X-RAY COMPUTED TOMOGRAPHY APPARATUS AND TOMOGRAPHIC METHOD
    1.
    发明申请
    X-RAY COMPUTED TOMOGRAPHY APPARATUS AND TOMOGRAPHIC METHOD 有权
    X射线计算机图像设备和TOMOGRAPHIC方法

    公开(公告)号:US20090060120A1

    公开(公告)日:2009-03-05

    申请号:US12198499

    申请日:2008-08-26

    IPC分类号: A61B6/00

    摘要: An X-ray CT apparatus detects a predetermined characteristic wave from each electrocardiographic waveform acquired from an electrocardiograph, predicts intervals with which the characteristic wave appears based on appearance times of the detected predetermined characteristic wave in each electrocardiographic waveform, and determines an X-ray irradiation start time based on the predicted interval time. After an instruction to start collection of X-ray intensity distribution data is received, if an appearance interval of a detected predetermined characteristic wave is within an acceptable normal-heartbeat range, it is determined as a normal heartbeat. If the appearance interval of the detected predetermined characteristic wave is outside the acceptable normal-heartbeat range, it is determined as an abnormal heartbeat. During a period after receiving the instruction to start the collection until reaching a time of starting the collection of X-ray detection information, when determined as an abnormal heartbeat, an X-ray irradiation start time is recalculated, and then determined.

    摘要翻译: X射线CT装置根据从心电图仪获取的每个心电波形检测预定的特征波,根据每个心电图波形中检测到的预定特征波的出现时间预测出现特征波的间隔,并确定X射线照射 基于预测间隔时间的开始时间。 在接收到开始收集X射线强度分布数据的指令之后,如果检测到的预定特征波的出现间隔在可接受的正常心跳范围内,则被确定为正常的心跳。 如果检测出的预定特征波的出现间隔在可接受的正常心跳范围之外,则判定为异常心跳。 在接收到开始收集的指令到达开始收集X射线检测信息的时间之前的期间,当被确定为异常心跳时,重新计算X射线照射开始时间,然后确定。

    X-ray computed tomography apparatus and tomographic method
    2.
    发明授权
    X-ray computed tomography apparatus and tomographic method 有权
    X线计算机断层摄影仪和断层摄影法

    公开(公告)号:US07756241B2

    公开(公告)日:2010-07-13

    申请号:US12198499

    申请日:2008-08-26

    IPC分类号: A61B6/03 H05G1/60

    摘要: An X-ray CT apparatus detects a predetermined characteristic wave from each electrocardiographic waveform acquired from an electrocardiograph, predicts intervals with which the characteristic wave appears based on appearance times of the detected predetermined characteristic wave in each electrocardiographic waveform, and determines an X-ray irradiation start time based on the predicted interval time. After an instruction to start collection of X-ray intensity distribution data is received, if an appearance interval of a detected predetermined characteristic wave is within an acceptable normal-heartbeat range, it is determined as a normal heartbeat. If the appearance interval of the detected predetermined characteristic wave is outside the acceptable normal-heartbeat range, it is determined as an abnormal heartbeat. During a period after receiving the instruction to start the collection until reaching a time of starting the collection of X-ray detection information, when determined as an abnormal heartbeat, an X-ray irradiation start time is recalculated, and then determined.

    摘要翻译: X射线CT装置根据从心电图仪获取的每个心电波形检测预定的特征波,根据每个心电图波形中检测到的预定特征波的出现时间预测出现特征波的间隔,并确定X射线照射 基于预测间隔时间的开始时间。 在接收到开始收集X射线强度分布数据的指令之后,如果检测到的预定特征波的出现间隔在可接受的正常心跳范围内,则被确定为正常的心跳。 如果检测出的预定特征波的出现间隔在可接受的正常心跳范围之外,则判定为异常心跳。 在接收到开始收集的指令到达开始收集X射线检测信息的时间之前的期间,当被确定为异常心跳时,重新计算X射线照射开始时间,然后确定。

    X-ray CT scanner and image creating method
    3.
    发明授权
    X-ray CT scanner and image creating method 有权
    X射线CT扫描仪和图像创建方法

    公开(公告)号:US08126110B2

    公开(公告)日:2012-02-28

    申请号:US12507333

    申请日:2009-07-22

    IPC分类号: A61B6/00

    摘要: In an X-ray CT scanner having an X-ray tube which applies an X-ray spreading in a body axis direction of a subject, and an X-ray detector having a wide imaging range which detects the X-ray passed through the subject and converts the detected X-ray into an electric signal, a desired image creation time is set by use of a specific CT value curve in a console input unit before scanning with the X-ray. After the scanning, data of the CT value change curve is generated based on the obtained projection data. An image creation range in the generated change curve is determined based on an image creation range set in the console input unit, and the image creation is performed in the image creation unit based on the determined image creation time.

    摘要翻译: 在具有X射线管的X射线CT扫描器中,X射线管在被检体的体轴方向施加X射线扩散,X射线检测器具有检测通过被检体的X射线的宽的成像范围 并将所检测的X射线转换成电信号,在用X射线扫描之前,通过使用控制台输入单元中的特定CT值曲线来设定期望的图像创建时间。 扫描后,根据获得的投影数据生成CT值变化曲线的数据。 基于在控制台输入单元中设置的图像创建范围来确定生成的变化曲线中的图像创建范围,并且基于所确定的图像创建时间在图像创建单元中执行图像创建。

    Polyurethane foam model and method of measuring stress distribution by
using such model
    4.
    发明授权
    Polyurethane foam model and method of measuring stress distribution by using such model 失效
    聚氨酯泡沫模型和使用这种模型测量应力分布的方法

    公开(公告)号:US5014558A

    公开(公告)日:1991-05-14

    申请号:US433321

    申请日:1989-11-08

    CPC分类号: G01L5/008 G01L1/22 G01L5/00

    摘要: A model for measuring stress distribution constituted by a light, integral polyurethane foam having little unevenness in density, the polyurethane foam being at predetermined sites provided with undercoating layers, to each of which a resistance wire strain gauge is attached via an adhesive, each of the undercoating layers having a thickness of 50-300 .mu.m and being made of a material which is unreactive with, hardly penetrable into and softer than the polyurethane foam. The stress distribution measurement is conducted by supporting the polyurethane foam model by one or more support members at positions corresponding to the restraint sites of an actual metal member, and applying a load to the polyurethane foam model at a position corresponding to the site of the actual metal member to which a load is actually applied, thereby measuring a stress distribution in the polyurethane foam model under substantially the same restraint conditions as in the actual metal members.

    摘要翻译: 用于测量应力分布的模型由聚碳酸酯泡沫体密度差很小的聚氨酯泡沫塑料组成,聚氨酯泡沫在预定的位置设置有底涂层,每一个电阻丝应变仪都通过粘合剂粘附, 底涂层厚度为50-300μm,由不易渗透并且比聚氨酯泡沫更柔软的材料制成。 应力分布测量是通过一个或多个支撑构件在与实际金属构件的约束位置对应的位置处支撑聚氨酯泡沫模型进行的,并且在对应于实际的位置的位置处对聚氨酯泡沫模型施加负载 实际施加负载的金属构件,从而在与实际金属构件基本相同的约束条件下测量聚氨酯泡沫塑料模型中的应力分布。

    Method of manufacturing a product by estimating thermal stress using a
model of the product made of different material
    5.
    发明授权
    Method of manufacturing a product by estimating thermal stress using a model of the product made of different material 失效
    通过使用由不同材料制成的产品的模型来估计热应力来制造产品的方法

    公开(公告)号:US5129443A

    公开(公告)日:1992-07-14

    申请号:US725452

    申请日:1991-07-03

    摘要: A method of manufacturing a heat resistant member includes the step of designing the shape of the heat resistant member, including the substeps of estimating thermal stress of the heat resistant member by heating a model formed by a high-thermal expansion material which has a similar shape to the desired shape of the heat resistant member while the model is restrained and also while it is free. The high-thermal expansion material is different from the material of the member being modeled and has a thermal expansion coefficient greater than that of the material of the member being modeled. Additionally, the step of designing includes the substeps of measuring the strain of the model at each of a plurality of predetermined positions while the model is heated by strain gauges adhered to predetermined positions on the model, and calculating the stress at each predetermined position from the difference in measured strain values between the restraint state and the free state. Finally, the manufacturing method includes casting the heat resistant member to the designed shape.

    摘要翻译: 制造耐热构件的方法包括设计耐热构件的形状的步骤,包括通过加热由具有相似形状的高热膨胀材料形成的模型估计耐热构件的热应力的子步骤 达到期望的耐热构件的形状,同时模型被约束并且同时它是自由的。 高热膨胀材料与被模制部件的材料不同,其热膨胀系数大于被模制部件的材料的热膨胀系数。 此外,设计步骤包括在模型被加热到附着在模型上的预定位置的应变计上时,在多个预定位置的每一个处测量模型的应变的子步骤,以及从模型的每个预定位置计算应力 约束状态和自由状态之间的测量应变值的差异。 最后,制造方法包括将耐热构件浇铸成设计形状。

    X-ray CT apparatus and a method of controlling the X-ray CT apparatus
    6.
    发明授权
    X-ray CT apparatus and a method of controlling the X-ray CT apparatus 有权
    X射线CT装置及X射线CT装置的控制方法

    公开(公告)号:US08279999B2

    公开(公告)日:2012-10-02

    申请号:US12707089

    申请日:2010-02-17

    IPC分类号: G01N23/00

    摘要: An X-ray CT apparatus includes an X-ray generator and an X-ray detector. The X-ray generator and the X-ray detector rotate about a subject. A controller controls the timing of exposing X-rays from the X-ray generator. The controller controls the collection timing for the projection data used by the X-ray detector and causes the X-ray detector to continuously collect the projection data at the specified collection timing. The controller causes additional information representing the state of exposure of the X-rays to be added to each projection data that has been collected by the X-ray detector at said specified collection timing.

    摘要翻译: X射线CT装置包括X射线发生器和X射线检测器。 X射线发生器和X射线检测器绕主体旋转。 控制器控制从X射线发生器曝光X射线的时机。 控制器控制由X射线检测器使用的投影数据的收集时间,并使X射线检测器在指定的收集时刻连续收集投影数据。 所述控制器产生表示所述X射线的曝光状态的附加信息,所述X射线被添加到在所述指定的收集定时由所述X射线检测器收集的每个投影数据。

    Spheroidal graphite cast iron member having improved mechanical strength
hand method of producing same
    7.
    发明授权
    Spheroidal graphite cast iron member having improved mechanical strength hand method of producing same 失效
    具有改进的机械强度手球法的球墨铸铁件

    公开(公告)号:US5346561A

    公开(公告)日:1994-09-13

    申请号:US22623

    申请日:1993-02-25

    IPC分类号: C21D5/00 C22C37/04

    摘要: The spheroidal graphite cast iron member having a surface layer portion mostly composed of a ferrite phase and having a thickness of at least 1 mm, and an inner portion composed of a pearlite phase and a ferrite phase, the surface layer portion having a ferritization ratio of 70% or more which is larger than that of the inner portion by at least about 15% is produced by (a) pouring a spheroidal graphite cast melt into a casting mold; (b) removing the casting mold by shake-out after the completion of solidification of the melt, while substantially the entire portion of the resulting cast iron product is still at a temperature of its A.sub.1 transformation point or higher; (c) when the temperature difference between the surface layer portion and the inner portion has become 40.degree.-60.degree. C., introducing the cast iron product into a uniform-temperature furnace kept at 750.degree.-900.degree. C., where the cast iron product is held for such a time period as to produce the surface layer portion having a ferritization ratio of 70% or more which is larger than that of the inner portion by at least about 15%; and (d) transferring the cast iron product into a cooling furnace to cool the cast iron product at a cooling speed of 15.degree.-100.degree. C./min.

    摘要翻译: 所述球墨铸铁构件具有主要由铁素体相组成且厚度为至少1mm的表层部分和由珠光体相和铁素体相组成的内部,所述表层部分具有铁素体相的铁素体相, 通过(a)将球状石墨铸造熔体注入铸模中来制造比内部部分大至少约15%的70%或更多的70% (b)在熔融物凝固完成之后通过摇晃除去铸模,同时基本上所得铸铁产品的整个部分仍处于其A1相变点或更高的温度; (c)当表面层与内部之间的温差变为40°-60°C时,将铸铁产品引入保持在750°-900℃的均匀炉中,铸件 铁产品保持这样一段时间,以便产生具有比内部部分大的铁素体比70%或更多的表层部分至少约15%的表面层部分; 和(d)将铸铁产品转移到冷却炉中,以15℃-100℃/ min的冷却速度冷却铸铁产品。

    X-RAY CT APPARATUS AND A METHOD OF CONTROLLING THE X-RAY CT APPARATUS
    9.
    发明申请
    X-RAY CT APPARATUS AND A METHOD OF CONTROLLING THE X-RAY CT APPARATUS 有权
    X射线CT装置和控制X射线CT装置的方法

    公开(公告)号:US20100215141A1

    公开(公告)日:2010-08-26

    申请号:US12707089

    申请日:2010-02-17

    IPC分类号: H05G1/60 H05G1/54

    摘要: An X-ray CT apparatus includes an X-ray generator and an X-ray detector. The X-ray generator and the X-ray detector rotate about a subject. A controller controls the timing of exposing X-rays from the X-ray generator. The controller controls the collection timing for the projection data used by the X-ray detector and causes the X-ray detector to continuously collect the projection data at the specified collection timing. The controller causes additional information representing the state of exposure of the X-rays to be added to each projection data that has been collected by the X-ray detector at said specified collection timing.

    摘要翻译: X射线CT装置包括X射线发生器和X射线检测器。 X射线发生器和X射线检测器绕主体旋转。 控制器控制从X射线发生器曝光X射线的时机。 控制器控制由X射线检测器使用的投影数据的收集时间,并使X射线检测器在指定的收集时刻连续收集投影数据。 所述控制器产生表示所述X射线的曝光状态的附加信息,所述X射线被添加到在所述指定的收集定时由所述X射线检测器收集的每个投影数据。