Disposable endoscope cover, reusable endoscope, and system

A system comprising;

• a cover including
• a first body comprising a first cavity, and
• a hollow cannula in sealed communication with said first body and extending distally from said first cavity, said hollow cannula including a lumen open to said first cavity, said first body defining an end wall at a distal end of said first cavity, wherein said end wall radiates outwardly from an interface between said distal end of said first cavity and said hollow cannula, and
• a reusable endoscope including
• a hand piece having a second body,
• a probe extending distally from said second body, and
• a retractable shield covering at least a portion of said probe, said retractable shield having a distal end and a distally-facing end face located thereat,
• wherein said end wall is configured to engage with said end face of said retractable shield, upon an extent of distal movement of said retractable shield relative to said end wall, so as to restrict further distal movement of said retractable shield, and, wherein, upon said second body being inserted into said first cavity, said probe is inserted into said lumen of said hollow cannula to move distally relative to the retractable shield and extend distally beyond said distal end of said retractable shield, with said end face of said retractable shield being in engagement with said end wall.