PMID: 8947092Nov 1, 1996Paper

A laboratory comparison of four positive pressure ventilators used in the home

The European Respiratory Journal
I E Smith, J M Shneerson

Abstract

Four brands of ventilator used for noninvasive positive pressure ventilation in the home were assessed to determine their performance on a patient simulator. We tested the tidal volume (VT) preset Companion 2801 (Puritan Bennett), minute volume preset Monnal D (Taema), and two pressure preset ventilators, the Nippy (Friday Medical) and the Bilevel Positive Airway Pressure (BiPAP) (Respironics). A patient simulator was employed to investigate the relationships between VT, peak airway pressure (PAP) and mean airway pressure (MAP), the responses to an additional leak in the circuit and patient effort of a variable duration, which was modelled using a negative pressure pump. For equivalent VTs, >300 mL, the Monnal D and Nippy generated a PAP up to 100% greater than the Companion 2801 and BiPAP. When an additional leak was introduced to the circuit, the VT of the Companion 2801 and Monnal D fell by >50%, while the Nippy and the BiPAP responded by increasing flow and maintained VT close to the level achieved with no leak. When the ventilators were triggered by a simulated patient effort of 0.25 s duration with a frequency 33% greater than that of the ventilator, the minute volume increased by 41% for the Companion 2801, by 18% for th...Continue Reading

Citations

Mar 5, 2010·Respirology : Official Journal of the Asian Pacific Society of Respirology·Nicholas S Oscroft, Ian E Smith
Feb 28, 2002·Thorax·UNKNOWN British Thoracic Society Standards of Care Committee
Jan 28, 2005·Respiratory Medicine·Wolfram WindischJohann Christian Virchow
Jun 24, 2017·The European Respiratory Journal·Maria Paola Arellano-MaricWolfram Windisch

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