Table 1. Comparison of various parameters of hand held shock wave generator and diaphragmless shock tube.

Device	Hand held shockwave generator tube	Diaphragmlessshock tube
Type of experiment	In vitro	In vivo
Diameter of the tube	2 mm	50 mm
Cross sectional area	3 mm2	1963 mm2
Energy of the shock wave	1.25 J	403 J
Energy per unit area at the exit	416 mJ/mm2	205 mJ/mm2
Peak over pressure (Standoff distance)	3.24 bar (20 mm)	0.48 bar (290 mm)
Duration of peak pressure	50 μs	600 μs
Impulse per unit area	0.9545 PaS	18.21 PaS