Title:
ASSISTED STENT DELIVERY DEVICE AND STENT DELIVERY METHOD
Document Type and Number:
WIPO Patent Application WO/2020/047877
Kind Code:
A1
Abstract:
An assisted stent delivery device (100) and a stent delivery method, for use in deploying a stent to a stent cavity of a stent delivery device. The assisted stent delivery device (100) comprises a hollow stent accommodation tube (1) having both ends communicated with each other, a stent insertion member (2) fixed to the rear end of the stent accommodation tube (1), and a stent push member (3) matching the stent insertion member (2). The stent insertion member (2) has a hollow inner cavity channel (20). The stent push member (3) comprises a loading connector (31) and a push tube (32) connected to the front of the loading connector (31). The outer diameter of the push tube (32) is equal to the minimum inner diameter of the inner cavity channel (20) of the stent insertion member (2). When the loading connector (31) controls the push tube (32) to insert into the inner cavity channel (20) of the stent insertion member (2), the push tube (32) can be inserted into the stent accommodation tube (1) while tightly attaching to the inner wall at the minimum inner diameter of the stent insertion member (2). The assisted stent delivery device (100) and the stent delivery method do not need to deploy a stent in a stent push device for a long period of time in advance, and can avoid the loss of inflation/dilation force due to that the stent is deployed in the stent push device for a long period of time in advance, such that the stent has an increased use duration and a good practical value.
Inventors:
ZHENG ZHONGWEI (CN)
YAN HANG (CN)
YAN HANG (CN)
Application Number:
PCT/CN2018/104738
Publication Date:
March 12, 2020
Filing Date:
September 09, 2018
Export Citation:
Assignee:
SHANGHAI ELITEK BIOSCIENCES CO LTD (CN)
International Classes:
A61F2/97
Foreign References:
| CN102014792A | 2011-04-13 | |||
| CN106333774A | 2017-01-18 | |||
| CN106264808A | 2017-01-04 | |||
| CN107080604A | 2017-08-22 | |||
| US6221097B1 | 2001-04-24 | |||
| US20020138128A1 | 2002-09-26 |
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