초록 ▼

An electric field concentrated electrosurgical electrode (e.g., blade, forceps or the like) wherein there is provided a conducting member having an edge that is at least partly sharpened and coated over most of its surface with electrical insulating non-stick material so as to produce a an instrumen

An electric field concentrated electrosurgical electrode (e.g., blade, forceps or the like) wherein there is provided a conducting member having an edge that is at least partly sharpened and coated over most of its surface with electrical insulating non-stick material so as to produce a an instrument having a slightly projecting uncoated region to produce a highly concentrated electric field and a highly concentrated transfer of electric energy thereacross when employed in an severing mode but energy transfer by capacitive coupling when employed in a coagulating mode.

대표청구항 ▼

[ What is claimed is:] [1.] An electrosurgical electrode member for performing operative procedures on a patient comprising a conducting electrode having a main body formed with a plurality of peaked portions that extend therefrom, said main body being adapted for communicating radio frequency elect

[ What is claimed is:] [1.] An electrosurgical electrode member for performing operative procedures on a patient comprising a conducting electrode having a main body formed with a plurality of peaked portions that extend therefrom, said main body being adapted for communicating radio frequency electrical energy to patient tissue for performing operative procedures thereupon, an insulating coating covering said main body except for an operative surface angularly orientated with respect to said plurality of peaked portions, energy concentrating means including said operative surface for concentrating electrical energy transferred from said operative surface to tissue of said patient when said operative surface engages said tissue, and means including said insulating coating effective when said operative surface is not in contact with said tissue and when said insulating coating is in contact with said tissue for transferring electrical energy across said coating by capacitive coupling to said tissue for cauterizing said tissue.