Tools for sheathing treatment devices and associated systems and methods

A system for sheathing a treatment device, the system comprising:

• the treatment device having an elongated member and a first element and a second element at a distal region of the elongated member, a sheath configured to receive the treatment device in a constrained state therethrough;
• a sheathing tool comprising:
• a first channel extending to a first opening and configured to receive at least a portion of the sheath, and a second channel extending to a second opening, the second opening surrounded by a sidewall and configured to receive the treatment device in the constrained state therethrough, wherein the second opening is spaced apart from the first opening by a gap, and wherein a length of the gap allows the first element to self-expand over the sidewall while the second element generally maintains its diameter in the constrained state while crossing the gap;
• a housing configured to be detachably coupled to the sheath and the sheathing tool, wherein a majority of the length of the sheath is contained within a perimeter of the housing such that a user may manipulate both ends of the sheath and/or treatment device.