Ventilators are commonly used in the operating theatre and in the ICU to deliver mechanical ventilation to the lungs. In the operating theatre, ventilation is given to anaesthetized and often pharmacologically paralysed patients with predominantly normal lungs. These ventilators are relatively simple and are designed to deliver varying concentrations of oxygen, air, nitrous oxide and volatile a...

Background: Quality control procedures vary considerably among the providers of equipment for home mechanical ventilation (HMV). Methods: A multicentre quality control survey of HMV was performed at the home of 300 patients included in the HMV programmes of four hospitals in Barcelona. It consisted of three steps: (1) the prescribed ventilation settings, the actual settings in the ventilator co...

This paper presents and compares three volume sensors to be used in mechanical ventilators developed laboratory: sensor based on the Pitot tube, Venturi tube infrared(IR) sensor. The were calibrated tested with a ventilator Pressure-controlled Ventilation (PCV) mode. maximum pressure changed, keeping textitPositive End-Expiratory Pressure (PEEP) respiratory rate fixed. For each value: value mea...

Abstract The worldwide shortage of medical-grade ventilators is a well-known issue, that has become one the central topics during COVID-19 pandemic. Given these machines are expensive and have long lead times, approach to vacate them for patients in critical conditions while with mild moderate symptoms treated stripped-down ventilators. We propose mass-producible solution can create such minimu...

There is a limited choice of paediatric ventilators and most of these are specially designed for neonates and infants and are inadequate for ventilating older children. Most adult ventilators are unsuitable for infants and small children mainly because they are unable to provide the smaller tidal volumes and inspiratory flow rates which are required. Modifications of adult ventilators to make t...

Most pressure-support devices use a single circuit with an exhalation port integrated in the mask. The aim of the current study was to compare the effects of masks having different manufacturer-inserted leaks on ventilator performance. We simulated chronic obstructive pulmonary disease and restrictive disease. Four ventilators (VENTImotion (Weinmann, Hamburg, Germany), VPAP III STA (ResMed, Sai...