Flexural bending to approximate cortical forces exerted by electrocorticography (ECoG) arrays.

ABSTRACT: Objective.The force that an electrocorticography (ECoG) array exerts on the brain manifests when it bends to match the curvature of the skull and cerebral cortex. This force can negatively impact both short-term and long-term patient outcomes. Here we provide a mechanical characterization of a novel liquid crystal polymer (LCP) ECoG array prototype to demonstrate that its thinner geometry reduces the force potentially applied to the cortex of the brain.Approach.We built a low-force flexural testing machine to measure ECoG array bending forces, calculate their effective flexural moduli, and approximate the maximum force they could exerted on the human brain.Main results.The LCP ECoG prototype was found to have a maximal force less than 20% that of any commercially avail

SUBMITTER: Witham NS 

PROVIDER: S-EPMC10002477 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature