Soft Robotic Deployable Origami Actuators for Neurosurgical Brain Retraction

Front Robot AI. 2022 Jan 14:8:731010. doi: 10.3389/frobt.2021.731010. eCollection 2021.

Abstract

Metallic tools such as graspers, forceps, spatulas, and clamps have been used in proximity to delicate neurological tissue and the risk of damage to this tissue is a primary concern for neurosurgeons. Novel soft robotic technologies have the opportunity to shift the design paradigm for these tools towards safer and more compliant, minimally invasive methods. Here, we present a pneumatically actuated, origami-inspired deployable brain retractor aimed at atraumatic surgical workspace generation inside the cranial cavity. We discuss clinical requirements, design, fabrication, analytical modeling, experimental characterization, and in-vitro validation of the proposed device on a brain model.

Keywords: neurosurgery; origami robots; retraction; soft robotics; surgical robotics.