Patents by Inventor Lingfeng Yu

Lingfeng Yu 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: 20170156588
    Abstract: An ophthalmic visualization system can include a computing device in communication with an OCT system configured to scan a surgical field to generate an OCT image. The computing device can be configured to determine locations within the surgical field corresponding to locations within the OCT image. The ophthalmic visualization system can also include an indicator mechanism in communication with the computing device and a surgical microscope configured to image the surgical field. The indicator mechanism can be configured to cause a location indicator to be positioned within a field of view of the surgical microscope. The location indicator can graphically represent the locations within the surgical field corresponding to the locations within the OCT image.
    Type: Application
    Filed: December 2, 2015
    Publication date: June 8, 2017
    Inventors: Hugang Ren, Lingfeng Yu
  • Patent number: 9645379
    Abstract: An ophthalmic visualization system can include an imaging device configured to acquire images of a surgical field; a computing device configured to determine an area of interest based on the images; and a display device in communication with the computing device and a surgical microscope, wherein the display device is configured to provide a graphical overlay onto at least a portion of a field of view of the surgical microscope, and wherein the graphical overlay includes a magnified image of the area of interest. A method of visualizing an ophthalmic procedure can include receiving images of a surgical field acquired by an imaging device; identifying an area of interest; generating a graphical overlay including a magnified image of the area of the interest; and outputting the graphical overlay to a display device such that the graphical overlay is positioned over a field of view of a surgical microscope.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: May 9, 2017
    Assignee: Novartis AG
    Inventors: Hugang Ren, Lingfeng Yu
  • Patent number: 9639917
    Abstract: According to some examples, a method for Optical Coherence Tomography (OCT) image modification includes receiving an OCT image of a region of interest of patient tissue from an OCT imaging system configured to direct an OCT beam at the region of interest and determining that an OCT transparent instrument is within the OCT image. The method further includes detecting an artifact in the OCT image, the artifact resulting from the OCT transparent instrument being within a path of the OCT beam. In response to detecting the artifact, the method further includes creating an image modification plan to remove the artifact from the OCT image. The method further includes executing the image modification plan to remove the artifact from the OCT image.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: May 2, 2017
    Assignee: Novartis AG
    Inventors: Lingfeng Yu, Hugang Ren, Michael Papac
  • Publication number: 20170100285
    Abstract: A method for applying a photocoagulation procedure includes capturing a baseline image of a first location within a surgical site. The method further includes applying a photocoagulation treatment at the first location within the surgical site, the photocoagulation treatment using a laser tool having a set of operating parameters. The method further includes capturing an operation image of the first location within the surgical site at a point in time after the photocoagulation treatment has started. The method further includes, with a control system, performing a comparison of the operation image and the baseline image to determine whether a treatment objective has been achieved. The method further includes, with the control system, in response to determining that the treatment objective has not been achieved, adjusting the set of operating parameters to create a set of adjusted operating parameters and continuing the photocoagulation treatment with the set of adjusted operating parameters.
    Type: Application
    Filed: October 12, 2015
    Publication date: April 13, 2017
    Inventors: Paul R. Hallen, Michael J. Papac, Hugang Ren, Lingfeng Yu
  • Publication number: 20170079521
    Abstract: Optical coherence tomography (OCT) scan data is used to automatically detect and characterize vitreoretinal membranes in a spatially precise manner to generate a mask image. The mask image may characterize various aspects of a vitreoretinal membrane. The mask image is then overlaid with an optical image of the retina to enable visualization of the vitreoretinal membrane.
    Type: Application
    Filed: September 18, 2015
    Publication date: March 23, 2017
    Inventors: Hugang Ren, Lingfeng Yu
  • Publication number: 20170079522
    Abstract: A Slit-lamp-or-Microscope-Integrated-OCT-Refractometer system includes an eye-visualization system, configured to provide a visual image of an imaged region in an eye; an Optical Coherence Tomographic (OCT) imaging system, configured to generate an OCT image of the imaged region; a refractometer, configured to generate a refractive mapping of the imaged region; and an analyzer, configured to determine refractive characteristics of the eye based on the OCT image and the refractive mapping, wherein the refractometer and the OCT imaging system are integrated into the eye visualization system.
    Type: Application
    Filed: December 6, 2016
    Publication date: March 23, 2017
    Inventors: ALEXANDER N. ARTSYUKHOVICH, Z. ARAS ASLAN, LINGFENG YU, MIKHAIL BOUKHNY
  • Patent number: 9597009
    Abstract: An ophthalmic surgical tool has a marker positioned at a distal portion of the ophthalmic surgical tool. The distal portion of the ophthalmic surgical tool is inserted into an eye along with the marker to perform surgeries in the eye. An imaging device captures images of the fundus of the eye including the distal portion of the ophthalmic surgical tool. An image processor processes the captured images to identify and extract the marker from the captured images. The marker has a high-contrast feature in a visible light or infrared light range or other spectral ranges. Thus, the image processor may identify and extract the marker from the captured images. Indicators may be generated based on the marker and be overlaid with the captured or processed images of the fundus and displayed to a user to indicate surgical information to the user.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: March 21, 2017
    Assignee: Novartis AG
    Inventors: Hugang Ren, Lingfeng Yu
  • Publication number: 20170055828
    Abstract: An epiretinal membrane (ERM) visualization system includes an OCT system operable to generate an OCT image of a region of a patient's eye, the region of the patient's eye including an ERM. The ERM visualization system further includes an image processing unit operable to process the OCT image to identify the ERM by differentiating the ERM from other structures within the region of the patient's eye and generate an ERM map depicting one or more characteristics (including at least a location of a portion of the ERM within the region of the patient's eye) of the identified ERM. The ERM visualization system further includes a display operable to display the ERM map.
    Type: Application
    Filed: August 27, 2015
    Publication date: March 2, 2017
    Inventors: MICHAEL J. PAPAC, HUGANG REN, LINGFENG YU
  • Patent number: 9579017
    Abstract: An OCT tracking system includes an imaging unit operable to generate a fundus image of a patient's eye and a tracking system operable to process the fundus image to determine a location of a surgical instrument inserted into the patient's eye. The OCT tracking system further includes an OCT system including an OCT light source operable to generate an OCT imaging beam and a beam scanner. Based at least in part on the determined location of the surgical instrument, the beam scanner directs the OCT imaging beam to a particular region within the patient's eye, the particular region within the patient's eye including the determined location of the surgical instrument inserted into the patient's eye.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: February 28, 2017
    Assignee: Novartis AG
    Inventors: Tammo Heeren, Lingfeng Yu
  • Publication number: 20170049322
    Abstract: An ophthalmic surgical microscope includes a beam coupler positioned along an optical path of the surgical microscope between a first eyepiece and magnifying/focusing optics, the beam coupler operable to direct the OCT imaging beam along a first portion of the optical path of the surgical microscope between the beam coupler and a patient's eye (an OCT image being generated based on a reflected portion of the OCT imaging beam). The surgical microscope additionally includes a real-time data projection unit operable to project the OCT image generated by the OCT system and a beam splitter positioned along the optical path of the surgical microscope between a second eyepiece and the magnifying/focusing optics. The beam splitter is operable to direct the projected OCT image along a second portion of the optical path of the surgical microscope between the beam splitter and the second eyepiece such that the projected OCT image is viewable through the second eyepiece.
    Type: Application
    Filed: August 17, 2015
    Publication date: February 23, 2017
    Inventors: TAMMO HEEREN, HUGANG REN, VADIM SHOFMAN, LINGFENG YU
  • Publication number: 20170045728
    Abstract: An optical system configured to display a composite image includes a projection system that overlays a projected image onto a projected image plane. The optical system further includes at least two eyepieces through which the composite image is viewable to a user and a lens system having a subject image plane viewable through the at least two eyepieces. The subject image plane includes a subject image. The projection system causes the projected image to appear on a projected image plane, viewable through the at least two eyepieces, to include the projected image and the subject image in the composite image. The projection system further includes an adjustable optical component that is adjustable to position the projected image plane relative to the subject image plane.
    Type: Application
    Filed: August 13, 2015
    Publication date: February 16, 2017
    Inventors: Mauricio Jochinsen, Vadim Shofman, Lingfeng Yu
  • Publication number: 20170035287
    Abstract: A method for display optimization includes receiving an image of a surgical site from an imaging system. The method further includes determining a region of interest at a first location within the image. The method further includes generating a surgical data overlay at a first position, the first position associated with the first location of the region of interest. The method further includes detecting that the region of interest has moved to a second location within the image. The method further includes, in response to detecting that the region of interest has moved to the second location, moving the surgical data overlay to a second position, the second position associated with the second location. The method further includes displaying the image and surgical data overlay to a user.
    Type: Application
    Filed: August 4, 2015
    Publication date: February 9, 2017
    Inventors: Hugang Ren, Lingfeng Yu
  • Patent number: 9560959
    Abstract: Control of scanning images during ophthalmic surgery may be performed with a scanning controller that interfaces to an optical scanner used with a surgical microscope. A scan control device may receive user input, including hands-free user input, for controlling an overlay image of scanning data that is overlaid on optical image data viewed using the surgical microscope. A selected location for optical scanning may also be displayed and controlled using the scanning controller.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: February 7, 2017
    Assignee: Novartis AG
    Inventors: Mark Hopkins, Robert Sanchez, Ryan Takakawa, Lingfeng Yu, Hugang Ren
  • Patent number: 9554702
    Abstract: A surgical imaging system can comprise a light source, configured to generate an imaging light beam; a beam guidance system, configured to guide the imaging light beam from the light source; a beam scanner, configured to receive the imaging light from the beam guidance system, and to generate a scanned imaging light beam; a beam coupler, configured to redirect the scanned imaging light beam; and a wide field of view (WFOV) lens, configured to guide the redirected scanned imaging light beam into a target region of a procedure eye.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: January 31, 2017
    Assignee: Novartis AG
    Inventors: Michael Papac, Lingfeng Yu, Tammo Heeren
  • Patent number: 9538911
    Abstract: A Slit-lamp-or-Microscope-Integrated-OCT-Refractometer system includes an eye-visualization system, configured to provide a visual image of an imaged region in an eye; an Optical Coherence Tomographic (OCT) imaging system, configured to generate an OCT image of the imaged region; a refractometer, configured to generate a refractive mapping of the imaged region; and an analyzer, configured to determine refractive characteristics of the eye based on the OCT image and the refractive mapping, wherein the refractometer and the OCT imaging system are integrated into the eye visualization system.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: January 10, 2017
    Assignee: NOVARTIS AG
    Inventors: Alexander N. Artsyukhovich, Z. Aras Aslan, Lingfeng Yu, Mikhail Boukhny
  • Publication number: 20160360959
    Abstract: An OCT tracking system includes an imaging unit operable to generate a fundus image of a patient's eye and a tracking system operable to process the fundus image to determine a location of a surgical instrument inserted into the patient's eye. The OCT tracking system further includes an OCT system including an OCT light source operable to generate an OCT imaging beam and a beam scanner. Based at least in part on the determined location of the surgical instrument, the beam scanner directs the OCT imaging beam to a particular region within the patient's eye, the particular region within the patient's eye including the determined location of the surgical instrument inserted into the patient's eye.
    Type: Application
    Filed: June 15, 2015
    Publication date: December 15, 2016
    Inventors: TAMMO HEEREN, LINGFENG YU
  • Publication number: 20160343112
    Abstract: According to some examples, a method for Optical Coherence Tomography (OCT) image modification includes receiving an OCT image of a region of interest of patient tissue from an OCT imaging system configured to direct an OCT beam at the region of interest and determining that an OCT transparent instrument is within the OCT image. The method further includes detecting an artifact in the OCT image, the artifact resulting from the OCT transparent instrument being within a path of the OCT beam. In response to detecting the artifact, the method further includes creating an image modification plan to remove the artifact from the OCT image. The method further includes executing the image modification plan to remove the artifact from the OCT image.
    Type: Application
    Filed: October 7, 2015
    Publication date: November 24, 2016
    Inventors: LINGFENG YU, HUGANG REN, MICHAEL PAPAC
  • Publication number: 20160331584
    Abstract: A surgical system uses a surgical tool as a control input. A tracking unit tracks a motion of the surgical tool, and a processing unit for processes the motion of the surgical tool to obtain a temporal spatial information of the surgical tool. The control unit further comprises a control input unit with a number of control commands. The control input unit associates the temporal spatial information of the surgical tool with a corresponding control command.
    Type: Application
    Filed: May 14, 2015
    Publication date: November 17, 2016
    Inventors: Hugang Ren, Lingfeng Yu
  • Publication number: 20160317032
    Abstract: Systems, apparatuses, and methods of and for an ophthalmic visualization system are disclosed. An example ophthalmic visualization system may include a first lens positioned relative to a surgical microscope in a manner facilitating viewing of a central region of a retina through the surgical microscope during a surgical procedure. The first lens may be positionable in an optical path between an eye and the surgical microscope during the surgical procedure. The example ophthalmic visualization system may also include a second lens selectively positionable relative to the surgical microscope and the first lens in a manner facilitating viewing of a peripheral region of the retina of the eye during the surgical procedure. The second lens may be selectively positionable in the optical path such that the peripheral region is selectively viewable without changing the position of the first lens during the surgical procedure.
    Type: Application
    Filed: February 12, 2016
    Publication date: November 3, 2016
    Inventors: RONALD T. SMITH, LINGFENG YU, MICHAEL PAPAC, ARGELIO MICHAEL OLIVERA, STEVEN T. CHARLES
  • Publication number: 20160278983
    Abstract: Apparatuses, systems, and methods for treating tissue abnormalities are disclosed. The tissue may be visualized for determining a presence of one or more abnormalities contained therein. Imaging data obtained by visualization may be used to determine the presence of one or more abnormalities. Each of the detected abnormalities may be identified and a treatment plan developed for treating the abnormalities. Treatment may be delivered to the abnormalities according to the treatment plan.
    Type: Application
    Filed: February 23, 2016
    Publication date: September 29, 2016
    Inventors: Michael John Claus, Robert Sanchez, Tammo Heeren, Argelio Michael Olivera, Michael Papac, Lingfeng Yu, Hugang Ren