Adult ICU ventilators to provide neonatal ventilation: a lung simulator study

Abstract

All ICU ventilators tested were able to at least equal the performance of the Babylog 8000 Plus on all variables evaluated.

Classifying Different Types of Double Triggering Based on Airway Pressure and Flow Deflection in Mechanically Ventilated Patients

“…[9][10][11] It may be difficult to determine the onset of inspiratory effort from airway pressure and flow tracings, so any arbitrary definition of an inspiratory effort from airway flow and pressure tracing is subject to criticism. However, in bedside ventilator simulation of inspiratory efforts, 9 we found an inspiratory-trigger-delay range of 0.07-0.13 s, when both inspiratory effort and ventilator type (PB840, Servo, or Galileo) were taken into consideration.…”

Performance of adjustable pressure‐limiting (APL) valves in two different modern anaesthesia machines

“…The ASL precisely measures inspiratory and expiratory tidal volumes and times, inspiratory pressures and positive end-expiratory pressures (PEEP). The motion of a computer-controlled piston inside the ASL can be modified to alter airway resistance and lung compliance, simulating the interactive performance of respirators in neonatal, infant or adolescent lung models [2][3][4]. The ASL-5000 test lung used for these experiments was calibrated according to the manufacturer's user manual before starting the experiments.…”

ICU mechanical ventilators, technological advances vs. user friendliness: the right picture is worth a thousand numbers

“…Over the last two decades, technological developments have lead to significant improvements of the performances by ICU ventilators [1][2][3][4]. At the same time, the presentation of data and the interface of the ventilator with the clinician have also changed dramatically.…”

“…All parameters were controlled by simple, and in most cases, easily accessible knobs that the clinician simply turned to the desired setting or mode. Today's ICU ventilators are composed primarily of a series of microprocessors controlling a gas delivery platform [1][2][3][4][5]. As a result, the capabilities of today's ICU ventilators are markedly greater than previous generations of ventilators.…”

“…Indeed, almost all of the newest generation of ICU ventilators incorporate a computer screen as the basis of their user interface [5]. Many have layers of menus that the user must navigate in order to make changes in ventilator settings, and many require multiple steps to make a simple change in any ventilator parameter [4,5]. All of this has made the user interface more and more complex for the untrained individual to understand and master.…”