Návrh a realizace hrudního pásu metodou „print-in-place“ s využitím vodivého filamentu

Abstract

This bachelor thesis focuses on the design and realization of an innovative chest belt for respiratory monitoring, manufactured using multi-material 3D printing. The primary contribution of the work is the application of the "Print-in-place" technique, which enables the simultaneous printing of both the sensor and fastening components in a single manufacturing process by combining conductive and non-conductive thermoplastic polyurethane. The practical part describes the structural design of the sensor’s spring geometry, its subsequent optimization, and the implementation of an electronic circuit for signal preprocessing. The prototype’s functionality was verified on a lung simulator across various physiological and pathological breathing patterns. The results demonstrate a high degree of correlation with the commercial standard and a signal amplitude approximately twenty times higher than that of the reference device.