Table 1.

Thermal and electric properties of the materials.

Finite element region	Material	ρ(kg*m-3)	c(J*kg-1*K-1)	k(W*m-1*K-1)	σ(S*m-1)
Electrode	Nickel-Titanium	6450	840	18	1.108
Trocar	Stainless steel	21500	132	71	4.106
Insulated trocar	Polyurethane	70	1045	0.026	1.10-5
Tissue	Blood	1000	4180	0.543	0.667
Tissue	Liver	1060	3600	0.512	0.333