Heart pacemaker system

Details Heart pacemaker system Heart pacemaker system

1984-01-11

1986-07-29

Kamm, William E.

Surgery

Truss

Pad

A61N 104

Patent

active

046026371

ABSTRACT:
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.

REFERENCES:
patent: 3735766 (1973-05-01), Bowers et al.
patent: 4010759 (1977-03-01), Boer
patent: 4011861 (1977-03-01), Enger
patent: 4033357 (1977-07-01), Helland et al.
patent: 4248237 (1981-02-01), Kenny
patent: 4281669 (1981-08-01), MacGregor
patent: 4440178 (1984-04-01), Bussard et al.
Guyton et al., "Theory and Design of Capacitor Electrodes for Chronic Stimulation" Med. and Bio. Eng., vol. 12, No. 5, Sep. 1974, pp. 613-620.
Siemens-Elema brochure, "The Multiprogrammable Pulse Generator 668", Sep. 1979 (17 pages).

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