In Mexico, controlling and monitoring the cold chain in vaccines is one of the biggest problems nowadays. Vaccines are biological products sensitive to variations in light, humidity, time, and mainly temperature. When some of those parameters get lost because of an external situation, consequently, these vaccines lose their functionality, that is why is important a portable device adapted to the design is developed according to the software-hardware prototype, because of this, different variations in those vaccines can be monitored, temperature and humidity for example. According to this, is possible to transfer biological samples and medicines, without forgetting of course to apply the rules in handling the control of the cold chain, guaranteeing the safety of those products. The purpose of this is prevent that the cold chain in medicines and biological samples within health institutions get lost. This make possible to achieve a better control and monitoring applying a versatile system, which is based according to the norms and safety standards.
This project is based on the design and development of a hand orthosis controlled by wireless communication through a mobile application, developed in MIT AppInventor, and a web interface, designed in HTML and CSS; using a NODEMCU ESP8266 V3 development board as a microcontroller in order to obtain the benefit of Wi-Fi communication without ruling out the use of Bluetooth technology. This medical device is focused on the rehabilitation of patients with Rheumatoid Arthritis, or some other pathology that directly affects mobility in the joints of the hands. Similarly, the device has an electromyography module, designed from scratch, in order to monitor the patient's muscle activity and, in the future, achieve control of the orthosis through the possible actions issued by the user or patient. On the other hand, a "Local Network" was implemented with the aim of migrating or embodying the project within a rehabilitation center and having its own communication network, isolated from the outside. Thus, the rehabilitation doctor or physical therapist will be the only person who can control the device when the patient comes to the clinic for therapy or progress review.
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