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    • 10. 发明申请
    • BISTABLE ELECTROMAGNETIC ACTUATOR AND SURGICAL INSTRUMENT
    • 双稳态电磁执行器和外科手术器械
    • WO2015135814A3
    • 2016-01-07
    • PCT/EP2015054539
    • 2015-03-04
    • WINTER & IBE OLYMPUS
    • MARTIN WIETERS
    • H01F7/16A61B1/00G02B7/00G02B23/00H01F1/055H01F1/057H01F41/02H02K33/00
    • H02K41/035A61B1/00096A61B1/00158A61B2034/731H01F1/083H01F7/1615H01F41/0266H01F2007/1669H02K33/16
    • The invention relates to a bistable electromagnetic actuator (1), in particular for a surgical instrument, comprising a stator (10) arranged outside of a pipe (2), and a mover (30) supported in the pipe (2) in such a way that the mover can be longitudinally axially displaced, which mover at least partially comprises a paramagnetic and/or ferromagnetic material and can be reversibly displaced between a first position (6) and a second position (8) by applying an electromagnetic field, wherein the stator (10) comprises two, in particular oppositely axially poled, annular permanent magnets (12, 14), a coil (16) for producing the electromagnetic field, and a back-iron element (18) having two stator pole shoes (20, 22). The invention further relates to a surgical instrument. The actuator (1) according to the invention is characterized in that the annular permanent magnets (12, 14) comprise hard magnetic particles, which are embedded in a plastic matrix.
    • 本发明涉及一种双稳态电磁致动器(1),尤其是用于手术器械,跑步者布置在包括一个管(2)的定子(10)的外侧和所述管(2)纵向地沿轴向可滑动地安装(30)至少部分地顺磁 具有和/或铁磁材料,并通过施加电磁场可逆的第一位置(6)之间是可移动到第二位置(8),其中,所述定子(10)两个,特别是相反的方向轴向极化,环形永久磁铁(12,14), 用于产生电磁场的线圈(16),以及具有两个定子极片(20,22),以及手术器械中的复位元件(18)。 根据本发明(1)的致动器的特征在于,所述环形永久磁铁(12,14)包括硬磁颗粒,这些颗粒被嵌入在塑料基质。