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Span-america Medical Systems, Inc.

Mark D Chastain

Richard W Raburn

Edmund K Maier

Multiple varieties of patient support surfaces are presented with a common modular assembly primarily including a perimeter chassis and integrated upper support element. Perimeter bolsters provide relatively firmer support for gently prompting a patient towards the center of the bed, without obstructing regular entry and egress. The added stability facilitates safer transfers and better sitting at the edge of the bed. Pressure redistribution air cylinders (turned either longitudinally or laterally) are captured by shaped, slotted inner bolsters and underside arches of an integral foam topper. Each foam topper integrally incorporated may include a sloping heel pressure relief section for redistributing load to relatively more pressure-tolerant lower legs and calves.

Patient support surfaces

Multiple varieties of patient support surfaces are presented with a common modular assembly primarily including a perimeter chassis and integrated upper support element. Perimeter bolsters provide relatively firmer support for gently prompting a patient towards the center of the bed, without obstructing regular entry and egress. The added stability facilitates safer transfers and better sitting at the edge of the bed. Pressure redistribution air cylinders (turned either longitudinally or laterally) are captured by shaped, slotted inner bolsters aid underside arches of an integral foam topper. All such features work collectively to cradle and surround the air cylinders. The resulting interlocking, integrated design provides flexible progressive support while maximizing structural integrity. Different arrangements of air cylinders and static or dynamic performance thereof, either non-powered or powered, permit different embodiments to be created using the same modular assembly approach. Each foam topper integrally incorporated may include a sloping heel pressure relief section for redistributing load to relatively more pressure-tolerant lower legs and calves. At external valving arrangement for a static non-powered embodiment permits practice of a &ldquo;recharging&rdquo; technique using an air pump and self-calibrated valve, to return the air pressure in static air cylinders to their original manufactured specifications.

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Greer, SC, United States of America

Mark D Chastain