CPC A61G 7/05776 (2013.01) [A47C 27/082 (2013.01); A47C 27/083 (2013.01); A47C 27/10 (2013.01); A61H 9/0078 (2013.01); A47C 21/042 (2013.01); A47G 9/1027 (2013.01); A61G 7/05792 (2016.11); A61H 2201/0146 (2013.01); A61H 2209/00 (2013.01); G05B 2219/2608 (2013.01)] | 34 Claims |
14. A system for therapeutically supporting a user, comprising:
a therapeutic support surface overlay, said support surface overlay comprising:
a first flat flexible sheet and a second flat flexible sheet overlying said first flat flexible sheet, said second flat flexible sheet joined to said first flat flexible sheet by a generally sinuous seam, wherein regions of said first flat flexible sheet, corresponding regions of said second flat flexible sheet, and said seam cooperate to define:
a first selectively inflatable compartment comprising a first plurality of selectively inflatable cells, each of said first plurality of selectively inflatable cells defining a contact node having a contact node centroid when said first selectively inflatable compartment is inflated, said first plurality of selectively inflatable cells having a nodal contact density of at least two contact node centroids contained within a square area having a length of ten centimeters and a width of ten centimeters; and
a second selectively inflatable compartment comprising a second plurality of selectively inflatable cells, each of said second plurality of selectively inflatable cells defining a contact node having a contact node centroid when said second selectively inflatable compartment is inflated, said second plurality of selectively inflatable cells having a nodal contact density of at least two contact node centroids contained within a square area having a length of ten centimeters and a width of ten centimeters; and
a control unit configured to selectively:
inflate said first selectively inflatable compartment such that the inflation pressure at each of said first plurality of selectively inflatable cells is greater than or equal to 1.9 pounds per square inch;
deflate said first selectively inflatable compartment;
inflate said second selectively inflatable compartment such that the inflation pressure at each of said second selectively inflatable cells of said second inflatable compartment is greater than or equal to 1.9 pounds per square inch; and
deflate said second selectively inflatable compartment.
|