Smooth control of an articulated instrument across areas with different work space conditions
    7.
    发明授权
    Smooth control of an articulated instrument across areas with different work space conditions 有权
    在具有不同工作空间条件的区域之间平滑地控制铰接式仪器

    公开(公告)号:US08903546B2

    公开(公告)日:2014-12-02

    申请号:US12541913

    申请日:2009-08-15

    IPC分类号: G06F19/00 A61B19/00

    摘要: An articulated instrument is controllably movable between areas of different work space limits, such as when it is extendable out of and retractable into a guide tube. To avoid abrupt transitions in joint actuations as the joint moves between areas of different work space limits, a controller limits error feedback used to control its movement. To provide smooth joint control as the instrument moves between areas of different work space limits, the controller imposes barrier and ratcheting constraints on each directly actuatable joint of the instrument when the joint is commanded to cross between areas of different work space limits.

    摘要翻译: 铰接式仪器可控制地在不同工作空间极限的区域之间移动,例如当其可伸缩并伸缩到导管中时。 为了避免联合动作中的突然过渡,因为联合在不同工作空间极限的区域之间移动,控制器限制用于控制其运动的误差反馈。 为了在仪器在不同工作空间极限的区域之间移动时提供平稳的关节控制,当指令在不同工作空间极限的区域之间交叉时,控制器对仪器的每个可直接致动接头施加屏障和棘轮约束。