Tissue separating systems and methods

A system for separating an object from a patient tissue, comprising:

• a sheath having a proximal end and a distal end;
• and
• a cylindrical separator coupled with the distal end of the sheath, the separator having an internal lumen, an upper side, a lower side, a proximal end, and a distal end having a separating mechanism,
• wherein the internal lumen of the separator defines a central longitudinal axis and is sized to receive the object,
• wherein the distal end of the separating mechanism comprises a distal face oriented at an acute angle relative to the central longitudinal axis and extending in a planar fashion from the upper side to the lower side such that an entire diameter of the internal lumen is open at the distal face,
• wherein the distal face comprises an abrasive material,
• wherein the distal face is configured such that whereupon being pressed against patient tissue, the separating mechanism does not separate patient tissue, and whereupon rotating the separating mechanism, the separating mechanism separates patient tissue.