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61. 发明授权

US09326740B2 Radiographic system 有权
标题翻译：射线照相系统
公开(公告)号：US09326740B2
公开(公告)日：2016-05-03
申请号：US14345577
申请日：2013-08-06
申请人： Kabushiki Kaisha Toshiba , Toshiba Medical Systems Corporation
发明人： Takahito Watanabe , Hideo Saito
IPC分类号： A61B6/03 , H05G1/34 , A61B6/00 , H05G1/30 , H05G1/26 , H05G1/32
CPC分类号： A61B6/405 , A61B6/032 , A61B6/40 , A61B6/54 , A61B6/542 , A61B6/545 , A61B6/582 , A61B6/586 , H05G1/265 , H05G1/30 , H05G1/32 , H05G1/34
摘要： A radiographic system is provided that can shorten the work time required for adjusting the initial values. The radiographic system comprises: an X-ray tube controller; an initial value calculator; and a storage. The X-ray tube controller is configured to control a filament current flowing through a filament of the X-ray tube for stabilizing the tube current at a desired value, the tube current otherwise tending to fluctuate at activation. The initial value calculator is configured to calculate an initial value for the filament current that is to be applied at next activation, based both on a stable value of the filament current while the tube current has been stable and on the image-capturing conditions at the time. The storage configured to store the calculated initial value, the image-capturing conditions, and a radiographic history that includes radiographed dates.
摘要翻译：提供了可以缩短调整初始值所需的工作时间的射线照相系统。射线照相系统包括：X射线管控制器; 初始值计算器和一个存储。 X射线管控制器被配置为控制流过X射线管的细丝的细丝电流，用于将管电流稳定在期望值，管电流在激活时反而趋于波动。初始值计算器被配置为基于灯管电流的稳定值同时在电流稳定的情况下计算下次激活时施加的灯丝电流的初始值，并且基于在时间。所述存储器被配置为存储所计算的初始值，图像捕获条件和包括射线照相日期的射线照相历史。

62. 发明授权

US09125619B2 Radiographic examination apparatus and method for the same 有权
标题翻译：射线检查仪器及方法相同
公开(公告)号：US09125619B2
公开(公告)日：2015-09-08
申请号：US13788942
申请日：2013-03-07
申请人： SHIMADZU CORPORATION
发明人： Katsuhiro Yabugami
IPC分类号： A61B6/00 , H05G1/34 , H05G1/22
CPC分类号： A61B6/485 , A61B6/405 , A61B6/487 , A61B6/542 , H05G1/22 , H05G1/34
摘要： A radiographic examination apparatus improves response to fluoroscopy or continuous shooting by changing promptly the power-output of an X-ray tube. The apparatus and method, when an absolute value of variation C per fixed time interval between the filament electric current of current pulse-output calculated by the filament electric current variation calculation element is more than a setup value, a flash control between pulse conducts increases or decreases temporarily the filament electric current between pulses to become the filament electric current on flash control between pulses calculated by a filament electric current calculation element based on a radiation condition of a current pulse-output and the radiation condition of following pulse-output.
摘要翻译：放射线检查装置通过迅速地改变X射线管的功率输出来改善对透视或连续拍摄的反应。该装置和方法，当由灯丝电流变化计算元件计算出的当前脉冲输出的灯丝电流之间的固定时间间隔的变化量C的绝对值大于设定值时，脉冲导通之间的闪光控制增加或基于电流脉冲输出的辐射条件和跟随脉冲输出的放射状态，暂时减少脉冲之间的灯丝电流，成为由灯丝电流计算元件计算的脉冲之间的闪光控制上的灯丝电流。

63. 发明申请

US20150163890A1 X-Ray Tube Assembly 有权
标题翻译： X射线管组件
公开(公告)号：US20150163890A1
公开(公告)日：2015-06-11
申请号：US14565629
申请日：2014-12-10
申请人： Stefan Setzer , Stephan Sons
发明人： Stefan Setzer , Stephan Sons
IPC分类号： H05G1/34 , H01J35/06
CPC分类号： H05G1/34 , H01J35/06
摘要： An x-ray tube assembly includes an x-ray tube with a vacuum envelope in which an emitter and an anode are arranged. The emitter is configured to be heated by an external coil emitter heating current supply. The emitter is configured as a flat emitter and an adaptation circuit is arranged between the flat emitter and the coil emitter heating current supply. A coil-emitter-based x-ray tube assembly may be replaced by a flat emitter-based x-ray tube assembly without constructional changes.
摘要翻译： X射线管组件包括具有真空外壳的x射线管，其中布置有发射器和阳极。发射极配置为通过外部线圈发热体加热电流加热。发射极配置为扁平发射极，并且在平面发射极和线圈发射极加热电流源之间设置适配电路。基于线圈发射器的X射线管组件可以由基于发射器的平板X射线管组件代替，而没有构造变化。

64. 发明授权

US08781074B2 Discharge module for high voltage x-ray tubes 有权
标题翻译：高压X射线管放电模块
公开(公告)号：US08781074B2
公开(公告)日：2014-07-15
申请号：US13260007
申请日：2009-03-25
申请人： Angel Diaz Carmena , Ildefonso Moreno Vallejo , Francisco Diaz Carmena
发明人： Angel Diaz Carmena , Ildefonso Moreno Vallejo , Francisco Diaz Carmena
IPC分类号： H05G1/34
CPC分类号： H05G1/34 , H05G1/10 , H05G1/265 , H05G1/56
摘要： Discharge module which is formed by three circuits, a control and measurement circuit for X-rays, a voltage division circuit between serial switches, which is independent from the previous one, and a third circuit of the charge short circuit, which in turn is formed by a successive or slave trip circuit of the switches and another main discharge circuit through the switches; due to the established configuration, a much improved radiation control is achieved as it is not affected by unforeseen agents, the short circuit current is not restricted to the port current of the switches, and residual voltage of the switches is reduced.
摘要翻译：由三个电路形成的放电模块，用于X射线的控制和测量电路，与上一个独立的串行开关之间的分压电路和继而形成的充电短路的第三电路通过开关的连续或从跳闸电路和通过开关的另一主放电电路; 由于建立的结构，由于不受不可预见的代理影响，所以实现了非常改进的辐射控制，短路电流不限于开关的端口电流，并且开关的剩余电压降低。

65. 发明授权

US07924981B2 X-ray generator 有权
标题翻译： X光发生器
公开(公告)号：US07924981B2
公开(公告)日：2011-04-12
申请号：US12444766
申请日：2007-08-30
申请人： Hirokazu Iijima , Jun Takahashi
发明人： Hirokazu Iijima , Jun Takahashi
IPC分类号： H05G1/34
CPC分类号： H05G1/26 , H05G1/12 , H05G1/34 , H05G1/46
摘要： A discharging part of an X-ray generator using a one-side earthed X-ray tube is earthed is identified on the basis of the tube voltage detected value and the tube current detected value. For the identification, the X-ray generator comprises a device comprising tube voltage decrease slope calculating means (S4), tube current increase calculating means (S4), first judging means (S5) for judging whether or not the slope of the tube voltage decrease exceeds its acceptable value, second judging means (S6) for judging whether or not the increase of the tube current exceeds its acceptable value, and discharge portion identifying means (S7, S8) for identifying the discharging part which is in the X-ray tube or a high-voltage generating unit on the basis of the results of the judgments made by the first and second judging means. The identified discharging part is displayed on display means (S9).
摘要翻译：基于管电压检测值和管电流检测值来识别使用单侧接地X射线管的X射线发生器的放电部分。为了识别，X射线发生器包括管电压降低斜率计算装置（S4），管电流增加计算装置（S4）的装置，用于判断管电压的斜率是否下降的第一判断装置（S5）超过其可接受值的第二判断装置（S6），用于判断管电流的增加是否超过其可接受值;以及用于识别X射线管中的放电部分的放电部分识别装置（S7，S8）或高电压产生单元，基于第一和第二判断装置的判断结果。识别的放电部分显示在显示装置上（S9）。

66. 发明申请

US20090316859A1 X-RAY GENERATOR 有权
标题翻译： X射线发生器
公开(公告)号：US20090316859A1
公开(公告)日：2009-12-24
申请号：US12444766
申请日：2007-08-30
申请人： Hirokazu Iijima , Jun Takahashi
发明人： Hirokazu Iijima , Jun Takahashi
IPC分类号： H05G1/34
CPC分类号： H05G1/26 , H05G1/12 , H05G1/34 , H05G1/46
摘要： A discharging part of an X-ray generator using a one-side earthed X-ray tube, i.e., the anode or cathode is earthed is identified on the basis of the tube voltage detected value and the tube current detected value. For the identification, the X-ray generator comprises a device comprising tube voltage decrease slope calculating means (S4) for calculating the slope of decrease with time of the tube voltage detected value, tube current increase calculating means (S4) for calculating the increase of the tube current detected value in a predetermined time, first judging means (S5) for judging whether or not the slope of the tube voltage decrease calculated in the tube voltage decrease slope calculating means exceeds its acceptable value, second judging means (S6) for judging whether or not the increase of the tube current calculated in the tube current increase calculating means exceeds its acceptable value, and discharge portion identifying means (S7, S8) for identifying the discharging part which is in the X-ray tube or a high-voltage generating unit on the basis of the results of the judgments made by the first and second judging means. The identified discharging part is displayed on display means (S9).Therefore, provided is a small-sized high-reliable X-ray generator having a function of identifying a discharging part with high accuracy.
摘要翻译：基于管电压检测值和管电流检测值来识别使用单侧接地X射线管即阳极或阴极接地的X射线发生器的放电部分。为了识别，X射线发生器包括用于计算管电压检测值随时间的减小斜率的管电压降低斜率计算装置（S4）的装置，用于计算增加的管电流增加计算装置（S4）在预定时间内的管电流检测值，用于判断在管电压降低斜率计算装置中计算的管电压降低的斜率是否超过其可接受值的第一判断装置（S5），用于判断在管电流增加计算装置中计算的管电流的增加是否超过其可接受值，以及用于识别X射线管中的放电部分的高电压的放电部分识别装置（S7，S8）基于由第一和第二判断装置作出的判断结果的发电单元。识别的放电部分显示在显示装置上（S9）。因此，提供了具有高精度地识别放电部的功能的小型高可靠性X射线发生器。

67. 发明授权

US07409043B2 Method and apparatus to control radiation tube focal spot size 有权
标题翻译：控制辐射管焦斑大小的方法和装置
公开(公告)号：US07409043B2
公开(公告)日：2008-08-05
申请号：US11439027
申请日：2006-05-23
申请人： Bruce Matthew Dunham , Jonathan Richard Schmidt , Sergio Lemaitre
发明人： Bruce Matthew Dunham , Jonathan Richard Schmidt , Sergio Lemaitre
IPC分类号： H05G1/32 , H05G1/34 , H05G1/46
CPC分类号： A61B6/032 , A61B6/027 , H01J35/14 , H05G1/26
摘要： A method for controlling focal spot size changes of an x-ray source in an imaging system includes measuring focal spot sizes as a function of a plurality of x-ray source operating parameters, determining a calibration table or transfer function utilizing the measured focal spot sizes as a function of the plurality of x-ray tube operating parameters, and utilizing the calibration table or transfer function to control focal spot size variations during operation of the imaging system.
摘要翻译：用于控制成像系统中的X射线源的焦点尺寸变化的方法包括测量作为多个x射线源操作参数的函数的焦斑尺寸，使用所测量的焦点尺寸确定校准表或传递函数作为多个x射线管操作参数的函数，并且利用校准表或传递函数来控制成像系统的操作期间的焦点尺寸变化。

68. 发明申请

US20080152089A1 Method and Apparatus for Determining and Displaying X-Ray Radiation by a Radiographic Device 有权
标题翻译：用于通过射线照相装置确定和显示X射线辐射的方法和装置
公开(公告)号：US20080152089A1
公开(公告)日：2008-06-26
申请号：US11960345
申请日：2007-12-19
申请人： Richard Quaas
发明人： Richard Quaas
IPC分类号： H05G1/34
CPC分类号： H05G1/46
摘要： Methods for determining and displaying x-ray radiation generated by a radiographic device may include storing in a memory a plurality of tables that correlate voltage and current values of an x-ray tube to a predicted radiation rate for a given radiographic device. Actual or approximate voltage and current values are then obtained from an operating x-ray tube. Based on these values, a predicted instant (or “dynamic”) radiation late is selected from one of the stored tables and is displayed to the practitioner. In addition, the method may approximate an accumulated radiation dose by measuring the time periods over which predicted radiation rates are generated and calculating a running total. Apparatus for conducting such methods is also disclosed.
摘要翻译：用于确定和显示由放射线照相装置产生的x射线辐射的方法可以包括在存储器中存储将X射线管的电压和电流值与给定射线照相装置的预测辐射速率相关联的多个表格。然后从操作的X射线管获得实际或近似的电压和电流值。基于这些值，从所存储的表中的一个中选择延迟的预测即时（或“动态”）辐射，并且向从业者显示。此外，该方法可以通过测量产生预测辐射速率的时间周期并计算运行总计来近似累积辐射剂量。还公开了用于进行这种方法的装置。

69. 发明申请

US20070258559A1 METHOD AND APPARATUS FOR ACHIEVING OPTIMAL RADIATION DOSE IN CORONARY CT ANGIOGRAPHY USING STANDARD DEVIATION OF CT NUMBER 有权
标题翻译：使用CT数标准偏差在冠状动脉造影中实现最佳辐射剂量的方法和装置
公开(公告)号：US20070258559A1
公开(公告)日：2007-11-08
申请号：US11738027
申请日：2007-04-20
申请人： Gham HUR
发明人： Gham HUR
IPC分类号： H05G1/60 , H05G1/34 , A61B6/00 , H05G1/50 , G01N23/00 , G21K1/12
CPC分类号： A61B6/504 , A61B6/032 , A61B6/4085 , A61B6/481 , A61B6/488 , A61B6/503 , A61B6/5288 , A61B6/541 , A61B6/542 , A61B6/544 , A61B6/583
摘要： A radiation dose modulation apparatus controls radiation dose in coronary CT angiography that utilizes an X-ray CT system including a multi-row detector. The apparatus is provided with a tube current modulation table storage unit which classifies standard deviation values of CT numbers calculated from a pre-contrast cardiac CT image into a number of levels, and stores a table in which the levels correspond to tube current modulation values, and a processing unit which calculates standard deviations of CT numbers from at least one pre-contrast cardiac image, identifies the tube current value corresponding to the standard deviations from the tube current modulation table, and controls a scan operation at the time of CT imaging for obtaining a post-contrast coronary image in accordance with the identified tube current value.
摘要翻译：辐射剂量调制装置控制利用包括多行检测器的X射线CT系统的冠状动脉CT血管造影术中的辐射剂量。该装置设置有管电流调制表存储单元，其将从对比度心脏CT图像计算的CT数的标准偏差值分类为多个级别，并且存储其中电平对应于管电流调制值的表，以及处理单元，其从至少一个对比度心脏图像计算CT数的标准偏差，识别与管电流调制表相对应的标准偏差的管电流值，并且控制CT成像时的扫描操作根据所鉴定的管电流值获得对照后冠状动脉成像。

70. 发明授权

US07142630B2 X-ray computed tomography apparatus with X-ray intensity control 有权
标题翻译：具有X射线强度控制的X射线计算机断层摄影装置
公开(公告)号：US07142630B2
公开(公告)日：2006-11-28
申请号：US11107901
申请日：2005-04-18
申请人： Tetsuro Suzuki
发明人： Tetsuro Suzuki
IPC分类号： H05G1/34
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。

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