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Researchers from University of London Detail New Studies and Findings in the Area of Robotics (A Class of 2-Degree-of-Freedom Planar Remote...

August 4, 2014



Researchers from University of London Detail New Studies and Findings in the Area of Robotics (A Class of 2-Degree-of-Freedom Planar Remote Center-of-Motion Mechanisms Based on Virtual Parallelograms)

By a News Reporter-Staff News Editor at Robotics & Machine Learning -- Current study results on Robotics have been published. According to news reporting originating in London, United Kingdom, by VerticalNews journalists, research stated, "Robot-assisted minimally invasive surgery (MIS) has shown tremendous advances over the traditional technique. The remote center-of-motion (RCM) mechanism is one of the main components of a MIS robot."

The news reporters obtained a quote from the research from the University of London, "However, the widely used planar RCM mechanism, with double parallelogram structure, requires an active prismatic joint to drive the surgical tool move in-out of the patient's body cavity, which restricts the dexterity and the back-drivability of the robot to some extent. To solve this problem, a two degree-of-freedom (DOF) planar RCM mechanism type synthesis method is proposed. The basic principle is to construct virtual double parallelogram structure at any instant during the mechanism movements. Different with the existing ones, both of the actuated joints of the obtained RCM mechanism are revolute joints."

According to the news reporters, the research concluded: "Combining the proposed mechanism with a revolute joint whose axis passes through the RCM point to drive the whole mechanism out of the plane, the spatial RCM mechanisms to manipulate surgical tool in three dimension (3D) space can be obtained; and the 3D RCM mechanism can be used for manipulating multi-DOF instruments in a robot-assisted MIS or can be used as an external positioner in robotic single-port surgeries."

For more information on this research see: A Class of 2-Degree-of-Freedom Planar Remote Center-of-Motion Mechanisms Based on Virtual Parallelograms. Journal of Mechanisms and Robotics-Transactions of the Asme, 2014;6(3):118-124. Journal of Mechanisms and Robotics-Transactions of the Asme can be contacted at: Asme, Two Park Ave, New York, NY 10016-5990, USA.

Our news correspondents report that additional information may be obtained by contacting J.M. Li, University of London, Kings Coll London, Dept. of Informat, London WC2R 2LS, United Kingdom. Additional authors for this research include G.K. Zhang, Y. Xing, H.B. Liu and S.X. Wang.

Keywords for this news article include: London, Europe, Robotics, United Kingdom, Machine Learning, Emerging Technologies

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Robotics & Machine Learning


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