Maximizing Oxygen Delivery During Mechanical Ventilation With a Portable Oxygen Concentrator

• DOI: 10.1097/ta.0b013e3181e44b27
• Publication Date: 2010-07-12T10:34:55Z
• Authors: Dario Rodriquez; Thomas C. Blakeman; Warren Dorlac; Jay A. Johannigman; Richard D. Branson
• Keywords: Oxygen delivery

Background: Transportation of the critically ill or injured war fighter requires coordinated care and judicious use resources. Availability oxygen (O2) supplies for mechanically ventilated patient is crucial. Size weight cylinders makes transport difficult presents an increased risk fire. A proposed solution to a portable concentrator (POC) mechanical ventilation. We tested SeQual Eclipse II POC paired with Impact 754 Pulmonetics LTV-1200 ventilators in laboratory evaluated fraction inspired (FIO2) across range minute volumes. Methods: Each ventilator was attached test lung pressure, volume, flow, measured by gas flow analyzer. Ventilators were at tidal volume (VT) 500 mL; inspiratory time 1.0 second; respiratory rates 10, 20, 30 breaths per minute; positive end-expiratory pressure 0 10 cm H2O. The LTV 1200 without expiratory bias flow. modified provide pulse dosing on inspiration 3 volumes (64, 128, 192 mL) continuous 1 L/min L/min. Six combinations settings used each setting evaluation. O2 injected outlet y-piece dose Additionally, into inlet port 1200, reservoir bag, 754. All tests done both using wall source as control. also FIO2 highest while decreasing VT compensate added volume. Results: delivered when circuit dosing, corrected. next (LTV), (Impact). Electrical power consumption less during operation. Summary: Oxygen finite resource, which cumbersome may present fire hazard. relatively high this method delivery viable alternative cylinders. However, patients requiring would require additional compressed oxygen. This system allows up 76% solely electricity. An integrated capable automatically compensating output desirable. Further testing needs be validate these findings.