Medical devices with electronic drive assemblies

A medical device, comprising:

• a handle including a proximal portion, a distal portion, and a middle portion between the proximal portion and the distal portion, wherein the distal portion is detachable from the middle portion by complementary mating elements;
• an articulation mechanism configured to control articulation of a shaft coupled to the handle;
• a first electronic drive assembly including a stepper motor configured to drive rotation of the middle portion and the distal portion relative to the proximal portion about a longitudinal axis of the handle;
• and
• a second electronic drive assembly including a stepper motor configured to drive rotation of the articulation mechanism about an axis transverse to the longitudinal axis.

A medical device, comprising:

• a handle including a proximal portion, a distal portion, and a middle portion between the proximal portion and the distal portion;
• a first electronic drive assembly configured to drive rotation of the middle portion and the distal portion relative to the proximal portion about a longitudinal axis of the handle;
• an articulation mechanism configured to control articulation of a shaft coupled to the handle;
• a second electronic drive assembly configured to drive rotation of the articulation mechanism about an axis transverse to the longitudinal axis;
• and
• a position switch electrically coupled to the second electronic drive assembly, wherein the position switch is configured to limit rotation of the articulation mechanism relative to the second electronic drive assembly.