Mattress assembly for the prevention and treatment of decubitus ulcers

A mattress assembly for the treatment and prevention of decubitus ulcers and for the treatment of other conditions of the skin and/or underlying tissue, said assembly comprising:

• a mattress core constructed of a spun-bonded, non-woven polyolefin material and defining a plurality of discreet, air permeable air cells;
• a pair of lateral bolsters disposed adjacent the sides of said core;
• spacing means secured to and extending between said bolsters below said core;
• a top sheet disposed over said core and said bolsters for defining a planar support surface for a person resting thereon, said sheet being formed of a blend of elastomeric and water wicking fibers to render said sheet air and liquid permeable, highly elastic, of low friction, and water wicking;
• a plurality of air impervious multi-directional grids differentially disposed on said air cells to selectively restrict the passage of air through said cells to selected areas of said top sheet;
• a liquid impervious liner disposed below said core and between said core and said bolsters for gathering and disposal of said core and top sheet and any contaminants thereon;
• air supply means for providing air flow to and through said cells and said top sheet to inflate said cells for supporting a person thereon and maintaining the skin of a person thereon in a properly hydrated condition;
• and means for controlling the air pressure within said cells to maintain the contact pressure of the mattress assembly against the skin of a person thereon at a desired level.

A mattress assembly for the treatment and prevention of decubitus ulcers and for the treatment of other conditions of the skin and/or underlying tissue, said assembly comprising:

• a mattress core constructed of a woven material and defining a plurality of discreet, air permeable air cells;
• a pair of lateral bolsters disposed adjacent the sides of said core;
• spacing means secured to and extending between said bolsters below said core;
• a top sheet disposed over said core and said bolsters for defining a planar support surface for a person resting thereon, said sheet being formed of a blend of elastomeric and water wicking fibers to render said sheet air and liquid permeable, a highly elastic, of low friction, and water wicking;
• a plurality of air impervious multidirectional grids differentially disposed on said air cells to selectively restrict the passage of air through said cells to selected areas of said top sheet;
• a liquid impervious liner disposed below said core and between said core and said bolsters for gathering and disposal of said core and top sheet and any contaminants thereon;
• air supply means for providing air flow to and through said cells and said top sheet to inflate said cells for supporting a person thereon and maintaining the skin of a person thereon in a properly hydrated condition;
• and means for controlling the air pressure within said cells to maintain the contact pressure of the mattress assembly against the skin of a person thereon at a desired level.

A mattress assembly for the treatment and prevention of decubitus ulcers and for the treatment of other conditions of the skin and/or underlying tissue, said assembly comprising:

• a mattress core defining a plurality of discreet air cells, said core being constructed of an air permeable material which is sufficiently dense and/or hydrophobic to render said cells aqueous liquid impermeable;
• a pair of lateral bolsters disposed adjacent the sides of said core;
• spacing means secured to and extending between said bolsters below said core;
• a top sheet disposed over said core and said bolsters for defining a planar support surface for a person resting thereon, said sheet being formed of a blend of elastomeric and water wicking fibers to render said sheet air and liquid permeable, highly elastic, of low friction, and water wicking;
• a plurality of air impervious multidirectional grids differentially disposed on said air cells to selectivity restrict the passage of air through said cells to selected areas of said top sheet;
• a liquid impervious liner disposed below said core and between said core and said bolsters for supporting a person thereon and maintaining the skin of a person thereon in a properly hydrated condition;
• and means for controlling the air pressure within said cells to maintain the contact pressure of the mattress assembly against the skin of a person thereon at a desired level.