公开(公告)号：US07486770B2

公开(公告)日：2009-02-03

申请号：US11700172

申请日：2007-01-31

Applicant: Joachim Baumann ,  Christian David ,  Martin Engelhardt ,  Jorg Freudenberger ,  Eckhard Hempel ,  Martin Hoheisel ,  Thomas Mertelmeier ,  Franz Pfeiffer ,  Stefan Popescu ,  Manfred Schuster

Inventor： Joachim Baumann ,  Christian David ,  Martin Engelhardt ,  Jorg Freudenberger ,  Eckhard Hempel ,  Martin Hoheisel ,  Thomas Mertelmeier ,  Franz Pfeiffer ,  Stefan Popescu ,  Manfred Schuster

IPC: G01N23/04

CPC classification number: G21K1/06 ,  A61B6/032 ,  A61B6/06 ,  A61B6/4092 ,  A61B6/4233 ,  A61B6/4291 ,  A61B6/484 ,  G21K2207/005

Abstract: A focus-detector arrangement includes a radiation source with a focus, arranged on a first side of the subject, for generating a fan-shaped or conical beam of rays; at least one X-ray optical grating arranged in the beam path, with at least one phase grating arranged on the opposite second side of the subject in the beam path generating an interference pattern of the X-radiation preferably, in a particular energy range; and an analysis-detector system which detects at least the interference pattern generated by the phase grating in respect of its phase shift with position resolution. According to at least one embodiment of the invention, at least one X-ray optical grating including bars which are free from overhangs form shadows in the beam path of the fan-shaped or conical beam of rays.

Abstract translation: 焦点检测器装置包括布置在被摄体的第一侧上的具有焦点的辐射源，用于产生扇形或锥形的射线束; 布置在所述光束路径中的至少一个X射线光栅，其中至少一个相位光栅布置在所述束路径中的所述对象的相对的第二侧上，优选地在特定能量范围内产生所述X射线的干涉图案; 以及分析检测器系统，其至少检测相位光栅相对于其相移与位置分辨率产生的干涉图案。 根据本发明的至少一个实施例，至少一个X射线光栅，其包括不具有突出端的杆，在扇形或锥形光束的光束路径中形成阴影。

公开(公告)号：US07298882B2

公开(公告)日：2007-11-20

申请号：US11058025

申请日：2005-02-15

Applicant: Philipp Bernhardt ,  Lothar Bätz ,  Ernst-Peter Rührnschopf ,  Martin Hoheisel

Inventor： Philipp Bernhardt ,  Lothar Bätz ,  Ernst-Peter Rührnschopf ,  Martin Hoheisel

IPC: G06T5/00

CPC classification number: G06T7/0002 ,  A61B5/02007 ,  A61B5/7257 ,  A61B6/12 ,  A61B6/4291

Abstract: A method for defining image quality characteristics of X-ray based medical projection imaging devices is provided. A spatial frequency-dependent signal-to-noise ratio function includes image quality parameters of spatial resolution, object contrast and noise. The detectability of an object embedded into a defined background, such as a cardiac guide wire in a patient is determined. An X-ray system may be defined and set up for obtaining an optimized image quality to determine the best object detectability for a given patient dose.

Abstract translation: 提供了一种用于定义基于X射线的医疗投影成像装置的图像质量特性的方法。 空间频率相关信噪比函数包括空间分辨率，对象对比度和噪声的图像质量参数。 确定嵌入到定义的背景中的对象的可检测性，例如患者中的心导丝。 可以定义和设置X射线系统以获得优化的图像质量，以确定给定患者剂量的最佳对象检测能力。

公开(公告)号：US07209547B2

公开(公告)日：2007-04-24

申请号：US10970605

申请日：2004-10-21

Applicant: Florian Baier ,  Martin Hoheisel

Inventor： Florian Baier ,  Martin Hoheisel

IPC: G21K1/02

CPC classification number: A61B6/032 ,  A61B6/06 ,  A61B6/4085 ,  A61N5/1042 ,  B33Y80/00 ,  G21K1/025 ,  G21K1/04

Abstract: An apparatus for spatial modulation of an x-ray beam has a number of planar attenuation elements for x-ray radiation that are disposed in a grid on a carrier and can be pivoted or tilted by a piezoelectric actuator, independently of one another, between at least two positions. One or more sensors with which a piezoelectrically-caused length and/or width and/or position change of the piezoelectrically influenced regions can be detected, are arranged on piezoelectrically influenced regions of the attenuation elements or the actuators. A significant dose reduction and/or dynamic adjustment thereof can be achieved with the apparatus by image adaptation in many areas of x-ray imaging, since a precise determination of the position of each attenuation element in real time is enabled.

Abstract translation: 用于x射线束的空间调制的装置具有多个用于x射线辐射的平面衰减元件，其被布置在载体上的栅格中，并且可以彼此独立地由压电致动器枢转或倾斜，处于 至少两个职位。 能够检测压电影响区域的压电引起的长度和/或宽度和/或位置变化的一个或多个传感器被布置在衰减元件或致动器的压电影响区域上。 由于能够实时精确地确定每个衰减元件的位置，所以可以通过在x射线成像的许多区域中的图像适应来实现该设备的显着剂量减小和/或动态调整。

公开(公告)号：US20070009698A1

公开(公告)日：2007-01-11

申请号：US11481665

申请日：2006-07-06

Applicant: Martin Hoheisel

Inventor： Martin Hoheisel

IPC: B32B33/00

CPC classification number: A61B46/10 ,  A61B90/40 ,  B29C63/0056 ,  Y10T428/14

Abstract: The invention relates to a device for protecting a display facility, comprising a protective element for covering an image surface of the display facility. As the protective element is designed to be transparent and the retaining means are provided for the exchangeable arrangement of the protective element in front of the image surface, a protective device is provided, which allows the image surface to be examined and is easy to operate.

Abstract translation: 本发明涉及一种用于保护显示设备的设备，包括用于覆盖显示设备的图像表面的保护元件。 由于保护元件被设计为透明的并且为图像表面之前的保护元件的可更换布置提供了保持装置，因此提供了保护装置，这允许检查图像表面并且易于操作。

公开(公告)号：US20060182322A1

公开(公告)日：2006-08-17

申请号：US11058025

申请日：2005-02-15

Applicant: Philipp Bernhardt ,  Lothar Batz ,  Ernst-Peter Ruhrnschopf ,  Martin Hoheisel

Inventor： Philipp Bernhardt ,  Lothar Batz ,  Ernst-Peter Ruhrnschopf ,  Martin Hoheisel

IPC: G06K9/00

CPC classification number: G06T7/0002 ,  A61B5/02007 ,  A61B5/7257 ,  A61B6/12 ,  A61B6/4291

Abstract: A method for defining image quality characteristics of X-ray based medical projection imaging devices is provided. A spatial frequency-dependent signal-to-noise ratio function includes image quality parameters of spatial resolution, object contrast and noise. The detectability of an object embedded into a defined background, such as a cardiac guide wire in a patient is determined. An X-ray system may be defined and set up for obtaining an optimized image quality to determine the best object detectability for a given patient dose.

Abstract translation: 提供了一种用于定义基于X射线的医疗投影成像装置的图像质量特性的方法。 空间频率相关信噪比函数包括空间分辨率，对象对比度和噪声的图像质量参数。 确定嵌入到定义的背景中的对象的可检测性，例如患者中的心导丝。 可以定义和设置X射线系统以获得优化的图像质量，以确定给定患者剂量的最佳对象检测能力。

公开(公告)号：US06778632B2

公开(公告)日：2004-08-17

申请号：US10277075

申请日：2002-10-21

Applicant: Martin Hoheisel ,  Hartmut Sklebitz

Inventor： Martin Hoheisel ,  Hartmut Sklebitz

IPC: H05G164

CPC classification number: G21K1/025 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00

Abstract: In an arrangement having an X-ray detector or a gamma detector with detector elements arranged in a matrix in row and column directions that form a detector surface with detection regions that are sensitive to X-rays or gamma radiation and insensitive intermediate regions, and a stray radiation grid or collimator of absorbent structure elements that is arranged over the detector surface, the absorbent structure elements proceed over the intermediate regions and are fashioned such that their detector-side center-to-center spacing in the row direction and/or column direction is greater by a whole-numbered factor than the center-to-center spacing of the detector elements in the same direction, and/or sections of the absorbent structure elements that proceed in one direction exhibit a lower height than sections that proceed in the respectively other direction. Moiré effects can be avoided in the image exposure and, at the same time, a reduced primary radiation absorption by the stray radiation grid or collimator is achieved even given a moving radiation source.

Abstract translation: 在具有X射线检测器或伽马检测器的布置中，检测器元件以行和列方向布置成矩阵，形成检测器表面，检测器表面具有对X射线或γ辐射敏感的检测区域和不敏感中间区域，以及 吸收结构元件布置在检测器表面上的杂散辐射网格或准直器，吸收结构元件在中间区域上行进并被制成使得它们在行方向和/或列方向上的检测器侧中心到中心间隔 比检测器元件在相同方向上的中心到中心间隔大一个整数倍，并且/或在一个方向上进行的吸收结构元件的部分表现出比分别进行的部分更低的高度 其他方向 在图像曝光中可以避免莫尔效应，并且即使给定移动辐射源，也可以实现由杂散辐射网格或准直器减少的初级辐射吸收。

公开(公告)号：US06327341B1

公开(公告)日：2001-12-04

申请号：US09581619

申请日：2000-08-11

Applicant: Martin Hoheisel

Inventor： Martin Hoheisel

IPC: G21K100

CPC classification number: G21K1/025

Abstract: A scattered-ray grid, particularly for medical radiography systems having an X-ray source which emits an X-ray beam with a center ray is formed by a carrier with absorbent elements, namely in the form of lead elements that are realized as separated pins in spaced rows. The rows of pins are oriented such that they proceed toward the intersection of the center ray and the scattered-ray grid.

Abstract translation: 特别是具有发射具有中心射线的X射线束的X射线源的医疗射线照相系统的散射射线格子由具有吸收元件的载体形成，即以引导元件的形式被实现为分离的引脚 间隔排列。 引脚的行被定向成使得它们朝向中心射线和散射射线格栅的交点移动。

公开(公告)号：US06181769B2

公开(公告)日：2001-01-30

申请号：US09158060

申请日：1998-09-22

Applicant: Martin Hoheisel ,  Hartmut Sklebitz

Inventor： Martin Hoheisel ,  Hartmut Sklebitz

IPC: H05G164

CPC classification number: A61B6/4233

Abstract: An x-ray detector for acquiring an x-ray image is in the form of a matrix with at least one of the sides of the amorphous silicon x-ray detector matrix having a cutout or recess with a curved contour that is adapted to the anatomy of the body part to be examined for an average patient.

Abstract translation: 用于获取X射线图像的X射线检测器是矩阵的形式，其中非晶硅x射线检测器矩阵的至少一侧具有切口或凹槽，其具有适于解剖学的弯曲轮廓 的身体部位要平均检查病人。

公开(公告)号：US5608775A

公开(公告)日：1997-03-04

申请号：US536437

申请日：1995-09-29

Applicant: Dietrich Hassler ,  Martin Hoheisel

Inventor： Dietrich Hassler ,  Martin Hoheisel

IPC: H05G1/30 ,  A61B6/00 ,  H04N5/32 ,  H05G1/36 ,  H05G1/44 ,  H05G1/60 ,  H05G1/64

CPC classification number: H05G1/36 ,  H04N5/32 ,  H05G1/44 ,  H05G1/60

Abstract: An x-ray diagnostic installation has a high-voltage generator, an x-ray tube supplied by the high-voltage generator, and a solid-state image converter on which x-rays, attenuated by an examination subject disposed between the x-ray tube and the solid-state image converter, are incident. A control unit is connected to the high-voltage generator and to the solid-state image converter, and controls the high-voltage generator to cause the x-ray tube to emit a first x-ray pulse of a short duration which produces an x-ray exposure in the solid-state image converter. The control unit conducts a read out of the solid-state image converter to obtain a measured value representative of the x-ray dose rate, the control unit using this measured value to calculate the x-ray transparency of the examination subject and, from the x-ray transparency, to calculate an optimum x-ray dose. The control unit then operates the high-voltage generator to cause the x-ray tube to emit a second x-ray pulse, having the optimum x-ray dose, for acquiring a diagnostic image of the examination subject.

Abstract translation: X射线诊断装置具有高压发生器，由高压发生器提供的X射线管，以及固态图像转换器，X射线被检查对象衰减，X射线 管和固态图像转换器。 控制单元连接到高电压发生器和固态图像转换器，并且控制高压发生器以使X射线管发射短时间段的第一x射线脉冲，其产生x 在固态图像转换器中的曝光。 控制单元进行固态图像转换器的读出以获得代表x射线剂量率的测量值，该控制单元使用该测量值来计算检查对象的x射线透明度，并且从 x射线透明度，以计算最佳x射线剂量。 然后，控制单元操作高电压发生器，使X射线管发射具有最佳x射线剂量的第二x射线脉冲，以获取检查对象的诊断图像。

公开(公告)号：US5574765A

公开(公告)日：1996-11-12

申请号：US506870

申请日：1995-07-25

Applicant: Dietrich Hassler ,  Martin Hoheisel

Inventor： Dietrich Hassler ,  Martin Hoheisel

IPC: H05G1/64 ,  A61B6/00 ,  G01T1/24 ,  G01T1/29 ,  H04N5/32 ,  H05G1/44

CPC classification number: H05G1/44 ,  G01T1/2018 ,  G01T1/2928 ,  H04N5/32

Abstract: An x-ray diagnostics installation has a high-voltage generator for an x-ray tube for generating an x-ray beam, having a detector arranged in the x-ray beam for acquiring the x-ray dose, a control unit connected to the detector for the control of the high-voltage generator, and a solid-state image converter which also serves as the detector. The solid-state image converter has a semiconductor layer with light-sensitive pixel elements arranged in a matrix and an electrically non-conductive layer applied thereon, an electrode layer applied on the electrically non-conductive layer forming a capacitor with the pixel elements to which charge is supplied due to x-ray exposure and that is connected to the control unit for the acquisition of this charge corresponding to the x-ray dose.

Abstract translation: X射线诊断装置具有用于X射线管的高压发生器，用于产生X射线束，其具有布置在x射线束中用于获取x射线剂量的检测器，连接到X射线束的控制单元 用于控制高压发生器的检测器，以及也用作检测器的固态图像转换器。 固态图像转换器具有半导体层，其具有以矩阵形式布置的感光像素元件和施加在其上的非导电层，施加在非导电层上的电极层，形成电容器，其中像素元件至 由于x射线曝光而提供电荷，并且连接到控制单元以获取对应于x射线剂量的该电荷。