Fabrication process of flexible cuff electrode based on polyimide substrate

Title
Fabrication process of flexible cuff electrode based on polyimide substrate
Authors
한성민추준욱송강일최귀원박종웅윤인찬
Keywords
fabrication; cuff electrode; nerve signal; Peripheral nerve; Fabrication process
Issue Date
2012-10
Publisher
대한생체역학회
Abstract
This paper presents the fabrication process of flexible cuff electrode for implantable neural prostheses based on Bio-micro-electro-mechanical-system (BioMEMS) technique. The cuff electrode is showed the characteristic of the self-wrap around peripheral nerves. This characteristic has advantage of size-adaptation for the changed peripheral nerve diameters and nerve damage for chronic recording of electroneurogram (ENG) signals is minimized compared to the other implantable neural electrodes. The substrate material of flexible cuff electrode is demanded to good biocompatibility and high insulation. The polyimide (PI) was used as substrate material due to its flexibility and biocompatibility. The titanium (Ti) / platinum (Pt) was deposited on the PI substrates by RF sputtering as conductive materials. The diameter of rat sciatic nerve is about 1~1.5 mm. In other to enhance the contact area between electrode and rat sciatic nerve, a cuff electrode was curled with a diameter of 1mm.
URI
https://pubs.kist.re.kr/handle/201004/43225
Appears in Collections:
KIST Publication > Conference Paper
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