Title | ||
---|---|---|
Microneedle Penetrating Array With Axon-Sized Dimensions For Cuff-Less Peripheral Nerve Interfacing |
Abstract | ||
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Autonomic nerves are typically only hundreds of microns in diameter near their organ targets and these carry all of the sympathetic and parasympathetic control signals. We present a cuff-less microneedle array specifically designed to potentially map small autonomic nerves. The focus of this paper is the design and fabrication of an ultra-miniaturized silicon needle array on a silicone substrate. We demonstrate arrays having 25 to 100 microneedles. Each needle has a 1-micron tip and dual-taper shaft. We demonstrate an ability to control the tip shape, angle, and shaft angle which is important for balancing sharpness and stiffness. These high-density arrays also include a special backside anchor embedded in silicone for stability in the elastic substrate, yet the array freely wraps over a 300-mu m nerve. Another critical method presented here is a surgical technique for inserting and securing an array without a cuff (as small as 0.3 mm wide and 1.2 mm long) by photochemical bonding of collagen/Rose Bengal adhesive agents to epineurium. Future work will focus on device functionalization and histological characterization in a rat vagus model. |
Year | DOI | Venue |
---|---|---|
2019 | 10.1109/ner.2019.8717097 | 2019 9TH INTERNATIONAL IEEE/EMBS CONFERENCE ON NEURAL ENGINEERING (NER) |
Field | DocType | ISSN |
Biomedical engineering,Computer vision,Peripheral,Computer science,Cuff,Epineurium,Silicone,Interfacing,Axon,Artificial intelligence | Conference | 1948-3546 |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
13 |
Name | Order | Citations | PageRank |
---|---|---|---|
Dongxiao Yan | 1 | 0 | 0.34 |
Ahmad A. Jiman | 2 | 0 | 0.68 |
David C. Ratze | 3 | 0 | 0.68 |
Shuo Huang | 4 | 0 | 0.34 |
Saman Parizi | 5 | 0 | 0.34 |
Elissa Welle | 6 | 0 | 0.34 |
Zhonghua Ouyang | 7 | 0 | 0.34 |
Paras R. Patel | 8 | 0 | 1.35 |
Mark J. Kushner | 9 | 0 | 0.68 |
Cynthia A. Chestek | 10 | 3 | 3.65 |
Tim M. Bruns | 11 | 0 | 1.01 |
Euisik Yoon | 12 | 109 | 16.58 |
John P Seymour | 13 | 0 | 1.69 |