公开(公告)号：US20180317884A1

公开(公告)日：2018-11-08

申请号：US15763717

申请日：2016-09-29

申请人： INSTITUTE NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM) ,  UNIVERSITÉ CLAUDE BERNARD LYON 1 ,  CENTRE LÉON-BÉRARD

发明人： Jean-Yves CHAPELON ,  Jean-Louis MESTAS ,  Cyril LAFON ,  Bernard GREILLIER ,  René MILLERET

IPC分类号： A61B8/00 ,  A61B90/00 ,  A61N7/02

CPC分类号： A61B8/4483 ,  A61B90/36 ,  A61B90/37 ,  A61B2017/22008 ,  A61B2090/378 ,  A61N7/02 ,  A61N2007/0078

摘要： This device (2) for generating ultrasonic waves in a target region of a soft solid, includes at least two ultrasound sources (32), light sources (40) distributed around a central axis (X2) of the device (2), for enlightening a zone of the soft solid via subsurface scattering, and a video camera (50), for capturing images of the zone enlightened by the lighting means. The ultrasound source (32), the light sources (40) and the video camera (50) are mounted on a body of the device (20) and oriented toward a common target zone which includes a focal point of the ultrasound sources (32). A boresight of the video camera is aligned on the central axis (X2).

公开(公告)号：US20180348168A1

公开(公告)日：2018-12-06

申请号：US15778703

申请日：2016-11-25

申请人： INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM) ,  UNIVERSITÉ CLAUDE BERNARD LYON 1 ,  CENTRE LÉON-BÉRARD

发明人： Stefan CATHELINE ,  Jean-Yves CHAPELON ,  Cyril LAFON

IPC分类号： G01N29/04 ,  G01S7/52 ,  G01S15/89 ,  A61B8/08 ,  A61B8/00 ,  A61N7/02

CPC分类号： G01N29/041 ,  A61B8/085 ,  A61B8/0858 ,  A61B8/4444 ,  A61B8/485 ,  A61B8/5223 ,  A61N7/02 ,  A61N2007/0052 ,  A61N2007/0095 ,  G01N2291/0231 ,  G01N2291/0427 ,  G01S7/52022 ,  G01S7/52042 ,  G01S15/8922 ,  G01S15/8927

摘要： This method for determining a mechanical property of a layered soft material, includes steps of a) generating an ultrasound wave (W1) focused towards a first point (P1) of the material, said wave, upon interacting with a layer of said material, generating in turn a Lamb (L1) wave propagating into said layer of the material, b) measuring, at a second point (P2) of the material belonging to said layer, a physical parameter of the generated Lamb wave, c) automatically determining the mechanical property of the layered soft material, based on the measured physical parameter. Step a) is performed by exciting a first ultrasonic transducer (401) with a first excitation signal (S401) during at most 50 ms, step b) is performed by exciting a second ultrasonic transducer (402) with a second excitation signal (S402) during at most 0.5 ms, to generate multiple excitation ultrasound waves (W2) focused towards said second point (P2) and, then, collecting multiple reflected waves (W2′) emitted in response, said first and second ultrasonic transducers each comprises an oscillator having a quality factor equal to or superior to 100, preferably equal or superior to 1000.