Patents by Inventor Benoit Larrat

Benoit Larrat 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).

  • METHOD AND SYSTEM FOR SPECTRAL ANALYSIS AND DETERMINATION OF A MARKER MAKING IT POSSIBLE TO ENSURE THE SAFETY OF THERAPEUTIC ULTRASOUND INTERVENTIONS
    Publication number: 20210393239
    Abstract: A method for performing spectral analysis and determining a safety marker includes an assembly via which: regularly, during shot Bb, at a series of times ta, the variation as a function of time in the spectral lines corresponding to the subharmonic and ultra-harmonic frequencies of a received acoustic-response signal of the microbubbles is measured, and the variation as a function of time, over the times ta, in a safety marker is determined and quantified, the safety marker being defined, at each time ta, by a number MDDa equal to the ratio of the sum of the areas of the spectral lines, measured at the time ta and corresponding to the subharmonic and/or ultra-harmonic frequencies of the received acoustic-response signal of the microbubbles, to the sum of the areas of the spectral lines, measured at the first time t1 and corresponding to the subharmonic and/or ultra-harmonic frequencies of the acoustic-response signal of the microbubbles.
    Type: Application
    Filed: October 16, 2019
    Publication date: December 23, 2021
    Inventors: Anthony NOVELL, Hermes SALLES KAMIMURA, Benoît LARRAT
  • Method for controlling the distribution of the RF magnetic field in a magnetic resonance imaging system
    Patent number: 10816620
    Abstract: A method for controlling the distribution of the RF magnetic field in a magnetic resonance imaging system, having steps of: placing a cage coil in a permanent magnet supplying a permanent magnetic field along a first axis, and supplying an RF signal to the cage coil in order for the coil to generate an RF magnetic field rotating in a plane that runs perpendicular to the first axis; and putting in place an electromagnetic resonator, the resonance mode of which is excited by the rotating magnetic field, the resonator being placed in a position inside or outside the cage coil and at a distance from a region to be analyzed of an object to be placed in the cage coil, the resonance mode and the position of the resonator in relation to the volumetric antenna being suitable for adjusting the intensity of the rotating magnetic field in an area of the region to be analyzed.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: October 27, 2020
    Assignees: UNIVERSITE D'AIX-MARSEILLE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, ECOLE CENTRALE DE MARSEILLE, COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Redha Abdeddaim, Stefan Enoch, Pierre Sabouroux, Gérard Henri Jacques Tayeb, Nicolas Bonod, Alexandre Christian Vignaud, Benoit Larrat, Elodie Virginia Emilia Georget, Lisa Marie Anna Leroi
  • Radio-frequency antenna system based on mode hybridisation for a nuclear magnetic resonance device
    Patent number: 10684332
    Abstract: The invention relates to a radio-frequency antenna system including at least one radio-frequency transmitter and/or receiver and resonators which are mutually electro-magnetically hybridised, coupled with the radio-frequency transmitter and/or receiver, and electrically insulated from one another and from the radio-frequency transmitter and/or receiver.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: June 16, 2020
    Assignee: Centre National De La Recherche Scientifique—CNRS
    Inventors: Mohamed Redha Abdeddaim, Camille Jouvaud, Benoit Larrat, Julien Derosny, Mickael Tanter, Mathias Fink
  • METHOD FOR CONTROLLING THE DISTRIBUTION OF THE RF MAGNETIC FIELD IN A MAGNETIC RESONANCE IMAGING SYSTEM
    Publication number: 20190120917
    Abstract: A method for controlling the distribution of the RF magnetic field in a magnetic resonance imaging system, having steps of: placing a cage coil in a permanent magnet supplying a permanent magnetic field along a first axis, and supplying an RF signal to the cage coil in order for the coil to generate an RF magnetic field rotating in a plane that runs perpendicular to the first axis; and putting in place an electromagnetic resonator, the resonance mode of which is excited by the rotating magnetic field, the resonator being placed in a position inside or outside the cage coil and at a distance from a region to be analyzed of an object to be placed in the cage coil, the resonance mode and the position of the resonator in relation to the volumetric antenna being suitable for adjusting the intensity of the rotating magnetic field in an area of the region to be analyzed.
    Type: Application
    Filed: March 29, 2017
    Publication date: April 25, 2019
    Applicants: UNIVERSITÉ D'AIX-MARSEILLE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, ECOLE CENTRALE DE MARSEILLE, COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Redha ABDEDDAIM, Stefan ENOCH, Pierre SABOUROUX, Gérard Henri Jacques TAYEB, Nicolas BONOD, Alexandre Christian VIGNAUD, Benoit LARRAT, Elodie Virginia Emilia GEORGET, Lisa Marie Anna LEROI
  • RADIO-FREQUENCY ANTENNA SYSTEM BASED ON MODE HYBRIDISATION FOR A NUCLEAR MAGNETIC RESONANCE DEVICE
    Publication number: 20160223630
    Abstract: The invention relates to a radio-frequency antenna system including at least one radio-frequency transmitter and/or receiver and resonators which are mutually electro-magnetically hybridised, coupled with the radio-frequency transmitter and/or receiver, and electrically insulated from one another and from the radio-frequency transmitter and/or receiver.
    Type: Application
    Filed: September 12, 2014
    Publication date: August 4, 2016
    Inventors: Mohamed Redha Abdeddaim, Camille Jouvaud, Benoit Larrat, Julien Derosny, Mickael Tanter, Mathias Fink