Chiara Andaloro
Alternative method to demonstrate the structural integrity of lower limb rehabilitation exoskeleton.
Rel. Cristina Bignardi, Gabriella Eula, Simone Borrelli. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Meccanica (Mechanical Engineering), 2023
Abstract
One of the primary challenges in exoskeleton design is the testing of physical human-exoskeleton interactions (pHEI), an area that has received limited attention in the existing literature. pHEI measurements are defined as any extraction of information related to forces exchanged between a human and an exoskeleton during the execution of a task. Unfortunately, there is currently a lack of standardized methods for measuring these loads, highlighting a clear gap in the definition of protocols and assessment procedures. Compliance with the EN 60601-1 standard, which outlines general requirements for basic safety and essential performance of medical electrical equipment, is often required for the commercialization of such devices in many markets.
As stated in EN 60601-1:2005 Section 9.8.2: "The tensile safety factors must not be lower than those specified in Table 21, unless an alternative method can demonstrate the structural integrity throughout the expected service life of the equipment or if the support is at foot rest." The aim of this thesis is to present the alternative method that has been studied and evaluated by the candidate to demonstrate the integrity of the ABLE Human Motion lower limb rehabilitation exoskeleton and ensure compliance with the existing standard
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