Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
DEVELOPMENT OF AN AUTOMATIC ACTUATOR AS EMERGENCY AUXILIARY EQUIPMENT FOR MECHANICAL RESPIRATORS USED IN INTENSIVE TREATMENT UNITS (UTIS)
Submission Author:
Vitor Brabo dos Santos , PA
Co-Authors:
Vitor Brabo dos Santos, Lucas Henrique Brito Santos , lucas morais, Jhennifer Freitas, Rodrigo Carvalho, Antonio Roniel Marques de Sousa, Wellington Fonseca, Marcelo de Oliveira e Silva, Sérgio Aruana Elarrat Canto
Presenter: Vitor Brabo dos Santos
doi://10.26678/ABCM.COBEM2021.COB2021-1142
Abstract
This article shows the design of a device to automatize an Artificial Manual Breathing Unit (AMBU) manual respirator. The aim of this compassionate medicine device is to provide an emergency alternative to conventional electric respirators—which are in much shortage—during the present COVID-19 pandemic, especially in isolated locations in the Amazon region, where there is instability in the electricity supply network. To develop the device, the classical method of product design based on concurrent engineering has been employed to development of low-cost auxiliary equipment to be used in Intensive Care Units - ICUs, such as automatically activated breathing equipment, meeting the need for patients with lower severity, to release a mechanical ventilator for more severe cases. On the first phase of this project is proposed the development of a low-cost pneumatic system in order to move and control the actuation force of the manual respirator bulb. Second, supports were designed and developed to couple the drive system created to AMBU. Third, an electronic system composed of an ESP8266, a raspberry pi 4, an LCD monitor and sensors was implemented to monitor the pressure in the AMBU, the oxygenation of the patient, the purity of the air sent to the patient and a responsive web application to display this information was implemented on the equipment monitor and later stored in a database, in order to server as a monitoring system to observe the clinical conditions of patients with alarms to trigger doctors, nurses and physiotherapists in case of abnormalities with patients. In addition, there is the possibility of using an oximeter connected via Bluetooth. Each stage underwent functional tests and improvements; the device has been materialized with readily available materials and market components, mostly of low cost; and the machine has been successfully tested. An emergency auxiliary equipment was built and is continuously evaluated with regard to hygiene standards regulated by National Health Surveillance Agency (ANVISA).
Keywords
Mechanical Respirator, Automatic Actuator of AMBU, covid-19, Intensive Care Units
