Patents by Inventor Hsien-Hsin Liao

Hsien-Hsin Liao 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).

  • Patent number: 10483881
    Abstract: A method for torque compensation of a motor associated with a medical instrument includes determining a torque profile for a motor, the torque profile defining torque output as a function of rotor angle and during operation of the motor, compensating for deviations in the torque profile by adjusting an input signal to the motor, the compensating being based on the torque profile and rotor position.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: November 19, 2019
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Hsien-Hsin Liao, Niels Smaby, Gregory W. Dachs, II, Pushkar Hingwe, Amir Chaghajerdi
  • Publication number: 20190015168
    Abstract: A surgical system is provided comprising: an input device: and a controller for receiving control inputs from the input device and for providing haptic feedback at the input device, the controller configured to apply a staged transition from a first haptic feedback profile at the input device to a second haptic feedback profile at the input device.
    Type: Application
    Filed: January 12, 2017
    Publication date: January 17, 2019
    Inventors: Lawton N. Verner, Hsien-Hsin Liao
  • Publication number: 20190015169
    Abstract: A surgical system is provided comprising: an input device; a first actuator and a second actuator; a controller for controlling the first actuator and the second actuator, the controller configured to apply a first scale factor to a first commanded output and a second commanded output for the first actuator the second actuator, respectively, when the first commanded output would fall outside a first predetermined working range of the first actuator, wherein the first scale factor adjusts the first commanded output to be within the first predetermined working range.
    Type: Application
    Filed: January 12, 2017
    Publication date: January 17, 2019
    Inventors: Lawton N. Verner, Hsien-Hsin Liao
  • Publication number: 20180168756
    Abstract: A surgical instrument is configured to be installed for use on a teleoperated surgical system. A surgeon or other medical person controls the surgical instrument by manipulating one or more control inputs. Computer-assisted teleoperated actuators of the teleoperated surgical system move one or more surgical instrument mechanical degrees of freedom in response to movements of the one or more control inputs. A teleoperated surgical system is provided to enable a surgeon or medical person to manually control one or more surgical instrument mechanical degrees of freedom, while the surgical instrument is installed for use is installed on the teleoperated surgical system.
    Type: Application
    Filed: June 10, 2016
    Publication date: June 21, 2018
    Inventors: HSIEN-HSIN LIAO, Julie L. Berry, Pushkar Hingwe, Brandon D. Itkowitz
  • Publication number: 20180078321
    Abstract: A controller stores the orientations of a master tool grip and a slave surgical instrument tip upon completion of a master-slave alignment process, and enters following. During following each commanded movement of the slave surgical instrument tip from the master tool grip is processed by the controller to compensate for any alignment error between the master tool grip and the slave surgical instrument tip before following was entered. The result of this processing is that the motion of the slave surgical instrument tip intuitively corresponds to the motion of the master tool grip despite an initial swooping orientation misalignment between the master tool grip and the slave surgical instrument tip.
    Type: Application
    Filed: June 10, 2016
    Publication date: March 22, 2018
    Applicant: Intuitive Surgical Operations, Inc.
    Inventor: Hsien-Hsin Liao
  • Publication number: 20170179857
    Abstract: A method for torque compensation of a motor associated with a medical instrument includes determining a torque profile for a motor, the torque profile defining torque output as a function of rotor angle and during operation of the motor, compensating for deviations in the torque profile by adjusting an input signal to the motor, the compensating being based on the torque profile and rotor position.
    Type: Application
    Filed: February 17, 2015
    Publication date: June 22, 2017
    Applicant: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Hsien-Hsin Liao, Niels Smaby, Gregory W. Dachs II, Pushkar Hingwe, Amir Chaghajerdi