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公开(公告)号：US4093862A
公开(公告)日：1978-06-06
申请号：US772209
申请日：1977-02-25
CPC分类号： A61B6/4447
摘要： An X-ray source and a detector array are mounted on opposite sides of a generally horizontally extending longitudinal axis of a rotating base. The rotating base is journaled on a tiltable frame. The frame is supported on curved tracks for tilting by translating along a curved path about a fixed transverse virtual axis of rotation which is perpendicular to and intersects the rotational axis of the rotating base. Tilting the frame permits making an X-ray scan through a layer of a patient which is at an acute angle relative to the longitudinal axis. The azimuth drive for the rotatable frame utilizes a toothed belt. A self-acting friction brake is provided for constraining the rocking base. A hoist is provided for making installation and removal of the X-ray source convenient.
摘要翻译： X射线源和检测器阵列安装在旋转基座的大致水平延伸的纵向轴线的相对侧上。 旋转底座在可倾斜的框架上。 框架支撑在弯曲的轨道上，用于通过围绕垂直于旋转基座的旋转轴线并与之相交的固定的横向虚拟旋转轴线沿着弯曲路径平移。 倾斜框架允许通过相对于纵向轴线成锐角的患者层进行X射线扫描。 用于可旋转框架的方位驱动器使用齿形带。 提供了一种用于约束摇摆基座的自行摩擦制动器。 提供了一种用于安装和拆卸X射线源的起重机。
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公开(公告)号：US4112303A
公开(公告)日：1978-09-05
申请号：US771864
申请日：1977-02-25
CPC分类号： A61B6/04
摘要： An x-ray source and a detector array are mounted on opposite sides of a generally horizontally extending longitudinal axis of a rotating base. The rotating base is journaled on a tiltable frame. The frame is supported on curved tracks for tilting by translating along a curved path about a fixed transverse virtual axis of rotation which is perpendicular to and intersects the rotational axis of the rotating base. Tilting the frame permits making an x-ray scan through a layer of a patient which is at an acute angle relative to the longitudinal axis. The azimuth drive for the rotatable frame utilizes a toothed belt. A self-acting friction brake is provided for constraining the rocking base. A hoist is provided for making installation and removal of the x-ray source convenient.
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