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Technology Overview

OHSU # 2889 — CRISIS ventilator


Researchers at OHSU have designed a novel ventilator system that 1) can be produced quickly, 2) has minimal operational requirements allowing for use in disaster settings and field facilities, and 3) has the capacity to provide both standard and severe respiratory distress ventilation support.

Technology Overview

The COVID-19 pandemic revealed flaws in the stockpiling and distribution of ventilators, demonstrating a need for more rapidly available and inexpensive alternatives.  In addition, less expensive ventilators that can be utilized with limited resources can be critical tools for disaster response situations and field settings.

The emergency CRISIS ventilator developed at OHSU device by Dr. Albert Chi and colleagues has the following features:

  • Gas-powered with no requirements for electricity.
  • Compatible with either O2 tanks or standard hospital 50psi O2 wall supply.
  • Small in size and less than one pound in weight, allowing for quick portability.
  • Rapidly producible for immediate deployment in crisis areas.
  • Sterilizable by autoclave or chemical immersion for multiple uses.
  • Capable of numerous ventilator settings to treat varying degrees of respiratory failure and size (normal lung, poor functioning lung, pediatric lung).
  • Durable.
  • Validated ability to ventilate and oxygenate in a porcine 24-h proof-of-concept study.


El Haddi SJ, et al., CRISIS Ventilator: Pilot Study of a Three-Dimensional-Printed Gas-Powered Resuscitator in a Porcine Model." ASME. J. Med. Devices. March 2022; 16(1): 014503. Link

El Haddi SJ, et al., CRISIS ventilator: A 3D printed option for ventilator surge in mass respiratory pandemics. Am J Surg. 2022 Jul;224(1 Pt B):569-575. Link

Licensing Opportunity

This technology is available for licensing.




Published United States WO 2021/257472
Published United States US 2023/0226305 A1
Published European Patent Convention EP4168081