公开(公告)号：US07492158B2

公开(公告)日：2009-02-17

申请号：US11515760

申请日：2006-09-06

申请人： Vincenzo Punzo ,  Stefano Pittaluga ,  Stefano Besio ,  Alessandro Trequattrini

发明人： Vincenzo Punzo ,  Stefano Pittaluga ,  Stefano Besio ,  Alessandro Trequattrini

IPC分类号： G01V3/00

CPC分类号： G01R33/3802 ,  G01R33/3875

摘要： A method for determining construction parameters of magnet structures designed to generate magnetic fields in predetermined volumes of space, comprising the steps of: a) defining a predetermined volume of space in which a static magnetic field is to be generated; b) defining the nominal strength and profile of the magnetic field in said predetermined volume of space; c) mathematically describing the nominal magnetic field on the surface of and/or in said predetermined volume of space by using a polynomial expansion of the magnetic field-describing function, which provides a series of coefficients; d) determining the size, geometry and relative position in space of the means for generating said nominal magnetic field, with respect to the volume of space in and on which the desired, i.e. nominal magnetic field, is defined. According to the invention, the predetermined volume of space is delimited by an ideal ellipsoidal closed surface and the magnetic field is expressed by coefficients of a polynomial ellipsoidal harmonic expansion. The method may be also used as a shimming method in volumes of space ideally delimited by ellipsoidal closed surfaces, to be implemented whether or not the predetermined volume of space defined by the magnet structure is also delimited by an ideal closed surface, with an ellipsoidal or other shape.

摘要翻译： 一种用于确定设计成在预定体积的空间中产生磁场的磁体结构的构造参数的方法，包括以下步骤：a）限定要在其中产生静磁场的预定体积的空间; b）限定所述预定体积的空间中的磁场的标称强度和轮廓; c）通过使用提供一系列系数的磁场描述函数的多项式展开来数学地描述和/或在所述预定体积的空间中的标称磁场; d）确定用于产生所述标称磁场的装置的空间中的尺寸，几何形状和相对位置，相对于限定期望的即标称磁场的空间体积。 根据本发明，预定体积的空间由理想的椭圆形封闭表面限定，并且磁场由多项式椭球谐波膨胀系数表示。 该方法还可以用作理想地由椭圆形封闭表面限定的空间体积中的匀场方法，以实现由磁体结构限定的预定体积的空间是否也被理想的封闭表面限定，具有椭圆形或 其他形状。

公开(公告)号：US20080212407A1

公开(公告)日：2008-09-04

申请号：US11817621

申请日：2006-03-02

申请人： Giosue Caliano ,  Alessandro Caronti ,  Vittorio Foglietti ,  Elena Cianci ,  Antonio Minotti ,  Alessandro Nencioni ,  Massimo Pappalardo

发明人： Giosue Caliano ,  Alessandro Caronti ,  Vittorio Foglietti ,  Elena Cianci ,  Antonio Minotti ,  Alessandro Nencioni ,  Massimo Pappalardo

IPC分类号： B06B1/00 ,  H04R31/00 ,  B05D5/12

CPC分类号： B06B1/0292 ,  Y10T29/49005

摘要： The invention concerns a manufacturing process, and the related micromachined capacitive ultra-acoustic transducer, that uses commercial silicon wafer 8 already covered on at least one or, more preferably, on both faces by an upper layer 9 and by a lower layer 9′ of silicon nitride deposited with low pressure chemical vapour deposition technique, or deposition LPCVD deposition. One of the two layers 9 or 9′ of silicon nitride, of optimal quality, covering the wafer 8 is used as emitting membrane of the transducer. As a consequence, the micro-cell array 6 forming the CMUT transducer is grown onto one of the two layers of silicon nitride, i.e. it is grown at the back of the transducer with a sequence of steps that is reversed with respect to the classical technology.

摘要翻译： 本发明涉及一种制造工艺和相关的微加工电容式超声换能器，其使用已经在至少一个或更优选地在两个表面上由上层9和下层9'覆盖的商业硅晶片8 用低压化学气相沉积技术沉积的氮化硅或沉积LPCVD沉积。 覆盖晶片8的最佳质量的氮化硅的两层9或9'之一被用作换能器的发射膜。 因此，形成CMUT换能器的微单元阵列6生长在两层氮化硅之一上，即它在传感器的背面以相对于经典技术颠倒的一系列步骤生长 。

公开(公告)号：US20080097186A1

公开(公告)日：2008-04-24

申请号：US11873545

申请日：2007-10-17

申请人： Eugenio Biglieri ,  Luigi Satragno

发明人： Eugenio Biglieri ,  Luigi Satragno

IPC分类号： A61B6/00 ,  G06K9/00

CPC分类号： A61B5/055 ,  A61B5/4514 ,  A61B5/7267 ,  G06Q10/04 ,  G06Q50/22 ,  G06T7/0012 ,  G06T2207/30004 ,  G16H50/70

摘要： System for determining diagnostic indications which system comprises: at least an apparatus for acquiring diagnostic images; and image processing means for recognizing and measuring qualitative, quantitative, morphologic and/or dynamic characteristics of one or more objects reproduced in acquired images by pixels, or voxels or image data thereof characterized in that processing means and the apparatus for acquiring diagnostic images being integrated within the same device and the processing of the image or images being carried out directly at the end of the acquisition of the image or images as the final and/or intermediate step of the diagnostic imaging session or process.

摘要翻译： 用于确定诊断指示的系统，该系统包括：至少一个用于获取诊断图像的装置; 以及用于识别和测量通过像素在所获取的图像中再现的一个或多个对象的定性，定量，形态和/或动态特性的图像处理装置，或者体素或图像数据，其特征在于处理装置和用于获取集成的诊断图像的装置 并且在图像或图像的获取结束时直接执行的图像或图像的处理是诊断成像会话或处理的最终和/或中间步骤。

公开(公告)号：US07343031B2

公开(公告)日：2008-03-11

申请号：US10956797

申请日：2004-09-30

申请人： Gianni Pedrizzetti ,  Giovanni Tonti

发明人： Gianni Pedrizzetti ,  Giovanni Tonti

IPC分类号： G06K9/00

CPC分类号： A61B8/0883 ,  A61B8/08 ,  A61B8/0891 ,  A61B8/485 ,  A61B8/486 ,  G01S7/52036 ,  G01S7/52046 ,  G01S7/52063 ,  G01S7/52069 ,  G01S15/8981 ,  G01S15/8993 ,  G06T7/0012 ,  G06T7/12 ,  G06T7/251 ,  G06T2207/10016 ,  G06T2207/10132 ,  G06T2207/30048

摘要： A method of tracking position and velocity of objects' borders in two or three dimensional digital images, particularly in echographic images. A sequence is acquired of at least two consecutive ultrasound image frames of a moving tissue or a moving object. The frames are separated by a certain time interval. Reference points define a border of the moving tissue or object and the border is automatically tracked by estimating the position of the reference points in following image frames on the basis of the ultrasound image data of the acquired sequence of image frames.

摘要翻译： 跟踪二维或三维数字图像中物体边界的位置和速度的方法，特别是在回波图像中。 获取运动组织或运动物体的至少两个连续的超声图像帧的序列。 帧被隔开一定的时间间隔。 参考点定义移动组织或物体的边界，并且通过基于所获取的图像帧序列的超声图像数据估计随后图像帧中的参考点的位置来自动跟踪边界。

公开(公告)号：US20070258332A1

公开(公告)日：2007-11-08

申请号：US11743371

申请日：2007-05-02

申请人： Alessandro STUART SAVOIA ,  Giosue CALIANO ,  Alessandro CARONTI ,  Cristina LONGO ,  Massimo PAPPALARDO

发明人： Alessandro STUART SAVOIA ,  Giosue CALIANO ,  Alessandro CARONTI ,  Cristina LONGO ,  Massimo PAPPALARDO

IPC分类号： H04R19/00

CPC分类号： H04R19/00

摘要： The invention concerns a capacitive ultrasonic transducer, comprising an external layer operating as an external plate, provided with electrode means, capable to vibrate, and a stiff substrate, in turn provided with electrode means, wherein it further comprises n levels, with n≧2, interposed between the plate and the substrate, each level including a plurality of cavities, and m interface intermediate layers, capable to vibrate, among said n levels, with m=(n−1), the cavities of each one of said n levels being further defined by support means connected between faced surfaces of layers adjacent to said cavities, each one of said m intermediate layers being provided with electrode means, whereby the cavities of each level are interposed between a pair of electrode means belonging to either two adjacent intermediate layers or to an intermediate layer and to one out of the substrate and the plate.

摘要翻译： 本发明涉及一种电容式超声波换能器，其包括作为外部板操作的外部层，其具有能够振动的电极装置，并且刚性基板又具有电极装置，其中其还包括n个电平，n> 如图2所示，插入在板和基板之间，每个层包括多个空腔，并且能够在所述n个层中振动的m个界面中间层，m =（n-1），所述n 水平面通过连接在与所述空腔相邻的层的表面之间的支撑装置进一步限定，所述m个中间层中的每一个均设置有电极装置，由此每个级别的空腔插入属于两个相邻的一对电极装置 中间层或中间层，并且与基板和板之一接合。

公开(公告)号：US20070059858A1

公开(公告)日：2007-03-15

申请号：US11520145

申请日：2006-09-13

申请人： Alessandro Caronti ,  Giosue Caliano ,  Alessandro Savoia ,  Philipp Gatta ,  Massimo Pappalardo

发明人： Alessandro Caronti ,  Giosue Caliano ,  Alessandro Savoia ,  Philipp Gatta ,  Massimo Pappalardo

IPC分类号： H01L21/00

CPC分类号： B06B1/0292

摘要： The invention relates to an electro-acoustic transducer, particularly an ultrasonic transducer, comprising a plurality of electrostatic micro-cells of the cMUT type. The electrostatic micro-cells are arranged in homogeneous groups of micro-cells having the same geometrical characteristics. The micro-cells of each group have geometries different from the geometry of the micro-cells of the other group or groups.

摘要翻译： 本发明涉及一种电声换能器，特别是一种包括cMUT型多个静电微电池的超声换能器。 静电微电池被布置成具有相同几何特征的均匀的微电池组。 每个组的微细胞具有与其他组或组的微细胞的几何形状不同的几何形状。

公开(公告)号：US07156811B2

公开(公告)日：2007-01-02

申请号：US10687484

申请日：2003-10-16

申请人： Franco Bertora

发明人： Franco Bertora

IPC分类号： A61B8/00

CPC分类号： G10K11/341 ,  G01S15/8977

摘要： An ultrasonic imaging method is described, wherein a back propagation processing method is used. The invention provides a limited number of channels for processing the received signals, such that the which number of processing channels is a submultiple of the number of receiving transducers. During the imaging process, different groups of receiving transducers are connected to the transmitting channels such that the groups of receiving transducers include as many receiving transducers as the number of processing channels in use.

摘要翻译： 描述了一种超声成像方法，其中使用反向传播处理方法。 本发明提供了用于处理接收到的信号的有限数量的信道，使得哪个数量的处理信道是接收换能器的数量的多个。 在成像过程中，不同组的接收换能器连接到发射通道，使得接收换能器组包括与所使用的处理通道数目一样多的接收换能器。

公开(公告)号：US20040263301A1

公开(公告)日：2004-12-30

申请号：US10813262

申请日：2004-03-31

申请人： Esaote S.p.A.

发明人： Stefano Besio ,  Davide Carlini ,  Alessandro Trequattrini ,  Stefano Pittaluga

IPC分类号： B32B009/00

CPC分类号： G01R33/383

摘要： A magnet structure for a Nuclear Magnetic Resonance imaging apparatus includes at least two opposing magnetic pole pieces, which are located at a certain distance from each other and delimit an imaging region. The pole pieces are formed by at least one massive layer of a magnetically permeable material, and at least one layer of magnetically permeable material having a pack of superimposed sheets or foils, electrically insulated from each other. Each of the sheets has cuts arranged over the surface of the sheet in positions that are at least partly non coincident with the cuts of at least one, or both adjacent sheets. The magnetically permeable sheets or foils have a first face and a second face and the cuts are so arranged on each sheet that the cuts of a sheet or foil are offset and not coincident with respect to the cuts of an adjacent sheet or foil, when said adjacent sheet is laid over the previous sheet in an overturned position, i.e. with the first face turned toward the first face of the first sheet or with the second face of said adjacent sheet turned toward the second face of the first sheet.

公开(公告)号：US5792059A

公开(公告)日：1998-08-11

申请号：US756796

申请日：1996-11-26

申请人： Roberto Furia ,  Francesco Pomata

发明人： Roberto Furia ,  Francesco Pomata

IPC分类号： A61B8/00

CPC分类号： A61B8/42 ,  A61B8/00

摘要： An intraoperative probe, specifically intended for direct-contact observations, includes a head for housing the transducers (T) and a portion of a handle or grip, as well as a cable for connecting the transducers (T) to processing and/or displaying devices. According to the invention, said portion of the handle or grip is separate from the transducer-carrying head, as said two parts are equipped with matching means of removable attachment. The invention also provides for a set of accessories that can be attached, individually or in various combinations, to said transducer-carrying head.

摘要翻译： 特别用于直接接触观察的术中探针包括用于容纳换能器（T）和手柄或把手的一部分的头部以及用于将换能器（T）连接到处理和/或显示装置的电缆 。 根据本发明，手柄或把手的所述部分与换能器承载头分离，因为所述两个部件配备有可拆卸附接的匹配装置。 本发明还提供了可以单独或以各种组合附接到所述换能器承载头的一组附件。

公开(公告)号：US20240269709A1

公开(公告)日：2024-08-15

申请号：US18586849

申请日：2024-02-26

申请人： Esaote S.p.A.

发明人： Francesco BERTOCCI ,  Ramona DE LUCA

IPC分类号： B06B1/06 ,  A61B8/00 ,  G10K11/32 ,  H04R17/00

CPC分类号： B06B1/0622 ,  G10K11/32 ,  H04R17/005 ,  A61B8/4494

摘要： Transducer assembly transmits ultrasonic energy towards a zone acoustically coupled to an object or area of interest, and comprises a piezoelectric subassembly matching a curved support layer disposed behind said subassembly. Piezoelectric subassembly comprises piezoelectric elements and metal connections. Piezoelectric elements are disposed along a first azimuth direction to form parallel curved segments of piezoelectric elements extending in a second elevation direction, each being in contact with a corresponding metal connection extending in the elevation direction for transmitting/receiving electric signals to/from each piezoelectric segment. The subassembly has a central part comprising piezoelectric material and a lateral part comprising resin material incorporating the metal connections so that each curved segment results in a sequence of resin/piezoelectric/resin materials disposed along the elevation direction with the extension and curvature of the piezoelectric material in the central part defining the elevation focusing of the transducer assembly. A corresponding manufacturing process is also disclosed.