Robotic endocutter drivetrain with bailout and manual opening

    公开(公告)号:US11504146B2

    公开(公告)日:2022-11-22

    申请号:US16552402

    申请日:2019-08-27

    Applicant: Ethicon LLC

    Inventor: Mark D. Overmyer

    Abstract: Various embodiments of tool assemblies are provided having at least one rotary input coupling and at least one linear input coupling for allowing either a rotary output or a linear output (e.g., from a tool driver on a surgical robot) to activate at least one mechanism of the tool assembly. For example, mechanisms of the tool assembly can include a clamping assembly, a firing assembly, an articulation assembly, and a roll assembly. The clamping assembly can open and close jaws of an end effector, the firing assembly can translate a knife assembly through the end effector to fire staples and cut tissue, the articulation assembly can articulate the end effector, and the roll assembly can rotate the elongate shaft and/or the end effector.

    Surgical stapler having motor control based on an electrical parameter related to a motor current

    公开(公告)号:US11490889B2

    公开(公告)日:2022-11-08

    申请号:US17023661

    申请日:2020-09-17

    Applicant: Ethicon LLC

    Abstract: A surgical stapler. The surgical stapler includes a drive system, an electric motor, a battery and a control system. The electric motor is mechanically coupled to the drive system. The battery is electrically couplable to the electric motor. The control system is electrically connected to the electric motor and includes an H-bridge circuit, an electrically resistive element and an electrically inductive element. The H-bridge circuit includes a high side and a low side. The low side of the H-bridge circuit includes first and second switching devices. The electrically resistive element is electrically connected in series with the first switching device. The electrically inductive element is electrically connected to the electrically resistive element. The control system is configured to control a force applied to the drive system based on a current downstream of the electrically resistive element.

    Manual knife bailout monitoring using inductive coupling

    公开(公告)号:US11202686B2

    公开(公告)日:2021-12-21

    申请号:US16547270

    申请日:2019-08-21

    Applicant: Ethicon LLC

    Inventor: Mark D. Overmyer

    Abstract: A robotic surgical tool includes a tool driver, a drive housing mountable to the tool driver and including one or more component parts made of or including a magnetically responsive material, a first inductor coil included on the tool driver and configured to generate a magnetic field, and a second inductor coil included on the drive housing and configured to measure an intensity of the magnetic field and a field distortion caused by the one or more component parts. A change in the field distortion provides an indication of movement of the one or more component parts.

    USER INPUT DEVICE FOR ROBOTIC SURGICAL SYSTEM

    公开(公告)号:US20210196411A1

    公开(公告)日:2021-07-01

    申请号:US17143252

    申请日:2021-01-07

    Applicant: Ethicon LLC

    Abstract: A robotic surgical system includes a robotic surgical assembly and a control assembly. The robotic surgical assembly includes a robotic actuation assembly, a processing device, and a first communication device. The robotic actuation assembly includes a robotic arm. The processing device is configured to instruct the robotic actuation assembly to perform a task based on a set of instructions. The first communication device is operable to transfer the set of instructions to the processing device. The control assembly includes a second communication device and a user input device. The second communication device is operable to communicate the set of instructions to the first communication device. The user input device assembly is configured to generate the set of instructions and send the set of instruction to the second communication device. At least a portion of the instructions are based on positioning of the user input device within three-dimensional space.

    Closure Mechanism for Surgical Tool

    公开(公告)号:US20210059773A1

    公开(公告)日:2021-03-04

    申请号:US16554135

    申请日:2019-08-28

    Applicant: Ethicon LLC

    Abstract: A surgical tool includes a drive housing, a closure tube that extends from the drive housing, an end effector arranged at an end of the closure tube and having opposing jaws, and a closure yoke mounted to the closure tube and having a projection extending therefrom. A gearing assembly includes one or more spur gears attached to a corresponding one or more drive shafts such that rotation of the one or more drive shafts correspondingly rotates the one or more spur gears, and a closure cam gear positioned to intermesh with the one or more spur gears and defining a profile that receives the projection. Rotating the one or more spur gears causes the closure cam gear to rotate, which causes the projection to traverse the profile, and the projection traversing the profile urges the closure yoke and the closure tube to linearly displace and thereby actuate the jaws.

    User input device for robotic surgical system

    公开(公告)号:US10912618B2

    公开(公告)日:2021-02-09

    申请号:US16802646

    申请日:2020-02-27

    Applicant: Ethicon LLC

    Abstract: A robotic surgical system includes a robotic surgical assembly and a control assembly. The robotic surgical assembly includes a robotic actuation assembly, a processing device, and a first communication device. The robotic actuation assembly includes a robotic arm. The processing device is configured to instruct the robotic actuation assembly to perform a task based on a set of instructions. The first communication device is operable to transfer the set of instructions to the processing device. The control assembly includes a second communication device and a user input device. The second communication device is operable to communicate the set of instructions to the first communication device. The user input device assembly is configured to generate the set of instructions and send the set of instruction to the second communication device. At least a portion of the instructions are based on positioning of the user input device within three-dimensional space.

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