Patents by Inventor John S. Ketchel

John S. Ketchel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Surgical manipulator and method for transitioning between operating modes
    Patent number: 10420619
    Abstract: A surgical manipulator operates in a manual mode in which a user applies forces and torques to the surgical instrument to cause movement of the energy applicator. The surgical manipulator also operates in a semi-autonomous mode in which the surgical manipulator moves the energy applicator along a tool path. A controller monitors output of a force/torque sensor as the energy applicator is being moved along the tool path in the semi-autonomous mode and transitions from the semi-autonomous mode to the manual mode in response to the output exceeding a limit.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: September 24, 2019
    Assignee: STRYKER CORPORATION
    Inventors: David Gene Bowling, John Michael Stuart, Joel N. Beer, John S. Ketchel
  • Robotic system and method for reorienting a surgical instrument moving along a tool path
    Patent number: 9681920
    Abstract: Robotic system and method for positioning an energy applicator extending from a surgical instrument. The robotic system includes a surgical manipulator operable in a manual mode or a semi-autonomous mode. The surgical manipulator moves the energy applicator along a tool path in the semi-autonomous mode, monitors output of a force/torque sensor as the energy applicator moves along the tool path, and reorients the surgical instrument based on the output in response to a user applying reorienting forces and torques to the surgical instrument.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: June 20, 2017
    Assignee: STRYKER CORPORATION
    Inventors: David Gene Bowling, John Michael Stuart, Jerry A. Culp, Donald W. Malackowski, José Luis Moctezuma de la Barrera, Patrick Roessler, Joel N. Beer, John S. Ketchel
  • Surgical Manipulator and Method for Transitioning Between Operating Modes
    Publication number: 20170128147
    Abstract: A surgical manipulator operates in a manual mode in which a user applies forces and torques to the surgical instrument to cause movement of the energy applicator. The surgical manipulator also operates in a semi-autonomous mode in which the surgical manipulator moves the energy applicator along a tool path. A controller monitors output of a force/torque sensor as the energy applicator is being moved along the tool path in the semi-autonomous mode and transitions from the semi-autonomous mode to the manual mode in response to the output exceeding a limit.
    Type: Application
    Filed: January 24, 2017
    Publication date: May 11, 2017
    Applicant: Stryker Corporation
    Inventors: David Gene Bowling, John Michael Stuart, Joel N. Beer, John S. Ketchel
  • Robotic system and method for transitioning between operating modes
    Patent number: 9566122
    Abstract: A robotic system includes a surgical manipulator and a force/torque sensor. The surgical manipulator operates in a first operating mode in which a user applies forces and torques to the surgical instrument to cause movement of the energy applicator. The surgical manipulator also operates in a second operating mode in which the surgical manipulator moves the energy applicator along a tool path. A controller monitors the output of the force/torque sensor as the energy applicator is being moved along the tool path in the second operating mode and transitions from the second operating mode to the first operating mode in response to the output exceeding associated limits.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: February 14, 2017
    Assignee: STRYKER CORPORATION
    Inventors: David Gene Bowling, John Michael Stuart, Joel N. Beer, John S. Ketchel
  • MANIPULATOR
    Publication number: 20100275718
    Abstract: A manipulator, such as for use in medical procedures, is provided. The manipulator includes a body and a first actuator system connected to the body at a first attachment point and is capable of moving the first attachment point with at least three degrees of freedom. A second actuator system is connected to the body at a second attachment point and is capable of moving the second attachment point with at least three degrees of freedom. A third actuator system is connected to the body at a third attachment point and is capable of moving the third attachment point with at least one degree of freedom.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 4, 2010
    Applicant: MicroDexterity Systems, Inc.
    Inventors: J. Michael Stuart, Joel N. Beer, David G. Bowling, John S. Ketchel