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    • 3. 发明申请
    • Method of Using a Combination Imaging and Therapy transducer to Dissolve Blood Clots
    • 使用组合成像和治疗传感器溶解血液凝块的方法
    • US20080249409A1
    • 2008-10-09
    • US12065343
    • 2006-08-25
    • John FraserJeffry E. PowersMichalakis Averkiou
    • John FraserJeffry E. PowersMichalakis Averkiou
    • A61N7/00A61B8/00
    • A61N7/02A61B8/0833A61B8/14A61B8/4405A61B8/481A61B2017/22008A61B2090/378A61N2007/0078
    • A combined ultrasound imaging and therapy transducer includes a linear array of imaging transducer elements. First and second linear arrays of therapy transducer elements extend longitudinally along respective first and second sides of the imaging transducer elements and are canted inwardly toward each other. The imaging and therapy transducer is used with an ultrasound imaging system to locate clots in a region of interest. After the region of interest has been perfused with a microbubble contrast agent, the therapy transducer elements are driven by an amplifier located in the transducer to dissolve the clot. The use of the imaging transducer elements and the therapy transducer elements can be interleaved so that the therapy can be conditioned on an ultrasound image showing substantial destruction of the contrast agent microbubbles, re-perfusion of microbubbles in the region of interest, or the continued presence of the clot.
    • 组合的超声成像和治疗换能器包括成像换能器元件的线性阵列。 治疗换能器元件的第一和第二线性阵列沿着成像换能器元件的相应第一和第二侧纵向延伸并且向内朝向彼此倾斜。 成像和治疗传感器与超声成像系统一起使用以定位感兴趣区域中的凝块。 在用微泡造影剂灌注感兴趣区域之后,治疗换能器元件由位于换能器中的放大器驱动以溶解凝块。 可以使用成像换能器元件和治疗换能器元件进行交织,使得治疗可以对超声图像进行调节,该超声图像显示造影剂微泡的显着破坏,感兴趣区域中的微泡再灌注,或继续存在 的凝块。
    • 8. 发明申请
    • ULTRASONIC VASCULAR FLOW SENSOR WITH TRIANGULAR SENSOR GEOMETRY
    • 超声波流量传感器,具有三角形传感器几何
    • US20120184854A1
    • 2012-07-19
    • US13203065
    • 2010-02-10
    • Balasundara RajuEric Cohen-SolalRamon ErkampJohn Fraser
    • Balasundara RajuEric Cohen-SolalRamon ErkampJohn Fraser
    • A61B8/06
    • A61B8/06A61B8/4236A61B8/4483A61B8/4494B06B1/0629
    • An ultrasonic blood flow sensor includes a plurality of adjacent triangular shaped transducer elements which transmit ultrasound waves into a blood vessel and receive reflected ultrasound waves from the blood flow in the vessel. Preferably the transducer elements are paired in pairs of transmit and receive elements. The elements are fixed in a matrix which may be attached in acoustic coupling contact with the skin The matrix retains adjacent transducer elements slightly spaced apart so that the matrix of transducer elements may bend and conform to the shape of the skin surface. The spacing between the triangular elements is neither parallel nor orthogonal to the length dimension of the matrix so that a blood vessel will not be aligned with a space between transducer elements when the matrix is affixed across the location of a blood vessel. In addition the geometry of the elements creates a beam pattern that provide more overlap between transmit and receive beam profiles, thereby increasing the area of sensor coverage.
    • 超声波血流传感器包括多个相邻的三角形换能器元件,其将超声波传输到血管中并从血管中的血流接收反射的超声波。 优选地,换能器元件成对地配对成对的发射和接收元件。 这些元件被固定在可以与皮肤的声学耦合接触附接的矩阵中。矩阵保持相邻的换能器元件稍微间隔开,使得换能器元件的矩阵可以弯曲并符合皮肤表面的形状。 三角形元件之间的间距既不平行也不垂直于矩阵的长度尺寸,使得当基体固定在血管的位置时,血管将不会与换能器元件之间的空间对齐。 此外,元件的几何形状产生了在发射和接收波束轮廓之间提供更多重叠的波束图案,从而增加了传感器覆盖面积。