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Evaluation of a new hyperbaric oxygen ventilator during pressure-controlled ventilation
Cong Wang1, Qiuhong Yu1, Yaling Liu1
1Department of Hyperbaric Oxygen, Beijing Tiantan Hospital, Capital Medical University, A zone, No.199 Nansihuan West Road, Fengtai District, Beijing 100070, China.
Diving and Hyperbaric Medicine
|September 17, 2024
Summary
This study evaluated a new hyperbaric ventilator's stability. The Shangrila590 demonstrated stable tidal volumes (VT) in pressure-controlled ventilation (PCV) at high ambient pressures, though peak inspiratory flow (Fpeak) required adjustment.
Area of Science:
- Biomedical Engineering
- Respiratory Physiology
- Hyperbaric Medicine
Background:
- Hyperbaric ventilators require stability assessment at elevated pressures.
- Accurate ventilation delivery is critical in hyperbaric environments.
Purpose of the Study:
- To investigate the stability of the Shangrila590 hyperbaric ventilator.
- To evaluate its performance in pressure-controlled ventilation (PCV) across various ambient pressures.
Main Methods:
- The Shangrila590 ventilator was tested with a test lung in a hyperbaric chamber.
- Ventilator settings included inspiratory pressures (PI) from 1.0 to 3.0 kPa.
- Experiments were conducted at ambient pressures of 101, 203, and 284 kPa.
Main Results:
- Tidal volume (VT) remained relatively stable across tested pressures.
- Peak inspiratory flow (Fpeak) decreased significantly with increasing ambient pressure.
- VT reduction at 284 kPa was minimal (approx. 60 ml).
Conclusions:
- The Shangrila590 offers stable VT in PCV mode up to 284 kPa.
- Clinical adjustments may be needed for Fpeak at higher pressures for precise VT.
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