Disposable double-cavity internal and external drainage tube

Abstract

The utility model relates to the technical field of medical instruments, in particular to a disposable double-cavity internal and external drainage tube which comprises a drainage tube body and a needle core, the middle of the drainage tube body is provided with double cavities, the surface of one end of the drainage tube body is respectively provided with an inner drainage port and an outer drainage port, and the surface of one end of the inner drainage port is provided with a protective sleeve cap. A flow stopping clamp is arranged at one end of the protective sleeve cap, developing rings are arranged at the two ends of one side of the drainage tube body, and a medicine loading groove, an outer drainage stopping end and an outer drainage hole are sequentially formed in the surface of the bottom end of the drainage tube body from left to right. And meanwhile, a plurality of groove bodies are designed at the tail section of the external drainage device, so that a doctor can load chemotherapeutic drugs or particle devices to achieve a certain treatment effect, and the problem that intestinal juice of the duodenum flows back to cause infection in the biliary tract is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a disposable double-lumen internal and external drainage tube. Background Art

[0002] After searching the Chinese patent document with the existing announcement number CN206587266U, a single-tube double-hole bile duct internal and external drainage tube capable of refluxing bile is disclosed, comprising a liquid storage bag, an internal drainage tube and an external drainage tube, wherein the internal drainage tube and the external drainage tube are arranged side by side and attached and connected, the proximal end of the external drainage tube is connected to the inner cavity of the liquid storage bag through a first connecting tube, a first switch is provided on the first connecting tube, the proximal end of the internal drainage tube is connected to the inner cavity of the liquid storage bag through a second connecting tube, a second switch is provided on the second connecting tube, the internal drainage tube and the external drainage tube are both provided with a plurality of through holes connected to the outside, and the device can effectively prevent intestinal fluid from refluxing into the bile duct, thereby avoiding a large amount of bile loss.

[0003] Currently, most of the existing technical solutions only have single-lumen internal drainage tubes or external drainage tubes and single-lumen internal and external drainage tubes. The currently commonly used single-lumen internal drainage tubes or external drainage tubes cannot solve the problem of bile backflow, and although the single-lumen internal and external drainage tubes can solve the problem of internal and external drainage, when the patient's bile pressure decreases, it is easy to cause duodenal intestinal fluid to flow back and cause infection in the bile duct, resulting in poor drainage efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a disposable double-lumen internal and external drainage tube, aiming to solve the technical problem that although a single-lumen internal and external drainage tube can solve the problem of internal and external drainage, it is easy to cause reflux of intestinal fluid in the duodenum and cause infection in the bile duct when the pressure in the patient's bile decreases.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model discloses a disposable double-lumen internal and external drainage tube, comprising a drainage tube body and a needle core, wherein the middle part of the drainage tube body is provided with a double-lumen arrangement, an inner drainage port and an outer drainage port are respectively arranged on the surface of one end of the drainage tube body, a needle core is arranged on the inner side of the outer drainage port, a connecting piece is arranged on the end of the surface of one side of the drainage tube body, a protective cap is arranged on the surface of one end of the inner drainage port, a flow stop clip is arranged on one end of the protective cap, developing rings are arranged on both ends of one side of the drainage tube body, an inner drainage hole is arranged on the end of the top surface of the drainage tube body, and a drug loading groove, an outer drainage cut-off end and an outer drainage hole are arranged on the surface of the bottom end of the drainage tube body from left to right.

[0007] As a further description of the above technical solution:

[0008] The drainage tube body is composed of a cylindrical polyurethane layer, the upper part of the drainage tube body is an inner drainage tube, and the lower part is an outer drainage tube. The diameter of the drainage tube body is 6F-20F, and the length is 40cm.

[0009] As a further description of the above technical solution:

[0010] The external drainage port and the needle core are movably connected, and the external drainage port can be connected to a shunt tube, the length of the shunt tube is set to 5 cm, and the drainage tube body and the connecting piece are fixedly connected, and a circular hole is provided on the inner side of the connecting piece so that the internal drainage port and the external drainage port at the end of the drainage tube body can be inserted and fixed.

[0011] As a further description of the above technical solution:

[0012] The inner drainage port and the protective cap are threadedly connected, the inner drainage port and the stop clamp are spliced ​​and assembled, and the stop clamp is detachable. The drainage tube body and the developing ring are fixedly connected, and the developing ring is set in two with a thickness of 0.2-0.8mm.

[0013] As a further description of the above technical solution:

[0014] The inner drainage holes and the outer drainage holes are both circular hollow holes, which are arranged horizontally in sequence on the top and bottom surfaces of the drainage tube body. The drug loading groove is a plurality of slots with an overall length of 10 cm, which are arranged in sequence in a cross-step manner. The diameter of the drug loading groove is 0.6 mm and the long diameter is 1.8 mm.

[0015] As a further description of the above technical solution:

[0016] The overall length of the inner drainage hole is set to 10 cm, the overall length of the outer drainage hole is set to 5 cm, and the length of the developing ring on one side of the outer drainage hole from the inner drainage port and the outer drainage port is set to 15 cm.

[0017] The utility model has the following beneficial effects:

[0018] In the utility model, the double lumens of the drainage tube work independently, and the bile is drained to the outside of the body through a cavity interface, and then directly returned to the duodenum through another channel to avoid cross infection. At the same time, multiple grooves are designed at the end of the external drainage, on which doctors can load chemotherapy drugs or particle devices to achieve a certain therapeutic effect, effectively reducing the problem of bile duct infection caused by reflux of intestinal fluid in the duodenum. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic plan view of the overall structure of the utility model;

[0021] Figure 2 It is a schematic cross-sectional view of the drainage tube body of the utility model;

[0022] Figure 3 It is a plane schematic diagram of the needle core of the utility model;

[0023] In the figure: 1. drainage tube body; 2. needle core; 3. inner drainage port; 4. outer drainage port; 5. connector; 6. protective cap; 7. stop clamp; 8. developing ring; 9. inner drainage hole; 10. drug loading slot; 11. outer drainage cut-off end; 12. outer drainage hole. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0025] In the drawings, the same reference numerals all refer to the same components.

[0026] Example 1

[0027] Reference Figure 1-3 The utility model provides an embodiment: a disposable double-lumen internal and external drainage tube, comprising a drainage tube body 1 and a needle core 2, wherein the middle part of the drainage tube body 1 is a double-lumen setting, an inner drainage port 3 and an outer drainage port 4 are respectively arranged on the surface of one end of the drainage tube body 1, a needle core 2 is arranged on the inner side of the outer drainage port 4, a connecting piece 5 is arranged on the end of the surface of one side of the drainage tube body 1, a protective cap 6 is arranged on the surface of one end of the inner drainage port 3, a stop clamp 7 is arranged on one end of the protective cap 6, a developing ring 8 is arranged on both ends of one side of the drainage tube body 1, an inner drainage hole 9 is arranged on the end of the top surface of the drainage tube body 1, and a drug loading groove 10, an outer drainage cut-off end 11 and an outer drainage hole 12 are arranged on the bottom surface of the drainage tube body 1 from left to right.

[0028] The drainage tube body 1 is composed of a cylindrical polyurethane layer, the upper part of the drainage tube body 1 is an inner drainage tube, and the lower part is an outer drainage tube. The diameter of the drainage tube body 1 is 6F-20F, and the length is 40cm.

[0029] The external drainage port 4 and the needle core 2 are movably connected, and the external drainage port 4 can be connected to a shunt tube with a length of 5 cm. The drainage tube body 1 and the connecting piece 5 are fixedly connected, and a circular hole is provided on the inner side of the connecting piece 5 so that the internal drainage port 3 and the external drainage port 4 at the end of the drainage tube body 1 can be inserted and fixed.

[0030] The inner drainage port 3 and the protective cap 6 are threadedly connected, the inner drainage port 3 and the stop clamp 7 are spliced ​​and assembled, and the stop clamp 7 is detachable. The drainage tube body 1 and the developing ring 8 are fixedly connected, and the developing ring 8 has two settings with a thickness of 0.2-0.8mm.

[0031] The overall length of the inner drainage hole 9 is set to 10 cm, the overall length of the outer drainage hole 12 is set to 5 cm, and the length of the developing ring 8 on one side of the outer drainage hole 12 from the inner drainage port 3 and the outer drainage port 4 is set to 15 cm

[0032] The inner drainage hole 9 and the outer drainage hole 12 are both circular hollow holes, which are arranged horizontally in sequence on the top and bottom surfaces of the drainage tube body 1. The drug loading groove 10 is a plurality of slots with an overall length of 10 cm, which are arranged in sequence in a cross-step manner. The diameter of the drug loading groove 10 is 0.6 mm and the long diameter is 1.8 mm.

[0033] The overall length of the inner drainage hole is set to 10 cm, the overall length of the outer drainage hole is set to 5 cm, and the length of the developing ring on one side of the outer drainage hole from the inner drainage port and the outer drainage port is set to 15 cm.

[0034] Specifically, the structure is composed of a drainage tube body 1, a needle core 2, an inner drainage port 3, an outer drainage port 4, a connector 5, a protective cap 6, a stop clamp 7, a developing ring 8, an inner drainage hole 9, a drug loading groove 10, an outer drainage cut-off end 11 and an outer drainage hole 12 to form a disposable double-lumen inner and outer drainage tube. The drainage tube body 1 adopts the siphon or vacuum suction principle, is placed in the human surgical area or body cavity and discharged from the body through a skin incision, and pus, exudate, tissue fluid and other liquids accumulated in the body tissue or body cavity are guided to the outside to prevent liquid deposition and postoperative infection. Promote wound healing and disease recovery. Through the needle core 2, bile can be transmitted from the external drainage port 4 to the inner end of the drainage tube body 1, which supports the left and right sides to facilitate catheterization. The internal drainage port 3 is retained outside the body and can be connected to a drainage bag to return the bile drained to the internal drainage hole 9. The internal drainage hole 9 is retained in the duodenum through the liver and gallbladder to directly return the bile to the duodenum. The external drainage port 4 is retained outside the body and can be connected to a negative pressure drainage bag to receive the bile drained. The external drainage hole 12 is retained in the intrahepatic bile duct to drain the bile to the external drainage port 4 connected to the negative pressure drainage bag. The connector 5 is easy to operate and use. The disposable double-lumen internal and external drainage tube is convenient to hold, and the protective cap 6 is similar to a bottle cap. The structure is that the inner drainage port 3 can be tightened during the external drainage operation, and the flow-stopping clamp 7 can be used to prevent the bile or intestinal fluid from flowing out due to excessive pressure and the cap cannot be tightened, thereby playing a flow-stopping role. The developing ring 8 is used as a marking ring for X-ray developing marking of the remote working area during interventional treatment. It is a disposable medical material, and the drug loading groove 10 can effectively wrap and fix drugs with a diameter of 0.6mm and a long diameter of 1.8mm, so that doctors can load chemotherapy drugs or particle devices to achieve a certain therapeutic effect. The bile is drained out of the body through the external drainage hole, and the disposable double-lumen internal and external drainage tube is returned to the duodenum through the channel of the inner drainage port 3, avoiding cross infection caused by the return of intestinal fluid into the bile duct.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A disposable double-lumen internal and external drainage tube, comprising a drainage tube body (1) and a needle core (2), wherein the middle part of the drainage tube body (1) is a double-lumen arrangement, characterized in that: The surface of one end of the drainage tube body (1) is respectively provided with an inner drainage port (3) and an outer drainage port (4), the inner side of the outer drainage port (4) is provided with a needle core (2), the end of one side surface of the drainage tube body (1) is provided with a connecting piece (5), the surface of one end of the inner drainage port (3) is provided with a protective cap (6), one end of the protective cap (6) is provided with a stop clamp (7), both ends of one side of the drainage tube body (1) are provided with a developing ring (8), the end of the top surface of the drainage tube body (1) is provided with an inner drainage hole (9), and the bottom surface of the drainage tube body (1) is provided with a drug loading groove (10), an outer drainage cut-off end (11) and an outer drainage hole (12) in sequence from left to right.

2. A disposable double-lumen internal and external drainage tube according to claim 1, characterized in that: The drainage tube body (1) is composed of a cylindrical polyurethane layer, the upper part of the drainage tube body (1) is an inner drainage tube, and the lower part is an outer drainage tube. The diameter of the drainage tube body (1) is 6F-20F, and the length is 40cm.

3. A disposable double-lumen internal and external drainage tube according to claim 1, characterized in that: The external drainage port (4) and the needle core (2) are movably connected, and the external drainage port (4) can be connected to a shunt tube, the length of the shunt tube is set to 5 cm, and the drainage tube body (1) and the connecting piece (5) are fixedly connected, and a circular hole is provided on the inner side of the connecting piece (5), so that the internal drainage port (3) and the external drainage port (4) at the end of the drainage tube body (1) can be inserted and fixed.

4. A disposable double-lumen internal and external drainage tube according to claim 1, characterized in that: The inner drainage port (3) and the protective cap (6) are threadedly connected, the inner drainage port (3) and the stopper clamp (7) are spliced ​​and assembled, and the stopper clamp (7) is detachable. The drainage tube body (1) and the developing ring (8) are fixedly connected, and the developing ring (8) is provided in two configurations, with a thickness of 0.2-0.8 mm.

5. A disposable double-lumen internal and external drainage tube according to claim 1, characterized in that: The inner drainage hole (9) and the outer drainage hole (12) are both circular hollow holes, which are arranged in a plurality of horizontal sequences on the top and bottom surfaces of the drainage tube body (1). The drug loading slot (10) is a plurality of slots with an overall length of 10 cm, which are arranged in a cross-step manner. The drug loading slot (10) has a diameter of 0.6 mm and a long diameter of 1.8 mm.

6. A disposable double-lumen internal and external drainage tube according to claim 1, characterized in that: The overall length of the inner drainage hole (9) is set to 10 cm, the overall length of the outer drainage hole (12) is set to 5 cm, and the distance between the developing ring (8) on one side of the outer drainage hole (12) and the inner drainage port (3) and the outer drainage port (4) is set to 15 cm.

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