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71. 发明专利

JP2002065664A ULTRASONIC DIAGNOSTIC APPARATUS AND PROCESS METHOD OF ULTRASONIC SIGNAL 失效
公开(公告)号：JP2002065664A
公开(公告)日：2002-03-05
申请号：JP2000265992
申请日：2000-08-30
申请人： HITACHI MEDICAL CORP
发明人： MIWA YUICHI , UMEMURA SHINICHIRO , SHINOMURA RYUICHI , BABA HIROTAKA , FUJITA NAOTO
IPC分类号： A61B8/00 , G01S7/52 , G01S15/89
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic diagnostic apparatus that can obtain images of different frequencies. SOLUTION: The ultrasonic diagnostic apparatus is composed of a search unit 1 which is made up of a plurality of elements that transmit ultrasonic waves and receive reflected ultrasonic waves, a digital modulator 2 which digitalizes a plurality of received signals, a first mixing part 10 which multiplies outputs of the digital modulator and first digital reference signals, a first filter 4 which extracts such signals that have specified central frequency from outputs of the first mixing part, a digital delaying part 5 which delays outputs of the first filter, an addition part 6 which adds a plurality of outputs of the digital delaying part, a second mixing part 11 which multiplies outputs of the addition part and the second digital reference signals, an ultrasonic wave detector 11 which detects outputs of the second mixing part, a modulator 8 which modulates the outputs of the ultrasonic wave detector into image signals, and a display device 9 which displays output signals of the modulator 8. This constitution makes it unnecessary to modulate frequency characteristics of the filter parts.

72. 发明专利

JP2002027593A ULTRASONIC PROBE 失效
公开(公告)号：JP2002027593A
公开(公告)日：2002-01-25
申请号：JP2000203698
申请日：2000-07-05
申请人： HITACHI MEDICAL CORP
发明人： OSAWA TAKAYA , SANO HIDEZO , SHINOMURA RYUICHI
IPC分类号： G01N29/24 , A61B8/00 , H04R17/00
摘要： PROBLEM TO BE SOLVED: To pull out the signal lines and ground lines of two-dimensionally arrayed vibrators so that ultrasonic waves radiated to the back part of those vibrators can be prevented from being reflected between the vibrators and backing materials. SOLUTION: At the molding of baking materials 1, signal lines 5 and ground lines 6 are preliminarily stretched around in the hollow parts of jigs 311 and 312 according to the array pitches of two-dimensionally arrayed vibrators, and the melted backing materials are poured into the hollow parts. After the packing materials 1 are hardened, the jigs 311 and 312 are removed, and the backing materials are finished in prescribed dimensions. Then, signal electrodes 2c and ground electrodes 2b of vibrator elements 2 are aligned with the signal lines 5 and ground lines 6 exposed on the edge faces of the backing materials 1, and the vibrator elements 2 are fixed.

73. 发明专利

JP2001286467A ULTRASONIC DIAGNOSTIC APPARATUS 失效
公开(公告)号：JP2001286467A
公开(公告)日：2001-10-16
申请号：JP2000106807
申请日：2000-04-07
申请人： HITACHI MEDICAL CORP
发明人： FUJITA NAOTO , SHINOMURA RYUICHI
IPC分类号： A61B8/00
摘要： PROBLEM TO BE SOLVED: To perform the three-dimensional sector scanning in a small number of delay circuits even with a probe having two-dimensionally arrayed vibrators. SOLUTION: Plural ring vibrators are selected in a concentric circle for the two-dimensionally arrayed vibrators 20, and elements constituting one ring vibrator are connected to a delay circuit so that the same delay time is given to each element. The pattern of selecting the ring vibrators 20 in a concentric circle, including the position of the center, is changed according to the position of the transmission focal point and the direction of the received beam. The direction dynamic focus for slanting the received beam toward the vibrator surface moves the ring vibrators continuously according to the position of the receiving focal point.

74. 发明专利

JPH11169365A ULTRASONOGRAPH 失效
公开(公告)号：JPH11169365A
公开(公告)日：1999-06-29
申请号：JP32837997
申请日：1997-11-28
申请人： HITACHI MEDICAL CORP
发明人： MIWA YUICHI , SHINOMURA RYUICHI , UMEMURA SHINICHIRO
IPC分类号： A61B8/00 , G01S7/52
摘要： PROBLEM TO BE SOLVED: To provide a technology which can control frequency of a digital reference signal in an ultrasonograph wherein a digital circuit is a main body. SOLUTION: In an ultrasonograph which has a probe 101 consisting of a plurality of ultrasonic oscillators for transmitting and receiving ultrasonic signals, a digital conversion means 102 which converts a received signal received by each ultrasonic oscillator into a digital signal, a mixing means 103 multiplying a reference signal to this digital signal, a filtering means 104 extracting only a signal with a specified frequency from the digital signal after multiplying, a digital delaying means 105 providing a delay for putting in order the phase difference on each ultrasonic oscillator to this digital signal after extraction and an adding means 106 adding this digital signal after delaying, and constitutes and displays an ultrasonic image indicated by an examiner from the ultrasonic signal after addition, a frequency control means 107 which makes selectively the frequency of the reference signal variable in accordance with the position of a receiving wave focusing point is provided.

75. 发明专利

JPH09154841A NEEDLE-LIKE ULTRASONIC PROBE 失效
公开(公告)号：JPH09154841A
公开(公告)日：1997-06-17
申请号：JP31656295
申请日：1995-12-05
申请人： HITACHI MEDICAL CORP
发明人： YOKOZAWA KOICHI , SHINOMURA RYUICHI , ISHIKAWA SHIZUO
IPC分类号： A61B8/00 , H04R1/02
摘要： PROBLEM TO BE SOLVED: To increase transmitting receiving gain of an ultrasonic wave, and reduce capacity in a signal conductor inside of a needle by arranging a resonance coil between a transmitting receiving circuit and a converter in a needle- like ultrasonic probe to perform scanning by rotating and slidingly moving the converter. SOLUTION: In a needle-like ultrasonic probe, a partially hollow conductive internal needle 40 whose tip is composed of a paracentesis needle-like electric conductor is rotatably and slidably fitted in a hollow conductive external needle 35, and at least a single converter 10 is arranged on a side surface of its internal needle 40 through an insulator, and when an ultrasonic wave is transmitted and received, at least a part in which the converter 10 is arranged is exposed from the tip of the external needle 35, and is constituted so as to perform scanning by rotating and slidingly moving the converter 10 by a driving device. Electrodes 11 and 12 of the converter 10 are electrically connected by a signal conductor 50 to external electrodes 13 and 14 arranged so as to be insulated from the internal needle 40, and a resonance coil 80 is arranged between the external electrode 14 and a transmitting receiving circuit.

76. 发明专利

JPH06313764A ULTRASONIC SIGNAL PROCESSOR 失效
公开(公告)号：JPH06313764A
公开(公告)日：1994-11-08
申请号：JP22319993
申请日：1993-09-08
申请人： HITACHI MEDICAL CORP
发明人： KATAKURA KAGEYOSHI , MIWA YUICHI , MASUZAWA YUTAKA , SHINOMURA RYUICHI , ISHIKAWA SHIZUO , SATO YUTAKA
IPC分类号： A61B8/00 , G01N29/22 , G01N29/44
摘要： PURPOSE:To improve the effective accuracy of A/D conversion with a simple configuration by using the oversampling method for digital processing of ultrasonic signals and then performing accumulation addition processing after shifting to a low frequency. CONSTITUTION:A plurality of analog reception signals received by a transmitter/ receiver 23 consisting of a group of aligned wave reception element are digitized by a A/D converter and then are mixed with a reference signal, where time is precisely controlled, from a digital reference signal generation circuit 19 and then are converted to low-frequency signals. Then, accumulation addition processing is performed by a digital adder 4 for accumulation addition, thus extracting low-frequency components. Then, the signals which are subjected to accumulation addition are delayed by a digital delay circuit 7 and then signals which are delayed by a digital adder 3 are added, thus phasing the digital signal accurately.

77. 发明专利

JPH0577205B2 失效
公开(公告)号：JPH0577205B2
公开(公告)日：1993-10-26
申请号：JP22360485
申请日：1985-10-09
申请人： HITACHI MEDICAL CORP
发明人： TAKASUGI KAZUO , SHINOMURA RYUICHI , KAMYAMA AKIHIRO
IPC分类号： H03F1/02

78. 发明专利

JP2009006168A Ultrasonic diagnosis device 有权
标题翻译：超声诊断装置
公开(公告)号：JP2009006168A
公开(公告)日：2009-01-15
申请号：JP2008229807
申请日：2008-09-08
申请人： Hitachi Medical Corp , 株式会社日立メディコ
发明人： MIWA YUICHI , SHINOMURA RYUICHI , UMEMURA SHINICHIRO
IPC分类号： A61B8/00 , G01S7/52
CPC分类号： G01S7/52092 , G01S7/52026 , G01S7/52034 , G01S7/52046
摘要： PROBLEM TO BE SOLVED: To provide a technology that freely changes the frequency of a reference signal in a digitized ultrasonic diagnosis device employing frequency shift beamforming method and makes it possible to conduct various high-quality or high-speed imaging.
SOLUTION: Reception signals obtained by an ultrasonic element group disposed in an array are digitized in a sampling cycle higher than a Nyquist frequency of the reception signals, and are mixed with reference signal. The mixed signals are then accumulated in a sampling direction, beamformed and added by wave reception focusing means. The reference signal serially are read out to be used from memory means in such a manner as to correspond to the sampling number of the reception signals. A reference signal train acquired from signals, the frequency of which decreases gradually with a lapse of time, from wave transmission, or a reference signal train obtained alternately from two signals having different frequencies, may be stored in advance in memory means.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供一种使用频移波束形成方法在数字化超声波诊断装置中自由地改变参考信号的频率的技术，并且可以进行各种高质量或高速成像。解决方案：通过设置在阵列中的超声波元件组获得的接收信号以比接收信号的奈奎斯特频率高的采样周期被数字化，并与参考信号混合。然后，混合信号以采样方向累积，波束形成并由波接收聚焦装置相加。串行地读取参考信号以从存储器装置中使用以对应于接收信号的采样数的方式。可以从存储装置中预先存储从频率从具有不同频率的两个信号交替地从波发送或参考信号序列中逐渐减小的频率的信号获取的参考信号序列。版权所有（C）2009，JPO＆INPIT

79. 发明专利

JP2007301086A Ultrasonic diagnostic equipment 有权
标题翻译：超声诊断设备
公开(公告)号：JP2007301086A
公开(公告)日：2007-11-22
申请号：JP2006131524
申请日：2006-05-10
申请人： Hitachi Medical Corp , 株式会社日立メディコ
发明人： TONOMURA AKIKO , OSAKA TAKUJI , MATSUMURA TAKESHI , SHINOMURA RYUICHI , MITSUTAKE TAKESHI
IPC分类号： A61B8/08
摘要： PROBLEM TO BE SOLVED: To provide ultrasonic diagnostic equipment capable of evading the display of an operation error area and obtaining high quality elastic images. SOLUTION: The ultrasonic diagnostic equipment provided with an elastic image generation means for generating elastic images on the basis of the displacement information of tomographic images comprises a speed distribution detection means for selecting an image area on the basis of displacement speed information and an elastic image selection means for selecting the elastic image corresponding to the image area selected by the speed distribution detection means. COPYRIGHT: (C)2008,JPO&INPIT

80. 发明专利

JP2007130357A Ultrasonic probe and ultrasonic diagnostic apparatus 有权
标题翻译：超声探头和超声诊断装置
公开(公告)号：JP2007130357A
公开(公告)日：2007-05-31
申请号：JP2005328316
申请日：2005-11-14
申请人： Hitachi Medical Corp , 株式会社日立メディコ
发明人： SHINOMURA RYUICHI
IPC分类号： A61B8/00 , G01N29/24 , H04R19/00
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic imaging apparatus by which the location of a Fresnel focus point in a minor axis direction by a transmitted wave and a received wave.
SOLUTION: An ultrasonic probe 5 is constituted by laminating minor axis electrodes 11 for the transmitted wave, a transmitted wave sensor unit 12, minor axis electrodes 13 for the received wave, a received wave sensor unit 14, major axis electrodes 15, an acoustic lens 16, and a matching layer 17 on a semiconductor substrate 18. A transmitted wave oscillator for the transmitted wave and a received wave oscillator for the received wave are laminated on each other and are respectively controllable independently. That is, each of transmission and reception can independently set the Fresnel focus point in the minor axis direction.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种超声波成像装置，通过该超声波成像装置，通过发射波和接收波将短频轴上的菲涅尔聚焦点的位置设置在短轴方向。解决方案：超声波探头5通过层叠用于透射波的短轴电极11，透射波传感器单元12，用于接收波的短轴电极13，接收波传感器单元14，长轴电极15，声透镜16以及半导体基板18上的匹配层17.发射波的发射波振荡器和接收波的接收波振荡器彼此层叠并分别独立控制。也就是说，发送和接收中的每一个可以在短轴方向上独立地设置菲涅尔聚焦点。版权所有（C）2007，JPO＆INPIT

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