Implantable device having an electrolytic storage electrode

Details Implantable device having an electrolytic storage electrode Implantable device having an electrolytic storage electrode

1991-12-12

1994-05-17

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

607 61, 607 1, 607116, A61N 105

Patent

active

053124391

ABSTRACT:
An electrolytic, capacitive electrode, adapted to be disposed in body fluids when implanted, is used to store electrical energy for use in providing electrical energy to at least a portion of the internal electrical circuitry of an implantable device. Substantial capacitance is provided, particularly when constructed of anodized, porous tantalum with a counterelectrode of activated iridium. Such capacitive electrodes, exposed outside the implantable device, alleviate the requirement for space for a storage capacitor within miniature, implantable devices and may also serve as stimulating electrodes.

REFERENCES:
patent: 4440178 (1984-04-01), Bussard et al.
patent: 4934368 (1990-06-01), Lynch
Mindt et al., "Stimulating Electrode with Low Energy Consumption", Med. & Biological Eng., Sep. 1973, vol. 11, No. 5.
Guyton et al., "Theory & Design of Capacitor Electrodes for Chronic Stimulation," Med. & Biolg. Eng. Sep. 1974, vol. 12, pp. 613-619.
Hildebrandt et al., 7th Int. Symp. on External Cntrl. of Human Extremities, "Neuromuscular Funct. Stim. by Miniaturized Impl. Elect. Stim." Dubrovnik, Yug, Sep. 1981.
Robblee et al., "Activated Ir: An Elect. Suitable for Revers, Charge Inject. in Saline Soln," J. Electrochemical Soc., vol. 130, pp. 731-733, 1983.
Rose et al., "Assessment of Cap. Elect. for Intracortical Neural Stim.," J. of Neuroscience Methods, vol. 12, 1985, pp. 181-193.

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