Patent ID: 7310546

Claim:
An artifact detection electrode for sensing neurophysiological signal artifacts in tissue structures, in the body, comprising: a first electrode needle having an insulated proximal portion and a sharp, uninsulated distal portion; a second electrode needle having an insulated proximal portion and a sharp, uninsulated distal portion; an electrically conductive, first elongate wire lead having a proximal end, an intermediate portion and a distal end; an electrically conductive, second elongate wire lead having a proximal end, an intermediate portion and a distal end; said first elongate wire lead being electrically connected to said first electrode needle proximal portion at said first elongate wire lead distal end; said second elongate wire lead being electrically connected to said second electrode needle proximal portion at said second elongate wire lead distal end; said first elongate wire lead having a circuit element connected in series therewith along said intermediate portion of said first elongate wire lead; and said first elongate wire lead intermediate portion and said second elongate wire lead intermediate portion being configured in a loop to define a recording field signal receiving antenna.