Title:
STENT COMPRISING BIODEGRADABLE POLYMER AND NITINOL, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/138670
Kind Code:
A1
Abstract:
The present invention relates to a stent comprising a biodegradable polymer and nitinol, and a manufacturing method therefor. More specifically, the present invention relates to a stent comprising a biodegradable polymer and nitinol, and a manufacturing method therefor, wherein a zigzag-type nitinol ring is formed to be positioned at regular intervals; the nitinol ring is coated with a biodegradable polymer to prepare a stent; the stent is manufactured by using 3D printing; due to the biodegradable polymer in the stent, the stent has remarkably excellent elasticity compared to a general metal stent, and has excellent flexibility, so as to be easily used for the knees, joints, or the like; and after being inserted into a user's blood vessel, the biodegradable polymer is impregnated in the blood vessel, and only the first stent in the zigzag form, which is manufactured to have a minimum thickness, remains and is embedded in the cells in the blood vessel, thereby being capable of significantly lowering blood vessel irritation.
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Inventors:
CHO DONG WOO (KR)
HA DONG HEON (KR)
LEE HAN CHEOL (KR)
HA DONG HEON (KR)
LEE HAN CHEOL (KR)
Application Number:
PCT/KR2019/013696
Publication Date:
July 02, 2020
Filing Date:
October 18, 2019
Export Citation:
Assignee:
NAT UNIV PUSAN IND UNIV COOP FOUND (KR)
POSTECH ACAD IND FOUND (KR)
POSTECH ACAD IND FOUND (KR)
International Classes:
A61F2/89; A61F2/915; A61L31/02; A61L31/10; A61L31/14; B22F3/105; B29C64/118
Foreign References:
| US20080114450A1 | 2008-05-15 | |||
| CN105771003A | 2016-07-20 | |||
| JP2016524944A | 2016-08-22 | |||
| JP2008220811A | 2008-09-25 | |||
| KR20160065091A | 2016-06-08 |
Attorney, Agent or Firm:
KIM, Jong Seok (KR)
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