Control for reliable assembly and disassembly of two functional units of a multi-part medical device

A method of mechanically coupling two functional units of a two-piece or multi-piece medical device, the medical device having two device units that can be mechanically coupled to each other, the two device units having two functional units that can be mechanically coupled to each other in order to be able to actuate the second functional unit by virtue of the first functional unit in a mechanically coupled state, the first functional unit being controlled electrically or electronically and has a mechanical coupling segment which can be brought into a coupling position in order to couple with a corresponding mechanical coupling segment of the second functional unit, said method comprising the steps of:

• detecting a relative position or a distance of the two device units relative to each other;
• and
• configuring an electrical or electronic control of the first functional unit in such a manner that the mechanical coupling segment of the first functional unit is brought into the coupling position only if the two device units are in a specific relative position with respect to each other or fall below a predetermined minimum distance with respect to each other.