Design of a wearable device for respiratory rate monitoring and detection of anomalous values

The main causes of death in the world are cardiovascular diseases, strokes and respiratory diseases, among which the following stand out: chronic obstructive pulmonary disease and respiratory system infections. Regarding pulmonary function measurement technology, spirometry is the reference standard for the diagnosis and evaluation. This test requires specialized equipment that does not allow it to be performed on an outpatient basis or for constant monitoring. For this reason, the doctor must systematically look for the presence of symptoms that may go unnoticed by the patient and that can be attributed to age, sedentary lifestyle, or the fact of smoking. This is why it would be important to be able to constantly monitor breathing in order to identify irregularities in breathing rates that could be indicative of a respiratory condition.The solution proposed in this article is focused on the design of a prototype of a wearable device that allows the monitoring of the respiratory rate. For this prototype feasibility is analyzed using signals from a database. This device will allow this biometric variable to be identified and will notify when it is outside the normal ranges to suggest an airflow test (spirometry) at a possible early stage of a respiratory condition. This instrumentation system will be integrated into the frame of a pair of glasses, specifically positioning the sensor on the nasal platelets.