| 摘要 |
A bolster structure system possesses anti-decubitus ulcer characteristics, and may cooperate with a mattress overlay also having and-decubitus ulcer capabilities as part of a mattress overlay system, in which multiple elongate, positionally adjustable, relatively moveable bolsters are configured for selective placement in conditions of lateral under-engagement with the sides of an overlay to create inclined, lateral side elevations of these sides at locations along the length of the overlay. The bolster structure and overlay may each include a dynamic-response core expanse formed of an open-cell, compressible viscoelastic foam coated with an elastomeric, moisture- and gas-flow-managing, differential-thickness coating structure load-transmissively bonded to the entirety of the outside of said core expanse to function as a dynamically-responsive unit therewith. |
| 主权项 |
1. A mattress overlay system, comprising:
an elongate mattress overlay having sides and ends defined by spaced upper and lower faces and a perimetral edge extending therebetween; and elongate, positionally adjustable, relatively moveable, lateral-ramp, under-overlay bolster structure configured to be selectively placeable in conditions of lateral under-engagement with the sides of the overlay to create inclined, lateral-side elevations of these sides at locations along the length of the overlay; wherein the overlay and the bolster structure each further comprise:
a dynamic-response core expanse formed of an open-cell, compressible viscoelastic foam having, in the overlay and the bolster structure, a pre-stressed, about 8-10% compressed, relaxed-state volume to create a pre-compression condition in the overlay and bolster structure; andan elastomeric, moisture- and gas-flow-managing, differential-thickness coating structure load-transmissively bonded to the entirety of the outside of said core expanse to function as a dynamically-responsive unit therewith, and possessing a relaxed-state, internal, pre-stressed tension condition, with the coating structure in some, respiration-window regions, being formed to be moisture-pervious and gas-permeable, and in other, non-respiration regions, being formed to be substantially moisture-impervious and gas-impermeable, and having an outer surface adapted to provide an interfacial stiction grip between the sides of the overlay and the bolster structure when engaged wherein the bolster structure includes multiple elongate bolsters each having a length less than or equal to that of the overlay, a width less than or equal to approximately one-third that of the overlay, and a variable thickness across at least a portion of the width of the bolster; wherein the bolsters define a triangular lateral cross-section along the length thereof; wherein the triangular cross-section is a right triangular cross section; wherein the outer surface of the coating structure portions corresponding to at least the side portions of the lower face of the overlay and the side of each of the bolsters corresponding to the long side of the triangle is provided with said interfacial-stiction-grip textural characteristic; and wherein said interfacial-stiction-grip textural characteristic is provided by means of an allover distribution of suction-cup-like dimples of said coating structure portions. |
