초록 ▼

Provided in order to avoid or at least reduce the problems produced by the passive electrode of a heart pacemaker system is a layer having a high double layer capacitance at the phase boundary with the bodily fluid. Advantageous to that end is a porous layer comprised of a carbide, nitride or carbon

Provided in order to avoid or at least reduce the problems produced by the passive electrode of a heart pacemaker system is a layer having a high double layer capacitance at the phase boundary with the bodily fluid. Advantageous to that end is a porous layer comprised of a carbide, nitride or carbonitride of at least one of the metals titanium, vanadium, zirconium, niobium, molybdenum, hafnium, tantalum or tungsten. The layer can also be comprised of activated carbon with a microporous exposed surface. The layer is produced in the simplest manner by means of roughening the existing electrode surface at its active area.

대표청구항 ▼

A heart pacemaker system comprising a heart pacemaker having a metallic heart pacemaker housing, and at least one active electrode, the heart pacemaker housing having a region serving as a passive electrode, said region having a surface layer forming relatively high double layer capacitance at the p

A heart pacemaker system comprising a heart pacemaker having a metallic heart pacemaker housing, and at least one active electrode, the heart pacemaker housing having a region serving as a passive electrode, said region having a surface layer forming relatively high double layer capacitance at the phase boundary between said region and the surrounding body fluid, and a remainder of the pacemaker housing of substantial area forming a double layer capacitance with said surrounding body fluid substantially less than that of said region, said remainder being formed by an external metallic surface of said pacemaker housing which is exposed to the body fluid.