Implantable electrode for chronic recording from skeletal muscle

An implantable electrode has been developed for recording chronically from skeletal muscle, It consists of two Pt-Ir wires embedded on a silicone rubber block. The electrode was implanted on the longissimus thoracis muscle of rabbit. The impedance changes of the implanted electrode that take place over time were studied. After about two months the impedance value of the implanted electrode became steady.