Process for preparing bovine pericard materials and use thereof
    1.
    发明授权
    Process for preparing bovine pericard materials and use thereof 失效
    牛皮质素材料的制备方法及其应用

    公开(公告)号:US5413798A

    公开(公告)日:1995-05-09

    申请号:US223826

    申请日:1994-04-06

    摘要: A process for treating bovine pericard tissue to increase resistance to biological degradation by wet-chemical processing, The wet-chemical processing consists essentially of: (i) separating any adherent fat and basal membrane from the tissue; (ii) contacting the tissue with an aqueous, alkaline solution of sodium hydroxide, potassium hydroxide, lithium hydroxide or sodium carbonate to swell the tissue; (iii) contacting the swollen tissue with an aqueous sodium chloride solution to control the swelling; (iv) contacting the tissue with a solution of a metal-ion complexing agent with a pH in excess of 11; and (v) contacting the tissue with an aqueous buffer solution having a pH of 4.5 to 6.0. Each of steps (ii)-(v) is followed by a water rinse. The pericard tissue is then dried and sterilized.

    摘要翻译: 一种用于处理牛围巾组织以通过湿化学处理增加对生物降解的抗性的方法。湿化学处理基本上由以下组成:(i)从组织中分离任何粘附的脂肪和基底膜; (ii)使组织与氢氧化钠,氢氧化钾,氢氧化锂或碳酸钠的碱性水溶液接触以使组织膨胀; (iii)使肿胀组织与氯化钠水溶液接触以控制肿胀; (iv)使组织与pH超过11的金属离子络合剂的溶液接触; 和(v)使组织与pH为4.5至6.0的缓冲水溶液接触。 步骤(ii) - (v)中的每一个之后是水冲洗。 然后将包膜组织干燥并灭菌。

    Two-coordinate positioning device
    2.
    发明授权
    Two-coordinate positioning device 失效
    双坐标定位装置

    公开(公告)号:US4286197A

    公开(公告)日:1981-08-25

    申请号:US15283

    申请日:1979-02-26

    CPC分类号: H02K41/03 H02K2201/18

    摘要: A positioning device with two coordinates, for the moving of two components relative to each other. The positioning device with two coordinates serves for the exact positioning of a tool or workpiece, preferably of semi-conductor discs, for the purpose of checking or fabricating in the course of the manufacturing process.

    摘要翻译: 具有两个坐标的定位装置,用于相对于彼此移动两个部件。 具有两个坐标的定位装置用于精确定位工具或工件,优选地为半导体盘,用于在制造过程中检查或制造。