Abstract: A universal air surface may include a plurality of inflatable air chambers disposed in parallel arrangement with each other, wherein a first side wall and a second side wall of the plurality of inflatable air chambers are asymmetrically to each other about a central axis of the plurality of inflatable air chambers to accommodate a manifold routed adjacent to a first lower end wall of the plurality of inflatable air chambers. A first void is formed between the first lower end wall of the plurality of inflatable air chambers, a bed frame, and a first side rail. A second void is formed between the second lower end wall, the bed frame, and a second side rail; wherein a first cross sectional area of the first void is greater than a second cross sectional area of the second void. Methods of routing the manifold within the first void are disclosed.

Abstract: An air foam mattress system includes a foam top component, and a foundation component including a plurality of segmented, individually wrapped, inflatable air cells allowing for a plurality of pivot points, a segmented perimeter, and individual pressure adjustment of the segments for maximum patient comfort in all articulated-bed positions. In an embodiment, the air cell contains a u-shaped insert providing segmented perimeter sections integral to the air cell. In another embodiment, the air-cell contains a trapezoidal shaped insert with multiple segments having different degrees stiffness.

Abstract: An air foam mattress system includes a foam top component, and a foundation component including a plurality of segmented, individually wrapped, inflatable air cells allowing for a plurality of pivot points, a segmented perimeter, and individual pressure adjustment of the segments for maximum patient comfort in all articulated-bed positions. In an embodiment, the air cell contains a u-shaped insert providing segmented perimeter sections integral to the air cell. In another embodiment, the air-cell contains a trapezoidal shaped insert with multiple segments having different degrees stiffness.

Abstract: An air foam mattress system includes a foam top component, and a foundation component including a plurality of segmented, individually wrapped, inflatable air cells allowing for a plurality of pivot points, a segmented perimeter, and individual pressure adjustment of the segments for maximum patient comfort in all articulated-bed positions. In an embodiment, the air cell contains a u-shaped insert providing segmented perimeter sections integral to the air cell. In another embodiment, the air-cell contains a trapezoidal shaped insert with multiple segments having different degrees stiffness.

Abstract: An air foam mattress system includes a foam top component, and a foundation component including a plurality of segmented, individually wrapped, inflatable air cells allowing for a plurality of pivot points, a segmented perimeter, and individual pressure adjustment of the segments for maximum patient comfort in all articulated-bed positions. In an embodiment, the air cell contains a u-shaped insert providing segmented perimeter sections integral to the air cell. In another embodiment, the air-cell contains a trapezoidal shaped insert with multiple segments having different degrees stiffness.

Abstract: An air foam mattress system includes a foam top component, and a foundation component including a plurality of segmented, individually wrapped, inflatable air cells allowing for a plurality of pivot points, a segmented perimeter, and individual pressure adjustment of the segments for maximum patient comfort in all articulated bed positions. In an embodiment, the air cell contains a u-shaped insert providing segmented perimeter sections integral to the air cell. In another embodiment, the air cell contains a trapezoidal shaped insert with multiple segments having different degrees of foam stiffness.

Abstract: An air foam mattress system includes a foam top component, and a foundation component including a plurality of segmented, individually wrapped, inflatable air cells allowing for a plurality of pivot points, a segmented perimeter, and individual pressure adjustment of the segments for maximum patient comfort in all articulated bed positions. In an embodiment, the air cell contains a u-shaped insert providing segmented perimeter sections integral to the air cell. In another embodiment, the air cell contains a trapezoidal shaped insert with multiple segments having different degrees of foam stiffness.

Abstract: A fluid mattress is formed by a top sheet, a bottom sheet, and a gusset panel extending between the peripheral edges of the sheets. The mattress has square corners resulting from a preferred method of construction wherein a die is provided with a curved surface having a radius R1. Material to be joined in the corner of the mattress is provided with a radius of curvature R2 which is dependent upon the radius R1. In a preferred method step, the centers of curvature of the radii R1 and R2 are aligned and the material is folded in a manner to minimize the excess of material and the resulting flow of material during the formation of a heat seal.

Abstract: A mattress includes a first bag forming a first cavity and being disposed within a second bag of substantially the same size. Each of the bags includes a pair of generally flat portions connected at a peripheral edge. Two separate continuous lap seams join the bags inwardly of their edge portions on opposite sides of the bags. These seams define with the edge portions of the bags a second cavity which is disposed around the first cavity. The first cavity can be filled with water to form a water mattress and the second cavity can be filled with air to form a peripheral air frame.In a preferred method, the mattress can be formed from four vinyl sheets of the same size using only four horizontal lap seams. The first bag can be provided with an inner peripheral lap seam by removing a ground rod associated with a heat sealer through a water valve. The second bag can be provided with an external peripheral seam by removing the ground rod through an air valve.