CN212816661U

CN212816661U - Intraoperative visual biliary stent implanting device

Info

Publication number: CN212816661U
Application number: CN202020504132.9U
Authority: CN
Inventors: 钱道海; 王小明; 孙卫东; 王冠男; 曾美红; 蒋亚琦; 方小三; 韩猛; 沈正超; 王徐; 蒋彬
Original assignee: Yijishan Hospital of Wannan Medical College
Current assignee: Yijishan Hospital of Wannan Medical College
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2021-03-30
Anticipated expiration: 2030-04-07

Abstract

The utility model relates to an intraoperative visual biliary tract stent implanting device, which comprises a metal guide wire, a push rod and a soft polyethylene biliary tract stent, wherein the surface of the metal guide wire is plated with fluorescent powder, and the push rod and the soft polyethylene biliary tract stent are in hollow tubular structures; under a normal state, two ends of the soft polyethylene biliary tract stent are respectively turned inwards to form a semicircular structure; when the flexible polyethylene biliary stent is pushed, the flexible polyethylene biliary stent is connected to the metal guide wire in a penetrating mode, and one end of the pushing rod abuts against one end of the flexible polyethylene biliary stent and pushes the flexible polyethylene biliary stent. The beneficial effects of the utility model reside in that: simple structure, convenient use, high success rate, exact effect and small risk, and is worthy of clinical popularization.

Description

Intraoperative visual biliary stent implanting device

Technical Field

The utility model relates to an imbedding device for surgical operation, in particular to an intraoperative visual biliary tract stent imbedding device.

Background

Common bile duct stones, ampulla tumors and other diseases cause common bile duct obstruction and bile duct expansion above the obstruction part, and further cause obstructive jaundice. Once obstructive jaundice occurs in a patient, surgical treatment is often needed to relieve biliary obstruction and keep bile drainage smooth. For finding that the tumor has distant metastasis after probing in the operation or is more serious than preoperative prediction, no operation can be performed for radical treatment, surgeons often only perform the palliative operations of tumor biopsy, T tube placement or cholangiointestinal drainage and the like, and some surgeons select percutaneous liver puncture drainage (PTCD) under the guidance of B ultrasound or endoscopic downlink biliary stent implantation to relieve jaundice. However, no matter the T-tube row is placed for permanent external drainage or biliary-enteric anastomosis internal drainage, or the PTCD is performed after operation or the endoscopic biliary stent implantation is performed, there are certain disadvantages, which affect the treatment effect of the patient, and mainly appear as follows: the T-shaped tube is a foreign body, discomfort can be brought to a patient, and meanwhile, the water electrolyte is disordered and the digestive function is weakened due to the loss of a large amount of bile, so that the life quality of the patient is seriously affected; 2. the damage and risk of the cholangiointestinal drainage are large, and the natural digestive passage needs to be changed; 3. the PTCD after operation needs to be subjected to secondary trauma, the PTCD externally drains, so that a large amount of bile is lost, water electrolyte is disordered, the digestion function is weakened, and the drainage tube is a foreign body, so that discomfort and infection of a patient can be caused, and the life quality is reduced; 4. the biliary stent implantation under the postoperative endoscope needs to suffer from secondary trauma, damage oddis sphincter and also complications of pancreatitis, hemorrhage and other risks. Therefore, for obstructive jaundice, if a tumor is found to have no chance of radical treatment during operation, no matter which palliative treatment method is adopted, a satisfactory treatment effect cannot be achieved.

SUMMERY OF THE UTILITY MODEL

To the deficiency of the prior art, the utility model aims at providing a visual biliary tract stent implantation device in art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a visual biliary tract stent implantation device in an operation comprises a metal guide wire, a push rod and a soft polyethylene biliary tract stent, wherein fluorescent powder is plated on the surface of the metal guide wire, and the push rod and the soft polyethylene biliary tract stent are in a hollow tubular structure; under a normal state, two ends of the soft polyethylene biliary tract stent are respectively turned inwards to form a semicircular structure; when the flexible polyethylene biliary stent is pushed, the flexible polyethylene biliary stent is connected to the metal guide wire in a penetrating mode, and one end of the pushing rod abuts against one end of the flexible polyethylene biliary stent and pushes the flexible polyethylene biliary stent.

Preferably, the metal guide wire has a length of 80cm and a diameter of 6 mm.

The phosphor can be made of noctilucent materials with indocyanine green and ZnS as matrixes, calcium halophosphate phosphor and the like.

Preferably, the push rod is matched with the soft polyethylene biliary tract stent in size.

Preferably, the surface of the soft polyethylene biliary tract stent is coated with particles or chemotherapeutic drugs.

The beneficial effects of the utility model reside in that: simple structure, convenient use, high success rate, exact effect and small risk, and is worthy of clinical popularization.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of the push state of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and it should be noted that the following embodiments are based on the technical solution, and the detailed embodiments and the specific operation processes are provided, but the protection scope of the present invention is not limited to the embodiments.

As shown in fig. 1, the utility model relates to a visual biliary tract stent implantation device in operation, which comprises a metal guide wire 1, a push rod 2 and a soft polyethylene biliary tract stent 3, wherein the surface of the metal guide wire 1 is plated with fluorescent powder, and the push rod 2 and the soft polyethylene biliary tract stent 3 are in a hollow tubular structure; under a normal state, two ends of the flexible polyethylene biliary tract stent 3 are respectively turned inwards to form a semicircular structure 31; when pushing, the flexible polyethylene biliary tract stent 3 is connected to the metal guide wire 1 in a penetrating manner, and one end of the pushing rod 2 abuts against one end of the flexible polyethylene biliary tract stent 3 for pushing.

Preferably, the metal guide wire has a length of 80cm and a diameter of 6 mm.

Example 1

As shown in fig. 2a and 2b (the organ of the human body in the operation is not shown), in the open abdomen or laparoscopic surgery, the metal guide wire of the utility model is inserted through the cystic duct, the surface of the metal guide wire is plated with fluorescent material and enters the choledochus, then the metal guide wire is downwards reached to the duodenum along the choledochus, the depth and the position of the metal guide wire can be judged according to the fluorescence emitted by the metal guide wire during the process, the placing effect is verified, the visualization is realized, then the semicircular structure at one end of the flexible polyethylene biliary tract stent is turned over and is penetrated on the metal guide wire until the semicircular structure at the other end of the flexible polyethylene biliary tract stent is also penetrated on the metal guide wire, the flexible polyethylene biliary tract stent is slowly pushed along the metal guide wire by using the push rod matched with the flexible polyethylene biliary tract stent, the observation is carried out while pushing, and the soft polyethylene biliary tract stent is placed in place until the fluorescence at the far end of the metal guide, at the moment, the push rod is removed, and the metal guide wire is slowly withdrawn, so that the operation is finished. It should be noted that after the metal guide wire is withdrawn, the two ends of the flexible polyethylene biliary tract stent are restored to the semi-circular structure.

Example 2

When the user is a child:

1. the metal guide wire with the surface plated with the fluorescent powder is about 60cm long and 4mm in diameter, the fluorescent material can be noctilucent material with indocyanine green and ZnS as matrixes, calcium halophosphate fluorescent powder and the like, the manufacturing is simple and convenient, and the metal guide wire can be sterilized by autoclaving.

2. The pushing rod is made of plastic, has the diameter of 6mm, the inner diameter of 4mm, the outer diameter of 2mm and the length of about 30cm, and can be sterilized under high pressure;

3. the flexible polyethylene biliary tract stent has a diameter of 6mm, an inner diameter of 4mm, an outer diameter of 2mm, a length of about 30cm, is hollow, has two semicircular ends, can be stretched into a straight line, has one end placed in a biliary main tube and the other end placed in a duodenum, plays a role in excreting bile, can be coated with particles or chemotherapeutic drugs on the surface of the flexible polyethylene biliary tract stent, and can kill tumors.

Example 3

When the user is an adult and the common bile duct diameter exceeds 8mm, but is less than 12mm, it is possible to choose:

1. the metal guide wire with the surface plated with the fluorescent powder is about 80cm long and 6mm in diameter, the fluorescent material can be noctilucent material with indocyanine green and ZnS as matrixes, calcium halophosphate fluorescent powder and the like, the manufacturing is simple and convenient, and the metal guide wire can be sterilized by autoclaving.

2. The pushing rod is made of plastic, has the diameter of 8mm, the inner diameter of 6mm, the outer diameter of 2mm and the length of about 40cm, and can be sterilized under high pressure;

3. the soft polyethylene biliary tract stent has a diameter of 8mm, an inner diameter of 6mm, an outer diameter of 2mm, a length of about 40cm, is hollow, has two semicircular ends, can be stretched into a straight line, has one end placed in a biliary main tube and the other end placed in a duodenum, plays a role in excreting bile, can be coated with particles or chemotherapeutic drugs on the surface of the soft polyethylene biliary tract stent, and can kill tumors.

Example 4

Adult common bile duct diameter exceeds 12mm, but is less than 16mm, and it is possible to choose:

1. the metal guide wire with the surface plated with the fluorescent powder is about 80cm long and 8mm in diameter, the fluorescent material can be noctilucent material taking indocyanine green and ZnS as matrixes, calcium halophosphate fluorescent powder and the like, the manufacturing is simple and convenient, and the metal guide wire can be sterilized by autoclaving.

2. The push rod is made of plastic, has the diameter of 10mm, the inner diameter of 8mm, the outer diameter of 2mm and the length of about 40cm, and can be sterilized under high pressure;

3. the soft polyethylene biliary tract stent has a diameter of 10mm, an inner diameter of 8mm, an outer diameter of 2mm, a length of about 40cm, is hollow, has two semicircular ends, can be stretched into a straight line, has one end placed in a biliary main tube and the other end placed in a duodenum, plays a role in excreting bile, can be coated with particles or chemotherapeutic drugs on the surface of the soft polyethylene biliary tract stent, and can kill tumors.

Example 5

1. The metal guide wire with the surface plated with the fluorescent powder is about 80cm long and 10mm in diameter, the fluorescent material can be noctilucent material with indocyanine green and ZnS as matrixes, calcium halophosphate fluorescent powder and the like, the manufacturing is simple and convenient, and the metal guide wire can be sterilized by autoclaving.

2. The push rod is made of plastic, has the diameter of 12mm, the inner diameter of 10mm, the outer diameter of 2mm and the length of about 40cm, and can be sterilized under high pressure;

3. the soft polyethylene biliary tract stent has a diameter of 12mm, an inner diameter of 10mm, an outer diameter of 2mm, a length of about 40cm, is hollow, has two semicircular ends, can be stretched into a straight line, has one end placed in a biliary main tube and the other end placed in a duodenum, plays a role in excreting bile, can be coated with particles or chemotherapeutic drugs on the surface of the soft polyethylene biliary tract stent, and can kill tumors.

Various corresponding changes and modifications can be made by those skilled in the art according to the above technical solutions and concepts, and all such changes and modifications should be included in the protection scope of the present invention.

Claims

1. The intraoperative visual biliary stent implanting device is characterized by comprising a metal guide wire, a pushing rod and a soft polyethylene biliary stent, wherein fluorescent powder is plated on the surface of the metal guide wire, and the pushing rod and the soft polyethylene biliary stent are of hollow tubular structures; under a normal state, two ends of the soft polyethylene biliary tract stent are respectively turned inwards to form a semicircular structure; when the flexible polyethylene biliary stent is pushed, the flexible polyethylene biliary stent is connected to the metal guide wire in a penetrating mode, and one end of the pushing rod abuts against one end of the flexible polyethylene biliary stent and pushes the flexible polyethylene biliary stent.

2. The intraoperative visible biliary stent placement device of claim 1, wherein the metal guidewire is 80cm in length and 6mm in diameter.

3. The intraoperative visual biliary stent placement device of claim 1, wherein the push rod is sized to match the soft polyethylene biliary stent.

4. The intraoperative visual biliary stent implantation device according to claim 1 or 3, wherein the surface of the soft polyethylene biliary stent is coated with particles or chemotherapeutic drugs.