Feedback system to control electrode voltages in a cochlear stim

Details Feedback system to control electrode voltages in a cochlear stim Feedback system to control electrode voltages in a cochlear stim

1996-01-17

1997-10-07

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

607 63, A61N 108

Patent

active

056742649

ABSTRACT:
An implanted device such as cochlear implant having electrodes is provided with a pulse generator for generating stimulating pulses. The pulses are adjusted to insure that during the idle periods between the pulses, the voltage on the electrodes is at zero or at a preselected level. In one embodiment, the pulse durations or amplitudes adjusted, In another embodiment the voltage on the electrodes is measured before and during each pulse to determine IR drops from the electrodes to a reference point, and to compensate for the same.

REFERENCES:
patent: 4343312 (1982-08-01), Cals et al.
patent: 4408608 (1983-10-01), Daly et al.
patent: 4858610 (1989-08-01), Callaghan et al.
patent: 4991583 (1991-02-01), Silvian
patent: 5165404 (1992-11-01), Andersson et al.

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