CN106236277A - 输入装置上的力反馈的应用促使其操作者命令关节式仪器摆成优选姿势 - Google Patents
输入装置上的力反馈的应用促使其操作者命令关节式仪器摆成优选姿势 Download PDFInfo
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Abstract
一种医疗机器人系统包含进入导管,其具有从其远端延伸出来的关节式仪器。控制器经配置响应于相关联输入装置的操作者操纵以命令操纵关节式仪器,同时向所述输入装置产生力命令,其推动所述操作者命令所述仪器摆成优选姿势。当第一与第二优选姿势之间将发生转变时,一者分阶段引入,而另一者分阶段停止。可强加虚拟屏障,以防止所述关节式仪器被命令摆成不期望的姿势。
Description
本申请是申请日为2012年11月9日、发明名称为“输入装置上的力反馈的应用促使其操作者命令关节式仪器摆成优选姿势”的中国专利申请201280055123.4(PCT/US2012/064400)的分案申请。
相关申请案的交叉引用
本申请案是2010年2月12日申请的标题为“提供指示关节式仪器的所命令的状态与优选姿势之间的差的感觉反馈的医疗机器人系统(Medical Robotic System ProvidingSensory Feedback Indicating a Difference Between a Commanded State and aPreferred Pose ofan Articulated Instrument)”的第12/704,669号美国申请案的部分继续申请案,其由引用并入此处。
本申请案也是2009年11月5日申请的标题为“关节式仪器在进入导管移入和移出的运动期间的控制器辅助的重新配置(Controller Assisted Reconfiguration of anArticulated Instrument During Movement Into and Out of an Entry Guide)”的第12/613,328号美国申请案的部分继续申请案,所述美国申请案是2009年8月15日申请的标题为“跨过具有不同工作空间条件的区域平滑控制关节式仪器(Smooth Control of anArticulated Instrument Across Areas with Different Work Space Conditions)”的第12/541,913号美国申请案的部分继续申请案,所述美国申请案中的每一个由引用并入此处。
技术领域
本发明一般涉及医疗机器人系统,且尤其,涉及一种应用输入装置上的力反馈来促使其操作者命令关节式仪器摆成优选姿势的方法和系统。
背景技术
例如执行微创外科手术时所使用的遥操作系统等医疗机器人系统提供优于传统开腹手术技术的许多益处,包含疼痛较少、住院时间较短、较快地返回到正常活动、最小的伤疤、恢复时间减少以及对组织的伤害较小。因此,对于这样的医疗机器人系统的需求是强烈的并且逐渐增长。
这样的医疗机器人系统的一个实例是来自加利福尼亚州森尼韦尔市的直观外科公司(Intuitive Surgical,Inc.,)的手术系统,其为微创机器人手术系统。DA手术系统具有若干机械臂,其响应于观看由手术部位的图像捕获装置捕获的图像的外科医生对输入装置的移动而移动所附接的医疗装置,例如图像捕获装置和直观外科的专有ENDOWRIST用关节连接的外科仪器。将医疗装置中的每一个穿过其自己的微创切口插入到患者体内,并定位以在手术部位执行医疗程序。切口可放置在患者身体附近,使得手术仪器可用来协作地执行医疗程序,且图像捕获装置可观看此医疗程序,其机械臂在所述程序期间无碰撞。
为了执行某些医疗程序,使用单个进入孔口例如微创切口或自然的身体孔来进入患者体内以执行医疗程序可为有利的。举例来说,可首先将进入导管插入、定位且保持在进入孔口的适当位置。关节式仪器例如,关节式相机仪器以及多个关节式手术工具仪器可用来执行医疗程序,然后其可以被插入到进入导管的近端中,以便从其远端延伸出来。因此,进入导管容纳多个仪器的单个进入孔口,同时在进入导管引导仪器进入工作部位时,使所述仪器保持捆束在一起。
然而,由于关节式相机和工具仪器极为贴近,若干挑战存在于使用这样的捆束单元的医疗机器人系统中。举例来说,因为相机仪器具有接近的关节(例如,接合点),其从远端的相机视图不可见,因此外科医生在移动相机时会跟踪不到这些关节的当前状态,且因此跟踪不到其可用运动范围。并且,当相机和工具仪器的关节在相机视野之外且因此外科医生通过其所捕获的图像不可见时,外科医生在以遥控机器人技术移动关节型仪器以执行医疗程序时,会不经意地驱动工具和/或相机仪器的链接而彼此相撞。在任一情况下,可危害患者的安全,且会不利地影响医疗程序的成功和/或按时完成。
发明内容
因此,本发明的一个或更多个方面的一个目标是医疗机器人系统,以及在其中实施的方法,其促使操作者命令关节式仪器的正常模式操作的优选姿势,其充当在所述仪器的正常操作期间相对于关节式仪器的操作者所命令移动的偏置点。
本发明的一个或更多个方面的另一目标是医疗机器人系统,以及其中所实施的方法,其应用输入装置上的力反馈促使其操作者命令关节式仪器的姿势通过平滑过渡到优选姿势来摆成优选姿势。
本发明的一个或更多个方面的另一目标是医疗机器人系统,以及其中所实施的方法,其应用输入装置上的力反馈促使其操作者命令关节式仪器的姿势摆成第一优选姿势,然后根据激活信号平滑地过渡到第二优选姿势。
通过本方面的各个方面可实现这些和额外的目标,其中简而言之,一个方面是用于促使操作者操纵输入装置来命令关节式仪器摆成优选姿势的方法,所述方法包括:响应于操作者对输入装置的操纵产生关节式仪器的所命令姿势;针对输入装置的多个自由度产生第一力命令,以便指示第一优选姿势与所命令姿势之间的差;以及通过根据第一激活信号分阶段引入其应用来将第一力命令应用于输入装置的所述多个自由度。
另一方面是医疗机器人系统,其包括:输入装置;关节式仪器;以及处理器,其经配置以响应于操作者对输入装置的操纵而产生关节式仪器的所命令姿势,针对输入装置的多个自由度产生第一力命令,以便指示第一优选姿势与经修改所命令姿势之间的差,且所述第一力命令的应用命令于输入装置的所述多个自由度,以便根据第一激活信号分阶段引入其应用。
从对本发明优选实施例的以下描述中,将明白本发明的各种方面的额外目标、特征和优点,所述描述应结合附图进行。
附图说明
图1示出利用本发明的方面的医疗机器人系统的方框图。
图2示出利用本发明的方面的医疗机器人系统中具有从中延伸出来的多个关节式仪器的进入导管的远端的立体图。
图3到4分别示出利用本发明的方面的医疗机器人系统中从进入导管的远端延伸出来的关节式仪器的俯视图和右侧视图。
图5示出如在利用本发明的方面的医疗机器人系统中使用的关节式仪器操纵器和关节式仪器的交互组件的方框图。
图6示出针对利用本发明的方面的医疗机器人系统中的关节式仪器的操作者所命令移动的仪器控制器的方框图。
图7示出从用于正常操作的优选姿势中的进入导管的远端延伸出来的关节式仪器的侧视图,正如其被使用在利用本发明的方面的医疗机器人系统中。
图8示出处于缩回到进入导管中的优选姿势的进入导管的远端延伸出来的关节式仪器的侧视图,正如其被使用在利用本发明的方面的医疗机器人系统中。
图9示出图6的仪器控制器的模拟仪器块的方框图正如其被使用在利用本发明的方面的医疗机器人系统中。
图10示出如在利用本发明的方面的医疗机器人系统中使用的图6的仪器控制器的姿势数据和姿势推动块的方框图。
图11示出如在利用本发明的方面的医疗机器人系统中使用的依据时间函数的正常模式操作和缩回模式的激活信号。
图12示出如在利用本发明的方面的医疗机器人系统中使用的图10的缩回模式推动块的方框图。
图13示出如在利用本发明的方面的医疗机器人系统中使用的图10的正常模式推动块的方框图。
图14示出如在利用本发明的方面的医疗机器人系统中使用的图12和13的力转换器块的方框图。
图15示出利用本发明的方面的用于通过施加虚拟屏障作为可用于促使操作者操纵输入装置以命令关节式仪器摆成优选姿势的方法中的约束来修改关节式仪器的所命令姿势的方法的流程图。
图16示出利用本发明的方面的用于产生可用于促使操作者操纵输入装置以命令关节式仪器摆成优选姿势的方法中的缩回模式激活信号的方法的流程图。
图17示出利用本发明的方面的用于产生可用于促使操作者操纵输入装置以命令关节式仪器摆成优选姿势的方法中的正常模式无效信号的方法的流程图。
图18示出利用本发明的方面的用于促使操作者操纵输入装置以命令关节式仪器摆成优选姿势的方法的第一实施例的流程图。
图19示出利用本发明的方面的用于促使操作者操纵输入装置以命令关节式仪器摆成优选姿势的方法的第二实施例的流程图。
图20示出利用本发明的方面的用于促使操作者操纵输入装置以命令关节式仪器摆成优选姿势的方法的第三实施例的流程图。
图21示出利用本发明的方面的用于促使操作者操纵输入装置以命令关节式仪器摆成优选姿势的方法的第四实施例的流程图。
图22示出用于利用本发明的方面的医疗机器人系统中的关节式仪器的操作者所命令移动的替代仪器控制器的方框图。
图23示出如在利用本发明的方面的医疗机器人系统中使用的提供作为对输入控制装置将施加的力将分阶段引入的第一推动力命令的“分阶段引入”推动块的方框图。
图24示出如在利用本发明的方面的医疗机器人系统中使用的作为正对输入控制装置施加的力将分阶段停止的第二推动力命令的“分阶段停止”推动块的方框图。
具体实施方式
图1示出医疗机器人系统100的方框图。进入导管(EG)200经配置以插入穿过进入孔口,例如微创切口或患者体内的自然身体孔。例如第一关节式手术工具(工具1)231、第二关节式手术工具(工具2)241和关节式立体相机(CAM)211可插入穿过进入导管200,并从进入导管200的远端延伸出来。如图2中所示,相机211具有一对立体图像捕获装置311、312,以及覆盖在其尖端中的光纤缆线313(在其近端耦合到光源)。手术工具231、241具有末端执行器331、341。尽管仅展示两个工具231、241,但进入导管200可引导额外工具,如在患者体内的工作部位执行医疗程序所需要。下文参考图3和4提供关于关节式仪器211、231、241的额外细节。
装置231、241、211、200中的每一个由其自己的操纵器和控制器操纵和控制。具体地,关节式相机仪器211由受相机仪器控制器(CTRLC)213控制的相机操纵器(ECM)212操纵,第一关节式手术工具231由受工具仪器控制器(CTRL1)233控制的第一工具操纵器(PSM1)232操纵,第二关节式手术工具241由受工具仪器控制器(CTRL2)243控制的第二工具操纵器(PSM2)242操纵,且进入导管200由受进入导管控制器(CTRLG)203控制的进入导管操纵器(EGM)202操纵。如下文参考图6所述,控制器203、233、243、213作为主/从控制系统在处理器102中实施。
关节式仪器操纵器232、242、212中的每一个是运载致动器且提供机械无菌接口以将传输运动到其相应的关节式仪器的机械组合件。每一个关节式仪器231、241、211是从其操纵器接收运动且借助于缆线传输将其传播到远端关节(例如,接合点)的机械组合件。这些接合点可为棱柱型(例如,线性运动)或旋转型(例如,其围绕机械轴枢转)。此外,所述仪器可具有内部机械约束(例如,缆线、传动装置、凸轮和皮带等),其迫使多个接合点以预定方式一起移动。每一组受机械约束的接合点实施特定的运动轴,且可将约束设计成对旋转接合点(例如,榫接接合点)。注意,以此方式,仪器还可具有比可用致动器更多的接合点。
进入导管操纵器(EGM)202可用来以机械方式将进入导管200插入进入孔口中和从进入孔口缩回。EGM202还可用来以机械方式使进入导管200相对于枢转点(也称为远程中心“RC”)附近的进入导管200的纵轴进行俯仰、横滚和偏航枢转。可使用设置臂来固持和定位进入导管200,使得其远程中心RC位于进入孔口处。
提供两个输入装置108、109供外科医生操纵。输入装置108、109中的每一个可选择性地与装置211、231、241、200中的一个相关联,使得相关联的装置可由输入装置通过其控制器和操纵器来控制。外科医生(或助理)可以常规方式执行此选择,例如与图形用户接口(GUI)上的菜单交互,提供由语音辨识系统辨识的语音命令,使用例如触摸板等输入装置将这些关联输入到系统100中,或与输入装置108、109上提供的专用按钮交互。通过使用这些关联机制中的任一个,产生选择输入且将其提供给多路复用器(MUX)280,其在处理器102中实施。选择输入的值(例如,1与0的组合)指示选择哪一关联(即,交叉切换)。
举例来说,向多路复用器280的选择输入的第一值使左输入装置108和右输入装置109处于“工具跟随模式”,其中它们分别与第一手术工具241和第二手术工具231相关联,因此外科医生可在进入导管200被锁定于适当位置时对患者执行医疗程序。在此配置中,多路复用器280交叉切换以将输入装置108的输出251和输入252分别连接到工具控制器243的输入260和输出261;且将输入装置109的输出253和输入254分别连接到工具控制器233的输入268和输出269。
当外科医生将重新定位相机211时,左输入装置108和右输入装置109中的一个或两个可使用选择输入的第二值与相机211相关联,使得外科医生可移动相机211穿过其控制器213和操纵器212。类似地,当外科医生将重新定位相机200时,左输入装置108和右输入装置109中的一个或两个可使用选择输入的第三值与进入导管200相关联,使得外科医生可移动进入导管200穿过其控制器203和操纵器202。在任何情况下,解除关联的装置被其相应控制器软锁在适当位置。
相机仪器211所捕获的图像由图像处理器214处理,且在显示屏104上显示,以便向外科医生提供远程呈现体验,如例如第6,671,581号美国专利“微创手术设备中的相机参考控制(Camera Referenced Control in a Minimally Invasive Surgical Apparatus)”,其由引用并入此处。因此,使用医疗机器人系统100的外科医生可通过操纵输入装置108、109以致使相关联手术工具231、241的对应移动,同时外科医生在显示屏104上观看工作部位的图像,来对患者执行医疗程序。
尽管描述为处理器,但将认识到,处理器102可实际上由硬件、软件和固件的任何组合实施。并且,如本文所描述,所述处理器的功能可由一个单元执行,或在不同组件之中划分,所述组件中的每一个反过来可由分布在整个系统中的硬件、软件和固件的任何组合实施。
对于例如本文所述的医疗机器人系统的通用方面的构造和操作的额外细节,见例如第6,493,608号美国专利“微创手术设备的控制系统的方面(Aspects of a ControlSystem of a Minimally Invasive Surgical Apparatus)”和第U.S.2008/007129号美国专利申请公开案“微创手术系统(Minimally Invasive Surgical System)”,其由引用并入此处。
图3到4作为实例分别示出了()具有向外延伸的关节式相机仪器211和关节式手术工具仪器231、241的进入导管200的远端的俯视图和右侧视图。关节式相机211延伸穿过通道321,且关节式手术工具仪器231、241分别延伸穿过进入导管200的通道431、441。相机211包含尖端311;第一、第二和第三链接322、324、326;第一和第二接合点组合件(本文也简称为“接合点”)323、325;以及手腕组合件327。第一接合点组合件323耦合第一和第二链接322、324,且第二接合点组合件325耦合第二和第三链接324、326,使得第二链接324可围绕第一接合点组合件323进行俯仰和偏航枢转,同时第一和第三链接322、326保持彼此平行。
第一和第二接合点323、325称为“榫接接合点”,因为其一起协作操作,使得当第二链接324围绕第一接合点323进行俯仰和/或偏航枢转时,第三链接326以互补方式围绕第二接合点325枢转,使得第一和第三链接322、326总是保持彼此平行。第一链接322也可在其纵轴周围进行横滚旋转,以及穿过通道321移入和移出(例如,朝工作部位插入以及从工作部位缩回)。手腕组合件327也具有俯仰和偏航角移动能力,使得相机的尖端311可向上或向下且向右或向左、以及其组合、定向。
工具231、241的接合点和链接在构造和操作上类似于相机211的接合点和链接。尤其,工具231包含末端执行器331(具有齿板338、339);第一、第二和第三链接332、334、336;第一和第二接合点组合件333、335;以及手腕组合件337,其由例如参考图5所述的致动器(加用于致动末端执行器331的额外致动器)驱动。同样地,工具241包含末端执行器341(具有齿板348、349);第一、第二和第三链接342、344、346;第一和第二接合点组合件343、345;以及手腕组合件347,其也由例如参考图5所述的致动器(加用于致动末端执行器341的额外致动器)驱动。
图5作为实例示出了()关节式仪器(例如,关节式相机211以及关节式手术工具231、241)及其对应的仪器操纵器(例如,相机操纵器212和工具操纵器232、242)的交互部分的图。所述仪器中的每一个包含若干可致动组合件521-523、531-533、570,用于实现所述仪器(包含其末端执行器)的移动,且其对应操纵器包含用于致动所述可致动组合件的若干致动器501-503、511-513、560。
另外,还可提供若干接口机构。举例来说,在无菌操纵器/仪器接口中提供俯仰/偏航耦合机构540、550(分别用于榫接接合点俯仰/偏航以及手腕俯仰偏航)以及齿轮比545、555(分别用于仪器横滚和末端执行器致动),以实现仪器接合点在仪器接合点空间中的所需运动范围,同时两者满足操纵器致动器空间中的紧凑型约束,并保全跨接口的准确运动传输。尽管显示为单个块540,但榫接接合点致动器501、502(区分为#1和#2)与榫接接合点俯仰/偏航组合件521、522之间的耦合可包含一对耦合机构,无菌接口的每一侧上一个(即,一个在接口的操纵器侧上,且一个在接口的仪器侧上)。同样地,尽管显示为单个块550,但手腕致动器512、513(区分为#1和#2)与手腕俯仰/偏航接合点组合件532、533之间的耦合也可包括一对耦合机构,无菌接口的每一侧上一个。
榫接接合点俯仰组合件521和榫接接合点偏航组合件522两者共享第一、第二和第三链接(例如,关节式相机211的链路322、324、326)以及第一和第二接合点(例如,关节式相机211的接合点322、325)。除这些共享组件之外,榫接接合点俯仰和偏航组合件521、522还包含机械耦合,其将第一和第二接合点(通过榫接耦合540)耦合到榫接接合点俯仰和偏航致动器501、502,使得第二链接可围绕穿过第一接合点的线且沿与第一链接(例如,关节式相机211的链接322)的纵轴横向的轴可控地枢转,且第二链接可围绕穿过第一接合点的线且沿与第一链接的横轴和纵轴正交的轴可控地枢转。
入/出(I/O)组合件523包含第一链接(例如,关节式相机211的链接322),以及穿过将入/出(I/O)致动器503耦合到第一链接的传动系的接口,使得第一链接因I/O致动器503的致动而可控地沿其纵轴线性移动。横滚组合件531包含第一链接,以及穿过将横滚致动器511的旋转元件(例如,电动机的转子)耦合到第一链接的一个或更多个齿轮(即,具有齿轮比545)的接口,使得第一链接因横滚致动器511的致动而围绕其纵轴可控地旋转。
仪器操纵器(例如,相机操纵器212)包含手腕致动器512、513,其通过手腕组合件(例如,关节式相机211的手腕组合件327)的手腕耦合550俯仰和偏航接合点532、533致动,以便致使仪器尖端(例如,相机尖端311)在相对于手腕组合件的上下(即,俯仰)和左右(即,偏航)方向上可控地枢转。抓握组合件570包含末端执行器(例如,手术工具231的末端执行器331),以及穿过将抓握致动器560耦合到末端执行器的一个或更多个齿轮(即,具有齿轮比555)的接口,以便可控地致动末端执行器。
仪器接合点群组500称为“平移接合点”,因为通过这些接合点的组合的致动,可根据需要使用弧补偿将仪器的手腕组合件平移定位在三维空间内。仪器接合点群组510称为“定向接合点”,因为通过这些接合点的致动,仪器的尖端可围绕手腕组合件定向。
在医疗程序的执行之前、期间和之后的各个阶段,可存在关节式仪器211、231、241的优选姿势,以最佳实现那时所执行的任务。举例来说,在正常操作期间,如图3和4中所示,手术工具231、241中的每一个的优选姿势可为“肘出、手腕入”姿势,以提供良好的运动范围,同时最小化与其它仪器不经意碰撞的机会。同样地,在正常操作期间,如图3和4中所示,相机仪器211的优选姿势可为“眼镜蛇”姿势,其中在相机的图像捕获端提供手术工具仪器231、241的末端执行器331、341的良好视图。作为另一实例,当希望将仪器缩回到进入导管200中以执行工具更换(即,将仪器或其末端执行器更换成另一仪器或末端执行器)或希望通过使进入导管200围绕其远程中心枢转来重新定向进入导管200时,在仪器缩回到进入导管200中之前,仪器的优选姿势是“挺直”姿势,其中仪器的链接在直线上对准,例如图8中所示。
图6作为示例,示出了相机仪器控制器(CTRLC)213的方框图,当输入装置108通过如先前参考图1所描述的多路复用器280选择性地与相机仪器211相关联时,由外科医生对输入装置108的移动所命令,所述相机仪器控制器控制关节式相机仪器211的摆姿势(即,两者均平移和定向)。输入装置108包含通过接合点连接的若干链接,以便促进多自由度移动。举例来说,当外科医生/操作者将输入装置108从一个位置移动到另一位置时,与输入装置108的接合点相关联的传感器以取样间隔(适合处理器102的处理速度以及相机控制目的)感测此移动,且将指示接合点空间中的此经取样移动的数字信息631提供给输入处理块610。
输入处理块610处理从输入装置108的接合点传感器接收到的信息631,以通过从接合点位置信息计算接合点速度,且使用众所周知的变换技术,使用雅可比矩阵和眼睛相关信息执行变换,来将所述信息变换成相机仪器211在笛卡尔空间中相对于与外科医生的眼睛的位置相关联的参考帧(“眼睛参考帧”)的对应所期望的位置和速度。
标度和偏移处理块601从输入处理块610接收经处理的信息611,且将标度和偏移调整应用于信息,使得因此正在显示屏104上观看的相机仪器211的所得移动的图像看起来自然,且如输入装置108的操作者所预期。为了允许相机仪器211如其在工作部位所观看的较精确的移动,在相机仪器211的较小移动相对于输入装置108的较大移动的情况下,标度调整是有用的。另外,应用偏移调整,以用于在外科医生操纵输入装置108以命令相机仪器211且因此那时正在显示屏104上显示的其所捕获图像的移动时,使输入装置108相对于他或她的眼睛对准。
模拟仪器块604通过使用逆向运动学、限制所命令的接合点位置和速度以避免物理限制或其它约束,例如避免与患者的组织或其它部分的有害接触,以及应用可经界定以改进在那时正由外科医生使用医疗机器人系统100执行的医疗程序的性能的虚拟约束,将相机仪器211的所命令姿势621从其笛卡尔空间变换到其接合点空间。尤其,如图9中所示出,可通过对所命令姿势621实施虚拟约束的虚拟屏障逻辑901(具体参考如下图15所述)来修改所命令的姿势621,以产生经修改的所命令姿势623。然后逆向运动学和限制块902将经修改的所命令姿势623从仪器笛卡尔空间转变为仪器接合点空间,且将接合点位置和/或速度限制于与关节式相机仪器211的接合点相关联或放于其上的物理限制或其它约束。
将模拟仪器块604的输出622(其包含相机仪器211的每一接合点的所命令值)提供给接合点控制块605和正向运动学块606。接合点控制块605包含相机仪器211的每一受控接合点(或操作地耦合的接合点,例如“榫接接合点”)的接合点控制系统。出于反馈控制目的,与相机仪器211的受控接合点中的每一个相关联的传感器将指示相机仪器211的每一接合点的当前位置和/或速度的传感器数据632提供回到接合点控制块605。传感器可直接地(例如,从相机仪器211上的接合点)或间接地(例如,从驱动所述接合点的相机操纵器212中的致动器)感测此接合点信息。然后接合点控制块605中的每一接合点控制系统产生用于其在相机操纵器212中的相应致动器的扭矩命令633,以便以常规反馈控制系统方式将所命令的与所感测的接合点值之间的差驱动到零。
正向运动学块606使用相机仪器211的正向运动学,相对于眼睛参考帧将模拟仪器块604的输出622从相机仪器的接合点空间变换回到笛卡儿空间。将正向运动学块606的输出641提供给标度和偏移处理块601,以及提供回到模拟仪器块604,以用于其内部计算目的。
标度和偏移处理块601在将其输出612传递到输入处理块610(在此处计算其输出611与输入612之间的误差值)之前,对正向运动学块606的输出641执行逆标度和偏移功能。如果未对模拟仪器块604的输入621强加限制或其它约束,那么所计算的误差值将为零。另一方面,如果已强加限制或约束,那么误差值不为零,且将其转换为扭矩命令634,其驱动输入装置108中的致动器提供由外科医生的手感觉的力反馈。因此,外科医生知道正通过他或她感觉在所述方向上抵抗他或她对输入装置108的移动的力强加限制或约束。
姿势推动块625包含在控制器213中,以产生提供给输入处理块610的推动力命令627。然后输入处理块610将推动力命令627转换成电动机扭矩,使得所命令的推动力以促使外科医生命令相机仪器211的姿势摆成姿势数据626中所提供的优选姿势的方式由外科医生在输入装置108上感觉到。
对于相机仪器211,可存在至少两种优选姿势。在正常模式操作期间,例如当外科医生正对患者执行医疗程序时,相机仪器211的优选姿势为图3和4中所示的“眼镜蛇”姿势。在图3中的“眼镜蛇”姿势向下看,相机仪器211的所有链接322、324、326均与第一链接322的纵轴401对准,使得其具有最大的可用横向运动范围,且为相机仪器211的主插入方向提供参考。另外,榫接接合点323、325“榫接上”,如图4中所示,使得第三链接326在纵轴401上方移位一距离,且手腕组合件327以负俯仰角度旋转,使得相机尖端311以某一角度向下定向,使得相机优选正观看工具仪器231和241的末端执行器331和341的工作空间的中心,工具仪器231和241那时也从进入导管200的远端延伸出来。在此情况下,外科医生优选被允许沿纵轴401在输入/输出(I/O)方向上向前和向后自由地移动相机211,使得相机211可在末端执行器331、341在其使用期间远离和返回朝向进入导管200的远端移动时,更好地观看末端执行器331、341。
在缩回模式期间,相机仪器211的优选姿势为“挺直”姿势。图7和8分别示出相机仪器211在“眼镜蛇”和“挺直”姿势时的简化侧视图。为了从“眼镜蛇”姿势到“挺直”姿势,榫接接合点323、325旋转链接324,直到其与第一链接322的纵轴401对准为止。由于链接326归因于榫接接合点323、325的操作而总是与第一链接322平行,因此当链接324于纵轴401对准时,链接326也与纵轴401对准。同时,手腕接合点327也旋转相机尖端311,直到其中心轴也与纵轴401对准为止。
图10作为示例,示出了姿势推动块625及其到姿势数据块626的耦合的方框图。在此实例中,姿势数据块626包括存储在处理器102可存取的非易失性存储器中的数据。相机仪器211的所存储数据包含用于相机仪器211的缩回的“挺直”姿势1001的数据,以及在相机仪器211的正常模式操作期间使用的“眼镜蛇”姿势1002的数据。
姿势推动块625包括缩回模式推动块1003、正常模式推动块1004以及求和节点1005。缩回模式推动块1003和正常模式推动块1004的关键特征是在转变周期期间,来自一个的推动力命令分阶段引入,而来自另一个的推动力命令正分阶段停止。如下参考图12所述的缩回模式推动块1003的更详细描述,且参考图13所述的正常模式推动块1004的更详细描述。
图12作为示例,示出了连续处理传入数据的缩回模式推动块1003的方框图。求和节点1201计算优选“挺直”姿势1001(即,相机仪器211的缩回配置)与由仪器控制器213的模拟仪器块608的虚拟屏障逻辑901产生的经修改的所命令姿势(XSLV、VSLV)623之间的差(XERR、VERR)。如本文中所使用,术语“姿势”表示仪器的位置和定向以及其位置和旋转速度,使得所命令的姿势可包含位置(XCMD)和速度(VCMD)分量,经修改的所命令姿势可包含位置(XSLV)和速度(VSLV)分量,优选姿势可包含位置(XPP)和速度(VPP)分量,且优选姿势与经修改的所命令姿势之间的所计算差可包含位置(XERR)和速度(VERR)分量。然而,在求和节点1201中所执行的计算中,优选姿势(VPP)的速度(VPP)分量全部假定为零。
为了阐释如何产生经修改的所命令姿势(XSLV、VSLV),参考图15所述的虚拟屏障逻辑901的实例。在框1501中,逻辑901从标度和偏移块621接收所命令姿势(XCMD)621,且在框1502中,其确定所命令的姿势621在第一方向上的投射,所述方向在本发明的实例中为沿相机仪器211的第一链接322的纵轴401的仪器缩回方向。在框1503中,作出沿第一方向的投射是否将命令相机仪器211移出虚拟屏障位置的确定。在此情况下,虚拟屏障位置是沿纵轴401的位置,其为距进入导管200的远端的阈值距离或安全裕量。如US2011/0040305A1中所描述,安全裕量的目的是为了防止当试图将关节式仪器211推回到进入导管200中,同时其处于其在那时物理上将不配合的配置中,时,进入导管200和关节式仪器211两者发生损坏。如果框1503中的确定为否,那么虚拟屏障逻辑901跳回到框1501,以为下一处理循环处理数据。另一方面,如果框1503中的确定为是,那么在框1504中,确定相机仪器211的当前姿势,感测其接合点位置,且应用正向运动学来确定其对应的笛卡儿姿势。在框1505中,然后作出相机仪器211的当前姿势是否为优选姿势(即,在此情况下为“挺直”姿势)的确定。如果框1505中的确定为是,那么虚拟屏障逻辑901不修改所命令的姿势(XCMD),且跳回到框1501,以为下一处理循环处理数据。另一方面,如果框1505中的确定为否,那么通过应用虚拟屏障作为约束来修改所命令的姿势(XCMD),使得相机仪器211被阻止在第一方向上进一步移动。所述方法接着循环回到框1501,以为下一处理循环处理数据。因此,以此方式防止相机仪器211移出虚拟屏障位置,直到当前姿势为相机仪器211的优选缩回姿势为止。
返回参看图12,在框1202中,去除所计算差(XERR、VERR)的非推动分量。尤其,去除沿第一方向的平移分量以及围绕尖端310的横滚旋转分量,因为这些分量中没有一个影响优选姿势(即,不管其值如何,相机仪器均可被置于如图8中所示的“挺直”姿势,)。在框1203中,框1202中所产生的经修改差(XERR′、VERR′)经转换以产生力命令,其将导致一个或更多个力被施加到输入装置108,使得外科医生被促使命令相机仪器211摆成优选姿势。优选地,此力命令为将施加到输入装置108的对应自由度的粘弹性六自由度力。
通过比例微分(PD)开环系统的框图,图14示出了力转换器块1203的实例。在此PD系统中,经修改的位置差(XERR′)乘以位置增益(KP)1401,且由限制器1402限制于第一饱和值(SATP),以产生第一力命令贡献。同时,经修改的速度差(VERR′)乘以微分增益(KD)1403,以产生第二力命令贡献。求和节点1404计算第二力命令贡献与第一力命令贡献之间的差,且限制器1405将所述差限制于第二饱和值(SATF)。因此,第二力命令贡献与第一力命令贡献之间的受限差导致粘弹性六自由度笛卡尔力,用于推动外科医生移动输入装置108,以便命令优选姿势。选择第一和第二饱和值的值,以便确保输入装置108的电动机上的所命令电动机扭矩不超过其额定最大值。
返回参看图12,调制器1207用类似图11中的曲线1101的缩回激活信号来对力转换器块1203所产生的粘弹性六自由度笛卡尔力进行振幅调制。为了产生缩回激活信号,求和节点1204计算所命令姿势(XCMD)与经修改的所命令姿势(XSLV)之间的差,忽略速度贡献,调制系数发生器1205使用所计算的差产生调制系数流,且低通滤波器1206对所述调制系数流进行滤波。
图16中所示出的流程图中提供缩回模式激活信号的产生的实例。块1601和1602描述求和节点1204所采取的动作。尤其,在框1601中,接收所命令的姿势(XCMD)和经修改的所命令姿势(XSLV),且在框1602中,计算所命令的姿势(XCMD)与经修改的所命令姿势(XSLV)之间的差。框1603到1607接下来描述调制系数发生器1205所采取的动作。在框1603中,确定所计算的差在第一方向(即,沿纵轴401的缩回方向)的投射,且在框1604中,作出投射是否超过阈值的确定。在此情况下,阈值应足够大,以确保外科医生真的希望缩回相机仪器211,且这不是不经意的动作,例如因手抖而导致。如果框1604中的确定为是,那么在框1605中,将当前调制系数设定为整数值“1”。另一方面,如果框1604中的确定为否,那么在框1606中,将当前调制系数设定为整数值“0”。在框1607中,然后将当前调制系数附加到先前处理周期中所产生的调制系数流。框1608描述低通滤波器1206所采取的动作。尤其,在框1608中,通过使调制系数流穿过低通滤波器1206来产生缩回激活信号,然后该过程跳回到框1601,以为下一处理循环处理数据。
图13作为示例示出了也连续处理传入数据的正常模式推动块1004的方框图。求和节点1301计算优选“眼镜蛇”姿势1002(即,相机仪器211的正常模式配置)与由仪器控制器213的模拟仪器块608的虚拟屏障逻辑901产生的经修改的所命令姿势(XSLV、VSLV)623之间的差(XERR、VERR)。
在框1302中,去除所计算差(XERR、VERR)的非推动分量。尤其,去除沿第一方向的平移分量以及围绕尖端311的横滚旋转分量,因为这些分量中没有一个影响优选姿势(即,不管其值如何,相机仪器均可被置于如图7中所示的“眼镜蛇”姿势,)。在框1303中,框1302中所产生的经修改差(XERR′、VERR′)经转换以产生力命令,其将导致一个或更多个力被施加到输入装置108,使得外科医生被促使命令相机仪器211摆成优选姿势。优选地,此力命令为将施加到输入装置108的对应自由度的粘弹性六自由度力,其产生类似于先前参考图14所述的。
然后调制器1307用类似图11中的曲线1102的正常模式无效信号来对力转换器块1303所产生的粘弹性六自由度笛卡尔力进行振幅调制。为了产生正常模式无效信号,求和节点1304计算所命令姿势(XCMD)与经修改的所命令姿势(XSLV)之间的差,忽略速度贡献,调制系数发生器1305使用所计算的差产生调制系数流,且低通滤波器1306对所述调制系数流进行滤波。
图17所示出的流程图中提供正常模式无效信号的产生的实例。在框1701和1702描述求和节点1304所采取的动作。尤其,在框1701中,接收所命令的姿势(XCMD)和经修改的所命令姿势(XSLV),且在框1702中,计算所命令的姿势(XCMD)与经修改的所命令姿势(XSLV)之间的差。框1703到1707接下来描述调制系数发生器1305所采取的动作。在框1703中,确定所计算的差在第一方向(即,沿纵轴401的缩回方向)的投射,且在框1704中,作出投射是否超过阈值的确定。在此情况下,阈值应足够大,以确保外科医生真的希望缩回相机仪器211,且这不是不经意的动作,例如因手抖而导致。如果框1704中的确定为是,那么在框1705中,将当前调制系数设定为整数值“0”。另一方面,如果框1704中的确定为否,那么在框1706中,将当前调制系数设定为整数值“1”。注意,调制系数值赋值与缩回激活信号的产生中所使用的调制系数值赋值相反。这导致缩回和正常模式激活信号中的一个分阶段引入,而另一个正分阶段停止。在框1707中,然后将当前调制系数附加到先前处理周期中所产生的调制系数流。最后框1708描述低通滤波器1306所采取的动作。尤其,在框1708中,通过使调制系数流穿过低通滤波器1306来产生正常模式无效信号。然后该过程跳回到框1701,以为下一处理循环处理数据。
缩回模式推动块1003中的低通滤波器1206以及正常模式推动块1004中的低通滤波器1306的时间常数优选相同,使得在例如图11中所示的转变周期期间,分阶段引入和分阶段停止匹配,其中时间“t(k)”表示框1804和1704中的阈值确定第一次导致是确定的时间,时间“t(k-m)”表示在“t(k)”之前,框1804和1704中的阈值确定导致否确定的时间,且时间“t(k+m)”表示在“t(k)”之后,框1804和1704中的阈值确定仍导致是确定的时间。
图18示出如上文详细描述的概述本发明的第一实施例的流程图。在框1801中,从那时与姿势正被命令的关节式仪器相关联的输入装置接收所命令的姿势(XCMD)。在框1802中,使用虚拟约束(例如,参看图15所描述)来修改所命令的姿势。在框1803到1807中,产生第一力命令,其将分阶段引入以推动输入装置的操作者命令第一(新)优选姿势(例如,参看图12所描述),同时在框1808到1812中,产生第二力命令,其将分阶段停止,以推动输入装置的操作者命令第二(现任)优选姿势(例如,参看图13所描述)。在框1813中,将第一和第二力命令施加到输入装置,使得最初输入装置的操作者被促使命令第二优选姿势,然后随后在分阶段引入和分阶段停止转变周期之后,促使操作者命令第一优选姿势。
图19到21示出本发明的额外实施例,其包含参看图18所述的一些但非所有框的各种组合。尤其,图19示出第二实施例,其为第一实施例的修改,其中通过删除框1802,使用虚拟约束使得所命令的姿势不被修改,但执行第一实施例的所有其它框。图20示出第三实施例,其为第一实施例的修改,其中通过删除框808到812,第二(现任)优选姿势不活动,但执行具有已修改块813的第一实施例的所有其它框,因为不存在待分阶段停止的第二力命令。图21示出第四实施例,其为第三实施例的修改,其中通过删除框1802,使用虚拟约束使得所命令的姿势不被修改,但执行第三实施例的所有其它框。
图22到24示出本发明的其它实施例,其详细叙述先前所公开的某些实施例。尤其,鉴于先前实施例公开在某一时间(在转变周期之外)正活动的单个优选姿势,图22到24中所示的实施例预期在某一时间多个正活动的优选姿势的可能性,其中对活动的优选姿势进行加权,使得一个或一些可比其它更占优势。另外,加权提供额外的机制,通过所述机制,通过使其相应的权重可动态地更改(例如,逐步从权重“0”改变为权重“1”以分阶段引入对应的优选姿势,且相反地,逐步从权重“1”改变为权重“0”以分阶段停止对应的优选姿势)来过渡引入和过渡停止优选姿势。并且,鉴于先前实施例公开对于不同操作模式来说固定的优选姿势,图22到24中所示的实施例基于例如其它关节式仪器的当前或所命令姿势等系统数据来预期动态改变优选姿势的可能性。举例来说,相机仪器211的优选姿势可随着工具仪器231、241的末端执行器331、341的姿势改变而动态地改变,使得末端执行器331、341保持完全定位在相机仪器211的视野中。作为另一实例,关节式仪器211、231、241中每一个的优选姿势可动态地改变,以避免在使用节式仪器211、231、241的医疗程序的执行期间与节式仪器211、231、241中的其它仪器碰撞。
例如,图22示出用于关节式仪器的操作者所命令移动的替代仪器控制器的方框图。尽管实例是针对相机控制器213,但认识到,相同的通用结构可用于医疗机器人系统100中的其它装置控制器203、233、243。框610、601、605、606的功能与先前参考图6所述的功能相同。模拟仪器块2204的功能在逆向运动学和限制方面通常与图6的块604相同,但可在强加于所命令的姿势621上以产生经修改的所命令姿势2205的虚拟约束方面不同,因为不同的操作模式和/或优选姿势。同样地,姿势推动块2201的功能在将两个姿势推动贡献求和在一起的方面与块625相同,其中根据相应的激活信号,第一(新)优选姿势将分阶段引入,而第二(现任)优选姿势将分阶段停止。
姿势产生块2202包含于控制器213中,以动态地产生提供给姿势推动块2201的一个或更多个优选姿势,以及在适当的时候传递静态优选姿势。尤其,尽管可正常地传递姿势数据块626所提供的静态优选姿势,但随着条件例如,其周围的其它工具仪器231、241的姿势的改变,可将关节式相机仪器211的优选姿势从静态优选姿势动态地改变。作为一个实例,相机仪器211的优选姿势可在正常操作模式期间动态地改变,以避免与正在使用且因此在那时移动以对患者身体结构执行医疗程序的工具仪器231、241碰撞。为了动态地产生待分阶段引入的一个或更多个优选姿势(例如,图23的优选姿势2301、2303、2305)以及待分阶段停止的一个或更多个优选姿势(例如,优选姿势2401、2403、2405),姿势发生器块2202可将所述系统的一个或更多个状态的不同功能用于待动态地改变的优选姿势中的每一个。在此情况下,系统状态信息由系统数据2203提供。作为一个实例,系统数据2203可包括系统100中的其它仪器231、241的所命令姿势。作为另一实例,系统数据2203可包括如通过将正向运动学应用于其所感测到的接合点位置来确定的其它仪器231、241的实际姿势。
姿势推动块2201包含“分阶段引入”和“分阶段停止”推动块,其以与先前相对于图10的缩回模式和正常模式推动块1003和1004所描述的方式类似的方式,分别产生在输入转置108上将分阶段引入和分阶段停止的推动力。
图23作为示例,示出“分阶段引入”推动块的方框图。优选姿势2320由多个优选姿势(例如,优选姿势2301、2303、2305)的加权平均值产生,使得优选姿势中的每一个乘以对应的权重(例如,权重2302、2304、2306),其中所述权重的和等于“1”。权重可为固定值,或优选为动态值,所以优选姿势中的一个或更多个可在不同时间、在不同操作模式下或在不同系统条件下占优势。优选姿势2320与经修改的所命令姿势2205之间的差由求和节点2314计算。在框2315中去除所述差的非推动分量,且将结果提供给力转换器块2316,其产生力命令,例如参考图12的框1203所描述。分阶段引入激活信号由分阶段引入信号发生器块2317产生,为的是类以图11中的缩回模式激活信号1101。然后由振幅调制器2318,通过用分阶段引入激活信号对力转换器块2316所产生的力命令进行振幅调制,来产生在输入装置108上将分阶段引入的振幅经调制的力命令。
使用类似构造,图24作为示例,示出“分阶段停止”推动块的框图。在此情况下,优选姿势2420由多个优选姿势(例如,优选姿势2401、2403、2405)的加权平均值产生,使得优选姿势中的每一个乘以对应的权重(例如,权重2402、2404、2406),其中所述权重的和等于“1”。权重可为固定值,或优选为动态值,所以优选姿势中的一个或更多个可在不同时间、在不同操作模式下或在不同系统条件下占优势。优选姿势2420与经修改的所命令姿势2205之间的差由求和节点2414计算。在框2415中去除所述差的非推动分量,且将结果提供给力转换器块2416,其产生力命令,例如参考图12的框1203所描述。分阶段停止激活信号由分阶段停止信号发生器块2417产生,为的是类似图11中的正常模式激活信号1102。然后由振幅调制器2418,通过用分阶段停止激活信号对力转换器块2416所产生的力命令进行振幅调制,来产生提供给输入装置108且在输入装置108上将分阶段停止的振幅经调制的力命令。
除本文所述的实施例之外,认识到通过其各种技术的不同组合,可构造其它实施例,且完全预期所述其它实施例在本发明的范围内。尤其,尽管相对于优选和替代实施例已描述了本发明的各个方面,但将理解,本发明有权在所附权利要求书的完整范围内得到完全保护。
Claims (14)
1.一种用于促使操作者操纵输入装置来命令关节式仪器摆成优选姿势的方法,所述方法包括:
响应于输入装置的操作者操纵而产生所述关节式仪器的命令姿势;
通过以下步骤来修改所述命令姿势:施加虚拟屏障作为约束以防止所述关节式仪器被命令而在第一方向上移出所述虚拟屏障,直到所述关节式仪器的最靠近所述虚拟屏障但尚未与其碰到的至少一部分与第一优选姿势一致为止;
产生指示所述命令姿势与修改的命令姿势之间的差的调制系数流;
通过使所述调制系数流穿过低通滤波器来产生第一激活信号;
针对所述输入装置的多个自由度产生第一力命令,以便指示所述第一优选姿势与所述命令姿势之间的差;并且
通过根据所述第一激活信号分阶段引入其应用来将所述第一力命令应用于所述输入装置的所述多个自由度。
2.根据权利要求1所述的方法,其中产生所述调制系数流包括:
通过确定所述命令姿势与所述修改的命令姿势之间的差来产生调制系数流,
沿所述第一方向投射所述差,并且
通过在所述投射的差大于阈值时将当前调制系数设定为第一值且在所述投射的差小于或等于所述阈值时将所述当前调制系数设定为第二值来对所述投射的差进行二进制编码。
3.根据权利要求1所述的方法,其中产生所述第一力命令包括:
比较所述第一优选姿势与所述修改的命令姿势,以产生笛卡尔位置和速度误差;
通过移除沿所述第一方向且围绕所述关节式仪器的可枢转尖端的轴的组件来修改所述笛卡尔位置和速度误差;并且
使用所述修改的笛卡尔位置和速度误差来产生粘弹性六自由度力命令。
4.根据权利要求3所述的方法,其中产生所述粘弹性六自由度力命令包括:
通过位置增益放大所述修改的笛卡尔位置误差以产生第一结果,且将所述第一结果限制为位置饱和限制以产生第二结果;
通过速度增益放大所述修改的笛卡尔速度误差以产生第三结果;
通过从所述第二结果减去所述第三结果来产生临时的粘弹性六自由度力命令;并且
通过将所述临时的粘弹性六自由度力命令限制为力饱和限制来产生所述粘弹性六自由度力命令。
5.根据权利要求3所述的方法,其中通过根据所述第一激活信号分阶段引入其应用来将所述第一力命令应用于所述输入装置的所述多个自由度包括:
用所述第一激活信号对所述粘弹性六自由度力命令进行振幅调制。
6.根据权利要求1所述的方法,其进一步包括:
针对所述输入装置的多个自由度产生第二力命令,以便指示第二优选姿势与所述命令姿势之间的差;
在根据所述第一激活信号分阶段引入所述第一力命令的应用之前,将所述第二力命令应用于所述输入装置的所述多个自由度;并且
根据第二激活信号分阶段停止所述第二力命令的应用。
7.根据权利要求6所述的方法,其中所述第一激活信号和所述第二激活信号为互补信号,使得当所述第二激活信号分阶段停止时,所述第一激活信号分阶段引入。
8.一种机器人系统,其包括:
输入装置;
关节式仪器;以及
处理器,其经配置以:
响应于所述输入装置的操作者操纵而产生所述关节式仪器的命令姿势,
通过以下步骤来修改所述命令姿势:施加虚拟屏障作为约束以防止所述关节式仪器被命令而在第一方向上移出所述虚拟屏障,直到所述关节式仪器的最靠近所述虚拟屏障但尚未与其碰到的至少一部分与所述第一优选姿势一致为止;
产生指示所述命令姿势与修改的命令姿势之间的差的调制系数流;
通过使所述调制系数流穿过低通滤波器来产生第一激活信号;
针对所述输入装置的多个自由度产生第一力命令,以便指示所述第一优选姿势与所述命令姿势之间的差;并且
将所述第一力命令的应用命令到所述输入装置的所述多个自由度,以便根据所述第一激活信号分阶段引入其应用。
9.根据权利要求8所述的系统,其中所述处理器经配置以通过以下步骤来产生所述调制系数流:确定所述命令姿势与所述修改的命令姿势之间的差,沿所述第一方向投射所述差,并且通过在所述投射的差大于阈值时将当前调制系数设定为第一值且在所述投射的差小于或等于所述阈值时将所述当前调制系数设定为第二值来对所述投射的差进行二进制编码。
10.根据权利要求8所述的系统,其中所述处理器经配置以通过以下步骤产生所述第一力命令:比较所述第一优选姿势与所述修改的命令姿势,以产生笛卡尔位置和速度误差;通过移除沿所述第一方向且围绕所述关节式仪器的可枢转尖端的轴的组件来修改所述笛卡尔位置和速度误差;并且使用所述修改的笛卡尔位置和速度误差来产生粘弹性六自由度力。
11.根据权利要求10所述的系统,其中所述处理器经配置以通过以下步骤产生所述粘弹性六自由度力命令:通过位置增益放大所述修改的笛卡尔位置误差以产生第一结果,且将所述第一结果限制为位置饱和限制以产生第二结果;通过速度增益放大所述修改的笛卡尔速度误差以产生第三结果;通过从所述第二结果减去所述第三结果来产生临时粘弹性六自由度力命令;并且通过将所述临时粘弹性六自由度力命令限制为力饱和限制来产生所述粘弹性六自由度力命令。
12.根据权利要求10所述的系统,其中所述处理器经配置以:通过产生通过用所述第一激活信号对所述粘弹性六自由度力命令进行振幅调制来产生的振幅调制的力并且命令所述振幅调制的力应用到输入装置,来命令所述第一力命令应用到所述输入装置的所述多个自由度,以便根据所述第一激活信号分阶段引入其应用。
13.根据权利要求8所述的系统,所述处理器经配置以:针对所述输入装置的多个自由度产生第二力命令,以便指示第二优选姿势与所述命令姿势之间的差;在根据所述第一激活信号分阶段引入所述第一力命令的应用之前,将所述第二力命令应用于所述输入装置的所述多个自由度;并且根据第二激活信号分阶段停止所述第二力命令的应用。
14.根据权利要求13所述的系统,其中所述第一激活信号和所述第二激活信号为互补信号,使得当所述第二激活信号分阶段停止时,所述第一激活分阶段引入。
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CN103930063B (zh) | 2016-11-16 |
JP2015506850A (ja) | 2015-03-05 |
JP6087368B2 (ja) | 2017-03-01 |
EP3636197B1 (en) | 2024-01-03 |
EP2775950A4 (en) | 2015-08-26 |
US11596490B2 (en) | 2023-03-07 |
JP2017080887A (ja) | 2017-05-18 |
KR20140091039A (ko) | 2014-07-18 |
US20120059391A1 (en) | 2012-03-08 |
EP2775950A1 (en) | 2014-09-17 |
US9492927B2 (en) | 2016-11-15 |
EP3636197A1 (en) | 2020-04-15 |
KR102144799B1 (ko) | 2020-08-18 |
JP6617114B2 (ja) | 2019-12-04 |
KR20190133270A (ko) | 2019-12-02 |
US20170035521A1 (en) | 2017-02-09 |
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