Selection of muscle and nerve-cuff electrodes for neuroprostheses using customizable musculoskeletal model.

D Blana, JG Hincapie, EK Chadwick, RF Kirsch

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Neuroprosthetic systems based on functional electrical stimulation aim to restore motor function to individuals with paralysis following spinal cord injury. Identifying the optimal electrode set for the neuroprosthesis is complicated because it depends on the characteristics of the individual (such as injury level), the force capacities of the muscles, the movements the system aims to restore, and the hardware limitations (number and type of electrodes available). An electrode-selection method has been developed that uses a customized musculoskeletal model. Candidate electrode sets are created based on desired functional outcomes and the hard ware limitations of the proposed system. Inverse-dynamic simulations are performed to determine the proportion of target movements that can be accomplished with each set; the set that allows the most movements to be performed is chosen as the optimal set. The technique is demonstrated here for a system recently developed by our research group to restore whole-arm movement to individuals with high-level tetraplegia. The optimal set included selective nerve-cuff electrodes for the radial and musculocutaneous nerves; single-channel cuffs for the axillary, suprascapular, upper subscapular, and long-thoracic nerves; and muscle-based electrodes for the remaining channels. The importance of functional goals, hardware limitations, muscle and nerve anatomy, and surgical feasibility are highlighted.
Original languageEnglish
Pages (from-to)395-408
Number of pages13
JournalJournal of Rehabilitation Research and Development
Volume50
Issue number3
DOIs
Publication statusPublished - Jan 2013

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Electrodes
Muscles
Musculocutaneous Nerve
Thoracic Nerves
Radial Nerve
Quadriplegia
Spinal Cord Injuries
Paralysis
Electric Stimulation
Anatomy
Wounds and Injuries
Research

Cite this

Selection of muscle and nerve-cuff electrodes for neuroprostheses using customizable musculoskeletal model. / Blana, D; Hincapie, JG; Chadwick, EK; Kirsch, RF.

In: Journal of Rehabilitation Research and Development, Vol. 50, No. 3, 01.2013, p. 395-408.

Research output: Contribution to journalArticle

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