Design of a medical device: the Simeox. This device allows bronchial decluttering, through treatment sessions that are innovative both technically and in terms of use. From a technical point of view, it offers a new method that greatly improves decluttering and expectoration. From a usage point of view, control via a tablet app allows many modes of use: individual at home, shared in hospital, fun (for children but not only)... This project is part of a 360° study: we carried out the design of the device, the complete identity of the company (logo, brochures, instructions, packaging, stand...), the design and development of the App on tablet to control the Simeox, and the PhysioAssist website. Available for sale on the Physio-Assist website.