发明名称 |
Dual Balloon Biliary Stone Extraction Device |
摘要 |
The present invention is directed to a method and apparatus for selective guide wire cannulation of a bile duct, removal of biliary calculi, and delivering hydrodynamic gene delivery are also provided. There is provided a method for straightening the terminal common bile duct to allow biliary calculi to be removed, assisting in creation of a gastoejunostomy, and selective guidewire cannulation. A method for isolating a segment of biliary epithelium for hydrodynamic gene delivery is also provided, in which a segment of the bile duct is isolated and plasmids (oncogenic or therapeutic) are injected under pressure to allow entry into cholangiocytes. There is also provided a method for isolating the cystic duct or left/right intrahepatic ducts to allow the insertion of a guide wire and subsequent therapy. A single catheter platform may be used to perform the above procedures. |
申请公布号 |
US2015150572(A1) |
申请公布日期 |
2015.06.04 |
申请号 |
US201414560078 |
申请日期 |
2014.12.04 |
申请人 |
THE JOHNS HOPKINS UNIVERSITY |
发明人 |
Kumbhari Vivek;Khashab Mouen;Selaru Florin |
分类号 |
A61B17/22;A61M25/10;A61B17/12 |
主分类号 |
A61B17/22 |
代理机构 |
|
代理人 |
|
主权项 |
1. A method for cannulation of a duct comprising:
inserting a catheter device into the duct, wherein the catheter device includes dual balloons positioned in series proximal to a distal end of the catheter device and wherein the dual balloons are independently inflatable; inflating at least one of the balloons to just above a size of the duct to create a closed space; and removing the catheter device from the duct. |
地址 |
Baltimore MD US |