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Warrior AC & Warrior lite AC Warmers VS Ranger®

Warrior ACWarrior lite ACRanger®
Max Delivery Rate at 4°C input [1]290 ml/min (200 ml/min with battery [2])180 ml/min (same delivery rates with Extra Power battery)- Pediatric: 100 ml/min
- Standard: 150 ml/min
- High Flow: TBD (contact manufacturer)
Max Delivery Rate at 20°C input [1]500 ml/min (290 ml/min with battery)270 ml/min (same delivery rates with Extra Power battery)- Pediatric: TBD (contact manufacturer)
- Standard: TBD (contact manufacturer)
- High Flow: 500 ml/min
Warming SpeedWithin secondsWithin seconds2 minutes
Warming with Rapid Push/Pull Resuscitation Techniques [3]Performance validatedPerformance validatedSee note [4]
Priming Volume19 ml19 ml- Pediatric: 20 ml
- Standard: 39-44 ml
- High Flow: 150 ml
Location of Warming Element vis-a-vis Patient [5]Close to patientClose to patientRemote from patient [6]
Set Temperature38°C, with tolerances38°C, with tolerances41°C, with tolerances [6]
The Disposable Unit Can Be Easily Disconnected from One Device and Reconnected to the Next Device [7]Yes, within secondsYes, within secondsN/A
Number of Administration Sets113
Battery OptionYesYesNo
Aluminum FreeYesYesYes
Dry / Wet Warming TechnologyDry warming technologyDry warming technologyDry warming technology
Service RequirementsInspection in 5 yearsInspection in 5 yearsTwice a year
Disposable Price$60 (~$20 coming soon) [8]$60 (~$20 coming soon) [8]$15-64 [9]
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] E.g. hand pump; LifeFlow-like devices, etc.

[4] The cassette’s resiliency to sustain the extreme pressure that is often generated by intense push-pull resuscitation techniques need to be validated. It is recommended to consult with the manufacturer.

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

[6] Most probably 41°C output intended to compensate for long distance from the warming element to the patient.

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

[8] Rounded Tier 4 volume price. Lower-cost option coming soon, regulatory permitting (est. $20 at Tier 4 volume)

[9] QinFlow’s estimate based on its market research; the highest price is for the high-flow set; the stated prices have not been confirmed by the manufacturer
DISCLAIMERS: The table above compares selected product attributes of Ranger™ (a registered trademark of 3M™) with those of the Warrior and Warrior AC configurations (manufactured by Quality In Flow, or QinFlow). Quality in Flow is not affiliated with 3M™. The benchmarking is based on publicly available information and the respective device’s Instructions for Use (IFU) / User Manual, where applicable. The Ranger™ 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. 3M™ 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 Ranger™ 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 3M™ for clarifications.

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