HyBAR: hybrid bone-attached robot for joint arthroplasty.
HyBAR: hybrid bone-attached robot for joint arthroplasty.
复制标题
HyBAR:用于关节置换术的混合骨附着机器人。
DOI:
10.1002/rcs.254
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发表时间:
2009
期刊:
影响因子:
--
通讯作者:
Jaramaz,B
中科院分区:
文献类型:
--
作者:
Song,S;Mor,A;Jaramaz,B
BackgroundA number of small bone‐attached surgical robots have been introduced to overcome some disadvantages of large stand‐alone surgical robots. In orthopaedics, increasing demand on minimally invasive joint replacement surgery has also been encouraging small surgical robot developments. Among various technical aspects of such an approach, optimal miniaturization that maintains structural strength for high speed bone removal was investigated.MethodsBy observing advantages and disadvantages from serial and parallel robot structures, a new hybrid kinematic configuration was designed for a bone‐attached robot to perform precision bone removal for cutting the femoral implant cavity during patellofemoral joint arthroplasty surgery. A series of experimental tests were conducted in order to evaluate the performance of the new robot, especially with respect to accuracy of bone preparation.ResultsA miniaturized and rigidly‐structured robot prototype was developed for minimally invasive bone‐attached robotic surgery. A new minimally invasive modular clamping system was also introduced to enhance the robotic procedure. Foam and pig bone experimental results demonstrated a successful implementation of the new robot that eliminated a number of major design problems of a previous prototype.ConclusionsFor small bone‐attached surgical robots that utilize high speed orthopaedic tools, structural rigidity and clamping mechanism are major design issues. The new kinematic configuration using hinged prismatic joints enabled an effective miniaturization with good structural rigidity. Although minor problems still exist at the prototype stage, the new development would be a significant step towards the practical use of such a robot. Copyright © 2009 John Wiley & Sons, Ltd.