Capability of three types of biodegradable intravascular stent
- VernacularTitle:三种自制可降解性血管内支架的性能分析
- Author:
Hai-Shan YANG
;
Tian-Wei WANG
;
Yong-Sheng ZHAO
;
Xiao-Bin WANG
;
- Publication Type:Journal Article
- Keywords:
Biocompatible materials;
Stent;
Comparative study
- From:
Chinese Journal of Radiology
2001;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To develop and evaluate three types of biodegradable intravascular stent (BIS)with biodegradable materials of poly-L-acid(PLLA)or Poly](1-lactide-co-glycol ide)(PLLGA). Methods Forty-five spiral BISs(15 BISs for each type)were prepared with PLLA(153 kDa,type A), PLLGA(141 kDa,type B),and PLLGA(contains paclitaxel,141 kDa,type C).The physical and mechanical properties of the BIS were tested,including radial force,overlay rate,longitudinal shrinkage rate,and rate of expansion.Results The radial force of three types BIS was 15.7%/0.006 Mpa(type A), 16.3%/0.006 Mpa(type B),and 16.4%/0.006 Mpa(type C).The radial force of type A was greater than that of type B and C(P
