Finite-element study of the performance characteristics of an intradural spinal cord stimulator

Nicole M. Grosland, George T. Gillies, Robert Shurig, Kirsten Stoner, Stephanus Viljoen, Brian D. Dalm, Hiroyuki Oya, Douglas C. Fredericks, Katherine Gibson-Corley, Chandan Reddy, Saul Wilson, Matthew A. Howard

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We have used finite-element (FE) modeling to investigate the mechanical compliance, positional stability and contact pressures associated with a novel type of spinal cord stimulator that is placed directly on the pial surface of the spinal cord in order to more selectively activate neural structures for relief of intractable pain. The properties used in the model are those of the actual prototype devices employed in recent in vitro and chronic in vivo tests. The agreement between predictions and experimental observations serves to validate our FE approach, which can now be used to further optimize the device's design and performance.

Original languageEnglish (US)
Article number041012
JournalJournal of Medical Devices, Transactions of the ASME
Issue number4
StatePublished - 2014

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Biomedical Engineering


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