An apparatus and method for controlling a brushless DC motor, which allows an ignition phase current to be ignited in advance by advancing an ignition time of the ignition phase current by a certain time, thus providing a sufficiently increased phase current is provided to the brushless DC motor during an actual phase commutation period. The system includes a head pillow and a leg pillow. The data of the document is then supplied to the application according to a user-specific or application-specific policy. Thus, the laborious threading and unthreading of spacer tapes is not necessary. In various forms, the bowel retractor devices are configurable from a collapsed position wherein the retractor may be inserted through a trocar cannula or other opening in a patient’s body to a second expanded position wherein at least a portion of the patient’s bowel may be advantageously supported in a desired position.