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    • 1. 发明授权
    • Methods and apparatus for stabilizing a gantry in a computed tomography
system
    • 用于在计算机断层摄影系统中稳定龙门架的方法和装置
    • US5799054A
    • 1998-08-25
    • US777417
    • 1996-12-31
    • Russell Wayne HumThomas Robert MurrayShawn Patrick Faessler
    • Russell Wayne HumThomas Robert MurrayShawn Patrick Faessler
    • A61B6/03A61B6/10A61B6/02
    • A61B6/4447A61B6/035A61B6/105
    • The present invention, in one form, is a brake assembly for a tilting gantry. The brake assembly is coupled to the gantry in substantially the same manner as a driving actuator is connected to the gantry, and includes a hydraulic cylinder, a piston, a reservoir and a valve. The cylinder includes a first end, a second end, and a sidewall extending between the first end and the second end to define a chamber. The piston includes a head and an arm which is configured to couple to the gantry. The piston is positioned within the hydraulic cylinder so that the head of the piston is in the cylinder chamber and the piston arm extends through a piston opening of the first end of the hydraulic cylinder. The reservoir is configured to retain hydraulic fluid, and the valve is connected in series circuit between the hydraulic cylinder and the reservoir. Particularly, a fluid line couples the reservoir to the hydraulic cylinder, and the valve is positioned in the fluid line to control the flow of hydraulic fluid between the reservoir and the hydraulic cylinder.
    • 本发明以一种形式是用于倾斜机架的制动组件。 制动器组件以与驱动致动器连接到机架的基本相同的方式联接到机架,并且包括液压缸,活塞,储存器和阀。 圆筒包括第一端,第二端和在第一端和第二端之间延伸以限定腔室的侧壁。 该活塞包括头部和臂部,该臂部构造成联接到台架。 活塞定位在液压缸内,使得活塞的头部在气缸室中,并且活塞臂延伸穿过液压缸的第一端的活塞开口。 储存器构造成保持液压流体,并且阀在液压缸和储存器之间串联连接。 特别地,流体管线将储存器连接到液压缸,并且阀定位在流体管线中以控制储存器和液压缸之间的液压流体的流动。
    • 3. 发明授权
    • Methods and apparatus for acquiring table elevation information
    • 获取台面高程信息的方法和装置
    • US5657498A
    • 1997-08-19
    • US560829
    • 1995-11-20
    • Russell Wayne Hum
    • Russell Wayne Hum
    • A61B6/03A47B9/16A61B6/04
    • A61B6/0457A47B9/16A47B2200/0056
    • Apparatus and methods for determining cradle support elevation in an imaging system are described. In one form, the apparatus includes a support rail secured to and between table support legs of a table arrangement. The support rail is maintained substantially parallel with the cradle support. An encoder, coupled to the support rail, generates signals indicative of the cradle support elevation. The encoder signals can be used to determine, using a linear function, cradle support elevation. More specifically, although the cradle support movements are non-linear, the cradle support elevation apparatus provide linear feedback which may be used to determine cradle support elevation.
    • 描述了用于确定成像系统中支架支架高度的装置和方法。 在一种形式中,该装置包括固定到桌子布置的桌子支撑腿之间和之间的支撑轨道。 支撑轨道保持与支架支撑件基本平行。 耦合到支撑轨的编码器产生指示支架支架高度的信号。 编码器信号可用于确定使用线性功能的支架支架高度。 更具体地,尽管托架支撑运动是非线性的,但托架支撑升降装置提供可用于确定支架支架高度的线性反馈。