Valves & Adapters

The use of newly developed and non traditionally produced valves and adapters increases the availability and versatility of airway support options. A shortage of airway support devices has caused some hospitals to use them in non-traditional ways, such as the controversial ventilator splitters, requiring types of valves and adapters that did not previously exist [1].

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Requirements and Resources
Engineering Requirements
Must comply with standard, performance, safety, and sanitation requirements expected of commercial valves and adapters.
Additional Requirements
  • Facility Requirements:
    • All assembly surfaces must be cleaned and free of dust or oil.
    • Packaging facilities and surfaces must be well ventilated, single purpose, and sanitized immediately prior to packaging.
  • Pre/Post-Manufacturing:
    • All contact surfaces must be free of sharp edges and puncture hazards.
  • Shipping/Packaging:
    • Must wear gloves & PPE or disinfect during packaging for shipping.
  • Disclaimers/Labeling:
    • Labels must specify intended use: reusable/disposable.
    • Labels must specify recommended cleaning procedures.
    • Labels must include materials used (latex, PLA, PETG).
    • Must include directions for assembly if shipped unassembled.
Other Resources

Ventilators and Ventilator Accessories EUAs US-FDA List of specific ventilators, ventilator tubing connectors, and ventilator accessories given approval under the EUA.  Includes fact sheets, safety criteria, and labeling requirements.

Projects

Ebin CPAP Adapter

Physician designed modification for a CPAP or BiPAP mask. This 3DP adapter permits a viral filter connection which limits COVID-19 aerosolization. View the testing documentation for expiratory pressure data.

Prusa Printer Silvana Decathlon Mask Adapters

Injection-moulded Silvana adapter for Decathlon face masks (with white connector). This allows to provide oxygen supply to patients in CPAP applications (or filtered air for healthcare workers in PAPR applications) using the Decathlon scuba mask, filtering the exhaust gases.

3D printed Prusa Printer Silvana Decathlon Mask Adapters

Multiple size 3DP configurations for tri-port and bi-port Decathlon mask adapters for medical respiratory applications.

Three Port Oxygen 22mm Adapter

Originally designed for use with a NIV (Non-Invasive Helmet) oxygenation system, this adapter attaches three standard 7mm oxygen tubes to a single 22mm inlet port. Could potentially be used as a splitter to deliver oxygen to multiple patients.

Helmet Ventilation Fitting and Interface

Features a self-sealing 22mm fitting and male OD interface which allows oxygenation accessory attachment to a helmet ventilation system.
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