US 12,064,383 B2
Method for reducing tissue interface pressure
Michael A. Kokko, Lyme, NH (US); Spencer C. Brugger, Orford, NH (US); Eric L. Yuan, Lebanon, NH (US); Amaris G. Ajamil, White River Junction, VT (US); Jeffrey J. Chu, Norwich, VT (US); and Richard M. Greenwald, Lebanon, NH (US)
Assigned to Sizewise Rentals, L.L.C., Eden Prairie, MN (US)
Filed by Sizewise Rentals, L.L.C., Eden Prairie, MN (US)
Filed on Aug. 7, 2020, as Appl. No. 16/987,757.
Claims priority of provisional application 62/884,448, filed on Aug. 8, 2019.
Prior Publication US 2021/0038455 A1, Feb. 11, 2021
Int. Cl. A61G 7/057 (2006.01); A61B 5/00 (2006.01); A61G 7/018 (2006.01)
CPC A61G 7/05769 (2013.01) [A61G 7/018 (2013.01); A61G 7/05776 (2013.01); A61B 5/442 (2013.01); A61B 5/447 (2013.01); A61B 2562/029 (2013.01); A61G 2203/34 (2013.01); A61G 2203/46 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for reducing tissue interface pressure on a support surface, the method comprising the steps of:
providing a support surface having one or more fluid chambers;
exhausting fluid from the one or more fluid chambers of the support surface from a known starting pressure in each of the one or more fluid chambers for a fixed time to achieve a desired level of immersion into the surface;
taking a set point reading from the one or more fluid chambers in the support surface to be used as a reference for maintaining the desired level of immersion to within a desired range from the set point for that chamber;
maintaining the desired immersion level of an individual in contact with the support surface within specified bounds over time;
actively and continuously redistributing pressure from tissues of the individual when on the support surface to the set point by redistributing the fluid from the one or more fluid chambers;
wherein the redistribution of fluid from the one or more fluid chambers occurs is controlled by adaptive task scheduling for the one or more fluid chambers based on a scoring system; and
wherein the scoring system is static using the set point for each of the one or more fluid chambers and assigning an offloading order based on the set point.