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Warrior & Warrior AC Warmers VS enFlow™

Warrior ACWarriorenFlow™
Max Delivery Rate at 4°C input [1]290 ml/min200 ml/min [2]<100 ml/min per independent study. See note [3]
Max Delivery Rate at 20°C input [1]500 ml/min290 ml/min<200 ml/min per independent study. See note [3]
Warming SpeedWithin secondsWithin seconds30 - 60 seconds
Warming with Intense Push/Pull Resuscitation Techniques [4]Performance validatedPerformance validatedSee note [5]
Priming Volume19 ml19 ml4 ml [6]
Location of Warming Element vis-a-vis Patient [7]Close to patientClose to patientClose to patient
Set Temperature38°C, with tolerances38°C, with tolerances40°C, with tolerances
The Disposable Unit Can Be Easily Disconnected from One Device and Reconnected to the Next Device [8]Yes, within secondsYes, within secondsN/A
Number of Administration Sets111
Battery OptionYes(N/A; battery operated)No
Aluminum FreeYesYesWarming element contains aluminum [9]
Dry / Wet Warming TechnologyDry warming technologyDry warming technologyDry warming technology
Service RequirementsInspection in 5 yearsInspection in 5 yearsYearly inspection
Disposable Price$60 ($15-30 coming soon) [10]$60 ($15-30 coming soon) [10]$15-30 [11]
Notes:

[1] The term “Max Delivery Rate” means “the maximum flow rate in which target temperature – typically 38°C — will be reached”.

[2] “At an input temperature of 20°C and a flow rate of 50 mL/min, the Warrior warmed over 3.5 L to an average temperature of 37.8°C. Flow rates of 100 and 200 mL/min increased total heated volume with small effect on the output temperature (4.3 and 4.8 L at 37.1°C and 36.1°C, respectively). This behaviour persists at an input temperature of 10°C—warming 2.6, 2.9 and 3.3 L to 36.9°C, 35.9°C and 34.4°C at flow rates of 50, 100 and 200 mL/min, respectively.” (Lehavi A, Yitzhak A, Jarassy R, et al. Emergency Med Journal, doi:10.1136/ emermed-2017-207112).

[3] “At an input temperature of 20°C and a flow rate of 50 mL/min, the enFlow warmed over 2.4 L to above 36°C before depleting the battery, over 2.8 L at 100 mL/min with minimal decrease in output temperature and over 3.3 L at 200 mL/min with average output temperature of 34.2°C. At an input temperature of 10°C and a flow of 50 mL/min, the enFlow warmed over 1.6 L to above 36°C, with an increase in total heated volume and a substantial decrease in output temperature as the flow rate increased to 100 and 200 mL/min (1.8 and 2.3 L, at 33.7°C and 25.7°C, respectively)”. (Lehavi A, Yitzhak A, Jarassy R, et al. Emergency Med Journal, doi:10.1136/ emermed-2017-207112). Note: the study tested the battery version of the product, not the AC version

[4] E.g. hand pump; LifeFlow-like devices, etc.

[5] Based on manufacturer’s published data, and as reflected in the independent study results mentioned above, warming efficiency may not suffice for very intense bolus flows. It is recommended to consult with the manufacturer.

[6] Optional IV extension set: 0.5 ml.

[7] The longer the distance, the more likely that fluids will get colder as they travel towards the patient, especially at low flows.

[8] To facilitate warming during interfacility and intrafacility transports.

[9] Product on global recall due to aluminum toxicity concerns.

[10] Rounded price at high volume. Coming soon – lower-cost option ($15-30)

[11] QinFlow’s estimate based on its market research; the stated prices have not been confirmed by the manufacturer
DISCLAIMERS: The table above compares selected product attributes of enFlow® (a registered trademark of Vyaire™ Medical) with those of the Warrior and Warrior AC configurations (manufactured by Quality In Flow, or QinFlow). Quality in Flow is not affiliated with Vyaire™ Medical. The benchmarking is based on publicly available information and the respective device’s Instructions for Use (IFU) / User Manual, where applicable. The enFlow® IFU / User Manual used for this study may not be the most updated version. Further, the IFUs / User Manuals used for this study may be changed by the manufacturer as the products evolves; QinFlow may not know about such updates and in any event does not undertake to update the information in the table upon such changes. Unless stated differently, the benchmark information was commissioned by QinFlow alone and not all data points were independently verified. Vyaire™ Medical was not part of this benchmark study. Use of the Warrior is subject to QinFlow’s terms of use. This benchmark study does not intend to cover all the differences between the devices. QinFlow does not guarantee that buddy enFlow™ will achieve the results or perform as mentioned in the benchmark study. QinFlow only warrants the information published in its IFUs (performance data points above are in accordance with the CE marks of each Warrior configuration; for FDA-cleared IFU, where applicable, contact QinFlow). Please contact Vyaire™ Medical for clarifications. Found an error?

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