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    • 1. 发明申请
    • Cervical vertebra plate
    • 颈椎板
    • US20060142766A1
    • 2006-06-29
    • US10527339
    • 2003-09-11
    • Bernd Schafer
    • Bernd Schafer
    • A61F2/30
    • A61B17/8605A61B17/7059A61B17/8052A61B2017/8655
    • The invention relates to a cervical vertebra plate (10) for osteosynthesis, having two receiving openings for the screw heads (18) of bone screws (16) in order to secure the cervical vertebra plate to two cervical vertebrae. The receiving openings have grooves (22) in the distal region on the periphery thereof and the depth of the grooves increases from a proximal to a distal end. The invention also relates to a bone screw (18) comprising a screw head (16) and a screw shank. The screw head comprises grooves (34) on the outer periphery thereof and the depth of the grooves varies along the length thereof.
    • 本发明涉及一种用于骨接合术的颈椎板(10),其具有两个用于骨螺钉(16)的螺钉头(18)的接收开口,以将颈椎板固定到两个颈椎上。 接收开口在其周边的远侧区域中具有凹槽(22),并且凹槽的深度从近端到远端增加。 本发明还涉及一种包括螺钉头(16)和螺钉柄的骨螺钉(18)。 螺钉头在其外周上包括凹槽(34),并且凹槽的深度沿其长度变化。
    • 10. 发明授权
    • Preparation of asymmetrically substituted triazines
    • 制备不对称取代的三嗪
    • US5739328A
    • 1998-04-14
    • US619667
    • 1996-03-29
    • Bernd SchaferHorst Mayer
    • Bernd SchaferHorst Mayer
    • C07D251/46B01J27/122B01J27/138B01J31/04B01J31/22C07D251/16
    • C07D251/16
    • A process for preparing asymmetrically substituted triazines of the formula I ##STR1## where R.sup.1 is hydrogen, methyl or ethyl, R.sup.2 and R.sup.3 independently of one another are an unsubstituted or substituted hydrocarbon radical, by reaction of a cyanoguanidine of the formula II ##STR2## with a carboxylic acid derivative in the presence of an alcohol of the formula III R.sup.2 --OH III, which comprises reacting a carboxylic acid ester of the formula IV R.sup.3 --COOR.sup.4 IV, where R.sup.3 has the abovementioned meaning and R.sup.4 is an unsubstituted or substituted hydrocarbon radical, in the presence of a base or of a carboxamide selected from the group consisting of N,N-dialkylformamide, N,N-dialkylacetamide and N-methylpyrrolidone and in the presence of a salt or of a salt-like compound of the elements magnesium, calcium, aluminum, zinc, copper, iron, cobalt, nickel or chromium, is described.
    • PCT No.PCT / EP94 / 03331 Sec。 371日期:1996年3月29日 102(e)1996年3月29日PCT 1994年10月10日PCT PCT。 公开号WO95 / 11237 日期:1995年04月27日一种制备式I的不对称取代的三嗪的方法,其中R 1是氢,甲基或乙基,R 2和R 3彼此独立地是未取代的或取代的烃基,通过将氰基胍 式II II与羧酸衍生物在式III R 2 -OH的醇存在下反应,其包括使式IV的R 3 -COOR 4IV的羧酸酯(其中R 3具有上述含义)和R 4是 未取代或取代的烃基,在碱或选自N,N-二烷基甲酰胺,N,N-二烷基乙酰胺和N-甲基吡咯烷酮的羧酰胺的存在下,在盐或盐的存在下, 描述了元素镁,钙,铝,锌,铜,铁,钴,镍或铬的类似化合物。