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1. 发明授权

US5666395A X-ray diagnostic apparatus 失效
标题翻译： X光诊断仪
公开(公告)号：US5666395A
公开(公告)日：1997-09-09
申请号：US715086
申请日：1996-09-17
申请人： Akira Tsukamoto , Masayuki Nishiki , Koichiro Nabuchi , Shin-ichi Yamada , Tohru Saisu , Takayuki Tomisaki , Manabu Tanaka , Seiichiro Nagai
发明人： Akira Tsukamoto , Masayuki Nishiki , Koichiro Nabuchi , Shin-ichi Yamada , Tohru Saisu , Takayuki Tomisaki , Manabu Tanaka , Seiichiro Nagai
IPC分类号： A61B6/00 , A61N5/10 , G01T1/29 , G21K1/02 , G21K1/00
CPC分类号： G01T1/2928 , A61B6/5258 , A61N5/103 , G21K1/025
摘要： It is an object of the invention to provide an X-ray diagnosis apparatus having an X-ray plane detector capable of removing the influence of a scattered X-ray by using a grid and also preventing a Moire image. An X-ray image transmitted through a target object is sensed by a plane detector in units of pixels which are two-dimensionally arranged at a predetermined pitch. A scattered X-ray incident on the plane detector is removed by a scattered ray removing grid having plate-like X-ray shielding members and arranged on an X-ray incident side of the plane detector. The X-ray shielding members are arranged such that an X-ray shielding pattern on the X-ray incident surface of the plane detector has a pitch corresponding to an integer fraction of the arrangement pitch of the pixels. When a steady positional relationship is kept between the pitch of the X-ray detection elements and the period of the fringe pattern of the X-ray which is shielded by the grid, a Moire image can be prevented.
摘要翻译：本发明的目的是提供一种具有X射线平面检测器的X射线诊断装置，该X射线平面检测器能够通过使用网格去除散射X射线的影响，并且还防止Moir + E，acu + EE图像。通过目标物体发射的X射线图像由平面检测器以以预定间距二维排列的像素为单位感测。通过具有板状X射线屏蔽部件的散射射线去除栅极去除入射在平面检测器上的散射X射线，并布置在平面检测器的X射线入射侧。 X射线屏蔽构件被布置成使得平面检测器的X射线入射表面上的X射线屏蔽图案具有对应于像素的排列间距的整数分数的间距。当在X射线检测元件的间距与由栅格屏蔽的X射线的条纹图案的周期之间保持稳定的位置关系时，可以防止Moir + E，acu + EE图像。

2. 发明授权

US5818898A X-ray imaging apparatus using X-ray planar detector 失效
标题翻译： X射线成像装置使用X射线平面检测器
公开(公告)号：US5818898A
公开(公告)日：1998-10-06
申请号：US744937
申请日：1996-11-06
申请人： Akira Tsukamoto , Masayuki Nishiki , Seiichiro Nagai , Koichiro Nabuchi , Tohru Saisu , Shin-ichi Yamada , Takayuki Tomisaki , Manabu Tanaka
发明人： Akira Tsukamoto , Masayuki Nishiki , Seiichiro Nagai , Koichiro Nabuchi , Tohru Saisu , Shin-ichi Yamada , Takayuki Tomisaki , Manabu Tanaka
IPC分类号： H04N5/32 , A61B6/03
CPC分类号： H04N5/361 , H04N5/32
摘要： An X-ray imaging apparatus comprises an X-ray emission unit for emitting X-rays onto a human body under examination, an X-ray emission control unit for outputting an X-ray emission signal to direct the X-ray emission unit to emit X-rays, a flat panel X-ray detector having a two-dimensional array of detector elements in rows (lines) and columns, each of the detector elements converting incident X-rays passed through the human body under examination into an electric charge signal and storing it, a resetting unit for placing each line of the detector elements in the readout state in sequence, thereby discharging electric charge stored on each of the detector elements, a storage unit for placing all the lines of the detector elements in the readout state to thereby allow each of the detector elements to store an electric charge signal, and a readout unit for placing each line of the detector elements in the readout state in sequence to thereby read an electric charge signal from each of the detector elements.
摘要翻译：一种X射线成像装置，包括：X射线发射单元，用于将X射线发射到被检查的人体上; X射线发射控制单元，用于输出X射线发射信号以引导X射线发射单元发射 X射线，具有行（行）和列的检测器元件的二维阵列的平板X射线检测器，每个检测器元件将经检查的人体的入射X射线转换为电荷信号并将其存储起来;复位单元，用于将检测器元件的每一行依次放置在读出状态，从而放电存储在每个检测器元件上的电荷;存储单元，用于将检测器元件的所有线放置在读出状态从而允许每个检测器元件存储电荷信号，以及读取单元，用于依次将放置检测器元件的每一行放置在读出状态，从而读取每个检测器元件的电荷信号 e检测器元件。

3. 发明授权

US5652777A Diagnostic X-ray apparatus 失效
标题翻译：诊断X光装置
公开(公告)号：US5652777A
公开(公告)日：1997-07-29
申请号：US360931
申请日：1994-12-21
申请人： Seiichiro Nagai , Akira Tsukamoto , Koichiro Nabuchi , Masayuki Nishiki
发明人： Seiichiro Nagai , Akira Tsukamoto , Koichiro Nabuchi , Masayuki Nishiki
IPC分类号： A61B6/00 , H05G1/36 , H05G1/60 , H05G1/22
CPC分类号： H05G1/36 , H05G1/60
摘要： A diagnostic X-ray apparatus includes an X-ray tube, an image intensifier for converting an X-ray image of an object under examination to an optical image, a solid state image sensor device for detecting the optical images produced by the image intensifier and converting the optical means into a series of video signals, a CCD driver generating field shift pulses for driving the solid state image sensor device at a predetermined rate, pulse width determining means for determining a pulse width of the X-ray pulses, and X-ray control means for controlling an emission period and timing of the X-ray pulse emitted from the X-ray tube. In the case that the solid state image sensor device performs interlaced scanning in a field storage mode, commencing with the second frame when the field shift pulse is generated by the CCD driver, the X-ray pulse continues to be emitted from the X-ray tube for a half of the pulse width determined by the pulse width determining means in the first frame. In case that the solid state image sensor device performs interlaced scanning in a frame storage mode, X-ray pulses having a pulse width determined by the pulse width determining means are emitted in the same field of each frame.
摘要翻译：诊断X射线装置包括：X射线管，用于将检查对象的X射线图像转换为光学图像的图像增强器;用于检测图像增强器产生的光学图像的固态图像传感器装置;以及将光学装置转换为一系列视频信号，产生用于以预定速率驱动固态图像传感器装置的场偏移脉冲的CCD驱动器，用于确定X射线脉冲的脉冲宽度的脉冲宽度确定装置，用于控制从X射线管发射的X射线脉冲的发射周期和定时的射线控制装置。在固态图像传感器装置进行现场存储模式的隔行扫描的情况下，当由CCD驱动器产生场偏移脉冲时从第二帧开始，X射线脉冲继续从X射线管由第一帧中的脉冲宽度确定装置确定的脉冲宽度的一半。在固态图像传感器装置以帧存储模式进行隔行扫描的情况下，由每个帧的相同场发射具有由脉冲宽度确定装置确定的脉冲宽度的X射线脉冲。

4. 发明授权

US06285738B1 High-definition still picture real-time display type x-ray diagnostic apparatus 失效
标题翻译：高分辨率静态图像实时显示型x射线诊断仪
公开(公告)号：US06285738B1
公开(公告)日：2001-09-04
申请号：US09037872
申请日：1998-03-10
申请人： Seiichiro Nagai , Koichiro Nabuchi
发明人： Seiichiro Nagai , Koichiro Nabuchi
IPC分类号： H05G164
CPC分类号： A61B6/4225 , H04N5/321 , H05G1/30
摘要： When “fluoroscopy” is specified, a little amount of X rays are irradiated successively, and an X-ray image is reflected from rotating mirrors to enter a fluoroscopic camera head provided with FTCCD. The FTCCD can obtain a fluoroscopic image as a moving picture because successive imaging is possible in a frame rate. Moreover, when “radiography” is specified, great amounts of X rays are irradiated at one shot, and an X-ray image is reflected from the rotating mirrors to enter a radiographic camera head provided with FFTCCD. The FFTCCD is provided with pixels with large pixel size whose number is increased, and thus a high-definition radiographic image as a still picture can be obtained without using an X-ray film.
摘要翻译：当指定“荧光透视”时，依次照射少量的X射线，并且将X射线图像从旋转镜反射进入具有FTCCD的荧光摄像机头。 FTCCD可以获得透视图像作为运动图像，因为可以以帧速率进行连续成像。此外，当指定“射线照相术”时，一次性照射大量X射线，并且从旋转镜反射X射线图像以进入具有FFTCCD的射线照相机头部。 FFTCCD具有数量增加的像素大的像素，因此可以在不使用X射线胶片的情况下获得作为静止图像的高分辨率放射线照相图像。

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