Model-following control of assisted robotics in CABG surgery

LIANG Fan; MENG Xiao-feng; DONG Deng-feng

doi:10.3788/OPE.20122001.0131

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Model-following control of assisted robotics in CABG surgery

Article | 更新时间：2020-08-12

- Model-following control of assisted robotics in CABG surgery
- Optics and Precision Engineering Vol. 20, Issue 1, Pages: 131-139(2012)
- 作者机构：
  
  北京航空航天大学精密仪器科学与光电工程学院北京,100191
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20122001.0131
  CLC： TP242.6
- Received：20 July 2011，
  
  Revised：14 September 2011，
  
  Published Online：25 January 2012，
  
  Published：25 January 2012
- 稿件说明：
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梁帆, 孟晓风, 董登峰. 心脏动脉旁路手术中手术辅助机器人的模型跟随控制[J]. 光学精密工程, 2012,20(1): 131-139

LIANG Fan, MENG Xiao-feng, DONG Deng-feng. Model-following control of assisted robotics in CABG surgery[J]. Editorial Office of Optics and Precision Engineering, 2012,20(1): 131-139
梁帆, 孟晓风, 董登峰. 心脏动脉旁路手术中手术辅助机器人的模型跟随控制[J]. 光学精密工程, 2012,20(1): 131-139 DOI： 10.3788/OPE.20122001.0131.

LIANG Fan, MENG Xiao-feng, DONG Deng-feng. Model-following control of assisted robotics in CABG surgery[J]. Editorial Office of Optics and Precision Engineering, 2012,20(1): 131-139 DOI： 10.3788/OPE.20122001.0131.

摘要

为了使非体外循环心脏动脉旁路移植(CABG)手术中的手术辅助机器人能快速、准确地跟踪心脏表面手术点的运动

消除心脏与手术工具的相对运动

提出了心脏运动信号的自适应时变线性回归模型

将对心脏信号的跟踪问题转化为对心脏运动信号模型的运动跟随问题。应用卡尔曼滤波器动态估计手术辅助机器人系统的运动状态

并结合最优跟踪理论实现了基于心脏运动模型的随动跟踪控制。实验结果表明

与以往的相动运动消除算法相比

运用模型跟随控制算法的机器人系统能将相对运动消除能力提高30%

跟踪误差减小0.25 mm。因此

基于心脏运动自适应模型跟随算法能够进一步消除CAGB心脏手术中的相对运动

大大减小了动态跟踪误差。

Abstract

In the Off Pump Canary Artery Bypass Graphed (CABG) surgery

a robot is usually used to dynamically track the Point of Interest (POI) on the beating heart. To achieve better tracking performance and cancel the relative motion of the heart and the assisted robotics

an adaptive Auto-regessive (AR) linear model of heart motion was built to convert the complicated heart motion tracking problem to a dynamic model following problem. The Kalman filter was used to estimate the motion state of the assisted system and the linear quadratic optimal tracking theory was used to implement the model-following method. The results show that the model-following method which provides estimated future reference enables the robot to improve the relative motion cancellation ability by 30% and decrease the tracking error by 0.25 mm. The comparison tracking result on 3D test bed Phantom robotics is reported

which proves that the model-following method enhances the ability of dynamic relative motion cancellation during the CABG sugary.

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references

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Related Institution

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Academy of Opto-electronics, Chinese Academy of Sciences, Beijing 100094, China

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