CN205849597U - The external interconnect device of extrahepatic duct - Google Patents

Abstract

The utility model relates to an external interconnection device of intrahepatic and extrahepatic bile ducts, which comprises at least one intrahepatic bile duct external drainage tube, a multi-cavity interface, a negative pressure balloon, a three-cavity interface, and a common bile duct external drainage tube. The number of divided lumens of the multi-lumen interface is two more than the number of the intrahepatic bile duct external drainage tubes, and the multi-lumen interface communicates with the plurality of intrahepatic bile duct external drainage tubes respectively, and the remaining interfaces of the multi-lumen interface One can be expanded and can be a connection port specially used for biliary irrigation, and the other is connected to the upper port of the negative pressure balloon; the lower port of the negative pressure balloon is connected to an opening of the three-chamber interface, and the three The other opening of the cavity interface is connected to the external drainage tube of the common bile duct, and the remaining one interface can be expanded. Multiple intrahepatic bile duct external drainage tubes are docked with multi-lumen interfaces to treat obstructive jaundice caused by dilation of multiple intrahepatic bile ducts due to portal blockage.

Description

Extrahepatic and intrahepatic bile duct interconnection device in vitro

technical field

The invention relates to the technical field of medical devices, in particular to an extrahepatic and extrahepatic bile duct interconnection device in vitro, referred to as an artificial gallbladder device.

Background technique

Various benign and malignant biliary obstructions have been threatening human life and health, and the incidence rate is high, and it has been increasing in recent years. It is one of the hot spots of contemporary medical research.

Because the bile duct lumen is relatively small, malignant tumors such as liver cancer, cholangiocarcinoma, and pancreatic head cancer, as well as extrahepatic bile duct stones, can easily cause symptoms of biliary obstruction. damage. The secretion of bile stops, and the permeability of bile duct endothelial cells increases, causing bilirubin to enter the blood, and the function of Kwpffer cells is low, causing damage to multiple organ systems, easily causing renal failure, cholangitis, low heart function, and gastrointestinal stress ulcers A series of complications, such as the survival period is greatly shortened, seriously reducing the quality of life of patients.

Early cholangiocarcinoma has no clinical specificity, and when obstructive jaundice occurs, it is also in the middle and late stage, and the opportunity for surgery is lost. For those patients with long course of disease, deep jaundice, severely impaired liver function, and poor general condition who cannot tolerate laparotomy, as well as patients with extrahepatic and extrahepatic bile duct stones and acute suppurative cholangitis, the surgical risk is very high at this time. The purpose of percutaneous transhepatic biliary drainage (PTCD) drainage is mainly to relieve biliary obstruction, reduce biliary pressure, control biliary infection, improve liver function, and improve the quality of life of patients. So PTCD is a simple and effective way to treat obstructive jaundice.

The main steps of PTCD are: take the patient in the supine position, refer to CT positioning, use a conventional puncture needle sleeve to puncture the intrahepatic bile duct under fluoroscopy, and send a micro guide wire along the PTC needle tube. If the guide wire can pass through the narrow segment during the operation, use an internal and external drainage tube , can not use the external drainage tube through the narrow segment. Then decide whether to perform stent implantation according to the specific situation.

Traditional PTCD has many deficiencies. If the method of simply connecting the external drainage tube to the drainage bag is adopted, the quality of life of the patient is reduced. For example, taking a bath, going to the bathroom, and going shopping all cause a lot of inconvenience. Some patients are afraid of being discriminated against, and they are also unwilling to carry drainage bags.

If you choose to implant a biliary stent, you can avoid living with a bag, but the cost is huge, and it is easy to cause obstruction in the biliary stent after half a year to one year, and it is difficult to get through or implant a new stent after the obstruction.

To sum up, there is a need for a device with strong operability and simplicity, which can improve the quality of life of patients, prolong the survival time of patients, and be used in clinics with low cost, but there are no related reports.

Contents of the invention

In view of this, it is necessary to address the problem and provide a device that can improve the patient's quality of life, prolong the patient's survival time, has strong operability, is simple and cheap.

An extrahepatic and extrahepatic bile duct interconnection device in vitro, comprising at least one intrahepatic bile duct external drainage tube, a multi-lumen interface, a negative pressure balloon, a three-lumen interface, and a common bile duct external drainage tube. The number of intrahepatic bile duct external drainage tubes described above is two more, and the multi-lumen interface is connected with the plurality of intrahepatic bile duct external drainage tubes respectively, and one of the remaining interfaces of the multi-cavity interface can be expanded, which can be used for special The connection port for biliary flushing, the other is connected to the upper port of the negative pressure balloon; the lower port of the negative pressure balloon is connected to one opening of the three-chamber interface, and the other opening of the three-chamber interface is connected to the common bile duct External drainage tube, the remaining one interface can be expanded. Multiple intrahepatic bile duct external drainage tubes are docked with multi-lumen interfaces to treat obstructive jaundice caused by dilation of multiple intrahepatic bile ducts due to portal blockage.

Wherein, the external drainage tube of the intrahepatic bile duct and the external drainage tube of the common bile duct both have side holes to solve the situation that the drainage tube is easily blocked.

Wherein, the multi-chamber interface has an upper valve control switch, and the three-chamber interface has a lower valve control switch. The lower valve can be closed at ordinary times, and the negative pressure balloon stores bile, which is opened when eating to play the role of gallbladder. When the upper valve is open, it can be used for flushing the intrahepatic bile duct to prevent artificial biliary obstruction.

The invention has the following beneficial effects:

1. The device has a simple structure and is easy to operate.

2. Avoid the risk of obstruction after stent placement and prolong the survival time of patients.

3. Biliary tract stents are expensive, but this device is cheap and has obvious advantages. It can be used routinely in clinical practice and is convenient for the people.

4. There is no need to carry a huge drainage bag, which improves medical compliance and improves the quality of life of patients.

5. By squeezing the artificial gallbladder, the bile can flow back into the intestinal tract according to the normal physiological way.

6. The lower valve can be closed at ordinary times, the negative pressure balloon stores bile, and it is opened when eating to play the role of gallbladder.

7. When the upper valve is open, it can be used for flushing the intrahepatic bile duct to prevent artificial biliary obstruction.

Description of drawings

Figure 1: Schematic diagram of the structure of the extrahepatic bile duct interconnection device in vitro;

1 is the external drainage tube of the intrahepatic bile duct, 2 is the multi-lumen interface, 3 is the upper valve, 4 is the negative pressure balloon, 5 is the three-lumen interface, 6 is the lower valve, 7 is the external drainage tube of the common bile duct, 8 is the intrahepatic Bile duct, 9 for benign and malignant obstructive lesions such as tumors, and 10 for common bile duct.

detailed description

The present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Fig. 1 , this embodiment discloses an extrahepatic and extrahepatic bile duct interconnection device in vitro, that is, an artificial gallbladder device. The intrahepatic bile duct 8 and the common bile duct 10 are connected through the artificial gallbladder device, and an artificial bile duct spanning benign and malignant obstructive lesions 9 such as tumors is established.

Specifically, the extrahepatic and extrahepatic bile duct interconnection device of the present invention includes an external drainage tube 1 for the intrahepatic bile duct. There may be multiple drainage tubes 1 for the intrahepatic bile duct. Drainage tube 1. Multiple intrahepatic bile duct external drainage tubes 1 are connected to multiple upper interfaces of the multi-lumen interface 2 . The number of sub-chambers of the multi-lumen interface 2 is two more than that of the intrahepatic bile duct external drainage tube 1, and the side interface of the multi-lumen interface 2 can be used to connect a syringe to flush the artificial biliary tract. The upper end of the balloon 4 is connected. The multi-chamber interface 2 in FIG. connected.

There is an upper valve 3 on the multi-chamber interface 2 . The upper valve 3 controls the switch of the multi-chamber interface 2 . When the upper valve 3 is open, it can be used for flushing the intrahepatic bile duct to prevent artificial biliary obstruction.

The lower end of the negative pressure balloon 4 is connected with the three-chamber interface 5 . By squeezing the artificial gallbladder, the bile can flow back into the intestinal tract according to the normal physiological way.

The three-chamber interface 5 is connected to the upper end of the common bile duct external drainage tube 7 . The three-cavity interface 5 has a lower valve 6 control switch. The lower valve 6 controls the switch of the three-chamber interface 5 . The lower valve can be closed at ordinary times, and the negative pressure balloon stores bile, which is opened when eating to play the role of gallbladder.

Both the external drainage tube 1 of the intrahepatic bile duct and the external drainage tube 7 of the common bile duct have side holes, which is convenient for solving the situation that the drainage tube is easily blocked.

Intrahepatic extrahepatic bile duct extracorporeal interconnection device using method: refer to CT positioning, use a conventional puncture needle sleeve to puncture the right intrahepatic bile duct under fluoroscopy, avoid the thoracic cavity and intestinal tract, and inject contrast medium to see biliary contrast. Common duct, indwelling guide wire in the common bile duct. Under fluoroscopy, another dilated bile duct in the right liver was punctured again with a conventional puncture needle sheath while avoiding the thoracic cavity and intestinal tract. Under fluoroscopy, the common bile duct was punctured according to the guide wire indwelling in the portal area-common bile duct-duodenum, and the lower end of the common bile duct drainage tube was placed in the duodenum, and the upper end was outside the body. Two external drainage tubes of the intrahepatic bile duct were placed and connected to the upper end of the artificial gallbladder, and the lower end of the artificial gallbladder was connected to the upper end of the common bile duct drainage tube. Angiography showed that the artificial biliary tract was unobstructed. Immobilize the artificial gallbladder. The intrahepatic bile duct 8 and the common bile duct 10 are connected through the artificial gallbladder device, and an artificial bile duct spanning benign and malignant obstructive lesions 9 such as tumors is established. By squeezing the artificial gallbladder, the bile can flow back into the intestinal tract according to the normal physiological way. The lower valve can be closed at ordinary times, and the negative pressure balloon stores bile, which is opened when eating to play the role of gallbladder.

The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (4)

1. the external interconnect device of extrahepatic duct, it is characterised in that include that at least one stones in intrahepatic bile duct drainage tube, multi-cavity connect Mouth, negative pressure sacculus, three chamber interfaces, common bile duct drainage tube, point chamber quantity of described multi-cavity interface is than described stones in intrahepatic bile duct Many two of drainage tube quantity, described multi-cavity interface communicates with described stones in intrahepatic bile duct drainage tube respectively, multi-cavity interface In residue interface, one can be extended, another negative pressure sacculus upper end port described in connection；Described negative pressure sacculus lower end Port connects an opening of three chamber interfaces, and another opening of three described chamber interfaces connects common bile duct drainage tube, residue One interface can be extended.

The external interconnect device of extrahepatic duct the most according to claim 1, it is characterised in that draw outside described stones in intrahepatic bile duct Flow tube and common bile duct drainage tube are all with side opening.

The external interconnect device of extrahepatic duct the most according to claim 1, it is characterised in that on described multi-cavity interface has Valve controlling switchs.

The external interconnect device of extrahepatic duct the most according to claim 1, it is characterised in that described three chamber interfaces have lower valve Gate control switchs.