| 孟波,王存龙,朱宁,刘岩,崔福斋,孟庆圆.X线下可显影的高分子材料尿道支架[J].中国医学影像技术,2007,23(1):144~146 |
| X线下可显影的高分子材料尿道支架 |
| An X-ray-displayed polymer urethral stent |
| 投稿时间：2006-08-12 修订日期：2006-10-28 |
| DOI： |
| 中文关键词: 尿道狭窄 X线 支架 |
| 英文关键词:Urethral stricture X-ray Stent |
| 基金项目:本研究为北京市教委产业化资助项目(20051005)。 |
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| 中文摘要: |
| 目的 探讨一种X线下可显影新型高分子尿道支架在尿道狭窄治疗中的作用。方法 在高分子材料聚乳酸(PLA)中掺入硫酸钡(BaSO4)制成螺旋形尿道支架。结果 这种高分子尿道支架可在X线下清晰显影,并且在支架长期植入过程中持续保持相同程度的显影效果。支架植入过程中,无炎症反应。支架弹性和力学强度无改变。结论 由于高分子尿道支架的可显影性,便于进行术后检查,判断支架的位置、支架降解破碎的程度。同时不改变聚乳酸支架良好的生物相容性和力学性能。 |
| 英文摘要: |
| Objective To investigate the display effect under X-ray of a new polymer urethral stent used in treatment of urethral stricture. Methods The spiral urethral stent is made of Poly (l-lactide) (PLLA), adding barium sulphate (BaSO4) to certain content. Results The polymer urethral stent can be displayed precisely under X-ray. During the treatment, there were not any inflammations found. The mechanical properties of the stent are the same as those of the PLLA stent without BaSO4. Conclusion Because of the developable characteristic of the urethral stent, it is convenient to check the position and degradation degree of the stent after surgery. And the stent still has good biocompatible and mechanical properties. |
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