Patent ID: 8333292

Claim:
A lid for covering an interior of a medical waste receptacle base, said lid comprising: a cover sized and shaped for covering the interior of the medical waste receptacle base, the cover having a generally circular opening sized for passing medical waste into the interior of the base, said opening including a generally circular upper rim surrounding an upper central axis and a generally circular lower rim surrounding a lower central axis that is non-co-linear with said upper central axis; a generally circular closure sized for blocking the opening; and a guide extending along the cover for guiding the closure between an open position, in which the closure is at least partially out of alignment with the opening to allow medical waste to pass through the opening for receipt in the interior of the base, and a closed position, in which a center axis of the closure is aligned with the upper rim central axis to block the opening to prevent medical waste from passing through the opening, the closure being moveable from the closed position to a locked position in which the center axis of the closure is coincident with the lower central axis.