Patents by Inventor Amir H. Chaghajerdi

Amir H. Chaghajerdi 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).

  • Detection pins to determine presence of surgical instrument and adapter on manipulator
    Patent number: 11045274
    Abstract: An instrument carriage provides control of a surgical instrument coupled to the instrument carriage. The instrument carriage includes a control surface that is coupled to the surgical instrument to provide the control. A detection pin having a first distal end that extends from the control surface is coupled to the instrument carriage. A sensor fixed relative to the instrument carriage detects a position of the detection pin. A carriage controller coupled to the sensor, provides a signal that indicates at least a first state and a second state responsive to a distance between the distal end of the detection pin and the control surface. The signal may indicate if an instrument sterile adapter is coupled to the control surface of the instrument carriage. A third state of the signal may indicate if a surgical instrument is coupled to the instrument sterile adapter.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: June 29, 2021
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Gregory W. Dachs, II, Bruce Michael Schena, Amir H. Chaghajerdi, Niels Smaby, Tyler J. Morrissette
  • DETECTION PINS TO DETERMINE PRESENCE OF SURGICAL INSTRUMENT AND ADAPTER ON MANIPULATOR
    Publication number: 20200281677
    Abstract: An instrument carriage provides control of a surgical instrument coupled to the instrument carriage. The instrument carriage includes a control surface that is coupled to the surgical instrument to provide the control. A detection pin having a first distal end that extends from the control surface is coupled to the instrument carriage. A sensor fixed relative to the instrument carriage detects a position of the detection pin. A carriage controller coupled to the sensor, provides a signal that indicates at least a first state and a second state responsive to a distance between the distal end of the detection pin and the control surface. The signal may indicate if an instrument sterile adapter is coupled to the control surface of the instrument carriage. A third state of the signal may indicate if a surgical instrument is coupled to the instrument sterile adapter.
    Type: Application
    Filed: January 21, 2020
    Publication date: September 10, 2020
    Inventors: Gregory W. Dachs, II, Bruce Michael Schena, Amir H. Chaghajerdi, Niels Smaby, Tyler J. Morrissette
  • Power disturbance compensation
    Patent number: 7486463
    Abstract: A method for compensating for a disturbance in power from a power supply, wherein the disturbance without the compensating would otherwise affect a positioning apparatus coupled to the power supply. The method comprises receiving the disturbance in power from the power supply, deriving a compensation for the disturbance in the power, and transmitting the compensation to a control system for the positioning apparatus.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: February 3, 2009
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Adrian E. Cerda, Amir H. Chaghajerdi, Pushkar Hingwe, Bryan S. Rowan