CN216908768U

CN216908768U - Disposable percutaneous transhepatic cholangiodrainage tube

Info

Publication number: CN216908768U
Application number: CN202220005621.9U
Authority: CN
Inventors: 李麟荪; 常永焕; 金道明
Original assignee: Anhui Shuojin Medical Equipment Co ltd
Current assignee: Anhui Shuojin Medical Equipment Co ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-07-08
Anticipated expiration: 2032-01-05

Abstract

The utility model provides a disposable percutaneous transhepatic cholangiotomy intradrainage pipe, it includes drainage catheter body (1), the front end of drainage catheter body (1) is pigtail loop column structure (2), characterized by: the pigtail loop-shaped structure (2) is curled in a thread shape, the end part of the pigtail loop-shaped structure is a conical structure (4), and a plurality of drainage holes (3) are spirally formed in the pigtail loop-shaped structure (2); a traction wire (5) is pre-embedded in the drainage catheter body (1); the direction of front end pigtail circle can be adjusted to this pull wire for pigtail circle shape remains stable, and convenience of customers controls the size and the direction of front end pigtail circle. The utility model has simple structure and safe and reliable use.

Description

Disposable percutaneous transhepatic cholangiodrainage tube

Technical Field

The utility model relates to a medical appliance, in particular to a drainage tube for auxiliary treatment of hepatobiliary tumors, and specifically relates to a disposable percutaneous transhepatic intrabiliary drainage tube.

Background

As is well known, interventional therapy is a minimally invasive treatment method conducted under the guidance of medical imaging equipment, and particularly, a purpose-made surgical tool, such as a catheter, a guide wire and other precise instruments, is introduced into a human body to diagnose and locally treat a patient in the body. With the development of science and technology, the medical level is greatly improved, minimally invasive medical treatment gradually becomes the mainstream of medical development, and the requirement on interventional medical consumables is increased greatly.

Burck and Hardt et al, 1921, first started with gallbladder puncture imaging, and later percutaneous hepatobiliary imaging began in the 20 th century for clinical use in 60 s, but at the time, success rates were low for technical reasons, etc. Since Raskin et al, No. 1, in 1972, puncture was successful under ultrasonic positioning, ultrasound-guided percutaneous transhepatic cholangiotomy catheterization drainage (PTCD) has become widely used in clinical applications, and is suitable for palliative biliary drainage in advanced cases such as pancreatic head cancer, cholangiocarcinoma, hepatic portal metastatic cancer and the like, and preoperative preparation of phase-selective surgery for patients with severe jaundice. Percutaneous transluminal biliary tract drainage (PTCD) is conducted under the guidance of X-ray or B-ultrasonic, a special puncture needle is used to penetrate the intrahepatic bile duct percutaneously, then contrast medium is directly injected into the biliary tract to make the intrahepatic and extrahepatic bile ducts rapidly develop, and meanwhile, the biliary tract drainage is conducted through the contrast medium duct. Is suitable for obstructive jaundice; high obstructive jaundice, severe cholangitis, and unresectable biliary system cancer.

Disposable drainage tube products are currently in the main stream of the market: the imported brands such as Cuk company, US Yoush and Ailang are the main. The drainage tube is used for drainage of biliary tracts only and has strong purpose.

Chinese patent CN202526754U discloses a drainage tube, the main structure of which is a three-dimensional drainage tube with inner side holes, which comprises a tube body and a pigtail coil. The pigtail coil is spirally curled, and a plurality of drainage holes are formed in the side wall of the pigtail coil facing the center of the spiral. And the drainage hole of the drainage tube with the inner side hole of the three-dimensional body is arranged at the inner side of the pigtail coil.

Chinese patent CN208974769U discloses a new biliary tract drainage tube, the degradable elbow of the biliary tract drainage tube is made of animal casing, so when using the biliary tract drainage tube, the elbow does not need to be taken out again, although the secondary damage to the biliary tract caused by taking out the elbow can be avoided, the manufacturing cost is high, the utility is not strong, and the utility is complex.

In summary, the existing drainage tubes mainly have the following problems:

1) the pigtail loop at the front end of the drainage tube is easy to damage the intestinal tract due to the unreasonable front end design.

2) The drainage opening of the drainage tube is unreasonable in design and is easy to block.

3) The outer drainage tube is mostly fixed on the surface of the skin, the movement of a patient is limited, and the individual life is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the existing drainage tube has unreasonable structure, is easy to damage intestinal tracts, has blockage of a drainage port and is inconvenient to use, and designs a disposable percutaneous transhepatic cholangiointradrainage tube.

The technical scheme of the utility model is as follows:

the utility model provides a disposable percutaneous transhepatic cholangiosis internal drainage pipe, it includes drainage catheter body 1, the front end of drainage catheter body 1 is pigtail-shaped structure 2, characterized by: the pigtail loop-shaped structure 2 is spirally curled, the end part of the pigtail loop-shaped structure is a conical structure 4, and a plurality of drainage holes 3 are spirally formed in the pigtail loop-shaped structure 2; a traction wire 5 is pre-embedded in the drainage catheter body 1; the direction of front end pigtail circle can be adjusted to this pull wire for pigtail circle shape remains stable, and convenience of customers controls the size and the direction of front end pigtail circle.

The traction wire 5 is a surgical suture.

The drainage catheter body 1 is a Polyurethane (PU) product with better softness, so that the drainage catheter is beneficial to easily following the cavity and tract of a human body to advance.

The traction wire 5 can ensure that the head of the pigtail coil is propped against the drainage tube body without dislocation.

The drainage holes 3 are arranged on the pigtail ring-shaped structure 2 in 360 degrees.

A plurality of bile inlet holes 7 are arranged on the drainage catheter body 1 80-120 mm away from the root of the pigtail-shaped structure 2. .

The utility model has the beneficial effects that:

1) the shape of the pigtail loop at the front end of the drainage tube is kept stable by using the lead, so that the intestinal tract is not scratched.

2) The utility model spirally rises to open (360 degrees) along the front end of the drainage tube, thereby effectively avoiding bile blockage.

3) The inner drainage tube is adopted, the catheter can be embedded into a human body for 3 months, and the anti-drop design enables the life of a patient to be convenient.

4) The shape-adapted human biliary tract bending structure: the curved shape of the biliary tract drainage tube is manufactured by combining the conformation of the structure of a human body, and the biliary tract drainage tube does not displace after being implanted and does not hurt the intestinal tract.

5) The bile internal drainage is drained from the duodenum to the intestinal tract, the intestinal tract can absorb and promote digestion, and the bile has an emulsifying effect on fat, so that the fat is changed into tiny particles, the contact area of the fat and digestive enzyme is increased, and the digestion of the fat is facilitated.

Drawings

Fig. 1 is a schematic view of the construction of the pull-cord of the present invention when untensioned.

Fig. 2 is a schematic view of the structure of the pulling wire of the present invention when it is tensioned.

Fig. 3 is a schematic view of the present invention in use.

Detailed Description

The utility model is further described below with reference to the figures and examples.

As shown in fig. 1-3.

A disposable percutaneous transhepatic cholangiosis drainage tube comprises a Polyurethane (PU) drainage tube body 1 with better softness, and the adoption of the Polyurethane (PU) with better softness is beneficial to easily following the advance of a human body cavity. The front end of drainage catheter body 1 is pigtail circle column structure 2, as shown in fig. 1, adds the development ring 6 that is equipped with the platinum preparation at the initiating terminal of pigtail circle, pigtail circle column structure 2 be the screw thread form and curl, a plurality of drainage holes 3 have been seted up on pigtail circle side and the lateral wall towards spiral center (360 degrees directions), 360 degrees spiral trompils on pigtail circle can effectively prevent bile jam. The end part of the pigtail loop is in a conical structure 4 (as shown in figure 2), and in addition, a plurality of bile sweat inlet holes 7 (as shown in figure 1) are arranged on the drainage catheter body 1 80-120 mm away from the root part of the pigtail loop-shaped structure 2, so that the drainage of juice in a non-narrow section is facilitated. A traction wire 5 made of an operation suture is pre-embedded in the drainage catheter body 1; the direction of front end pigtail circle can be adjusted to this pull wire for pigtail circle shape remains stable, and the size and the direction of person's of facilitating the use control front end pigtail circle make pigtail circle head top on the drainage tube body and can not misplace. The state of use of the utility model is shown in figure 3.

The parts not involved in the present invention are the same as or can be implemented using the prior art.

Claims

1. The utility model provides a disposable percutaneous transhepatic cholangiosis internal drainage pipe, it includes drainage catheter body (1), the front end of drainage catheter body (1) is pigtail-shaped structure (2), characterized by: the pigtail loop-shaped structure (2) is spirally curled, the end part of the pigtail loop-shaped structure is a conical structure (4), and a plurality of drainage holes (3) are spirally formed in the pigtail loop-shaped structure (2); a traction wire (5) is pre-buried in the drainage catheter body (1); the direction of front end pigtail circle can be adjusted to this pull wire for pigtail circle shape remains stable, and convenience of customers controls the size and the direction of front end pigtail circle.

2. The disposable percutaneous transhepatic intrabiliary drainage tube of claim 1, wherein: the traction wire (5) is an operation suture.

3. The disposable percutaneous transhepatic intrabiliary drainage tube of claim 1, wherein: the drainage catheter body (1) is a polyurethane product with better softness, so that the drainage catheter is beneficial to easily following the cavity and tract of a human body to advance.

4. The disposable percutaneous transhepatic intrabiliary drainage tube of claim 1, wherein: the traction wire (5) can ensure that the head of the pigtail coil is supported on the drainage tube body without dislocation.

5. The disposable percutaneous transhepatic intrabiliary drainage tube of claim 1, wherein: the drainage holes (3) are arranged on the pigtail ring-shaped structure (2) in 360 degrees.

6. The disposable percutaneous transhepatic intrabiliary drainage tube of claim 1, wherein: a plurality of bile inlet holes (7) are arranged on the drainage catheter body (1) 80-120 mm away from the root of the pigtail ring-shaped structure (2).