Evaluation of Pneumatic Insertion Stability of Utah Slanted Electrode Arrays in Rat Sciatic Nerve
Abstract
The Utah Electrode Array (UEA) and its variants (e.g., the Utah Slanted Electrode Array, or USEA) have been prominent contributors to advances in the field of neural engineering over the past decade. The most common means of inserting UEA and USEA devices into neural tissue is pneumatic insertion performed by an insertion wand and a pneumatic controller. As design changes from the well-established standards occur to better suit specialized surgical applications, it becomes essential to verify that the alterations do not compromise the structural integrity of the device during insertion. This paper characterizes and demonstrates the reliability of specialized USEAs and insertion wands designed for auditory nerve implants following pneumatic insertion into a rat sciatic nerve. The results show that proposed changes in the USEA form factor and pneumatic insertion ergonomics do not compromise implant stability and device structural viability.
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Intra-neural devices such as LIFE, TIME, and USEA balance the trade-off between selectivity and invasiveness.
“The trade-off between selectivity and invasiveness is more balanced with intra-neural devices such as longitudinal intrafascicular electrodes (LIFE), which are implanted parallel to nerves [25], as well as transverse intra-fascicular multi-channel electrodes (TIME) and Utah slanted electrode arrays (USEA), which penetrate nerves at varying depths [26], [27].”
From Active Neural Interface Circuits and Systems for Selective Control of Peripheral Nerves: A Review (2024) · cites this paper as [27]
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References 13 · Cited by 5
- Authors
- Thomas, W. M., Leber, M., Crew, J., & Warren, D. J.
- Affiliations
- University of Utah (US)
- Blackrock Neurotech,Salt Lake City,UT,84108
- Venue
- 2022 44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)
- Publisher
- IEEE
- Published
- 2022-07-11
- Volume
- 2022
- Pages
- 5099-5102
- ISSN
- 2375-7477 (ISSN-L)
- OpenAlex
- W4294975455
- Cited by
- 5
- References
- 13
- Citations by year
- 2025: 1 · 2024: 2 · 2023: 1 · 2022: 1
- FWCI
- 7.10
- Type
- conference paper
- Language
- en
- Open access
- closed
- Locations
- Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
- Life Sciences › Neuroscience › Cognitive Neuroscience › Hearing Loss and Rehabilitation
- Physical Sciences › Engineering › Biomedical Engineering › Analog and Mixed-Signal Circuit Design
- Keywords
- Utah electrode array, sciatic nerve, rat model, neural recording electrodes
- MeSH terms
- Animals, Microelectrodes, Sciatic Nerve, Utah, Reproducibility of Results, Rats
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