基于SL-SMC生理组合控制器的双心辅助控制系统的性能研究
Fangqun Wang1, Fan Xu1, Fenglian Zhu1
1Jiangsu University, Zhenjiang, Jiangsu, China.
The International journal of artificial organs
|September 23, 2024
概括
这项研究引入了一种用于双心室辅助器件 (BiVAD) 的新生理控制器,用于管理双心室心力衰竭. 新的控制器有效地防止腹腔吸收,并在生理变化期间保持平衡的血液流动.
科学领域:
- 生物医学工程 生物医学工程
- 心血管生理学心血管生理学
- 控制系统 控制系统
背景情况:
- 双心室辅助器件 (BiVAD) 在平衡全身血流和预防双心室心力衰竭患者心室吸血方面面临挑战.
- 在生理活动变化期间保持血液动力稳定对于BiVAD疗效至关重要.
研究的目的:
- 开发和评估一个新的生理组合控制器,用于双循环系统 (BCS).
- 评估控制器在管理血液动力学参数和防止在各种生理条件下腹腔吸收方面的有效性.
主要方法:
- 构建了一个双胞胎循环系统 (BCS) 模型.
- 设计了一种整合了Starling-Like和滑动模式控制 (SL-SMC) 原则的生理组合控制器.
- 对高肺动脉阻力和休息运动场景进行模拟,将SL-SMC与常速 (CS) 和Starling-like和PI控制 (SL-PI) 进行比较.
主要成果:
- SL-SMC控制器在预防心室吸管方面表现出有效性.
- SL-SMC控制器提供了更高的心脏输出,并保持了更好的系统血流平衡.
- 在模拟生理状态变化期间,SL-SMC控制器表现出卓越的响应速度和稳定性.
结论:
- 拟议的Starling-like和滑动模式控制 (SL-SMC) 生理组合控制器是BiVAD系统的一个有希望的方法.
- SL-SMC增强了血液动力稳定性,改善了心脏输出,并确保了双心室性心力衰竭的BiVAD患者的健壮性.
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