A transhepatic biliary and duodenal or jejunum bile return tube

Abstract

The utility model relates to a kind of through liver biliary tract and duodenum or jejunum bile reinfusion tube, applicable to clinical bile drainage after reinfusion treatment.The technical scheme provided by the utility model is a kind of through liver biliary tract and duodenum or jejunum bile reinfusion tube, including reinfusion tube body, pipe head and protective cap;The proximal end of the reinfusion tube body is fixedly connected with pipe head, and the distal end of the reinfusion tube body is provided with pipe mouth, the length of the reinfusion tube is 30cm-50cm, and the outer diameter of the reinfusion tube is 2mm;The pipe head is provided with the holding plate of integrated structure on the two sides of the connecting place with reinfusion tube body, the pipe head is conical frustum structure from outside to the inside of one end of reinfusion tube body, and its inner diameter gradually reduces;The protective cap is sealed with the other side of pipe head and is buckled.The bile reinfusion tube is designed according to the special requirement of bile reinfusion, optimizes pipe diameter, length and interface structure, adapts different specifications syringe and guide wire, and ensures that operation is convenient, safe and reliable.

Description

Technical Field

[0001] This utility model relates to the field of minimally invasive interventional catheter technology, specifically to a bile return catheter via the liver, bile duct, duodenum, or jejunum. Background Technology

[0002] Bile reinfusion technology, which originated in the 1990s, involves collecting bile drained from patients undergoing external biliary drainage and returning it directly or after processing to the digestive tract. Currently, bile reinfusion methods include: oral administration of undiluted bile, oral administration of bile capsules, bile reinfusion via nasogastric, duodenal, or jejunal feeding tubes (hereinafter referred to as nasogastric tube bile reinfusion), and bile reinfusion via jejunostomy tubes. Theoretically, bile can be taken orally directly, but due to the unique color, taste, and secretion volume of bile, patient compliance is extremely poor, resulting in its extremely limited use. Bile capsules are made by concentrating collected bile through heating and distillation, then encapsulating the concentrated bile powder. However, heating and distillation destroy a large number of active components in the bile, so this method is rarely used currently. Nasogastric, duodenal, or jejunal tube bile reinfusion involves first inserting a feeding tube through the nose into the stomach, duodenum, or jejunum, and then reinfusing bile into the digestive tract through the tube. Biliary return via jejunostomy involves surgically inserting a jejunostomy tube through percutaneous abdominal puncture, followed by bile return through the tube. Compared to bile return via nasogastric feeding tube, this surgical procedure is more invasive and has more complications, and is rarely used at present.

[0003] Adults secrete approximately 800-1000 ml of bile daily, composed of bile salts, bile pigments, cholesterol, lecithin, potassium, sodium, calcium, etc., and also containing a large amount of immunoglobulins, primarily IgA. Bile plays various physiological roles, including promoting food digestion and absorption, neutralizing gastric acid, regulating immunity, promoting autocrine secretion, maintaining intestinal flora balance, and preserving the integrity of the intestinal mucosal barrier. While nasogastric feeding tubes have solved the bile reinfusion problem and are effective, the need to fix the tube on the patient's face not only affects their appearance but also causes damage to the nasopharynx and digestive tract mucosa due to repeated friction. This can lead to dryness, erosion, ulceration, pain, bleeding, pharyngitis, and even nasal septum perforation. Furthermore, impaired epiglottic function can result in secondary aspiration pneumonia. Therefore, how to return the large amount of bile lost outside the body to the digestive tract with minimal trauma and restore enterohepatic bile circulation has always been a hot topic and key issue in clinical research. Therefore, this application proposes a bile return tube via the liver, bile duct, duodenum, or jejunum that shares the same access route as the external biliary drainage tube and causes no new tissue damage. Utility Model Content

[0004] The purpose of this invention is to provide a bile return tube via the liver, bile duct, duodenum, or jejunum that shares the same access route as the external biliary drainage tube and causes no new tissue damage, in order to solve the problems of large trauma and numerous complications associated with nasogastric feeding tube return mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is a bile return tube via the hepatic duct and duodenum or jejunum, comprising a return tube body, a tube head, and a protective cap; the proximal end of the return tube body is fixedly connected to the tube head, and the distal end of the return tube body is provided with a tube opening; the length of the return tube is 30cm-50cm, and the outer diameter of the return tube is 2mm; the tube head is provided with integrated gripping plates on both sides at the connection point with the return tube body, and the tube head is generally frustoconical in shape from the outside to the inside of one end of the return tube body, with its inner diameter gradually decreasing; the protective cap is fastened and sealed to the other side of the tube head.

[0006] As a preferred embodiment of this utility model, the inner diameter of the return pipe body is 1.2 mm, and a 0.038 guide wire is allowed to pass through.

[0007] As a preferred technical solution of this utility model, the side of the return pipe body located at one end of the pipe opening is either without side holes or with side holes, and the number of side holes is two.

[0008] As a preferred embodiment of this invention, the tube head is designed to accommodate syringes of 10ml, 20ml, and 50ml.

[0009] As a preferred embodiment of this utility model, the protective cap wraps around the tube head from the outside, and a filling rod for filling the inside of the tube head is provided on the inside of the protective cap. The connection between the inside of the protective cap and the tube head is either a plug-in connection or a threaded connection.

[0010] As a preferred embodiment of this invention, the outer side of the protective cap is provided with multiple vertical anti-slip patterns.

[0011] The advantages of this utility model compared with the prior art are as follows:

[0012] 1. This bile reinfusion catheter simultaneously performs external biliary drainage and bile reinfusion through a single puncture approach. It not only drains bile but also solves the bile reinfusion problem, while avoiding complications such as retrograde bile duct infection and bile reinfusion via nasogastric feeding tube caused by external or internal biliary drainage. This technique is not only suitable for patients with obstructive jaundice for the first time, but also suitable for patients who have undergone external biliary drainage first, as the single puncture approach is also suitable for patients. Bile reinfusion can be performed simply and safely through the transhepatic bile duct and duodenal or jejunal bile reinfusion catheters with no new tissue damage via the same approach as the external biliary drainage catheter.

[0013] 2. This bile return tube shares the same access route with the external bile duct drainage tube, resulting in no new tissue damage. Furthermore, it eliminates the need for swallowing and processing of bile, thus avoiding physical and psychological suffering for the patient and complications associated with bile return via nasogastric tube feeding.

[0014] 3. This bile reinfusion tubing features a protective cap design to prevent contamination, a frustoconical tube head to ensure a secure connection, and a side hole design to prevent tissue adhesion and reduce the risk of injury.

[0015] 4. This bile reinfusion tubing enhances operational stability through an integrated grip plate, optimizes tubing flexibility and dimensions, reduces patient discomfort, and improves the efficiency of medical staff in its use. Attached Figure Description

[0016] Figure 1 This invention relates to a structure for a bile reflux tube via the liver, bile duct, duodenum, or jejunum. Figure 1 .

[0017] Figure 2 This invention relates to a structure for a bile reflux tube via the liver, bile duct, duodenum, or jejunum. Figure 2 .

[0018] Figure 3 This is an exploded structural diagram of a bile return tube via the liver, bile duct, duodenum, or jejunum according to the present invention.

[0019] Figure 4 This is a cross-sectional three-dimensional structural diagram of a bile return tube via the liver, bile duct, duodenum, or jejunum according to the present invention.

[0020] As shown in the figure:

[0021] 1. Return pipe body; 2. Pipe head; 3. Protective cap; 4. Pipe opening; 5. Holding plate; 6. Side hole; 7. Filler rod; 8. Anti-slip texture. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1:

[0025] As per the instruction manual Figure 1-4 As shown, a bile return tube via the liver, bile duct, duodenum, or jejunum includes a return tube body 1, a tube head 2, and a protective cap 3.

[0026] In this utility model, the return tube body 1 is made of a material with certain hardness, hydrophilicity, acid and alkali resistance, and X-ray imaging capability. The inner diameter of the return tube body 1 is 1.2 mm, allowing a 0.038 guide wire to pass through. The proximal end of the return tube body 1 is fixedly connected to the tube head 2, and the distal end of the return tube body 1 is provided with a tube opening 4. The length of the return tube is 40 cm, and the outer diameter of the return tube is 2 mm. The side of the return tube body 1 located at one end of the tube opening 4 has a side hole 6, and the number of side holes 6 is two symmetrically arranged.

[0027] In this utility model, the tube head 2 is provided with integrated gripping plates 5 on both sides at the connection with the return tube body 1. The tube head 2 is a frustum-shaped structure from the outside to the inside of one end of the return tube body 1, and its inner diameter gradually decreases. The inside of the tube head 2 can be adapted to insert 10ml, 20ml and 50ml syringes.

[0028] In this utility model, the protective cap 3 is fastened and sealed to the other side of the tube head 2. The protective cap 3 wraps around the tube head 2 from the outside, and the inner side of the protective cap 3 is provided with a filling rod 7 to fill the inner side of the tube head 2. The inner side of the protective cap 3 is connected to the outer side of the tube head 2 by plug-in fixation. The outer side of the protective cap 3 is provided with multiple vertical anti-slip textures 8.

[0029] Example 2:

[0030] A bile return tube via the liver, bile duct, duodenum, or jejunum includes a tube body 1, a tube head 2, and a protective cap 3.

[0031] In this utility model, the return tube body 1 is made of a material with certain hardness, hydrophilicity, acid and alkali resistance, and X-ray imaging capability. The inner diameter of the return tube body 1 is 1.2 mm, allowing a 0.038 guide wire to pass through. The proximal end of the return tube body 1 is fixedly connected to the tube head 2, and the distal end of the return tube body 1 is provided with a tube opening 4. The length of the return tube is 30 cm, and the outer diameter of the return tube is 2 mm. The side of the return tube body 1 located at the tube opening 4 has no side hole 6.

[0032] In this utility model, the tube head 2 is provided with integrated gripping plates 5 on both sides at the connection with the return tube body 1. The tube head 2 is a frustum-shaped structure from the outside to the inside of one end of the return tube body 1, and its inner diameter gradually decreases. The inside of the tube head 2 can be adapted to insert 10ml, 20ml and 50ml syringes.

[0033] In this utility model, the protective cap 3 is fastened and sealed to the other side of the tube head 2. The protective cap 3 wraps around the tube head 2 from the outside, and the inner side of the protective cap 3 is provided with a filling rod 7 to fill the inner side of the tube head 2. The connection between the inner side of the protective cap 3 and the outer side of the tube head 2 is fixed by thread. The outer side of the protective cap 3 is provided with multiple vertical anti-slip textures 8.

[0034] In specific implementation, the return tube body 1 and the external biliary drainage tube share the same access route, thereby enabling the return tube body 1 to be inserted through the external biliary drainage tube without causing new tissue damage. After passing through the liver and bile duct, the tube opening 4 of the return tube body 1 is located in the duodenum or jejunum for bile return.

[0035] During bile reinfusion, bile is collected using a syringe and then injected by connecting it to tube head 2.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A transhepatic biliary and duodenal or jejunum bile infusion tube, characterized in that: It includes the return pipe body (1), the pipe head (2), and the protective cap (3); The proximal end of the return pipe body (1) is fixedly connected to the pipe head (2), and the distal end of the return pipe body (1) is provided with a pipe opening (4). The length of the return pipe is 30cm-50cm, and the outer diameter of the return pipe is 2mm. The pipe head (2) is provided with integrated gripping plates (5) on both sides at the connection with the return pipe body (1). The pipe head (2) is a frustum-shaped structure from the outside to the inside of one end of the return pipe body (1), and its inner diameter gradually decreases. The protective cap (3) is fastened and sealed to the other side of the tube head (2).

2. The transhepatic biliary and duodenal or jejunum bile duct retroinfusion tube according to claim 1, characterized in that: The inner diameter of the return pipe body (1) is 1.2 mm, and a 0.038 guide wire is allowed to pass through.

3. The bile reflux tube via the liver, bile duct, duodenum, or jejunum according to claim 1, characterized in that: The side of the return pipe body (1) located at one end of the pipe opening (4) is either without a side hole (6) or with a side hole (6), and the number of side holes (6) is two.

4. A bile reflux tube via the hepatic bile duct and duodenum or jejunum according to claim 1, characterized in that: The inside of the tube head (2) can be fitted with syringes of 10ml, 20ml and 50ml.

5. A bile reflux tube via the hepatic bile duct and duodenum or jejunum according to claim 1, characterized in that: The protective cap (3) wraps around the tube head (2) from the outside, and the inner side of the protective cap (3) is provided with a filling rod (7) to fill the inner side of the tube head (2). The connection between the inner side of the protective cap (3) and the tube head (2) is either a plug-in connection or a threaded connection.

6. A bile return tube via the hepatic bile duct and duodenum or jejunum according to claim 1, characterized in that: The outer side of the protective cap (3) is provided with multiple vertical anti-slip patterns (8).

Images