METHOD FOR CALIBRATING A MICROSURGICAL INSTRUMENT OF A TELEOPERATED ROBOTIC SURGERY SYSTEM AND RELATED SYSTEM

    公开(公告)号:US20240277431A1

    公开(公告)日:2024-08-22

    申请号:US18570380

    申请日:2022-06-16

    摘要: A method calibrates a surgical instrument of a teleoperated robotic surgery system. The surgical instrument has transmission elements associated with respective tendons and connected to an articulated end-effector connectable, to determine correlate movements between the transmission elements and articulated end-effector. Motorized actuators operatively connect to respective transmission elements to impart movement. The articulated end-effector is arranged and locked in a predetermined reference position univocally associated with a respective resulting position of each transmission element. The actuators are then actuated so each actuator contacts a respective transmission element and the position of the actuators when each actuator contacts a respective transmission element is stored, and the stored actuator reference positions are univocally associated with the end-effector reference position. A kinematic zero condition associates the stored actuator reference position with a virtual zero point. The actuating applies force less than or equal to a threshold force on the respective transmission element.

    METHOD OF TELEOPERATION PREPARATION IN A TELEOPERATED ROBOTIC SURGERY SYSTEM AND RELATED SYSTEM

    公开(公告)号:US20240277432A1

    公开(公告)日:2024-08-22

    申请号:US18570447

    申请日:2022-06-16

    IPC分类号: A61B34/35 A61B34/00 A61B34/30

    摘要: A method of teleoperation preparation in a teleoperated robotic surgery system is performed during a non-operating step. The applicable robotic system includes motorized actuators, and a surgical instrument. The surgical instrument includes an articulated end-effector having a degree/degrees of freedom. The surgical instrument includes a pair of antagonistic tendons, mounted in the surgical instrument operatively connected/connectable to the motorized actuators and to the respective end-effector links. The antagonistic tendons actuate degree/degrees of freedom associated therewith, between the degree/degrees of freedom thus determining antagonistic effects. The method includes establishing a univocal correlation motorized actuators' movements and articulated end-effector movements. A holding step includes tensile-stressing a pair of antagonistic tendons, and holding the tendons in a tensile-stressed state, by applying a holding force to the tendons, adapted to determine a loaded state of the tendons. A command is given to enter teleoperation. A corresponding teleoperated robotic surgery system performs the method.