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The pneuPAC hyperbaric variant HB: a ventilator suitable for use within a one-man hyperbaric chamber
M J Spittal1, S J Hunter, L Jones
1Anaesthetic Department, Princess Alexandra Hospital, Wroughton, Swindon, Wiltshire.
British Journal of Anaesthesia
|October 1, 1991
Summary
The pneuPAC hyperbaric variant HB ventilator effectively supports patients in one-person hyperbaric chambers. It provides adjustable minute volumes suitable for various pressures, ensuring patient safety during hyperbaric therapy.
Area of Science:
- Biomedical Engineering
- Respiratory Physiology
- Hyperbaric Medicine
Background:
- Hyperbaric chambers require specialized ventilation systems.
- Ensuring adequate gas exchange is critical in hyperbaric environments.
- The pneuPAC hyperbaric variant HB is designed for single-occupant hyperbaric chambers.
Purpose of the Study:
- To evaluate the performance of the pneuPAC hyperbaric variant HB ventilator.
- To assess its minute volume delivery capabilities at different pressures.
- To determine the ease of external control for ventilation settings.
Main Methods:
- Performance testing of the pneuPAC hyperbaric variant HB ventilator.
- Measurement of delivered minute volumes at 1 atm abs and 2.5 atm abs.
- Assessment of ventilator rate control from outside the chamber.
Main Results:
- Delivered minute volumes ranged from 11-23 L/min at 1 atm abs.
- Delivered minute volumes ranged from 7.6-16 L/min at 2.5 atm abs.
- Ventilator rate (11.5-31 b.p.m.) allowed easy external control of minute volume.
Conclusions:
- The pneuPAC hyperbaric variant HB ventilator performs reliably in hyperbaric conditions.
- The device offers controllable ventilation suitable for one-man hyperbaric chambers.
- External manipulation of the ventilator rate ensures effective management of patient ventilation.