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Grob S, Tass PA, Hauptmann C. Capacitive Feedthroughs for Medical Implants. Front Neurosci. 2016;10:404doi: 10.3389/fnins.2016.00404.
Grob, S., Tass, P. A., & Hauptmann, C. (2016). Capacitive Feedthroughs for Medical Implants. Frontiers in neuroscience, 10404. https://doi.org/10.3389/fnins.2016.00404
Grob, Sven, et al. "Capacitive Feedthroughs for Medical Implants." Frontiers in neuroscience vol. 10 (2016): 404. doi: https://doi.org/10.3389/fnins.2016.00404
Grob S, Tass PA, Hauptmann C. Capacitive Feedthroughs for Medical Implants. Front Neurosci. 2016 Sep 08;10:404. doi: 10.3389/fnins.2016.00404. eCollection 2016. PMID: 27660602; PMCID: PMC5014865.
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Front Neurosci. 2016 Sep 08;10:404. doi: 10.3389/fnins.2016.00404. eCollection 2016.

Capacitive Feedthroughs for Medical Implants.

Frontiers in neuroscience

Sven Grob, Peter A Tass, Christian Hauptmann

Affiliations

  1. Research Center Juelich, Institute of Neuroscience and Medicine 7 - Neuromodulation Juelich, Germany.
  2. Research Center Juelich, Institute of Neuroscience and Medicine 7 - NeuromodulationJuelich, Germany; Department of Neuromodulation, University of CologneCologne, Germany; Department of Neurosurgery, Stanford UniversityStanford, CA, USA.

PMID: 27660602 PMCID: PMC5014865 DOI: 10.3389/fnins.2016.00404

Abstract

Important technological advances in the last decades paved the road to a great success story for electrically stimulating medical implants, including cochlear implants or implants for deep brain stimulation. However, there are still many challenges in reducing side effects and improving functionality and comfort for the patient. Two of the main challenges are the wish for smaller implants on one hand, and the demand for more stimulation channels on the other hand. But these two aims lead to a conflict of interests. This paper presents a novel design for an electrical feedthrough, the so called capacitive feedthrough, which allows both reducing the size, and increasing the number of included channels. Capacitive feedthroughs combine the functionality of a coupling capacitor and an electrical feedthrough within one and the same structure. The paper also discusses the progress and the challenges of the first produced demonstrators. The concept bears a high potential in improving current feedthrough technology, and could be applied on all kinds of electrical medical implants, even if its implementation might be challenging.

Keywords: additive manufacturing; barium titanate; capacitive feedthrough; casing; coupling capacitor; electrical feedthrough; medical implant

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