Patents by Inventor Sandra H. Keh

Sandra H. Keh 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).

  • Live cataract surgery video in phacoemulsification surgical system
    Patent number: 11722644
    Abstract: A Phacoemulsification surgical system provides a live video feed from a camera that is attached to a surgical microscope. The live video feed is shown as part of a graphical user interface (GUI) of phacoemulsification surgical console either in a picture in picture or a full-screen format. The video feed is either static or displayed on-demand as needed during a surgical procedure. The displaying of a live video feed directly on the phacoemulsification surgical console allows for surgical assistants to interact with the live video feed and phacoemulsification surgical system parameters and/or GUI controls without having to refocus on an external object between near and far distances.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: August 8, 2023
    Assignee: Johnson & Johnson Surgical Vision, Inc.
    Inventors: Edith W. Fung, Katrina T. Lieu, Jacob S. Childs, Stephen M. Christopher, Timothy L. Hunter, Sandra H. Keh
  • Systems and methods for measuring fluid flow in a venturi based system
    Patent number: 11446424
    Abstract: Variables of a surgical system are detected or received via one or more sensors to predict an intraocular pressure (IOP) and/or determine an IOP in real time during a surgical procedure. A notification to a surgeon or a target IOP is set and maintained as determined by Static IOP, dynamic IOP, and/or a total IOP combining both static and dynamic IOP of the anterior chamber of a patient's eye. Information collected about various components of the system are displayed on a user interface. The system uses the collected information to calculate the static IOP and/or dynamic IOP of the system, and the total IOP may be function of the static IOP and/or dynamic IOP measurements.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: September 20, 2022
    Assignee: Johnson & Johnson Surgical Vision, Inc.
    Inventors: Deep Mehta, Dung T. Ma, Sandra H. Keh
  • System and method to augment irrigation pressure and to maintain IOP during post occlusion surge
    Patent number: 11383020
    Abstract: Variables of a surgical system are detected or received via one or more sensors to predict an intraocular pressure (IOP) and/or determine an IOP in real time during a surgical procedure. A notification to a surgeon or a target IOP is set and maintained as determined by Static IOP, dynamic IOP, and/or a total IOP combining both static and dynamic IOP of the anterior chamber of a patient's eye. Information collected about various components of the system are displayed on a user interface. The system uses the collected information to calculate the static IOP and/or dynamic IOP of the system, and the total IOP may be function of the static IOP and/or dynamic IOP measurements.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: July 12, 2022
    Assignee: Johnson & Johnson Surgical Vision, Inc.
    Inventors: Sandra H. Keh, Dung T. Ma, Deep Mehta
  • LIVE CATARACT SURGERY VIDEO IN PHACOEMULSIFICATION SURGICAL SYSTEM
    Publication number: 20210203889
    Abstract: A Phacoemulsification surgical system provides a live video feed from a camera that is attached to a surgical microscope. The live video feed is shown as part of a graphical user interface (GUI) of phacoemulsification surgical console either in a picture in picture or a full-screen format. The video feed is either static or displayed on-demand as needed during a surgical procedure. The displaying of a live video feed directly on the phacoemulsification surgical console allows for surgical assistants to interact with the live video feed and phacoemulsification surgical system parameters and/or GUI controls without having to refocus on an external object between near and far distances.
    Type: Application
    Filed: September 11, 2019
    Publication date: July 1, 2021
    Inventors: Edith W. Fung, Katrina T. Lieu, Jacob S. Childs, Stephen M. Christopher, Timothy L. Hunter, Sandra H. Keh
  • System and Method to Augment Irrigation Pressure and to Maintain IOP During Post Occlusion Surge
    Publication number: 20190099546
    Abstract: Variables of a surgical system are detected or received via one or more sensors to predict an intraocular pressure (IOP) and/or determine an IOP in real time during a surgical procedure. A notification to a surgeon or a target IOP is set and maintained as determined by Static IOP, dynamic IOP, and/or a total IOP combining both static and dynamic IOP of the anterior chamber of a patient's eye. Information collected about various components of the system are displayed on a user interface. The system uses the collected information to calculate the static IOP and/or dynamic IOP of the system, and the total IOP may be function of the static IOP and/or dynamic IOP measurements.
    Type: Application
    Filed: October 4, 2018
    Publication date: April 4, 2019
    Inventors: Sandra H. Keh, Dung T. Ma, Deep Mehta
  • Systems and Methods for Measuring Fluid Flow in a Venturi Based System
    Publication number: 20190099529
    Abstract: Variables of a surgical system are detected or received via one or more sensors to predict an intraocular pressure (IOP) and/or determine an IOP in real time during a surgical procedure. A notification to a surgeon or a target IOP is set and maintained as determined by Static IOP, dynamic IOP, and/or a total IOP combining both static and dynamic IOP of the anterior chamber of a patient's eye. Information collected about various components of the system are displayed on a user interface. The system uses the collected information to calculate the static IOP and/or dynamic IOP of the system, and the total IOP may be function of the static IOP and/or dynamic IOP measurements.
    Type: Application
    Filed: October 4, 2018
    Publication date: April 4, 2019
    Inventors: Deep Mehta, Dung T. Ma, Sandra H. Keh