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    • 1. 发明申请
    • 2D ULTRASOUND IMAGING WITH PULSED WAVE DOPPLER OR COLOR FLOW IMAGING
    • 二维超声成像与脉冲波多普勒或彩色血流成像
    • WO2017149350A1
    • 2017-09-08
    • PCT/IB2016/051110
    • 2016-02-29
    • B-K MEDICAL APS
    • MARTINS, Bo
    • G01S7/52G01S15/89
    • G01S7/52073A61B8/46G01S7/52066G01S15/8984G01S15/8986
    • An ultrasound imaging system includes receive circuitry (110) configured to receive electrical signals from ultrasound transducer elements wherein the electrical signals are indicative of sensed ultrasound echo signals. The system further includes an image process (114) configured to process the electrical signals and generate a 2-D image. The system further includes a vessel wall identifier (116) configured to identify at least a proximal wall and a distal wall of a vessel in the B-mode image from the B-image employing a signal mirroring technique. The system further includes a rendering engine (124) configured to display the 2-D image on a display (126) with graphical indicia corresponding to the identified proximal wall and distal wall superimposed over the vessel in the 2-D image.
    • 超声成像系统包括配置成从超声换能器元件接收电信号的接收电路(110),其中电信号指示感测的超声回波信号。 该系统还包括被配置为处理电信号并生成2-D图像的图像处理(114)。 该系统还包括被配置为使用信号镜像技术从B图像识别B模式图像中的血管的至少近侧壁和远侧壁的血管壁标识符(116)。 该系统还包括被配置为在显示器(126)上显示具有图形标记的绘制引擎(124),该图形标记对应于在2D图像中叠加在血管上方的所标识的近端壁和远端壁。
    • 2. 发明申请
    • HIGH RESOLUTION COMPOUND ULTRASOUND FLOW IMAGING
    • 高分辨率复合超声波流动成像
    • WO2017115104A1
    • 2017-07-06
    • PCT/IB2015/060016
    • 2015-12-28
    • B-K MEDICAL APS
    • HAUGAARD, PerSEERUP, Gert
    • A61B8/00A61B8/06G01S15/89G01S7/52
    • G01S15/8997A61B8/06A61B8/0891A61B8/488A61B8/5207A61B8/54G01S7/52095G01S15/8915G01S15/8979G01S15/8984G01S15/8988
    • An ultrasound imaging system includes a transducer array (202) with a plurality of transducer elements (206) configured to transmit a pulsed field beam into a scan field of view, receive echo signals produced in response to the pulsed field interacting with particles/ structure flowing/moving in the scan field of view, and generate electrical signals indicative of the echo signals. The ultrasound imaging system further includes a beamformer (212) including multiple synthetic transmit aperture beamformers configured to process the electrical signals over a plurality of processing channels (312) into corresponding receive-beams of RF-data with a beam- level delay, channel-level delays, a beam-level gain and channel- level gains. The ultrasound imaging system further includes a velocity processor (216) configured to estimate a flow velocity of the structure flowing in the scan field of view from the RF-data. The ultrasound imaging system further includes a rendering engine (224) configured to display the flow velocity estimate on a display (226) with color- coding.
    • 超声成像系统包括具有多个换能器元件(206)的换能器阵列(202),所述换能器元件被配置为将脉冲场光束发射到扫描视场中,接收响应于 脉冲场与在扫描视场中流动/移动的粒子/结构相互作用,并产生表示回波信号的电信号。 超声成像系统还包括包括多个合成传输孔径波束形成器的波束形成器(212),其被配置为将多个处理信道(312)上的电信号处理为具有波束级延迟, 级别延迟,波束级增益和信道级增益。 超声成像系统还包括配置成估计从RF数据在扫描视场中流动的结构的流速的速度处理器(216)。 超声成像系统还包括渲染引擎(224),其被配置为利用颜色编码在显示器(226)上显示流速估计。
    • 4. 发明申请
    • METHOD FOR REMOVING DOPPLER ANGLE AMBIGUITY
    • 去除多普勒角度的方法
    • WO2007110696A2
    • 2007-10-04
    • PCT/IB2006003709
    • 2006-09-15
    • TORTOLI PIERO
    • TORTOLI PIERO
    • A61B8/06A61B8/4483G01S15/8979G01S15/8984
    • A method of measuring blood flow including several steps. In an initial step a first ultrasound beam is oriented in a direction substantially perpendicular to the direction of the blood flow to be measured. Next, the Doppler spectrum obtained from the backscattered echoes of said first ultrasound beam is measured. Subsequently, the ultrasound beam is reoriented so that the Doppler spectrum of the backscattered echoes of the ultrasound beam is substantially symmetrical around the zero frequency. The Doppler frequency of the backscattered echoes of a second ultrasound beam oriented at a fixed angle to the first ultrasound beam is then measured. Finally, the rate of blood flow is calculated based on the angle between the ultrasound beams and the measured Doppler frequency of the backscattered echoes of the second ultrasound beam.
    • 一种测量血流的方法,包括几个步骤。 在初始步骤中,第一超声波束在基本上垂直于待测血流方向的方向上取向。 接下来,测量从所述第一超声波束的后向散射回波获得的多普勒频谱。 随后,超声波束被重新定向,使得超声波束的背向散射回波的多普勒频谱围绕零频率基本上对称。 然后测量与第一超声波束以固定角度定向的第二超声波的后向散射回波的多普勒频率。 最后,基于超声波束之间的角度和第二超声波束的背向散射回波的测量多普勒频率来计算血流速率。
    • 9. 发明申请
    • ULTRASOUND APPARATUS FOR MONITORING BLOOD FLOW AND DETECTING EMBOLI
    • 用于监测血液流动和检测手术的超声波装置
    • WO01087162A1
    • 2001-11-22
    • PCT/US2001/015723
    • 2001-05-15
    • A61B8/06G01S7/52G01S15/58G01S15/89
    • A61B8/467A61B8/06A61B8/0816A61B8/463G01S7/52036G01S7/52046G01S7/52071G01S7/52073G01S15/8984G01S15/8988H04B2001/6908
    • A pulse Doppler ultrasound system (150) and associated methods are described for monitoring blood flow and detecting emboli. A graphical information display includes simultaneously displayed depth-mode (102) and spectrogram displays (108). The depth-mode display (102) indicates the various positions along the ultrasound beam axis at which blood flow is detected. These positions are indicated as one or more colored regions (104, 106), with the color indicating direction of blood flow and varying in intensity as a function of detected Doppler ultrasound signal amplitude or detected blood flow velocity. The depth-mode display (102) also includes a pointer whose position may be selected by a user. The spectrogram (108) displayed corresponds to the location identified by the pointer. Embolus detection and characterization are also provided.
    • 描述脉搏多普勒超声系统(150)和相关方法用于监测血流和检测栓塞。 图形信息显示包括同时显示的深度模式(102)和频谱图显示(108)。 深度模式显示(102)指示沿着检测血流的超声波束轴的各种位置。 这些位置被指示为一个或多个着色区域(104,106),其颜色指示血流的方向并且作为检测到的多普勒超声信号幅度或检测到的血流速度的函数而变化。 深度模式显示(102)还包括其位置可由用户选择的指针。 显示的频谱图(108)对应于由指针识别的位置。 还提供了栓塞检测和表征。
    • 10. 发明申请
    • METHOF FOR DETERMINING TRUE MAGNITUDE OF BLOOD VELOCITY
    • 用于确定血液速度的真实性的方法
    • WO1995032667A1
    • 1995-12-07
    • PCT/US1995006547
    • 1995-05-24
    • THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    • THE REGENTS OF THE UNIVERSITY OF CALIFORNIAFERRARA, Katherine, W.ALGAZI, V., Ralph
    • A61B08/06
    • G01S15/8993A61B8/06A61B8/483G01F1/667G01S7/52071G01S15/8984
    • A method for assessing and displaying the true three dimensional magnitude of fluid velocity using ultrasonic imaging signals is disclosed. Fluid (12), such as blood, flowing through a vessel (10) is subjected to ultrasound imaging signals using a transducer (16). Axial velocity of fluid motion in relation to the transducer beam (14) is then determined from the imaging signals. Next, a region of laminar flow is identified using the axial velocity. Lateral transit time in the region of laminar flow is then estimated as an indication of velocity in the direction perpendicular to the transducer beam. The three-dimensional velocity magnitude is then estimated using the lateral transit time and the total distance across the lateral beam width, or by using the beam to vessel angle (22) which is estimated using the lateral transit time. The estimated three-dimensional velocity is then displayed as a numerical representaion or as an image as a two-dimensional waveform as a function of time or as a color flow map where the velocity magnitude is represented by different colors and/or intensity of color.
    • 公开了一种使用超声波成像信号评估和显示流体速度的真实三维幅度的方法。 使用换能器(16)对流过容器(10)的流体(例如血液)进行超声成像。 然后根据成像信号确定相对于换能器束(14)的流体运动的轴向速度。 接下来,使用轴向速度来识别层流区域。 然后,在层流区域内的横向运行时间被估计为垂直于换能器束的方向上的速度的指示。 然后使用横向传播时间和穿过横向波束宽度的总距离,或者使用使用横向传播时间估计的波束到容器角度(22)来估计三维速度幅度。 然后将估计的三维速度作为数值表示或作为二维波形的图像作为时间的函数显示,或者作为颜色流动图,其中速度幅度由不同颜色和/或颜色强度表示。