气管支架材料置入后的生物力学特点及其生物相容性

Biocompatibility and biomechanics of tracheal stents after implantation

气管支架中不论是镍钛记忆合金支架和"Z"型不锈钢支架、硅酮支架、多聚酯支架、和动力支架,其支架材料的改进更新均以改善生物相容性和生物力学性能为目标。气管支架的生物相容性是一个复杂的连锁过程;利用有限元分析气管支架材料的力学特性可为未来支架的优化设计提供有益的帮助。文章分析了气管支架材料的特点,探讨了气管支架材料置入后生物力学与生物相容性的研究现状。现行的气管支架已经有了很大的进步与发展,但理想的气管支架还有待进一步的深入开发与研究。

Improvement of biocompatibility and biomechanics is the goal in modification of tracheal stents, such as Ni-Ti memory alloy, Z-shaped stainless steel, silicone, polyadenylic acid or dynamic stents. The biocompatibility of tracheal stents is a complex linkage. Finite element analysis of mechanical properties of tracheal stents helps optimal design of the stents. This paper analyzed the characteristics of tracheal stents, and discussed biocompatibility and biomechanics of tracheal stents after implantation. Although there has been great progress in tracheal stents, ideal stents need further development and exploration.