A surgical drape according to the present invention includes a disk member for removable attachment to a thermal treatment system dislodgment mechanism. The mechanism manipulates the drape to dislodge congealed sterile liquid adhered to the sides of a container formed by the drape within a thermal treatment system basin. The disk member includes a base and a cover, where the cover is disposed on the top portion or sterile surface of the drape. The drape sterile surface may further include other disk member components (e.g., base, etc.). In addition, the drape may further include one or more sensors to detect conditions within the drape container.