Patents by Inventor Katrina T. Lieu

Katrina T. Lieu 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: 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
  • Publication number: 20220039999
    Abstract: Apparatus, system and method for providing pressurized infusion of liquids and, more particularly, providing a stable and pressurized flow of fluid to the eye during surgery. Aspiration fluid may be received via an aspiration line at a first peristaltic pump, where aspiration fluid is transferred to a Venturi tank reservoir coupled to a second peristaltic pump. Fluid from a fluid source is provided via a third peristaltic pump to a pressurized infusion tank. A determination is made if the pressure in the pressurized infusion tank is at a predetermined level, where fluid may be transferred from the pressurized infusion tank to an irrigation line when pressure in the pressurized infusion tank is determined to be at the predetermined level. Alternate activation of a plurality of aspiration and irrigation lines are also provided.
    Type: Application
    Filed: October 22, 2021
    Publication date: February 10, 2022
    Inventor: Katrina T. Lieu
  • Patent number: 11154421
    Abstract: Apparatus, system and method for providing pressurized infusion of liquids and, more particularly, providing a stable and pressurized flow of fluid to the eye during surgery. Aspiration fluid may be received via an aspiration line at a first peristaltic pump, where aspiration fluid is transferred to a Venturi tank reservoir coupled to a second peristaltic pump. Fluid from a fluid source is provided via a third peristaltic pump to a pressurized infusion tank. A determination is made if the pressure in the pressurized infusion tank is at a predetermined level, where fluid may be transferred from the pressurized infusion tank to an irrigation line when pressure in the pressurized infusion tank is determined to be at the predetermined level. Alternate activation of a plurality of aspiration and irrigation lines are also provided.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: October 26, 2021
    Assignee: Johnson & Johnson Surgical Vision, Inc.
    Inventor: Katrina T. Lieu
  • 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
  • Publication number: 20190321222
    Abstract: Apparatus, system and method for providing pressurized infusion of liquids and, more particularly, providing a stable and pressurized flow of fluid to the eye during surgery. Aspiration fluid may be received via an aspiration line at a first peristaltic pump, where aspiration fluid is transferred to a Venturi tank reservoir coupled to a second peristaltic pump. Fluid from a fluid source is provided via a third peristaltic pump to a pressurized infusion tank. A determination is made if the pressure in the pressurized infusion tank is at a predetermined level, where fluid may be transferred from the pressurized infusion tank to an irrigation line when pressure in the pressurized infusion tank is determined to be at the predetermined level. Alternate activation of a plurality of aspiration and irrigation lines are also provided.
    Type: Application
    Filed: April 20, 2018
    Publication date: October 24, 2019
    Inventor: Katrina T. Lieu