Title:
STENT AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/016102
Kind Code:
A1
Abstract:
A stent and a preparation method therefor. The preparation method comprises: step 1, weaving a single or single-strand metal wire into a cylindrical tubular stent (1); step 2, spirally feeding a single or a plurality of metal wires into sinker loops of a specified penetrating-in position (3) and penetrating-out position (4) of the cylindrical tubular stent (1) according to requirements of a screw pitch, the number of the metal wires, a spiral direction, and a penetrating and sleeving period, so as to obtain a semi-finished product; and step 3, penetrating and sleeving the semi-finished product on a core rod, fixing two ends, then performing heat setting, and demolding to obtain the stent. The prepared stent comprises the cylindrical tubular stent (1) and the single or plurality of spiral metal wires (2); the spiral central axis of the spiral metal wire (2) coincides with the central axis of the cylindrical tubular stent (1); the spiral metal wire (2) is sleeved on the whole area or one section of the cylindrical tubular stent (1) in a penetrating manner, and the penetrating-in position (3) and the penetrating-out position (4) of the spiral metal wire (2) are located in the sinker loops of the cylindrical tubular stent (1). The stent is good in radial enhancement effect, good in recoverability and good in flexibility.
Inventors:
LIN JING (CN)
WANG LU (CN)
GUO AIJUN (CN)
WANG FUJUN (CN)
GUAN GUOPING (CN)
LEI CHIWENG (CN)
WANG LU (CN)
GUO AIJUN (CN)
WANG FUJUN (CN)
GUAN GUOPING (CN)
LEI CHIWENG (CN)
Application Number:
PCT/CN2022/100908
Publication Date:
February 16, 2023
Filing Date:
June 23, 2022
Export Citation:
Assignee:
USHARE MEDICAL INC (CN)
UNIV DONGHUA (CN)
UNIV DONGHUA (CN)
International Classes:
A61F2/88; A61F2/86
Foreign References:
| CN113813090A | 2021-12-21 | |||
| CN107468391A | 2017-12-15 | |||
| CN101683537A | 2010-03-31 | |||
| CN1389271A | 2003-01-08 | |||
| CN107536658A | 2018-01-05 | |||
| US20200214858A1 | 2020-07-09 | |||
| JP2008086339A | 2008-04-17 | |||
| US20040133272A1 | 2004-07-08 |
Attorney, Agent or Firm:
TONGSHE INTELLECTUAL PROPERTY AGENCY (CN)
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