Variable pressure relief inflated cushion
AssigneeAquila Corporation of Wisconsin
InventorSteve Kohlman
Life of this patent
Estimating the term…
Abstract
A cushion having a plurality of inflatable and deflatable cells useful for periodically shifting the points of contact between the cushion and a body supported by the cushion in order to reduce or eliminate the development of pressure sores. The cushion includes one or more of (i) at least two encircling cells shaped so as to define a central concavity in the upper surface of each of the encircling cells, (ii) at least one repositionable cell, (iii) at least two cells having contoured upper surfaces which define a longitudinally extending laterally concave channel, and (iv) two groupings of independently inflatable and deflatable cells arranged asymmetrically about a longitudinal axis.
Claims30
A cushion comprising (a) laterally spaced sides, longitudinally spaced ends, transversely spaced major surfaces, and (b) a plurality of inflatable and deflatable cells with transversely spaced upper and lower surfaces wherein at least two of the cells are a first encircling cell and a second encircling cell (i) shaped so as to define a central concavity in the upper surface of each of the first and second encirclingcells, (ii) symetrically configured and arranged on opposite sides of a central longitudinal axis, and (iii) independently inflatable and deflatable.
A cushion comprising (i) a base having laterally spaced sides, longitudinally spaced ends, and transversely spaced first and second major surfaces, and (ii) a plurality of inflatable and deflatable cells with at least one cell repositionably attached to the first major surface of the base for allowing repositioning of the cell on the base (A) independently of at least one other inflatable and deflatable cell and (B) in at least one of the longitudinal and lateral directions.
A cushion comprising (a) a base having laterally spaced sides, longitudinally spaced ends, and transversely spaced first and second major surfaces, and (b) a plurality of inflatable and deflatable cells attached to the first major surface of the base with transversely spaced upper and lower surfaces wherein at least two of the cells are contoured cells with each contoured cell independently having an upper surface defining a longitudinally extending laterally concave channel.
A cushion comprising (i) a base having laterally spaced sides, longitudinally spaced ends, and transversely spaced first and second major surfaces, and (ii) a plurality of inflatable and deflatable cells, (iii) wherein (a) at least a majority of the cells are symmetrically configured and arranged on opposite sides of a central longitudinal axis, (b) a first set of the symmetrically configured and arranged cells are jointly inflatable and deflatable, (c) a second set of the symmetrically configured and arranged cells are jointly inflatable and deflatable, and (d) the first set of jointly inflatable and deflatable cells are asymmetrically configured and arranged relative to the second set of jointly inflatable and deflatable cells on opposite sides of the central longitudinal axis.
Dependencies are inferred from the claim text.