What Researchers Did
Researchers tested a Siaretron 1000 Iper™ hyperbaric ventilator after noticing two serious problems with its performance.
What They Found
They found that in volume control ventilation (VCV) mode, changing the oxygen setting caused the ventilator to deliver excessively large breaths. In pressure control ventilation (PCV) mode, the ventilator did not change the oxygen delivered despite setting changes and showed an irregular airflow pattern. Replacing a faulty main board fixed the PCV issue, and changing oxygen settings in small steps (0.1 per breath) resolved the VCV problem.
Canadian Relevance
No direct Canadian connection identified.
Study Limitations
This study is a report of specific malfunctions in one model of hyperbaric ventilator, not a broad investigation into all such devices or their impact on patient outcomes.