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公开(公告)号：US20070274436A1
公开(公告)日：2007-11-29
申请号：US11748274
申请日：2007-05-14
CPC分类号： A61B6/035 , A61B6/4488
摘要： An X-ray CT apparatus, wherein a drum type rotation frame is rotatably supported by a fixed circular frame so as to surround an outer surface of the drum type rotation frame through a plurality of bearings provided between an inner surface of the fixing circular frame and an outer surface of the drum type rotation frame, for example in ring-like configuration. When the drum type rotation frame receives a large centrifugal acceleration due to a high speed rotation, outside expansion of the drum type rotation frame can be constrained due to both the rigidity of the fixed frame and the rigidity of the plurality of bearings provided on the outer surface of the rotation frame, thereby to maintain the relative positions of the X-ray tube and the X-ray detector and prevent deterioration of reconstructed images.
摘要翻译： 一种X射线CT装置，其中，滚筒式旋转框架由固定的圆形框架可旋转地支撑，以便通过设置在固定圆形框架的内表面和固定圆形框架的内表面之间的多个轴承包围滚筒式旋转框架的外表面 滚筒式旋转框架的外表面，例如呈环状构造。 当滚筒式旋转架由于高速旋转而接收到大的离心加速度时，由于固定框架的刚性和设置在外侧的多个轴承的刚性，滚筒式旋转框架的外部膨胀可以被限制 从而保持X射线管和X射线检测器的相对位置，并防止重构图像的劣化。
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公开(公告)号：US07623619B2
公开(公告)日：2009-11-24
申请号：US11964508
申请日：2007-12-26
申请人： Tetsuya Sadotomo , Makoto Nakano
发明人： Tetsuya Sadotomo , Makoto Nakano
IPC分类号： G01N23/00
CPC分类号： A61B6/035 , A61B6/4488
摘要： An X-ray CT apparatus that achieves a higher quality of reconstructed CT images by preventing displacements of relative positions of the X-ray tube and the X-ray detector from occurring, including a front side rotation frame configured to mount at least one X-ray tube and at least one X-ray detector facing the X-ray tube, and a rear side rotation frame configured to mount rotation units other than the X-ray tube and the X-ray detector in order to access both sides of the gantry.
摘要翻译： 一种X射线CT装置，其通过防止发生X射线管和X射线检测器的相对位置的位移而实现更高质量的重建CT图像，包括构造成安装至少一个X射线检测器的前侧旋转框架， X射线管和面向X射线管的至少一个X射线检测器，以及被配置为安装除X射线管和X射线检测器之外的旋转单元的后侧旋转框架，以便接近台架的两侧 。
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公开(公告)号：US07508904B2
公开(公告)日：2009-03-24
申请号：US11748274
申请日：2007-05-14
IPC分类号： G01N23/00
CPC分类号： A61B6/035 , A61B6/4488
摘要： An X-ray CT apparatus, wherein a drum type rotation frame is rotatably supported by a fixed circular frame so as to surround an outer surface of the drum type rotation frame through a plurality of bearings provided between an inner surface of the fixing circular frame and an outer surface of the drum type rotation frame, for example in ring-like configuration. When the drum type rotation frame receives a large centrifugal acceleration due to a high speed rotation, outside expansion of the drum type rotation frame can be constrained due to both the rigidity of the fixed frame and the rigidity of the plurality of bearings provided on the outer surface of the rotation frame, thereby to maintain the relative positions of the X-ray tube and the X-ray detector and prevent deterioration of reconstructed images.
摘要翻译： 一种X射线CT装置，其中，滚筒式旋转框架由固定的圆形框架可旋转地支撑，以便通过设置在固定圆形框架的内表面和固定圆形框架的内表面之间的多个轴承包围滚筒式旋转框架的外表面 滚筒式旋转框架的外表面，例如呈环状构造。 当滚筒式旋转架由于高速旋转而接收到大的离心加速度时，由于固定框架的刚性和设置在外侧的多个轴承的刚性，滚筒式旋转框架的外部膨胀可以被限制 从而保持X射线管和X射线检测器的相对位置，并防止重构图像的劣化。
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公开(公告)号：US20090279660A1
公开(公告)日：2009-11-12
申请号：US12433151
申请日：2009-04-30
申请人： Tomonao Takamatsu , Hitoshi Hattori , Hideo Iwasaki , Harunobu Fukushima , Rika Hosaka , Tomohiko Jimbo , Tetsuya Sadotomo , Tomokazu Harada , Satoshi Ota , Makoto Nakano , Yasutaka Shindo , Katsumi Gotanda
发明人： Tomonao Takamatsu , Hitoshi Hattori , Hideo Iwasaki , Harunobu Fukushima , Rika Hosaka , Tomohiko Jimbo , Tetsuya Sadotomo , Tomokazu Harada , Satoshi Ota , Makoto Nakano , Yasutaka Shindo , Katsumi Gotanda
CPC分类号： A61B6/4488 , A61B6/035
摘要： A rotor is rotatably supported in a gantry housing having a substantially sealed structure. An X-ray tube is provided in the rotor. A cooler is provided in the rotor and cools a refrigerant within the X-ray tube. An X-ray detector is provided in the rotor. A reconstruction unit reconstructs an image on the basis of an output of the X-ray detector. A radiator is fixed inside the gantry housing at a position opposite to an exhaust opening of the cooler when the rotor is stationary.
摘要翻译： 转子被可旋转地支撑在具有基本密封结构的台架壳体中。 在转子中设置有X射线管。 在转子中设置冷却器并冷却X射线管内的制冷剂。 在转子中设置有X射线检测器。 重建单元基于X射线检测器的输出重建图像。 当转子静止时，散热器固定在机架外壳的与冷却器排气口相对的位置。
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公开(公告)号：US07447294B2
公开(公告)日：2008-11-04
申请号：US11470902
申请日：2006-09-07
CPC分类号： A61B6/035 , A61B6/4488
摘要： An X-ray computed tomographic apparatus includes a cylindrical rotary base supported so as to be rotatable about a rotational axis, an X-ray tube unit mounted on the rotary base, an X-ray detecting unit mounted on the rotary base, and a reinforcing ring fixed to an end of the rotary base, and having a greater rigidity than the rotary base.
摘要翻译： X射线计算机断层摄影装置包括：支撑为可绕旋转轴线旋转的圆筒形旋转基座，安装在旋转基座上的X射线管单元，安装在旋转基座上的X射线检测单元和加强件 环固定到旋转底座的端部，并且具有比旋转底座更大的刚性。
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公开(公告)号：US07889837B2
公开(公告)日：2011-02-15
申请号：US12433151
申请日：2009-04-30
申请人： Tomonao Takamatsu , Hitoshi Hattori , Hideo Iwasaki , Harunobu Fukushima , Rika Hosaka , Tomohiko Jimbo , Tetsuya Sadotomo , Tomokazu Harada , Satoshi Ota , Makoto Nakano , Yasutaka Shindo , Katsumi Gotanda
发明人： Tomonao Takamatsu , Hitoshi Hattori , Hideo Iwasaki , Harunobu Fukushima , Rika Hosaka , Tomohiko Jimbo , Tetsuya Sadotomo , Tomokazu Harada , Satoshi Ota , Makoto Nakano , Yasutaka Shindo , Katsumi Gotanda
CPC分类号： A61B6/4488 , A61B6/035
摘要： A rotor is rotatably supported in a gantry housing having a substantially sealed structure. An X-ray tube is provided in the rotor. A cooler is provided in the rotor and cools a refrigerant within the X-ray tube. An X-ray detector is provided in the rotor. A reconstruction unit reconstructs an image on the basis of an output of the X-ray detector. A radiator is fixed inside the gantry housing at a position opposite to an exhaust opening of the cooler when the rotor is stationary.
摘要翻译： 转子被可旋转地支撑在具有基本密封结构的台架壳体中。 在转子中设置有X射线管。 在转子中设置冷却器并冷却X射线管内的制冷剂。 在转子中设置有X射线检测器。 重建单元基于X射线检测器的输出重建图像。 当转子静止时，散热器固定在机架外壳的与冷却器排气口相对的位置。
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公开(公告)号：US20080159470A1
公开(公告)日：2008-07-03
申请号：US11964508
申请日：2007-12-26
申请人： Tetsuya Sadotomo , Makoto Nakano
发明人： Tetsuya Sadotomo , Makoto Nakano
IPC分类号： H05G1/60
CPC分类号： A61B6/035 , A61B6/4488
摘要： An X-ray CT apparatus that achieves a higher quality of reconstructed CT images by preventing displacements of relative positions of the X-ray tube and the X-ray detector from occurring, including a front side rotation frame configured to mount at least one X-ray tube and at least one X-ray detector facing the X-ray tube, and a rear side rotation frame configured to mount rotation units other than the X-ray tube and the X-ray detector in order to access both sides of the gantry.
摘要翻译： 一种X射线CT装置，其通过防止发生X射线管和X射线检测器的相对位置的位移而实现更高质量的重建CT图像，包括构造成安装至少一个X射线检测器的前侧旋转框架， X射线管和面向X射线管的至少一个X射线检测器，以及被配置为安装除X射线管和X射线检测器之外的旋转单元的后侧旋转框架，以便接近台架的两侧 。
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