SHENG, Chang,HUANG, Yunteng,ZHENG, Zhongwei,QIAN, Wei,YAN, Hang
申请号：
EP17928900
公开号：
EP3673948A1
申请日:
2017.10.17
申请国别(地区):
EP
年份:
2020
代理人:
摘要：
an dilatable balloon catheter, comprising: a guide wire (2) inserted and disposed in the inside of the catheter (1), an operation portion (3) is fixedly connected to one end of the catheter (1), a balloon (4) is disposed at the outer side of the catheter (1) remote from the operation portion (3), the lumen of the catheter (1) and the inner cavity of the balloon (4) are connected by an communication structure provided on the catheter (1), the guide wire includes a first guide wire (21) and a second guide wire (22) which are separated from each other, the rear end of the first guide wire (21) is connected to insertion-extraction structure in the rear end of the operation portion (3), the second guide wire (22) is fixed to the inside of the catheter (1) by a fixing process. The guide wire (2) of the dilatable balloon catheter and the liquid injection lumen can share the same lumen, greatly reducing the diameter of the catheter (1) in the present invention, so that the dilatable balloon catheter can be inserted into a narrow duct or lumen that needs to be expanded in human body through an device channel of an endoscope, and realize visualization operation.
