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1. 发明专利

JP2005245657A X-ray imaging equipment 有权
标题翻译： X射线成像设备
公开(公告)号：JP2005245657A
公开(公告)日：2005-09-15
申请号：JP2004058556
申请日：2004-03-03
申请人： Hitachi Medical Corp , 株式会社日立メディコ
发明人： UEKI HIRONORI , MASUZAWA YUTAKA
IPC分类号： A61B6/00
摘要： PROBLEM TO BE SOLVED: To provide a technique for effectively displaying a photoelectric effect image and a Compton effect image in X-ray imaging equipment having a dual energy imaging function.
SOLUTION: This X-ray imaging equipment creates a composite image as an X-ray transmission image to a virtual X-ray source based on the photoelectric effect image and the Compton effect image and displays it on a single screen. This equipment is provided with a spectrum storage means 102 storing information of energy spectrum of the X-rays generated by the virtual X-ray source, and X-ray transmission image calculating means 100 and 101 calculating the X-ray transmission image of a subject relative to the virtual X-ray source based on the energy spectrum stored in the spectrum storage means and a dual energy image.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于在具有双能量成像功能的X射线成像设备中有效显示光电效果图像和康普顿效应图像的技术。
解决方案：该X射线成像设备基于光电效应图像和康普顿效应图像，将复合图像作为X射线透射图像创建到虚拟X射线源，并将其显示在单个屏幕上。该设备具有存储由虚拟X射线源产生的X射线的能量谱的信息的光谱存储装置102以及计算对象的X射线透射图像的X射线透射图像计算装置100和101 相对于基于存储在频谱存储装置中的能谱的虚拟X射线源和双能量图像。版权所有（C）2005，JPO＆NCIPI

2. 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.

3. 发明专利

JPH03118048A ULTRASONIC DIAGNOSTIC DEVICE 失效
公开(公告)号：JPH03118048A
公开(公告)日：1991-05-20
申请号：JP25513589
申请日：1989-10-02
申请人： HITACHI MEDICAL CORP
发明人： KONDO TOSHIRO , SATO YUTAKA , MASUZAWA YUTAKA , TAKEUCHI HIROYUKI
IPC分类号： G01N29/26 , A61B8/00 , G01S15/89
摘要： PURPOSE:To curtail the number of parts for constituting a probe, and also, to curtail the number of signal lines, etc., extended from the probe by controlling a scan of an ultrasonic beam by opening and closing a switch group connected to an electrode of vibrator elements arranged like the face in the two-dimensional direction. CONSTITUTION:Many vibrator elements 47, 47,... of a probe 35 are brought to circuit constitution. That is, many vibrator elements 47 are arranged, for instance, like a matrix of vertical and horizontal (m)X(n) pieces, each of the vibrator elements 47 corresponding to an arrangement of lines in the horizontal direction is connected in common to each control line 52 through a sufficiently large resistance R, and each of the vibrator elements corresponding to an arrangement of rows in the vertical direction is connected in common to each control line 53. As for the control lines 52, for instance, (n) pieces are provided, and by applying a bias voltage to the control lines 52, an electro-mechanical coupling coefficient Kt of the vibrator elements 47, 47,... arranged in lines in the specific horizontal direction can be made large. By ON and OFF operations of the bias voltage applied to the control line 52, the control for allowing only the vibrator elements 47, 47,... arranged in the lines in the specific horizontal direction to be active or inactive as an electro-acoustic converting element can be executed.

4. 发明专利

JP2008264342A Ultrasonic diagnostic apparatus 有权
标题翻译：超声诊断设备
公开(公告)号：JP2008264342A
公开(公告)日：2008-11-06
申请号：JP2007114006
申请日：2007-04-24
申请人： Hitachi Medical Corp , 株式会社日立メディコ
发明人： OSHIKI MITSUHIRO , MASUZAWA YUTAKA
IPC分类号： A61B8/00
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic diagnostic apparatus capable of reducing speckle noises and improving the quality of an ultrasonic image. SOLUTION: A phasing frequency setting part 11 selects and determines a plurality of phasing frequencies, and divides a receiving signal into a plurality of band signals of phasing frequencies. A delay amount correction part 8 performs delay processing in accordance with a distance difference between a focus point and each channel of a vibrator 2. A phasing processing part 14 performs amplitude weighting processing and aperture width determination processing every phasing frequency. A channel addition part 15 performs addition processing to phasing data phased every channel and every phasing frequency to output the phasing data. A band signal acquisition part 16 divides the phasing data into a plurality of band signals of central frequencies. A band signal addition part 17 performs addition processing by performing amplitude weighting or filtering processing every central frequency to output an ultrasonic beam signal. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够减少斑点噪声并提高超声波图像的质量的超声波诊断装置。解决方案：定相频率设定部分11选择并确定多个定相频率，并将接收信号分成相位频率的多个频带信号。延迟量校正部分8根据振动器2的焦点和每个通道之间的距离差进行延迟处理。定相处理部分14对每个相位频率进行幅度加权处理和孔径宽度确定处理。通道加法部分15执行加法处理以对每个通道和每个相位频率进行相位分相，以输出相位数据。频带信号获取部分16将相位数据分成多个中心频带的频带信号。频带信号添加部分17通过每个中心频率执行幅度加权或滤波处理来执行加法处理，以输出超声波束信号。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JPH08191834A ULTRASONIC MEASURING DEVICE 失效
公开(公告)号：JPH08191834A
公开(公告)日：1996-07-30
申请号：JP474395
申请日：1995-01-17
申请人： HITACHI MEDICAL CORP
发明人： MASUZAWA YUTAKA
IPC分类号： A61B8/06
摘要： PURPOSE: To measure the propagation speed of vibration propagating through a blood vessel or internal organs in a human body while noninvasively and efficiently calculating the hardening degree of a blood vessel or internal organs. CONSTITUTION: An ultrasonic measuring device emits ultrasonic waves 16, 17 to a subject 13 and detects the motion of blood in a blood vessel 18 on the basis of Doppler effect of reflected sonic waves to display the same. An electroacoustic conversion part 11 emitting sonic waves vibrating the specific region (blood vessel 18) in the subject 13 and a propagation time obtaining part calculating the propagation time of vibvration (sonic waves 15) between specific regions on the basis of the change of the measuring result of Doppler effect by vibration are provided and, from the calculated propagation time of vibration and the distance between specific regions, the propagation speed of the sonic waves 15 in the blood vessel 18 is calculated.

6. 发明专利

JPH08154936A NEEDLE ULTRASONIC PROBE AND ULTRASONIC IMAGE DIAGNOSTIC APPARATUS USING THE SAME 失效
公开(公告)号：JPH08154936A
公开(公告)日：1996-06-18
申请号：JP29832694
申请日：1994-12-01
申请人： HITACHI MEDICAL CORP
发明人： YOKOZAWA KOICHI , ISHIKAWA SHIZUO , ITO YUKIO , SANO HIDEZO , KANDA HIROSHI , SHINOMURA RYUICHI , MASUZAWA YUTAKA
IPC分类号： G01N29/24 , A61B8/12
摘要： PURPOSE: To obtain a needle ultrasonic probe which is ideal for the diagnosis of the nature of a tissue and higher resolution photographing thereof at a deep part within a specimen by a method wherein a part having an ultrasonic converter of an inner needle is exposed from the tip of an outer needle during the transmitting or receiving of an ultrasonic wave and the inner needle is moved with respect to the outer needle to scan the ultrasonic converter. CONSTITUTION: An hollow intermediate cylinder 2 for holding is formed inside an hollow outer needle 1 with a puncture needle-shaped tip and moreover, an inner needle 3 carrying an ultrasonic converter 10 is fitted inside. The inner needle is pierced by a signal line 30 to transmit a signal transmitted or received by the ultrasonic converter and a tube 4 to supply or discharge an ultrasonic transmission medium. A driver 31 and a drive controller 32 are attached on an end part opposite to the sharp tip of the outer needle 1 and the inner needle 3 is turned and driven in translation. When the tip of a probe reaches an interest part in the puncturing of the probe into a human body, the outer needle 1 is pulled slightly so that a non-stretching film is broken to expose the intermediate cylinder 2 and the inner needle 3. Thus, the transmission medium is supplied into an organic tissue through a tube 4 in the inner needle to transmit or receive an ultrasonic wave driving the inner needle 3.

7. 发明专利

JPH0819537A RECEIVED WAVE PHASING CIRCUIT OF ULTRASONIC DEVICE 失效
公开(公告)号：JPH0819537A
公开(公告)日：1996-01-23
申请号：JP15339894
申请日：1994-07-05
申请人： HITACHI MEDICAL CORP
发明人： SHINOMURA RYUICHI , MASUZAWA YUTAKA
IPC分类号： G01N29/44 , A61B8/00 , G01N29/22 , G01S7/523
摘要： PURPOSE:To reduce noise in variable bore when digital phasing takes place by nullifying the received signal of a channel out of service while the data of a multiplying means is made zero, adding to the output signal of other channel, and thereby varying the bore to be used according to the focus depth. CONSTITUTION:The operation to vary the bore size according to the focal distance is made using the multiplication data. That is, ch3-ch(n-2) is used for the focal distance F1 and ch2-ch(n-1) is used for F2. while all ch's are used for F3. If a triangular weighting is given for the sake of simplification, the weighting factor O is given to F1, F2 and also factor (a) to F3 in case ch1 is used. When ch2 is used, on the other hand, weighting factor O is given to F1 (a) to F2, and (b) to F3. According to this processing, ch1, 2, (n-1), n are equivalent to out of connection for F1 substantially in the received wave phasing circuit, which permits lessening the bore.

8. 发明专利

JP2005000573A X-ray detector and apparatus using the same 有权
标题翻译： X射线探测器和使用它的装置
公开(公告)号：JP2005000573A
公开(公告)日：2005-01-06
申请号：JP2003170316
申请日：2003-06-16
申请人： Hitachi Medical Corp , 株式会社日立メディコ
发明人： KONNO YASUTAKA , OKAJIMA KENICHI , MASUZAWA YUTAKA
IPC分类号： G01T1/00 , A61B6/03 , G01T1/20 , H01L27/14 , H04N5/321
摘要： PROBLEM TO BE SOLVED: To provide an X-ray detector realizing a large area without lowering resolution in obtaining a matrix structure comprising a large number of X-ray detecting elements by tiling and a device using the same.
SOLUTION: The pads of the output signal wires of the X-ray detecting elements of photoelectric conversion boards forming a large number of the X-ray detecting elements within it are connected in the same plain positions of the photoelectric conversion boards. A required number of the photoelectric conversion boards are attached onto a wiring board, and subsequently, the wire of the photoelectric conversion board at the endmost part and the wire of the wiring board are connected. Then, a fluorescent body in which a space is formed by cutting out a part of the fluorescent body laminated onto a light incident face of a photoelectric means at the connecting position between the pads of the signal wires of the photoelectric conversion boards is attached.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种实现大面积而不降低分辨率的X射线检测器，以通过平铺来获得包括大量X射线检测元件的矩阵结构，以及使用该X射线检测元件的装置。解决方案：在其中形成大量X射线检测元件的光电转换板的X射线检测元件的输出信号线的焊盘连接在光电转换板的相同的平坦位置。将所需数量的光电转换板安装在布线板上，然后连接最末端的光电转换板的导线和布线板的导线。然后，安装通过在光电转换板的信号线的焊盘之间的连接位置切割光电装置的光入射面上的部分荧光体而形成空间的荧光体。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JPH105214A ULTRASONIC DIAGNOSTIC APPARATUS 失效
公开(公告)号：JPH105214A
公开(公告)日：1998-01-13
申请号：JP16276896
申请日：1996-06-24
申请人： HITACHI MEDICAL CORP
发明人： MIWA YUICHI , MASUZAWA YUTAKA
IPC分类号： A61B8/00
摘要： PROBLEM TO BE SOLVED: To enable to constitute a two-dimensional CT image of an object and to rewrite a CT image in a high frame rate by interpolating a signal obtained by B mode scanning from a correlation calculation of a signal obtained by M mode scanning and a signal obtained by B mode scanning. SOLUTION: This ultrasonic diagnostic apparatus is equipped with a scanning method selecting part 7 to instruct an ultrasonic beam scanning method to a diameter selecting part 2. When the scanning method selecting part 7 selected a first ultrasonic beam scanning method (for instance, B mode), the output of a digital adding part 6 is stored in a first memory 9 by a switching part 8, and when a second ultrasonic beam scanning method (for instance, M mode), the output of the digital adding part 6 is stored in a second memory 10 by the switching part 8. A correlation interpolating part 11 carries out the correlation interpolating calculation of data in first and second memories 9 and 10 and interpolates data in the first memory 9 using data in the second memory 10, and then the output thereof is stored in a third memory 12.

10. 发明专利

JPH0829523A ULTRASONIC SIGNAL PROCESSOR 失效
公开(公告)号：JPH0829523A
公开(公告)日：1996-02-02
申请号：JP16383794
申请日：1994-07-15
申请人： HITACHI MEDICAL CORP
发明人： MASUZAWA YUTAKA , SHINOMURA RYUICHI
IPC分类号： G01B17/00 , A61B8/00 , G01B17/06 , G01N29/22 , G01N29/44 , G01S7/523
摘要： PURPOSE:To reduce the scale of circuitry by dividing a memory and allocating the memory to a plurality of receiving channels so that a memory space multiplexes the I/O collectively for the channel group. CONSTITUTION:Upon receiving address signals ADR1, ADR2, single ports RAMa 141, 142,...,14n are operated as a single RAM. Address decoders 101, 102 decode the address signals ADR1, ADR2 so that any memory space of the single port RAM 141, 142,...,14n corresponds with a read or write address. The address decoder 101, 102 delivers an address signal ADR having word length shorter than the address signal ADR1, ADR2 to any one of the single ports RAMa 141, 142,...,14n. The address signals ADR1, ADR2 are inputted such that the read and write addresses do not correspond with a same single port RAM.

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