ConMed Linvatec Hall Surgical Blades, Sterile SAGITTAL SAW BLADE, Catalog # K121, K141, K142, K143, K144, K146, K147, K148, K151, K152, K153, K154, K155, and K156. || ConMed Linvatec Hall (R) Surgical Blades are intended for use in small bone or large bone orthopedic surgeries. These blades are designed to cut bone in an oscillating plane.