Patents by Inventor Ashwin VISWANATH

Ashwin VISWANATH 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).

  • Methods and devices for changing the flow rates of pH modifying fluids for controlling cross-linking rates of reactive components of biocompatible sealing compositions
    Patent number: 12576183
    Abstract: A method of making a biocompatible composition for sealing tissue includes mixing a first fluid having a first reactive component (e.g., an electrophile) and a second fluid having a second reactive component (e.g., a nucleophile) to form a mixture and expressing the mixture. During expression, a pH modifying fluid (e.g., NaOH) is added to the mixture at a rate that changes. In one embodiment, a higher ratio of the pH modifying fluid is added to the mixture during a first expressing stage and a lower ratio of said pH modifying fluid is added to the mixture during a second expressing stage. During the first expressing stage, a mixing ratio of the pH modifying fluid, the first fluid and the second fluid is 0.7-1.4:1:1. During the second expressing stage, the mixing ratio of the pH modifying fluid, the first fluid and the second fluid is 0.12-0.24:1:1.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: March 17, 2026
    Assignee: Ethicon, Inc.
    Inventors: Sridevi Dhanaraj, Salim Ghodbane, Ashley Deanglis, Michael Cardinale, Nicole Smith, Ashwin Viswanath
  • Methods and Devices for Changing the Flow Rates of PH Modifying Fluids for Controlling Cross-Linking Rates of Reactive Components of Biocompatible Sealing Compositions
    Publication number: 20240033399
    Abstract: A method of making a biocompatible composition for sealing tissue includes mixing a first fluid having a first reactive component (e.g., an electrophile) and a second fluid having a second reactive component (e.g., a nucleophile) to form a mixture and expressing the mixture. During expression, a pH modifying fluid (e.g., NaOH) is added to the mixture at a rate that changes. In one embodiment, a higher ratio of the pH modifying fluid is added to the mixture during a first expressing stage and a lower ratio of said pH modifying fluid is added to the mixture during a second expressing stage. During the first expressing stage, a mixing ratio of the pH modifying fluid, the first fluid and the second fluid is 0.7-1.4:1:1. During the second expressing stage, the mixing ratio of the pH modifying fluid, the first fluid and the second fluid is 0.12-0.24:1:1.
    Type: Application
    Filed: December 3, 2021
    Publication date: February 1, 2024
    Inventors: Sridevi DHANARAJ, Salim GHODBANE, Ashley DEANGLIS, Michael CARDINALE, Nicole SMITH, Ashwin VISWANATH