US 10,376,412 B2
Actively and selectively cooled cushioning surface
David M. Brienza, Allison Park, PA (US); Patricia E. Karg, South Park, PA (US); and Andrew J. Malkiewicz, Pittsburgh, PA (US)
Assigned to University of Pittsburgh—Of The Commonwealth System of Higher Education, Pittsburgh, PA (US)
Filed by David M. Brienza, Allison Park, PA (US); Patricia E. Karg, South Park, PA (US); and Andrew J. Malkiewicz, Pittsburgh, PA (US)
Filed on Jul. 16, 2013, as Appl. No. 13/943,772.
Claims priority of provisional application 61/672,202, filed on Jul. 16, 2012.
Prior Publication US 2014/0228918 A1, Aug. 14, 2014
Int. Cl. A61F 7/00 (2006.01); A61F 7/02 (2006.01); A61F 7/10 (2006.01)
CPC A61F 7/10 (2013.01) [A61F 2007/0056 (2013.01); A61F 2007/0076 (2013.01); A61F 2007/0219 (2013.01); A61F 2007/0268 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A cushioning surface for cooling a body part or tissue immersed into the cushioning surface, comprising:
a segmented fluid cushion comprising a plurality of cells interconnected to allow fluid to flow from each cell to at least one of the other plurality of cells;
wherein each of the cells comprises first and second opposing sides and one or more sidewalls which collectively define a chamber in which part of the fluid is disposed;
wherein one or more of the plurality of cells contains heat exchange material disposed in a clearance space within the chamber in each such cell near the second side of the cell;
a cooling element associated with and for removing heat from the one or more cells containing the heat exchange material, wherein the heat exchange material in each of the one or more cells is disposed on or very near the cooling element; and
wherein the heat exchange material in each of the one or more cells is disposed between the first and second sides so that only a body part or tissue reaching a level of immersion into the cushioning surface from the first side to the second side and into or near the clearance space of the one or more cells containing heat exchange material is cooled by such cells and the cooling element.