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Cushioning devices (pads) designed to reduce pressure on specific areas or the whole body. These pads may consist of a mass of soft material (e.g., gel, foam) that may be wrapped into a flexible cover as a small cushion or as sealed enclosures filled with a fluid (e.g., air, water). Dedicated pressure relief pads may be conformed in a variety of shapes and sizes. They are mainly used to distribute localized pressure to larger body areas or to shift the body weight to a different position, especially to prevent or alleviate pressure sores. The pads are frequently used on top of chairs, wheelchairs, tables, and beds; some of these pads are also used as positioning aids.
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