Development and Application of Catheter Electrodes for Rat Airway High-Voltage Pulsed Electric Field Ablation

  • Nana Zhang
  • , Yirong An
  • , Jiawei Tian
  • , Xuan Han
  • , Shen'ao Qu
  • , Haoze Leng
  • , Shiran Tao
  • , Fenggang Ren
  • , Yi Lyu
  • , Haoyang Zhu

Research output: Contribution to journalArticlepeer-review

Abstract

高压脉冲电场消融技术在慢性阻塞性肺疾病(chronic obstructive pulmonary disease, COPD)的临床治疗中展现出广阔的应用前景。然而,该技术目前仅在小样本的临床病例中进行了初步应用,其具体治疗机制尚未阐明。为了加速其临床应用进程,迫切需要通过大量动物实验来探究相关分子机制。大鼠相较于其他实验动物,更易于构建COPD模型,并且拥有相对完备的组织和分子学实验试剂是进行探究脉冲电场消融COPD机制研究的理想模型。因此,开发适用于SD大鼠呼吸道的消融导管电极尤为重要。该研究首先观察了大鼠的气道解剖结构,并对导管的材质、硬度、直径、电极环尺寸、正负极间距、导管的绝缘处理、导丝与电极环的焊接技术,以及导管通气孔等关键设备参数进行了深入调研。在此基础上,制备了一种带有通气功能的PVC消融电极导管。接下来,利用COMSOL软件模拟了该电极可施加的场强,并在正常大鼠中进行了验证,以评估电极的电学安全性和有效性。这些研究成果为后续高压脉冲电场治疗COPD的相关机制研究奠定了实践基础。.

Original languageEnglish
Pages (from-to)568-572
Number of pages5
JournalZhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation
Volume48
Issue number5
DOIs
StatePublished - 30 Sep 2024
Externally publishedYes

Keywords

  • airway ablation
  • catheter electrode
  • chronic obstructive pulmonary disease (COPD)
  • high-voltage pulsed electric field

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