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    THERMAL STRAIN IMAGING OF TISSUE
    61.
    发明申请
    THERMAL STRAIN IMAGING OF TISSUE 审中-公开
    组织的热应变成像

    公开(公告)号：US20080081995A1

    公开(公告)日：2008-04-03

    申请号：US11866023

    申请日：2007-10-02

    Applicant: Kang Kim ,  Sheng-wen Huang ,  Russell Witte ,  Matthew O'Donnell

    Inventor： Kang Kim ,  Sheng-wen Huang ,  Russell Witte ,  Matthew O'Donnell

    IPC: A61B8/12

    CPC classification number: A61B8/0858 ,  A61B8/587

    Abstract: Thermal strain imaging can be used to identify vascular plaques. Methods include heating and imaging with ultrasound to identify vulnerable plaques, which typically consist of a large lipid-rich core, in peripheral arteries of a patient. Lipid-bearing tissue has a negative temperature dependence of sound speed, whereas water-based tissue has a positive one, allowing thermal strain imaging to differentiate the two different types of tissues with high contrast to characterize plaque composition. Apparatus and methods of the present teachings allow noninvasive and reliable plaque identification.

    Abstract translation: 热应变成像可用于鉴定血管斑块。 方法包括用超声波进行加热和成像，以鉴定在患者的外周动脉中通常由大的富脂质核心组成的易损斑块。 脂质组织具有声速的负温度依赖性，而水基组织具有阳性组织，允许热应变成像区分具有高对比度的两种不同类型的组织以表征斑块组成。 本发明的装置和方法允许非侵入性和可靠的斑块鉴定。

    Apparatus and methods for performing non-invasive vasectomies
    63.
    发明申请
    Apparatus and methods for performing non-invasive vasectomies 审中-公开

    公开(公告)号：US20050149070A1

    公开(公告)日：2005-07-07

    申请号：US11052255

    申请日：2005-02-07

    Applicant: Adam Strickberger ,  Charles Cain ,  Matthew O'Donnell

    Inventor： Adam Strickberger ,  Charles Cain ,  Matthew O'Donnell

    IPC: A61F6/20 ,  A61B17/08

    CPC classification number: A61F6/20

    Abstract: Apparatuses and methods for performing non-invasive vasectomies are provided. In a preferred embodiment, an apparatus according to the present invention comprises a main body defining a recess and an ultrasonic transducer disposed adjacent said recess and adapted to emit ultrasonic energy into said recess. A tissue clamp is removeably disposed in the recess and is adapted to receive parallel sections of a scrotum that include a portion of the vas deferens. The clamp is further adapted to position the vas deferens within an effective distance of the ultrasonic transducer. Also, the apparatus includes means for retaining the parallel sections and the vas deferens within the clamp during a procedure.

    Medical diagnostic ultrasonic imaging system and method
    65.
    发明授权
    Medical diagnostic ultrasonic imaging system and method 有权
    医学诊断超声成像系统及方法

    公开(公告)号：US06358209B1

    公开(公告)日：2002-03-19

    申请号：US09430606

    申请日：1999-10-29

    Applicant: Kutay Ustuner ,  Anming He ,  Matthew O'Donnell

    Inventor： Kutay Ustuner ,  Anming He ,  Matthew O'Donnell

    IPC: A61B800

    CPC classification number: G01S7/52046 ,  H04L25/03993

    Abstract: An ultrasonic imaging system and method provide whitening using a two dimensional pre-detection filter followed by low pass filtering using a two dimensional post-detection filter to reduce speckle variance and enhance spatial resolution of the resulting image. The amplitude of the whitened signal can be adjusted as a function of variance or gradient of the ultrasonic receive signal to reduce undesired side lobes.

    Abstract translation: 超声成像系统和方法使用二维预检测滤波器提供白化，然后使用二维后检测滤波器进行低通滤波，以减少斑点变化并增强所得图像的空间分辨率。 白化信号的幅度可以作为超声波接收信号的方差或梯度的函数进行调整，以减少不期望的旁瓣。

    Ultrasonic flow imaging
    68.
    发明授权
    Ultrasonic flow imaging 失效
    超声波流量成像

    公开(公告)号：US5291892A

    公开(公告)日：1994-03-08

    申请号：US787422

    申请日：1991-11-04

    Applicant: Matthew O'Donnell

    Inventor： Matthew O'Donnell

    IPC: A61B8/06 ,  A61B8/14 ,  G01P5/00 ,  G01P13/00 ,  G01S15/58 ,  G10K11/34

    CPC classification number: G10K11/346 ,  G01S15/8984 ,  G01S15/582

    Abstract: A phased array sector scanning ultrasonic imaging system produces simultaneously, and samples, three receive beams for each transmitted ultrasonic pulse directed upon flowing reflectors. Flow velocity is measured in the cross range direction using a correlation technique while flow velocity in the range direction is simultaneously measured using a Doppler method. By performing cross correlation in both the range and cross range directions with data acquired from a set of such multi-beam acquisitions, a B-scan image is produced which indicates both magnitude and direction of the flowing reflectors.

    Abstract translation: 相控阵扫描超声成像系统同时产生三个接收波束，用于针对流动的反射器的每个发射的超声波脉冲。 使用相关技术在交叉范围方向上测量流速，同时使用多普勒法同时测量范围方向上的流速。 通过在从一组这样的多光束采集中获取的数据在范围和横向方向上执行互相关，产生指示流反射器的大小和方向的B扫描图像。

    Ultrasonic imaging system with multiple, dynamically focused transmit beams
    69.
    发明授权
    Ultrasonic imaging system with multiple, dynamically focused transmit beams 失效
    超声波成像系统具有多个动态聚焦的发射光束

    公开(公告)号：US5142649A

    公开(公告)日：1992-08-25

    申请号：US741875

    申请日：1991-08-07

    Applicant: Matthew O'Donnell

    Inventor： Matthew O'Donnell

    IPC: G01S15/89 ,  G10K11/34

    CPC classification number: G01S15/8952 ,  G10K11/346

    Abstract: A phased array sector scanning (PASS) ultrasonic imaging system produces a steered transmit beam with an array of transducer elements that are driven with separate carrier frequencies. A receiver forms the echo signal into a receive beam steered in the same direction as the transmit beam and is dynamically focused. A transmit beam processor Fourier transforms this receive beam to produce a signals corresponding to the separate carrier frequencies which can be delayed to retrospectively dynamically focus the transmit beam or alter the direction in which it is steered.

    Abstract translation: 相控阵扫描（PASS）超声成像系统产生带有传感器元件阵列的转向发射光束，该阵列由单独的载波频率驱动。 接收机将回波信号形成为与发射波束相同方向转向并被动态聚焦的接收波束。 发射波束处理器傅立叶变换该接收波束以产生对应于单独载波频率的信号，该信号可被延迟以追溯地动态地聚焦发射波束或改变其被引导的方向。

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