A pull handle that is ergonomically designed to avoid unnatural stresses andor discomfort to the user’s body and joints through the range of motion. The slurry used is based on ethanol-water and contains metal carbide and metallic raw materials as well as stearic acid and a low concentration of polyethylenimine. The catheter is fluidically coupled to a console that provides a heated or cooled heat transfer working fluid to exchange heat with the heat transfer element, thereby heating or cooling blood. The serving utensil may further include a pair of guard members integrally connected to, and extending perpendicularly outward from, the pair of elongated arms.