Friday, September 22, 2023 10am to 11am
About this Event
6160 University Dr S, Omaha, NE 68182
The focus of the seminar series is to call for experts related to academia and research in the areas related to biomechanics, variability, motor disorders, physical therapy, and related studies.
An Artificial Skeletal Muscle for Use in Pediatric Rehabilitation Robotics
Presentation Abstract
Many actuator materials and devices are used to power automated assistive devices, however, in orthotics and prosthetics, the requirement for a “natural” look and feel, to make the artificial or assisted limb feel integrated with the body, is limited by current technology. Bulky, heavy, noisy electrical motors or pneumatic actuators are typically used, which substantially reduce user compliance of powered orthotics and their adoption. For greater acceptance of such devices, the desired requirements include: low weight, quiet operation, soft feel, and dimensions approximating those of a natural limb. Additionally, to mimic skeletal muscle such actuator must contract quickly while exerting enough force to create functional motions. We call such an actuator artificial skeletal muscle. Due to variety in soft actuator technology, finding an artificial skeletal muscle for pediatric applications is nontrivial. Therefore, we compared five soft actuator candidates that can be deployed in exoskeleton applications. Two thermally driven actuators, Coiled Nylon Fiber (CNF) and Ethanol-Based Phase Change (EPC); and three electro-active polymer actuators, Plasticized Poly Vinyl Chloride (PVC) gel, Stacked Dielectric Elastomer (DE) and Hydraulically Amplified Self-Healing Electrostatic (HASEL), were chosen for the comparison. The commercially available Stacked DE actuator showed the closest resemblance to skeletal muscle.
About Dr. Behboodi
Dr. Behboodi is a biomechanist, holding BSc and MSc degrees in biomedical engineering, and a Ph.D. in Biomechanics and Movement Science from the University of Delaware (UDel). His academic journey led him to undertake post-doctoral training at the NIH's Functional and Applied Biomechanics section, where he innovated a brain-computer interface (BCI) system, aiming to enhance neurorehabilitation and motor coordination in children with neuromuscular disorders. Notably, his contributions also extend to the commercialization of a robotic ankle exoskeleton powered by artificial skeletal muscles for neurodiverse children during his postdoc at the Venture Development Center at the UDel. Driven by a profound passion for advancing pediatric neurorehabilitation through translational rehabilitation technologies, Dr. Behboodi's expertise encompass biological signal processing, movement analysis, artificial muscles, and neuromuscular electrical stimulation. Recently, he embraced the role of an Assistant Professor within the esteemed Biomechanics Department at UNO to continue his pursuit of enhancing the mobility of neurodiverse children.
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