The two systems were quite different in form and function. The cart design needed to be carefully considered so that it worked seamlessly with either device. It also needed to carry multiple compressed gas tank sizes, infusion liquids, associated accessories and meet the ergonomic requirements of a range of users. The RotaGo Cart features a low shelf for gas tank storage to reduce back-strain, a low center of gravity for safety, a small turning radius and ample accessory storage.