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1.发明授权公开(公告)号：US08052608B2
公开(公告)日：2011-11-08
申请号：US11986164
申请日：2007-11-20
IPC分类号： A61B8/00
CPC分类号： A61B8/12 , A61B5/0031 , A61B8/06 , A61B8/445 , A61B8/4483 , A61B8/56 , A61B2560/0214 , A61B2560/0219 , G01F1/663 , G01S7/5208 , G01S15/8913 , G01S15/8918 , G01S15/8979
摘要： Transducers to measure fluid flow using Doppler ultrasound that are suitable for integrating into or connecting to intravascular devices are disclosed. These transducers meet the requirement for long, thin, flexible transducers, and consist of one or more diffraction-grating transducers, with or without non-diffraction-grating transducers. An exemplary configuration of the transducers utilizes the diffraction caused by narrow transducers to produce beam overlap for Doppler detection of moving blood, and stripline transmission lines are used to bring energy to and receive energy from the transducers and may carry the disclosed transducer configurations as well as carry signals into and out of the blood vessels.
摘要翻译： 公开了使用多普勒超声测量流体流量的传感器，其适用于整合入或连接到血管内装置。 这些传感器满足长，薄，灵活的换能器的要求，并且由一个或多个衍射光栅换能器组成，具有或不具有非衍射光栅换能器。 换能器的示例性配置利用由窄换能器引起的衍射来产生用于移动血液的多普勒检测的束重叠，并且使用带状线传输线来将能量传递给能量并从换能器接收能量，并且可以承载所公开的换能器构造以及 携带信号进出血管。
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公开(公告)号：US20090251028A1
公开(公告)日：2009-10-08
申请号：US12384412
申请日：2009-04-03
申请人： David Vilkomerson
发明人： David Vilkomerson
CPC分类号： A61B8/12 , A61B5/1076 , A61B8/06 , A61B8/445 , A61B8/4488 , B06B1/06 , Y10T29/42
摘要： A dual spiral transducer and method of manufacture of same is disclosed. In one aspect, the transducer comprises a central rod, a first spiral piezoelectric electrode wrapped around a circumference of the rod, the electrode being advanced around the rod at a determined angle determined based on a length of a single complete turn around the rod and a diameter of the rod and a second spiral piezoelectric electrode wrapped around the circumference of the rod, the second spiral electrode being electrically isolated, and offset, from the first spiral electrode by a known distance. A second set of spiral electrodes can be integrated into the structure so that both transmission and reception of signals is feasible.
摘要翻译： 公开了一种双螺旋换能器及其制造方法。 在一个方面，换能器包括中心杆，缠绕在杆的圆周上的第一螺旋压电电极，电极以围绕杆的单个完整回转的长度确定的确定角度围绕杆前进，并且 所述棒的直径和围绕所述杆的圆周缠绕的第二螺旋压电电极，所述第二螺旋电极被电隔离并且从所述第一螺旋电极偏移已知距离。 可以将第二组螺旋电极集成到结构中，使得信号的发送和接收都是可行的。
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3.发明申请公开(公告)号：US20070167783A1
公开(公告)日：2007-07-19
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。
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公开(公告)号：US08564177B2
公开(公告)日：2013-10-22
申请号：US13593565
申请日：2012-08-24
IPC分类号： B06B1/06
CPC分类号： B06B1/067 , A61B8/4483 , B06B1/0688
摘要： Matching layers improve the performance of ultrasonic transducers. Such layers have traditionally required significant effort and expense to be added to ultrasonic transducers. The present invention discloses a method of producing ultrasonic transducers with a matching layer, specifically for ultrasonic transducers utilizing piezopolymer transducer materials. Rather than the conventional method of forming the piezopolymer on a substrate and then attaching a matching layer through which the transducer emits its ultrasound energy, we teach depositing the piezopolymer on a substrate that also serves as a matching layer through which the ultrasound is emitted. Methods of how to select materials and modify their ultrasonic characteristics are also discussed.
摘要翻译： 匹配层提高超声波换能器的性能。 这些层传统上需要大量的努力和费用才能添加到超声换能器中。 本发明公开了一种制造具有匹配层的超声波换能器的方法，特别涉及使用压电聚合物换能器材料的超声换能器。 而不是在基片上形成压电聚合物的常规方法，然后附加换能器通过该匹配层发射其超声波能量的匹配层，我们教导将压电聚合物沉积在也用作发射超声波的匹配层的基底上。 还讨论了如何选择材料和修改其超声波特性的方法。
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公开(公告)号：US07902722B2
公开(公告)日：2011-03-08
申请号：US12384412
申请日：2009-04-03
申请人： David Vilkomerson
发明人： David Vilkomerson
CPC分类号： A61B8/12 , A61B5/1076 , A61B8/06 , A61B8/445 , A61B8/4488 , B06B1/06 , Y10T29/42
摘要： A dual spiral transducer and method of manufacture of same is disclosed. In one aspect, the transducer comprises a central rod, a first spiral piezoelectric electrode wrapped around a circumference of the rod, the electrode being advanced around the rod at a determined angle determined based on a length of a single complete turn around the rod and a diameter of the rod and a second spiral piezoelectric electrode wrapped around the circumference of the rod, the second spiral electrode being electrically isolated, and offset, from the first spiral electrode by a known distance. A second set of spiral electrodes can be integrated into the structure so that both transmission and reception of signals is feasible.
摘要翻译： 公开了一种双螺旋换能器及其制造方法。 在一个方面，换能器包括中心杆，缠绕在杆的圆周上的第一螺旋压电电极，电极以围绕杆的单个完整回转的长度确定的确定角度围绕杆前进，并且 所述棒的直径和围绕所述杆的圆周缠绕的第二螺旋压电电极，所述第二螺旋电极被电隔离并且从所述第一螺旋电极偏移已知距离。 可以将第二组螺旋电极集成到结构中，使得信号的发送和接收都是可行的。
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公开(公告)号：US5669388A
公开(公告)日：1997-09-23
申请号：US699228
申请日：1996-08-19
申请人： David Vilkomerson
发明人： David Vilkomerson
CPC分类号： A61B8/06 , A61B8/0858 , A61B5/489
摘要： An apparatus and method is disclosed for locating a desired blood vessel within a predetermined volume of tissue. The apparatus and method includes a plurality of transducers which are operable to be positioned over the tissue. Each of the transducers when driven produces an output signal indicative of a characteristic of a blood vessel located under each transducer. A control system for selectively driving the transducers in order to produce a plurality of output signals and for comparing the plurality of output signals in order to determine the output signal having the largest amplitude which corresponds to the transducer positioned over the desired blood vessel.
摘要翻译： 公开了一种用于在预定体积的组织内定位所需血管的装置和方法。 该装置和方法包括可操作以定位在组织上方的多个换能器。 当被驱动时，每个换能器产生指示位于每个换能器下方的血管的特征的输出信号。 一种用于选择性地驱动换能器以产生多个输出信号并用于比较多个输出信号以便确定具有最大振幅的输出信号的控制系统，该输出信号对应于位于期望血管上的换能器。
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公开(公告)号：US08852110B2
公开(公告)日：2014-10-07
申请号：US13358507
申请日：2012-01-25
申请人： David Vilkomerson
发明人： David Vilkomerson
IPC分类号： A61B8/00 , A61B8/06 , G01F1/66 , G01N29/036 , G01F1/74 , G01N29/024 , G01S15/89 , A61B8/08
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。
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8.发明授权公开(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。
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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
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。
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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。
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