Title:
BRANCH STENT
Document Type and Number:
WIPO Patent Application WO/2023/125385
Kind Code:
A1
Abstract:
A branch stent (100), comprising a stent body (200) and a skirt structure (260) arranged on the stent body (200). The stent body (200) comprises a stent main body (210) and a main body covering film (220) arranged on the stent main body (210); the skirt structure (260) comprises a sealing stent segment (400) connected to the stent body (200) and a fixing stent segment (300) connected to the sealing stent segment (400), and the skirt structure (260) is provided with a developing structure (270). The branch stent (100) seals a vascular stent branch opening (720) by means of the sealing stent segment (400) to prevent endoleaks. Furthermore, the fixing stent segment (300) may be folded, and, after being released from a delivery sheath, the fixing stent segment (300) is automatically folded, thereby preventing the branch stent (100) from moving. In addition, the skirt structure (260) is provided with the developing structure (270) to display the state presented after the skirt structure (260) is released from the delivery sheath, thus facilitating observation by an operator.
Inventors:
LIU TANGJIE (CN)
XIAO BENHAO (CN)
XIAO BENHAO (CN)
Application Number:
PCT/CN2022/141842
Publication Date:
July 06, 2023
Filing Date:
December 26, 2022
Export Citation:
Assignee:
LIFETECH SCIENT SHENZHEN CO (CN)
International Classes:
A61F2/07
Foreign References:
| CN107157616A | 2017-09-15 | |||
| CN111870392A | 2020-11-03 | |||
| CN110613531A | 2019-12-27 | |||
| CN110623780A | 2019-12-31 | |||
| CN201949182U | 2011-08-31 | |||
| CN213722659U | 2021-07-20 | |||
| JP2018051259A | 2018-04-05 |
Attorney, Agent or Firm:
BEIJING CHEN QUAN INTELLECTUAL PROPERTY LAW FIRM (CN)
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