-
公开(公告)号：US10238352B2
公开(公告)日：2019-03-26
申请号：US15168274
申请日：2016-05-31
申请人： Jörg Freudenberger
发明人： Jörg Freudenberger
摘要： A method for generating x-ray images of an examination object is described. In the method, x-rays are emitted in a direction of an x-ray detector, wherein an examination object is arranged between the x-ray detector and an x-ray source emitting the x-rays. An anti-scatter grid, which is arranged between the examination object and the x-ray detector, is moved across the detection surface of the x-ray detector. X-ray detector signals are acquired with temporal and spatial resolution, the x-ray detector signals including the intensity of the x-rays incident on the x-ray detector. The x-ray detector signals are evaluated taking into account a temporal variation of the acquired intensity of the x-ray detector signals caused by the movement of the anti-scatter grid. An x-ray imaging apparatus is also described.
-
公开(公告)号：US20160354046A1
公开(公告)日：2016-12-08
申请号：US15168274
申请日：2016-05-31
申请人： Jörg Freudenberger
发明人： Jörg Freudenberger
IPC分类号： A61B6/00
CPC分类号： A61B6/4291 , A61B6/5252
摘要： A method for generating x-ray images of an examination object is described. In the method, x-rays are emitted in a direction of an x-ray detector, wherein an examination object is arranged between the x-ray detector and an x-ray source emitting the x-rays. An anti-scatter grid, which is arranged between the examination object and the x-ray detector, is moved across the detection surface of the x-ray detector. X-ray detector signals are acquired with temporal and spatial resolution, the x-ray detector signals including the intensity of the x-rays incident on the x-ray detector. The x-ray detector signals are evaluated taking into account a temporal variation of the acquired intensity of the x-ray detector signals caused by the movement of the anti-scatter grid. An x-ray imaging apparatus is also described.
摘要翻译： 描述了一种用于产生检查对象的X射线图像的方法。 在该方法中，x射线在X射线检测器的方向上发射，其中检查对象被布置在x射线检测器和发射x射线的x射线源之间。 布置在检查对象和X射线检测器之间的防散射格栅移动穿过X射线检测器的检测表面。 X射线检测器信号采用时间和空间分辨率获取，X射线检测器信号包括入射在X射线检测器上的X射线的强度。 考虑由防散射栅格的运动引起的x射线检测器信号获取的强度的时间变化来评估x射线检测器信号。 还描述了一种X射线成像装置。
-
公开(公告)号：US20160113610A1
公开(公告)日：2016-04-28
申请号：US14919926
申请日：2015-10-22
申请人： Jörg Freudenberger
发明人： Jörg Freudenberger
CPC分类号： A61B6/484 , A61B6/0407 , A61B6/0492 , A61B6/4035 , A61B6/4291 , A61B6/5235
摘要： A device for slot scanning phase contrast x-ray imaging, includes an x-ray emitter, a plurality of x-ray gratings, a patient couch, and an x-ray detector. Position marker elements are arranged and configured in the beam path of the x-ray emitter such that the position marker elements are visible in an x-ray image. In the x-ray image, a relative position of an object on the patient couch in relation to an x-ray beam fan of the x-ray emitter may be established from a location and a distance of the position marker elements from one another.
摘要翻译： 用于槽扫描相位对比度x射线成像的装置包括x射线发射器，多个x射线光栅，患者沙发和x射线检测器。 位置标记元件被布置和配置在x射线发射器的光束路径中，使得位置标记元件在x射线图像中是可见的。 在x射线图像中，可以从位置标记元件彼此的位置和距离建立相对于x射线发射器的X射线束风扇的患者床上的物体的相对位置。
-
公开(公告)号：US09257255B2
公开(公告)日：2016-02-09
申请号：US14176144
申请日：2014-02-09
IPC分类号： H01J35/10
CPC分类号： H01J35/105 , H01J35/101 , H01J35/106 , H01J2235/1006 , H01J2235/1283
摘要： A single-pole x-ray emitter includes an emitter housing, in which an x-ray tube with a vacuum housing and a drive motor are arranged. A cathode that generates an electron beam, and a rotating anode that is struck by the electron beam along a focal path are arranged in the vacuum housing. The vacuum housing includes a drive-side housing wall and an anode-side housing wall, and the rotating anode is held in a torsionally rigid manner on an anode tube that is rotatably mounted on a stationary part of a rotor shaft that is coupled to the drive motor. The stationary part of the rotor shaft is joined to the anode-side housing wall of the vacuum housing via a ring-shaped fixing. The anode tube incorporates a temperature compensation element. The focal path is arranged on a side of the rotating anode that faces away from the anode-side housing wall.
摘要翻译： 单极x射线发射器包括发射器壳体，其中布置有具有真空壳体的X射线管和驱动马达。 产生电子束的阴极和沿着焦点路径被电子束撞击的旋转阳极设置在真空壳体中。 真空壳体包括驱动侧容纳壁和阳极侧壳体壁，并且旋转阳极以扭转刚性的方式保持在阳极管上，该阳极管可旋转地安装在转子轴的固定部分上，该转子轴连接到 驱动电机。 转子轴的固定部分经由环形固定件连接到真空壳体的阳极侧壳体壁。 阳极管包括温度补偿元件。 焦点路径布置在旋转阳极的远离阳极侧壳体壁的一侧。
-
公开(公告)号：US20140239799A1
公开(公告)日：2014-08-28
申请号：US14178314
申请日：2014-02-12
申请人： Jörg Freudenberger , Jens Fürst , Freddy Güthlein , Giovanni Laporta , Gunter Röhrich , Matthias Seufert
发明人： Jörg Freudenberger , Jens Fürst , Freddy Güthlein , Giovanni Laporta , Gunter Röhrich , Matthias Seufert
IPC分类号： H01J1/18
摘要： A flat emitter is disclosed. In an embodiment, the flat emitter includes an emitter surface, which upon application of a heating voltage, emits electrons; a first end area, which has a first support rod; and a second end area, which has a second support rod. At least one first support rod has a narrow section extending in a longitudinal direction and is bonded to the first end area or a second support rod, which has a narrow section extending in a longitudinal direction and is bonded to the second end area. A flat emitter of this kind is structurally simple and offers a high level of electron emission at the same time as a longer useful life.
摘要翻译： 公开了一种扁平发射器。 在一个实施例中，扁平发射器包括发射体表面，其在施加加热电压时发射电子; 第一端部区域，其具有第一支撑杆; 以及具有第二支撑杆的第二端部区域。 至少一个第一支撑杆具有沿纵向方向延伸的窄部分并且结合到第一端部区域或第二支撑杆，该第二支撑杆具有沿纵向方向延伸并且接合到第二端部区域的窄部分。 这种平坦的发射器在结构上是简单的，并且在更长的使用寿命的同时提供高水平的电子发射。
-
公开(公告)号：US07315610B2
公开(公告)日：2008-01-01
申请号：US11737292
申请日：2007-04-19
申请人： Jörg Freudenberger , Peter Schardt
发明人： Jörg Freudenberger , Peter Schardt
IPC分类号： G21K5/10
CPC分类号： A61B6/502 , A61B6/4021 , G21K1/04
摘要： In a method for operating an x-ray device, an x-ray beam is generated at a focal spot of a rotary anode that is rotatable around a rotation axis, and the x-ray beam is gated with a slit-shaped diaphragm to produce a fan-shaped x-ray beam, that is moved through an examination region in the manner of a scan. To improve the image resolution, the fan-shaped x-ray beam can be moved over the examination region essentially in the direction of the rotational axis of the rotary anode by tilting the x-ray tube on the focal spot, with the x-ray tube being tilted on the focal spot so that the fan-shaped x-ray beam is always gated from the region of the overall emitted x-ray beam having the highest image resolution or the highest image definition in the movement through the examination region.
摘要翻译： 在用于操作x射线装置的方法中，在可围绕旋转轴线旋转的旋转阳极的焦点处产生x射线束，并且X射线束被切割形状的隔膜浇注以产生 以扫描的方式移动通过检查区域的扇形X射线束。 为了提高图像分辨率，通过使x射线管在焦点上倾斜，可以使基本上在旋转阳极的旋转轴线的方向上的扇形X射线束移动到检查区域上 管子在焦斑上倾斜，使得扇形X射线束总是从具有最高图像分辨率的全面发射的x射线束的区域或通过检查区域的移动中的最高图像定义选通。
-
17.发明授权公开(公告)号：US07443957B2
公开(公告)日：2008-10-28
申请号：US11545666
申请日：2006-10-10
IPC分类号： H01J35/12
CPC分类号： H01J35/106 , H01J35/12 , H01J2235/1204 , H01J2235/1262 , H05G1/025
摘要： An x-ray apparatus has a cooling device for cooling of the anode, through which cooling device cooling fluid flows. To improve the cooling effect, the coolant is water and a pressure generation device is provided for generation of a water pressure of more than 1.1 bar acting at least in a region of the anode to be cooled.
摘要翻译： X射线装置具有用于冷却阳极的冷却装置，冷却装置冷却流体通过冷却装置流动。 为了提高冷却效果，冷却剂是水，并且提供压力产生装置用于产生至少在要冷却的阳极的区域中大于1.1巴的水压。
-
公开(公告)号：US07430279B2
公开(公告)日：2008-09-30
申请号：US11545371
申请日：2006-10-10
IPC分类号： H01J35/10
CPC分类号： H01J35/305 , H01J35/18
摘要： A rotating envelope tube has a housing which with an x-ray exit window that is essentially transparent for x-ray radiation. To improve the mechanical stability, the x-ray exit window internally exhibits a structure through which cooling fluid can flow.
摘要翻译： 旋转信封管具有壳体，其具有对于X射线辐射基本上是透明的x射线出射窗。 为了提高机械稳定性，X射线出射窗内部表现出冷却流体可以流过的结构。
-
19.发明授权公开(公告)号：US07025502B2
公开(公告)日：2006-04-11
申请号：US10841151
申请日：2004-05-07
申请人： Jörg Freudenberger , Peter Schardt
发明人： Jörg Freudenberger , Peter Schardt
IPC分类号： H01J35/12
CPC分类号： H01J35/305 , H01J35/101 , H01J35/106 , H01J2235/1046 , H01J2235/1208
摘要： To reduce the rotational power, an apparatus with a rotational body that is rotationally driven in a fluid-filled housing a rotational directing body is provided between the rotational body and the housing, which is rotatably supported coaxially with respect to the rotational body. The rotational directing body is configured such that in operation it rotates at an intermediate rotational frequency in comparison to the housing and the rotational body. The apparatus is particularly an X-ray radiator having a cathode and anode that are mounted in a vacuum tube in a spatially fixed manner in relation to the tube, the vacuum tube being rotationally driven as a rotational body in a coolant housing.
摘要翻译： 为了减小旋转动力，具有旋转体的装置被设置在旋转体和壳体之间，旋转体在流体填充的壳体中被旋转地驱动，旋转体与旋转体相对于旋转体同轴地可旋转地支撑。 旋转引导体被构造成使得在操作中它与壳体和旋转体相比以中间的旋转频率旋转。 该装置特别是具有阴极和阳极的X射线辐射体，该阴极和阳极相对于管以空间固定的方式安装在真空管中，真空管作为旋转体旋转地驱动在冷却剂壳体中。
-
公开(公告)号：US09949705B2
公开(公告)日：2018-04-24
申请号：US14919926
申请日：2015-10-22
申请人： Jörg Freudenberger
发明人： Jörg Freudenberger
CPC分类号： A61B6/484 , A61B6/0407 , A61B6/0492 , A61B6/4035 , A61B6/4291 , A61B6/5235
摘要： A device for slot scanning phase contrast x-ray imaging, includes an x-ray emitter, a plurality of x-ray gratings, a patient couch, and an x-ray detector. Position marker elements are arranged and configured in the beam path of the x-ray emitter such that the position marker elements are visible in an x-ray image. In the x-ray image, a relative position of an object on the patient couch in relation to an x-ray beam fan of the x-ray emitter may be established from a location and a distance of the position marker elements from one another.
-
-
-
-
-
-
-
-
-
搜索结果
31 条记录 (耗时 0.033 秒)