| 摘要 |
<p>A mattress assembly (10) for the treatment and prevention of decubitus ulcers. The assembly includes a base support (12), mattress core (14) disposed on the support and defining a plurality of discrete, air permeable, hydrophobic air cells (28), and a pair of lateral bolsters (16) disposed adjacent the sides of the mattress core. A top sheet (18) formed of a fluid permeable, highly elastic, low friction water wicking material is disposed over the core (14) and bolsters (16) to provide a planar support surface which readily conforms to the irregularities in the topography of the body of a person resting thereon without wrinkling so as to minimize the shear forces acting on the skin and draw moisture away from the skin. A pump (24) is provided for directing air flow through a plurality of controllable valves (22) to and through the cells (28) of the mattress core (14) and top sheet (18) to inflate the cells for supporting a person thereon and maintaining the skin in a properly hydrated condition. A plurality of air impervious grids (40, 42) are differentially disposed on the cells to selectively restrict the passage of air through the cells (28) to selected areas thereby reducing the necessary capacity of the air pump (24).</p> |
