Patent ID: 6238427
Filing Date: 2001-05-29
Classification: A61F

Abstract:
A therapeutic heat transfer pad for application to a body area comprisinga pad assembly including two sheets of impervious material, said sheets having perimeters, respectively, an edge seal connecting said sheets to one another continuously along said perimeters to form a fluid receiving cavity between said sheets, a plurality of inner seals disposed interiorly of said edge seal at which said sheets are connected to one another to form a plurality of interconnected fluid passages in said pad assembly;first and second fluid inlet tubes extending into said fluid receiving cavity from externally of said pad assembly for introduction of a heat transfer fluid into said fluid passages, said inlet tubes entering said fluid receiving cavity at the same location and terminating at open ends, respectively, disposed within said fluid receiving cavity and through which the heat transfer fluid is introduced in said fluid passages, one of said inlet tubes extending into said fluid receiving cavity a greater distance than the other such that said open ends are in communication with different ones of said fluid passages; andan outlet tube extending into said fluid receiving cavity from externally of said pad assembly and terminating at an open end disposed within said fluid receiving cavity for removing the heat transfer fluid therefrom.