PDO胆管覆膜支架的制备及其压缩性能

发布时间：2018-06-01 22:00

本文选题：胆管支架 + 静电纺　；参考：《东华大学学报(自然科学版)》2016年03期

【摘要】：采用3种不同直径的聚对二氧环己酮(PDO)单丝为原料,利用手工编织方法制备12种不同编织密度的胆管支架,通过静电纺覆膜方法分别对PDO胆管支架和临床用MTN-DA型镍钛合金胆管支架进行覆膜,获得PDO胆管覆膜支架以及MTN-DA型镍钛合金胆管覆膜支架,并通过试验探讨了其压缩性能.试验结果表明:PDO胆管覆膜支架的压缩力随着单丝直径和编织头数的增大而增大;弹性回复率随支架编织头数的增大而增大,PDO单丝直径显著影响PDO胆管覆膜支架的弹性回复率;单丝直径为0.29mm的12头PDO胆管覆膜支架,单丝直径为0.36mm的8、10和12头的PDO胆管覆膜支架的最大压缩力均大于MTN-DA型镍钛合金胆管覆膜支架.
[Abstract]:Twelve kinds of biliary stents with different braiding densities were prepared by hand braiding with three different diameters of poly (p-dioxanone) PDO) monofilament. The PDO bile duct stent and the clinical MTN-DA nickel titanium alloy bile duct stent were coated by electrostatic spinning method to obtain the PDO bile duct stent and the MTN-DA type nickel titanium alloy bile duct stent. The compression properties of the stent were investigated by experiments. The experimental results show that the compression force of PDO bile duct coated stent increases with the increase of monofilament diameter and braided head number, and the elastic recovery rate increases with the increase of braided head number of the scaffold, and the diameter of PDO monofilament significantly affects the elastic recovery rate of PDO bile duct coated stent. The maximum compression force of 12 PDO bile duct covered stents with 0.29mm diameter, 810 PDO bile duct covered stents with 0.36mm diameter and 12 PDO bile duct covered stents with 0.36mm diameter was higher than that of MTN-DA type Ni-Ti alloy bile duct coated stents.
【作者单位】：东华大学纺织面料技术教育部重点实验室;东华大学纺织学院;
【分类号】：R318.08

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