提供了一种用于由壳体下部（15）和上壳体部分（16）的医疗装置提供了一种用于控制单元（1）具有触摸屏（2）的保护性壳体（14）。 下壳体部分（15）被成形为使得其内侧操作装置（1）的部分适于或可适应，并且具有用于连续紧固壳体上部（16）的圆周表面。 上部壳体部件（16）是透明的，弹性的，使得在触摸屏上的上部壳体部件（16）的致动的有针对性的传动装置（2）是可能的，并且具有在那里在壳体下部的外周面（15）可固定的区域 是。 上部壳体部件（16）连接的液密到壳体下部（15），使得在操作单元（1）由所述保护壳体（14），其中，所述壳体上部（16）和壳体下部（15）是密不可分彼此连接封闭液密，和 保护壳体（14）具有低于插入件中提供的气压的压力。

There is provided a protective housing (14) for a control unit (1) with a touch screen (2) for a medical device consisting of a housing lower part (15) and an upper housing part (16). The lower housing part (15) is shaped such that an inner side thereof to portions of the operating device (1) adapted or adaptable, and has a circumferential surface for continuous fastening the housing upper part (16). The upper housing part (16) is transparent and resilient so that a targeted transmission of actuation of the upper housing part (16) on the touch screen (2) is possible, and has a region where it on the circumferential surface of the housing lower part (15) fixable is. The upper housing part (16) is connected liquid-tight to the housing lower part (15) so that the operating unit (1) is enclosed liquid-tight by the protective housing (14), wherein the housing upper part (16) and the housing lower part (15) are inextricably connected to each other, and the protective housing (14) has a pressure in the interior, which is lower than an intended in use air pressure.