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    • 2. 发明授权
    • Parallel-link table and tomographic imaging apparatus
    • 平行连杆台和断层成像装置
    • US07024710B2
    • 2006-04-11
    • US10719074
    • 2003-11-21
    • Akira Izuhara
    • Akira Izuhara
    • A61G7/012A45B9/00
    • A61B6/04
    • For the purpose of providing a parallel-link table that is moved up/down without moving the position of a subject in the longitudinal direction, an upper structure is placed over a base plate connected with a platform via parallel links, and a first bracket on the upper structure and a middle point of one parallel link are connected by a first position correcting link of a length half that of the parallel link using pivotal joint portions; and therefore, when the base plate is moved up/down with respect to the platform, the upper structure moves only in the vertical direction without moving in the horizontal direction, and the top plate over the upper structure, hence, the subject placed on the top plate can be moved up/down in the vertical direction without moving in the longitudinal direction.
    • 为了提供在长度方向上不移动被摄体位置的上下移动的平行连杆台,将上部结构放置在通过平行连杆与平台连接的基板上,并且第一支架 一个平行连杆的上部结构和中点通过使用枢转关节部分的平行连杆的长度的一半的第一位置校正连杆连接; 因此,当基板相对于平台上下移动时,上部结构仅在垂直方向上移动而不在水平方向上移动,并且顶板位于上部结构上,因此被放置在主体上 顶板可以在垂直方向上上下移动,而不沿纵向移动。
    • 7. 发明授权
    • Aperture position adjusting mechanism, gantry apparatus and method of controlling it in X-ray CT system
    • 孔径位置调节机构,龙门架装置及其在X射线CT系统中的控制方法
    • US06711236B2
    • 2004-03-23
    • US10202149
    • 2002-07-23
    • Akira Izuhara
    • Akira Izuhara
    • G21K104
    • A61B6/035A61B6/06A61B6/4021G01N23/046G01N2223/419H05G1/02
    • In order to provide an aperture position adjusting mechanism in an X-ray CT system with low cost and high accuracy to enable stable reconstruction of X-ray tomographic images, a first shaft (23) is provided with a bore (23a) at a position offset from a center axis, and is rotatably supported by a base plate (20) orthogonally to a pair of rails (21a, 21b). A second shaft (25) is received and is rotatably supported within the bore (23a) through the first shaft (23). The aperture (6) is moved along the rails (21a, 21b) as the second shaft (25) is eccentrically rotated by a motor (7) and, following the eccentric rotation and in a direction opposite to that of the rotation, the first shaft (23) is eccentrically rotated around the center axis of the bore (23a).
    • 为了在X射线CT系统中以低成本和高精度提供孔径位置调节机构,能够稳定地重建X射线断层图像,第一轴(23)在位置处设有孔(23a) 偏心于中心轴线,并且与一对导轨(21a,21b)正交的基板(20)可旋转地支撑。 第二轴(25)被容纳并通过第一轴(23)可旋转地支撑在孔(23a)内。 当第二轴(25)通过电动机(7)偏心旋转时,孔(6)沿着轨道(21a,21b)移动,并且随着偏心旋转并且沿与旋转方向相反的方向,第一 轴(23)围绕孔(23a)的中心轴线偏心旋转。
    • 8. 发明授权
    • Subject moving apparatus and imaging apparatus
    • 主体移动装置和成像装置
    • US07831291B2
    • 2010-11-09
    • US11200812
    • 2005-08-10
    • Akira IzuharaKatsumi Azu
    • Akira IzuharaKatsumi Azu
    • A47B71/00A61B5/05
    • A61B6/0457
    • A cradle position sensing mechanism that includes a scale unit having a scale, which is used to detect the position of the cradle, formed thereon and being extended to cover a sliding range within which the cradle can be slid; and a sensor unit that moves in the directions, in which the scale unit is extended, along with the slide of the cradle so as to detect the scale of the scale unit. The cradle position sensing mechanism serves as a digital linear encoder. Based on the reading on the scale detected by the sensor, the cradle position sensing mechanism calculates the position into which the cradle is slid.
    • 一种支架位置检测机构,其包括具有刻度的刻度单元,所述刻度尺用于检测托架的位置并形成在其上并且被延伸以覆盖托架可滑动的滑动范围; 以及传感器单元,其沿着支架的滑动件沿尺度单元延伸的方向移动,以便检测刻度单元的刻度。 支架位置检测机构用作数字线性编码器。 基于由传感器检测到的刻度的读数,托架位置检测机构计算托架滑动到的位置。