Single-use suppository insertion device and method

A method for disabling a single-use suppository insertion device after one-time use, the method comprising:

• activating a disabling feature of a barrel or a plunger during operational motion of the plunger relative to the barrel, the barrel being sized and shaped to fit within a patient's anal canal, the plunger being axially movable relative to the barrel and configured to be movably coupled to the barrel, activation of the disabling feature rendering the suppository insertion device inoperable after one-time use, the plunger including a mid-portion, an insertion end that is wider than the mid-portion, and a finger interface end, wherein the disabling feature is positioned along the mid-portion of the plunger, and wherein activating the disabling feature includes irreversibly engaging the disabling feature of the plunger or the barrel with a structural element of the barrel or the plunger during insertion of or withdrawal away from a suppository, wherein the structural element includes plural fins extending from an inner surface of the barrel at radially spaced intervals, each fin extending axially along a length of the barrel.