Patent ID: 8361133

Claim:
A patient warming appliqué system comprising: an appliqué including: a cover layer with openings therein, a backing layer, a tape layer on the backing layer for releasably securing the appliqué to the patient's skin, a release layer over the tape layer, an array of spaced encapsulated cells each including: a chemical heating mechanism beneath the cover layer, a separation layer under the chemical heating mechanism, and a phase change gel sheet between the separation layer and the backing layer, the phase change gel sheet formulated to melt when the chemical heating mechanism is activated, and a scrim layer supporting the gel sheet; zones of weakness between the spaced cells allowing individual cells or a subset of the cells to be removed from the appliqué, the zones of weakness including perforation lines between the spaced cells, the interstices of intersecting perforating lines each including an orifice through the layers; and a gas impermeable package about the appliqué.