| 摘要 |
An apparatus and method for alleviating excessive pressure development on a body area are provided. The apparatus is preferably embodied in a cushion, and includes a bottom surface and a top surface which is spaced from the bottom surface and has a plurality of channels formed therethrough. A compressible inner layer is disposed between the top and bottom surfaces, and a plurality of elongate, inflexible members are supported by the inner layer and are disposed at least partially within the channels. The members have first ends that extend at least partially through the channels to project beyond the top surface, where the members are located at a neutral position in the absence of pressure. In operation, pressure applied to the first ends causes the members to be displaced axially along the channels away from the neutral position and toward the bottom surface without deformation. Therefore, applied pressure produced by contact with a body area creates a plurality of point pressures on the body area, and the undeformed displacement of the members acts to maintain the plurality of point pressures on the contacted body area and prevent widespread, excessive pressure from developing.
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