Diseño e Implementación de un sistema invasivo de monitoreo de la presión arterial y la frecuencia cardíaca: microsistema de Energía y Control para el Tensiómetro.

Abstract

Nowadays, vital signs monitoring devices have a personal design focused on watches, cell phones or mini players. These devices allow the interaction between the patient and the specialist directly with the results in real time. In this context, the present work involves the development of an energy microsystem that must be able to energize a blood pressure and heart rate monitoring device. This power system will allow the tensiometer prototype to operate for at least 24 hours. The system operates under a minimum energy consumption, allows the measurement and sending of data in real time. The design is based on a rechargeable lithium polymer battery as the main power source. There is also a battery management system based on integrated circuits that protect, charge and monitor the battery. An AC-DC adapter will convert power from the electrical grid to recharge the battery. A Buck-Boost converter is also integrated that will maintain a fixed voltage to power the control card. A low dropout regulator will allow to obtain an adequate voltage for the peripherals that are part of the tensiometer. A monitoring interface was also created using Arduino IoT Cloud platform to check the operation of the system, where battery power data is observed. The energy microsystem and the monitoring interface were subjected to tests that validated their correct operation