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41. 发明申请

WO2013008685A1 放射線出力装置、放射線撮影システム及び放射線撮影方法审中-公开
标题翻译：辐射输出装置，放射学系统和放射学方法
公开(公告)号：WO2013008685A1
公开(公告)日：2013-01-17
申请号：PCT/JP2012/067007
申请日：2012-07-03
申请人：富士フイルム株式会社 , 岩切直人 , 大田恭義 , 西納直行 , 中津川晴康
发明人：岩切直人 , 大田恭義 , 西納直行 , 中津川晴康
IPC分类号： H05G1/70 , A61B6/00 , H05G1/26
CPC分类号： A61B6/4007 , A61B6/405 , A61B6/4064 , A61B6/5282 , A61B6/542 , A61B6/587 , H01J2235/068
摘要：　放射線撮影システム（１０）及び放射線撮影方法では、複数の放射線源（３０、３０ａ～３０ｈ）を有する放射線出力装置（１８）において、複数の放射線源（３０、３０ａ～３０ｈ）からの放射線（１６、１６ａ～１６ｈ）の出力順が隣同士にならないように、複数の放射線源（３０ａ～３０ｈ）から放射線（１６、１６ａ～１６ｈ）を出力する。
摘要翻译：在射线照相系统（10）和射线照相方法中，辐射输出装置（18）具有多个辐射源（30,30a-30h）。多个辐射源（30a-30h）输出辐射（16,16a-16h），使得来自多个辐射源（30,30a-30h）的辐射（16,17a-16h）的输出顺序不会变成相邻的人。

42. 发明申请

WO2012036496A9 ＤＣ 누설 전류를 보상하는 전하 감지 증폭 회로, 이를 이용한 엑스선 독출 집적 회로 및 엑스선 센서 审中-公开
公开(公告)号：WO2012036496A9
公开(公告)日：2012-03-22
申请号：PCT/KR2011/006836
申请日：2011-09-16
申请人： 주식회사 룩센테크놀러지 , 소명진 , 안태지
发明人： 소명진 , 안태지
IPC分类号： H03F3/70 , H03F3/45 , H05G1/26
摘要： 본 발명에 따른 전하 감지 회로는, 포토다이오드, 연산 증폭기, 피드백 커패시터와, 포토다이오드로부터 DC 누설 전류를 흘려보내는 누설 경로 트랜지스터 및 구동 전류를 제공하는 전류 생성부를 포함할 수 있다. 누설 경로 트랜지스터는 드레인과 소스가 포토다이오드 및 연산 증폭기의 음의 입력 단자와 전원 사이에 연결되고, 게이트 전압이 구동 전류의 일부가 흐르는 전류원 트랜지스터 및 보상 커패시터의 양단 전압에 의해 결정되도록 연결됨으로써, 포토다이오드에서 발생한 DC 누설 전류를 효과적으로 흘려 보낼 수 있다. 전류 생성부는 소스 디제네레이션 저항을 포함하여 전압, 온도의 변동에 대해 안정적으로 구동 전류를 생성할 수 있다.

43. 发明申请

WO2012036496A2 CHARGE SENSING AMPLIFIER CIRCUIT FOR COMPENSATING FOR DC LEAKAGE CURRENT, AND X-RAY READOUT INTEGRATED CIRCUIT AND X-RAY SENSOR USING SAME 审中-公开
标题翻译：用于补偿直流漏电流的充电感应放大器电路，以及使用相同的X射线读出集成电路和X射线传感器
公开(公告)号：WO2012036496A2
公开(公告)日：2012-03-22
申请号：PCT/KR2011006836
申请日：2011-09-16
申请人： LUXEN TECHNOLOGIES INC , SOH MYUNG JIN , AN TAI JI
发明人： SOH MYUNG JIN , AN TAI JI
IPC分类号： H03F3/70 , H03F3/45 , H05G1/26
CPC分类号： H03F3/087 , H03F3/45475 , H03F2203/45526
摘要： A charge sensing circuit according to the present invention includes a photodiode, an operational amplifier, a feedback capacitor, a leakage path transistor for allowing DC leakage current to flow from the photodiode, and a current generating unit for providing drive current. Since a drain and a source are connected between the photodiode and a negative input terminal of the operational amplifier and a power source, and also connected to allow a gate voltage to be determined by the voltage at both ends of a current source transistor where some of the drive current flows and a compensation capacitor, the leakage path transistor may effectively leak a DC leakage current occurring at the photodiode. The current generating unit may stably generate drive current against voltage and temperature variation because it includes a source degeneration resistance.
摘要翻译：根据本发明的电荷感测电路包括光电二极管，运算放大器，反馈电容器，用于允许DC漏电流从光电二极管流出的泄漏路径晶体管，以及用于提供驱动电流的电流产生单元。由于漏极和源极连接在运算放大器和电源的光电二极管和负输入端之间，并且还连接以允许栅极电压由电流源晶体管两端的电压确定，其中一些驱动电流流过补偿电容器，泄漏路径晶体管可能有效地泄漏在光电二极管处发生的直流泄漏电流。电流发生单元可以稳定地产生抵抗电压和温度变化的驱动电流，因为它包括源极退化电阻。

44. 发明申请

WO2008132635A3 X-RAY BEAM Z-AXIS POSITIONING 审中-公开
标题翻译： X射线光束Z轴定位
公开(公告)号：WO2008132635A3
公开(公告)日：2008-12-24
申请号：PCT/IB2008051175
申请日：2008-03-28
申请人： KONINKL PHILIPS ELECTRONICS NV , MILLER LESTER M , KAMATH JANARDHAN K , LUHTA RANDALL P
发明人： MILLER LESTER M , KAMATH JANARDHAN K , LUHTA RANDALL P
IPC分类号： A61B6/00 , A61B6/06 , A61B6/08 , G21K1/02 , H01J35/10 , H05G1/26 , H05G1/36 , H05G1/52
CPC分类号： A61B6/08 , A61B6/032 , A61B6/4021 , A61B6/4488 , H01J35/14 , H05G1/52
摘要： A medical imaging system includes an x-ray source (112) having a focal spot that emits radiation that traverses an examination region (108). The position of the focal spot along a longitudinal direction is a function of a temperature of one or more x-ray source components. The system further includes a detector (120) that detects the radiation and a collimator (116), disposed between the x-ray source (112) and the examination region (108), that collimates that radiation along the longitudinal direction. A focal spot position estimator (132) dynamically computes an estimated position of the focal spot along the longitudinal direction based on the temperature of one or more x-ray source components. A collimator positioner (128) positions the collimator (116) along the longitudinal direction based on the estimated focal spot position prior to performing a scan.
摘要翻译：医疗成像系统包括具有发射穿过检查区域（108）的辐射的焦斑的x射线源（112）。焦点沿着纵向方向的位置是一个或多个x射线源组件的温度的函数。该系统还包括检测辐射的检测器（120）和设置在x射线源（112）和检查区域（108）之间的准直器（116），沿着纵向方向准直该辐射。焦斑位置估计器（132）基于一个或多个x射线源分量的温度来动态地计算焦点沿着纵向方向的估计位置。准直器定位器（128）在执行扫描之前基于估计的焦斑位置沿着纵向方向定位准直器（116）。

45. 发明申请

WO2008132635A2 X-RAY BEAM Z-AXIS POSITIONING 审中-公开
标题翻译： X射线束Z轴定位
公开(公告)号：WO2008132635A2
公开(公告)日：2008-11-06
申请号：PCT/IB2008/051175
申请日：2008-03-28
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , MILLER, Lester, M. , KAMATH, Janardhan, K. , LUHTA, Randall, P.
发明人： MILLER, Lester, M. , KAMATH, Janardhan, K. , LUHTA, Randall, P.
IPC分类号： A61B6/00 , A61B6/08 , H05G1/36 , G21K1/02 , A61B6/06 , H05G1/26
CPC分类号： A61B6/08 , A61B6/032 , A61B6/4021 , A61B6/4488 , H01J35/14 , H05G1/52
摘要： A medical imaging system includes an x-ray source (112) having a focal spot that emits radiation that traverses an examination region (108). The position of the focal spot along a longitudinal direction is a function of a temperature of one or more x-ray source components. The system further includes a detector (120) that detects the radiation and a collimator (116), disposed between the x-ray source (112) and the examination region (108), that collimates that radiation along the longitudinal direction. A focal spot position estimator (132) dynamically computes an estimated position of the focal spot along the longitudinal direction based on the temperature of one or more x-ray source components. A collimator positioner (128) positions the collimator (116) along the longitudinal direction based on the estimated focal spot position prior to performing a scan.
摘要翻译：医学成像系统包括具有发射穿过检查区域（108）的辐射的焦斑的x射线源（112）。焦斑沿纵向的位置是一个或多个X射线源组件的温度的函数。该系统还包括检测辐射的检测器（120）以及设置在X射线源（112）和检查区域（108）之间的准直器（116），该准直器沿着纵向准直该辐射。焦斑位置估计器（132）基于一个或多个X射线源组件的温度动态地计算焦斑沿纵向方向的估计位置。准直器定位器（128）在执行扫描之前基于估计的焦斑位置沿着纵向方向定位准直器（116）。

46. 发明申请

WO2008050540A1 Ｘ線発生装置审中-公开
标题翻译： X射线发生器
公开(公告)号：WO2008050540A1
公开(公告)日：2008-05-02
申请号：PCT/JP2007/066933
申请日：2007-08-30
申请人：株式会社日立メディコ , 飯嶋浩和 , 高橋順
发明人：飯嶋浩和 , 高橋順
IPC分类号： H05G1/26 , A61B6/03 , H05G1/34
CPC分类号： H05G1/26 , H05G1/12 , H05G1/34 , H05G1/46
摘要：陽極又は陰極を接地する片側接地のX線管を用いたX線発生装置の放電箇所を管電圧検出値と管電流検出値とに基づいて特定する。この特定は、管電圧検出値の時間に対する減少の傾きを演算する管電圧減少傾き演算手段(S4)と、管電流検出値の所定時間内の増加分を演算する管電流増加分演算手段(S4)と、前記管電圧減少傾き演算手段で演算した管電圧減少の傾きがその許容値を超えたか否かを判断する第１の判断手段(S5)と、前記管電流増加分演算手段で演算した管電流の増加分がその許容値を超えたか否かを判断する第2の判断手段(S6)と、前記第１の判断手段と前記第2の判断手段との判断結果に基づいてX線管あるいは高電圧発生部のいずれで放電が発生したかの放電箇所を特定する放電箇所特定手段(S7、S8)とを備え、前記放電箇所特定手段で特定した放電箇所を表示手段に表示する(S9)。従って，放電箇所を高精度に特定できる機能を備えた小型で高信頼性のX線発生装置が得られる。
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的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，用于判断所计算的管电压降低的斜率是否超过其允许值的第一判断装置（S5），用于判断计算出的管电压降低的增加量的第二判断装置管电流超过其允许值;以及放电部分识别装置（S7，S8），用于基于由第一个或第二个的判断结果识别X射线管或高压发生单元中的放电部分和第二判断手段。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。

47. 发明申请

WO02039790A1 METHOD FOR CORRECTING STRAY RADIATION FOR AN X-RAY COMPUTER TOMOGRAPH SCANNER 审中-公开
标题翻译：杂散辐射校正程序，X线计算机设备
公开(公告)号：WO02039790A1
公开(公告)日：2002-05-16
申请号：PCT/DE2001/004147
申请日：2001-11-06
IPC分类号： A61B6/03 , G01N23/04 , G06T5/00 , H05G1/26
CPC分类号： A61B6/585 , A61B6/032 , A61B6/4085 , A61B6/4233 , A61B6/5282 , G01N23/046 , G01N2223/419 , G06T5/003 , G06T2207/10081 , H05G1/26
摘要： The invention relates to a method for correcting the stray radiation of measured radiation intensity values, which have been obtained in an X-ray computer tomograph scanner, by means of a detector matrix positioned in the tomography measuring field of said computer tomograph scanner. Said matrix contains a large number of detector elements arranged side by side in several detector lines lying one above the other. According to said method, at least one reference distribution of the stray radiation intensity is first determined in the direction of the detector matrix lines and a stray radiation component of each measured intensity value is then calculated from said reference distribution(s) and the measured intensity values are corrected, based on their respective stray radiation component. The stray radiation component of the measured intensity values of at least one portion of the detector lines is determined using a recursion method, based on the reference distribution.
摘要翻译：一种用于辐射强度的散射校正的方法测定其在X射线计算机断层摄影设备通过在计算机断层摄影设备检测器矩阵的断层测量场的装置包括多个在多个检测器元件的叠加探测器行的并置而得到的值。杂散辐射强度中的至少一个参考分布是首先在检测器阵列的行方向上确定的杂散辐射分量，然后，从该至少一个参考分布开始确定的每个测量的强度值和强度的测量值在其各自的散射分数依赖性进行校正。这里，至少探测器行的部分数的测量的强度值，使用递归方法的散射辐射分量的参考分布的基础上确定的。

48. 发明申请

WO98033361A1 VARIABLE CURRENT CT SCANNING 审中-公开
标题翻译：可变电流CT扫描
公开(公告)号：WO98033361A1
公开(公告)日：1998-07-30
申请号：PCT/IL1998/000038
申请日：1998-01-26
IPC分类号： A61B6/03 , H05G1/26 , H05G1/36
CPC分类号： A61B6/542 , A61B6/027 , A61B6/032 , H05G1/26 , H05G1/36
摘要： A method for adjusting radiation flux in a CT scanner, including acquiring radiation attenuation data with respect to a body being imaged by the scanner from a CT scan, in a vicinity of a first axial position along the body and determining a modulation function, dependent on radial view angle, based on the data. The body is translated relative to the scanner to a second axial position along the body, and a CT scan is performed in a vicinity of the second axial position, while controlling the radiation flux impinging on the body using the modulation function.
摘要翻译：一种用于调整CT扫描器中的辐射通量的方法，包括从CT扫描获取相对于由扫描仪成像的身体的辐射衰减数据，沿着身体的第一轴向位置附近获取辐射衰减数据，并且根据径向视角，根据数据。身体相对于扫描仪平移到沿着身体的第二轴向位置，并且在第二轴向位置附近执行CT扫描，同时使用调制功能控制照射在身体上的辐射通量。

49. 发明申请

WO2021122369A1 VOLTAGE STABILIZED X-RAY POWER SUPPLY 审中-公开
公开(公告)号：WO2021122369A1
公开(公告)日：2021-06-24
申请号：PCT/EP2020/085753
申请日：2020-12-11
申请人： KONINKLIJKE PHILIPS N.V.
发明人： GLEICH, Bernhard
IPC分类号： H05G1/20 , H05G1/26 , H05G1/32 , H05G1/265
摘要： Disclosed is a medical instrument (100, 200, 300, 400, 500, 700, 900) comprising an X-ray power supply (102, 102'). The X-ray power supply is configured to provide an output voltage that repeatedly switch between a first voltage and a second voltage. The X-ray power supply is configured for powering an X-ray tube (106) with the output voltage to produce X-rays, wherein switching between the first voltage and the second voltage generates an oscillating impulse voltage superimposed on output voltage. The oscillating impulse voltage has a ripple frequency. The medical instrument further comprises at least one voltage stabilizer circuit (104, 104', 104") for stabilizing the first voltage and the second voltage. The at least one voltage stabilizer circuit comprises an oscillator (110) and a transformer (112) configured for coupling to the output voltage. The oscillator is configured for oscillating at a voltage stabilizer frequency that matches the ripple frequency. The transformer comprises a magnetic core (112) configured for limiting coupling of the oscillating impulse voltage to the at least one voltage stabilizer circuit.

50. 发明申请

WO2020106404A1 TIMER CIRCUIT FOR X-RAY IMAGING SYSTEM 审中-公开
公开(公告)号：WO2020106404A1
公开(公告)日：2020-05-28
申请号：PCT/US2019/057756
申请日：2019-10-24
申请人： DEDICATED2IMAGING, LLC.
发明人： BAILEY, Eric , JOHNSON, Jeffrey
IPC分类号： A61B6/10 , A61B6/00 , H05G1/26 , H05G1/42
摘要： A timer circuit for an X-ray imaging system having an X-ray generator used to generate images of a patient. The circuit includes a current sensor connected between a main power system and a circuit interrupter, wherein the circuit interrupter is also connected to the X-ray generator. The circuit also includes a timing device coupled between the current sensor and a control computer. The timing device is triggered when a current level detected by the current sensor exceeds an idle current level wherein X-rays are not generated by the X-ray generator. The timing device then measures a time period that the idle current level is exceeded. When the measured time period exceeds a predetermined time period by 10%, the circuit interrupter is activated to turn off current flow to the X-ray generator.

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