Patents by Inventor Françoise Chavrier

Françoise Chavrier 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: 12245892
    Abstract: This method for imaging in real time the propagation of a mechanical wave in an acoustically propagative medium comprises steps of: a) emitting (1000) a mechanical wave in an acoustically propagative medium, using an acoustic source being placed in an emission region of the acoustically propagative medium, b) measuring (1002) voltage signal waveform values at a reception region, using an acoustic measurement unit; c) calculating (1004) acoustic field values in the acoustically propagative medium, between the emission region and the reception region, using a reconstruction algorithm implemented in a signal processing unit, and the signal waveform values measured during step b) d) generating an image, using an image generation device and using the calculated acoustic field values.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: March 11, 2025
    Assignees: INSTITUT NATIONAL DE LA SANTE DE LA RECHERCHE MEDICALE (INSERM), UNIVERSITÉ CLAUDE BERNARD LYON, CENTRE LÉON-BÉRARD
    Inventors: William Apoutou N'Djin, Kazuhiro Matsui, Françoise Chavrier, Rémi Souchon
  • Patent number: 10987524
    Abstract: An interstitial ultrasound thermal ablation applicator for conformal treatment of an inhomogeneous tumor lesion includes: a body having a longitudinal axis; and a plurality of array transducers mounted on the body, arranged side by side and having azimuth directions parallel to the longitudinal axis of the body, and having outer faces disposed in a polygonal arrangement; the plurality of array transducers having predetermined elevation dimensions defined for directing emitted ultrasonic energy to obtain a conformal volume treatment of the tumor lesions. An electronic driving method for driving an applicator having multiple independent transducer elements arranged in rows and columns includes: controlling focal parameters of each row and column of transducer elements; and controlling a contribution of each row and column of transducer elements in a manner to provide a conformal ablated volume.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: April 27, 2021
    Inventors: Alexandre Carpentier, An Nguyen-Dinh, Jean-Yves Chapelon, Rémi Dufait, Christophe Notard, Françoise Chavrier, Cyril Lafon, Michael Canney, William Apoutou N'Djin
  • Publication number: 20190374205
    Abstract: This method for imaging in real time the propagation of a mechanical wave in an acoustically propagative medium comprises steps of: a) emitting (1000) a mechanical wave in an acoustically propagative medium, using an acoustic source being placed in an emission region of the acoustically propagative medium, b) measuring (1002) voltage signal waveform values at a reception region, using an acoustic measurement unit; c) calculating (1004) acoustic field values in the acoustically propagative medium, between the emission region and the reception region, using a reconstruction algorithm implemented in a signal processing unit, and the signal waveform values measured during step b) d) generating an image, using an image generation device and using the calculated acoustic field values.
    Type: Application
    Filed: January 10, 2018
    Publication date: December 12, 2019
    Inventors: William Apoutou N'DJIN, Kazuhiro MATSUI, Françoise CHAVRIER, Rémi SOUCHON
  • Publication number: 20180036558
    Abstract: An interstitial ultrasound thermal ablation applicator for conformal treatment of an inhomogeneous tumor lesion includes: a body having a longitudinal axis; and a plurality of array transducers mounted on the body, arranged side by side and having azimuth directions parallel to the longitudinal axis of the body, and having outer faces disposed in a polygonal arrangement; the plurality of array transducers having predetermined elevation dimensions defined for directing emitted ultrasonic energy to obtain a conformal volume treatment of the tumor lesions. An electronic driving method for driving an applicator having multiple independent transducer elements arranged in rows and columns includes: controlling focal parameters of each row and column of transducer elements; and controlling a contribution of each row and column of transducer elements in a manner to provide a conformal ablated volume.
    Type: Application
    Filed: October 20, 2017
    Publication date: February 8, 2018
    Inventors: Alexandre CARPENTIER, An NGUYEN-DINH, Jean-Yves CHAPELON, Rémi DUFAIT, Christophe NOTARD, Françoise CHAVRIER, Cyril LAFON, Michael CANNEY, William Apoutou N'DJIN
  • Patent number: 9517359
    Abstract: A device for treatment of an ocular pathology characterized in that it comprises at least one eye ring (1) wherein the proximal end of said eye ring (1) is suitable to be applied onto the globe and a generator (2,17) to generate ultrasound beam fixed on the distal end of the eye ring (1), the generator to generate ultrasound beam presenting a concave segment shape conformed along a single curvature corresponding to a single direction wherein the concavity is designed to be tuned towards the eyeglobe.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: December 13, 2016
    Assignees: EYE TECH CARE, INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM)
    Inventors: Fabrizio Romano, Cyril Lafon, Jean-Yves Chapelon, Françoise Chavrier, Alain Birer, Laurent Farcy, Philippe Chapuis
  • Publication number: 20140257262
    Abstract: An interstitial ultrasound thermal ablation applicator for conformal treatment of inhomogeneous tumor lesions includes: a body having a longitudinal axis, the body defining a hollow central channel along the longitudinal axis; and a plurality of CMUT array transducers mounted on the body, arranged side by side to form a cylindrical shape, having azimuth plans parallel to a longitudinal axis of the body, each of the plurality of CMUT array transducers having elevation dimensions predetermined to steer emitted ultrasonic waves to obtain a conformal volume treatment of the tumor lesions. An electronic driving method for driving an applicator having multiple independent transducer elements arranged in rows and columns includes: controlling focal parameters of each row and column of transducer elements; and controlling a contribution of each row and column of transducer elements in a manner to provide a conformal ablated volume.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 11, 2014
    Inventors: Alexandre CARPENTIER, An NGUYEN-DINH, Jean-Yves CHAPELON, Rémi DUFAIT, Christophe NOTARD, Françoise CHAVRIER, Cyril LAFON, Michael CANNEY, William Apoutou N'DJIN
  • Patent number: 8652073
    Abstract: The present invention relates to a device for treatment of an ocular pathology, the device comprising at least one eye ring wherein the proximal end of said eye ring is suitable to be applied onto the globe and means to generate ultrasound beam fixed on the distal end of the eye ring, said means to generate ultrasound beam presenting a concave segment shape conformed along a single curvature corresponding to a single direction wherein the concavity is designed to be tuned towards the eyeglobe.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: February 18, 2014
    Assignee: Eye Tech Care
    Inventors: Fabrizio Romano, Cyril Lafon, Jean-Yves Chapelon, Françoise Chavrier, Alain Birer, Laurent Farcy, Philippe Chapuis