mimic the surface roughness as tissues microporous surfaces are possibly acceptable while they are also not necessary infusion of fluid through the jaws is to be maintained in a continuous flow during and throughout the application of rf energy in order for the desired tissue effect to be achieved with the described structure and similar structures and methods within the scope of the invention numerous advantages are obtained deeper and quicker coagulation is possible the conductive solution infused onto and into the tissues maintains relatively consistent maximal electrical contact areas substantially preventing hot spots and allowing higher power than soft coagulation little to no arcing cutting smoke or char is formed jaw and tissue surface temperatures are lower than otherwise resulting in significantly less adhesion of tissue to jaw surfaces and substantially no desiccation one mode of coagulation may be used in the place of the three modes soft forced and spray coagulation is possible of even the most challenging oozing tissues such as lung liver and spleen tissues coagulation is more precise where other coagulation modes sometimes spark to the sides and produce coagulation where not desired also and importantly electrosurgical cutting by desiccation may be avoided and tissue sealing achieved as desired tissue sealing may occur alone or be accompanied with mechanical cutting as by a retractable and advancable blade as in u.