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: 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
  • Patent number: 9402534
    Abstract: An optical scanning probe comprises a handle to receive a light beam from a light guide; a cannula, extending from a distal end of the handle; a fiber, positioned partially inside the handle and partially inside the cannula, to guide the received light beam toward a distal end of the cannula; a rotating scanner, rotatably positioned at least partially inside the cannula and configured to house a proximal portion of the fiber; and a deflecting scanner, movably coupled to a distal end of the rotating scanner, configured to deflect a distal portion of the fiber, wherein the distal portion of the fiber is configured to emit and scan the guided light in a target region.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: August 2, 2016
    Assignee: NOVARTIS AG
    Inventors: Lingfeng Yu, Xiaoyu Yu, Jack Auld
  • Patent number: 9392936
    Abstract: A system and method for using optical coherence tomography (OCT) to image both the vitreous and the retina in the eye. The image of both tissues may be created sequentially, simultaneously, or near-simultaneously from at least one OCT image.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: July 19, 2016
    Assignee: Novartis AG
    Inventors: Lingfeng Yu, Hugang Ren
  • Publication number: 20160183779
    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: Application
    Filed: December 29, 2014
    Publication date: June 30, 2016
    Inventors: Hugang Ren, Lingfeng Yu
  • Publication number: 20160183782
    Abstract: An ophthalmic visualization system can include an ocular lens positioned between a macular contact lens coupled to a procedure eye and a surgical microscope. The ocular lens can guide a light beam through the macular contact lens and into the procedure eye, and in combination with the macular contact lens generate an intermediate image of the procedure eye at an image plane between the procedure eye and the surgical microscope. The system can include a reduction lens positioned in the optical path between the surgical microscope and the ocular lens. The reduction lens and/or ocular lens can align a focus plane of the surgical microscope with the image plane. A method of visualizing a procedure eye in an ophthalmic procedure can include positioning an ocular lens and a reduction lens between a macular contact lens and a surgical microscope; and scanning the procedure eye with a light beam.
    Type: Application
    Filed: December 29, 2014
    Publication date: June 30, 2016
    Inventors: Lingfeng Yu, Vadim Shofman
  • Patent number: 9339178
    Abstract: Devices, systems, and methods that utilize a technique of changing a position of the set of optical fibers of the fiber bundle in cooperation with the scanning of the imaging light across a proximal surface of the fiber bundle to improve the resolution of the scanned image. In particular, a bundle actuator can be provided to change a position of the set of optical fibers of the fiber bundle in cooperation with a scanning of the imaging light across the proximal surface of the fiber bundle to cover the areas of the gaps between the optical fibers and to increase a resolution of the scanned image.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: May 17, 2016
    Assignee: Novartis AG
    Inventors: Lingfeng Yu, Kambiz Parto
  • Patent number: 9323049
    Abstract: In certain embodiments, a scanning system comprises optical elements and a movement system. The optical elements comprise an optical fiber and a focusing element. The optical fiber transmits a light ray and has a fiber axis that extends to an imaginary fiber axis. The focusing element refracts the light ray and has a focusing element optical axis that is substantially aligned with the imaginary fiber axis. The movement system rotates the focusing element about the focusing element optical axis to scan the light ray. In other embodiments, a scanning system comprises optical elements and a movement system. The optical elements comprise an optical fiber, a focusing element, and a prism. The prism has a prism optical axis and receives the light ray from the focusing element. The movement system rotates the prism about the prism optical axis to scan the light ray.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: April 26, 2016
    Assignee: Novartis AG
    Inventors: Tammo Hereen, Mauricio Jochinsen, Dean Y. Lin, Michael J. Papac, Kambiz Parto, Edouard G. Schmidtlin, Barry L. Wheatley, Lingfeng Yu
  • Publication number: 20160022484
    Abstract: An OCT-augmented surgical instrument able to correct for undesired movement, as well as a system for use with such a surgical instrument and a method of correcting for undesired movement during surgery using OCT.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 28, 2016
    Inventors: Lingfeng Yu, Hugang Ren
  • Publication number: 20160008169
    Abstract: A surgical imaging system can include at least one light source, configured to generate a light beam; a beam guidance system, configured to guide the light beam from the light source; a beam scanner, configured to receive the light from the beam guidance system, and to generate a scanned light beam; a beam coupler, configured to redirect the scanned light beam; and a wide field of view (WFOV) lens, configured to guide the redirected scanned light beam into a target region of a procedure eye; wherein the beam coupler is movably positioned relative to the procedure eye such that the beam coupler is selectively movable to change at least one of an incidence angle of the redirected scanned light beam into the procedure eye and the target region of the procedure eye.
    Type: Application
    Filed: July 14, 2014
    Publication date: January 14, 2016
    Inventor: Lingfeng Yu
  • Publication number: 20150366450
    Abstract: A method of automatically detecting a retinal feature using an ophthalmic imaging system can include: acquiring an optical coherence tomography (OCT) image of a retina; segmenting the OCT image; generating a metric based on the segmented OCT image; detecting the retinal feature based on the metric; and providing an indication of the detected retinal feature to a user. An ophthalmic imaging system can include: an OCT system configured to acquire an image of a retina; a computing device coupled to the OCT system and configured to segment the image, generate a metric based on the segmented image, and detect a retinal feature based on the metric; and an audio/visual/tactile device in communication with the computing device and configured to provide at least one of an audio, visual, and tactile indication of the detected retinal feature to a user.
    Type: Application
    Filed: June 19, 2014
    Publication date: December 24, 2015
    Inventors: Hugang Ren, Lingfeng Yu