Patent ID: 8352012
Filing Date: 2013-01-08
Classification: A61B,A61N

Abstract:
1. An array of biomedical electrodes, each biomedical electrode providing at least first and second electrical nodes for connection to medical equipment, said biomedical electrode comprising a first electrical node including a disc of conductive material having a diameter d 1 , and at least three rings of conductive material, said at least three rings including a first ring and an outermost ring, said first ring providing a second electrical node and being concentric with the disc and having a diameter d 2 that is larger than d 1 , said outermost ring being concentric with the disc and having a ring thickness t 2 such that (4≦d 1 /t 2 ≦6), each of said at least three rings being coupled to a switching network, and said outermost ring having a diameter of at least 3 cm, wherein a subset of said array of biomedical electrodes is employed for stimulation as well as sensing using said switching network.