Title:
ANTI-MIGRATION STENT AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/128784
Kind Code:
A1
Abstract:
Embodiments of the present application provide an anti-migration stent and a manufacturing method therefor, pertaining to the technical field of medical instruments. The anti-migration stent provided by the embodiments of the present application comprises a body and a bare frame arranged outside the body. The bare frame comprises an anti-separation portion and a connection portion connected to one end of the anti-separation portion, and the connection portion is connected to the body, thereby connecting the bare frame to the body. One end of the anti-separation portion located away from the connection portion is configured to form a growth space with the body, and the anti-separation portion is provided with a plurality of anti-separation holes in communication with the growth space. When the anti-migration stent is implanted into a human body lumen, tissue enters the growth space through the anti-separation holes and grows in the growth space so as to secure the anti-migration stent and prevent the stent from migrating. In addition, since the connection portion is arranged at one end of the anti-separation portion, the end of the anti-separation portion located away from the connection portion forms an opening in communication with the growth space, obtaining a large growth space and achieving a better anti-separation effect.
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Inventors:
GUO JINHE (CN)
LU JIAN (CN)
ZHU GUANGYU (CN)
WEI JIANYU (CN)
SHEN ZHENGHUA (CN)
FENG MINGHAO (CN)
LI YUQIAN (CN)
LU JIAN (CN)
ZHU GUANGYU (CN)
WEI JIANYU (CN)
SHEN ZHENGHUA (CN)
FENG MINGHAO (CN)
LI YUQIAN (CN)
Application Number:
PCT/CN2020/098605
Publication Date:
July 01, 2021
Filing Date:
June 28, 2020
Export Citation:
Assignee:
MICRO TECH NANJING CO LTD (CN)
ZHONGDA HOSPITAL SOUTHEAST UNIV (CN)
ZHONGDA HOSPITAL SOUTHEAST UNIV (CN)
International Classes:
A61F2/04; A61F2/852
Domestic Patent References:
| WO2018183252A1 | 2018-10-04 |
Foreign References:
| CN102438558A | 2012-05-02 | |||
| CN102438558A | 2012-05-02 | |||
| US20180125630A1 | 2018-05-10 | |||
| US5443500A | 1995-08-22 | |||
| CN110381886A | 2019-10-25 |
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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