Patents by Inventor Thomas J. Calef

Thomas J. Calef 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: 11963676
    Abstract: A robotic suture knot tying system includes a first robotic arm, a second robotic arm, a suturing device including a suturing end effector operatively coupled to the first robotic arm, and a suture handling device operatively coupled to the second robotic arm. The system also includes a control system operatively coupled to the first robotic arm, the second robotic arm, the suturing device, and the suture handling device and configured to control operation thereof to cooperatively perform a suture knot tying procedure on a patient.
    Type: Grant
    Filed: April 2, 2021
    Date of Patent: April 23, 2024
    Assignee: Activ Surgical, Inc.
    Inventors: Liam O'Shea, Thomas J. Calef, Dana Zitnick
  • Patent number: 11857153
    Abstract: Systems and methods for multi-modal sensing of three-dimensional position information of the surface of an object are disclosed. In particular, multiple visualization modalities are each used to collect distinctive positional information of a surface of an object. Each of the computed positional information is combined using weighting factors to compute a final, weighted three-dimensional position. In various embodiments, a first depth may be recorded using fiducial markers, a second depth may be recorded using a structured light pattern, and a third depth may be recorded using a light-field camera. Weighting factors may be applied to each of the recorded depths and a final, weighted depth may be computed.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: January 2, 2024
    Assignee: Activ Surgical, Inc.
    Inventors: Thomas J. Calef, Tina P. Chen, Emanuel Demaio, Tony Chen, Vasiliy Evgenyevich Buharin, Michael G. Ruehlman
  • Publication number: 20220117689
    Abstract: Systems and methods for multi-modal sensing of three-dimensional position information of the surface of an object are disclosed. In particular, multiple visualization modalities are each used to collect distinctive positional information of a surface of an object. Each of the computed positional information is combined using weighting factors to compute a final, weighted three-dimensional position. In various embodiments, a first depth may be recorded using fiducial markers, a second depth may be recorded using a structured light pattern, and a third depth may be recorded using a light-field camera. Weighting factors may be applied to each of the recorded depths and a final, weighted depth may be computed.
    Type: Application
    Filed: October 27, 2021
    Publication date: April 21, 2022
    Inventors: Thomas J. Calef, Tina P. Chen, Emanuel Demaio, Tony Chen, Vasiliy Evgenyevich Buharin, Michael G. Ruehlman
  • Publication number: 20210361281
    Abstract: A robotic suture knot tying system includes a first robotic arm, a second robotic arm, a suturing device including a suturing end effector operatively coupled to the first robotic arm, and a suture handling device operatively coupled to the second robotic arm. The system also includes a control system operatively coupled to the first robotic arm, the second robotic arm, the suturing device, and the suture handling device and configured to control operation thereof to cooperatively perform a suture knot tying procedure on a patient.
    Type: Application
    Filed: April 2, 2021
    Publication date: November 25, 2021
    Inventors: Liam O'Shea, Thomas J. Calef, Dana Zitnick
  • Patent number: 11179218
    Abstract: Systems and methods for multi-modal sensing of three-dimensional position information of the surface of an object are disclosed. In particular, multiple visualization modalities are each used to collect distinctive positional information of a surface of an object. Each of the computed positional information is combined using weighting factors to compute a final, weighted three-dimensional position. In various embodiments, a first depth may be recorded using fiducial markers, a second depth may be recorded using a structured light pattern, and a third depth may be recorded using a light-field camera. Weighting factors may be applied to each of the recorded depths and a final, weighted depth may be computed.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: November 23, 2021
    Assignee: ACTIV SURGICAL, INC.
    Inventors: Thomas J. Calef, Tina P. Chen, Emanuel Demaio, Tony Chen, Vasiliy Evgenyevich Buharin, Michael G. Ruehlman
  • Publication number: 20210259680
    Abstract: A surgical grasper with an integrated suture pulley engages a suture during a suturing process. The grasper includes a jaw member pivotally connected to another jaw member, each having a suture engagement surface facing the suture engagement surface of the other. One jaw member includes a suture pivot post extending from its suture engagement surface. The other jaw member has an opening in its suture engagement surface sized and arranged to receive the pivot post. The grasper can be operated to position the jaw members in a suture grasping mode, in which the pivot post is received in the opening and the suture engagement surfaces securely engage the suture to inhibit movement of the suture. The jaw members can also be positioned in a pulley mode, in which the grasper slidably supports the suture and the pivot post acts as a pivot point and bearing surface for the suture.
    Type: Application
    Filed: March 3, 2021
    Publication date: August 26, 2021
    Inventors: Liam O'Shea, Thomas J. Calef, Dana Zitnick
  • Publication number: 20210259678
    Abstract: A laparoscopic device with suture cutter includes a tubular housing having first, second, and third channels. Each channel extends longitudinally along the housing. A first suture grasping instrument in the first channel has an end effector that can be actuated to extend outwardly from the distal end of the housing to grasp a first portion of a suture. A second suture grasping instrument in the second channel has an end effector that can be actuated to extend outwardly from the distal end to grasp a second portion of a suture. A cutting blade is recessed in the distal end at a location between the first and second channels. The first and second instruments can be retracted into the distal end of the housing while grasping the suture and to engage the suture with the blade to sever the suture. The third channel can house a laparoscope.
    Type: Application
    Filed: March 3, 2021
    Publication date: August 26, 2021
    Inventors: Liam O'Shea, Thomas J. Calef, Dana Zitnick
  • Publication number: 20210236226
    Abstract: Systems and methods for multi-modal sensing of three-dimensional position information of the surface of an object are disclosed. In particular, multiple visualization modalities are each used to collect distinctive positional information of a surface of an object. Each of the computed positional information is combined using weighting factors to compute a final, weighted three-dimensional position. In various embodiments, a first depth may be recorded using fiducial markers, a second depth may be recorded using a structured light pattern, and a third depth may be recorded using a light-field camera. Weighting factors may be applied to each of the recorded depths and a final, weighted depth may be computed.
    Type: Application
    Filed: January 15, 2021
    Publication date: August 5, 2021
    Inventors: Thomas J. Calef, Tina P. Chen, Emanuel Demaio, Tony Chen, Vasiliy Evgenyevich Buharin, Michael G. Ruehlman
  • Publication number: 20200222117
    Abstract: A robotic introducer system comprises a first assembly comprising a cable control assembly configured for use in a plurality of medical procedures, a second assembly comprising a distal link extension assembly configured for fewer uses than the first assembly, and a third assembly comprising an articulating probe assembly, coupled between the first and second assemblies and configured for fewer uses than the second assembly.
    Type: Application
    Filed: September 16, 2019
    Publication date: July 16, 2020
    Inventors: Brett Zubiate, Thomas J. Calef, Gabriel A. Johnston, Ian Joseph Darisse, Michael S. Castro, Arnold Oyola, Kevin Gilmartin, Joseph A. Stand, III, R. Maxwell Flaherty, J. Christopher Flaherty
  • Publication number: 20150342690
    Abstract: A robotic introducer system comprises a first assembly comprising a cable control assembly configured for use in a plurality of medical procedures, a second assembly comprising a distal link extension assembly configured for fewer uses than the first assembly, and a third assembly comprising an articulating probe assembly, coupled between the first and second assemblies and configured for fewer uses than the second assembly.
    Type: Application
    Filed: January 9, 2014
    Publication date: December 3, 2015
    Inventors: Brett Zubiate, Thomas J. Calef, Gabriel A. Johnston, Ian Joseph Darisse, Michael S. Castro, Arnold Oyola, Kevin Gilmartin, Joseph A. Stand, III, R. Maxwell Flaherty, J. Christopher Flaherty