公开(公告)号：US6157696A

公开(公告)日：2000-12-05

申请号：US891709

申请日：1997-07-09

申请人： Yasuo Saito ,  Kazuyuki Ihira ,  Katsuyuki Taguchi ,  Tatsuro Suzuki ,  Hiroaki Miyazaki ,  Koichi Muraki ,  Hiroshi Aradate

发明人： Yasuo Saito ,  Kazuyuki Ihira ,  Katsuyuki Taguchi ,  Tatsuro Suzuki ,  Hiroaki Miyazaki ,  Koichi Muraki ,  Hiroshi Aradate

IPC分类号： A61B6/03 ,  H05G1/60

CPC分类号： A61B6/5205 ,  A61B6/032 ,  A61B6/583

摘要： A multi-slice X-ray CT scanner is provided to realize high resolution and a wide scanned region in a slice-thickness direction for an object. In the X-ray CT scanner, an X-ray beam for slice imaging is radiated toward an object and scanned in a predetermined slice-thickness direction, a direction orthogonal to the slice-thickness direction being defined as a channel direction. The scanner comprises a two-dimensional X-ray detector, a data acquisition system, and an electrically combining unit. The detector has a plurality of X-ray detecting elements arranged in a two-dimensional array of both rows in the slice-thickness direction and columns in the channel direction, the detecting elements of each row being arranged in unequal pitches. The data acquisition system has a plurality of data acquiring elements arranged in a two-dimensional array of rows and columns, acquiring signals detected by the two-dimensional X-ray detector, and producing digital data proportional to the detected signals. The electrically combining unit electrically combines more than two columns of all the columns in the array of the X-ray detecting elements into at least two columns of all the columns in the array of the data acquiring elements in accordance with a given slice imaging condition. For example, each row of the array of the data acquiring elements are less in number of elements than each row of the array of the X-ray detecting elements.

摘要翻译： 提供了一种多切片X射线CT扫描器，以实现对于物体的切片厚度方向的高分辨率和宽扫描区域。 在X射线CT扫描器中，将用于切片成像的X射线束朝向物体照射，并且以预定的切片厚度方向扫描，与切片厚度方向正交的方向被定义为通道方向。 扫描仪包括二维X射线检测器，数据采集系统和电合成单元。 检测器具有多个X射线检测元件，其排列成层厚方向的两列的二维阵列，并且在通道方向上具有列，每行的检测元件以不等间距排列。 数据采集​​系统具有排列成行和列的二维阵列的多个数据获取元件，获取由二维X射线检测器检测的信号，并产生与检测信号成比例的数字数据。 电合成单元根据给定的切片成像条件将X射线检测元件的阵列中的所有列的两列以上的列全部电合成数据获取元件的阵列中的所有列的至少两列。 例如，数据获取元件的阵列的每行比X射线检测元件的阵列的每一行的元素数量少。

公开(公告)号：US5684855A

公开(公告)日：1997-11-04

申请号：US602027

申请日：1996-02-15

申请人： Hiroshi Aradate ,  Tatsuro Suzuki

发明人： Hiroshi Aradate ,  Tatsuro Suzuki

IPC分类号： A61B6/03 ,  A61B6/06 ,  G21K11/12

CPC分类号： A61B6/032 ,  A61B6/4021 ,  A61B6/027 ,  A61B6/06 ,  A61B6/4488

摘要： Only an umbra of an X-ray beam is allowed to enter a designated detecting device arrays of an X-ray detector, whereby stable and good X-ray detection signals and images are provided. Even if a focal spot in an X-ray tube shifts, occurrence of artifacts or shifts of CT numbers is prevented to improve image quality. An X-ray CT scanner comprises an X-ray tube and X-ray detector, which are opposed to each other with a patient lying down on a couchtop between them, and a pre-collimator inserted between the X-ray tube and patient for restricting the width in a slice direction of an X-ray beam irradiated by the X-ray tube. The X-ray detector consists of, for example, a two-dimensional detector in which a plurality of detecting device arrays are arranged in the slice direction, each detecting device array including a plurality of detecting channels. The scanner further comprises a unit for controlling the pre-collimator in a manner that a detecting device array designated among the plurality of detecting device arrays receives only an umbra of the X-ray beam. An X-ray CT image is reconstructed using data detected by the designated detecting device arrays.

摘要翻译： 只允许X射线束的红外线进入X射线检测器的指定检测装置阵列，由此提供稳定且良好的X射线检测信号和图像。 即使X射线管中的焦斑移动，也防止了伪像的发生或CT数的偏移，从而提高图像质量。 X射线CT扫描仪包括X射线管和X射线检测器，它们彼此相对，患者躺在它们之间的沙发上，以及插入在X射线管和患者之间的预准直器 限制由X射线管照射的X射线束的切片方向的宽度。 X射线检测器由例如二维检测器构成，其中多个检测器件阵列沿切片方向排列，每个检测器件阵列包括多个检测通道。 扫描仪还包括用于以多个检测装置阵列中指定的检测装置阵列仅接收X射线束的一个微米的方式控制预准直器的单元。 使用由指定的检测装置阵列检测的数据重建X射线CT图像。

公开(公告)号：US06415012B1

公开(公告)日：2002-07-02

申请号：US09504962

申请日：2000-02-16

申请人： Katsuyuki Taguchi ,  Tatsuro Suzuki

发明人： Katsuyuki Taguchi ,  Tatsuro Suzuki

IPC分类号： A61B603

CPC分类号： A61B6/032 ,  A61B6/027 ,  A61B6/4233

摘要： An X-ray CT apparatus includes an X-ray source for generating X-rays, a detector having detector elements laid out in a plurality of rows in a body axial direction of an object on a couch for detecting X-rays transmitted through the object, and a helical data collector that collects helical data while at least one of a gantry and the couch is moved by a moving device along a body axial direction of the object on the couch in a state that at least one of the gantry and the couch is tilted. A data processor is further provided that reconstructs an image by interpolating the helical data collected and converting it into parallel beam data that is tilt corrected.

摘要翻译： X射线CT装置包括用于产生X射线的X射线源，检测器，其具有布置在床上的物体的轴向方向上的多行中的检测器元件，用于检测透过物体的X射线 以及螺旋数据收集器，其收集螺旋数据，同时在台架和沙发中的至少一个的状态下，台架和沙发中的至少一个由移动装置沿着床上的物体的身体轴向方向移动 倾斜 还提供了一种数据处理器，其通过内插所收集的螺旋数据并将其转换成被倾斜校正的平行波束数据来重建图像。

公开(公告)号：US08443929B2

公开(公告)日：2013-05-21

申请号：US12729865

申请日：2010-03-23

申请人： Tatsuro Suzuki ,  Kohtaro Shiino ,  Yusuke Fukuda ,  Atsushi Yoshitake

发明人： Tatsuro Suzuki ,  Kohtaro Shiino ,  Yusuke Fukuda ,  Atsushi Yoshitake

IPC分类号： B62D5/04

CPC分类号： B62D5/0409 ,  F16C19/06 ,  F16C25/083 ,  F16C35/077 ,  F16C2326/24 ,  F16H55/24 ,  F16H57/022 ,  F16H2057/0213 ,  F16H2057/0222

摘要： A power steering apparatus includes a worm wheel mounted on the steering shaft, a worm shaft engaged with the worm wheel, a gear housing having a wheel accommodating portion to accommodate the worm wheel and a shaft accommodating portion to accommodate the worm shaft, a bearing mounted on the worm shaft to rotatably support the worm shaft, a holder disposed in the shaft accommodating portion and having a bearing retaining portion to retain the bearing and a resilient element disposed in the shaft accommodating portion and having a resilient body portion formed with a curvature. The resilient body portion is so structured as to become deformed in such a manner as to increase or decrease in diameter when the bearing shifts in a direction that moves the worm shaft away from the worm wheel and bias the bearing in a direction that urges the worm wheel toward the worm wheel.

摘要翻译： 一种动力转向装置，包括安装在转向轴上的蜗轮，与蜗轮啮合的蜗杆轴，具有容纳蜗轮的轮容纳部分和容纳蜗杆轴的轴容纳部分的齿轮壳体， 在所述蜗杆轴上以可旋转的方式支撑所述蜗杆轴;保持器，其设置在所述轴容纳部分中并且具有用于保持所述轴承的轴承保持部分和设置在所述轴容纳部分中并具有形成为曲率的弹性体部分的弹性元件。 弹性体部分被构造成当轴承沿着使蜗杆轴远离蜗轮移动的方向移动并使轴承沿着推动蜗杆的方向偏移时直径增大或减小的方式变形 轮朝向蜗轮。

公开(公告)号：US07103134B2

公开(公告)日：2006-09-05

申请号：US10330049

申请日：2002-12-30

申请人： Tatsuro Suzuki

发明人： Tatsuro Suzuki

IPC分类号： A61B6/03

CPC分类号： A61B6/032 ,  A61B6/027 ,  A61B6/4085 ,  A61B6/469 ,  A61B6/488 ,  Y10S378/901

摘要： A computed tomography apparatus configured to assist an operator in easily and correctly making an imaging plan thereby reducing the burden of the operator. The computed tomography apparatus selects at least one of reconstruction methods or changes a parameter by the information the operator inputs or displays its grade information, for example.

公开(公告)号：US08505675B2

公开(公告)日：2013-08-13

申请号：US13047315

申请日：2011-03-14

申请人： Tatsuro Suzuki ,  Satoshi Taniuchi ,  Kohtaro Shiino

发明人： Tatsuro Suzuki ,  Satoshi Taniuchi ,  Kohtaro Shiino

IPC分类号： B62D5/04

CPC分类号： B62D5/0409 ,  F16D3/68 ,  F16D13/06

摘要： A power steering apparatus including a joint including a first boss disposed on an axial end portion of a motor output shaft, first projections disposed on the first boss in the circumferential direction, a second boss disposed on an axial end portion of a worm shaft and opposed to the first boss, second projections disposed on the second boss in the circumferential direction and arranged between the adjacent first projections, a first elastic member made of metal and a second elastic member made of at least one of resin and rubber, the first and second elastic members being disposed between an axial end surface of the first boss and an opposed axial end surface of the second boss and cooperating with each other to generate an elastic force in such a direction as to move the worm shaft away from the motor output shaft.

摘要翻译： 一种动力转向装置，包括：接头，包括设置在电动机输出轴的轴向端部的第一凸台;沿圆周方向设置在第一凸台上的第一凸起;设置在蜗杆轴的轴向端部的第二凸台， 所述第一凸起部，所述第二凸起沿圆周方向设置在所述第二凸台上，并且布置在所述相邻的第一突起之间，由金属制成的第一弹性构件和由树脂和橡胶中的至少一个制成的第二弹性构件，所述第一和第二凸起 弹性构件设置在第一凸台的轴向端面和第二凸台的相对的轴向端面之间，并且彼此协作以在使蜗杆轴远离马达输出轴的方向上产生弹力。

公开(公告)号：US3943568A

公开(公告)日：1976-03-09

申请号：US458872

申请日：1974-04-08

申请人： Tatsuro Suzuki

发明人： Tatsuro Suzuki

IPC分类号： G11B5/48 ,  G11B5/55 ,  G11B21/08

CPC分类号： G11B5/5504 ,  G11B5/48

摘要： A magnetic head height changing apparatus is disclosed which is provided with a cam mechanism with a cam surface and claws, a pulley or gear device driven by a motor or fly-wheel and movable or rotatable to engage with or disengage from the cam mechanism, a first engaging device bearing a magnetic head and engageable with the cam mechanism, a second engaging device for locking the pulley or gear device when it is spaced from the cam mechanism, and an operating device for operating the second device. With the disclosed magnetic head height changing apparatus, when the second device is operated by the operating device to release the locking of the pulley or gear device and to make it contact with the cam mechanism to rotate the same by a predetermined value, the second engaging device again locks the pulley or gear device to stop the rotation of the cam mechanism to hold the magnetic head at a predetermined height.

摘要翻译： 公开了一种磁头高度改变装置，其具有凸轮机构，所述凸轮机构具有凸轮表面和爪，由马达或飞轮驱动并可移动或可旋转以与凸轮机构接合或脱离的滑轮或齿轮装置， 第一接合装置，其具有磁头并与凸轮机构接合;第二接合装置，用于当其与凸轮机构间隔开时锁定滑轮或齿轮装置;以及操作装置，用于操作第二装置。 利用所公开的磁头高度改变装置，当第二装置由操作装置操作以释放滑轮或齿轮装置的锁定并使其与凸轮机构接触以将其旋转预定值时，第二接合 装置再次锁定滑轮或齿轮装置以停止凸轮机构的旋转以将磁头保持在预定高度。

公开(公告)号：US20050185760A1

公开(公告)日：2005-08-25

申请号：US11107901

申请日：2005-04-18

申请人： Tatsuro Suzuki

发明人： Tatsuro Suzuki

IPC分类号： A61B6/03 ,  G21K1/12 ,  A61B6/00 ,  G01N23/00 ,  H05G1/34 ,  H05G1/50 ,  H05G1/60

CPC分类号： A61B6/032 ,  A61B6/542

摘要： An X-ray computed tomography apparatus includes an X-ray tube, a high voltage generator which generates a high voltage to be applied to the X-ray tube, an X-ray detector having a plurality of X-ray detection element lines, a scanogram generating unit which generates a scanogram on the basis of an output from the X-ray detector, a reconstructing unit which reconstructs an image on the basis of an output from the X-ray detector, a tube current determining unit which determines a tube current value on the basis of the pixel values of a plurality of pixels included in a two-dimensional partial region of the scanogram, and a control unit which controls the high voltage generator on the basis of the determined tube current value.

摘要翻译： X射线计算机断层摄影装置包括X射线管，产生施加到X射线管的高电压的高电压发生器，具有多个X射线检测元件线的X射线检测器， 扫描图生成单元，其基于来自X射线检测器的输出生成扫描图;重建单元，其基于来自X射线检测器的输出重建图像;管电流确定单元，其确定管电流 基于包括在扫描图的二维部分区域中的多个像素的像素值的控制单元，以及基于所确定的管电流值来控制高电压发生器的控制单元。

公开(公告)号：US06363134B1

公开(公告)日：2002-03-26

申请号：US09480949

申请日：2000-01-11

申请人： Tatsuro Suzuki

发明人： Tatsuro Suzuki

IPC分类号： A61B603

CPC分类号： A61B6/032 ,  A61B6/06 ,  A61B6/4085 ,  A61B6/463

摘要： Upon successively acquiring a plurality of tomographic images of an identical patient, and displaying them time-serially, the display mode of images is changed. More specifically, the display order of images is switched in correspondence with the standing position of the observer. The standing position of the observer can be automatically detected. The aperture width of a precollimator is controlled in accordance with the setups of images of interest/non-interest, and data from predetermined detection element arrays are bundled in accordance with the setups. At least one of a plurality of reconstructed tomographic images and a specific image undergo a differential process to generate and display a differential image. The pixel values of at least one of a plurality of reconstructed tomographic images are compared with a predetermined threshold value to generate and display an image consisting of only pixels that have exceeded the threshold value.

摘要翻译： 连续地获取同一病人的多个断层图像，并且以时间顺序显示，改变图像的显示模式。 更具体地，图像的显示顺序与观察者的站立位置相对应地切换。 可以自动检测观察者的站立位置。 根据感兴趣/不感兴趣的图像的设置来控制预制纤器的孔径宽度，并且根据设置捆绑来自预定检测元件阵列的数据。 多个重建断层图像和特定图像中的至少一个经历微分处理以产生和显示差分图像。 将多个重构断层图像中的至少一个的像素值与预定阈值进行比较，以生成并显示由仅超过阈值的像素构成的图像。

公开(公告)号：US09779520B2

公开(公告)日：2017-10-03

申请号：US12724609

申请日：2010-03-16

申请人： Tatsuro Suzuki

发明人： Tatsuro Suzuki

IPC分类号： G06T1/00 ,  A61B6/03 ,  G06T11/00

CPC分类号： G06T11/005 ,  A61B6/032

摘要： A rotation frame supports an X-ray tube and an X-ray detector to be rotatable about a rotation axis. A top plate support mechanism supports the top plate on which a sample is placed to be movable along the rotation axis. A scan controller drives the top plate support mechanism and the rotation frame so as to scan a plurality of scan areas either partially overlapping or being adjacent along the rotation axis with the X-rays. A reconstruction processor generates a plurality of volume data sets corresponding to the plurality of scan areas on the basis of the output from the X-ray detector. A boundary corrector corrects CT values of the plurality of volume data sets on the basis of CT value differences between the overlapping or adjacent portions of the plurality of volume data sets.