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公开(公告)号：US4570488A
公开(公告)日：1986-02-18
申请号：US618232
申请日：1984-06-07
申请人： Hirohide Miwa , Hajime Hayashi , Takai Shimura , Tadahiko Yanashima , Kenji Kawabe , Atsuo Iida
发明人： Hirohide Miwa , Hajime Hayashi , Takai Shimura , Tadahiko Yanashima , Kenji Kawabe , Atsuo Iida
CPC分类号： G10K11/345 , G01N29/262 , G01S7/52063 , G10K11/26 , A61B8/4281 , Y10S128/916
摘要： An ultrasonic sector-scan probe comprises at least an array having a plurality of ultrasonic transducer segments, a window for transmitting and receiving ultrasonic waves and an ultrasonic wave propagation medium filled in a front space between the array and the window. A group of the ultrasonic transducer segments are selectively driven as an aperture and ultrasonic waves emitted therefrom are converged into a beam for transmission and reception. By partly or entirely changing the segments in the group with the ones outside the group the scan line is shifted to a new angle, and a member under test contacted with the window on the outside thereof is sector-scanned by the ultrasonic beam. The array is arranged so that scanning lines of the groups intersect at one point in the window or in its vicinity for sector scan. And an acoustic lens is provided in the window or in its vicinity so that the ultrasonic beam may be converged almost over the measuring depth range of the member under test with/without phase control of the segments in the group. Furthermore, the array is arranged multidimensionally or in plural linear arrays so that the scanning lines of the groups intersect substantially at one point in the window or in its vicinity for sector scan, thereby performing sector scan of at least two sections and/or three-dimensional sector scan.
摘要翻译： 超声扇形扫描探头至少包括具有多个超声换能器段的阵列，用于发射和接收超声波的窗口以及填充在阵列和窗口之间的前部空间中的超声波传播介质。 一组超声波换能器段被选择性地作为孔径驱动，并且从其发射的超声波被会聚成用于发射和接收的波束。 通过部分地或完全地将组中的段改变为组外部的段，扫描线被移动到新的角度，并且与外部的窗口接触的成员被超声波束扇区扫描。 阵列被布置成使得组的扫描线在窗口中的一个点或其附近相交用于扇区扫描。 并且在窗口或其附近设置声透镜，使得超声波束可以在组内的片段的相位控制的情况下几乎在待测试部件的测量深度范围内会聚。 此外，阵列被多维地或多个线性阵列布置，使得组的扫描线基本上在窗口中的一个点或其附近用于扇区扫描，从而执行至少两个部分和/或三维部分的扇区扫描， 三维扇区扫描。
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公开(公告)号：US4580451A
公开(公告)日：1986-04-08
申请号：US735300
申请日：1985-05-17
申请人： Hirohide Miwa , Hajime Hayashi , Takaki Shimura , Tadahiko Yanashima , Kenji Kawabe , Atsuo Iida
发明人： Hirohide Miwa , Hajime Hayashi , Takaki Shimura , Tadahiko Yanashima , Kenji Kawabe , Atsuo Iida
CPC分类号： G10K11/345 , G01N29/262 , G01S7/52063 , G10K11/26 , A61B8/4281 , Y10S128/916
摘要： An ultrasonic sector-scan probe comprises at least an array having a plurality of ultrasonic transducer segments, a window for transmitting and receiving ultrasonic waves and an ultrasonic wave propagation medium filled in a front space between the array and the window. A group of the ultrasonic transducer segments are selectively driven as an aperture and ultrasonic waves emitted therefrom are converged into a beam for transmission and reception. By partly or entirely changing the segments in the group with the ones outside the group the scan line is shifted to a new angle, and a member under test contacted with the window on the outside thereof is sector-scanned by the ultrasonic beam. The array is arranged so that scanning lines of the groups intersect at one point in the window or in its vicinity for sector scan. An acoustic lens is provided in the window or in its vicinity so that the ultrasonic beam may be converged over the measuring depth range of the member under test with or without phase control of the segments in the group. Furthermore, the array is arranged multidimensionally or in plural linear arrays so that the scanning lines of the groups intersect substantially at one point in the window or in its vicinity for sector scan, thereby performing sector scan of at least two sections and/or three-dimensional sector scan.
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公开(公告)号：US4413520A
公开(公告)日：1983-11-08
申请号：US274160
申请日：1981-06-16
申请人： Keiichi Murakami , Shinichi Amemiya , Junji Miyazaki , Tadahiko Yanashima , Atsuo Iida , Takaki Shimura , Hirohide Miwa , Norio Midorikawa
发明人： Keiichi Murakami , Shinichi Amemiya , Junji Miyazaki , Tadahiko Yanashima , Atsuo Iida , Takaki Shimura , Hirohide Miwa , Norio Midorikawa
CPC分类号： G01S15/8952 , A61B8/13 , G01N29/348 , G01S7/52046 , G10K11/343
摘要： An ultrasonic imaging apparatus comprises transducers for transmitting ultrasonic waves and receiving acoustic. The apparatus also transmits ultrasonic waves of different frequencies simultaneously from a plurality of transducers.The frequency characteristics of the transducers are determined in a manner so as to produce the function of frequency filters. An electric filter is additionally provided for compensation. Thus, crosstalk is eliminated even when the frequency difference between the transmitting ultrasonic waves is kept small.
摘要翻译： 超声波成像装置包括用于发送超声波和接收声音的换能器。 该装置还从多个换能器同时发送不同频率的超声波。 换能器的频率特性以产生频率滤波器功能的方式确定。 另外提供电动过滤器用于补偿。 因此，即使发送超声波之间的频率差保持较小，也会消除串扰。
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4.发明授权Method of displaying stream lines of an inhomogeneous flowing medium and a device therefor 失效显示不均匀流动介质的流线的方法及其装置
公开(公告)号：US4790321A
公开(公告)日：1988-12-13
申请号：US930413
申请日：1986-11-14
CPC分类号： A61B8/06 , A61B8/481 , G01P5/24 , G01S7/52036 , G01S7/52085
摘要： A method and device to display in real time a stream line of an inhomogeneous flowing medium such as blood flow in a heart, is disclosed. The object is scanned several times by ultrasonic beam pulses. Echoes appearing within a predetermined time interval at each point of the object are combined to produce an image of speckles formed by the flow. The process is repeated several times, to obtain the motion of the speckles. Differences between the images of spatially correlated speckles obtained within the time interval, produce the segments of the stream lines. Differences between successive frames or successive lines can be used to produce the speckle and several methods of scanning are disclosed to produce the differences between the images to produce the stream lines.
摘要翻译： 公开了一种实时显示心脏中不均匀流动介质（如血液流动）的流线的方法和装置。 物体通过超声波束脉冲扫描多次。 在物体的每个点处在预定时间间隔内出现的回波被组合以产生由流形成的斑点的图像。 该过程重复几次，以获得斑点的运动。 在时间间隔内获得的空间相关斑点的图像之间的差异产生流线段。 可以使用连续帧或连续行之间的差异来产生斑点，并且公开了几种扫描方法以产生图像之间的差异以产生流线。
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公开(公告)号：US4787395A
公开(公告)日：1988-11-29
申请号：US826704
申请日：1986-02-06
CPC分类号： G01S15/8979 , A61B8/06 , G01S7/52074 , A61B8/486
摘要： A blood flow measuring apparatus provides a two-dimensional blood stream flow velocity distribution diagram which displays a two-dimensional blood stream flow velocity distribution in a region of a living body to be examined and a one-dimensional blood stream flow velocity distribution diagram which displays a one-dimensional blood stream flow velocity distribution in a linear region specified by a line on the examined region with a measuring condition different from the measurement of the two-dimensional blood stream flow velocity distribution. In the present invention, the two-dimensional blood stream flow velocity diagram and the one-dimensional blood stream flow velocity diagram are simultaneously displayed in such a manner that the corresponding portions can be clearly read, and thus the blood stream flow velocity in each portion can be correctly and easily determined.
摘要翻译： 血液流量测量装置提供二维血流流速分布图，其显示要检查的生物体的区域中的二维血流流速分布和显示的一维血流流速分布图 由检测区域上的线规定的线性区域中的一维血流流速分布，其测量条件与二维血流流速分布的测量不同。 在本发明中，二维血流流速图和一维血流流速图以同样的方式同时显示，使得对应部分能够被清楚地读出，从而每个部分中的血流流速 可以正确方便地确定。
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公开(公告)号：US5758649A
公开(公告)日：1998-06-02
申请号：US705608
申请日：1996-08-30
申请人： Nobushi Iwashita , Etsuro Machida , Masahiro Hiruta , Kazuhiro Matsumoto , Yoshitaka Abe , Tadahiko Yanashima , Kenichi Hayakawa
发明人： Nobushi Iwashita , Etsuro Machida , Masahiro Hiruta , Kazuhiro Matsumoto , Yoshitaka Abe , Tadahiko Yanashima , Kenichi Hayakawa
CPC分类号： A61B8/00 , A61B5/002 , A61B8/44 , G01S15/899 , G01S7/52074
摘要： There is provided an ultrasonic diagnostic system in which an ultrasonic probe is detachably connected thereto, and ultrasonic waves are transmitted from the ultrasonic probe into the subject to obtain received signals through receiving the ultrasonic waves reflected within the subject, thereby displaying for a diagnosis an image carrying information based on the received signals, and is also provided an ultrasonic module including a processing circuit for the received signals, the ultrasonic module being used in the ultrasonic diagnostic system. The diagnotics system and the diagnostic module according to the present invention permit the more extensive patients to have an ultrasonic diagnosis, and also permit the operator to have a higher level of computer support. The ultrasonic module is connected through a general-purpose interface to a computer system. An ultrasonic module, which has, as a main element, an analog unit for performing an analog signal processing, is connected to another computer system.
摘要翻译： 提供了一种超声波诊断系统，其中超声波探头可拆卸地连接到超声波探测器，并且超声波从超声波探头传送到被摄体中，以通过接收在被检体内反射的超声波来获得接收信号，从而显示诊断图像 携带基于接收信号的信息，并且还提供了包括用于接收信号的处理电路的超声波模块，超声波模块用于超声诊断系统中。 根据本发明的诊断系统和诊断模块允许更广泛的患者具有超声诊断，并且还允许操作者具有更高水平的计算机支持。 超声波模块通过通用接口连接到计算机系统。 作为主要元件的超声波模块连接到另一个计算机系统，模拟单元用于执行模拟信号处理。
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