Sistema integrado de monitoramento de pressões em órteses cranianas pediátricas

Abstract

This work presents the development and experimental validation of a pressure sensing system based on the piezoresistive material Velostat®, designed for integration into cranial orthoses used in the treatment of plagiocephaly and brachycephaly. These deformities, associated with prolonged supine positioning, have become increasingly frequent in recent decades, requiring clinical solutions that ensure greater efficacy and safety. The proposed system incorporates high-sensitivity sensors into the orthopedic helmet, enabling pressure distribution monitoring on the skull with latency below 100 ms. Laboratory tests were conducted to characterize the electrical properties of Velostat®, assessing its linearity, hysteresis, drift, and response time. The results indicated performance compatible with biomedical applications, confirming the feasibility of the material for continuous monitoring and contributing to increased safety in orthopedic treatment. The proposal represents progress toward the personalization and modernization of pediatric devices, with potential application in specialized clinical contexts.