为COAST导线机器人设计和建模一个紧的卷轴机制
Timothy A Brumfiel1, Jared Grinberg2, Betina Siopongco2
1Medical Robotics and Automation (RoboMed) Laboratory, Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA 30332 USA.
概括
这项研究引入了COaxially Aligned STeerable (COAST) 机器人导线的紧螺旋机制,使得临床上具有相关性的1.5米长度. 这项创新解决了机器人导线系统的局限性,改善了血管内手术的方向性.
科学领域:
- 生物医学工程 生物医学工程
- 医疗机器人 医疗机器人
- 干预心脏病学 干预心脏病学
背景情况:
- 在血管内程序中手动导线操纵缺乏尖端控制,并可能损害血管.
- 现有的机器人导线因长度短或操作系统庞大而受到限制,这阻碍了临床使用.
研究的目的:
- 为了开发一个紧的卷轴机制,用于COaxially Aligned STeerable (COAST) 机器人导线.
- 为了使机器人导线的临床可行长度为1.5米.
- 用新机制建模和验证机器人导线的动力学.
主要方法:
- 开发了一种紧的卷轴机制,内装有具,用于启动COAST导线.
- 机器人导线的动力建模,结合来自螺旋机制的摩擦力.
- 校准螺旋机制的执行器,并验证导线的动力学.
主要成果:
- 成功开发了一种能够分发1.5米机器人导线的紧卷轴机制.
- 导线动力学被建模,考虑到机械诱导的摩擦.
- 验证证实了导线的动力性能,平均曲率RMSE为0.24m-1.
结论:
- 开发的紧型卷轴机制使COAST机器人导线系统通过提供足够的长度更具临床可行性.
- 动力学建模和验证证明了该系统在复杂的血管内环境中精确控制的潜力.
- 这一进步可以提高在需要导线导航的最小侵入性手术中的安全性和有效性.
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