Tension control in actuation of jointed instruments

    公开(公告)号:US11540889B2

    公开(公告)日:2023-01-03

    申请号:US16762665

    申请日:2018-09-10

    Abstract: A medical instrument system includes actuators, a medical instrument, and a control system operably connected to the actuators. The medical instrument includes an end portion and transmission systems, each of which couples the end portion to an actuator of the actuators such that the actuators are operable to drive the transmission systems to move the end portion. The control system is configured to execute operations including determining a difference between a current configuration of the end portion and a desired configuration of the end portion, and operating the actuators to apply tensions to the transmission systems based on the difference and based on constant offset tensions. The constant offset tensions are independent of current tensions experienced by the transmission systems.

    TENSION CONTROL IN ACTUATION OF JOINTED INSTRUMENTS

    公开(公告)号:US20230072380A1

    公开(公告)日:2023-03-09

    申请号:US17989430

    申请日:2022-11-17

    Abstract: A medical instrument system includes actuators, a medical instrument, and a control system operably connected to the actuators. The medical instrument includes an end portion and transmission systems, each of which couples the end portion to an actuator of the actuators such that the actuators are operable to drive the transmission systems to move the end portion. The control system is configured to execute operations including determining a difference between a current configuration of the end portion and a desired configuration of the end portion, and operating the actuators to apply tensions to the transmission systems based on the difference and based on constant offset tensions. The constant offset tensions are independent of current tensions experienced by the transmission systems.

    TENSION CONTROL IN ACTUATION OF JOINTED INSTRUMENTS

    公开(公告)号:US20240423740A1

    公开(公告)日:2024-12-26

    申请号:US18810858

    申请日:2024-08-21

    Abstract: A medical instrument system includes actuators, a medical instrument, and a control system operably connected to the actuators. The medical instrument includes a reconfigurable portion and transmission systems, each of which couples the reconfigurable portion to an actuator of the actuators such that the actuators are operable to drive the transmission systems to move the end portion. The control system is configured to execute operations including determining a difference between a current configuration of the end portion and a desired configuration of the reconfigurable portion, and operating the actuators to apply tensions to the transmission systems based on the difference and based on a nominal tension.

    TENSION CONTROL IN ACTUATION OF JOINTED INSTRUMENTS

    公开(公告)号:US20200275984A1

    公开(公告)日:2020-09-03

    申请号:US16762665

    申请日:2018-09-10

    Abstract: A medical instrument system includes actuators, a medical instrument, and a control system operably connected to the actuators. The medical instrument includes an end portion and transmission systems, each of which couples the end portion to an actuator of the actuators such that the actuators are operable to drive the transmission systems to move the end portion. The control system is configured to execute operations including determining a difference between a current configuration of the end portion and a desired configuration of the end portion, and operating the actuators to apply tensions to the transmission systems based on the difference and based on constant offset tensions. The constant offset tensions are independent of current tensions experienced by the transmission systems.

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