| 摘要 |
<p>A mattress, which is particularly effective in preventing and relieving decubitus ulcers, comprises a plurality of inflatable sections (10). Inflation means (26, V1, V2) associated with the mattress inflate at least one of the inflatable sections at a first, higher pressure (P1) and simultaneously inflate at least one of the inflatable sections at a second, lower pressure (P2). By sequentially changing the sections to which the high and low pressures are applied, different areas of a patient's body may be pressure relieved in turn, allowing blood to flow in the parts of the patient in contact with a low pressure section, while still providing support for the patient. There may be a number of groups of sections (10a,10b,10c), all the sections in each group being interconnected, and each group being sequentially inflated at the lower pressure for a preset period. <IMAGE></p> |
