通过合成材料穿过septal访问:射频和基于针的技术的体外比较研究
Maxwell R Klein1, Dominic P Recco2, Nicholas E Kneier3
1Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts.
Heart rhythm
|July 27, 2025
概括
射频 (RF) 设备有效地穿孔用于先天性心脏病 (CHD) 手术的材料,除了扩展聚四乙烯 (ePTFE). 金属针是具有成本效益的,但对于一些材料 (如聚) 需要更高的力.
科学领域:
- 心血管外科心血管外科
- 生物材料科学 生物材料科学
- 医疗设备工程 医疗设备工程
背景情况:
- 对心脏左侧的截面通道对于各种手术至关重要.
- 目前的穿刺器件包括金属针和射频 (RF) 针/线.
- 这些设备在先天性心脏病 (CHD) 手术中使用的材料上的性能尚不清楚.
研究的目的:
- 为了比较商业上可用的跨septal设备的穿孔疗效.
- 评价器件在与心脏病手术相关的材料上的性能,包括扩展聚四乙烯 (ePTFE),聚和牛心周.
主要方法:
- 在试验室中使用了一种跨septal模型.
- 测试的设备:金属针,射频针,射频线.
- 主要结果:RF设备的RF脉冲数,金属针的峰值力.
主要成果:
- 射频设备以低功率的单个射频脉冲穿透了聚和牛心脏.
- 对于ePTFE,RF线需要多个脉冲;RF针失败了.
- 与射频设备相比,聚和ePTFE的金属针需要显著更高的力.
结论:
- 射频跨septal平台是有效的本地,聚和牛心膜.
- 金属针是原生隔膜,EPTFE和牛心膜的经济有效选择.
- 建议谨慎使用金属针在聚上,因为高强度要求.
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