interior of the valve body 81. When the valve core 82 is unloaded, the elastic member 83 abuts the valve core 82, and the valve core 82 blocks the communication port 9, preventing liquid from being injected. When the valve core 82 is loaded, the valve core 82 compresses the elastic member 83, opening the communication port 9. The communication port 9 is now connected to the injection port 10, and the flushing liquid flows from the communication port 9 through the injection port 10 into the flushing tube 2. In some embodiments, the elastic member 83 is a spring.

[0028] In some embodiments, the valve core 82 includes a sliding portion 821 and an abutting portion 822, the sliding portion 821 and the abutting portion 822 are vertically arranged and integrally formed, and the elastic member 83 is sleeved on the sliding portion 821, and one end abuts against the abutting portion 822; when the valve core 82 is not subjected to force, the abutting portion 822 blocks the connecting port 9, and liquid cannot be injected at this time; when the valve core 82 is subjected to force, the abutting portion 822 compresses the elastic member 83, and the elastic member 83 can be stably compressed by the abutting portion 822, and the abutting portion 822 opens the connecting port 9, and at this time, liquid flows from the connecting port 9 along the peripheral side of the abutting member into the injection port 10.

[0029] In some embodiments, the sliding portion 821 is provided with a sealing gasket 11, which can better seal the communication port 9. The sealing gasket 11 is provided on one side of the abutting portion 822. When the valve core 82 is not subjected to force, the sealing gasket 11 seals the communication port 9; when the valve core 82 is subjected to force, the sealing gasket 11 opens the communication port 9. Figure 1 In this embodiment, the one-way valve 8 further includes a valve cover 84 , which is mounted on the mounting joint 5 and connected to the flushing chamber 6 . The one-way valve 8 is connected to the mounting joint 5 via the one-way valve cover 8 .

[0030] Continue to refer to Figure 2 In some embodiments, one end of the sliding portion 821 is integrally connected to the limiting portion 12, and the limiting portion 12 abuts against the communicating port 9. When the elastic member 83 is over-compressed, the valve core 82 can be prevented from entering the communicating port 9.

[0031] The implementation principle of a double-lumen tube with negative pressure drainage function in an embodiment of the present application is as follows: during cleaning of a surgical wound, the flushing tube 2 delivers flushing liquid to the flushing port 4 to clean the target area, the cotton sliver absorbs and filters the pollutants in the flushing liquid, and the residual liquid, pollutants, etc. are sucked out through the negative pressure device, thereby promoting the rapid discharge of liquid and pollutants in the drainage tube 3. Therefore, drainage can be performed while flushing the surgical wound, thereby improving the efficiency and effect of the operation.

[0032] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A double-lumen tube with negative pressure drainage function, characterized by: The invention comprises a catheter, wherein a flushing tube and a drainage tube are inserted into the catheter, a flushing port which is mutually connected with the flushing tube and the drainage tube is opened at the end of the catheter, the drainage tube is filled with cotton strips and is connected to a negative pressure device.

2. The double-lumen tube with negative pressure drainage function according to claim 1, characterized in that: It also includes a mounting joint, which is connected to the catheter. The mounting joint is respectively provided with a flushing cavity and a drainage cavity for inserting the flushing tube and the drainage tube.

3. The double-lumen tube with negative pressure drainage function according to claim 2, characterized in that: A one-way valve is provided at the end of the flushing cavity.

4. The double-lumen tube with negative pressure drainage function according to claim 3, characterized in that: The one-way valve includes a valve body, a valve core and an elastic member, the valve core is slidably connected to the valve body, the elastic member is sleeved on the valve core, and one end is fixed in the valve body, a connecting port is opened in the valve body, and an injection port is opened through the interior of the valve body; when the valve core is not subjected to force, the elastic member abuts against the valve core, and the valve core blocks the connecting port; when the valve core is subjected to force, the valve core compresses the elastic member, and the valve core opens the connecting port.

5. The double-lumen tube with negative pressure drainage function according to claim 4, characterized in that: The valve core includes a sliding portion and an abutting portion, the sliding portion and the abutting portion are arranged perpendicularly, and the elastic member is sleeved on the sliding portion; when the valve core is not subjected to force, the abutting portion blocks the communication port; when the valve core is subjected to force, the abutting portion compresses the elastic member, and the abutting portion opens the communication port.

6. The double-lumen tube with negative pressure drainage function according to claim 5, characterized in that: The sliding portion is sleeved with a sealing gasket, which is arranged on one side of the abutting portion. When the valve core is not subjected to force, the sealing gasket blocks the communication port; when the valve core is subjected to force, the sealing gasket opens the communication port.

7. The double-lumen tube with negative pressure drainage function according to claim 4, characterized in that: The elastic member is a spring.

8. The double-lumen tube with negative pressure drainage function according to claim 5, characterized in that: One end of the sliding portion is connected to a limiting portion, and the limiting portion abuts against and is limited to the communicating port.

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