Endoscope attachment mechanisms and methods of use

An endoscope attachment assembly, comprising:

• an endoscope comprising a shaft and a housing, the housing comprising a first coupler at its distal end;
• and
• a first adapter comprising:
• a first channel running through the length of the first adapter from a first opening at a distal end of the first adapter to a second opening at a proximal end of the first adapter, wherein the shaft of the endoscope is configured to be threaded through the first channel;
• a second coupler configured to be locked to the first coupler of the endoscope after the shaft is threaded through the first channel, the second coupler comprising the second opening;
• and
• a rigid attachment segment configured to removably couple an outer surface of the first adapter in a second channel of an instrument or a second adapter, the rigid attachment segment comprising:
• a first groove configured to engage a first protrusion of the second channel, and
• a first section adjacent the first groove, the first section protruding relative to the first groove and including a first recessed indentation that lockingly engages a second protrusion of the second channel.