CONTROL SYSTEM FOR REDUCING INTERNALLY GENERATED FRICTIONAL AND INERTIAL RESISTANCE TO MANUAL POSITIONING OF A SURGICAL MANIPULATOR
    83.
    发明申请
    CONTROL SYSTEM FOR REDUCING INTERNALLY GENERATED FRICTIONAL AND INERTIAL RESISTANCE TO MANUAL POSITIONING OF A SURGICAL MANIPULATOR 审中-公开
    控制系统,用于减少内部生成的手动定位和手动定位

    公开(公告)号:US20150073435A1

    公开(公告)日:2015-03-12

    申请号:US14490090

    申请日:2014-09-18

    Abstract: A robotic control system is placed in clutch mode so that a slave manipulator holding a surgical instrument is temporarily disengaged from control by a master manipulator in order to allow manual positioning of the surgical instrument at a surgical site within a patient. Control systems implemented in a processor compensate for internally generated frictional and inertial resistance experienced during the positioning, thereby making movement more comfortable to the mover, and stabler from a control standpoint. Each control system drives a joint motor in the slave manipulator with a saturated torque command signal which has been generated to compensate for non-linear viscous forces, coulomb friction, cogging effects, and inertia forces subjected to the joint, using estimated joint angular velocities, accelerations and externally applied torques generated by an observer in the control system from sampled displacement measurements received from a sensor associated with the joint.

    Abstract translation: 机器人控制系统被置于离合器模式中,使得保持手术器械的从操作器暂时脱离主操纵器的控制,以允许手术器械在患者体内的手术部位手动定位。 在处理器中实现的控制系统补偿在定位期间经历的内部产生的摩擦和惯性阻力,从而使得移动者更容易移动,并且从控制的角度来看稳定。 每个控制系统使用饱和转矩指令信号来驱动从动操纵器中的联合马达,该饱和转矩指令信号使用估计的关节角速度产生以补偿非线性粘滞力,库伦摩擦,齿槽效应和经受关节的惯性力, 通过从与关节相关联的传感器接收到的采样位移测量,由控制系统中的观察者产生的加速度和外部施加的扭矩。

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