完全放电阶段. 完全放电阶段. 对用于外部除的双相波形的新方法
Y Yamanouchi1, J E Brewer, K F Olson
1Department of Cardiology, Cleveland Clinic Foundation, Cleveland, Ohio, USA.
Circulation
|August 24, 1999
概括
使用两个电容器优化双相波形提高了除功效. 一个相2电容大小为相1的1/3显示出更高的有效性,并确定了降低除能量的最佳组合.
科学领域:
- 心血管研究研究心血管研究
- 生物医学工程 生物医学工程
- 电子生理学 电子生理学
背景情况:
- 单电容双相波形在电压和脉冲宽度上有局限性,取决于相1的特征.
- 使用两个单独的输出电容器可以克服这些局限性,可能降低除门.
- 以前的研究表明,最佳倾斜角度超过70%.
研究的目的:
- 通过使用两个单独的,完全放电的电容器 (95%倾斜) 来确定最佳的双相波形.
- 调查一期和二期电容组合对除功效的影响.
主要方法:
- 在猪心室动模型中进行了两项外部除研究.
- 使用不同阶段-1和阶段-2电容值的组合生成波形.
- 根据储存的能量和电压要求,评估了除功效.
主要成果:
- 双相波形,其相2电容器在相1电容器的1/3处,通常显示出更高的除效率.
- 发现除的最佳组合是60/20和60/30微法拉德.
- 对于30微法拉德的相1电容器,相2电容器的大小比60微法拉德的相1电容器更为关键.
结论:
- 在使用两个单独的,完全放电的电容器时,二相电容器的大小显著影响了双相波形中的除能量减少.
- 这些发现为优化对外部除的双相波形设计提供了洞察力.
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