Control device for a surgical instrument

An instrument rotation mechanism for a surgical scoping device, the instrument rotation mechanism comprising:

• a housing mountable at a proximal end of an instrument channel of the surgical scoping device;
• a proximal actuator mounted to rotate relative to the housing about a longitudinal axis of the instrument channel;
• an elongate force transfer element configured to be slidably mounted within and to extend along the instrument channel of the surgical scoping device;
• a proximal coupler operably engaged with the proximal actuator and elongate force transfer element to transform rotational movement of the proximal actuator relative to the housing about the longitudinal axis of the instrument channel into linear movement of the elongate force transfer element relative to the instrument channel along the longitudinal axis of the instrument channel;
• a distal end effector that is securable to a distal portion of a surgical instrument mounted in the instrument channel;
• and
• a distal coupler operably engaged with the distal end effector and elongate force transfer element to transform linear movement of the elongate force transfer element relative to the instrument channel along the longitudinal axis of the instrument channel into rotational movement of the distal end effector about the longitudinal axis of the instrument channel and relative to the instrument channel.