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91. 发明授权

US5070733A Photoacoustic imaging method 失效
标题翻译：光声成像方法
公开(公告)号：US5070733A
公开(公告)日：1991-12-10
申请号：US409313
申请日：1989-09-19
申请人： Yoshihiko Nagata , Toshio Koda
发明人： Yoshihiko Nagata , Toshio Koda
IPC分类号： G01N29/00 , G01N21/00 , G01N29/06 , G01N29/22 , G01N29/24 , G01N29/34 , G01N29/46 , G01S5/24 , G03B42/06
CPC分类号： G01N29/346 , G01N29/0609 , G01N29/221 , G01N29/2418 , G01N29/46 , G01N2291/012 , G01N2291/015 , G01N2291/02854 , G01N2291/104
摘要： A photoacoustic imaging method comprises the steps of using modulated light of two different modulation frequencies to illuminate an object to be observed, so that an image of only a region of a specified depth within the object is obtained based on the difference between two photoacoustic signals separately detected by an acoustic sensor.
摘要翻译：光声成像方法包括以下步骤：使用两种不同调制频率的调制光来照亮要观察的物体，从而基于两个光声信号之间的差异仅获得对象内指定深度的区域的图像由声学传感器检测。

92. 发明授权

US4815047A Synthetic focus annular array transducer 失效
标题翻译：合成焦点环形阵列换能器
公开(公告)号：US4815047A
公开(公告)日：1989-03-21
申请号：US876966
申请日：1986-06-20
申请人： John T. Hart
发明人： John T. Hart
IPC分类号： A61B8/14 , G01S7/52 , G01S15/89 , G10K11/34 , H04R3/00 , G03B42/06
CPC分类号： G01S15/8922 , G01S7/52046 , G10K11/341
摘要： Ultrasound imaging apparatus having an array of electro-acoustic transducer rings, means for exciting said transducer rings in sequence so as to cause them to transmit successive pulses of pressure waves along a path at intervals at least equal to the time of transit of the pressure waves to a maximum range and back to the array, dynamically controlled delays respectively coupled to each transducer ring that bring the electrical signals the transducers supply in response to pressure of waves of each pulse that are reflected along a given range into reasonable phase coherence, processing means coupled to the delays so as to provide a composite signal, and a summing memory coupled to receive the composite signal.

93. 发明授权

US4733562A Method and apparatus for ultrasonic scanning of an object 失效
标题翻译：用于物体超声波扫描的方法和装置
公开(公告)号：US4733562A
公开(公告)日：1988-03-29
申请号：US884590
申请日：1986-07-11
申请人： Ulrich Saugeon
发明人： Ulrich Saugeon
IPC分类号： A61B8/14 , G01S7/52 , G01S15/89 , G03B42/06 , G10K11/34 , G01N29/04
CPC分类号： G01S15/8927 , G01S15/8918 , G01S7/5206 , G01S7/52085 , G10K11/345
摘要： An ultrasonic array having a number of juxtaposed transducer elements is used for imaging. The reception aperture of the array is divided into individual sub-arrays. Each of these sub-arrays receives, after emission of an ultrasonic signal correlated with it into the object, echo signals reflected therefrom. The echo signals received by the respective sub-array and which are reflected from a common focal point are added up to form a sum signal. For this purpose, at least for some of the transducer elements the delivered output signals are time-delayed according to given patterns. This procedure is repeated for various points along each scan line. The sequentially obtained sum signals are superimposed at each point of the scan line to form a received signal. With this line-oriented method, the same processing channels (time-delays) can be used several times, i.e. successively for each sub-array. This leads to cost-effective production.
摘要翻译：具有多个并置的换能器元件的超声波阵列用于成像。阵列的接收孔径被分成单独的子阵列。这些子阵列中的每一个在与其相关的超声信号发射到物体之后接收从其反射的回波信号。由相应子阵列接收并从公共焦点反射的回波信号相加，以形成和信号。为此目的，至少对于一些换能器元件，传递的输出信号根据给定的模式是时间延迟的。沿着每个扫描线的各个点重复该过程。顺序获得的和信号叠加在扫描线的每个点处以形成接收信号。利用这种面向行的方法，可以多次使用相同的处理通道（时间延迟），即每个子阵列连续地使用。这导致成本效益的生产。

94. 发明授权

US2912853A Ultrasonic transmission testing method 失效
标题翻译：超声波传输测试方法
公开(公告)号：US2912853A
公开(公告)日：1959-11-17
申请号：US50203855
申请日：1955-04-18
申请人： GEN MOTORS CORP
发明人： HANYSZ EUGENE A
IPC分类号： G01N29/04 , G01N29/07 , G01N29/24 , G03B42/06
CPC分类号： G01N29/2456 , G01N29/07 , G01N2291/0426 , G01N2291/048 , G01N2291/265

95. 发明授权

US11307297B2 Method and device for ultrasonic imaging by synthetic focusing 有权
公开(公告)号：US11307297B2
公开(公告)日：2022-04-19
申请号：US15526305
申请日：2015-09-06
申请人： TSINGHUA UNIVERSITY
发明人： Jianwen Luo , Jing Liu , Qiong He
IPC分类号： G03B42/06 , G01S7/52 , G01S15/89 , A61B8/14 , A61B8/08 , G06T11/00
摘要： Provided are a method and device for ultrasonic imaging by synthetic focusing. The method comprises: exciting a plurality of matrix elements of an ultrasonic probe to transmit plane waves many times, wherein transmitting apodizations at the time of every transmission of the plane waves by the plurality of matrix elements correspond to the respective lines in a measurement matrix in which elements are randomly distributed; after every transmission of the plane waves, exciting all the matrix elements of the ultrasonic probe to receive echo signals, in order to obtain channel data; recovering a synthetic focusing channel data set by use of a compressed sensing reconstruction algorithm according to a channel data set and the measurement matrix; and subjecting the synthetic focusing channel data set to beamforming so as to generate an ultrasonic image.

96. 发明申请

US20200297320A1 DETERMINING MATERIAL STIFFNESS USING MULTIPLE APERTURE ULTRASOUND 审中-公开
公开(公告)号：US20200297320A1
公开(公告)日：2020-09-24
申请号：US16897116
申请日：2020-06-09
申请人： MAUI IMAGING, INC.
发明人： Donald F. SPECHT , Kenneth D. BREWER
IPC分类号： A61B8/08 , A61B8/14 , A61B8/00 , G03B42/06 , G01S7/52 , G01S15/89
摘要： Changes in tissue stiffness have long been associated with disease. Systems and methods for determining the stiffness of tissues using ultrasonography may include a device for inducing a propagating shear wave in tissue and tracking the speed of propagation, which is directly related to tissue stiffness and density. The speed of a propagating shear wave may be detected by imaging a tissue at a high frame rate and detecting the propagating wave as a perturbance in successive image frames relative to a baseline image of the tissue in an undisturbed state. In some embodiments, sufficiently high frame rates may be achieved by using a ping-based ultrasound imaging technique in which unfocused omni-directional pings are transmitted (in an imaging plane or in a hemisphere) into a region of interest. Receiving echoes of the omnidirectional pings with multiple receive apertures allows for substantially improved lateral resolution.

97. 发明授权

US10331025B2 Acoustic imaging of objects in optically opaque fluids 有权
公开(公告)号：US10331025B2
公开(公告)日：2019-06-25
申请号：US14062731
申请日：2013-10-24
申请人： LOS ALAMOS NATIONAL SECURITY, LLC
发明人： Dipen N. Sinha , Curtis F. Osterhoudt , Cristian Pantea
IPC分类号： G03B42/06 , G01S15/89
摘要： The present invention is a method and an apparatus that can image objects immersed in optically opaque fluids using ultrasound in a confined space and in a harsh environment. If the fluid is not highly attenuating at frequencies above 1 MHz, where commercial ultrasound scanners are available, such scanners can be adapted for imaging in these fluids. In the case of highly attenuating fluids, such as drilling mud, then a low frequency collimated sound source is used.

98. 发明授权

US10156549B2 Method and system for examining the interior material of an object, such as a pipeline or a human body, from a surface of the object using ultrasound 有权
公开(公告)号：US10156549B2
公开(公告)日：2018-12-18
申请号：US14991013
申请日：2016-01-08
申请人： Rontgen Technische Dienst B.V.
发明人： Marcel Meijlom Molenaar , Steven Ferdinand Kleijer
IPC分类号： G01S15/00 , G01N29/06 , G03B42/06 , G01S15/89 , A61B8/00 , G01N29/26 , G01N29/36 , G01N29/44 , G01N29/52 , A61B8/08
摘要： A method and system are described for examining the interior material of an object from a surface of an object using ultrasound having a frequency of at least 100 kHz. The method comprises the step of transmitting at least a first ultrasound signal by a first ultrasound transmitter of a first number of ultrasound transmitters to the interior material of the object for forming a first image in order to determine, according for example to the principle of inverse wave field extrapolation, where in the interior material of the object reflections and/or diffractions occur. Reflections and/or diffractions of the first ultrasound signal from the interior material of the object are received using a second number of ultrasound receivers which are acoustically coupled to the surface of the object at positions which are distributed in at least one dimension of the surface of the object. With each of the second number of ultrasound receivers, a receiving signal is generated from the received reflections and/or diffractions of the first ultrasound signal from the interior material of the object, and each of the receiving signals generated by one of the ultrasound receivers is processed separately into a separate dataset. The separate datasets of all the ultrasound receivers are combined to the first image.

99. 发明申请

US20180348624A1 Three-Dimensional (3-D) Imaging with a Row-Column Addressed (RCA) Transducer Array using Synthetic Aperture Sequential Beamforming (SASB) 审中-公开
公开(公告)号：US20180348624A1
公开(公告)日：2018-12-06
申请号：US15609666
申请日：2017-05-31
申请人： B-K MEDICAL APS
发明人： Jorgen Arendt Jensen , Hamed Bouzari , Matthias Bo Stuart
IPC分类号： G03B42/06 , G01S15/89 , G01S7/52 , G10K11/34
摘要： An ultrasound imaging system includes a probe and a console. The probe includes a row-column addressed transducer array, first beamformer configured to beamform echo signals received by the row-column addressed transducer array and produce a set of image planes for each emission with a single focus in both transmit and receive, and a first communication interface. The console includes a second complementary communication interface and a second beamformer configured to beamform the focused set of image planes and produce a three-dimensional volume of ultrasound data.

100. 发明授权

US09848852B2 System and method for focusing ultrasound image data 有权
公开(公告)号：US09848852B2
公开(公告)日：2017-12-26
申请号：US15133072
申请日：2016-04-19
申请人： Volcano Corporation
发明人： Andrew Hancock
IPC分类号： G03B42/06 , A61B8/08 , A61B8/12 , A61B8/00 , G01S15/89 , G01S7/52
CPC分类号： A61B8/5207 , A61B8/0891 , A61B8/12 , A61B8/445 , A61B8/4488 , A61B8/4494 , A61B8/56 , G01S7/52034 , G01S15/8927 , G01S15/8997
摘要： Sold-state intravascular ultrasound (IVUS) imaging devices, systems, and methods are provided. Some embodiments of the present disclosure are particularly directed to flexible and efficient systems for focusing IVUS echo data received from transducers including polymer piezoelectric micro-machined ultrasound transducers (PMUTs). In one embodiment, an ultrasound processing system includes first and second aperture engines coupled to an engine controller, which provides aperture assignments to the first and second aperture engines. The aperture engines receive the assignment and a portion of A-line data, perform one or more focusing process on the received A-line data, and produce focused data in accordance with the aperture assignment. In some embodiments, once an aperture engine has produced focused data, the engine controller clears the aperture engine and assigns another aperture.

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