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    Method and device for spectral analysis of an echographic signal
    2.
    发明授权
    Method and device for spectral analysis of an echographic signal 有权
    用于回波信号的频谱分析的方法和装置

    公开(公告)号：US07815573B2

    公开(公告)日：2010-10-19

    申请号：US10383674

    申请日：2003-02-25

    申请人： Leonardo Masotti ,  Elena Biagi ,  Simona Granchi ,  Luca Breschi

    发明人： Leonardo Masotti ,  Elena Biagi ,  Simona Granchi ,  Luca Breschi

    IPC分类号： A61B8/00

    CPC分类号： G01S7/52038 ,  G01S7/52026 ,  G01S15/8977

    摘要： A description is given of a method of spectral analysis of a radio frequency ultrasonic signal reflected by a structure subjected to echographic examination, comprising the steps of: a) transmitting an ultrasonic excitation signal into a portion of said structure under examination; b) receiving a radio frequency response signal from said structure; c) applying a time-frequency transform to said radio frequency response signal, dividing the radio frequency response signal into a plurality of frequency bands; d) calculating a local spectral parameter from the values of the time-frequency transform.

    摘要翻译： 对由经过回波检查的结构反射的射频超声信号的频谱分析方法进行说明，包括以下步骤：a）将超声波激发信号发送到被检查结构的一部分; b）从所述结构接收射频响应信号; c）对所述射频响应信号应用时频变换，将射频响应信号分成多个频带; d）根据时频变换的值计算局部频谱参数。

    Method and device for local spectral analysis of an ultrasonic signal
    3.
    发明授权
    Method and device for local spectral analysis of an ultrasonic signal 失效
    用于超声信号局部频谱分析的方法和装置

    公开(公告)号：US07509861B2

    公开(公告)日：2009-03-31

    申请号：US10595336

    申请日：2004-10-05

    申请人： Leonardo Masotti ,  Elena Biagi ,  Simona Granchi ,  Luca Breschi

    发明人： Leonardo Masotti ,  Elena Biagi ,  Simona Granchi ,  Luca Breschi

    IPC分类号： G01N29/46 ,  A61B8/00 ,  G06K9/20

    CPC分类号： G01S7/52036 ,  G01S15/8977

    摘要： The method decomposes the radio frequency signal into sub-bands by filtering, for example with a time-frequency transform. From the coefficients acquired through decomposition a matrix of spectral coefficients is obtained, from which local estimators are obtained, constituted in particular by the coefficients of the interpolating polynomials. The statistical distribution of the local estimators is evaluated in windows overlaid on the ultrasound frame. The conformation of the distribution histograms of the spectral coefficients provides a parameter which, combined with the local estimators, provides weighted local estimators, which contain spectral information useful in the identification of specific structures in the organ subjected to ultrasound analysis.

    摘要翻译： 该方法通过例如通过时间 - 频率变换的滤波将射频信号分解成子带。 从通过分解获得的系数中，获得频谱系数矩阵，从其获得局部估计器，特别地由内插多项式的系数构成。 在覆盖在超声帧上的窗口中评估局部估计量的统计分布。 频谱系数的分布直方图的构象提供了一个参数，其与局部估计器组合提供加权的局部估计器，其包含有用于识别经过超声分析的器官中的特定结构的光谱信息。

    Ultrasound image focusing method and relative ultrasound system
    4.
    发明授权
    Ultrasound image focusing method and relative ultrasound system 有权
    超声图像聚焦法和相对超声系统

    公开(公告)号：US07090641B2

    公开(公告)日：2006-08-15

    申请号：US10718333

    申请日：2003-11-20

    申请人： Elena Biagi ,  Leonardo Masotti ,  Marco Scabia ,  Iacopo Rossi ,  Nicola Dreoni

    发明人： Elena Biagi ,  Leonardo Masotti ,  Marco Scabia ,  Iacopo Rossi ,  Nicola Dreoni

    IPC分类号： A61B8/00

    CPC分类号： G06T9/007 ,  G01S15/8918

    摘要： The method comprises the phases of: sending a series of excitation ultrasonic signals to a volume being investigated, by means of an array of transducers aligned in a transverse direction (x), said ultrasonic signals propagating in depth in said volume according to a direction of propagation (y); acquiring, by means of said transducers, signals reflected from reflectors located in the volume being investigated; performing on said reflected signals a transform in the transverse direction from a spatial domain (x,y), defined by said transverse direction (x) and by said direction of propagation (y), to a first transformed domain; applying, in the transformed domain, a two-dimensional transformation, to straighten every curved image (Ip1, Ip2, Ip3) of a reflector in said volume being investigated and make it essentially orthogonal to the direction of propagation (y); compressing, in the transverse direction (x) each of the straightened curves (Im1, Im2, Im3) to concentrate said straightened image in a zone centered at the level of the position of said reflector along said transverse direction (x).

    摘要翻译： 该方法包括以下阶段：通过沿横向方向（x）排列的换能器阵列，将一系列激发超声波信号发送到被研究的体积，所述超声波信号在所述体积中根据 传播（y）; 通过所述换能器获取从位于正被研究的体积中的反射器反射的信号; 对所述反射信号执行从由所述横向（x）和所述传播方向（y）定义的空间域（x，y）到横向的变换到第一变换域; 在变换的域中应用二维变换，以校正正在研究的所述体积中的反射器的每个弯曲图像（Ip 1，Ip 2，Ip 3），并使其基本上与传播方向（y）正交; 在横向方向（x）上压缩每个矫直曲线（Im 1，Im 2，Im 3），以将所述矫直图像沿着所述横向（x）集中在位于所述反射器的位置的水平面的区域中。

    Opto-acoustic generator of ultrasound waves from laser energy supplied via optical fiber
    5.
    发明授权
    Opto-acoustic generator of ultrasound waves from laser energy supplied via optical fiber 有权
    来自通过光纤提供的激光能量的超声波的光声发生器

    公开(公告)号：US06519376B2

    公开(公告)日：2003-02-11

    申请号：US09920123

    申请日：2001-08-01

    申请人： Elena Biagi ,  Fabrizio Margheri ,  Leonardo Masotti ,  David Menichelli

    发明人： Elena Biagi ,  Fabrizio Margheri ,  Leonardo Masotti ,  David Menichelli

    IPC分类号： G02F1335

    CPC分类号： G10K15/046

    摘要： The opto-acoustic generator of ultrasound waves comprises an optical fiber associated to a laser-energy source, and an opto-acoustic transducer which is applied to said fiber and is designed to be impinged upon by the laser beam and to absorb partially the energy, converting it into thermal energy, thus bringing about the formation of ultrasound waves by the thermo-acoustic effect. Said opto-acoustic transducer consists of a layer or film containing prevalently graphite, which is applied on a surface of said optical fiber.

    摘要翻译： 超声波的光声发生器包括与激光能源相关联的光纤，以及光声换能器，其被施加到所述光纤并被设计成被激光束照射并部分地吸收能量， 将其转化为热能，从而通过热声效应引起超声波的形成。 所述光声换能器由施加在所述光纤表面上的含有普遍石墨的层或膜组成。

    Sub-dermal laser skin treatment
    7.
    发明授权
    Sub-dermal laser skin treatment 有权
    皮下激光皮肤治疗

    公开(公告)号：US08113209B2

    公开(公告)日：2012-02-14

    申请号：US11704710

    申请日：2007-02-09

    申请人： Leonardo Masotti ,  George E. S. Cho

    发明人： Leonardo Masotti ,  George E. S. Cho

    IPC分类号： A61B19/00

    CPC分类号： A61B18/22 ,  A61B2017/00057 ,  A61B2017/00084 ,  A61B2018/00005 ,  A61B2018/2288 ,  A61B2090/3937 ,  A61B2562/0276

    摘要： A method and system for skin tightening comprises a hollow cannula that contains an optical fiber connected to a laser source. The cannula is inserted subcutaneously into a patient so that the end of the fiber is located within the tissue underlying the dermis. The source emits an output pulse that is conveyed by the fiber to the dermis, where the pulse causes collagen destruction and shrinkage within the treatment area. Radiation from the skin surface is detected to prevent non-reversible damage to the dermis, such as skin necrosis and excessive collagen melting. This method of sub-cutaneous laser treatment can also be used to treat striae, or stretch marks.

    摘要翻译： 用于皮肤紧固的方法和系统包括中空插管，其包含连接到激光源的光纤。 将套管皮下插入患者体内，使得纤维的末端位于真皮下面的组织内。 源发射由纤维传送到真皮的输出脉冲，其中脉冲导致治疗区域内的胶原蛋白破坏和收缩。 检测皮肤表面的辐射以防止对真皮的不可逆损伤，例如皮肤坏死和过度的胶原蛋白熔化。 这种亚皮肤激光治疗方法也可用于治疗条纹或妊娠纹。