公开(公告)号：US07713207B2

公开(公告)日：2010-05-11

申请号：US11593887

申请日：2006-11-07

申请人： David Vilkomerson

发明人： David Vilkomerson

IPC分类号： A61B8/00

CPC分类号： A61B8/06

摘要： An ultrasound system provides Doppler spectral data indicative of a monitored moving fluid. The spectral data is analyzed according to the level of power in specified Doppler frequency ranges. Audio signals indicative of each analyzed range are generated to enable a user to audibly determine said range is in order to detect a certain condition manifested by said fluid motion.

摘要翻译： 超声系统提供指示被监视的移动流体的多普勒频谱数据。 根据指定的多普勒频率范围内的功率电平分析光谱数据。 产生指示每个分析范围的音频信号，以使得用户能够可听见地确定所述范围是为了检测由所述流体运动表现出的特定条件。

公开(公告)号：US20050070799A1

公开(公告)日：2005-03-31

申请号：US10953276

申请日：2004-09-29

申请人： David Vilkomerson ,  Thomas Chilipka

发明人： David Vilkomerson ,  Thomas Chilipka

IPC分类号： A61B8/06 ,  A61B8/12

CPC分类号： G01S15/8918 ,  A61B5/6876 ,  A61B5/6884 ,  A61B8/06 ,  A61B8/12 ,  G01F1/662 ,  G01F1/663 ,  G01S15/8913 ,  G01S15/8984

摘要： A system for monitoring blood flow confined by at least one vessel wall, the system including: at least one implantable diffraction-grating transducer being embedded within or adjacent to a vessel wall, the diffraction-grating transducer being suitable for emitting ultrasound into or receiving Doppler shifted ultrasound from the blood flow; and, a source for pulse-exciting the implantable diffraction grating; wherein, the Doppler shift is indicative of the blood flow.

摘要翻译： 一种用于监测由至少一个血管壁限制的血流的系统，所述系统包括：至少一个植入式衍射光栅换能器嵌入血管壁内或邻近血管壁，所述衍射光栅换能器适于将超声发射或接收多普勒 超声波从血流转移; 以及用于脉冲激励可植入衍射光栅的源; 其中，多普勒频移指示血流量。

公开(公告)号：US06346081B1

公开(公告)日：2002-02-12

申请号：US09522799

申请日：2000-03-10

申请人： David Vilkomerson

发明人： David Vilkomerson

IPC分类号： A61B800

CPC分类号： A61B8/06

摘要： An apparatus for determining the velocity of a fluid flowing through a lumen comprises a first diffraction grating transducer (DGT) responsive to a continuous wave (CW) input and operable in a first mode for producing a first signal beam at a first frequency and first phase, and in a second mode for producing a second signal beam at the first frequency and a second phase; a second diffraction grating transducer (DGT) operating as a receiver and coupled to the first diffraction grating transducer at a predetermined angle, the second diffraction grating transducer producing a first beam which intersects the first DGT first beam for receiving a first reflected signal associated with the first signal beam, and for producing a second beam which intersects the first DGT second beam for receiving a second reflected signal associated with the second signal beam; the first beams adapted to intersect in a first predetermined region through which dynamic particles are undergoing velocity analysis, and the second beams adapted to intersect in a second predetermined region through which dynamic particles are undergoing velocity analysis; and electronic circuitry responsive to the first and second reflected signals for comparing with the first frequency and the first and second phase to determine the velocity of the fluid.

摘要翻译： 用于确定流过管腔的流体的速度的装置包括响应于连续波（CW）输入的第一衍射光栅换能器（DGT），并且可在第一模式下操作，以产生第一频率的第一信号光束和第一相位 以及用于产生第一频率和第二相位的第二信号光束的第二模式; 第二衍射光栅换能器（DGT），其作为接收器并以预定角度耦合到第一衍射光栅换能器，第二衍射光栅换能器产生与第一DGT第一光束相交的第一光束，用于接收与第一衍射光栅换能器 第一信号光束，并且用于产生与第一DGT第二光束相交的第二光束，用于接收与第二信号光束相关联的第二反射信号; 所述第一光束适于在动态粒子经历速度分析的第一预定区域相交，并且所述第二光束适于在动态粒子经历速度分析的第二预定区域中相交; 以及响应于第一和第二反射信号的电子电路，用于与第一频率以及第一和第二相比较以确定流体的速度。

公开(公告)号：US5713362A

公开(公告)日：1998-02-03

申请号：US699229

申请日：1996-08-19

申请人： David Vilkomerson

发明人： David Vilkomerson

IPC分类号： G01F1/66 ,  A61B8/06

CPC分类号： G01F1/667 ,  G01F1/663

摘要： A higher-order quadrature driven diffraction grating ultrasonic transducer and mode of operation, useful for determining the velocity of a fluid under investigation. The diffraction grating of the transducer is easier to fabricate compared to prior art first order quadrature driven diffraction grating ultrasonic transducers because the higher order design allows the grating to be expanded. The higher order design also eliminates the need to vary the frequency or phase of pulse generator used to drive the transducer in order to produce multiple beams needed for fluid velocity measurements.

摘要翻译： 高阶正交驱动衍射光栅超声波换能器和操作模式，用于确定正在研究的流体的速度。 与现有技术的一阶正交驱动衍射光栅超声波换能器相比，换能器的衍射光栅更容易制造，因为较高阶设计允许光栅被扩展。 较高阶设计也不需要改变用于驱动换能器的脉冲发生器的频率或相位，以便产生流体速度测量所需的多个波束。

公开(公告)号：US5488953A

公开(公告)日：1996-02-06

申请号：US228578

申请日：1994-04-15

申请人： David Vilkomerson

发明人： David Vilkomerson

IPC分类号： B06B1/06 ,  A61B8/06 ,  H01L41/04

CPC分类号： G01S7/5209 ,  B06B1/0662

摘要： An ultrasonic transducer apparatus of variable frequency including a diffracting structure adapted for emitting and receiving a plurality of diffracted ultrasonic beams of calculable different angles for determining the velocity of a fluid flowing through a lumen, and flow volume. Velocity and flow volume are determined from at least two equations in the two unknowns of the velocity, and the angle between the ultrasonic transducer apparatus and the direction of the fluid flow, and from a determination of the diameter of the lumen.

公开(公告)号：US5425370A

公开(公告)日：1995-06-20

申请号：US216812

申请日：1994-03-23

申请人： David Vilkomerson

发明人： David Vilkomerson

IPC分类号： A61B8/12 ,  A61B8/08

CPC分类号： A61B8/0841 ,  A61B8/0833

摘要： An ultrasonic imaging system for guiding a user in the placement of an interventional medical device within the body includes a vibrating element which transmits vibratory mechanical oscillation at a predetermined frequency of vibration to the interventional medical device. The medical device oscillates in accordance with the vibratory oscillation so that the interventional medical device completes an oscillation during each vibratory period. An imaging transducer sequentially transmits ultrasonic waves down a selected image line into the imaging region in pulses which are separated by a time interval determined as a function of the vibratory period so that they coincide with maximum displacement of a given point on the interventional device. Return signals received after each pulse are processed to eliminate static and non-static tissue components so that a bright image of the vibrating element is obtained.

摘要翻译： 用于引导使用者在身体内放置介入医疗装置的超声波成像系统包括将振动机械振荡以预定的振动频率传递到介入医疗装置的振动元件。 医疗装置根据振动振荡而振荡，使得介入医疗装置在每个振动周期期间完成振荡。 成像传感器以选定的图像行顺序地将超声波以选定的时间间隔分开的脉冲间隔开成像区域，使得它们与介入装置上的给定点的最大位移一致。 处理每个脉冲之后接收到的返回信号以消除静态和非静态组织分量，从而获得振动元件的明亮图像。

公开(公告)号：US5373845A

公开(公告)日：1994-12-20

申请号：US887473

申请日：1992-05-22

申请人： Bayard Gardineer ,  David Vilkomerson

发明人： Bayard Gardineer ,  David Vilkomerson

IPC分类号： A61B8/00 ,  A61B8/12

CPC分类号： A61B8/4281 ,  A61B8/12 ,  A61B8/445 ,  A61B8/4461

摘要： A scanning system that is forward looking that uses ultrasound for intraluminal imaging. A transducer that emits ultrasonic signals is nutatably mounted on the tip of a probe. The front mounted transducer enables intraluminal scanning of an oncoming area or volume as the probe moves to a selected position in a lumen or body cavity. Cables are used to nutate the transducer so as to provide spiral or raster scanning patterns. The cables are driven by programmable electromagnetic drives. Three dimensional images are then obtained from the reflected ultrasonic signals.

摘要翻译： 前瞻性扫描系统，使用超声波进行腔内成像。 发射超声信号的传感器可以螺母安装在探头的尖端上。 当探头移动到内腔或体腔中的选定位置时，前安装的换能器能够对来临的区域或体积进行腔内扫描。 电缆用于钳位传感器，以提供螺旋或光栅扫描图案。 电缆由可编程电磁驱动器驱动。 然后从反射的超声波信号获得三维图像。

公开(公告)号：US5161536A

公开(公告)日：1992-11-10

申请号：US673949

申请日：1991-03-22

申请人： David Vilkomerson ,  David Lyons

发明人： David Vilkomerson ,  David Lyons

IPC分类号： A61B8/14 ,  A61B8/08 ,  A61B19/00 ,  A61M25/01

CPC分类号： A61B8/0841 ,  A61B8/0833 ,  A61M25/0105 ,  A61B2034/2063 ,  A61B2090/3929

摘要： An ultrasonic imaging system employs a processing circuit which enables the imaging system to accurately display the location of an element in a body by utilizing a transducer which provides an electric signal when an ultrasonic wave impinges thereon. The electric signal is processed to determine the maximum amplitude signals during an entire frame of the ultrasonic imaging system. The signals are characterized in terms of the line at which the signal appears or the ray at which the signal appears and the pixel or location along that line. This information regarding ray and pixel serves as X-Y coordinates enabling one to accurately locate the element and transducer on the displayed image by intensifying the display at that location or by adding color or by producing some other visual effect such as blinking, and so on. Thus the disclosed apparatus in its various forms provides ultrasonic position indication without adjustment whereby one shows the exact location of the localizing transducer.

摘要翻译： 超声波成像系统采用处理电路，使得成像系统能够通过利用当超声波在其上照射时提供电信号的换能器来准确地显示元件在体内的位置。 在超声波成像系统的整个帧期间处理电信号以确定最大振幅信号。 信号的特征在于信号出现的线或信号出现的光线以及沿该线的像素或位置。 关于射线和像素的信息用作X-Y坐标，使得能够通过加强在该位置处的显示或通过添加颜色或通过产生诸如闪烁等一些其他视觉效果来精确地定位所显示的图像上的元件和换能器。 因此，所公开的各种形式的装置提供无需调整的超声波位置指示，由此可以显示定位换能器的确切位置。

公开(公告)号：US5076278A

公开(公告)日：1991-12-31

申请号：US597508

申请日：1990-10-15

申请人： David Vilkomerson ,  Bayard Gardineer ,  Francis A. Debernardis, Jr.

发明人： David Vilkomerson ,  Bayard Gardineer ,  Francis A. Debernardis, Jr.

IPC分类号： A61B8/00 ,  A61B8/08 ,  A61B8/12

CPC分类号： A61B8/0841 ,  A61B8/0833 ,  A61B8/12

摘要： An ultrasonic transducer for use in locating devices with an ultrasonic imaging system which is sensitive over a broad range of angles of incident acoustic beams, such as those beams emitted in ultrasonic systems, has a curved surface, and is an annular member in shape. The elongated catheter or other device passes through the opening of the annular transducer. Based on the shape of such transducers and the wavelength used, the response of the transducers is a function of the angle of the insonifying beam to the catheter axis. The particular response of such transducers is shown to depend on the curvature of the annular marker, with the radius of curvature chosen on the basis of the wavelength used in the ultrasonic scanning system; between 2-50 wavelengths.

摘要翻译： 用于定位具有超声波成像系统的超声波换能器，该超声波成像系统在诸如在超声波系统中发射的那些射束的入射声束的宽范围的角度范围内是敏感的，具有弯曲表面，并且是环形构件的形状。 细长的导管或其他装置通过环形换能器的开口。 基于这种换能器的形状和所使用的波长，换能器的响应是激光束对导管轴线的角度的函数。 显示出这种换能器的特定响应取决于环形标记的曲率，其中基于超声波扫描系统中使用的波长选择曲率半径; 介于2-50个波长之间。

公开(公告)号：US20120197129A1

公开(公告)日：2012-08-02

申请号：US13358507

申请日：2012-01-25

申请人： David Vilkomerson

发明人： David Vilkomerson

IPC分类号： A61B8/06

CPC分类号： A61B8/06 ,  A61B8/0891 ,  A61B8/4455 ,  A61B8/4494 ,  A61B8/488 ,  G01F1/66 ,  G01F1/663 ,  G01F1/74 ,  G01N29/024 ,  G01N29/036 ,  G01S15/8927 ,  G01S15/8929

摘要： The velocity of fluids containing particles that scatter ultrasound can be measured by determining the Doppler shift of the ultrasound scattered by the particles in the fluid. Measuring fluid flow in cylindrical vessels such as blood vessels is an important use of Doppler ultrasound. This invention teaches using various configurations of cylindrical diffraction-grating transducers and cylindrical non-diffraction-grating transducers that suppress the Doppler shift from non-axial components of fluid velocity while being sensitive to the Doppler shift produced by axial velocity components. These configurations thus provide accurate measurement of the net flow down the vessel, even when the fluid flow is curved or not parallel to the vessel wall.

摘要翻译： 含有散射超声的颗粒的流体的速度可以通过确定流体中颗粒散射的超声波的多普勒频移来测量。 测量圆柱血管如血管中的流体流量是多普勒超声的重要用途。 本发明教导了使用圆柱形衍射光栅换能器和圆柱形非衍射光栅换能器的各种配置，其抑制了来自流体速度的非轴向分量的多普勒频移，同时对由轴向速度分量产生的多普勒频移敏感。 因此，即使当流体流动弯曲或不平行于血管壁时，这些构造也可以精确地测量血管下方的净流量。