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Sensorization of a Surgical Robotic Instrument for Force Sensing

机译:外科机器人的力感测技术

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摘要

This paper presents the development and application of an approach for sensorizing a surgical robotic instrument for two degree-of-freedom (DOF) lateral force sensing. The sensorized instrument is compatible with the da Vinci Surgical System and can be used for skills assessment and force control in specific surgical tasks. The sensing technology utilizes a novel layout of four fiber Bragg grating (FBG) sensors attached to the shaft of a da Vinci surgical instrument. The two cross-section layout is insensitive to error caused by combined force and torque loads, and the orientation of the sensors minimizes the condition number of the instrument's compliance matrix. To evaluate the instrument's sensing capabilities, its performance was tested using a commercially available force-torque sensor, and showed a resolution of 0.05N at 1 kHz sampling rate. The performance of the sensorized instrument was evaluated by performing three surgical tasks on phantom tissue using the da Vinci system with the da Vinci Research Kit (dVRK): tissue palpation, knot tightening during suturing and Hem-O-Lok tightening during knotless suturing. The tasks were designed to demonstrate the robustness of the sensorized force measurement approach. The paper reports the results of further evaluation by a group of expert and novice surgeons performing the three tasks mentioned above.
机译:本文介绍了一种用于对两自由度(DOF)横向力感测的外科手术机器人进行传感的方法的开发和应用。该传感器化仪器与达芬奇手术系统兼容,可用于特定手术任务中的技能评估和力控制。传感技术采用了新颖的布局,将四个光纤布拉格光栅(FBG)传感器连接到达芬奇手术器械的轴上。这两个横截面的布局对由力和扭矩负载共同引起的误差不敏感,并且传感器的方向使仪器的柔度矩阵的条件数最小化。为了评估该仪器的感测能力,使用市售的扭矩传感器测试了其性能,并在1 kHz采样率下显示出0.05N的分辨率。通过使用达芬奇系统和达芬奇研究工具包(dVRK)在达芬奇系统上对幻影组织执行三项外科手术任务,评估了感测仪器的性能:组织触诊,缝合过程中的结节收紧和无结缝合过程中的Hem-O-Lok收紧。这些任务旨在证明传感力测量方法的鲁棒性。该论文报告了一组由专家和新手执行的上述三项任务的进一步评估结果。

著录项

  • 来源
  • 会议地点 San Francisco CA(US)
  • 作者单位

    Dept. of Elec. and Comp. Western University, 1151 Richmond St. London, Canada;

    Dept. of Elec. and Comp. Western University, 1151 Richmond St. London, Canada,Canadian Surgical Technologies and Advanced Robotics (CSTAR), Lawson Health Research Institute, 339 Windermere Rd., London, Canada;

    Dept. of Elec. and Comp. Western University, 1151 Richmond St. London, Canada,Canadian Surgical Technologies and Advanced Robotics (CSTAR), Lawson Health Research Institute, 339 Windermere Rd., London, Canada;

    Dept. of Elec. and Comp. Western University, 1151 Richmond St. London, Canada,Canadian Surgical Technologies and Advanced Robotics (CSTAR), Lawson Health Research Institute, 339 Windermere Rd., London, Canada,Dept. of Surgery, Western University, 1151 Richmond St., London, Canada;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Surgical Robotics; da Vinci Robot; FBG; Force Sensing; Suturing; Palpation; Hem-O-Lok;

    机译:外科机器人达芬奇机器人; FBG;力感应缝合;触诊;下摆乐;

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