Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Biliary stent

A common bile duct and inner bile duct technology, applied in the field of biliary stents, can solve problems such as endoscopic passage

Active Publication Date: 2021-11-26
MICRO TECH (NANJING) CO LTD +1
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All of the above surgeries are invasive and carry certain risks.
[0004] However, due to the deep position of the intrahepatic bile duct and the small diameter of the hepatic duct, especially when the intrahepatic bile duct is stenotic, there is often no effective channel for the endoscope to pass through for lithotripsy and stone removal.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Biliary stent
  • Biliary stent
  • Biliary stent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0029] First, refer to Figure 1 to Figure 3 Introduce the structure of the biliary system stent 10 according to the embodiment of the present invention, wherein figure 1 , figure 2 , image 3 They are a schematic perspective view, a sectional view and a front view of the biliary stent 10, respectively.

[0030] Such as figure 1 As shown, the biliary stent 10 according to the embodiment of the present invention includes a first tubular stent 11 and a second tubular stent 12 . The first tubular stent 11 has a proximal opening 11a, a distal opening 11b, and a tubular body 11c exten...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a biliary stent which comprises a first tubular stent and a second tubular stent, and the first tubular stent is provided with a near-end opening, a far-end opening and a tube body extending between the near-end opening and the far-end opening. A first end of the second tubular stent is inserted into the first tubular stent from the near-end opening and is fixed to the first tubular stent to form a nested section, and the diameter of the first tubular stent is larger than that of the second tubular stent, so that the second tubular stent has a nesting section such that a passage is formed in the nesting section between an inner wall of the first tubular stent and an outer wall of the second tubular stent, the passage communicating with the outside through the far-end opening of the first tubular stent. According to the biliary stent provided by the embodiment of the invention, the possibility is provided for realizing a minimally invasive surgery of taking broken stones or draining through a gallbladder duct or a hepatic duct.

Description

technical field [0001] The invention relates to a medical device, in particular to a biliary system bracket, which can be used for removing stones from the gallbladder, removing stones or drainage from the left or right hepatic duct. Background technique [0002] Cholelithiasis refers to a disease in which stones occur in the biliary system, including the gallbladder or hepatic bile ducts. It mainly includes gallbladder stones, common bile duct stones and intrahepatic and external bile duct stones. Among them, there are many clinical treatment methods for choledocholithiasis and extrahepatic bile duct stones, and the technology is mature, and stone removal can be performed from laparoscopy to endoscopy; for gallbladder stones and intrahepatic bile duct stones, due to the structure of the cystic duct and intrahepatic bile duct Relatively speaking, the treatment methods are limited, and the current clinical stone removal methods are all invasive operations. [0003] For gall...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/221A61B17/00
CPCA61B17/221A61B17/00234A61B2017/2215A61B2017/0034
Inventor 冯亚东施瑞华李媛媛徐伟孙亿民沈正华冷德嵘
Owner MICRO TECH (NANJING) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com