A portable Medical Device (100) which, in use, in contact with the skin of a user to manage Drug Therapy to the userThe Medical Device (100) comprises: a Housing that is, during its use, in contact with the body of a user.This casing containing: a Microcontroller (104) that sends orders to a Pump mechanism (102) to deliver a drug to a Contact Point on the body of the user and a system ofElectrical limentaci\u00f3n (108) that includes a component of Energy Recovery to recover energy from the users BodyA Storage Unit for storing the recovered Energy recovered Energy,And a Power Distribution Unit that provides selectively stored Energy to the microcontroller (104) and the mechanism of pump (102),The Housing also contains a Transceiver (106) having a First electrode (406)To communicate with a host Monitoring device (200) having a Second electrode (408), and at least one sensor (300) which, in use,In contact with the body of the user by means of a personal Area Network transmitting data along the body of the user By adjusting a Flow of Movement using the body of the USUario as communication MediumIn which the transmitter - receiver (106) is adapted to provide a potential at the first electrode oscillating (406) which produces as a result the displacement current is transfErida to human body.Un dispositivo médico portátil (100) que está, durante su utilización, en contacto con la piel de un usuario para administrar terapia farmacológica al usuario, comprendiendo el dispositivo médico (100): una carcasa que está, durante su utilización, en contacto con el cuerpo de un usuario, conteniendo dicha carcasa: un microcontrolador (104) que envía órdenes a un mecanismo de bomba (102) para suministrar un fármaco en un punto de contacto sobre el cuerpo del usuario y un sistema de alimentación eléctrica (108) que comprende un componente de recuperación de energía para recuperar energía del cuerpo del usuario, una unidad de almacenamiento de energía recuperada para almacenar la energí