会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • X-Ray Examination System with Integrated Actuator Means for Performing Translational and/or Rotational Disuplacement Movements of at Least One X-Radiation Emitting Anode's Focal Spot Relative to a Stationary Reference Position and Means for Compensating Resulting Parallel and/or Angular Shifts of the Emitted X-Ray Beams
    • 具有集成执行器装置的X射线检查系统,用于执行相对于固定参考位置和补偿装置的至少一个X射线发射阳极焦点的平移和/或旋转放大运动
    • WO2009136349A2
    • 2009-11-12
    • PCT/IB2009/051814
    • 2009-05-04
    • PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHKONINKLIJKE PHILIPS ELECTRONICS N.V.VOGTMEIER, GereonPIETIG, RainerLEWALTER, AstridBEHLING, Rolf K. O.
    • VOGTMEIER, GereonPIETIG, RainerLEWALTER, AstridBEHLING, Rolf K. O.
    • A61B6/03H01J35/24
    • H01J35/14A61B6/032A61B6/4021A61B6/4028A61B6/4085A61B6/4488H01J35/26H01J35/30
    • The present invention refers to X-ray systems for use in high-resolution imaging applications with an improved power rating and, more particularly, to a variety of system configurations for an X-ray based image acquisition system using an X-ray source of the rotary anode type or, alternatively, an array of spatially distributed X-ray sources fabricated in carbon nanotube (CNT) technology, thus allowing higher sampling rates for an improved temporal resolution of acquired CT images as needed for an exact reconstruction of fast moving objects (such as e.g. the myocard) from a set of acquired 2D projection data. According to the present invention, each X-ray source comprises at least one integrated actuator unit (206, 206', 206a or 206b) for performing at least one translational and/or rotational displacement by moving the position of the X-ray source's anode (204, 204', 204a' or 204b') relative to a stationary reference position, wherein the latter may e.g. be given by a mounting plate (207, 207a or 207b) or an electron beam emitting cathode (201, 201a or 201b) which provides an electron beam (202, 202a or 202b) impinging on said anode. This helps to overcome power limitations due to an overheating of the anode at its focal spot position (205). In addition to that, a focusing unit (203) for allowing an adapted focusing of the anode's focal spot (205) which compensates deviations in the focal spot size resulting from said anode displacements and/or a deflection means (211, 21 Ia or 21 Ib) for generating an electric and/or magnetic field deflecting the electron beam (202, 202a or 202b) in a direction opposite to the direction of the rotary anode's displacement movement may be provided.
    • 本发明涉及用于具有改进的额定功率的高分辨率成像应用中的X射线系统,更具体地,涉及使用X射线源的基于X射线的图像采集系统的各种系统配置 旋转阳极类型或者替代地,以碳纳米管(CNT)技术制造的空间分布的X射线源的阵列,从而允许更高的采样速率,以用于快速移动物体的精确重建所需的所获取CT图像的时间分辨率( 例如心肌)从一组获取的2D投影数据中获取。 根据本发明,每个X射线源包括至少一个集成致动器单元(206,206',206a或206b),用于通过移动X射线源的阳极的位置来执行至少一个平移和/或旋转位移 (204,204',204a'或204b'),其中后者可以例如 由安装板(207,207a或207b)或电子束发射阴极(201,201a或201b)提供,其提供撞击在所述阳极上的电子束(202,202a或202b)。 这有助于克服由于阳极在其焦点位置(205)处的过热而引起的功率限制。 除此之外,聚焦单元(203)用于允许补偿阳极焦点(205)的适应聚焦,其补偿由所述阳极位移引起的焦点尺寸偏差和/或偏转装置(211,211a或21 可以提供用于产生沿着与旋转阳极的位移运动的方向相反的方向偏转电子束(202,202a或202b)的电和/或磁场的电流(Ib)。
    • 3. 发明申请
    • COMPUTED TOMOGRAPHY SCANNER APPARATUS AND METHOD FOR CT-BASED IMAGE ACQUISITION BASED ON SPATIALLY DISTRIBUTED X-RAY MICROSOURCES OF THE CONE-BEAM TYPE
    • 计算机图像扫描仪装置和基于CT的图像采集方法基于空间分布的锥形X射线微观结构
    • WO2009115982A1
    • 2009-09-24
    • PCT/IB2009/051083
    • 2009-03-17
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHVOGTMEIER, GereonBREDNO, JoergPIETIG, RainerGRASS, MichaelOVERDICK, Michael
    • VOGTMEIER, GereonBREDNO, JoergPIETIG, RainerGRASS, MichaelOVERDICK, Michael
    • G01N23/04A61B6/03
    • A61B6/032A61B6/027A61B6/4085A61B6/503A61B6/508A61B6/587H01J35/065H01J2235/068
    • The present invention refers to distributed X-ray source computed tomography (CT) based imaging systems and, more particularly, to a CT scanner apparatus and method for a CT-based image acquisition and 3D reconstruction using stationary, partly stationary or non-stationary source-detector setup geometries with at least one detector ring fixedly attached to a gantry (101) and a number of contiguous or partly contiguous radiator arrays (RA 1 , RA 2 , …, RA N ),each comprising a number of spatially distributed X-ray microsources (R, MS) of the cone-beam type, which may preferably be fabricated in carbon nanotube (CNT) technology, thus allowing higher sampling rates for an improved temporal resolution of acquired CT images as needed for an exact reconstruction of fast moving objects (such as e.g. the myocard) from a set of acquired projection data. Different arrangements of CNT-type radiator or source arrays (RA 1 , RA 2 , …, RA N ) and detector arrays (DA 1 , DA 2 , …, DA N ) as described with reference to exemplary embodiments of the present invention are proposed which, within improved sampling constraints as mentioned above, serve to enhance the spatial resolution of the reconstructed images by reducing artifacts that may result from missing or partial available image acquisition data.
    • 本发明涉及基于分布式X射线源计算机断层摄影(CT)的成像系统,更具体地,涉及一种用于基于CT的图像采集和使用静止,部分静止或非静止源的3D重建的CT扫描仪装置和方法 - 检测器设置几何形状,其中至少一个检测器环固定地连接到台架(101)和多个连续或部分相邻的辐射器阵列(RA1,RA2,RAN),每个辐射器阵列包括多个空间分布的X射线微源 锥形束类型,其可以优选地以碳纳米管(CNT)技术制造,因此允许更高的采样率,用于对快速移动物体的精确重建所需的所获得的CT图像的改善的时间分辨率(例如 例如心肌)从一组获得的投影数据。 提出了如参考本发明的示例性实施例所描述的CNT型散热器或源阵列(RA1,RA2,RAN)和检测器阵列(DA1,DA2,DAN)的不同布置,其在改进的采样约束 如上所述,用于通过减少可能由缺失或部分可用图像采集数据导致的伪像来增强重建图像的空间分辨率。
    • 4. 发明申请
    • MULTIPLE FOCAL SPOT X-RAY RADIATION FILTERING
    • 多重焦点点X射线辐射滤波
    • WO2012168832A1
    • 2012-12-13
    • PCT/IB2012/052703
    • 2012-05-30
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHVOGTMEIER, GereonPIETIG, RainerLOEF, ChristophDUERR, Martin, KimutaiCARLSON, Gerald, James
    • VOGTMEIER, GereonPIETIG, RainerLOEF, ChristophDUERR, Martin, KimutaiCARLSON, Gerald, James
    • G21K1/04G21K1/10
    • G21K1/08G01N23/04G21K1/025G21K1/10H01J35/08H01J35/30
    • The present invention relates to filtering of X-ray radiation generated at multiple focal spots. For the generation of multiple-energy X-ray radiation, an X-ray tube (10) for generating multiple-energy X-ray radiation is provided that comprises an anode (12) and a filter unit (14). The anode comprises at least a first (16) and a second focal spot position (18), which are offset from each other in an offset direction (20) transverse to an X-ray radiation projection direction. The filter unit comprises a first plurality (22) of first portions (24) with first filtering characteristics for X-ray radiation and a second plurality (26) of second portions (28) with second filtering characteristics for X-ray radiation, wherein the filter unit is a directional filter adapted in a such a way that at least a first part of a first X-ray beam (30) emanating from the first focal spot position at least partly passes through the filter unit via the first portions, and at least a second part of a second X-ray beam (32) emanating from the second focal spot position passes the second portions when passing through the filter unit. The second part of the second X-ray beam is larger than the first part of the first X-ray beam. A portion of the parts of the first X-ray beam, which pass through the filter unit via the first portions, and a portion of the second X-ray beam, which passes the second portions when passing through the filter unit, pass through a common area of the filter unit.
    • 本发明涉及在多个焦斑处产生的X射线辐射的过滤。 为了产生多能量X射线辐射,提供了一种用于产生多能量X射线辐射的X射线管(10),其包括阳极(12)和过滤器单元(14)。 阳极包括至少第一焦点位置(18)和第二焦斑位置(18),它们在横向于X射线辐射投影方向的偏移方向(20)上彼此偏移。 过滤器单元包括具有用于X射线辐射的第一滤波特性的第一部分(22)的第一多个(22)和具有用于X射线辐射的第二滤波特性的第二多个第二部分(26),其中, 过滤器单元是一种定向过滤器,其适于使得从第一焦斑位置发出的第一X射线束(30)的至少第一部分至少部分地经由第一部分通过过滤器单元,并且在 从第二焦点位置发出的第二X射线束(32)的最少第二部分在通过过滤器单元时通过第二部分。 第二X射线束的第二部分大于第一X射线束的第一部分。 通过第一部分的第一X射线束的部分通过过滤器单元的部分和当通过过滤器单元时通过第二部分的第二X射线束的一部分穿过一个 过滤器单元的公共区域。
    • 6. 发明申请
    • SCANNING SYSTEM FOR DIFFERENTIAL PHASE CONTRAST IMAGING
    • 扫描系统进行差分相位成像
    • WO2011070519A1
    • 2011-06-16
    • PCT/IB2010/055662
    • 2010-12-08
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHENGEL, Klaus JürgenGELLER, DieterVOGTMEIER, GereonKOEHLER, Thomas
    • ENGEL, Klaus JürgenGELLER, DieterVOGTMEIER, GereonKOEHLER, Thomas
    • A61B6/00
    • A61B6/00A61B6/032A61B6/4291A61B6/484A61B6/488A61B6/5241
    • The invention relates to the field of X-ray differential phase contrast imaging. For scanning large objects and for an improved contrast to noise ration, an X-ray device (10) for imaging an object (18) is provided. The X-ray device (10) comprises an X-ray emitter arrangement (12) and an X-ray detector arrangement (14), wherein the X-ray emitter arrangement (14) is adapted to emit an X-ray beam (16) through the object (18) onto the X-ray detector arrangement (14). The X-ray beam (16) is at least partial spatial coherent and fan- shaped. The X-ray detector arrangement (14) comprises a phase grating (50) and an absorber grating (52). The X-ray detector arrangement (14) comprises an area detector (54) for detecting X- rays, wherein the X-ray device is adapted to generate image data from the detected X-rays and to extract phase information from the X-ray image data, the phase information relating to a phase shift of X-rays caused by the object (18). The object (18) has a region of interest (32) which is larger than a detection area of the X-ray detector (18) and the X-ray device (10) is adapted to generate image data of the region of interest (32) by moving the object (18) and the X-ray detector arrangement (14) relative to each other.
    • 本发明涉及X射线差分相位成像领域。 为了扫描大型物体并改善与噪音比较的对比度,提供了用于对物体(18)成像的X射线装置(10)。 X射线装置(10)包括X射线发射器装置(12)和X射线检测器装置(14),其中X射线发射器装置(14)适于发射X射线束(16) )通过物体(18)到X射线检测器装置(14)上。 X射线束(16)至少是部分空间相干和扇形的。 X射线检测器装置(14)包括相位光栅(50)和吸收光栅(52)。 X射线检测器装置(14)包括用于检测X射线的区域检测器(54),其中X射线装置适于从检测到的X射线产生图像数据,并从X射线 图像数据,与由对象(18)引起的X射线的相移相关的相位信息。 物体(18)具有大于X射线检测器(18)的检测区域的感兴趣区域(32),并且X射线装置(10)适于产生感兴趣区域的图像数据( 32)通过相对于彼此移动物体(18)和X射线检测器装置(14)。
    • 9. 发明申请
    • CALIBRATION OF DIFFERENTIAL PHASE-CONTRAST IMAGING SYSTEMS
    • 差分相位成像系统的校准
    • WO2011070521A1
    • 2011-06-16
    • PCT/IB2010/055664
    • 2010-12-08
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHVOGTMEIER, GereonENGEL, Klaus JürgenGELLER, DieterKOEHLER, ThomasROESSL, Ewald
    • VOGTMEIER, GereonENGEL, Klaus JürgenGELLER, DieterKOEHLER, ThomasROESSL, Ewald
    • A61B1/00
    • A61B6/4291A61B6/4092A61B6/484A61B6/583G21K2207/005
    • The present invention relates to an X-ray imaging system and a method for differential phase - contrast imaging of an object. To improve calibration of differential phase - contrast imaging systems and the alignment of the gratings an X-ray imaging system is provided that comprises an X-ray emitting arrangement providing at least partially coherent X-ray radiation and an X-ray detection arrangement comprising a phase- shift diffraction grating, a phase analyzer grating, and an X-ray image detector, all arranged along an optical axis. For stepping, the gratings and/or the X-ray emitting arrangement are provided with at least two actuators arranged opposite to each other with reference to the optical axis. For calibration, calibration projections are acquired without an object, wherein, the emitted X-ray radiation or one of the gratings is stepwise displaced with a calibration displacement value. For examination, measurement projections are acquired with an object, wherein the emitted X-ray radiation or one of the gratings is stepwise displaced with a measurement, a calibration projection is associated to each of the measurement projections by registering the latter with the calibration projections.
    • 本发明涉及一种用于对象的差分相位对比成像的X射线成像系统和方法。 为了改进差分相位对比成像系统的校准和光栅的对准,提供了一种X射线成像系统,其包括提供至少部分相干X射线辐射的X射线发射装置和包括 相移衍射光栅,相位分析仪光栅和X射线图像检测器,均沿光轴排列。 对于步进,光栅和/或X射线发射装置设置有相对于光轴彼此相对布置的至少两个致动器。 对于校准,在没有物体的情况下获取校准投影,其中,所发射的X射线辐射或其中一个光栅以校准位移值逐步位移。 为了进行检查,用物体获取测量投影,其中所发射的X射线辐射或其中一个光栅通过测量而逐步移位,通过将校准投影与校准投影相对应地将校准投影与每个测量投影相关联。