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相关实验视频

Updated: Jun 15, 2025

A Novel Approach to Monitoring Graft Neovascularization in the Human Gingiva
07:51

A Novel Approach to Monitoring Graft Neovascularization in the Human Gingiva

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纳利克斯设备故障机制 分析破碎的植入物.

Léna Christ1, Salomé Kuntz1,2, Damir Vakhitov1,3

  • 1GEPROMED, Strasbourg, France.

Journal of endovascular therapy : an official journal of the International Society of Endovascular Specialists
|August 27, 2024
PubMed
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在Nellix内血管动脉瘤密封装置中的聚合物降解可能导致设备故障,导致内脏泄漏和迁移. 由于设备性能不可预测,患者需要终身监测.

科学领域:

  • 生物材料科学 生物材料科学
  • 医疗设备工程 医疗设备工程
  • 血管外科 血管外科

背景情况:

  • 用于内血管动脉瘤密封 (EVAS) 的Nellix设备的耐用性不佳.
  • 了解EVAS设备的材料降解对于患者安全至关重要.

研究的目的:

  • 为了调查Nellix EVAS设备耐用性差的原因.
  • 检查设备的聚合物内囊和金属支架的结构完整性.

主要方法:

  • 对21个解释的Nellix内脏假体进行分析.
  • 对支架结构的视觉检查和对聚合物内囊的仪器检查.
  • 在模拟植入条件下对聚合物样本进行体外试验 (湿和干暴露).

主要成果:

  • 在76%的金属支架和95%的内脏袋中发现了阳性缺陷.
  • 由于降解而导致的聚合物分解发生在71%的病例中.
  • 降解的聚合物在脱水后损失了显著的重量和体积,在盐水中部分恢复.

结论:

  • 聚合物降解,在脱水过程中体重和体积损失的证据,是Nellix设备故障的可能原因.
关键词:
一个大动脉动脉瘤.降解降解降解降解降解.内部泄密是什么意思 内部泄密是什么意思末端假体是一种内置假体.血管假肢是一种血管假肢.

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  • 这种降解可能会导致末端泄漏和设备迁移.
  • 接受Nellix内脏移植的患者需要加强终身监测,因为性能不可预测,设备可能出现故障.