A lexicon of support surfaces for beds
A lexicon of support surfaces for beds
Here are some common terms you’ll encounter when dealing with support surfaces:
STASIS SUPPORT SURFACES (require no power source):
Overlays: Usually made of high-density foam or air-cushions that are placed on top of a standard mattress. Fluid-filled overlays are also available.
Mattress replacements: Pressure-reducing mattresses that fit standard bed frames. They can consist of foam, a combination of foam and air cushions, or fluid-filled compartments.
DYNAMIC SUPPORT SURFACES (require a power source):
Low air-loss overlays or mattress replacements: Consist of air-filled cushions that are inflated by a constant or intermittent flow of air. Air continuously escapes to accommodate patient movement. More advanced models are equipped with automatic sensors that detect changes in a patient’s position and adjust air pressure accordingly.
Air-fluidized beds: Highly specialized integrated bed-mattress systems consisting of a mattress filled with ceramic microspheres that look like sand to the naked eye. Warm air forced through the spheres causes them to act like a fluid. Air-fluidized systems are large and cumbersome, which may limit their use in home care. n
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