设计,建模和控制一个同轴对齐可引导 (COAST) 导线机器人
Seokhwan Jeong1, Yash Chitalia1, Jaydev P Desai1
1Medical Robotics and Automation (RoboMed) Laboratory, Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA.
概括
这项研究介绍了COAST导线机器人,这是一种用于内血管干预的新型可引导装置. 它独特的设计能够通过复杂的血管解剖学进行精确的导航,提高程序效率和结果.
科学领域:
- 医疗机器人 医疗机器人
- 生物医学工程 生物医学工程
- 最少侵入性的手术
背景情况:
- 内血管干预依赖于手动导线导航,这往往是耗时的和不确定的扭曲的血管解剖学.
- 目前的导线技术在复杂的血管系统中面临着机动性和控制的局限性.
研究的目的:
- 介绍和设计一种新的微型可转向导线机器人,用于增强内血管导航.
- 为了展示COAST (协轴对齐可靠) 导线机器人在导航具有挑战性的解剖结构方面的能力.
主要方法:
- COAST导线机器人采用0.40毫米直径的设计,有三个同轴对齐的管和一个中央肌.
- 微加工的尼醇外管允许肌驱动,可变曲率曲,而内部不钢管控制曲长度.
- 模拟了动力学,静态学和管间合,并开发了一个控制器用于远端端控制.
主要成果:
- 科斯特导线机器人展示了可变曲率和独立控制的曲长度.
- 实验验证显示,通过幻影解剖分叉和曲的血管模型,导航是准确的.
- 通过调整管和肌的位置来实现"跟随领导者"的运动.
结论:
- 新的COAST导线机器人为克服手动导线导航在内血管手术中的局限性提供了一个有希望的解决方案.
- 这项技术有可能提高微创血管干预的精度,效率和成功率.
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