Figure 1 An Omni-Tract retractor mounted to the bed at the level of mid-abdomen, with retractor arms placed in a wide-V configuration, over the upper body. The Ecolab Scope Pillow Warmer Drape is stretched over the retractor arms forming a barrier between the operative field and the surgeon and secured with snaps to the self-retaining retractor to maintain the tightness of the drape.