Patents by Inventor Craig Tsuji

Craig Tsuji 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).

  • Publication number: 20250082360
    Abstract: A surgical instrument includes a chassis, an outer tube having a proximal end operably coupled to the chassis, and an inner tube extending within the outer tube. The inner tube has a proximal end operably coupled to the chassis to allow slidable movement of the inner tube relative to the outer tube in response to a force imparted to a distal end of the inner tube, and such that frictional force imparted to an outer surface of the outer tube is not imparted to the inner member.
    Type: Application
    Filed: November 25, 2024
    Publication date: March 13, 2025
    Applicant: Intuitive Surgical Operations, Inc.
    Inventors: David I. MOREIRA RIDSDALE, Harsukhdeep S. RATIA, Craig TSUJI, Zhou YE
  • Patent number: 12239393
    Abstract: A medical device includes a shaft, a beam, a hard stop structure, and a link. A proximal end portion of the beam is coupled to the distal end portion of the shaft and a distal end portion of the beam is coupled to the link. A strain sensor is on the beam. A hard stop structure includes a proximal end portion, a distal end portion, and first opposing stop surfaces. The proximal end portion of the hard stop structure is coupled to a distal end portion of the shaft, and the distal end portion of the hard stop structure is coupled to the link. The first opposing stop surfaces are positioned to limit a lateral range of motion of the distal end of the beam with reference to the proximal end of the beam in a first direction by the first stop surfaces contacting one another.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: March 4, 2025
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Zhou Ye, Harsukhdeep Ratia, Ashwinram Suresh, Craig Tsuji
  • Patent number: 12185974
    Abstract: A surgical instrument includes a chassis, an outer tube having a proximal end operably coupled to the chassis, and an inner tube extending within the outer tube. The inner tube has a proximal end operably coupled to the chassis to allow slidable movement of the inner tube relative to the outer tube in response to a force imparted to a distal end of the inner tube, and such that frictional force imparted to an outer surface of the outer tube is not imparted to the inner member.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: January 7, 2025
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: David I. Moreira Ridsdale, Harsukhdeep S. Ratia, Craig Tsuji, Zhou Ye
  • Publication number: 20240173092
    Abstract: A method for attaching a surgical instrument to an instrument carriage includes engaging an instrument sterile adapter with an instrument carriage using a first latch mechanism of the instrument sterile adapter; and engaging a surgical instrument with the instrument sterile adapter using a second latch mechanism of the instrument sterile adapter. In an engaged state of the second latch mechanism with surgical instrument the first latch mechanism is not disengageable from the instrument carriage. The first latch mechanism and the second latch mechanism are coupled to a frame portion of the instrument sterile adapter via a connecting member.
    Type: Application
    Filed: February 2, 2024
    Publication date: May 30, 2024
    Applicant: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Gregory W. Dachs, II, Bruce Michael Schena, Donald Alden, Edward P. Donlon, Scott Harrington, Craig Tsuji, William A. Burbank
  • Publication number: 20240148405
    Abstract: A surgical instrument includes a chassis, an outer tube having a proximal end operably coupled to the chassis, and an inner tube extending within the outer tube. The inner tube has a proximal end operably coupled to the chassis to allow slidable movement of the inner tube relative to the outer tube in response to a force imparted to a distal end of the inner tube, and such that frictional force imparted to an outer surface of the outer tube is not imparted to the inner member.
    Type: Application
    Filed: October 15, 2020
    Publication date: May 9, 2024
    Applicant: Intuitive Surgical Operations, Inc.
    Inventors: David I. MOREIRA RIDSDALE, Harsukhdeep S. RATIA, Craig TSUJI, Zhou YE
  • Patent number: 11944403
    Abstract: An instrument sterile adapter couples a surgical instrument and an instrument carriage. The instrument sterile adapter includes an instrument plate that provides a first surface to receive the surgical instrument and a latch plate joined to the instrument plate. The latch plate includes a second surface to receive the instrument carriage and latch structures. Each latch structure has a carriage latch arm that extends away from the second surface of the latch plate and an instrument latch arm joined to the carriage latch arm. The instrument latch arm extends through the instrument plate and away from the first surface of the instrument plate. A connecting member flexibly connects the carriage latch arm and the instrument latch arm to a remainder of the latch plate. The connecting member may be perpendicular to the latch arms. The latch arms may engage fixed locking surfaces in the instrument carriage and the surgical instrument.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: April 2, 2024
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Gregory W. Dachs, II, Bruce Michael Schena, Donald Alden, Edward P. Donlon, Scott Harrington, Craig Tsuji, William A. Burbank
  • Publication number: 20240009441
    Abstract: A valve system comprises a first valve plunger configured for insertion into a first valve plunger channel. The first valve plunger has a first latch member disposed at a distal end. A first sealing member and a first valve are opening disposed proximally from the first latch member. The valve system also comprises a second valve plunger configured for insertion into a second valve plunger channel. The second valve plunger includes a second valve opening that is longer than the first valve opening. The valve system also includes a valve body having the first and second valve plunger channels. The first and second valve plunger channels are configured to receive the first and second valve plungers, respectively.
    Type: Application
    Filed: September 22, 2023
    Publication date: January 11, 2024
    Inventors: Edward P. Donlon, Craig Tsuji
  • Patent number: 11864853
    Abstract: A surgical instrument may comprise a chassis configured to be removably coupled with a surgical robotic manipulator and may comprise an elongate flexible shaft coupled to the chassis. The surgical instrument may also comprise a robotic actuation piece coupled to and rotatable relative to the chassis and a manual actuator coupled to and translatable relative to the chassis. A rack gear may be engaged with the manual actuator and with the robotic actuation piece. The rack gear may be movable by the robotic actuation piece and by the manual actuator to control an operation of the elongate flexible shaft.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: January 9, 2024
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Todd J. Radgowski, Craig Tsuji
  • Patent number: 11793990
    Abstract: A suction/irrigation medical device comprises a valve body having one or more conduits fluidically coupled thereto and a first channel extending through the valve body. The medical device also comprises a first valve plunger disposed along the first channel and configured to move along an axis to open and close the first channel. The first valve plunger has a first opening to permit a fluid to flow through the first channel. The medical device also comprises a second valve plunger disposed along the first channel and along a second channel to couple the second channel into the first channel when the second valve plunger is in a first position. The second valve plunger has a second opening that has at least one dimension that is greater than a corresponding dimension of the first opening of the first valve plunger.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: October 24, 2023
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Edward P. Donlon, Craig Tsuji
  • Patent number: 11478317
    Abstract: An apparatus includes a housing, a cable guide, a first cable, and a second cable. The housing is coupled to a shaft of a medical instrument. The cable guide is coupled to the housing, and defines a shaft opening into a passageway defined by the shaft. A first guide groove and a second guide groove are defined by the cable guide, with each of the first guide groove and the second guide groove being splayed outward from the shaft opening. The first cable is routed within the first guide groove and through the shaft opening, and is configured to slide within the first guide groove. The second cable is routed within the second guide groove and through the shaft opening, and is configured to slide within the second guide groove.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: October 25, 2022
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Edward P. Donlon, Craig Tsuji, Alain Sadaka
  • Publication number: 20220249181
    Abstract: A surgical instrument may comprise a chassis configured to be removably coupled with a surgical robotic manipulator and may comprise an elongate flexible shaft coupled to the chassis. The surgical instrument may also comprise a robotic actuation piece coupled to and rotatable relative to the chassis and a manual actuator coupled to and translatable relative to the chassis. A rack gear may be engaged with the manual actuator and with the robotic actuation piece. The rack gear may be movable by the robotic actuation piece and by the manual actuator to control an operation of the elongate flexible shaft.
    Type: Application
    Filed: March 30, 2022
    Publication date: August 11, 2022
    Inventors: Todd J. Radgowski, Craig Tsuji
  • Patent number: 11317977
    Abstract: A method for using a surgical instrument comprises actuating a movable valve member at a first time using robotic action and actuating the valve member at a second time using manual action. The instrument comprises the valve member, a robotic actuation piece, a chassis, a transport shaft coupled to the chassis, a cavity extending through the transport shaft, and a valve. The chassis is adapted to be mated with a robotic manipulator. The valve comprises the valve member, a manual button coupled thereto, and a valve channel. The valve member is configured to translate across the valve channel along an axis. Robotic actuation comprises rotating the robotic actuation piece around an axis perpendicular to the axis of the valve member. Manual action comprises translating the manual button parallel to the axis of the valve member. The robotic actuation piece remains engaged with the valve member during the manual action.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: May 3, 2022
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Todd J. Radgowski, Craig Tsuji
  • Publication number: 20220105336
    Abstract: A suction/irrigation medical device comprises a valve body having one or more conduits fluidically coupled thereto and a first channel extending through the valve body. The medical device also comprises a first valve plunger disposed along the first channel and configured to move along an axis to open and close the first channel. The first valve plunger has a first opening to permit a fluid to flow through the first channel. The medical device also comprises a second valve plunger disposed along the first channel and along a second channel to couple the second channel into the first channel when the second valve plunger is in a first position. The second valve plunger has a second opening that has at least one dimension that is greater than a corresponding dimension of the first opening of the first valve plunger.
    Type: Application
    Filed: December 16, 2021
    Publication date: April 7, 2022
    Inventors: Edward P. Donlon, Craig Tsuji
  • Patent number: 11224733
    Abstract: A suction/irrigation medical device valve system comprises a first valve plunger configured for insertion into a first valve plunger channel. The first valve plunger has a first latch member disposed at a distal end with a first sealing member and a first valve opening disposed proximally from the first latch member. The system also comprises a second valve plunger configured for insertion into a second valve plunger channel. The second valve plunger includes a second valve opening that is longer than the first valve opening. The system also comprises a valve body having the first and second valve plunger channels. The first and second valve plunger channels are configured to receive the first and second valve plungers, respectively.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: January 18, 2022
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Edward P. Donlon, Craig Tsuji
  • Publication number: 20210353373
    Abstract: A medical device includes a shaft, a beam, a hard stop structure, and a link. A proximal end portion of the beam is coupled to the distal end portion of the shaft and a distal end portion of the beam is coupled to the link. A strain sensor is on the beam. A hard stop structure includes a proximal end portion, a distal end portion, and first opposing stop surfaces. The proximal end portion of the hard stop structure is coupled to a distal end portion of the shaft, and the distal end portion of the hard stop structure is coupled to the link. The first opposing stop surfaces are positioned to limit a lateral range of motion of the distal end of the beam with reference to the proximal end of the beam in a first direction by the first stop surfaces contacting one another.
    Type: Application
    Filed: May 17, 2021
    Publication date: November 18, 2021
    Applicant: Intuitive Surgical Operations, Inc.
    Inventors: Zhou YE, Harsukhdeep RATIA, Ashwinram SURESH, Craig TSUJI
  • Publication number: 20210322118
    Abstract: An apparatus includes a housing, a cable guide, a first cable, and a second cable. The housing is coupled to a shaft of a medical instrument. The cable guide is coupled to the housing, and defines a shaft opening into a passageway defined by the shaft. A first guide groove and a second guide groove are defined by the cable guide, with each of the first guide groove and the second guide groove being splayed outward from the shaft opening. The first cable is routed within the first guide groove and through the shaft opening, and is configured to slide within the first guide groove. The second cable is routed within the second guide groove and through the shaft opening, and is configured to slide within the second guide groove.
    Type: Application
    Filed: May 7, 2021
    Publication date: October 21, 2021
    Applicant: Intuitive Surgical Operations, Inc.
    Inventors: Edward P. DONLON, Craig TSUJI, Alain SADAKA
  • Patent number: 11026759
    Abstract: An apparatus includes a housing, a cable guide, a first cable, and a second cable. The housing is coupled to a shaft of a medical instrument. The cable guide is coupled to the housing, and defines a shaft opening into a passageway defined by the shaft. A first guide groove and a second guide groove are defined by the cable guide, with each of the first guide groove and the second guide groove being splayed outward from the shaft opening. The first cable is routed within the first guide groove and through the shaft opening, and is configured to slide within the first guide groove. The second cable is routed within the second guide groove and through the shaft opening, and is configured to slide within the second guide groove.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: June 8, 2021
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Edward P. Donlon, Craig Tsuji, Alain Sadaka
  • Patent number: D921186
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: June 1, 2021
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Timothy B. Hulford, Robert B. Hubler, Elie Eyram Ahovi, Craig Tsuji, Edward P. Donlon
  • Patent number: D922562
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: June 15, 2021
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Timothy B. Hulford, Robert B. Hubler, Elie Eyram Ahovi, Craig Tsuji, Edward P. Donlon
  • Patent number: D1077200
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: May 27, 2025
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Timothy B. Hulford, Robert B. Hubler, Elie Eyram Ahovi, Craig Tsuji, Edward P. Donlon