Dynamic phantom for radiation therapy
    12.
    发明授权
    Dynamic phantom for radiation therapy 失效
    用于放射治疗的动态体模

    公开(公告)号:US07151253B2

    公开(公告)日:2006-12-19

    申请号:US10940494

    申请日:2004-09-14

    CPC classification number: A61N5/1048 A61N2005/1072 A61N2005/1076 G01R33/58

    Abstract: The present invention is a thorax phantom that enables simulation of tumor motion within a tissue equivalent material. The system consists of a tissue equivalent epoxy phantom representing a 15 cm axial section of the human thorax that includes simplified spine and lung anatomies. Within the phantom are thru rods of similar tissue density. The rods are attached to a computer-controlled actuator that facilitates both linear and rotational motion of the rods within the phantom. A plurality of tumor targets and radiation detectors can be placed within the rods at various locations thereby enabling the simulation of respiratory and cardiac induced tumor motions within the phantom and assessment of the effects of these motions on image acquisitions, treatment planning and radiation treatment delivery.

    Abstract translation: 本发明是能够模拟组织等效材料内的肿瘤运动的胸部模体。 该系统由代表人体胸部的15厘米轴向部分的组织等效环氧树脂体系组成,包括简化的脊柱和肺解剖结构。 在幻影中是通过类似组织密度的棒。 杆连接到计算机控制的致动器,其促进杆在模体内的线性和旋转运动。 多个肿瘤靶标和放射线检测器可以放置在各种位置的杆内,从而能够模拟模型中的呼吸和心脏诱导的肿瘤运动,并评估这些运动对图像采集,治疗计划和放射治疗递送的影响。

    ADDITIVES AND LUBRICANT FORMULATIONS FOR IMPROVED ANTIWEAR PROPERTIES
    19.
    发明申请
    ADDITIVES AND LUBRICANT FORMULATIONS FOR IMPROVED ANTIWEAR PROPERTIES 有权
    添加剂和润滑剂配方用于改进的防水性能

    公开(公告)号:US20080223330A1

    公开(公告)日:2008-09-18

    申请号:US11686547

    申请日:2007-03-15

    Abstract: A lubricated surface, a method for reducing wear between moving parts, and lubricants, and lubricant additive concentrates containing a wear reducing agent. The lubricated surface contains a base oil of lubricating viscosity, a hydrocarbon soluble titanium compound, a metal-free friction modifier and an amount of at least one hydrocarbon soluble magnesium compound effective to provide a reduction in surface wear greater than a reduction surface wear for a lubricant composition devoid of the titanium compound, metal-free friction modifier, and magnesium compound. The lubricant composition contains no more than about 800 ppm phosphorus and is devoid of calcium detergents and organic molybdenum compound.

    Abstract translation: 润滑表面,减少运动部件和润滑剂之间的磨损的方法,以及含有减磨剂的润滑剂添加剂浓缩物。 润滑的表面含有润滑粘度的基础油,可溶于烃的钛化合物,无金属的摩擦调节剂和一定量的至少一种可溶解烃溶解的镁化合物,其有效地降低了表面磨损, 不含钛化合物,无金属摩擦改性剂和镁化合物的润滑剂组合物。 润滑剂组合物含有不超过约800ppm的磷,并且不含钙洗涤剂和有机钼化合物。

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