Passive control system for an everting sheath

An everting sheath system comprising:

• a reel rotatable about a rotational axis;
• a sheath having an interior cavity extending between a first portion and an opposite second portion of the sheath, wherein the second portion of the sheath is stored on the reel in an inverted configuration, and wherein the second portion of the sheath passes through the interior cavity and the first portion as the reel rotates about the rotational axis, the sheath everting from a retracted position to an extended position where the second portion of the sheath moves distally away relative to the first portion;
• and
• a torque mechanism operably coupled to the reel, the torque mechanism operable to directly or indirectly apply a passive torque to the reel to adjust a rate at which the sheath is released from the reel as the sheath everts from the retracted position to the extended position.