基于图像的力量定位和估计的微尺度连续导线机器人导线机器人
Timothy A Brumfiel1, Ronghuai Qi1, Sharan Ravigopal1
1Medical Robotics and Automation (RoboMed) Laboratory, Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA.
IEEE transactions on medical robotics and bionics
|August 26, 2024
概括
这项研究介绍了一个带有增强力感应能力的机器人导线系统. 这种创新方法通过精确估计沿着导线的力量,提高了血管内手术期间的方向性和安全性.
科学领域:
- 医疗机器人 医疗机器人
- 生物机械工程 生物机械工程
- 手术导航 手术导航
背景情况:
- 血管内手术依赖于导线,由于控制有限,造成血管损伤的风险.
- 目前的导线技术缺乏精确的力反,阻碍了准确的导航并增加了并发症风险.
- 机器人导线提供了改善方向性和内在力感应的潜力,但在传感器集成和力分布解释方面面临挑战.
研究的目的:
- 开发和验证一种方法来估计和定位沿着微型机器人导线的力量.
- 通过结合摩擦和歇斯底里模型来提高力感应的准确性.
- 通过先进的导线控制,提高血管内干预的安全性和有效性.
主要方法:
- 利用图像反和Cosserat棒模型进行力估计和定位.
- 开发了一个微型肌驱动的导线机器人.
- 将摩擦和歇斯底里斯模型纳入力感应框架.
- 在重力负荷下在尼丁醇管上测试了该模型.
主要成果:
- 在形状预测中实现了0.46mm的平均根平均平方误差 (RMSE).
- 摩擦和歇斯底里补偿改善了180度曲的形状预测RMSE到1.22毫米,优于未补偿模型 (1.62毫米RMSE).
- 局部力量的平均误差为4.79mm (长度的5.15%) 和估计的大小的平均误差为13.03mN.
结论:
- 呈现的图像引导的Cosserat棒模型有效地估计和定位微尺度机器人导线上的力量.
- 摩擦和歇斯底里模型显著提高了形状和力预测的准确性.
- 这项技术有望改善微创血管内手术的控制和安全性.
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