METHODS AND DEVICES FOR ACTUATING SURGICAL INSTRUMENTS

    公开(公告)号:US20210015515A1

    公开(公告)日:2021-01-21

    申请号:US17029681

    申请日:2020-09-23

    申请人: Ethicon LLC

    摘要: Various exemplary methods and devices for actuating surgical instruments are provided. In general, a surgical device can include one or more actuation shafts configured to facilitate actuation of the device. In an exemplary embodiment, the device can include four actuation shafts, two actuation shafts to facilitate articulation of the device, one actuation shaft to facilitate opening and closing of jaws at a distal end of the device, and one actuation shaft to facilitate moving a cutting element of the device. In an exemplary embodiment, each of the one or more actuation shafts can include a distal elongate member and a proximal elongate member having a proximal end attached to a distal end of the distal elongate member. The proximal elongate member can be rigid, and the distal elongate member can be flexible.

    JAW FOR SURGICAL INSTRUMENT END EFFECTOR

    公开(公告)号:US20220015823A1

    公开(公告)日:2022-01-20

    申请号:US16931495

    申请日:2020-07-17

    申请人: Ethicon LLC

    IPC分类号: A61B18/14

    摘要: An apparatus including a body, a shaft assembly extending distally from the body, and an end effector configured to grasp and transmit RF energy to the tissue. The end effector includes a first jaw having a first tissue grasping feature and a second jaw. The second jaw is pivotably coupled to the first jaw between an open position, a partially closed position, and a closed position. The second jaw includes a proximal taper having a proximal electrode surface, a distal taper including a distal electrode surface, and a juncture between the proximal and distal electrode surface. The juncture is spaced further from the first tissue grasping feature compared to the proximal and distal end while the second jaw is in the partially closed position. The proximal and distal electrode surface deform to define a gap with the first tissue grasping feature while in the closed position.

    Combination ultrasonic and electrosurgical instrument having slip ring electrical contact assembly

    公开(公告)号:US10945778B2

    公开(公告)日:2021-03-16

    申请号:US15967746

    申请日:2018-05-01

    申请人: ETHICON LLC

    摘要: A surgical instrument includes a body, a shaft assembly rotatable relative to the body, and an end effector at a distal end of the shaft assembly and having an RF electrode operable to seal tissue with RF energy. An electrical contact assembly is arranged proximally of the end effector and is configured to electrically couple the RF electrode with an RF energy source. The electrical contact assembly includes a first electrical contact secured to the body and a second electrical contact secured to the shaft assembly. The first contact is configured to electrically couple with the RF energy source. The second contact is electrically coupled with the RF electrode and the first contact, and is configured to rotate with the shaft assembly relative to the first contact. The first and second electrical contacts are configured to remain electrically coupled throughout rotation of the shaft assembly relative to the body.