Patents by Inventor Ashwin Viswanathan

Ashwin Viswanathan 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: 12370367
    Abstract: A method of determining brain stimulation parameters includes applying Low Frequency Stimulation (LFS) to a contact of a multi-contact electrode implanted in a target structure in an individual's brain. Evoked Compound Activity (ECA) evoked in the target structure by the LFS is measured. A range of frequencies for delivering brain stimulation within a predetermined range based on a phase space extracted from the ECA is determined. Stimulation frequencies are applied to the contact of the multi-contact electrode within the determined range of frequencies. High Frequency Oscillations (HFO) evoked in the target structure by the applied stimulation frequencies within the determined range are measured. A frequency evoking HFO above a predetermined threshold is determined. The determined frequency is selected as a treatment frequency for the target structure.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: July 29, 2025
    Assignee: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Nuri F. Ince, Musa Ozturk, Ashwin Viswanathan
  • Patent number: 12168134
    Abstract: A method of locating an implantation site in the brain includes inserting a plurality of multi-contact electrodes into a region of a target structure in an individual's brain. High Frequency Stimulation (HFS) is applied to a contact of a multi-contact electrode of the plurality of multi-contact electrodes. High Frequency Oscillations (HFO) evoked in the region of the target structure by the HFS are measured. Evoked Compound Activity (ECA) evoked in the region of the target structure by the HFS is measured. It is determined if at least one of the HFO and the ECA is above a predetermined threshold. If at least one of the HFO and the ECA is above the predetermined threshold, a location of the contact of the multi-contact electrode is identified as a site for electrode implantation in the individual's brain.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: December 17, 2024
    Assignee: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Nuri F. Ince, Musa Ozturk, Ashwin Viswanathan
  • Publication number: 20220047872
    Abstract: A method of locating an implantation site in the brain includes inserting a plurality of multi-contact electrodes into a region of a target structure in an individual's brain. High Frequency Stimulation (HFS) is applied to a contact of a multi-contact electrode of the plurality of multi-contact electrodes. High Frequency Oscillations (HFO) evoked in the region of the target structure by the HFS are measured. Evoked Compound Activity (ECA) evoked in the region of the target structure by the HFS is measured. It is determined if at least one of the HFO and the ECA is above a predetermined threshold. If at least one of the HFO and the ECA is above the predetermined threshold, a location of the contact of the multi-contact electrode is identified as a site for electrode implantation in the individual's brain.
    Type: Application
    Filed: August 12, 2021
    Publication date: February 17, 2022
    Inventors: Nuri F. Ince, Musa Ozturk, Ashwin Viswanathan
  • Publication number: 20220047873
    Abstract: A method of determining brain stimulation parameters includes applying Low Frequency Stimulation (LFS) to a contact of a multi-contact electrode implanted in a target structure in an individual's brain. Evoked Compound Activity (ECA) evoked in the target structure by the LFS is measured. A range of frequencies for delivering brain stimulation within a predetermined range based on a phase space extracted from the ECA is determined. Stimulation frequencies are applied to the contact of the multi-contact electrode within the determined range of frequencies. High Frequency Oscillations (HFO) evoked in the target structure by the applied stimulation frequencies within the determined range are measured. A frequency evoking HFO above a predetermined threshold is determined. The determined frequency is selected as a treatment frequency for the target structure.
    Type: Application
    Filed: August 12, 2021
    Publication date: February 17, 2022
    Inventors: Nuri F. Ince, Musa Ozturk, Ashwin Viswanathan