Tourist oximeter

The topic for the winter semester was to design a medical product or device, whose required features will include ergonomics, user comfort, adequate aesthetics and taking into account the specifics of the environment in which the product will be used. My work deals with the design of a pulse oximeter to be attached to a backpack in a mountain / tourist environment at high altitudes. The design is designed so that the user always has the oximeter at hand - on the backpack directly on the waist belt. As soon as he feels weak or nauseous as he exits, he can quickly measure himself by placing his finger on the sensor and making sure that his health is related to a change in the environment.