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91. 发明申请

US20100016719A1 ADAPTIVE REGULATION OF ACOUSTIC OUTPUT POWER IN MEDICAL ULTRASOUND IMAGING 审中-公开
标题翻译：医学超声成像中声学输出功率的自适应调节
公开(公告)号：US20100016719A1
公开(公告)日：2010-01-21
申请号：US12174514
申请日：2008-07-16
申请人： Paul Freiburger , Leixiang Fan , John Dennis
发明人： Paul Freiburger , Leixiang Fan , John Dennis
IPC分类号： A61B8/00
CPC分类号： A61B8/00 , A61B8/485 , G01S7/5202 , G01S7/52036 , G01S7/52096
摘要： Acoustic output power is adaptively regulated in medical diagnostic ultrasound imaging. Given transmit settings, the acoustic power and/or another setting may be altered to avoid violating a limit set by regulation. The limit is based, at least in part, on an assumed attenuation. By measuring the attenuation, such as by identifying a type of tissue, the power and/or limit may be altered or adapt. By accounting for the attenuation in the region to be scanned, a greater output power may be possible while still providing the same level of safety.
摘要翻译：声学输出功率在医学诊断超声成像中自适应调节。给定发送设置，可以改变声功率和/或另一设置以避免违反通过调节设置的限制。该限制至少部分地基于假定的衰减。通过测量衰减，例如通过识别组织的类型，可以改变或适应功率和/或限制。通过考虑要扫描的区域中的衰减，在仍然提供相同的安全级别的情况下，可以实现更大的输出功率。

92. 发明申请

US20090306512A1 Coherent Image Formation for Dynamic Transmit Beamformation 有权
标题翻译：用于动态发射信号的相干图像形成
公开(公告)号：US20090306512A1
公开(公告)日：2009-12-10
申请号：US12477783
申请日：2009-06-03
申请人： Rickard C. Loftman , Kutay F. Ustuner , Charles E. Bradley
发明人： Rickard C. Loftman , Kutay F. Ustuner , Charles E. Bradley
IPC分类号： A61B8/14
CPC分类号： G01S7/52046 , G01S7/5202 , G01S7/5209 , G01S7/52095 , G10K11/346
摘要： Retrospective dynamic transmit beamformation is provided in medical ultrasound imaging. Using parallel receive beamformation, sets of data representing locations in at least a common field of view are obtained, each set in response to a transmit with a spatially distinct phase front. The common field of view receive data are time aligned and amplitude weighted for retrospective transmit focusing and retrospective transmit apodization, respectively. A time offset, such as of a cycle or more in some cases, is applied to the receive data for retrospective transmit focusing. The offset is selected to emulate shifting the transmit delay profile to be tangentially intersecting with the dynamic receive delay profile for each location which is the desired transmit delay profile. A weight is applied to the receive data for retrospective transmit apodization. The weight is selected based on the desired transmit apodization profile. The offset and weighted data representing a same location from different transmit events is coherently combined. The number of sets of data offset, weighted and combined may vary as a function of depth for dynamic transmit beamformation.
摘要翻译：在医学超声成像中提供回溯动态发射波束形成。使用并行接收波束形成，获得在至少公共视场中表示位置的数据集合，每个集合响应于具有空间上不同相位前沿的传输。对于追溯发射聚焦和追溯发射变迹，共同视野接收数据分别对时间对齐和幅度加权。在一些情况下，例如周期或更多的时间偏移被应用于用于追溯发射聚焦的接收数据。选择该偏移以模拟将发射延迟分布移动为与期望的发射延迟分布的每个位置的动态接收延迟分布切线相交。将加权应用于接收数据用于追溯发射变迹。基于所需的发射变迹轮廓来选择权重。表示来自不同发送事件的相同位置的偏移和加权数据被一致地组合。数据偏移量，加权和组合的数量可以随动态传输波束形成的深度而变化。

93. 发明申请

US20080021323A1 Ultrasound diagnosis apparatus 有权
标题翻译：超声诊断仪
公开(公告)号：US20080021323A1
公开(公告)日：2008-01-24
申请号：US11826249
申请日：2007-07-13
申请人： Jing-Wen Tsao , Takayuki Ohnishi , Kazuhiro Amino , Masayuki Kosuge
发明人： Jing-Wen Tsao , Takayuki Ohnishi , Kazuhiro Amino , Masayuki Kosuge
IPC分类号： A61B8/13
CPC分类号： G01S7/5202 , G01S7/52046 , G01S15/102
摘要： An ultrasound diagnosis apparatus having a transmission circuit which generates a transmission signal is provided. The transmission signal corresponds to a combined waveform of a trapezoidal waveform and an impulse-shaped waveform (impulse portion). In an example transmission signal, a front slope portion, a flat portion, and a rear slope portion exist in a positive polarity side. The impulse portion has a shape which protrudes from an offset level over a base line into an opposite polarity side. Because the center frequency of the trapezoidal wave form is near the DC component, the trapezoidal wave form can substantially be ignored. The impulse portion has a large amplitude, but because the impulse portion exists over both polarities, there is no need to apply a special high voltage countermeasure for each polarity in designing the transmission circuit. A trapezoidal wave form of an opposite polarity may be added in front of the trapezoidal waveform.
摘要翻译：提供具有产生发送信号的发送电路的超声波诊断装置。发送信号对应于梯形波形和脉冲波形（脉冲部分）的组合波形。在示例性传输信号中，正极侧存在前斜面部分，平坦部分和后倾斜部分。冲击部分具有从基线上的偏移水平突出到相反极性侧的形状。由于梯形波形的中心频率接近直流分量，梯形波形基本上可以忽略不计。脉冲部分具有大的振幅，但由于脉冲部分存在于极性上，所以在设计传输电路时不需要对每个极性应用特殊的高电压对策。相反极性的梯形波形可以添加在梯形波形的前面。

94. 发明申请

US20070016050A1 Medical Doppler ultrasound system for locating and tracking blood flow 有权
标题翻译：用于定位和跟踪血流的医用多普勒超声系统
公开(公告)号：US20070016050A1
公开(公告)日：2007-01-18
申请号：US11152666
申请日：2005-06-13
申请人： Mark Moehring , Mark Curry
发明人： Mark Moehring , Mark Curry
IPC分类号： A61B8/00
CPC分类号： A61B8/488 , A61B5/725 , A61B8/06 , A61B8/0816 , A61B8/4483 , A61B8/4488 , A61B8/4494 , A61B8/461 , A61B8/5223 , A61B8/54 , G01S7/5202 , G01S7/52028 , G01S7/52047 , G01S7/52066 , G01S15/8925 , G01S15/8979 , G01S15/8988
摘要： Systems and methods for processing echo signals in a Doppler ultrasound system from a region of interest. An ultrasound beam is electronically steered to deliver ultrasound to and receive echo signals from a plurality of sample locations in the region of interest. The echo signals for each sample location are processed to extract Doppler shift signals and Doppler shift data representing the Doppler shift signals are generated. The Doppler shift data accumulated for the sample locations can be used to detect the presence of blood flow in the region of interest, and identify the location in the region of interest at which the presence of blood flow is detected. The blood flow can be tracked by updating the location of the detected blood flow in the region of interest. The blood flow can be further monitored by combining the locating and tracking functionality with an m-mode ultrasound image.
摘要翻译：用于在多普勒超声系统中从感兴趣区域处理回波信号的系统和方法。电子控制超声波束以将超声波传送到感兴趣区域中的多个样本位置并从其接收回波信号。处理每个采样位置的回波信号以提取多普勒频移信号，并且生成表示多普勒频移信号的多普勒频移数据。可以使用针对样本位置累积的多普勒频移数据来检测感兴趣区域中血流的存在，并且识别检测到血流存在的感兴趣区域中的位置。可以通过更新感兴趣区域中检测到的血流的位置来跟踪血流量。可以通过将定位和跟踪功能与m模式超声图像组合来进一步监测血流。

95. 发明申请

US20070014190A1 Multi-level pulser for an ultrasound system 审中-公开
标题翻译：用于超声系统的多级脉冲发生器
公开(公告)号：US20070014190A1
公开(公告)日：2007-01-18
申请号：US11181514
申请日：2005-07-14
申请人： Keith Fehl , Yoichi Suzuki
发明人： Keith Fehl , Yoichi Suzuki
IPC分类号： H04B1/02 , A61B8/00
CPC分类号： B06B1/0215 , B06B1/0223 , G01S7/5202 , G01S7/524
摘要： A multi-level pulser for an ultrasound system is provided that receives a reference voltage input signal, a shading signal, and a control signal. The pulser produces an output signal for driving a transducer, with the output signal based on the reference voltage signal, the shading signal, and the control signal. The output signal includes a continuous wave (CW) signal interleaved with a pulse wave (PW) signal. The PW signal may have multiple levels of amplitude.
摘要翻译：提供了一种用于超声系统的多电平脉冲发生器，其接收参考电压输入信号，阴影信号和控制信号。脉冲发生器产生用于驱动换能器的输出信号，输出信号基于参考电压信号，阴影信号和控制信号。输出信号包括与脉冲波（PW）信号交错的连续波（CW）信号。 PW信号可能具有多个幅度电平。

96. 发明申请

US20040254459A1 Method and apparatus for generating a multi-level ultrasound pulse 失效
标题翻译：用于产生多级超声脉冲的方法和装置
公开(公告)号：US20040254459A1
公开(公告)日：2004-12-16
申请号：US10459850
申请日：2003-06-12
发明人： Kjell Kristoffersen , Hans Garmann Torp
IPC分类号： A61B008/00
CPC分类号： B06B1/0215 , A61B8/483 , G01S7/5202
摘要： A method and apparatus for generating ultrasound pulses comprises producing a multi-level pulse sequence including a series of pulses. The series of pulses includes at least three pulses having three different amplitudes, respectively. The amplitudes are at least one of a positive non-zero voltage, a negative non-zero voltage, and an intermediate level voltage. The multi-level pulse sequence may be produced by a switch network having at least three different input voltage levels. The switch network outputs the multi-level pulse sequence at an output node to a transducer within a probe. Echo signals based on the series of pulses are received, and an ultrasound image is produced based on the received echo signals.
摘要翻译：一种用于产生超声脉冲的方法和装置包括产生包括一系列脉冲的多电平脉冲序列。该脉冲串包括分别具有三个不同振幅的至少三个脉冲。幅度是正非零电压，负非零电压和中间电平电压中的至少一个。多电平脉冲序列可以由具有至少三个不同输入电压电平的开关网络产生。开关网络将输出节点处的多电平脉冲序列输出到探头内的换能器。接收基于一系列脉冲的回波信号，并且基于接收到的回波信号产生超声图像。

97. 发明申请

US20040158147A1 Transmit circuit for imaging with ultrasound 有权
标题翻译：用超声波成像的传输电路
公开(公告)号：US20040158147A1
公开(公告)日：2004-08-12
申请号：US10364481
申请日：2003-02-10
申请人： Siemens Medical Solutions USA, Inc.
发明人： Lazar A. Shifrin
IPC分类号： A61B008/00
CPC分类号： G01S7/5202 , G01S7/52017
摘要： A digital-to-analog converter with differential outputs is connected to two difference amplifiers through current splitters. The current splitters isolate the compliance voltage of the digital-to-analog converter so that larger resistances may be used with the difference amplifiers. The larger resistances allow for better signal-to-noise ratio performance of the transmit circuit. The difference amplifiers provide current signals to a push-pull output amplifier through their supply nodes. A single scaling resistor connects between the conventional outputs of two differential amplifiers to reduce mismatching between the positive and negative waveform paths. As a result of the feedback between the two difference amplifiers, a lower level of subharmonic and/or harmonic distortion products is achieved.
摘要翻译：具有差分输出的数模转换器通过分流器连接到两个差分放大器。电流分路器隔离数模转换器的符合电压，以便差分放大器可以使用更大的电阻。较大的电阻允许发射电路的更好的信噪比性能。差分放大器通过其供电节点向推挽输出放大器提供电流信号。单个缩放电阻连接在两个差分放大器的常规输出之间，以减少正和负波形路径之间的失配。作为两个差分放大器之间的反馈的结果，实现了较低水平的次谐波和/或谐波失真产物。

98. 发明申请

US20040002656A1 Multi-dimensional transducer arrays and method of manufacture 有权
标题翻译：多尺寸换能器阵列及其制造方法
公开(公告)号：US20040002656A1
公开(公告)日：2004-01-01
申请号：US10184785
申请日：2002-06-27
申请人： Siemens Medical Solutions USA, Inc.
发明人： Todor Sheljaskow , Grazyna Palczewska , Stephen C. Englund , Thomas G. Houck , Gregg W. Frey , Ron Ho , Sevig Ayter , Xiaocong Guo
IPC分类号： A61B008/14
CPC分类号： G10K11/346 , A61B8/483 , B06B1/0622 , G01S7/003 , G01S7/5202 , G01S7/5208 , G01S15/8925 , G01S15/8961
摘要： Transducer arrays and methods of manufacturing the transducer arrays are provided. A multi-dimensional transducer array is provided where the element-to-element spacing or pitch along one dimension is less than the element spacing or pitch along a second dimension. For example, the element pitch along an azimuth dimension is null of the element pitch along an elevation dimension. The multi-dimensional transducer array with the same or different pitch is manufactured from a plurality of modules. Each of the modules are separately diced and then aligned and combined. Separate dicing allows for individual testing of modules prior to assembly as a transducer array. Elements of a transducer array are used for isolating a transmit channel from a receive channel. Rather than a sheet of electrode acting as a ground plane common to a plurality of elements, separate signal lines or traces are provided individually for each element on opposite sides of each element. A transmit channel may connect to one electrode on an element, and the receive channel may connect to an opposite electrode on the element. The separate signal traces on each element allow the element to isolate the transmit and receive paths. A multi-dimensional array is provided for time division multiplex processing. A probe houses the multi-dimensional array and a multiplexer. The multi-dimensional array has a different distribution of elements along different dimensions, such as a 1.5 D array, a split bullet array, a multilayer linear array, or an I beam or nullbeam array formed from two or more linear arrays. The multiplexer enables operation of complex arrays for various ultrasound processes.
摘要翻译：提供了传感器阵列和制造换能器阵列的方法。提供了多维换能器阵列，其中沿着一个维度的元件间元件间距或间距小于沿着第二维度的元件间距或间距。例如，沿着方位尺寸的元件间距是沿着仰角尺寸的元件间距的1/2。具有相同或不同间距的多维换能器阵列由多个模块制造。每个模块分开切割，然后对齐并组合。单独的切割允许在组装之前对模块进行单独测试作为换能器阵列。换能器阵列的元件用于隔离发射通道与接收通道。不是作为多个元件共有的接地平面的电极片而不是单独地为每个元件的相对侧上的每个元件提供单独的信号线或迹线。传输通道可以连接到元件上的一个电极，并且接收通道可以连接到元件上的相对电极。每个元件上的单独信号迹线允许元件隔离发送和接收路径。提供了用于时分复用处理的多维阵列。探头容纳多维阵列和多路复用器。多维阵列具有沿着不同维度的元素的不同分布，例如由两个或更多个线性阵列形成的1.5D阵列，分割子弹阵列，多层线性阵列或I波束或+波束阵列。多路复用器使得能够对各种超声波处理进行复杂阵列的操作

99. 发明申请

US20040002652A1 Receive circuit for ultrasound imaging 有权
标题翻译：超声成像接收电路
公开(公告)号：US20040002652A1
公开(公告)日：2004-01-01
申请号：US10184461
申请日：2002-06-27
申请人： Siemens Medical Solutions USA, Inc.
发明人： Robert N. Phelps , David A. Petersen , John C. Lazenby , Robert P. Hunt
IPC分类号： A61B008/00
CPC分类号： G01S7/5208 , A61B8/483 , B06B1/0622 , G01S7/003 , G01S7/5202 , G01S15/8925 , G01S15/8961 , G10K11/346
摘要： Methods and systems for receiving different types of signal formats from different ultrasound transducers are provided. A base unit of an ultrasound system includes a connector and receiver circuit for connecting with one of multiple different types of transducers. For example, a conventional transducer providing analog information associated with a single element on one receive channel is connected with the connector and receiver circuit. Alternatively, a transducer outputting time division multiplex or other multiplex information representing multiple transducer elements is connected with the connector and receiver circuit. The receiver circuit processes the received information differently depending on the data format. For example, the preamplifier impedance or gain is different for single element signals versus time division multiplex signals. As another example, a low pass filter bandwidth is larger for time division multiplex signals than for signals representing a single element. Receive circuits with an analog-to-digital converter positioned prior to a digital demultiplexer are also included for use with multiplexed data formats. Time division multiplex or other multiplex signals from a transducer array are converted to a digital format prior to demultiplexing. Methods and systems for adapting multiplexing or processing of multiplexed signals are also provided. A test signal or ultrasound signals are transmitted from a transducer to the receiver circuit and analyzed. The multiplexer of the transducer is synchronized with an analog digital converter with selectable delays responsive to the analysis. Coefficients or other filter characteristics of a digital equalizer are selected as a function of the analysis.
摘要翻译：提供了用于从不同超声换能器接收不同类型的信号格式的方法和系统。超声系统的基本单元包括用于与多种不同类型的换能器之一连接的连接器和接收器电路。例如，提供与一个接收通道上的单个元件相关联的模拟信息的常规换能器与连接器和接收器电路连接。或者，输出时分复用的换能器或表示多个换能器元件的其他多路复用信息与连接器和接收器电路连接。接收机电路根据数据格式不同地处理接收到的信息。例如，对于单个元件信号与时分复用信号，前置放大器的阻抗或增益是不同的。作为另一示例，时分多路复用信号的低通滤波器带宽比表示单个元件的信号更大。数字多路复用器之前的模数转换器的接收电路也包括在复用数据格式中。来自换能器阵列的时分复用或其它多路复用信号在解复用之前被转换为数字格式。还提供了用于适配多路复用信号的复用或处理的方法和系统。测试信号或超声信号从换能器传输到接收器电路并进行分析。传感器的多路复用器与模拟数字转换器同步，具有响应分析的可选延迟。作为分析的函数选择数字均衡器的系数或其他滤波器特性。

100. 发明授权

US06669637B2 Parametric transmit waveform generator for medical ultrasound imaging system 有权
标题翻译：用于医学超声成像系统的参数发射波形发生器
公开(公告)号：US06669637B2
公开(公告)日：2003-12-30
申请号：US10337164
申请日：2003-01-06
申请人： Albert Gee
发明人： Albert Gee
IPC分类号： A61B800
CPC分类号： B06B1/0215 , G01S7/5202 , G01S7/52046 , G01S15/8915
摘要： A medical diagnostic ultrasonic imaging system includes a transmit waveform generator that uses stored parameters to completely define an arbitrarily complex transmit waveform. Preferably, the stored parameters define an envelope function and a modulation function in a piecewise fashion using a number of sets of quadratic parameters. These quadratic parameters are used to calculate the desired envelope function and modulation function in the log domain, and the envelope and modulation functions are combined in the log domain and then converted to the linear domain. Multiple separate transmit waveforms may be combined in a single channel, and individual channels may be combined prior to application to the transducer elements.
摘要翻译：医疗诊断超声成像系统包括使用存储参数来完全定义任意复杂的发射波形的发射波形发生器。优选地，存储的参数使用多个二次参数集合以分段方式定义包络函数和调制函数。这些二次参数用于计算对数域中期望的包络函数和调制函数，并将包络和调制函数组合在对数域中，然后转换为线性域。多个单独的发射波形可以组合在单个信道中，并且可以在应用于换能器元件之前组合各个信道。

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