Catheter device having a coupling device for a drive device

A catheter device comprising:

• a hollow catheter defining a catheter cavity;
• a moveable shaft, rotatably disposed within the hollow catheter and at least partially disposed within the catheter cavity, the moveable shaft comprising a proximal end portion;
• a coupling device configured to releasably couple a drive device to the hollow catheter, the coupling device comprising:
• a coupling cavity comprising a chamber housing a germicidal gel, wherein at least a portion of the moveable shaft extends through the chamber;
• a connection disposed within the coupling cavity at the proximal end portion of the moveable shaft, the connection configured to connect the moveable shaft to a motor shaft;
• wherein the coupling cavity and the hollow catheter are arranged such that fluid can flow between the coupling cavity and the hollow catheter.