A liquid leakage-proof drainage tube

Abstract

The utility model discloses a kind of liquid leakage prevention drainage tubes, including catheter, connecting seat and administration tube;Wherein, the one end of catheter is equipped with connecting hole, drainage passage that is also equipped with with the communication of the connecting hole in the catheter and the communication of the administration passage with the connecting hole, connecting seat is equipped with for sealingly inserted into the plug connector in the connecting hole, the outer wall of the plug connector is equipped with radially outward bulge and is used to the first hook bulge portion of the inner wall sealing interference fit of the connecting hole, the outer wall of the first hook bulge portion gradually decreases along the direction of insertion connecting hole, the administration tube is connected in the plug connector and is used to sealingly inserted into the administration passage when the plug connector is inserted into the connecting hole. The utility model can improve the sealing property between connecting seat and catheter connection, can avoid liquid leakage, and further can avoid bringing pollution harm to patient, also can avoid bringing trouble to medical staff.

Description

Technical Field

[0001] This utility model relates to a leak-proof drainage tube. Background Technology

[0002] Currently, drainage tubes are medical devices used to guide exudate from the body to the outside and are widely used in various surgeries. One existing drainage tube includes a connector and a catheter. The connector has a drug delivery tube and a drainage connector, and the catheter has a drug delivery channel and a drainage channel. The drug delivery tube is inserted into the drug delivery channel of the catheter, and the drainage connector is inserted into the drainage channel of the catheter, thus connecting the connector and the catheter. For example, Chinese patents CN213031624U and CN216536329U both disclose the connection structure of the connector and catheter described above. However, in the prior art, the outer wall of the drainage connector is smooth and has a certain taper. This results in poor sealing performance and easy detachment of the drainage connector after it is inserted into the drainage channel, posing a risk of liquid leakage at the interface between the drainage connector and the drainage channel. This can cause contamination and harm to the patient and inconvenience to medical staff. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a leakage-proof drainage tube that can improve the sealing of the connection between the connector and the catheter, prevent liquid leakage, and thus avoid contamination and harm to patients and trouble to medical staff.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a leakage-proof drainage tube, including a conduit, a connecting seat, and a drug delivery tube;

[0005] One end of the catheter is provided with a connection hole, and the catheter is also provided with a drainage channel communicating with the connection hole and a drug delivery channel communicating with the connection hole;

[0006] The connector is provided with a plug for sealing insertion into the connection hole. The outer wall of the plug is provided with a first barb protrusion that protrudes radially outward and is used for sealing interference fit with the inner wall of the connection hole. The outer wall of the first barb protrusion gradually decreases in size along the direction of insertion into the connection hole.

[0007] The drug delivery tube is connected to the connector and is used to seal and fit into the drug delivery channel when the connector is inserted into the connection hole;

[0008] The connector has a medium channel, one end of which extends into the plug and is used to communicate with the drainage channel when the plug is inserted into the connection hole.

[0009] Furthermore, the catheter includes a connecting section and a drainage section. The connecting section is connected to one end of the drainage section. The connecting hole is located in the connecting section. Both the drainage channel and the drug delivery channel are located in the drainage section. A first channel wall is provided between the drug delivery channel and the drainage channel.

[0010] Furthermore, the catheter also includes a grooved section, and the connecting section, the drainage section, and the grooved section are connected in sequence;

[0011] The groove section is provided with a drug outlet channel, which is connected to one end of the drug delivery channel, and the other end of the drug delivery channel is sealed to the drug delivery tube;

[0012] The trench section is also provided with at least two drainage trenches. The drainage trenches are connected to one end of the drainage channel, and the other end of the drainage channel is connected to the medium channel. The drug outlet channel and the drainage trenches, as well as the adjacent drainage trenches, are provided with partition walls.

[0013] The pipe wall of the trench section is provided with a pipe wall groove that corresponds to and communicates with the corresponding drainage trench.

[0014] Furthermore, the leakage-proof drainage tube also includes a medicine holder and a first connecting tube;

[0015] The connector is provided with a first transition hole that communicates with the drug delivery tube;

[0016] One end of the first connecting pipe is connected to the connecting seat and communicates with the first transition hole;

[0017] The drug seat is connected to the other end of the first connecting tube.

[0018] Furthermore, the leak-proof drainage pipe also includes a water seat and a second connecting pipe;

[0019] The connector is provided with a second transition hole that communicates with the medium channel;

[0020] One end of the second connecting pipe is connected to the connecting seat and communicates with the second transition hole;

[0021] The water seat is connected to the other end of the second connecting pipe.

[0022] Furthermore, the leakage-proof drainage tube also includes an outlet tube, and the connector is also provided with a pipe joint. The outlet tube is sleeved on the pipe joint, and the medium channel extends into the pipe joint and communicates with the outlet tube.

[0023] Furthermore, the outer wall of the pipe joint is provided with a second barbed protrusion that protrudes radially outward and is used to seal and interfere with the inner wall of the outlet pipe. The outer wall of the second barbed protrusion gradually decreases in size along the direction of insertion into the outlet pipe.

[0024] Furthermore, a portion of the drug delivery tube is embedded within the connector.

[0025] Furthermore, the connector is provided with a mounting hole, and a second channel wall is provided between the mounting hole and the medium channel, and a portion of the drug delivery tube is embedded in the mounting hole.

[0026] By employing the above technical solution, after the connector is inserted into the connection hole, the medication tube is sealed and inserted into the medication channel, and the medium channel can communicate with the drainage channel. During medication administration, the medication flows from the medication tube into the medication channel. Because the medication tube and the medication channel are sealed together, the medication will not leak. During drainage, the exudate in the body flows from the drainage channel into the medium channel and then continues to drain outward. Because the outer wall of the connector is provided with a first barbed protrusion, the first barbed protrusion can form a sealing interference fit with the inner wall of the connection hole, thereby improving the sealing performance. Thus, when the exudate in the body flows from the drainage channel into the medium channel, leakage can be avoided. Therefore, the leak-proof drainage tube of this embodiment can improve the sealing between the connector and the catheter, thereby preventing liquid leakage, avoiding contamination and harm to the patient, and avoiding trouble for medical staff. In addition, the first barbed protrusion can hook onto the inner wall of the connection hole to prevent the connector from falling out of the connection hole, and the outer wall of the first barbed protrusion gradually decreases in size along the direction of insertion into the connection hole, making it easier to insert the connector into the connection hole. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the leak-proof drainage tube of this utility model;

[0028] Figure 2 This is an exploded view of the assembly of the conduit, connector, and outlet tube of this utility model.

[0029] Figure 3 This is a front sectional view of the leak-proof drainage tube of this utility model;

[0030] Figure 4 for Figure 3 Detailed view of part A in the middle;

[0031] Figure 5 This is an exploded sectional view of the conduit, connector, and outlet tube of this utility model.

[0032] Figure 6 for Figure 3Detailed view of section B in the middle;

[0033] Figure 7 for Figure 3 CC section view in the middle;

[0034] Figure 8 for Figure 3 DD section view in the middle;

[0035] Figure 9 for Figure 1 Detailed view of section E in the middle;

[0036] In the diagram: 1. Catheter; 2. Connector; 3. Drug delivery tube; 4. Connecting hole; 5. Drainage channel; 6. Drug delivery channel; 7. Connector; 8. First barbed protrusion; 9. Medium channel; 10. Connecting section; 11. Drainage section; 12. First channel wall; 13. Groove section; 14. Drug delivery channel; 15. Drainage groove; 16. Separator wall; 17. Tube wall groove; 18. Drug seat; 19. First connecting tube; 20. First transition hole; 21. Water seat; 22. Second connecting tube; 23. Second transition hole; 24. Outlet tube; 25. Connector; 26. Second barbed protrusion; 27. Second channel wall. Detailed Implementation

[0037] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0038] like Figures 1-7 As shown, a leak-proof drainage tube includes a catheter 1, a connector 2, and a drug delivery tube 3;

[0039] One end of the catheter 1 is provided with a connection hole 4, and the catheter 1 is also provided with a drainage channel 5 communicating with the connection hole 4 and a drug delivery channel 6 communicating with the connection hole 4.

[0040] The connector 2 is provided with a plug 7 for sealing insertion into the connector hole 4. The outer wall of the plug 7 is provided with a first barb protrusion 8 that protrudes radially outward and is used for sealing interference fit with the inner wall of the connector hole 4. The outer wall of the first barb protrusion 8 gradually decreases in size along the direction of insertion into the connector hole 4.

[0041] The drug delivery tube 3 is connected to the connector 7 and is used to seal the drug delivery channel 6 when the connector 7 is inserted into the connection hole 4;

[0042] The connector 2 is provided with a medium channel 9, one end of which extends into the plug 7 and is used to communicate with the drainage channel 5 when the plug 7 is inserted into the connector 4.

[0043] Specifically, after the connector 7 is inserted into the connecting hole 4, the drug delivery tube 3 is sealed and inserted into the drug delivery channel 6, and the medium channel 9 can communicate with the drainage channel 5. During drug delivery, the drug solution flows from the drug delivery tube 3 into the drug delivery channel 6. Since the drug delivery tube 3 and the drug delivery channel 6 are sealed together, the drug solution will not leak. During drainage, the exudate in the human body flows from the drainage channel 5 into the medium channel 9 and then continues to drain outward. Since the outer wall of the connector 7 is provided with a first barbed protrusion 8, the first barbed protrusion 8 can form a sealing interference fit with the inner wall of the connecting hole 4, thereby improving the sealing performance. Thus, when the exudate in the human body flows from the drainage channel 5 into the medium channel 9, leakage can be avoided. Therefore, the leak-proof drainage tube of this embodiment can improve the sealing between the connector 2 and the catheter 1, thereby avoiding liquid leakage, thus avoiding contamination and harm to the patient, and also avoiding trouble for medical staff. In addition, the first barbed protrusion 8 can hook onto the inner wall of the connection hole 4 to prevent the connector 7 from falling out of the connection hole 4, and the outer wall of the first barbed protrusion 8 gradually decreases in size along the direction of insertion into the connection hole 4, making it easier to insert the connector 7 into the connection hole 4.

[0044] like Figures 1-5 As shown, the catheter 1 may include a connecting section 10 and a drainage section 11. The connecting section 10 is connected to one end of the drainage section 11. The connecting hole 4 is provided in the connecting section 10. The drainage channel 5 and the drug delivery channel 6 are both provided in the drainage section 11. A first channel wall 12 is provided between the drug delivery channel 6 and the drainage channel 5. The drainage channel 5 is crescent-shaped.

[0045] like Figures 1-9 As shown, the catheter 1 may further include a grooved section 13, and the connecting section 10, the drainage section 11 and the grooved section 13 are connected in sequence;

[0046] The groove section 13 is provided with a drug outlet channel 14, which is connected to one end of the drug delivery channel 6, and the other end of the drug delivery channel 6 is sealed to the drug delivery tube 3;

[0047] The trench section 13 is also provided with at least two drainage trenches 15. The drainage trenches 15 are connected to one end of the drainage channel 5, and the other end of the drainage channel 5 is connected to the medium channel 9. The drug outlet channel 14 and the drainage trenches 15, as well as the adjacent drainage trenches 15, are respectively provided with partition walls 16.

[0048] The pipe wall of the groove section 13 is provided with a pipe wall groove 17 that corresponds to and communicates with the corresponding drainage groove 15; specifically, the pipe wall groove 17 corresponds one-to-one with the drainage groove 15, and there are 3 drainage grooves 15. Human exudate will collect from the pipe wall groove 17 into the drainage groove 15 and then flow into the drainage channel 5 along the drainage groove 15.

[0049] like Figures 1-5 As shown, the leak-proof drainage tube may further include a medicine holder 18 and a first connecting tube 19;

[0050] The connecting seat 2 is provided with a first transition hole 20 that communicates with the drug delivery tube 3;

[0051] One end of the first connecting pipe 19 is connected to the connecting seat 2 and communicates with the first transition hole;

[0052] The medication seat 18 is connected to the other end of the first connecting tube 19; specifically, the medication seat 18, the first connecting tube 19, the first transition hole 20, the drug delivery tube 3, the drug delivery channel 6 and the drug outlet channel 14 are connected in sequence to form a closed drug delivery channel, which can then be used to apply medication to the wound.

[0053] like Figures 1-5 As shown, the leak-proof drainage pipe may also include a water seat 21 and a second connecting pipe 22;

[0054] The connecting seat 2 is provided with a second transition hole 23 that communicates with the medium channel 9;

[0055] One end of the second connecting pipe 22 is connected to the connecting seat 2 and communicates with the second transition hole;

[0056] The water seat 21 is connected to the other end of the second connecting pipe 22. Specifically, the water seat 21, the second connecting pipe 22, the second transition hole 23, the medium channel 9, the drainage channel 5, the drainage groove 15, and the pipe wall groove 17 are sequentially connected to form a closed saline irrigation passage, which allows for irrigation of the wound by injecting saline. Both the medicine seat 18 and the water seat 21 are equipped with caps. The specific structures of the medicine seat 18 and the water seat 21 are existing technologies well known to those skilled in the art and will not be described in detail in this embodiment.

[0057] like Figures 1-5As shown, the leakage-proof drainage tube may further include an outlet tube 24. The connecting seat 2 is also provided with a pipe connector 25. The outlet tube 24 is sleeved on the pipe connector 25. The media channel 9 extends into the pipe connector 25 and communicates with the outlet tube 24. Specifically, a Rupert clamp can be connected to the outlet tube 24, and the outlet tube 24 can be connected to a negative pressure bag, negative pressure ball, or drainage bag, etc. The sequential connection of the pipe wall groove 17, drainage groove 15, drainage channel 5, media channel 9, and outlet tube 24 forms a complete drainage path, thereby enabling the smooth drainage and discharge of human exudate from the body.

[0058] like Figures 1-5 As shown, the outer wall of the pipe connector 25 may be provided with a second barb protrusion 26 that protrudes radially outward and is used to seal and interfere with the inner wall of the outlet pipe 24. The outer wall of the second barb protrusion 26 gradually decreases in size along the direction of insertion into the outlet pipe 24.

[0059] like Figures 2-5 As shown, a portion of the drug delivery tube 3 is embedded in the connector 7; specifically, the connector 7 has a mounting hole, and a second channel wall 27 is provided between the mounting hole and the medium channel 9, with a portion of the drug delivery tube 3 embedded in the mounting hole; in this embodiment, the drug delivery tube 3 can be a steel pipe, and the drug delivery tube 3 can be bonded to the mounting hole. Of course, in some embodiments, the drug delivery tube 3 can also be integrally injection molded with the connecting seat 2.

[0060] In summary, after the connector 7 is inserted into the connecting hole 4, the drug delivery tube 3 is sealed and inserted into the drug delivery channel 6, and the medium channel 9 can communicate with the drainage channel 5. During drug delivery, the drug solution flows from the drug delivery tube 3 into the drug delivery channel 6. Because the drug delivery tube 3 and the drug delivery channel 6 are sealed together, the drug solution will not leak. During drainage, the exudate in the human body flows from the drainage channel 5 into the medium channel 9 and then continues to drain outward. Because the outer wall of the connector 7 is provided with a first barbed protrusion 8, the first barbed protrusion 8 can form a sealing interference fit with the inner wall of the connecting hole 4, thereby improving the sealing performance. Thus, when the exudate in the human body flows from the drainage channel 5 into the medium channel 9, leakage can be avoided. Therefore, the leak-proof drainage tube of this embodiment can improve the sealing between the connector 2 and the catheter 1, thereby avoiding liquid leakage, thus avoiding contamination and harm to the patient, and also avoiding trouble for medical staff. In addition, the first barbed protrusion 8 can hook onto the inner wall of the connection hole 4 to prevent the connector 7 from falling out of the connection hole 4, and the outer wall of the first barbed protrusion 8 gradually decreases in size along the direction of insertion into the connection hole 4, making it easier to insert the connector 7 into the connection hole 4.

[0061] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A leak-proof drainage tube, characterized in that, Includes catheter (1), connector (2) and drug delivery tube (3); One end of the catheter (1) is provided with a connection hole (4), and the catheter (1) is also provided with a drainage channel (5) communicating with the connection hole (4) and a drug delivery channel (6) communicating with the connection hole (4). The connector (2) is provided with a plug (7) for sealing insertion into the connector (4). The outer wall of the plug (7) is provided with a first barb protrusion (8) that protrudes radially outward and is used for sealing interference fit with the inner wall of the connector (4). The outer wall of the first barb protrusion (8) gradually decreases in size along the direction of insertion into the connector (4). The drug delivery tube (3) is connected to the connector (7) and is used to seal the drug delivery channel (6) when the connector (7) is inserted into the connection hole (4); The connector (2) is provided with a medium channel (9), one end of which extends into the plug (7) and is used to communicate with the drainage channel (5) when the plug (7) is inserted into the connector (4).

2. The leak-proof drainage tube according to claim 1, characterized in that, The catheter (1) includes a connecting section (10) and a drainage section (11). The connecting section (10) is connected to one end of the drainage section (11). The connecting hole (4) is located in the connecting section (10). The drainage channel (5) and the drug delivery channel (6) are both located in the drainage section (11). A first channel wall (12) is provided between the drug delivery channel (6) and the drainage channel (5).

3. The leak-proof drainage tube according to claim 2, characterized in that, The catheter (1) further includes a grooved section (13), and the connecting section (10), the drainage section (11) and the grooved section (13) are connected in sequence; The groove section (13) is provided with a drug outlet channel (14), which is connected to one end of the drug delivery channel (6), and the other end of the drug delivery channel (6) is sealed to the drug delivery tube (3). The trench section (13) is also provided with at least two drainage trenches (15), the drainage trenches (15) are connected to one end of the drainage channel (5), the other end of the drainage channel (5) is connected to the medium channel (9), and partition walls (16) are provided between the drug outlet channel (14) and the drainage trenches (15) and between adjacent drainage trenches (15). The wall of the trench section (13) is provided with a wall groove (17) that corresponds to and is connected to the corresponding drainage trench (15).

4. The leak-proof drainage tube according to claim 1, characterized in that, It also includes a medicine seat (18) and a first connecting tube (19); The connecting seat (2) is provided with a first transition hole (20) that communicates with the drug delivery tube (3); One end of the first connecting pipe (19) is connected to the connecting seat (2) and communicates with the first transition hole; The drug seat (18) is connected to the other end of the first connecting tube (19).

5. The leak-proof drainage tube according to claim 1, characterized in that, It also includes a water seat (21) and a second connecting pipe (22); The connecting seat (2) is provided with a second transition hole (23) that communicates with the medium channel (9); One end of the second connecting pipe (22) is connected to the connecting seat (2) and communicates with the second transition hole; The water seat (21) is connected to the other end of the second connecting pipe (22).

6. The leak-proof drainage tube according to claim 1, characterized in that, It also includes an outlet tube (24), and the connector (2) is also provided with a pipe joint (25). The outlet tube (24) is sleeved on the pipe joint (25), and the medium channel (9) extends into the pipe joint (25) and communicates with the outlet tube (24).

7. The leak-proof drainage tube according to claim 6, characterized in that, The outer wall of the pipe joint (25) is provided with a second barb protrusion (26) that protrudes radially outward and is used to seal and interfere with the inner wall of the outlet pipe (24). The outer wall of the second barb protrusion (26) gradually decreases in size along the direction of insertion into the outlet pipe (24).

8. The leak-proof drainage tube according to claim 1, characterized in that, A portion of the drug delivery tube (3) is embedded in the connector (7).

9. The leak-proof drainage tube according to claim 8, characterized in that, The connector (7) is provided with an installation hole, and a second channel wall (27) is provided between the installation hole and the medium channel (9). A part of the drug delivery tube (3) is embedded in the installation hole.

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