Development of a battery-free ultrasonically powered functional electrical stimulator for movement restoration after paralyzing spinal cord injury.

ABSTRACT:

Background

Functional electrical stimulation (FES) is used to restore movements in paretic limbs after severe paralyses resulting from neurological injuries such as spinal cord injury (SCI). Most chronic FES systems utilize an implantable electrical stimulator to deliver a small electric current to the targeted muscle or nerve to stimulate muscle contractions. These implanted stimulators are generally bulky, mainly due to the size of the batteries. Furthermore, these battery-powered stimulators are required to be explanted every few years for battery replacement which may result in surgical failures or infections. Hence, a wireless power transfer technique is desirable to power these implantable stimulators.

Methods

Conventional wireless power transduction faces significant

SUBMITTER: Alam M 

PROVIDER: S-EPMC6408863 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature