Patent ID: 8751014

Claim:
Medical microelectrode for implantation into soft tissue of a person or animal resistant to displacement in the tissue by inertia, the electrode having a front end, a rear end and a density at 20° C. of from 0.80 to 1.15, in particular from 0.90 to 1.07, more particularly from 0.95 to 1.03, comprising any of: an electrically conductive tubiform lead comprising a metal and/or an electrically conductive polymer, the lead having an outer face and a sealed lumen; an electrically conductive wire lead comprising a metal and/or an electrically conductive polymer, the lead having a surface and a buoyant element of a density of less than 1.0 attached to the surface; wherein a portion of the outer surface or the surface, respectively, is electrically insulated.