Figure and legend are copyrighted by “In F. H. Kobeissy, C.E. Dixon, R.L. Hayes & S. Mondello, eds. Injury Models of Central Nervous System: Methods and Protocols. Humana Press: New York, pp. 231-251, 2016.” Figure 1. Schematic diagram of fluid percussion injury device (Model 01-B Custom Design & Fabrication). Luer-lock outlet port (1), Luer-lock bubble removal port (2), transducer housing (3), fluid cylinder (4), fill port (5), Piston and O-rings (6), oscilloscope (7), transducer amplifier (8), protractor (9), and impact hammer (10).