A novel inline PEEP valve design for differential multi-ventilation.
Am J Emerg Med
; 38(10): 2045-2048, 2020 10.
Article
in English
| MEDLINE | ID: covidwho-639782
ABSTRACT
BACKGROUND:
Ventilator sharing is one option to emergently increase ventilator capacity during a crisis but has been criticized for its inability to adjust for individual patient needs. Newer ventilator sharing designs use valves and restrictors to control pressures for each patient. A key component of these designs is an inline Positive End Expiratory Pressure (PEEP) Valve but these are not readily available. Creating an inline PEEP valve by converting a standard bag-valve-mask PEEP valve is possible with the addition of a 3D printed collar.METHODS:
This was a feasibility study assessing the performance and safety of a method for converting a standard PEEP valve into an inline PEEP valve. A collar was designed and printed that covers the exhaust ports of the valve and returns exhaled gases to the ventilator.RESULTS:
The collar piece was simple to print and easily assembled with the standard PEEP valve. In bench testing it successfully created differential pressures in 2 simulated expiratory limbs without leaking to the atmosphere at pressures greater than 60 cm of H2O.CONCLUSION:
Our novel inline PEEP valve design shows promise as an option for building a safer ventilator sharing system.Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Positive-Pressure Respiration
/
Equipment Design
Limits:
Humans
Language:
English
Journal:
Am J Emerg Med
Year:
2020
Document Type:
Article
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