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首页> 外文期刊>The international journal of medical robotics + computer assisted surgery: MRCAS >Development of a novel robotic platform with controllable stiffness manipulation arms for laparoendoscopic single‐site surgery (LESS)
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Development of a novel robotic platform with controllable stiffness manipulation arms for laparoendoscopic single‐site surgery (LESS)

机译:一种新型机器人平台,可控制刚度操纵臂,用于锁伤单现场手术(较少)

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Abstract Background For current LESS robotic systems, the trade‐off between dexterity and payload capability is always present. This paper presents a novel LESS robotic platform equipped with controllable stiffness manipulation arms. Methods Each manipulation arm with an articulated section and a controllable stiffness continuum section (CSCS) can be switched between a 7‐DoF compliant status and 5‐DoF rigid status according to the operation requirement. Screw theory and product exponential formula are used to quantify the kinematic performance. Results The stiffness of the manipulation arm promotes 3.03 to 4.12 times from compliant to rigid CSCS with maximum payload of 10?N in rigid status. The shortest rigid/compliant switching time is 5?s. The precision of a tracking test and an ex vivo procedure verified the accuracy and effectiveness of the controllable stiffness manipulation arms. Conclusions This robot could potentially improve the surgical performance and further expand robotic LESS procedures.
机译:摘要背景对于当前较少的机器人系统,始终存在灵活性和有效载荷能力之间的权衡。本文提出了一种具有可控刚度操纵臂的小型机器人平台。方法可以根据操作要求在7-DOF兼容状态和5-DOF刚性状态之间切换具有铰接部分和可控刚度连续体部分(CSC)的每个操纵臂。螺杆理论和产品指数配方用于量化运动性能。结果操纵臂的刚度促进3.03至4.12次从符合刚性CSC的刚性CSC,在刚性状态下最大有效载荷为10?n。最短的刚性/柔顺的切换时间为5?s。跟踪测试的精度和前体内过程验证了可控刚度操纵臂的精度和有效性。结论该机器人可能会改善手术性能,进一步扩大机器人较少的程序。

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