公开(公告)号：US06261232B1

公开(公告)日：2001-07-17

申请号：US09445890

申请日：2000-03-30

申请人： Koichi Yokosawa ,  Ryuichi Shinomura

发明人： Koichi Yokosawa ,  Ryuichi Shinomura

IPC分类号： A61B800

CPC分类号： A61B8/4461 ,  A61B8/00 ,  A61B8/12 ,  G01S15/8906 ,  G01S15/895

摘要： A high frequency continuous wave capable of achieving sufficient lateral resolution is produced by a wave transmitting device (20) to constitute a transmitted ultrasonic wave. A frequency of the continuous wave is alternated in a rectangular wave manner by a frequency modulator (15) so as to be frequency-modulated. An alternating time period of the frequency modulation is set to such time two times longer than such delay time which is defined from a time instant when a signal voltage is applied to a piezoelectric transducer element (1) up to another time instant when an ultrasonic wave originated from the piezoelectric transducer is reflected from a focal point 5 and then is reached to the piezoelectric transducer element. In a delay circuit (35), a delay equal to the delay time is applied to the transmitted ultrasonic wave so as to be used as a reference signal. A mixture signal produced by mixing the transmitted ultrasonic wave with the received ultrasonic wave is lock-in-detected (55), so that a reflection signal reflected from the checking object is selectively detected. As a result of increasing a total wave number of transmitted/received waves per unit time, since the continuous wave ultrasonic wave is irradiated onto the checking subject, for instance, in the case that living body tissue is imaged with high resolution at a cell level, S/N is improved.

摘要翻译： 通过波发射装置（20）产生能够实现足够的横向分辨率的高频连续波，以构成发射的超声波。 频率调制器（15）以矩形波方式交替连续波的频率以进行频率调制。 将频率调制的交替时间段设定为从信号电压施加到压电换能器元件（1）的时刻定义的延迟时间的两倍的时间，直到超声波 源自压电换能器的光源从焦点5反射，然后到达压电换能器元件。 在延迟电路（35）中，对发送的超声波施加与延迟时间相等的延迟，作为基准信号。 通过将发送的超声波与接收到的超声波混合而产生的混合信号被锁定检测（55），从而选择性地检测从检查对象反射的反射信号。 作为每单位时间的发送/接收波的总波数增加的结果，由于连续波超声波被照射到检查对象上，例如，在细胞水平以高分辨率成像生物体组织的情况下 ，S / N得到改善。

公开(公告)号：US5829439A

公开(公告)日：1998-11-03

申请号：US671010

申请日：1996-06-28

申请人： Koichi Yokosawa ,  Shizuo Ishikawa ,  Ryuichi Shinomura ,  Yukio Ito ,  Shuzo Sano ,  Hiroshi Kanda ,  Yutaka Sato ,  Toshio Kondo

发明人： Koichi Yokosawa ,  Shizuo Ishikawa ,  Ryuichi Shinomura ,  Yukio Ito ,  Shuzo Sano ,  Hiroshi Kanda ,  Yutaka Sato ,  Toshio Kondo

IPC分类号： A61B8/12 ,  A61B8/00

CPC分类号： A61B5/6848 ,  A61B8/0841 ,  A61B8/12 ,  A61B8/4461 ,  A61B8/463 ,  A61B8/445

摘要： A needle-like ultrasonic probe includes an inner needle received in a hollow, tubular outer needle for rotation about an axis thereof. The inner needle has a pointed distal end, and a notch is formed in an outer peripheral surface of that portion of the inner needle which is located adjacent to the distal end thereof. At least one ultrasonic transducer, as well as an acoustic lens for converging an ultrasonic wave, produced by the ultrasonic transducer, onto a point near to the outer peripheral surface of the inner needle, is provided in the notch. A filler, having an outer surface conforming to the outer peripheral surface of the inner needle, is fitted in the notch. With this construction, after the inner needle is smoothly stuck into a living tissue, even if it is rotated and axially moved, the living tissue is less affected or damaged by the inner needle.

摘要翻译： 针状超声波探头包括容纳在中空的管状外针中的内针，用于围绕其轴线旋转。 内针具有尖的远端，并且在内针的与其远端相邻的部分的外周面形成有切口。 至少一个超声波换能器以及用于将由超声波换能器产生的超声波收敛的声透镜设置在靠近内针外周面的点上。 具有与内针的外周面相符的外表面的填料装配在凹口中。 利用这种结构，即使内针被平滑地粘贴到生物体组织中，即使其旋转并轴向移动，生物体组织也不会受到内针的影响或损坏。

公开(公告)号：US08366616B2

公开(公告)日：2013-02-05

申请号：US11913959

申请日：2006-05-09

申请人： Mitsuhiro Oshiki ,  Ryuichi Shinomura

发明人： Mitsuhiro Oshiki ,  Ryuichi Shinomura

IPC分类号： A61B8/00

CPC分类号： G01S15/8927 ,  G01S7/52046 ,  G01S15/8925 ,  G10K11/346

摘要： For realization of an ultrasonic diagnostic apparatus capable of satisfactorily narrowing a beam width while suppressing an increase in the number of focus data, an ultrasonic diagnostic apparatus is designed to include an ultrasonic probe 10 that transmits or receives ultrasonic waves to or from a subject, a transmission unit 12 that supplies a driving signal to the ultrasonic probe 10, a reception unit 16 that handles a received signal sent from the ultrasonic probe 10, a unit 18 that reconstructs an ultrasonic image on the basis of a signal sent from the reception unit 16, and a unit 20 that displays the ultrasonic image. The ultrasonic diagnostic apparatus further includes an element selection unit 22 that selects a plurality of driving oscillatory elements, which constitutes an aperture through which ultrasonic waves are transmitted or received, from among a plurality of oscillatory elements that constitutes the ultrasonic probe 10 and transforms ultrasonic waves into electric signals or vice versa. The element selection unit 22 groups the plurality of driving oscillatory elements into a plurality of sets, each of which includes one driving oscillatory element or a plurality of adjoining driving oscillatory elements, according to the depth of a focal point.

摘要翻译： 为了实现在抑制焦点数据的增加的同时能够令人满意地缩小光束宽度的超声波诊断装置，超声波诊断装置被设计为包括：向对象发送或接收超声波的超声波探头10， 向超声波探头10提供驱动信号的发送单元12，处理从超声波探头10发送的接收信号的接收单元16，根据从接收单元16发送的信号重构超声波图像的单元18 ，以及显示超声波图像的单元20。 超声波诊断装置还包括：元件选择单元22，其从构成超声波探头10的多个振荡元件中选择构成发送或接收超声波的孔径的多个驱动振荡元件，并且将超声波 变成电信号，反之亦然。 元件选择单元22根据焦点的深度将多个驱动振荡元件分组为多个组，每组包括一个驱动振荡元件或多个邻接的驱动振荡元件。

公开(公告)号：US08047989B2

公开(公告)日：2011-11-01

申请号：US10593072

申请日：2005-03-10

申请人： Mitsuhiro Oshiki ,  Ryuichi Shinomura

发明人： Mitsuhiro Oshiki ,  Ryuichi Shinomura

IPC分类号： A61B8/00

CPC分类号： A61B5/02007 ,  A61B8/0858 ,  A61B8/469

摘要： A medical imaging diagnosis apparatus for measuring the composite thickness of the tunica intima and the tunica media of a blood vessel of a subject by acquiring image data on the blood vessel. In order to improve the accuracy of the IMT measurement of the composite thickness, the medical imaging diagnosis apparatus has extracting means for extracting the tunica intima and the tunica externa of the blood vessel on the basis of the brightness information of the image data to measure the composite thickness of the tunica intima and the tunica externa of the vessel in reference to the two extracted regions.

摘要翻译： 一种医疗成像诊断装置，用于通过获取血管上的图像数据来测量被检体的内膜和中膜的复合厚度。 为了提高复合材料厚度的IMT测量的精度，医疗成像诊断装置具有提取装置，用于根据图像数据的亮度信息提取血管的内膜和外膜，以测量 参考两个提取区域的血管内膜和外膜的复合厚度。

公开(公告)号：US20070112267A1

公开(公告)日：2007-05-17

申请号：US10571578

申请日：2004-09-09

申请人： Takeshi Matsumura ,  Ryuichi Shinomura ,  Tsuyoshi Mitake ,  Mitsuhiro Oshiki

发明人： Takeshi Matsumura ,  Ryuichi Shinomura ,  Tsuyoshi Mitake ,  Mitsuhiro Oshiki

IPC分类号： A61B8/00

CPC分类号： G01S15/8977 ,  A61B8/08 ,  A61B8/485 ,  G01S7/52042 ,  G01S7/52063 ,  G01S7/52071

摘要： An ultrasonic diagnostic apparatus for recognition helpful to diagnosis by giving and displaying a score serving as an index of diagnosis. An ultrasonic diagnostic apparatus comprises a displacement measuring section (109) for measuring the displacement of an organism tissue of a subject (100) according to a reflection echo signal received correspondingly when an ultrasonic wave is transmitted from a probe (101) to the subject (100), an elastic image creating section for creating an elastic image after determining the distortion amount or the elastic modulus from the displacement, and an image display (107) for displaying the elastic image. The ultrasonic diagnostic apparatus further comprises scoring means for specifying the distorted state or elastic state according to the information on the elastic image outputted from the elastic image creating section.

摘要翻译： 一种用于通过给出和显示作为诊断指标的评分有助于诊断的识别的超声波诊断装置。 超声波诊断装置包括位移测量部（109），用于根据当超声波从探针（101）传递到对象时相应地接收到的反射回波信号来测量被检体（100）的生物体组织的位移（ 100），用于在从位移确定了变形量或弹性模量之后产生弹性图像的弹性图像产生部分和用于显示弹性图像的图像显示器（107）。 超声波诊断装置还包括根据从弹性图像生成部输出的弹性图像的信息来指定失真状态或弹性状态的评分装置。

公开(公告)号：US20070016020A1

公开(公告)日：2007-01-18

申请号：US10574272

申请日：2004-09-24

申请人： Mitsuhiro Oshiki ,  Hiroshi Kanda ,  Ryuichi Shinomura

发明人： Mitsuhiro Oshiki ,  Hiroshi Kanda ,  Ryuichi Shinomura

IPC分类号： A61B8/00

CPC分类号： B06B1/0207 ,  B06B1/0292 ,  B06B2201/51 ,  B06B2201/76 ,  G10K11/341

摘要： An ultrasonic probe 10 is formed by arranging a plurality of transducers 26a to 26m for converting drive signals into ultrasonic waves to transmit the waves to an object to be inspected, and receiving ultrasonic waves generated from the object to convert the waves into electrical signals. Each of the transducers 26a to 26m has a plurality of oscillation elements 34-1 to 34-30, and each of the oscillation elements 34-1 to 34-30 has a characteristic in which the electromechanical coupling coefficient changes in accordance with the strength of the direct-current bias applied by being superposed on the drive signals. Electrodes 35, 36, and 37 of each of the oscillation elements 34-1 to 34-30 are connected to terminals 49-1 and 49-2 to which the drive signals are applied.

摘要翻译： 通过布置多个换能器26a至26m来形成超声波探头10，用于将驱动信号转换为超声波以将波发送到待检查对象，并且接收从该物体产生的超声波以将波转换成电信号 。 每个换能器26a至26m具有多个振荡元件34-1至34-30，并且每个振荡元件34-1至34-30具有这样的特性，其中机电耦合系数根据 通过叠加在驱动信号上施加的直流偏压的强度。 每个振荡元件34-1至34-30的电极35,36和37连接到施加驱动信号的端子49-1和49-2。

公开(公告)号：US20050075570A1

公开(公告)日：2005-04-07

申请号：US10169979

申请日：2001-01-12

申请人： Ryuichi Shinomura ,  Yuichi Miwa ,  Hirotaka Baba

发明人： Ryuichi Shinomura ,  Yuichi Miwa ,  Hirotaka Baba

IPC分类号： A61B8/00 ,  B06B1/06 ,  G01S7/52 ,  G01S15/89 ,  G10K11/34 ,  A61B8/14

CPC分类号： G01S15/8925 ,  A61B8/00 ,  A61B8/4494 ,  B06B1/0625 ,  G01S7/52046 ,  G01S7/52049 ,  G01S15/8922 ,  G01S15/8927 ,  G10K11/346

摘要： An ultrasonic diagnostic apparatus transmits an ultrasonic beam into an object to be examined using a multi-ring arrangement formed with transducer elements arrayed two-dimensionally in concentric rings and receives an echo so as to create a tomogram or a three-dimensional image of the object. To correct for focusing error due to the difference in length of ultrasound propagating paths, the ultrasonic diagnostic apparatus groups the transducer elements so as to form a multi-ring arrangement, transmits/receives ultrasonic beams with a delay to each ring of the multi-ring arrangement and scans the ultrasonic beam so as to create an ultrasonic image, measures delay error due to presence of a sound speed non-uniformity portion of the object and changes either the coupling of the multi-ring or the delay time based on the measurement error.

摘要翻译： 超声波诊断装置使用形成有以同心环二维排列的换能器元件的多环布置将超声波束发射到待检查对象中，并接收回波，以产生该物体的断层图像或三维图像 。 为了校正由于超声波传播路径的长度差引起的聚焦误差，超声波诊断装置对换能器元件进行分组以形成多环布置，将多个延迟的超声波波束发送/接收到多环的每个环 布置并扫描超声波束以产生超声波图像，测量由于存在对象的声速不均匀部分而导致的延迟误差，并且基于测量误差改变多环的耦合或延迟时间 。

公开(公告)号：US20120073374A1

公开(公告)日：2012-03-29

申请号：US13241105

申请日：2011-09-22

申请人： Ryuichi Shinomura ,  Kaisunori Asafusa ,  Mitsuhiro Oshiki

发明人： Ryuichi Shinomura ,  Kaisunori Asafusa ,  Mitsuhiro Oshiki

IPC分类号： G01N29/44

CPC分类号： G01S7/5208 ,  A61B8/00 ,  G01S7/52095 ,  G01S15/8915 ,  G01S15/8925 ,  G01S15/8927 ,  G10K11/341

摘要： An ultrasonic imaging apparatus is disclosed that is capable of eliminating deterioration of the S/N of the ultrasonic image while suppressing enlargement of the circuit size. The ultrasonic imaging apparatus includes an ultrasonic probe having a plurality of transducers arranged for transmitting and receiving ultrasonic waves to/from an object to be examined. A transmission unit is provided for supplying a drive signal to each of the transducers, and a reception unit is provided for phasing/adding and receiving a reflected echo signal received by each transducer. The apparatus also includes an image processing unit for reconfiguring an ultrasonic image based on the reflected echo signal received. The transmission unit divides the plurality of transducers into a plurality of groups, supplies a common drive signal to the transducers belonging to the same group, and performs focus control by group units.

摘要翻译： 公开了能够消除超声波图像的S / N的劣化，同时抑制电路尺寸的放大的超声波成像装置。 超声波成像装置包括具有多个换能器的超声波探头，所述多个换能器布置成用于向/从被检查物体发送和接收超声波。 提供传输单元以向每个换能器提供驱动信号，并且提供接收单元用于相位/相加和接收由每个换能器接收的反射回波信号。 该装置还包括：图像处理单元，用于基于所接收的反射回波信号重新配置超声波图像。 传输单元将多个换能器分成多个组，向属于同一组的换能器提供公共驱动信号，并且通过组单元进行聚焦控制。

公开(公告)号：US07828731B2

公开(公告)日：2010-11-09

申请号：US10488320

申请日：2002-09-06

申请人： Hirotaka Baba ,  Yutaka Sato ,  Ryuichi Shinomura ,  Jun Kubota

发明人： Hirotaka Baba ,  Yutaka Sato ,  Ryuichi Shinomura ,  Jun Kubota

IPC分类号： A61B8/00

CPC分类号： G01S7/52034 ,  A61B8/08 ,  A61B8/461 ,  G01S7/52065 ,  G01S15/8995 ,  G06T7/32 ,  G06T2207/10132 ,  G06T2207/30004

摘要： An ultrasonographic apparatus in which the S/N ratio of a compound image is improved operates by combining a plurality of reception beam signals from probes arranged at different positions relative to a sample, converting the combined ultrasonic beam into a luminance signal, and displaying the luminance signal.

摘要翻译： 通过组合来自布置在相对于样本的不同位置的探针的多个接收束信号，将组合超声波束转换为亮度信号，并且显示出亮度信号，显示复合图像的S / N比的超声波诊断装置 信号。

公开(公告)号：US07698948B2

公开(公告)日：2010-04-20

申请号：US10581486

申请日：2004-12-01

申请人： Katsunori Asafusa ,  Ryuichi Shinomura

发明人： Katsunori Asafusa ,  Ryuichi Shinomura

IPC分类号： G01N29/44 ,  A61B8/00

CPC分类号： G01S15/8959 ,  A61B8/00 ,  G01S7/52047

摘要： Encoded transmission and reception which reduces time side lobe are realized while suppressing increase of circuit scale. Transmission signals corresponding to a composite modulation code sequence composed from two or more modulation code sequences are outputted as transmission signals. A reception means demodulates reception signals stepwise by two or more demodulators. The demodulator can be thereby divided into two or more stages, and therefore with a circuit scale corresponding to the sum of the operation circuit numbers of two or more demodulators, time side lobe reduction effect can be obtained at a level equivalent to that obtainable with a circuit scale corresponding to the product of the operation circuit numbers of two or more demodulators.

摘要翻译： 在抑制电路规模的增加的同时实现减少时间旁瓣的编码发送和接收。 作为发送信号输出与由两个以上的调制码序列构成的复合调制码序列对应的发送信号。 接收装置由两个或多个解调器逐步解调接收信号。 因此，解调器可以被分成两级或更多级，因此具有对应于两个或多个解调器的操作电路号的总和的电路规模，可以获得等于与 电路规模对应于两个或多个解调器的操作电路号的乘积。