INSTRUMENT FORCE SENSOR USING STRAIN GAUGES IN A FARADAY CAGE

    公开(公告)号:US20190069966A1

    公开(公告)日:2019-03-07

    申请号:US16072140

    申请日:2017-01-31

    IPC分类号: A61B34/00 A61B90/00

    摘要: A surgical instrument includes a force sensor apparatus that is immune to noise from arcing cautery without relying on fiber optic strain gauges, and that is autoclabable. The surgical instrument includes a housing, a shaft, the force sensor apparatus, a joint, and an end component. The force sensor apparatus includes at least one strain gauge that is enclosed in a Faraday cage. The Faraday cage includes a sensor capsule that includes one or more strain gauges, a cable shield tube connected to the sensor capsule, and an electronics enclosure connected to the cable shield tube. The sensor capsule is positioned between the joint and the shaft. The cable shield tube extends through the shaft to the electronics enclosure that is within the housing.

    AUTOMATIC MOTION DAMPING OF TELEOPERATED SURGICAL SYSTEM MANIPULATORS

    公开(公告)号:US20230138396A1

    公开(公告)日:2023-05-04

    申请号:US17976510

    申请日:2022-10-28

    IPC分类号: A61B34/35 H02P7/281

    摘要: A teleoperated surgical system includes a manipulator, an electric motor, and a power circuit. The motor is operatively connected to and configured to drive movement of at least a portion of the manipulator. The power circuit includes a plurality of wires and a switch. The wires connect a selectively activated power source to the motor. The switch is connected to the wires between the power source and the motor. On a first condition in which the power source changes from an activated state to a deactivated state, the switch short-circuits the motor to cause the unpowered motor to automatically dampen motion of the at least a portion of the manipulator. On a second condition in which the power source changes from the deactivated state to the activated state, the switch electrically connects the motor to the power source to supply operating power from the power source to the motor via the wires.

    MASTER/SLAVE REGISTRATION AND CONTROL FOR TELEOPERATION

    公开(公告)号:US20230131431A1

    公开(公告)日:2023-04-27

    申请号:US17990318

    申请日:2022-11-18

    摘要: A teleoperated system comprises a display, a master input device, and a control system. The control system is configured to determine an orientation of an end effector reference frame relative to a field of view reference frame, determine an orientation of a master input device reference frame relative to a display reference frame, establish an alignment relationship between the master input device reference frame and the display reference frame, and command, based on the alignment relationship, a change in a pose of the end effector in response to a change in a pose of the master input device. The alignment relationship is independent of a position relationship between the master input device reference frame and the display reference frame. In one aspect, the teleoperated system is a telemedical system such as a telesurgical system.