利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

108 条记录 (耗时 0.051 秒)

    Singular value filter for imaging or detection
    91.
    发明授权
    Singular value filter for imaging or detection 有权
    用于成像或检测的奇异值滤波器

    公开(公告)号：US09002080B2

    公开(公告)日：2015-04-07

    申请号：US13650821

    申请日：2012-10-12

    申请人： F. William Mauldin, Jr. ,  John A. Hossack ,  Abhay V. Patil

    发明人： F. William Mauldin, Jr. ,  John A. Hossack ,  Abhay V. Patil

    IPC分类号： G06K9/00 ,  G06K9/62 ,  A61B8/08

    CPC分类号： G06K9/6247 ,  A61B8/0891 ,  A61B8/481 ,  A61B8/485 ,  A61B8/5207 ,  G01S7/52039 ,  G01S7/52041 ,  G01S7/52042 ,  G01S7/52046 ,  G01S15/8915 ,  G01S15/8981

    摘要： Apparatus or techniques can include obtaining information indicative of energy, such as ultrasonic energy, reflected from a tissue region, forming respective input matrices representative of the obtained information, the input matrices respectively comprising an ensemble-of-interest and at least one ensemble corresponding to a spatial location nearby a spatial location corresponding to the ensemble-of-interest, performing respective singular value decompositions on the respective input matrices to obtain respective sets of singular values corresponding to respective sets of singular vectors, obtaining respective output matrices including weighting a respective projection of a respective ensemble-of-interest onto at least one of the singular vectors included in a respective set of singular vectors, and, using the respective output matrices, at least one of determining a characteristic, or constructing an image, of at least a portion of the tissue region.

    摘要翻译： 设备或技术可以包括获得指示诸如超声波能量的信息的信息，例如从组织区域反射，形成表示所获得信息的相应输入矩阵，输入矩阵分别包括感兴趣集合和至少一个对应于 相邻于感兴趣集合的空间位置附近的空间位置，在各个输入矩阵上执行各自的奇异值分解，以获得对应于各组奇异矢量的各组奇异值，获得各自的输出矩阵，包括对相应投影加权 将相关的感兴趣整体集合到包含在相应的一组奇异矢量中的奇异矢量中的至少一个，并且使用相应的输出矩阵，确定至少一个 部分组织区域。

    Efficient architecture for 3D and planar ultrasonic imaging - synthetic axial acquisition and method thereof
    93.
    发明申请
    Efficient architecture for 3D and planar ultrasonic imaging - synthetic axial acquisition and method thereof 审中-公开
    用于3D和平面超声成像的高效架构 - 合成轴向采集及其方法

    公开(公告)号：US20120029356A1

    公开(公告)日：2012-02-02

    申请号：US13267297

    申请日：2011-10-06

    申请人： John A. Hossack ,  Travis N. Blalock ,  William F. Walker

    发明人： John A. Hossack ,  Travis N. Blalock ,  William F. Walker

    IPC分类号： A61B8/14

    CPC分类号： A61B8/4483 ,  A61B8/00 ,  A61B8/483 ,  G01S7/52025 ,  G01S7/52088

    摘要： An improved device and method for collecting data used for ultrasonic imaging. The data is gathered over numerous transmit and echo receive cycles, or iterations and combined into a synthetic acquisition representing a complete echo characteristic acquisition. At each iteration, only a portion, or subset, of the echo characteristic is sampled and stored. During the iterations, the portion of the echo characteristic that is measured and sampled is varied by changing the relative sampling instants. That is, the time offset from the transmission to the respective sampling instant is varied. The sample sets representative of the entire echo characteristic are then compiled from the multiple subsets of the ultrasonic transmissions.

    摘要翻译： 一种用于收集用于超声成像的数据的改进的装置和方法。 数据在多个发送和回波接收周期或迭代中被收集，并被组合成代表完整回波特征采集的合成采集。 在每次迭代中，仅对回波特性的一部分或子集进行采样和存储。 在迭代期间，通过改变相对采样时刻来改变测量和采样的部分回波特性。 也就是说，从发送到相应采样时刻的时间偏移是变化的。 然后，从超声波传输的多个子集编译表示整个回波特性的样本集合。

    Hybrid dual layer diagnostic ultrasound transducer array
    95.
    发明授权
    Hybrid dual layer diagnostic ultrasound transducer array 有权
    混合双层诊断超声换能器阵列

    公开(公告)号：US07750537B2

    公开(公告)日：2010-07-06

    申请号：US11840079

    申请日：2007-08-16

    申请人： John A. Hossack ,  Travis N. Blalock ,  William F. Walker

    发明人： John A. Hossack ,  Travis N. Blalock ,  William F. Walker

    IPC分类号： H01L41/08

    CPC分类号： B06B1/0629 ,  A61B8/4483 ,  A61B8/483 ,  G01S15/8913 ,  G01S15/8915 ,  G10K11/004

    摘要： An ultrasound transducer array having a transmit transducer element comprising a transmit transducer material interposed between a transmit electrode and a reference electrode, wherein voltages applied across the transmit electrode and reference electrode induce an acoustic wave to emanate from the transmit transducer material; and a plurality of receive transducer elements positioned in an array on the transmit transducer element, each of the plurality of the receive transducer elements comprising a receive electrode and a receive transducer material interposed between the receive electrode and the reference electrode, and wherein acoustic waves applied to the plurality of receive transducer elements induces receive voltage signals on the receive electrodes with respect to the reference electrode.

    摘要翻译： 一种具有发射换能器元件的超声换能器阵列，其包括插入在发射电极和参考电极之间的发射换能器材料，其中施加在所述发射电极和参考电极两端的电压引起从所述发射换能器材料发出的声波; 以及多个接收换能器元件，其定位在所述发射换能器元件上的阵列中，所述多个所述接收换能器元件中的每一个包括插入在所述接收电极和所述参考电极之间的接收电极和接收换能器材料，并且其中施加声波 到多个接收换能器元件相对于参考电极在接收电极上感应出接收电压信号。

    Method and system for reducing undesirable cross talk in diagnostic ultrasound arrays
    96.
    发明授权
    Method and system for reducing undesirable cross talk in diagnostic ultrasound arrays 失效
    用于减少诊断超声阵列中不期望的串扰的方法和系统

    公开(公告)号：US06918877B2

    公开(公告)日：2005-07-19

    申请号：US10635687

    申请日：2003-08-05

    申请人： John A. Hossack ,  Gregory L. Woicik

    发明人： John A. Hossack ,  Gregory L. Woicik

    IPC分类号： A61B8/00 ,  A61B8/06 ,  B06B1/02 ,  B06B1/06 ,  G01H11/06 ,  G10K11/34

    CPC分类号： G10K11/346 ,  B06B1/0292 ,  B06B1/0622 ,  G01H11/06

    摘要： Practical diagnostic ultrasound arrays invariably exhibit a degree of unwanted inter-element cross coupling or cross talk. This results in degraded beam performance that in turn results in degraded image resolution (spatial resolution and contrast performance). Current approaches to reducing inter element coupling may be costly and may make the transducer array fragile. There is a need to overcome the cross talk problem with minimal expense and impact on reliability. The approach taken here overcomes a substantial component of the cross talk with minimal expense. The approach is versatile and has applicability in both transmit and receive. The approach improves image resolution. This technique has particular applicability in the field of silicon substrate based MEMS transducers in which the continuous, low loss, silicon wafer substrate gives rise to significant unwanted cross talk.

    摘要翻译： 实际的诊断超声阵列总是表现出一定程度的不必要的元件间交叉耦合或串扰。 这导致光束性能下降，从而导致图像分辨率降低（空间分辨率和对比度性能）。 减少元件间耦合的当前方法可能是昂贵的，并且可能使得换能器阵列易碎。 需要以最小的成本和对可靠性的影响来克服串扰问题。 这里采取的方法克服了交叉话题的重要组成部分，并以最低的费用。 该方法是多功能的，并且在发送和接收两者中都具有适用性。 该方法提高了图像分辨率。 该技术在基于硅衬底的MEMS传感器领域中具有特别的适用性，其中连续的低损耗硅晶片衬底产生显着的不希望的串扰。

    Medical diagnostic ultrasound catheter and method for position determination
    97.
    发明授权
    Medical diagnostic ultrasound catheter and method for position determination 有权
    医疗诊断超声导管及位置测定方法

    公开(公告)号：US06612992B1

    公开(公告)日：2003-09-02

    申请号：US09516868

    申请日：2000-03-02

    申请人： John A. Hossack ,  Michael G. Curley ,  Thilaka S. Sumanaweera ,  John I. Jackson

    发明人： John A. Hossack ,  Michael G. Curley ,  Thilaka S. Sumanaweera ,  John I. Jackson

    IPC分类号： A61B200

    CPC分类号： A61B8/445 ,  A61B5/065 ,  A61B8/12 ,  A61B8/4254 ,  G01S15/8993

    摘要： A catheter and method for determining a position of the catheter within the cardiovascular system is provided. Local bending and twisting is measured at multiple locations along the catheter. By integrating the measurements, the position and orientation of the catheter is determined. Based on the catheter position information, the location and orientation of an ultrasound transducer array connected with the catheter is known. The imaging array position and orientation information may be used to assist a physician in determining the tissue structure or fluid being scanned and/or assist in the accurate generation of three-dimensional representations.

    摘要翻译： 提供了用于确定导管在心血管系统内的位置的导管和方法。 沿着导管的多个位置测量局部弯曲和扭转。 通过整合测量，确定导管的位置和取向。 基于导管位置信息，与导管连接的超声换能器阵列的位置和取向是已知的。 成像阵列位置和取向信息可以用于帮助医生确定正在扫描的组织结构或流体，和/或协助精确生成三维表示。

    Medical diagnostic ultrasound system and method for flow analysis
    98.
    发明授权
    Medical diagnostic ultrasound system and method for flow analysis 有权
    医学诊断超声系统及流量分析方法

    公开(公告)号：US06503202B1

    公开(公告)日：2003-01-07

    申请号：US09607556

    申请日：2000-06-29

    申请人： John A. Hossack ,  Thilaka S. Sumanaweera ,  Anming He Cai ,  Sandy Napel ,  David Paik ,  Brooke Jeffrey, Jr.

    发明人： John A. Hossack ,  Thilaka S. Sumanaweera ,  Anming He Cai ,  Sandy Napel ,  David Paik ,  Brooke Jeffrey, Jr.

    IPC分类号： A61B802

    CPC分类号： A61B8/06 ,  A61B8/13 ,  G06F19/00

    摘要： Medical diagnostic ultrasound methods and systems for automated flow analysis are provided. Multiple cross-sectional areas along a vessel are determined automatically. A processor locates an abnormality as a function of the multiple cross-sectional areas, such as identifying a cross-sectional area that is a threshold amount less than an average cross-sectional area. The abnormal area is highlighted on the display to assist with medical diagnosis. For the carotid artery, the interior and exterior branches are labeled to assist medical diagnosis. The two branches are automatically identified. The branch associated with additional small branches is identified as the exterior carotid.

    摘要翻译： 提供了用于自动化流量分析的医疗诊断超声方法和系统。 自动确定沿船只的多个横截面积。 处理器根据多个横截面区域来定位异常，例如识别小于平均横截面积的阈值量的横截面面积。 异常区域在显示屏上突出显示，以协助医疗诊断。 对于颈动脉，内部和外部分支被标记以协助医学诊断。 两个分支自动识别。 与额外的小分支相关的分支被鉴定为外颈动脉。

    Medical diagnostic ultrasound transducer system and method for harmonic imaging
    99.
    发明授权
    Medical diagnostic ultrasound transducer system and method for harmonic imaging 有权
    医用诊断超声换能器系统及谐波成像方法

    公开(公告)号：US06409667B1

    公开(公告)日：2002-06-25

    申请号：US09511472

    申请日：2000-02-23

    申请人： John A. Hossack

    发明人： John A. Hossack

    IPC分类号： A61B800

    CPC分类号： A61B8/481 ,  B06B1/064 ,  G01S7/52025 ,  G01S7/52046 ,  G01S15/8909 ,  G01S15/895

    摘要： A transducer system and method for harmonic imaging is provided. At least one transducer element is provided. The transducer element comprises two stacked piezoelectric layers. Information from each of the layers is independently processed during one of a transmit event, a receive event, and both transmit and receive events. Information from the transducer element is provided to a filter. The filter isolates harmonic information for imaging. By providing a multi-layer transducer element with independent processing for each layer, a wide bandwidth transducer for harmonic imaging is provided. The null associated with most transducers at the second harmonic of a fundamental frequency is removed or lessened.

    摘要翻译： 提供了一种用于谐波成像的换能器系统和方法。 提供至少一个换能器元件。 换能器元件包括两个堆叠的压电层。 来自每个层的信息在发送事件，接收事件以及发送和接收事件之一中被独立地处理。 来自换能器元件的信息被提供给过滤器。 滤波器隔离成像的谐波信息。 通过为每层提供具有独立处理的多层换能器元件，提供用于谐波成像的宽带传感器。 与基频的二次谐波处的大多数换能器相关联的零点被去除或减小。