Y-shaped double sleeve for negative pressure drainage

Abstract

The utility model discloses a Y-shaped double cannula for negative pressure drainage, which belongs to the technical field of medical instruments and comprises an outer catheter, an inner catheter is fixedly sleeved inside the outer catheter, the inner catheter penetrates into the outer catheter from the side surface of the outer catheter and penetrates out of one end of the outer catheter, a plurality of discharge holes are arranged outside the outer catheter, and the discharge holes are communicated with the outer catheter. An anti-backflow assembly is arranged at one end of the inner guide pipe; the anti-backflow assembly comprises a connecting pipe, the connecting pipe is movably connected into the inner catheter in a sleeved mode, the end, away from the connecting pipe, of the connecting pipe is fixedly connected with an anti-backflow pipe, and a plurality of anti-backflow valves are fixedly connected into the anti-backflow pipe. The inner catheter is sleeved with the outer catheter, so that drainage can be more sufficient and effective, postoperative complications are reduced, drainage, dosing and flushing are integrated, and more functions are achieved; meanwhile, the anti-backflow valve can be closed when the liquid in the inner catheter flows back, so that the internal organs of the patient are prevented from being impacted, and the patient is prevented from being injured.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a Y-shaped double sleeve for negative pressure drainage. Background Art

[0002] During abdominal surgery, due to the effects of surgical trauma and anesthetic drugs, the patient's respiratory function may be inhibited to a certain extent, resulting in increased sputum secretion or viscous sputum that is difficult to cough up; at this time, a suction tube is needed. By using a suction tube, sputum can be sucked out in time to ensure that the patient's breathing is unobstructed. At the same time, the suction tube can also prevent sputum from being retained in the abdominal cavity, avoiding infection and inflammation; and during the suction process, drug flushing is also required, and a cannula is also needed at this time.

[0003] For example, the single-lumen dual-channel integrated irrigation and drainage tube for the head and neck with application number CN204890758U provides a sustainable integrated irrigation and suction hose with a single lumen and dual channels, which is convenient for irrigation and drainage; while flushing, a central negative pressure device is used for drainage, which simplifies the clinical operation process and promotes disease recovery. However, during the operation, the inside of the suction tube needs to maintain negative pressure. When the liquid inside the suction tube refluxes due to equipment damage or human operating errors, it will impact the patient's organs, thereby causing secondary damage to the patient, posing certain safety hazards. Therefore, it is necessary to invent a Y-shaped double cannula for negative pressure drainage to solve the above problems. Utility Model Content

[0004] The utility model provides a Y-shaped double sleeve for negative pressure drainage, which can be closed when liquid in an inner catheter flows back through an anti-backflow valve, so as to solve the problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a Y-shaped double sleeve for negative pressure drainage, including an outer catheter, the inner catheter is fixedly sleeved inside the outer catheter, and the inner catheter is inserted from the side of the outer catheter and passes out from one end of the outer catheter, the outer side of the outer catheter is provided with a plurality of discharge holes, and one end of the inner catheter is provided with an anti-backflow component; the anti-backflow component includes a connecting tube, and the connecting tube is movably sleeved inside the inner catheter, the end of the connecting tube away from the connecting tube is fixedly connected to the anti-backflow tube, and the interior of the anti-backflow tube is fixedly connected to a plurality of anti-backflow valves.

[0006] Furthermore, the outer portion of the outer conduit is movably sleeved with a movable mounting cover, and the inner thread of the movable mounting cover is sleeved with a positive pressure pump.

[0007] Furthermore, one end of the backflow prevention pipe away from the connecting pipe is fixedly connected with a fixed installation cover, and the internal thread of the fixed installation cover is sleeved with a negative pressure pump.

[0008] Furthermore, one end of the outer conduit is fixedly connected with a rubber ring, and the rubber ring is located between the outer conduit and the output end of the positive pressure pump.

[0009] Furthermore, a sealing ring is fixedly connected to the interior of the fixed installation cover, and the sealing ring fits with the input port of the negative pressure pump.

[0010] Furthermore, an annular groove is provided on the outside of the connecting pipe, and a fixing hoop is movably sleeved on the outside of the inner conduit, and the fixing hoop is matched with the annular groove.

[0011] Technical effects and advantages of the utility model:

[0012] 1. Install the movable mounting cover on the input end of the positive pressure pump so that the rubber ring is squeezed, and then install the fixed mounting cover on the input end of the negative pressure pump so that the sealing ring is squeezed. Then, the inner catheter is movably sleeved on the outside of the connecting pipe, and then the fixing hoop is fixed on the outside of the inner catheter to achieve quick assembly and easy disassembly.

[0013] 2. By starting the negative pressure pump, negative pressure can be formed inside the inner catheter, so that the patient's sputum can be sucked out. At the same time, by starting the positive pressure pump, drugs can be input into the outer catheter and finally delivered to the patient's surgical site through the discharge hole, making the drainage more sufficient and effective, reducing postoperative complications, and realizing drainage, drug administration and flushing in one, which is more functional.

[0014] 3. The anti-backflow valve can be closed when the liquid in the inner catheter flows back, thereby effectively avoiding impact on the patient's internal organs and preventing damage to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the structure of the backflow prevention component of the utility model.

[0017] Figure 3 It is a schematic diagram of the structure of the rubber ring and the movable mounting cover of the utility model.

[0018] Figure 4 for Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0019] In the figure: 1. outer catheter; 2. inner catheter; 3. positive pressure pump; 4. negative pressure pump; 5. anti-backflow pipe; 6. anti-backflow valve; 7. connecting pipe; 8. ring groove; 9. fixed installation cover; 10. fixing hoop; 11. rubber ring; 12. movable installation cover; 13. discharge hole; 14. sealing ring. DETAILED DESCRIPTION

[0020] Refer to the instruction manual Figures 1 to 4 The utility model provides a Y-shaped double sleeve for negative pressure drainage, including an outer catheter 1, an inner catheter 2 is fixedly sleeved inside the outer catheter 1, and the inner catheter 2 penetrates from the side of the outer catheter 1 and passes out from one end of the outer catheter 1, and a plurality of discharge holes 13 are provided on the outside of the outer catheter 1, and an anti-backflow component is provided at one end of the inner catheter 2. By sleeve-fitting the inner catheter 2 inside the outer catheter 1, the drainage can be made more sufficient and effective, and postoperative complications can be reduced. In addition, drainage, medication and flushing are integrated, and more functional. In addition, by providing an anti-backflow component, the backflow of liquid in the inner catheter 2 can be avoided, thereby avoiding damage to the patient.

[0021] The anti-backflow assembly includes a connecting tube 7, and the connecting tube 7 is movably sleeved inside the inner catheter 2, and an anti-backflow tube 5 is fixedly connected to one end of the connecting tube 7 away from the connecting tube 7, and a plurality of anti-backflow valves 6 are fixedly connected inside the anti-backflow tube 5. The anti-backflow valves 6 can be closed when the liquid in the inner catheter 2 flows back, thereby effectively avoiding impact on the patient's internal organs and preventing accidents.

[0022] In the above technical solution, the outer tube 1 is movably sleeved with a movable mounting cover 12, and the inner thread of the movable mounting cover 12 is sleeved with a positive pressure pump 3. The movable mounting cover 12 can be used to quickly install the outer tube 1 on the output end of the positive pressure pump 3.

[0023] In the above technical solution, the end of the anti-backflow pipe 5 away from the connecting pipe 7 is fixedly connected with a fixed mounting cover 9, and the internal thread of the fixed mounting cover 9 is sleeved with the negative pressure pump 4. By setting the fixed mounting cover 9, the anti-backflow pipe 5 can be quickly installed on the input end of the negative pressure pump 4.

[0024] In the above technical solution, a rubber ring 11 is fixedly connected to one end of the outer conduit 1, and the rubber ring 11 is located between the outer conduit 1 and the output end of the positive pressure pump 3. The rubber ring 11 can improve the sealing performance of the connection between the outer conduit 1 and the output end of the positive pressure pump 3.

[0025] In the above technical solution, a sealing ring 14 is fixedly connected inside the fixed installation cover 9, and the sealing ring 14 fits the input port of the negative pressure pump 4. The sealing ring 14 can improve the sealing performance of the connection between the anti-backflow pipe 5 and the input end of the negative pressure pump 4.

[0026] In the above technical solution, an annular groove 8 is provided on the outside of the connecting pipe 7, and a fixing hoop 10 is movably sleeved on the outside of the inner conduit 2, and the fixing hoop 10 is adapted to the annular groove 8. The inner conduit 2 can be fixed by the fixing hoop 10 to prevent the inner conduit 2 from falling off, and at the same time, the fixing hoop 10 can be placed by the annular groove 8, so that the fixing hoop 10 can fix the inner conduit 2 more firmly.

[0027] The Y-shaped double sleeve for negative pressure drainage provided by the utility model has the following working process when in use: when a surgical abdominal operation is required, firstly, the movable mounting cover 12 is mounted on the input end of the positive pressure pump 3, so that the rubber ring 11 is squeezed, thereby improving the sealing performance; then, the fixed mounting cover 9 is mounted on the input end of the negative pressure pump 4, so that the sealing ring 14 is squeezed, thereby improving the sealing performance. Then, the inner catheter 2 is movably sleeved on the outside of the connecting tube 7, and then the fixing hoop 10 is fixed on the outside of the inner catheter 2, so as to achieve rapid assembly and facilitate disassembly.

[0028] Afterwards, negative pressure can be formed inside the inner catheter 2 by starting the negative pressure pump 4, so that the patient's sputum and the like can be sucked out. At the same time, drugs and the like can be input into the outer catheter 1 by starting the positive pressure pump 3, and finally delivered to the patient's surgical site through the discharge hole 13, so that the drainage is more sufficient and effective, and postoperative complications are reduced; and drainage, drug administration and flushing are integrated into one, which is more functional.

[0029] When the liquid in the inner catheter 2 suddenly flows back, the anti-backflow valve 6 can be closed when the liquid in the inner catheter 2 flows back, thereby effectively avoiding impact on the patient's internal organs and preventing damage to the patient.

Claims

1. A Y-shaped double cannula for negative pressure drainage, comprising an outer catheter (1), characterized in that: The inner tube (2) is fixedly sleeved inside the outer tube (1), and the inner tube (2) penetrates from the side of the outer tube (1) and exits from one end of the outer tube (1). The outer tube (1) is provided with a plurality of discharge holes (13). One end of the inner tube (2) is provided with an anti-backflow component. The anti-backflow component comprises a connecting tube (7), and the connecting tube (7) is movably sleeved inside the inner tube (2). An anti-backflow tube (5) is fixedly connected to one end of the connecting tube (7) away from the connecting tube (7), and a plurality of anti-backflow valves (6) are fixedly connected to the inside of the anti-backflow tube (5).

2. A Y-shaped double cannula for negative pressure drainage according to claim 1, characterized in that: The outer portion of the outer conduit (1) is movably sleeved with a movable mounting cover (12), and the inner thread of the movable mounting cover (12) is sleeved with a positive pressure pump (3).

3. A Y-shaped double cannula for negative pressure drainage according to claim 1, characterized in that: One end of the backflow prevention pipe (5) away from the connecting pipe (7) is fixedly connected to a fixed installation cover (9), and the internal thread of the fixed installation cover (9) is sleeved with a negative pressure pump (4).

4. A Y-shaped double cannula for negative pressure drainage according to claim 2, characterized in that: One end of the outer conduit (1) is fixedly connected to a rubber ring (11), and the rubber ring (11) is located between the outer conduit (1) and the output end of the positive pressure pump (3).

5. The Y-shaped double cannula for negative pressure drainage according to claim 3, characterized in that: A sealing ring (14) is fixedly connected to the interior of the fixed installation cover (9), and the sealing ring (14) fits closely to the input port of the negative pressure pump (4).

6. A Y-shaped double cannula for negative pressure drainage according to claim 1, characterized in that: The outside of the connecting pipe (7) is provided with an annular groove (8), and the outside of the inner conduit (2) is movably sleeved with a fixing hoop (10), and the fixing hoop (10) is matched with the annular groove (8).

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