公开(公告)号：US07616981B2

公开(公告)日：2009-11-10

申请号：US10614019

申请日：2003-07-08

申请人： Yo Taniguchi ,  Hisaaki Ochi ,  Shinichiro Umemura

发明人： Yo Taniguchi ,  Hisaaki Ochi ,  Shinichiro Umemura

IPC分类号： A61B5/05

CPC分类号： G01R33/5676 ,  G01R33/56509

摘要： There is provided an inspection apparatus using nuclear magnetic resonance which can execute multi-slice and multi-frame cardiac imaging of a heart without giving any load on a subject. An inspection apparatus using nuclear magnetic resonance has static magnetic field generation means generating a static magnetic field; magnetic field gradient generation means generating a magnetic field gradient in a first, a second and a third directions orthogonal to each other; radiofrequency magnetic field generation means generating a radiofrequency magnetic field; signal detection means detecting a nuclear magnetic resonance signal (echo) produced from a subject; arithmetic processing means performing arithmetic processing of the detected nuclear magnetic resonance signal; and control means controlling the magnetic field gradient generation means and the radiofrequency magnetic field generation means, wherein the control means executes a pulse sequence acquiring a projection to determine a similarity coefficient between the projection and a reference projection, thereby detecting respiratory motion of the subject.

摘要翻译： 提供了使用核磁共振的检查装置，其可以执行心脏的多层和多帧心脏成像，而不对受试者施加任何负担。 使用核磁共振的检查装置具有产生静磁场的静磁场产生装置; 磁场梯度产生装置，在彼此正交的第一，第二和第三方向上产生磁场梯度; 产生射频磁场的射频磁场产生装置; 信号检测装置，用于检测从受检者产生的核磁共振信号（回波）; 算术处理装置执行所检测的核磁共振信号的运算处理; 以及控制装置，其控制磁场梯度产生装置和射频磁场产生装置，其中控制装置执行获取投影的脉冲序列，以确定投影和参考投影之间的相似系数，从而检测被摄体的呼吸运动。

公开(公告)号：US07358726B2

公开(公告)日：2008-04-15

申请号：US10242442

申请日：2002-09-13

申请人： Hisaaki Ochi ,  Yo Taniguchi ,  Hiroyuki Itagaki ,  Shinichiro Umemura

发明人： Hisaaki Ochi ,  Yo Taniguchi ,  Hiroyuki Itagaki ,  Shinichiro Umemura

IPC分类号： G01V3/00

CPC分类号： G01R33/3806 ,  A61B5/055

摘要： An MRI system using an open type magnet, wherein two coils different in radius for generating gradient magnetic fields in a vertical direction are arranged in the open type magnet for generating a static magnetic field in the vertical direction. Currents are caused to flow through the two coils in directions opposite to each other to improve the degree of uniformity of the magnetic field in the vertical direction, thereby reducing the degradation thereof by equal to or smaller than 2 figures compared with the degree of uniformity of the static magnetic field generated by the existing MRI system. The positional information about a read-out direction is given through the dynamic control for the RF magnetic field to give the positional information about other two axes directions based on the gradient magnetic field having strength much larger than that of nonuniformity of the magnetic field.

摘要翻译： 使用开放型磁体的MRI系统，其中在垂直方向上产生梯度磁场的半径不同的两个线圈被布置在用于在垂直方向上产生静态磁场的开放型磁体中。 引起电流流过彼此相反方向的两个线圈，以提高垂直方向上磁场的均匀度，从而与其均匀度相比降低等于或小于2个数字 由现有MRI系统产生的静磁场。 通过对RF磁场的动态控制，给出关于读出方向的位置信息，基于具有比磁场不均匀性强的强度的梯度磁场给出关于其他两个轴方向的位置信息。

公开(公告)号：US06744251B2

公开(公告)日：2004-06-01

申请号：US10309150

申请日：2002-12-04

申请人： Yo Taniguchi ,  Yukari Yamamoto ,  Hisaaki Ochi ,  Shinichiro Umemura

发明人： Yo Taniguchi ,  Yukari Yamamoto ,  Hisaaki Ochi ,  Shinichiro Umemura

IPC分类号： G01V300

CPC分类号： G01R33/4833

摘要： A nuclear-magnetic-resonance inspection apparatus that enables an examiner to designate directly a section of a subject to be imaged. The NMR inspection apparatus has a section-designating unit containing reference objects A, B, and C that can be set at three reference points, and can be held in the hand of an examiner to be moved and operated in close proximity to the subject, wherein a prescribed part of a plane including the reference objects set at up to three reference points is the section of the subject to be imaged. While watching the subject, the examiner can directly designate a section to be imaged. Thus, diagnoses can be made easily and quickly.

摘要翻译： 核磁共振检查装置，使得检查者能够直接指定待成像对象的一部分。 NMR检查装置具有包含可设置在三个参考点上的参考对象A，B和C的区段指定单元，并且可以保持在检查者的手中，以便靠近对象移动和操作， 其中包括设置在多达三个参考点处的参考对象的平面的规定部分是待成像对象的部分。 在观看主题的同时，审查员可以直接指定要成像的部分。 因此，可以容易且快速地进行诊断。

公开(公告)号：US08083679B1

公开(公告)日：2011-12-27

申请号：US11572322

申请日：2005-07-20

申请人： Takashi Azuma ,  Shinichiro Umemura ,  Yo Taniguchi

发明人： Takashi Azuma ,  Shinichiro Umemura ,  Yo Taniguchi

IPC分类号： A61B8/14

CPC分类号： A61B8/0883 ,  A61B8/13 ,  G01S15/8984

摘要： An ultrasonic image capturing apparatus is disclosed for transmitting ultrasonic pulses from an ultrasonic probe in which elements are arranged two-dimensionally to a subject, receiving the ultrasonic pulses reflected by the subject, and displaying a slice image of the subject. A vector Doppler processor detects motion of the subject along the direction of an aperture of a receiving beam former, and a displacement detector detects motion of a focus region in the subject based on a result of computation of the vector Doppler processor. A scanning plate setting section determines an image capturing region by using ultrasonic waves by the displacement detector.

摘要翻译： 公开了一种用于从超声波探头发射超声波脉冲的超声波图像捕获装置，其中元件被二维地布置到被摄体，接收被检体反射的超声波脉冲，并显示被检体的切片图像。 矢量多普勒处理器根据接收束形成器的孔径的方向来检测被摄体的运动，位移检测器基于矢量多普勒处理器的计算结果来检测被摄体中的对焦区域的运动。 扫描板设置部分通过使用位移检测器的超声波来确定图像捕获区域。

公开(公告)号：US07946992B2

公开(公告)日：2011-05-24

申请号：US11915625

申请日：2006-01-06

申请人： Shinichiro Umemura ,  Takashi Azuma ,  Tetsuya Hayashi ,  Naoyuki Murayama

发明人： Shinichiro Umemura ,  Takashi Azuma ,  Tetsuya Hayashi ,  Naoyuki Murayama

IPC分类号： A61B8/00

CPC分类号： G01S15/8981 ,  A61B8/06 ,  A61B8/488 ,  G01S15/8977

摘要： The present invention is to provide a velocity measuring method and a velocity measuring device for carrying out the method. The velocity measuring method includes: a step (S4) for expanding N time series signals by using 0-th to (N−1)-th degree discrete Legendre function as a base; a step (S5) for calculating 2n-th degree complex expansion coefficient by multiplying a linear combination of a (2n−1)-th degree expansion coefficient and a ( 2n+1)-th degree expansion coefficient by an imaginary unit and then linearly combining the result and a 2n-th degree expansion coefficient, and calculating a (2n+1)-th degree complex expansion coefficient by multiplying the (2n+1)-th degree expansion coefficient by an imaginary unit and then linearly combining the result, the 2n-th degree expansion coefficient and a (2n+2)-th degree expansion coefficient; a degree decision step (S4) for determining the degree m of a coefficient having the maximum absolute value among the complex expansion coefficients; and a step (S8) for calculating a signed velocity signal concerning a moving reflection object from a ratio of square sums of the expansion coefficients or complex expansion coefficients corresponding to the degree m.

摘要翻译： 本发明提供一种用于实施该方法的速度测量方法和速度测量装置。 速度测量方法包括：通过使用第0到第（N-1）度离散勒让德函数作为基础来扩展N个时间序列信号的步骤（S4） 通过将第（2n-1）个膨胀系数和第（2n + 1）次膨胀系数的线性组合乘以虚数单位然后线性地计算2n倍复数膨胀系数的步骤（S5） 组合结果和2n度膨胀系数，并且通过将第（2n + 1）度膨胀系数乘以虚数单位然后将结果线性组合来计算第（2n + 1）度复数膨胀系数， 第2n度膨胀系数和第（2n + 2）膨胀系数; 用于确定复数展开系数中具有最大绝对值的系数的程度m的度决定步骤（S4） 以及用于根据与度数m对应的展开系数或复扩展系数的平方和的比率来计算关于移动反射物体的有符号速度信号的步骤（S8）。

公开(公告)号：US06383140B1

公开(公告)日：2002-05-07

申请号：US09555044

申请日：2000-05-24

申请人： Yuichi Miwa ,  Ryuichi Shinomura ,  Shinichiro Umemura

发明人： Yuichi Miwa ,  Ryuichi Shinomura ,  Shinichiro Umemura

IPC分类号： A61B800

CPC分类号： G01S7/52092 ,  G01S7/52026 ,  G01S7/52034 ,  G01S7/52046

摘要： This invention provides a technology that freely changes the frequency of a reference signal in a digital ultrasonic diagnosis device and makes it possible to conduct various high-quality or high-speed imaging. 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, a number of the mixed signals accumulated being equal to a number of a plurality of samples, and are delayed and added by wave reception focusing means. The reference signal serially read out and 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.

摘要翻译： 本发明提供了一种在数字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。由阵列中布置的超声波元件组获得的接收信号被数字化 在比接收信号的奈奎斯特频率高的采样周期中，与参考信号混合。 然后，混合信号以采样方向累积，累积的混合信号的数量等于多个采样的数量，并被波接收聚焦装置延迟和相加。 参考信号以与接收信号的采样数对应的方式从存储器装置串行读出并使用。 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。

公开(公告)号：US5458761A

公开(公告)日：1995-10-17

申请号：US378973

申请日：1995-01-27

申请人： Masao Kamahori ,  Takeshi Fujita ,  Shinichiro Umemura ,  Takashi Yamada

发明人： Masao Kamahori ,  Takeshi Fujita ,  Shinichiro Umemura ,  Takashi Yamada

IPC分类号： G01N27/447 ,  G01N27/26

CPC分类号： G01N27/44704 ,  G01N27/44721 ,  G01N27/44743

摘要： Analysis of a nucleic acid samples having thousands of bases is conducted by capillary electrophoresis. The electrophoretic section is provided with a first capillary filled with an agarose gel and a second capillary filled with a polyacrylamide gel. An on-column detector is incorporated with the second capillary for optical detection. To fill a capillary with a gel, a solution is fed under high pressure from a first flow channel through a switching valve into a second flow channel connected to the capillary. To inject a sample in the capillary, a sample injector is connected to a switching valve passage, and a buffer solution is connected to the capillary through a flow channel and the switching valve. After switching the valve, the first passage is incorporated into the flow channel between the buffer solution and the capillary being filled. Then, the sample is electro-kinetically injected into the capillary. When conducting genetic polymorphism by electrophoresis, temperature control elements are provided to maintain the capillary at a predetermined temperature and a DNA sample device is provided to heat the sample to a temperature higher than a disassociation temperature thereof for directly injecting the heated sample into the capillary.

摘要翻译： 通过毛细管电泳分析具有数千个碱基的核酸样品。 电泳部分设置有填充有琼脂糖凝胶的第一毛细管和填充有聚丙烯酰胺凝胶的第二毛细管。 柱内检测器与第二毛细管并入，用于光学检测。 为了用凝胶填充毛细管，将溶液在高压下从第一流动通道通过切换阀进入连接到毛细管的第二流动通道。 为了在毛细管中注入样品，将样品注射器连接到切换阀通道，并且缓冲溶液通过流动通道和切换阀连接到毛细管。 在切换阀之后，第一通道被并入缓冲溶液和被填充的毛细管之间的流动通道中。 然后，将样品电动注射到毛细管中。 当通过电泳进行遗传多态性时，提供温度控制元件以将毛细管保持在预定温度，并且提供DNA样品装置以将样品加热到高于其解离温度的温度，以将加热的样品直接喷射到毛细管中。

公开(公告)号：US4604543A

公开(公告)日：1986-08-05

申请号：US676314

申请日：1984-11-29

申请人： Shinichiro Umemura ,  Hiroshi Takeuchi ,  Kageyoshi Katakura ,  Ryuichi Shinomura

发明人： Shinichiro Umemura ,  Hiroshi Takeuchi ,  Kageyoshi Katakura ,  Ryuichi Shinomura

IPC分类号： B06B1/06 ,  H01L41/08

CPC分类号： B06B1/0622

摘要： A multi-element ultrasonic transducer in which elements are arrayed and in which a plate-shaped piezoelectric material has its one face formed with a uniform electrode and its other face formed alternately with electrodes corresponding to the respective elements and electrodes for separating the elements. These electrodes for the element separation are connected the uniform electrode opposed thereto and is fed with a ground potential. On the other hand, the electrodes corresponding to the respective elements are fed individually with transmitting and receiving signals independently of the elements so that the electronic scanning or focusing operations can be achieved.

摘要翻译： 一种多元件超声波换能器，其中排列有元件，其中板形压电材料的一面形成有均匀的电极，其另一面与电极对应地形成，电极对应于各元件和用于分离元件的电极。 用于元件分离的这些电极与与其相对的均匀电极连接并且被馈送有接地电位。 另一方面，对应于各个元件的电极单独地馈送发送和接收信号，独立于元件，使得可以实现电子扫描或聚焦操作。

公开(公告)号：US08437512B2

公开(公告)日：2013-05-07

申请号：US13200857

申请日：2011-10-04

申请人： Akio Nagasaka ,  Takafumi Miyatake ,  Naoto Miura ,  Yoshiaki Amano ,  Yoshimi Kasai ,  Shinichiro Umemura ,  Miyuki Kono

发明人： Akio Nagasaka ,  Takafumi Miyatake ,  Naoto Miura ,  Yoshiaki Amano ,  Yoshimi Kasai ,  Shinichiro Umemura ,  Miyuki Kono

IPC分类号： G06K9/00

CPC分类号： G06K9/00067 ,  G06K9/00013 ,  G06K9/00362 ,  G06K9/00919 ,  G06K2009/00932

摘要： An identification apparatus keeps the conditions for imaging uniform among successive identifications, and requires a user to perform only a series of simple maneuvers. The apparatus comprises a guide member, a light source, and an imaging unit. The guide member includes a pattern or structure for a user to position his/her finger thereon or to approach his/her specific finger region thereto. A contact member is located in the guide member where a fingertip is positioned. An optical opening is formed at a position coincident with where a finger to be imaged should be placed. The light source radiates near-infrared light through the portion of the finger to be imaged. The imaging means acquires an image of the finger, and the apparatus compares the image to previously registered images. The apparatus may also include dual light sources power saving functionality, and means for limiting the interference of external light sources.

摘要翻译： 识别装置在连续标识之间保持成像均匀的条件，并且要求用户仅执行一系列简单的操作。 该装置包括导向件，光源和成像单元。 引导构件包括用于使用者将他/她的手指放置在其上或者使其/特定手指区域接近的图案或结构。 接触构件位于引导构件中，其中指尖被定位。 在与要成像的手指放置的位置重合的位置处形成光学开口。 光源通过要被成像的手指的部分辐射近红外光。 成像装置获取手指的图像，并且该装置将图像与先前登记的图像进行比较。 该装置还可以包括双光源节电功能，以及用于限制外部光源的干扰的装置。

公开(公告)号：US20120253198A1

公开(公告)日：2012-10-04

申请号：US13524387

申请日：2012-06-15

申请人： Kunio HASHIBA ,  Shinichiro Umemura ,  Hiroshi Masuzawa ,  Satoshi Tamano

发明人： Kunio HASHIBA ,  Shinichiro Umemura ,  Hiroshi Masuzawa ,  Satoshi Tamano

IPC分类号： A61B8/14

CPC分类号： G10K11/346 ,  G01S7/52095 ,  G01S15/8922 ,  G01S15/8925 ,  G01S15/8927 ,  G01S15/8993

摘要： Ultrasound imaging apparatus including a two-dimensional array of plural transducer elements distributed two-dimensionally and transmits and receives ultrasonic waves while scanning an area to be imaged to create an ultrasound three-dimensional image. Transducer elements are divided into plural element blocks including a first element block of which a size in a second direction of an arrangement surface of the two-dimensional array is larger than a size in a first direction of the surface, and a second element block of which a size in the first direction is larger than a size in the second direction. Each of the element blocks is divided into a predetermined number of groups to form a transmit beam and plural receive beams in the area to be imaged. Further included is a selecting means for making transmit/receive channels of the transducer elements grouped to be one channel in each of the groups.

摘要翻译： 包括二维分布的二维阵列的超声成像装置，并且在扫描要成像的区域的同时发送和接收超声波以产生超声三维图像。 传感器元件被分成多个元件块，其包括其中二维阵列的布置表面的第二方向上的尺寸大于表面的第一方向上的尺寸的第一元件块，以及第二元件块 第一方向上的尺寸大于第二方向的尺寸。 每个元件块被分成预定数量的组，以在待成像的区域中形成发射波束和多个接收波束。 进一步包括用于使换能器元件的发送/接收信道分组为每个组中的一个通道的选择装置。