Patents by Inventor James T. Handa

James T. Handa 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: 10406026
    Abstract: A system for operating within an interior region of the eye, or other organ, includes a delivery channel having a proximal portion located exterior to the eye and a distal portion positionable within the interior region of the eye, wherein the distal portion of the delivery channel defines an outer diameter that is smaller than or equal to about 18 gauge, and a micro-robot extendable from the distal portion of the delivery channel, wherein the micro-robot is remotely operable to change shape within the interior region of the eye.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: September 10, 2019
    Assignee: The Johns Hopkins University
    Inventors: Nabil Simaan, Russell H. Taylor, James T. Handa
  • Patent number: 10363164
    Abstract: A force-sensing tool includes a tool shaft that has a proximal end and a distal end, a flexure section attached at a first end to the distal end of the tool shaft, a tool tip operatively connected to the flexure section such that axial forces applied to the tool tip are coupled primarily to a first portion of the flexure section and transverse forces applied to the tool tip are coupled primarily to a second portion of the flexure section, an axial force sensor coupled to the first portion of the flexure section, and a transverse force sensor coupled to the second portion of the flexure section. The axial force sensor responds to axial forces applied to the tool tip substantially independently of the transverse forces applied to the tool tip under a designed operating range of forces, and the transverse force sensor responds to transverse forces applied to the tool tip substantially independently of the axial forces applied to the tool tip under the designed operating range of forces.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: July 30, 2019
    Assignee: The Johns Hopkins University
    Inventors: Xingchi He, Iulian Iordachita, Russell H. Taylor, James T. Handa, Peter L. Gehlbach
  • Patent number: 10188281
    Abstract: An observation system for viewing light-sensitive tissue includes an illumination system configured to illuminate the light-sensitive tissue, an imaging system configured to image at least a portion of the light-sensitive tissue upon being illuminated by the illumination system, and an image display system in communication with the imaging system to display an image of the portion of the light-sensitive tissue. The illumination system is configured to illuminate the light-sensitive tissue with a reduced amount of light within a preselected wavelength range compared to multispectral illumination light, and the image of the portion of the light-sensitive tissue is compensated for the reduced amount of light within the preselected frequency range to approximate an image of the light-sensitive tissue under the multispectral illumination.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: January 29, 2019
    Assignee: The Johns Hopkins University
    Inventors: Russell H. Taylor, Seth D. Billings, Peter L. Gehlbach, Gregory D. Hager, James T. Handa, Jin U. Kang, Balazs P. Vagvolgyi, Raphael Sznitman, Zachary Pezzementi
  • Patent number: 10045882
    Abstract: A surgical instrument has a surgical tool that has a proximal end and a distal end, and an optical sensor that has at least a portion attached to the surgical tool. The surgical tool has a portion that is suitable to provide a reference portion of the surgical tool, and the optical sensor has an end fixed relative to the reference portion of the surgical tool such that the reference portion of the surgical tool can be detected along with tissue that is proximate or in contact with the distal end of the surgical tool while in use.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: August 14, 2018
    Assignee: The Johns Hopkins University
    Inventors: Marcin A. Balicki, Russell H. Taylor, Jin U. Kang, Peter L. Gehlbach, James T. Handa, Jaeho Han
  • Patent number: 9814392
    Abstract: A visual tracking and annotation system for surgical intervention includes an image acquisition and display system arranged to obtain image streams of a surgical region of interest and of a surgical instrument proximate the surgical region of interest and to display acquired images to a user; a tracking system configured to track the surgical instrument relative to the surgical region of interest; a data storage system in communication with the image acquisition and display system and the tracking system; and a data processing system in communication with the data storage system, the image acquisition and display system and the tracking system. The data processing system is configured to annotate images displayed to the user in response to an input signal from the user.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: November 14, 2017
    Assignee: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Marcin A. Balicki, Russell H. Taylor, Gregory D. Hager, Peter L. Gehlbach, James T. Handa, Rajesh Kumar
  • Publication number: 20170156928
    Abstract: A force-sensing tool includes a tool shaft that has a proximal end and a distal end, a flexure section attached at a first end to the distal end of the tool shaft, a tool tip operatively connected to the flexure section such that axial forces applied to the tool tip are coupled primarily to a first portion of the flexure section and transverse forces applied to the tool tip are coupled primarily to a second portion of the flexure section, an axial force sensor coupled to the first portion of the flexure section, and a transverse force sensor coupled to the second portion of the flexure section. The axial force sensor responds to axial forces applied to the tool tip substantially independently of the transverse forces applied to the tool tip under a designed operating range of forces, and the transverse force sensor responds to transverse forces applied to the tool tip substantially independently of the axial forces applied to the tool tip under the designed operating range of forces.
    Type: Application
    Filed: August 11, 2016
    Publication date: June 8, 2017
    Inventors: Xingchi He, Iulian Iordachita, Russell H. Taylor, James T. Handa, Peter L. Gehlbach
  • Publication number: 20160262605
    Abstract: An observation system for viewing light-sensitive tissue includes an illumination system configured to illuminate the light-sensitive tissue, an imaging system configured to image at least a portion of the light-sensitive tissue upon being illuminated by the illumination system, and an image display system in communication with the imaging system to display an image of the portion of the light-sensitive tissue.
    Type: Application
    Filed: March 30, 2016
    Publication date: September 15, 2016
    Applicant: The Johns Hopkins University
    Inventors: Russell H. Taylor, Seth D. Billings, Peter L. Gehlbach, Gregory D. Hager, James T. Handa, Jin U. Kang, Balazs P. Vagvolgyi, Raphael Sznitman, Zachary Pezzementi
  • Patent number: 9320428
    Abstract: An observation system for viewing light-sensitive tissue includes an illumination system configured to illuminate the light-sensitive tissue, an imaging system configured to image at least a portion of the light-sensitive tissue upon being illuminated by the illumination system, and an image display system in communication with the imaging system to display an image of the portion of the light-sensitive tissue. The illumination system is configured to illuminate the light-sensitive tissue with a reduced amount of light within a preselected wavelength range compared to multispectral illumination light, and the image of the portion of the light-sensitive tissue is compensated for the reduced amount of light within the preselected frequency range to approximate an image of the light-sensitive tissue under the multispectral illumination.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: April 26, 2016
    Assignee: The Johns Hopkins University
    Inventors: Russell H. Taylor, Seth D. Billings, Peter L. Gehlbach, Gregory D. Hager, James T. Handa, Jin Ung Kang, Balazs Vagvolgyi, Raphael Sznitman, Zachary Pezzementi
  • Patent number: 9116262
    Abstract: An illumination system includes a light source, an optical waveguide that has a proximal end and a distal end such that the proximal end is arranged to receive light from the light source and the distal end is suitable to illuminate an object of interest; and an optical coupler constructed and arranged to couple light from the light source into the optical waveguide. The optical coupler includes a reflective surface that reflects at least some light diverging from the light source to be coupled into the optical waveguide.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: August 25, 2015
    Assignee: The Johns Hopkins University
    Inventors: Jin U. Kang, Seth D. Billings, Peter L. Gehlbach, James T. Handa, Yong Huang, Russell H. Taylor, Yi Yang
  • Publication number: 20130033887
    Abstract: An illumination system includes a light source, an optical waveguide that has a proximal end and a distal end such that the proximal end is arranged to receive light from the light source and the distal end is suitable to illuminate an object of interest; and an optical coupler constructed and arranged to couple light from the light source into the optical waveguide. The optical coupler includes a reflective surface that reflects at least some light diverging from the light source to be coupled into the optical waveguide.
    Type: Application
    Filed: April 20, 2011
    Publication date: February 7, 2013
    Applicant: The Johns Hopkins University
    Inventors: Jin U. Kang, Seth D. Billings, Peter L. Gehlbach, James T. Handa, Yong Huang, Russell H. Taylor, Yi Yang
  • Publication number: 20120130258
    Abstract: An observation system for viewing light-sensitive tissue includes an illumination system configured to illuminate the light-sensitive tissue, an imaging system configured to image at least a portion of the light-sensitive tissue upon being illuminated by the illumination system, and an image display system in communication with the imaging system to display an image of the portion of the light-sensitive tissue.
    Type: Application
    Filed: August 5, 2010
    Publication date: May 24, 2012
    Applicant: The Johns Hopkins University
    Inventors: Russell H. Taylor, Seth D. Billings, Peter L. Gehlbach, Gregory D. Hager, James T. Handa, Jin Ung Kang, Balazs Vagvolgyi, Raphael Sznitman, Zachary Pezzementi
  • Publication number: 20110125165
    Abstract: A system for operating within an interior region of the eye, or other organ, includes a delivery channel having a proximal portion located exterior to the eye and a distal portion positionable within the interior region of the eye, wherein the distal portion of the delivery channel defines an outer diameter that is smaller than or equal to about 18 gauge, and a micro-robot extendable from the distal portion of the delivery channel, wherein the micro-robot is remotely operable to change shape within the interior region of the eye.
    Type: Application
    Filed: May 18, 2009
    Publication date: May 26, 2011
    Applicant: The Johns Hopkins University
    Inventors: Nabil Simaan, Russell H. Taylor, James T. Handa
  • Publication number: 20110106102
    Abstract: A surgical instrument has a surgical tool that has a proximal end and a distal end, and an optical sensor that has at least a portion attached to the surgical tool. The surgical tool has a portion that is suitable to provide a reference portion of the surgical tool, and the optical sensor has an end fixed relative to the reference portion of the surgical tool such that the reference portion of the surgical tool can be detected along with tissue that is proximate or in contact with the distal end of the surgical tool while in use.
    Type: Application
    Filed: November 1, 2010
    Publication date: May 5, 2011
    Applicant: The Johns Hopkins University
    Inventors: Marcin A. Balicki, Russell H. Taylor, Jin U. Kang, Peter L. Gehlbach, James T. Handa, Jaeho Han