Patents Assigned to Doheny Eye Institute
  • Patent number: 12193742
    Abstract: In accordance with one aspect of the present invention, an optical coherence tomography-based ophthalmic testing center system includes an optical coherence tomography instrument comprising an eyepiece for receiving at least one eye of a user or subject; a light source that outputs light that is directed through the eyepiece into the user's or subject's eye, an interferometer configured to produce optical interference using light reflected from the user's/subject's eye, an optical detector disposed so as to detect said optical interference; and a processing unit coupled to the detector. The ophthalmic testing center system can be configured to perform a multitude of self-administered functional and/or structural ophthalmic tests and output the test data.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: January 14, 2025
    Assignee: Doheny Eye Institute
    Inventors: Alexander C. Walsh, Paul G. Updike, Srinivas R. Sadda
  • Patent number: 11839430
    Abstract: In accordance with one aspect of the present invention, an optical coherence tomography-based ophthalmic testing center system includes an optical coherence tomography instrument comprising an eyepiece for receiving at least one eye of a user or subject; a light source that outputs light that is directed through the eyepiece into the user's or subject's eye, an interferometer configured to produce optical interference using light reflected from the user's/subject's eye, an optical detector disposed so as to detect said optical interference; and a processing unit coupled to the detector. The ophthalmic testing center system can be configured to perform a multitude of self-administered functional and/or structural ophthalmic tests and output the test data.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: December 12, 2023
    Assignee: Doheny Eye Institute
    Inventors: Alexander C. Walsh, Paul G. Updike, Srinivas R. Sadda
  • Publication number: 20230045859
    Abstract: Deep learning methods and systems for detecting biomarkers within optical coherence tomography volumes using such deep learning methods and systems are provided. Embodiments predict the presence or absence of clinically useful biomarkers in OCT images using deep neural networks. The lack of available training data for canonical deep learning approaches is overcome in embodiments by leveraging a large external dataset consisting of foveal scans using transfer learning. Embodiments represent the three-dimensional OCT volume by “tiling” each slice into a single two dimensional image, and adding an additional component to encourage the network to consider local spatial structure. Methods and systems, according to embodiments are able to identify the presence or absence of AMD-related biomarkers on par with clinicians. Beyond identifying biomarkers, additional models could be trained, according to embodiments, to predict the progression of these biomarkers over time.
    Type: Application
    Filed: January 25, 2021
    Publication date: February 16, 2023
    Applicants: The Regents of the University of California, Doheny Eye Institute
    Inventors: Eran Halperin, Nadav Rakocz, Jeffrey Chiang, Muneeswar Gupta, Srinivas Sadda
  • Patent number: 11510567
    Abstract: In accordance with one aspect of the present invention, an optical coherence tomography-based ophthalmic testing center system includes an optical coherence tomography instrument comprising an eyepiece for receiving at least one eye of a user or subject; a light source that outputs light that is directed through the eyepiece into the user's or subject's eye, an interferometer configured to produce optical interference using light reflected from the user's/subject's eye, an optical detector disposed so as to detect said optical interference; and a processing unit coupled to the detector. The ophthalmic testing center system can be configured to perform a multitude of self-administered functional and/or structural ophthalmic tests and output the test data.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: November 29, 2022
    Assignee: Doheny Eye Institute
    Inventors: Alexander C. Walsh, Paul G. Updike, Srinivas R. Sadda
  • Patent number: 11452443
    Abstract: The disclosure herein provides methods, systems, and devices for improving optical coherence tomography machine outputs through multiple enface optical coherence tomography angiography averaging techniques. The embodiments disclosed herein can be utilized in ophthalmology for employing optical coherence tomography (OCT) for in vivo visualization of blood vessels and the flow of blood in an eye of a patient, which is also known generally as optical coherence tomography angiography (OCTA).
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: September 27, 2022
    Assignee: Doheny Eye Institute
    Inventors: SriniVas R. Sadda, Akihito Uji
  • Patent number: 11291364
    Abstract: In accordance with one aspect of the present invention, an optical coherence tomography instrument comprises an eyepiece for receiving at least one eye of a user is provided; a light source that outputs light that is directed through the eyepiece into the user's eye; an interferometer configured to produce optical interference using light reflected from the user's eye; an optical detector disposed so as to detect said optical interference; and electronics coupled to the detector. The electronics can be configured to perform a risk assessment analysis based on optical coherence tomography measurements obtained using the interferometer. An output device can be electrically coupled to the electronics, and may be configured to output the risk assessment to the user through the output device. The optical coherence tomography instrument can be self-administered, and the eyepiece can be a monocular system or a binocular system.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: April 5, 2022
    Assignee: Doheny Eye Institute
    Inventors: Alexander C. Walsh, Paul G. Updike, Srinivas R. Sadda
  • Patent number: 11154226
    Abstract: A medical sensor is described. In an example, the medical sensor includes a nanoscale tapered waveguide attached to a substrate. The nanoscale tapered waveguide includes a nanoscale channel that receives fluid and an excitation light and that outputs a response light. The excitation light propagates through the fluid. A receiving channel of the nanoscale channel is configured as a waveguide that receives and guides the excitation to a linearly tapered channel of the nanoscale channel. The linearly tapered channel has three dimensional linear tapering that focuses the excitation light guided from the receiving channel into an optical response channel of the nanoscale channel. In turn, the optical response channel is configured as a waveguide that outputs a response light in response to the excitation light focused from the linearly tapered channel. The response light corresponds to a response of an analyte of the fluid present in the optical response channel.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: October 26, 2021
    Assignees: California Institute of Technology, University of Southern California, Doheny Eye institute
    Inventors: Yu-Chong Tai, Hyuck Choo, Ramiro Magalhaes Ribeiro, Mark S. Humayun
  • Patent number: 10945597
    Abstract: In accordance with one aspect of the present invention, an optical coherence tomography-based ophthalmic testing center system includes an optical coherence tomography instrument comprising an eyepiece for receiving at least one eye of a user or subject; a light source that outputs light that is directed through the eyepiece into the user's or subject's eye, an interferometer configured to produce optical interference using light reflected from the user's/subject's eye, an optical detector disposed so as to detect said optical interference; and a processing unit coupled to the detector. The ophthalmic testing center system can be configured to perform a multitude of self-administered functional and/or structural ophthalmic tests and output the test data.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: March 16, 2021
    Assignee: Doheny Eye Institute
    Inventors: Alexander C. Walsh, Paul G. Updike, Srinivas R. Sadda
  • Patent number: 10918274
    Abstract: The disclosure herein provides methods, systems, and devices for improving optical coherence tomography machine outputs through multiple enface optical coherence tomography angiography averaging techniques. The embodiments disclosed herein can be utilized in ophthalmology for employing optical coherence tomography (OCT) for in vivo visualization of blood vessels and the flow of blood in an eye of a patient, which is also known generally as optical coherence tomography angiography (OCTA).
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: February 16, 2021
    Assignee: Doheny Eye Institute
    Inventors: SriniVas R. Sadda, Akihito Uji
  • Patent number: 10780272
    Abstract: The present invention is a fitting system with a graphical interface with specific interface screens for specific functions. Methods and devices for fitting a visual prosthesis are described. In one of the methods, threshold levels and maximum levels for the electrodes of the prosthesis are determined and a map of brightness to electrode stimulation levels is later formed. A fitting system for a visual prosthesis is also discussed, together with a computer-operated system having a graphical user interface showing visual prosthesis diagnostic screens and visual prosthesis configuration screens.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: September 22, 2020
    Assignees: Second Sight Medical Products, Inc., Doheny Eye Institute
    Inventors: Matthew J. McMahon, Arup Roy, Scott Greenwald, Ione Fine, Alan Matthew Horsager, Avraham I. Caspi, Kelly Hobart McClure, Robert Jay Greenberg
  • Patent number: 10667404
    Abstract: Polymer materials are useful as electrode array bodies for neural stimulation. They are particularly useful for retinal stimulation to create artificial vision, cochlear stimulation to create artificial hearing, or cortical stimulation many purposes. The pressure applied against the retina, or other neural tissue, by an electrode array is critical. Too little pressure causes increased electrical resistance, along with electric field dispersion. Too much pressure may block blood flow. Common flexible circuit fabrication techniques generally require that a flexible circuit electrode array be made flat. Since neural tissue is almost never flat, a flat array will necessarily apply uneven pressure. Further, the edges of a flexible circuit polymer array may be sharp and cut the delicate neural tissue. By applying the right amount of heat to a completed array, a curve can be induced.
    Type: Grant
    Filed: October 28, 2007
    Date of Patent: May 26, 2020
    Assignees: Second Sight Medical Products, Inc., Doheny Eye Institute
    Inventors: Robert Greenberg, Neil Talbot, Jordan Neysmith, Dilek Guven, James Little, Brian Mech, Mark Humayun
  • Patent number: 10456031
    Abstract: The disclosure herein provides methods, systems, and devices for improving optical coherence tomography machine outputs through multiple enface optical coherence tomography angiography averaging techniques. The embodiments disclosed herein can be utilized in ophthalmology for employing optical coherence tomography (OCT) for in vivo visualization of blood vessels and the flow of blood in an eye of a patient, which is also known generally as optical coherence tomography angiography (OCTA).
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: October 29, 2019
    Assignee: Doheny Eye Institute
    Inventors: SriniVas R. Sadda, Akihito Uji
  • Patent number: 10165941
    Abstract: In accordance with one aspect of the present invention, an optical coherence tomography-based ophthalmic testing center system includes an optical coherence tomography instrument comprising an eyepiece for receiving at least one eye of a user or subject; a light source that outputs light that is directed through the eyepiece into the user's or subject's eye, an interferometer configured to produce optical interference using light reflected from the user's/subject's eye, an optical detector disposed so as to detect said optical interference; and a processing unit coupled to the detector. The ophthalmic testing center system can be configured to perform a multitude of self-administered functional and/or structural ophthalmic tests and output the test data.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: January 1, 2019
    Assignee: Doheny Eye Institute
    Inventors: Alexander C. Walsh, Paul G. Updike, Srinivas R. Sadda
  • Patent number: 10070934
    Abstract: A surgical apparatus for use by a surgeon can include a tray and a plurality of surgical instruments. The tray can have a plurality of structures located on an upper side of the tray for receiving the plurality of surgical instruments. The tray can receive a separate control unit. The tray can also have a fluid reservoir receiver for receiving a bottle or container of fluid, such as balanced salt solution. The fluid reservoir receiver can include one or more features, including, a spike, an air vent, and a light. A separate container can be used to place the bottle or container of fluid into the fluid reservoir receiver on the tray. This separate container can include a collapsible section.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: September 11, 2018
    Assignee: Doheny Eye Institute
    Inventors: Ralph Kerns, Mark Humayun, Matthew T. McCormick, Trent Spencer Wells, Lawrence Chong, Jaw Chyng Lue
  • Patent number: 10010249
    Abstract: The disclosure herein provides methods, systems, and devices for improving optical coherence tomography machine outputs through multiple enface optical coherence tomography angiography averaging techniques. The embodiments disclosed herein can be utilized in ophthalmology for employing optical coherence tomography (OCT) for in vivo visualization of blood vessels and the flow of blood in an eye of a patient, which is also known generally as optical coherence tomography angiography (OCTA).
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: July 3, 2018
    Assignee: Doheny Eye Institute
    Inventors: SriniVas R. Sadda, Akihito Uji
  • Publication number: 20170348147
    Abstract: An implantable medical device is described. The implantable medical device includes a small molecule generator, a small molecule diffusor, and a cannula that connects the two. The small molecule generator includes an electrolyte reservoir and a set of electrodes. A first portion of the electrolyte reservoir is impermeable to a predetermined class of small molecules. A second portion of the electrolyte reservoir is permeable to the small molecules. The set of electrodes is disposed inside the electrolyte reservoir and is configured to facilitate electrolysis of the small molecules based on an electric power application to the set of electrodes and on presence of electrolyte inside the electrolyte reservoir. At least a portion of the small molecule diffusor is permeable to the small molecules.
    Type: Application
    Filed: August 24, 2017
    Publication date: December 7, 2017
    Applicants: California Institute of Technology, University of Southern California, Doheny Eye Institute
    Inventors: Yu-Chong Tai, Nicholas E. Scianmarello, Karthik Murali, Mark S. Humayun, Ramiro Magalhaes Ribeiro
  • Patent number: 9763825
    Abstract: An implantable medical device is described. The implantable medical device includes a small molecule generator, a small molecule diffusor, and a cannula that connects the two. The small molecule generator includes an electrolyte reservoir and a set of electrodes. A first portion of the electrolyte reservoir is impermeable to a predetermined class of small molecules. A second portion of the electrolyte reservoir is permeable to the small molecules. The set of electrodes is disposed inside the electrolyte reservoir and is configured to facilitate electrolysis of the small molecules based on an electric power application to the set of electrodes and on presence of electrolyte inside the electrolyte reservoir. At least a portion of the small molecule diffusor is permeable to the small molecules.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: September 19, 2017
    Assignees: California Institute of Technology, University of Southern California, Doheny Eye Institute
    Inventors: Yu-Chong Tai, Nicholas E. Scianmarello, Karthik Murali, Mark S. Humayun, Ramiro Magalhaes Ribeiro
  • Patent number: 9750639
    Abstract: Electric vitrectomy handpieces are provided. The handpiece includes a motor, a clutch mechanism, an oscillating drive mechanism, a cutting tip and a handle. The motor is attached to the clutch, and the clutch is attached to the oscillating drive mechanism. When the motor is operational, the clutch expands to engage the oscillating drive mechanism and the oscillating drive mechanism converts the rotational motion of the clutch to the reciprocating motion of the cutting tip. When the motor is at rest, the clutch retracts to allow aspiration.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: September 5, 2017
    Assignee: Doheny Eye Institute
    Inventors: Aaron Barnes, Charles DeBoer, Matthew McCormick
  • Patent number: 9730833
    Abstract: A biological tissue cutting and fluid aspiration system provides a plurality of surgical instruments operable independent of an external control console. In some embodiments, each surgical instrument may include all sensors and controls directly applicable to the surgical instrument, and may be used independently. In some embodiments, instruments communicate status information to each other, and adjust operating parameters based on the communications.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: August 15, 2017
    Assignee: Doheny Eye Institute
    Inventors: Mark Humayun, Charles DeBoer, Ralph Kerns, Matthew McCormick, Prashant Bhadri, Lawrence Chong
  • Publication number: 20170071785
    Abstract: An implantable medical device is described. The implantable medical device includes a small molecule generator, a small molecule diffusor, and a cannula that connects the two. The small molecule generator includes an electrolyte reservoir and a set of electrodes. A first portion of the electrolyte reservoir is impermeable to a predetermined class of small molecules. A second portion of the electrolyte reservoir is permeable to the small molecules. The set of electrodes is disposed inside the electrolyte reservoir and is configured to facilitate electrolysis of the small molecules based on an electric power application to the set of electrodes and on presence of electrolyte inside the electrolyte reservoir. At least a portion of the small molecule diffusor is permeable to the small molecules.
    Type: Application
    Filed: September 9, 2016
    Publication date: March 16, 2017
    Applicants: California Institute of Technology, University of Southern California, Doheny Eye Institute
    Inventors: Yu-Chong Tai, Nicholas E. Scianmarello, Karthik Murali, Mark S. Humayun, Ramiro Magalhaes Ribeiro