| 摘要 |
The Automatic Patient Turner is the ultimate in pressure sore prevention by automatically, periodically, and alternately tilting, and then laterally turning an immobile patient 180 degrees, from one complete side to the other in a manner similar to but gentler and less intrusive than manual turning. This is accomplished by the patterned, sequential inflation and deflation of six strategically placed inflatables. When sandwiched between a pair of knee inflatables, the bent knees act as a lever arm in the turning process. The inflation of an elongated inflatable beneath the flexible mattress raises that longitudinal side causing the bent knees to move from a perpendicular position to a 120° angle. Due to the force of gravity, the bent knees descend laterally in the direction of the turn as the knee inflatables deflate. The descending knees pull the entire body completely to the side of the turn as a back-support pillow inflates.
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