-
公开(公告)号：EP1326536B1
公开(公告)日：2008-12-10
申请号：EP01980597.7
申请日：2001-10-17
IPC分类号： A61B8/15
CPC分类号： G01S7/52049 , A61B8/0816 , A61B8/15
摘要： The invention concerns a method for focusing acoustic waves useful for obtaining an image of a field to be observed in a dissipative heterogeneous medium (2, 3) around which acoustic transducers (T1-Tn, T'1-T'm) forming an imaging network and a target network. The method consists in following a training step during which pulse responses from the medium are measured between each transducer (Ti) of the imaging network (5) and several transducers (Tj) of the target network (6); deducing therefrom reference signals to be emitted by the transducers of the imaging network to produce a focused acoustic pulse in each transducer of the target network, then cumulatively, in determining reference signals to be emitted to focus an acoustic pulse on predetermined points in the medium. Said reference signals are stored and used subsequently to generate an acoustic image of the medium.
-
2.发明公开
公开(公告)号：EP2121136A1
公开(公告)日：2009-11-25
申请号：EP08762136.3
申请日：2008-02-20
发明人： PERNOT, Mathieu , FINK, Mathias , TANTER, Mickaël , MONTALDO, Gabriel , AUBRY, Jean-François , SINKUS, Ralph
IPC分类号： A61N7/02
CPC分类号： G01S7/52049 , A61B8/0808 , A61N7/02 , A61N2007/0078 , A61N2007/0095 , G01S15/8909
摘要： The invention relates to a method for optimising wave focalisation in an area of interest (6) of a medium (4), the waves being emitted by a source network (3) to the medium (4) via an aberration insertion member (5) for inserting an initially non-determined phase deviation. The method of the invention comprises using M-1 successive modifications of the emitted wave, each resulting in a disturbance. According to the invention, the M disturbances are measured in the area of interest (6) at each modification of the phase and/or amplitude distribution, and these measures are used for deriving optimal focalisation characteristics that maximise the disturbance generated in the area of interest (6).
摘要翻译： 本发明涉及一种用于优化介质（4）的感兴趣区域（6）中的波聚焦的方法，所述波由源网络（3）经由像差插入构件（5）发射到介质（4） 用于插入最初未确定的相位偏差。 本发明的方法包括使用发射波的M-1个连续修改，每个修改导致扰动。 根据本发明，在相位和/或幅度分布的每个修改处，在感兴趣的区域（6）中测量M个扰动，并且这些测量被用于导出使感兴趣区域中产生的扰动最大化的最佳聚焦特性 （6）。
-
公开(公告)号：EP1326536A1
公开(公告)日：2003-07-16
申请号：EP01980597.7
申请日：2001-10-17
IPC分类号： A61B8/15
CPC分类号： G01S7/52049 , A61B8/0816 , A61B8/15
摘要： The invention concerns a method for focusing acoustic waves useful for obtaining an image of a field to be observed in a dissipative heterogeneous medium (2, 3) around which acoustic transducers (T1-Tn, T'1-T'm) forming an imaging network and a target network. The method consists in following a training step during which pulse responses from the medium are measured between each transducer (Ti) of the imaging network (5) and several transducers (Tj) of the target network (6); deducing therefrom reference signals to be emitted by the transducers of the imaging network to produce a focused acoustic pulse in each transducer of the target network, then cumulatively, in determining reference signals to be emitted to focus an acoustic pulse on predetermined points in the medium. Said reference signals are stored and used subsequently to generate an acoustic image of the medium.
-
4.发明公开PROCÉDÉ D'INSONIFICATION POUR OBTENIR UN CHAMP PRÉDÉTERMINÉ D'ONDES ULTRASONORES, ET PROCÉDÉ DE FABRICATION POUR RÉALISER UNE LENTILLE ULTRASONORE À CES FINS 审中-公开声入射PROCESS FOR超声波的预定区域，AND METHOD FOR制造透镜超声达此目的
公开(公告)号：EP3317027A1
公开(公告)日：2018-05-09
申请号：EP16744443.9
申请日：2016-06-30
申请人： Centre National de la Recherche Scientifique (CNRS) , INSERM (Institut National de la Santé et de la Recherche Médicale)
CPC分类号： A61B8/0808 , A61B8/4272 , B06B3/04 , G10K11/30
摘要： The invention relates to a method for obtaining a predetermined field of ultrasonic waves in a uniform inner portion (7) of a medium (3) covered by an aberrating barrier (8). An ultrasonic lens (9) is placed between the emitting ultrasonic probe (2) and the aberrating barrier. The ultrasonic lens is calculated using a model of the medium including a map of propagation properties of the ultrasonic waves obtained by real imagery of the medium, such that when the ultrasonic probe emits a predetermined ultrasonic wave (13a), said predetermined wave produces the predetermined objective ultrasonic wave field in the medium.
-
5.发明授权
公开(公告)号：EP2121136B1
公开(公告)日：2012-11-28
申请号：EP08762136.3
申请日：2008-02-20
发明人： PERNOT, Mathieu , FINK, Mathias , TANTER, Mickaël , MONTALDO, Gabriel , AUBRY, Jean-François , SINKUS, Ralph
CPC分类号： G01S7/52049 , A61B8/0808 , A61N7/02 , A61N2007/0078 , A61N2007/0095 , G01S15/8909
-
6.发明公开
公开(公告)号：EP1531734A1
公开(公告)日：2005-05-25
申请号：EP03758254.1
申请日：2003-08-20
CPC分类号： A61B8/0816 , A61B5/107 , A61B5/7257 , A61B8/00 , A61B8/4218 , A61B8/4281 , A61B8/4455 , A61N7/02 , G01S7/52049
摘要： The invention relates to a non-invasive method of obtaining an acoustic wave field in the brain (19) using a network (17) transducers, which is positioned outside the skull (14). The inventive method comprises an information acquisition phase, whereby a three-dimensional image of the porosity of the skull at every point is used to determine, by means of digital simulation, the elementary acoustic signals to be emitted by the transducers in order to obtain the acoustic wave field in the brain. After said information acquisition phase, the transducer network is used to locate, by means of ultrasonography, the relative position of the transducer network on the skull and to provide a precise position for said network.
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.019 秒)
