公开(公告)号：EP1227852A2

公开(公告)日：2002-08-07

申请号：EP00987230.0

申请日：2000-11-10

申请人： Hörmansdörfer, Gerd

发明人： HÖRMANSDÖRFER, Gerd ,  WESTERMANN, Kord

IPC分类号： A61L24/00 ,  A61K49/04

CPC分类号： A61L24/001 ,  A61L27/50 ,  A61L2430/02

摘要： The invention relates to a so-called bone cement, e.g. based on polymethylmethacrylate, polystyrene or copolymers, whose particles comprised of e.g. polymerizate, additives and/or contrast media have a globular, preferably spheroidal, shape and form the powdery constituents. The invention also relates to an advantageous contrast medium itself, whereby these particles comprise, in essence, relatively large uniform dimensions and preferably form a hexagonally close sphere packing when mixed with the monomer. The invention also relates to a bone cement comprising an accelerator which has an improved physiological acceptability and comprising a catalyst that is specially deposited on the particles. The corresponding bone cement mixtures can be mixed without difficulties and without the risk of entrapping air. The required quantity of monomers is reduced, the heat emission and the volume shrinkage during polymerization are lower, the bending tensile strength of the cured product is at least identical or greater, and the abrasive effect is reduced. In addition, a reduced residual quantity of monomers is expected.

摘要翻译： 本发明涉及所谓的骨粘固剂，例如， 基于聚甲基丙烯酸甲酯，聚苯乙烯或共聚物，其颗粒由例如甲基丙烯酸甲酯组成。 聚合物，添加剂和/或造影剂具有球状，优选球形，并形成粉末组分。 本发明还涉及一种有利的造影剂本身，其中这些颗粒本质上包含相当大的均匀尺寸，并且当与单体混合时优选形成六边形紧密球形填料。 本发明还涉及包含具有改善的生理可接受性并且包含特别沉积在颗粒上的催化剂的促进剂的骨粘固剂。 相应的骨水泥混合物可以混合而没有困难，并且没有捕获空气的风险。 所需量的单体减少，聚合过程中的发热量和体积收缩率降低，固化产物的弯曲拉伸强度至少相同或更大，磨损效果降低。 此外，预计单体的残留量减少。 本发明的骨水泥的成分可以经济地制造而没有技术困难。 结果，本发明可以在医学领域中促进导致患者健康改善的技术性进一步发展。

公开(公告)号：EP0794845A1

公开(公告)日：1997-09-17

申请号：EP96943009.0

申请日：1996-09-28

申请人： Hörmansdörfer, Gerd

发明人： HÖRMANSDÖRFER, Gerd ,  LEY, Hans ,  WESTERTEICHER, Wolfgang

IPC分类号： B23Q1 ,  B23Q27 ,  F16H35

CPC分类号： F16H35/02 ,  B23Q1/5456 ,  B23Q1/5468 ,  B23Q1/5481 ,  B23Q27/00 ,  F16H2035/003 ,  Y10T82/10 ,  Y10T82/122 ,  Y10T82/128 ,  Y10T82/147 ,  Y10T82/16639 ,  Y10T82/16704

摘要： The invention pertains to a special process and devices for the production preferably by machining of workpieces with non-circular outer and inner contours such as squares, hexagons, ellipses, polygons and the like, or eccentric circular bores and/or tappets. In the claimed process, the workpiece is rotated at constant angular velocity while a tool (e.g. the blade of a lathe tool) set eccentrically in relation to the workpiece is moved without rotating about its own axis at controllable speed in a circular path, workpiece and tool being moved towards one another in cycles with the appropriate advance. This ensures that apart from a small cuttings volume for each advance, very narrow tolerances can be set. The associated device, which has a special gear and optionally an integrated cross slide unit, gimbal-mounted yaw head or eccentric spindle, can be used as a compact tool unit for rotary and milling machines and the like.

公开(公告)号：EP0794845B1

公开(公告)日：2002-07-24

申请号：EP96943009.9

申请日：1996-09-28

申请人： Hörmansdörfer, Gerd

发明人： HÖRMANSDÖRFER, Gerd ,  LEY, Hans ,  WESTERTEICHER, Wolfgang

IPC分类号： B23B29/034 ,  B23B41/04

CPC分类号： F16H35/02 ,  B23Q1/5456 ,  B23Q1/5468 ,  B23Q1/5481 ,  B23Q27/00 ,  F16H2035/003 ,  Y10T82/10 ,  Y10T82/122 ,  Y10T82/128 ,  Y10T82/147 ,  Y10T82/16639 ,  Y10T82/16704

摘要： The invention pertains to a special process and devices for the production preferably by machining of workpieces with non-circular outer and inner contours such as squares, hexagons, ellipses, polygons and the like, or eccentric circular bores and/or tappets. In the claimed process, the workpiece is rotated at constant angular velocity while a tool (e.g. the blade of a lathe tool) set eccentrically in relation to the workpiece is moved without rotating about its own axis at controllable speed in a circular path, workpiece and tool being moved towards one another in cycles with the appropriate advance. This ensures that apart from a small cuttings volume for each advance, very narrow tolerances can be set. The associated device, which has a special gear and optionally an integrated cross slide unit, gimbal-mounted yaw head or eccentric spindle, can be used as a compact tool unit for rotary and milling machines and the like.