A microcooling device is provided. The invention comprises a method for preserving motion in a prosthetic disc having at least one articulating surface comprising applying an anti-infiltration agent on and around an articulating surface of the prosthetic disc. The invention is also directed to processes for melt phase polymerization of molten polymer for making the filaments. The method also includes the steps of fastening an electronic assembly cover to the walls and attaching a door to one end of one of the walls, in which the door, the walls, the top, and the floor form an enclosure. Upon impact, the side walls of the tubular members bulge or displace laterally to absorb impacts.