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    • 6. 发明授权
    • Apparatus for ultrasonic arteriography
    • 超声动脉造影仪
    • US4109642A
    • 1978-08-29
    • US454423
    • 1974-03-25
    • John M. ReidMerrill P. Spencer
    • John M. ReidMerrill P. Spencer
    • A61B8/06G01F1/66G01S15/50G01S15/89A61B10/00
    • A61B8/4218A61B8/06G01F1/66G01S15/50G01S15/8979G01S15/8993G01N2291/02836
    • Continuous wave ultrasonic sound waves from a transmitter and receiver are highly focused to a width of approximately 1 millimeter or less and are transmitted and received through intersecting paths within the tissue of a patient. A doppler flow detector produces an image of the moving blood within the vessel. The transmitter and receiver are systematically scanned over the subject and the detected images are converted into visually intelligible pictures.An improved circuit for more clearly defining the flow picture of the moving blood particles utilizes a conventional directional doppler circuit plus a multiplier-differentiator-low pass filter circuit to automatically eliminate venous flow signals. A grey scale oscilloscope provides brightness intensity on the visual picture proportional to the velocity and direction of the blood flow for detecting stenosis in the vessel.A recording technique is disclosed for detecting atherosclerotic thickening of the artery wall.A multiple beam scanner is disclosed which requires movement only in the longitudinal direction of the vessel.
    • 来自发射器和接收器的连续波超声波被高度聚焦到大约1毫米或更小的宽度,并且通过患者组织内的相交路径被传送和接收。 多普勒流量检测器产生血管内移动血液的图像。 发射机和接收机被系统地扫描主体,并将检测到的图像转换成视觉上可理解的图像。
    • 7. 发明授权
    • Endourethral device and method
    • 尿道装置及方法
    • US07758542B2
    • 2010-07-20
    • US11604959
    • 2006-11-28
    • Mark J. WhalenLloyd K. WillardJohn M. Reid
    • Mark J. WhalenLloyd K. WillardJohn M. Reid
    • A61M31/00
    • A61M25/0017A61F2/0027A61M25/04A61M25/1011A61M2210/1089
    • Several embodiments of an endourethral prosthesis, assembly, and attendant methods are provided for patients presenting with lower urinary tract symptoms (LUTS) or urinary retention. The endourethral prosthesis includes a reversibly expandable element disposed circumferentially about, and longitudinally along a tubular member adapted to receive urine. The tubular member is positionable within a lower urinary tract such that the reversibly expandable element operatively engages a structure of the lower urinary tract so as to prevent migration of the prosthesis so positioned. The reversibly expandible element is in non-reversible fluid communication with the tubular element for selective expansion thereof, the reversibly expandible element is further operatively engagable so as to discharge fluid non-reversibly received from the tubular member exterior to same.
    • 为具有较低尿路症状(LUTS)或尿潴留的患者提供内尿道假体,组装和伴随方法的若干实施例。 内尿道假体包括可逆地扩张的元件,其沿着适于接收尿液的管状构件周向地纵向设置。 管状构件可定位在下尿路内,使得可逆扩张的元件可操作地接合下尿道的结构,以便防止如此定位的假体的移动。 可逆膨胀元件与管状元件不可逆地流体连通,用于其选择性膨胀,可逆膨胀元件进一步可操作地接合,从而将外部不可逆地从管状构件接收的流体排出到外部。
    • 8. 发明授权
    • Ultrasonic living body tissue characterization system
    • 超声波生物体组织表征系统
    • US4575799A
    • 1986-03-11
    • US477935
    • 1983-03-23
    • Hirohide MiwaJohn M. Reid
    • Hirohide MiwaJohn M. Reid
    • A61B8/00G01N29/00G01S7/52G01S15/89G01N29/04A61B10/00
    • G01S15/8954G01S7/52025G01S7/52036
    • A method for ultrasonic living body tissue characterization using a transducer and processor. The method includes the steps of transmitting an ultrasonic pulse into the tissue and receiving a reflected pulse, calculating the normalized power frequency spectrum of the reflected pulse, determining the frequency at which the maximum value for the power spectrum occurs, determining the high and low half power frequencies, calculating the upper and lower frequency ratios of the maximum value frequency and the half power frequencies, and determining the power exponent of the frequency of the reflection coefficient. The frequency exponent of the reflection coefficient is used to calculate the attenuation slope of the ultrasonic wave. The attenuation slope or the reflection power exponent is used to generate a tomographic image of the living tissue characteristics for visual non-invasive tissue diagnosis. The attenuation slope and/or the reflection power exponent tomographic image or the others can be combined with a reflection intensity tomographic image or the others to produce other diagnostic images.
    • 一种使用换能器和处理器进行超声波生物体组织表征的方法。 该方法包括以下步骤:将超声波脉冲发送到组织并接收反射脉冲,计算反射脉冲的归一化功率频谱,确定发生功率谱的最大值的频率,确定高低半 功率频率,计算最大值频率和半功率频率的上,下频率比,并确定反射系数频率的幂指数。 反射系数的频率指数用于计算超声波的衰减斜率。 衰减斜率或反射功率指数用于产生用于视觉非侵入性组织诊断的活组织特征的断层图像。 衰减斜率和/或反射功率指数断层图像等可以与反射强度断层图像等组合,以产生其他诊断图像。
    • 9. 发明授权
    • Endourethral device and method
    • 尿道装置及方法
    • US07141038B2
    • 2006-11-28
    • US10343894
    • 2001-08-07
    • Mark J. WhalenLloyd K. WihlardJohn M. Reid
    • Mark J. WhalenLloyd K. WihlardJohn M. Reid
    • A61M29/00A61M31/00
    • A61M25/0017A61F2/0027A61M25/04A61M25/1011A61M2210/1089
    • Several embodiments of an endourethral prosthesis, assembly, and attendant methods are provided for patients presenting with lower urinary tract symptoms (LUTS) or urinary retention. The endourethral prosthesis includes a reversibly expandable element disposed circumferentially about, and longitudinally along a tubular member adapted to receive urine. The tubular member is positionable within a lower urinary tract such that the reversibly expandable element operatively engages a structure of the lower urinary tract so as to prevent migration of the prosthesis so positioned. The reversibly expandible element is in non-reversible fluid communication with the tubular element for selective expansion thereof, the reversibly expandible element is further operatively engagable so as to discharge fluid non-reversibly received from the tubular member exterior to same.
    • 为具有较低尿路症状(LUTS)或尿潴留的患者提供内尿道假体,组装和伴随方法的若干实施例。 内尿道假体包括可逆地扩张的元件,其沿着适于接收尿液的管状构件周向地纵向设置。 管状构件可定位在下尿路内,使得可逆扩张的元件可操作地接合下尿道的结构,以便防止如此定位的假体的移动。 可逆膨胀元件与管状元件不可逆地流体连通,用于其选择性膨胀,可逆膨胀元件进一步可操作地接合,从而将外部不可逆地从管状构件接收的流体排出到外部。