Patents by Inventor Stefan Catheline

Stefan Catheline 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: 10485516
    Abstract: Method for generating a shear wave in a target region of a soft solid, includes the following steps: a) generating at least two shear waves with a first and a second source of shear waves in the target region; b) detecting a propagation pattern of the shear wave in the target region with a detector unit including a row of ultrasonic transducers aligned on a first direction perpendicular to a detection direction of each or a single ultrasonic transducer movable along a first direction perpendicular to its detection direction; c) proceeding to a time reversal of the detected propagation pattern; and d) submitting the target region to an inverted excitation set of forces based on the temporally inverted propagation pattern. During step b), a first propagation pattern is detected when only the first source is active and a second propagation pattern is detected when only the second source is active.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: November 26, 2019
    Assignees: INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM), Université Claude Bernard Lyon 1, Centre Léon-Bérard
    Inventors: Stefan Catheline, Remi Souchon, Ali Zorgani, Jean-Yves Chapelon
  • Patent number: 10368750
    Abstract: This shear wave imaging method, for collecting information on a target region (R) of a soft solid (S), comprises at least the steps a) of generating at least one shear wave (SW) in the target region, and b) of detecting a propagation pattern of the shear wave in the target region. Step a) is realized by applying to particles of the target region (R) some Lorentz forces resulting from an electric field (E) and from a magnetic field (B). At least one of the electric field (E) and the magnetic field (B) is variable in time, with a central frequency (fo) between 1 Hz and 10 kHz. Alternatively, both the electric and magnetic fields (E, B) are variable in time, with a central difference frequency (?fo) between 1 Hz and 10 kHz. The shear wave imaging installation comprises a first system (4, 7) for generating at least one shear wave (SW) in the target region (R) and a second system (10) for detecting a propagation pattern of the shear wave.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: August 6, 2019
    Assignees: INSERM (Institut National de la Santé et de la Recherche Médicale), Université Claude Bernard Lyon 1
    Inventors: Stefan Catheline, Jean-Yves Chapelon, Remi Souchon, Pol Grasland-Mongrain, Cyril Lafon
  • Publication number: 20160139123
    Abstract: The invention relates to methods comprising a step consisting of determining the proportion and/or the level of T regulatory lymphocytes with a CD4+ CD8??low Foxp3neg phenotype specific for Faecalibacterium prausnitzii for (i) diagnosing, (ii) prognosing outcome of, or (iii) predicting the risk of developing, an inflammatory bowel disease in a patient. The invention also concerns the treatment of an inflammatory bowel disease. The invention further relates to the kits that are useful in the above methods for diagnosing/prognosing an inflammatory bowel disease, and in the treatment of an inflammatory bowel disease. In a particular embodiment, the inflammatory bowel disease is the Crohn's disease.
    Type: Application
    Filed: July 10, 2014
    Publication date: May 19, 2016
    Inventors: Stefan Catheline, Jean-Yves Chapelon, Remi Souchon, Pol Grasland-Mongrain, Cyril Lafon
  • Patent number: 9086505
    Abstract: Method, computer device and software for calculating a corrected temporal variation (dt1)depth or a corrected relative temporal variation (dt1/t1)depth of a first body wave based on a second body wave. The method includes receiving raw seismic data recorded with a receiver; calculating arrival-time variations for the first and second body waves; calculating first and second relative temporal variations for the first and second body waves; and correcting the first relative temporal variation based on the second relative temporal variation to obtain the corrected relative temporal variation or correcting the first temporal variation based on the second temporal variation to obtain the corrected temporal variation. The second wave is either a body wave or a surface wave.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: July 21, 2015
    Assignee: CGGVERITAS SERVICES SA
    Inventors: Benoît de Cacqueray, Thomas Bianchi, Philippe Roux, Michel Campillo, Stefan Catheline
  • Patent number: 9081118
    Abstract: Method, computer device and software for calculating a corrected temporal variation (dt1)depth or a corrected relative temporal variation (dt1/t1)depth of a first body wave based on a second body wave. The method includes receiving raw seismic data recorded with a receiver; calculating arrival-time variations for the first and second body waves; calculating first and second relative temporal variations for the first and second body waves; and correcting the first relative temporal variation based on the second relative temporal variation to obtain the corrected relative temporal variation or correcting the first temporal variation based on the second temporal variation to obtain the corrected temporal variation. A body wave is a wave that experiences at least one reflection before being recorded by the receiver.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: July 14, 2015
    Assignee: CGGVERITAS SERVICES SA
    Inventors: Benoît De Cacqueray, Thomas Bianch, Philippe Roux, Michel Campillo, Stefan Catheline
  • Publication number: 20130131990
    Abstract: Method, computer device and software for calculating a corrected temporal variation (dt1)depth or a corrected relative temporal variation (dt1/t1)depth of a first body wave based on a second body wave. The method includes receiving raw seismic data recorded with a receiver; calculating arrival-time variations for the first and second body waves; calculating first and second relative temporal variations for the first and second body waves; and correcting the first relative temporal variation based on the second relative temporal variation to obtain the corrected relative temporal variation or correcting the first temporal variation based on the second temporal variation to obtain the corrected temporal variation. A body wave is a wave that experiences at least one reflection before being recorded by the receiver.
    Type: Application
    Filed: February 27, 2012
    Publication date: May 23, 2013
    Applicant: CGGVERITAS SERVICES SA
    Inventors: Benoît de Cacqueray, Thomas Bianch, Philippe Roux, Michel Campillo, Stefan Catheline
  • Patent number: 7511711
    Abstract: Apparatus and methods for locating an impact point on a surface of an object. The object is provided with an acoustic sensor that senses the impact from the acoustic waves that are generated when the object is subjected to the impact. The location of the impact on the surface of the object is determined by a recognition step that includes a comparison of the sensed signal to one or more predetermined signals. Each predetermined signal represents an active zone on the surface of the object. A predetermined signal corresponds to the sensed signal when the impact causing the sensed signal is generated in the active zone represented by the predetermined signal. The impact is associated with the active zone represented by a predetermined signal when the sensed signal and the predetermined signal sufficiently correspond to each other.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: March 31, 2009
    Assignee: Sensitive Object
    Inventors: Ros Kiri Kiri Ing, Stefan Catheline, Nicolas Quieffin, Mathias Fink
  • Patent number: 7345677
    Abstract: Apparatus and methods for locating an impact point on a surface of an object. The object is provided with an acoustic sensor that senses the impact from the acoustic waves that are generated when the object is subjected to the impact. The location of the impact on the surface of the object is determined by a recognition step that includes a comparison of the sensed signal to one or more predetermined signals. Each predetermined signal represents an active zone on the surface of the object. A predetermined signal corresponds to the sensed signal when the impact causing the sensed signal is generated in the active zone represented by the predetermined signal. The impact is associated with the active zone represented by a predetermined signal when the sensed signal and the predetermined signal sufficiently correspond to each other.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: March 18, 2008
    Assignee: Sensitive Object
    Inventors: Ros Ing, Stefan Catheline, Nicolas Quieffin, Mathias Fink
  • Publication number: 20050212777
    Abstract: Apparatus and methods for locating an impact point on a surface of an object. The object is provided with an acoustic sensor that senses the impact from the acoustic waves that are generated when the object is subjected to the impact. The location of the impact on the surface of the object is determined by a recognition step that includes a comparison of the sensed signal to one or more predetermined signals. Each predetermined signal represents an active zone on the surface of the object. A predetermined signal corresponds to the sensed signal when the impact causing the sensed signal is generated in the active zone represented by the predetermined signal. The impact is associated with the active zone represented by a predetermined signal when the sensed signal and the predetermined signal sufficiently correspond to each other.
    Type: Application
    Filed: December 28, 2004
    Publication date: September 29, 2005
    Inventors: Ros Ing, Stefan Catheline, Nicolas Quieffin, Mathias Fink
  • Publication number: 20050174338
    Abstract: Apparatus and methods for locating an impact point on a surface of an object. The object is provided with an acoustic sensor that senses the impact from the acoustic waves that are generated when the object is subjected to the impact. The location of the impact on the surface of the object is determined by a recognition step that includes a comparison of the sensed signal to one or more predetermined signals. Each predetermined signal represents an active zone on the surface of the object. A predetermined signal corresponds to the sensed signal when the impact causing the sensed signal is generated in the active zone represented by the predetermined signal. The impact is associated with the active zone represented by a predetermined signal when the sensed signal and the predetermined signal sufficiently correspond to each other.
    Type: Application
    Filed: June 12, 2003
    Publication date: August 11, 2005
    Inventors: Ros Kiri Ing, Stefan Catheline, Nicolas Quieffin, Mathias Fink
  • Patent number: 6770033
    Abstract: The invention concerns an image method for observing the propagation of low-frequency shearing pulse wave simultaneously in multiple points of a diffusing viscoelastic medium. The method consists in transmitting at a very high rate ultrasonic compression waves enabling to obtain a succession of images of the medium; then in delayed processing of the resulting images by intercorrelation to determine in each point of each image the movements of the medium while the shearing wave is being propagated.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: August 3, 2004
    Assignee: Societe d'Elastographie Impulsionnelle pour les Systemes de Mesure de l'Elasticite (SEISME)
    Inventors: Mathias Fink, Laurent Sandrin, Michaël Tanter, Stefan Catheline