Structured sleeve for repair of implantable in-line connectors

Strojnik, P.; Stage, Tom; Bhadra, Niloy; Kilgore, Kevin L.

doi:10.1007/bf02345019

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…This setup has been proven to show leakage currents below 0.01 µA for a 30 V bias in saline solution [147]. Disconnecting is possible, but as the reassembly involves gluing of a repair sleeve, the design is limited to only one revision also [146].…”

Section: Insulation Performancementioning

confidence: 99%

Electrical connectors for neural implants: design, state of the art and future challenges of an underestimated component

Koch

Schüettler²,

Pasluosta

et al. 2019

J. Neural Eng.

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Technological advances in electrically active implantable devices have increased the complexity of hardware design. In particular, the increasing number of stimulation and recording channels requires innovative approaches for connectors that interface electrodes with the implant circuitry. Objective. This work aims to provide a common theoretical ground for implantable connector development with a focus on neural applications. Approach. Aspects and experiences from several disciplines are compiled from an engineering perspective to discuss the state of the art of connector solutions. Whenever available, we also present general design guidelines. Main results. Degradation mechanisms, material stability and design rules in terms of biocompatibility and biostability are introduced. Considering contact physics, we address the design and characterization of the contact zone and review contaminants, wear and contact degradation. For high-channel counts and body-like environments, insulation can be even more crucial than the electrical connection itself. Therefore, we also introduce the requirements for electrical insulation to prevent signal loss and distortion and discuss its impact on the practical implementation. Significance. A final review is dedicated to the state of the art connector concepts, their mechanical setup, electrical performance and the interface to other implant components. We conclude with an outlook for possible approaches for the future generations of implants.

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Section: Insulation Performancementioning

confidence: 99%

Electrical connectors for neural implants: design, state of the art and future challenges of an underestimated component

Koch

Schüettler²,

Pasluosta

et al. 2019

J. Neural Eng.

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“…long-term implantability, reusability and a high channel count. Pin and socket designs as the Craggs connector [7] and the in-line connector [1] perform well in implants for bladder control [8], anterior root stimulation [9] and other neuroprostheses [10]. However, upscaled to high channel counts this concept would take up too much volume.…”

Section: Introductionmentioning

confidence: 98%

“…However, upscaled to high channel counts this concept would take up too much volume. Furthermore, both systems can only be reused once [9,10]. Current pacemakers and neuromodulators use annular contact pads on the male connector part arranged in-line with the cable.…”

Section: Introductionmentioning

confidence: 99%

Development of a multichannel implantable connector

Koch

Ordonez

Schüettler³

2015

2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

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Further development of active implantable medical devices (AIMDs) coming along with higher channel counts and improved maintainability raises the requirements for implantable connectors in such systems. We developed a concept for an implantable multichannel connector. Contact pads manufactured by laser-structuring that are embedded into a silicone substrate serve as contact partners. Processing features specific to two laser technologies were exploited not only to cut the materials but also to 3D-shape the surfaces of the contact pads. First tests for the long-term behavior show stable contact and isolation properties during 6 weeks of soaking at elevated temperature.

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