Separating type double-cavity drainage tube connector

Abstract

The utility model discloses a separated type double-cavity drainage tube connector which comprises a connector body, a drainage tube fitting, a flow receiving tube and a flushing tube. According to the drainage tube, a separated structural design is adopted, the maximum outer diameter of the joint of the section of the drainage tube entering a human body is controlled within 10 mm, the drainage tube and the drainage joint are pre-installed in place before leaving a factory, the flow receiving tube and the flushing tube are both connected to the outer side of the flow receiving joint and are communicated with the injection hole and the drainage channel respectively, and after the drainage tube is placed, the drainage tube and the flushing tube are communicated with the injection hole and the drainage channel respectively. After the trocar is removed, the flow receiving connector is combined with the drainage connector, the injection hole is inserted into the flushing hole, the drainage channel is in butt joint with the drainage hole, and finally the nut is connected with the external thread till the nut abuts against the outer surface wall of the partition valve, so that fixation of the flow receiving connector and the drainage connector is achieved, and pipelines of the drainage end and the flow receiving end are assembled in a factory. In a clinical operation, only the two parts need to be combined together, so that the operation is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage pipe joints, in particular to a separated double-cavity drainage pipe joint. Background Art

[0002] The double-lumen drainage tube connector is an instrument accessory used in the medical field, which is usually used to connect the double-lumen drainage tube and other medical equipment.

[0003] Chinese patent publication number CN209333007U, publication date 20190903, discloses a double-lumen drainage tube joint for modifying a single-lumen drainage tube in use, including a straight tube joint and a side tube joint connected to each other in a "卜" shape, the side tube joint is a double-sleeve structure, the inner sleeve cavity of the side tube joint is connected to the tube cavity of the straight tube joint, the outer sleeve cavity of the side tube joint is filled with waterproof filter material, the outer end of the outer sleeve cavity is provided with a cover body and the cover body is provided with air holes, the inner end is the tube body of the straight tube joint and the corresponding tube body is provided with air holes.

[0004] In the existing common laparoscopic minimally invasive surgery, the general process is: incision - placement of the poke card - scalpel surgery - completion of the surgery, removal of the scalpel - placement of the drainage tube at the surgical site - removal of the poke card - fixing the drainage tube - drainage of the exudate. In this process, since the drainage tube is placed first and then the poke card is removed, the inner diameter of the poke card is limited in this process, and there is a strict limit on the maximum outer diameter of the drainage tube (in common minimally invasive surgery, the inner diameter of the poke card is 10.5mm). However, the adapters of the double-lumen drainage tubes on the current market are all larger than 10.5mm and cannot pass through the poke card. Therefore, it is necessary to assemble the entire pipeline device after the drainage tube is placed. In addition, due to the special structure of the double-lumen tube, it is more difficult to assemble. Improper assembly is also likely to cause liquid leakage at the joint, which is likely to cause cross infection, delaying the patient's recovery time, and causing unnecessary economic losses. Therefore, it is urgent to propose a corresponding separate double-lumen drainage tube joint to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems and to provide a separate double-lumen drainage tube joint.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A separable double - cavity drainage tube connector, comprising a connector body, a drainage tube fitting, a drainage tube and a flushing tube. The connector body includes a drainage connector, a flow - receiving connector and a connection component for connecting the drainage connector and the flow - receiving connector. The drainage connector is fixedly connected to the drainage tube fitting through a partition valve, and a flushing hole and a drainage hole are formed inside the drainage connector. An injection hole and a drainage channel that are respectively communicated with the flushing hole and the drainage hole are arranged inside the flow - receiving connector, and the injection hole and the drainage channel are respectively communicated with the flushing tube and the drainage tube.

[0008] Preferably, the connection component includes a nut. The inner surface wall of the nut is screwed to the outer surface wall of the flow - receiving connector through an external thread, and the inner surface wall of the nut abuts against the outer surface wall of the partition valve.

[0009] Preferably, multiple groups of partition valves are provided, and the multiple groups of partition valves are annularly distributed.

[0010] Preferably, the outer surface walls of the multiple groups of partition valves all abut against the inner surface wall of the nut.

[0011] Preferably, sealing rings are sleeved on the outer surface walls of the flow - receiving connector and the drainage connector, and the outer surface walls of the two sealing rings both abut against the inner surface wall of the nut.

[0012] Preferably, a step is formed between the drainage channel and the injection hole. The open end of the drainage connector abuts against the step. The injection hole is inserted into the flushing hole, and the drainage channel is in butt - joint connection with the drainage hole.

[0013] In summary, due to the adoption of the above - mentioned technical solutions, the beneficial effects of the present utility model are as follows:

[0014] 1. In this application, a separable structure design is adopted. The maximum outer diameter of the connector of the drainage tube section entering the human body is controlled within 10 mm. The drainage tube and the drainage connector are pre - assembled in place before leaving the factory. The drainage tube and the flushing tube are both connected to the outside of the flow - receiving connector, and the drainage tube and the flushing tube are respectively communicated with the injection hole and the drainage channel. After the drainage tube is placed and the trocar is removed, the flow - receiving connector and the drainage connector are combined. The injection hole is inserted into the flushing hole, the drainage channel is in butt - joint with the drainage hole, and finally the nut is connected to the external thread until the nut abuts against the outer surface wall of the partition valve, so as to realize the fixation of the flow - receiving connector and the drainage connector. The pipelines at the drainage end and the flow - receiving end are assembled in the factory. During the clinical operation, only the two parts need to be combined together, and the operation is simple.

[0015] 2. In this application, after the flow - receiving connector and the drainage connector are fixed by the nut, the sealing rings on the outer surface walls of the drainage connector and the flow - receiving connector will abut against the inner surface wall of the nut, so as to ensure the airtightness between the drainage connector, the flow - receiving connector and the nut, thereby improving the stability of the use of the separable double - cavity drainage tube connector. Description of the Drawings

[0016] Figure 1 shows a schematic diagram of the overall structure provided according to an embodiment of the present invention;

[0017] Figure 2 shows a schematic diagram of the nut structure provided according to an embodiment of the present invention;

[0018] Figure 3 shows a schematic diagram of the structure of the flushing hole and the drainage hole provided according to an embodiment of the present invention;

[0019] Figure 4 shows a schematic diagram of the drainage joint structure provided according to an embodiment of the present invention;

[0020] Figure 5 shows a schematic diagram of the current-receiving joint structure provided according to an embodiment of the present invention.

[0021] Legend:

[0022] 1. Drainage pipe fitting; 2. Nut; 3. Current-receiving pipe; 4. Flushing pipe; 5. Current-receiving joint; 6. Drainage joint; 7. Sealing ring; 8. Injection hole; 9. Flushing hole; 10. Septum; 11. External thread; 12. Drainage hole; 13. Drainage channel. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-5 , the present invention provides a technical solution:

[0025] A separable double-chamber drainage tube joint includes a joint body, a drainage pipe fitting 1, a current-receiving pipe 3 and a flushing pipe 4. The joint body includes a current-receiving joint 5, a drainage joint 6 and a connection component for connecting the current-receiving joint 5 and the drainage joint 6. The drainage joint 6 is fixedly connected to the drainage pipe fitting 1 through a septum 10, and flushing holes 9 and drainage holes 12 are provided inside the drainage joint 6. An injection hole 8 and a drainage channel 13 respectively communicating with the flushing holes 9 and the drainage holes 12 are provided inside the current-receiving joint 5, and the injection hole 8 and the drainage channel 13 are respectively communicated with the flushing pipe 4 and the current-receiving pipe 3;

[0026] Adopting a split structure design, the maximum outer diameter of the joint of the drainage pipe fitting 1 entering the human body is controlled within 10 mm. The drainage pipe fitting 1 and the drainage joint 6 are pre-assembled in place before leaving the factory. The flow receiving pipe 3 and the flushing pipe 4 are both connected to the outside of the flow receiving joint 5, and the flow receiving pipe 3 and the flushing pipe 4 are respectively communicated with the injection hole 8 and the drainage channel 13. After the drainage pipe fitting 1 is placed and the trocar is removed, the flow receiving joint 5 and the drainage joint 6 are combined. The injection hole 8 is inserted into the inside of the flushing hole 9, and the drainage channel 13 is docked with the drainage hole 12. Finally, the nut 2 is connected to the external thread 11 until the nut 2 abuts against the outer wall of the septum 10, thereby realizing the fixation of the flow receiving joint 5 and the drainage joint 6. The pipelines at the drainage end and the flow receiving end are assembled in the factory. During clinical surgery, only these two parts need to be combined together, and the operation is simple.

[0027] Specifically, as Figure 2 shown in Figure 4 Figure, the connection assembly includes a nut 2. The inner wall of the nut 2 is screwed and connected to the outer wall of the flow receiving joint 5 through the external thread 11, and the inner wall of the nut 2 abuts against the outer wall of the septum 10. The nut 2 is connected to the external thread 11 until the nut 2 abuts against the outer wall of the septum 10, thereby realizing the fixation of the flow receiving joint 5 and the drainage joint 6. Multiple groups of septa 10 are provided, and the multiple groups of septa 10 are annularly distributed, thereby ensuring the stability of the connection between the drainage pipe fitting 1 and the drainage joint 6. The outer walls of the multiple groups of septa 10 all abut against the inner wall of the nut 2, thereby ensuring the stability of the cooperation between the nut 2 and the drainage joint 6.

[0028] Specifically, as Figure 2 shown in Figure 3 Figure, sealing rings 7 are sleeved on the outer walls of the flow receiving joint 5 and the drainage joint 6, and the outer walls of the two groups of sealing rings 7 both abut against the inner wall of the nut 2. After the flow receiving joint 5 and the drainage joint 6 are fixed by the nut 2, the sealing rings 7 on the outer walls of the drainage joint 6 and the flow receiving joint 5 will abut against the inner wall of the nut 2, thereby ensuring the airtightness between the drainage joint 6, the flow receiving joint 5 and the nut 2, and thus improving the stability of the use of the split double-chamber drainage pipe joint.

[0029] Specifically, as Figure 1 shown in Figure 2 Figure, a step is formed between the drainage channel 13 and the injection hole 8. The open end of the drainage joint 6 abuts against the step. The injection hole 8 is inserted into the inside of the flushing hole 9, and the drainage channel 13 is connected in alignment with the drainage hole 12 to ensure the conductivity between the flow receiving joint 5 and the drainage joint 6.

[0030] Working principle: The detachable structure design is adopted. The maximum outer diameter of the joint of the drainage pipe fitting 1 entering the human body is controlled within 10 mm. The drainage pipe fitting 1 and the drainage joint 6 are pre-installed in place before leaving the factory. The flow connection pipe 3 and the flushing pipe 4 are both connected to the outside of the flow connection joint 5, and the flow connection pipe 3 and the flushing pipe 4 are respectively communicated with the injection hole 8 and the drainage channel 13. After the drainage pipe fitting 1 is placed and the trocar is removed, the flow connection joint 5 and the drainage joint 6 are combined. The injection hole 8 is inserted into the inside of the flushing hole 9, and the drainage channel 13 is docked with the drainage hole 12. Finally, the nut 2 is connected to the external thread 11 until the nut 2 abuts against the outer wall of the septum 10, so as to realize the fixation of the flow connection joint 5 and the drainage joint 6. The pipelines at the drainage end and the flow connection end are assembled in the factory. During the clinical operation, only these two parts need to be combined together, and the operation is simple. After the flow connection joint 5 and the drainage joint 6 are fixed by the nut 2, the sealing ring 7 on the outer walls of the drainage joint 6 and the flow connection joint 5 will abut against the inner wall of the nut 2, so as to ensure the airtightness between the drainage joint 6, the flow connection joint 5 and the nut 2, thereby improving the stability of the detachable double-chamber drainage pipe joint in use.

[0031] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A separable double-chamber drainage tube connector, comprising a connector body, a drainage tube member (1), a drainage tube (3) and a flushing tube (4), characterized in that, The joint body includes a current-receiving joint (5), a drainage joint (6), and a connection component for connecting the current-receiving joint (5) and the drainage joint (6). The drainage joint (6) is fixedly connected to the drainage pipe fitting (1) through a partition valve (10). A flushing hole (9) and a drainage hole (12) are provided inside the drainage joint (6). An injection hole (8) and a drainage channel (13) that are respectively communicated with the flushing hole (9) and the drainage hole (12) are arranged inside the current-receiving joint (5). The injection hole (8) and the drainage channel (13) are respectively communicated with a flushing pipe (4) and a current-receiving pipe (3).

2. The separable double-chamber drainage tube connector according to claim 1, characterized in that, The connection component includes a nut (2). The inner surface wall of the nut (2) is screwed to the outer surface wall of the current-receiving joint (5) through an external thread (11), and the inner surface wall of the nut (2) abuts against the outer surface wall of the partition valve (10).

3. The separable double-chamber drainage tube connector according to claim 2, characterized in that, Multiple groups of the partition valves (10) are provided, and the multiple groups of the partition valves (10) are annularly distributed.

4. The separable double-chamber drainage tube connector according to claim 3, characterized in that, The outer surface walls of the multiple groups of the partition valves (10) all abut against the inner surface wall of the nut (2).

5. The separable double-chamber drainage tube connector according to claim 4, characterized in that, Sealing rings (7) are sleeved on the outer surface walls of the current-receiving joint (5) and the drainage joint (6), and the outer surface walls of the two sealing rings (7) both abut against the inner surface wall of the nut (2).

6. The separable double-chamber drainage tube connector according to claim 5, characterized in that, A step is formed between the drainage channel (13) and the injection hole (8). The open end of the drainage joint (6) abuts against the step. The injection hole (8) is inserted into the flushing hole (9) internally, and the drainage channel (13) is connected in alignment with the drainage hole (12).

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