New stimulation strategy to improve the bladder function in paraplegics: chronic experiments in dogs

Schneider, Erich; Abdel-Karim, Aly M.; Elhilali, Mostafa

doi:10.1109/iembs.2001.1020435

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…The neural stimulators are used to mainly stimulate the tissues for treatment of a variety of neural diseases. The cochlear implant, the bladder controller and the cortical stimulators are among the numerous available devices [17,19,21]. However, once the stimulator is implanted and connected to living tissues via metallic electrodes, several dysfunctions can occur and induce damage to these tissues, such as insulation failure, non-hermetic packaging or electrode-tissues interface (ETI) impedance variations.…”

Section: Introductionmentioning

confidence: 99%

Electrode–tissues interface: modeling and experimental validation

et al. 2007

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The electrode-tissues interface (ETI) is one of the key issues in implantable devices such as stimulators and sensors. Once the stimulator is implanted, safety and reliability become more and more critical. In this case, modeling and monitoring of the ETI are required. We propose an empirical model for the ETI and a dedicated integrated circuit to measure its corresponding complex impedance. These measurements in the frequency range of 1 Hz to 100 kHz were achieved in acute dog experiments. The model demonstrates a closer fitting with experimental measurements. In addition, a custom monitoring device based on a stimuli current generator has been completed to evaluate the phase shift and voltage across the electrodes and to transmit wirelessly the values to an external controller. This integrated circuit has been fabricated in a CMOS 0.18 microm process, which consumes 4 mW only during measurements and occupies an area of 1 mm(2).

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Section: Introductionmentioning

confidence: 99%