The Compact Disposable Unit (CDU) is where the warming ‘magic’ takes place. After connecting CDU to the Blood/IV bag and to the Base Unit (either directly or with an extension cable) and flushing the air out, near freezing blood/IV fluids will get warmed to body temperature in a few seconds, even at very high resuscitation rates.
The fluid path is aluminum-free. It is composed of a 220 cm / 7.2 ft medical grade stainless steel coil and PVC tubing (together, 19 ml priming volume). Temperature sensors are attached along the fluid path. All these components are packaged in an EPP casing, which is not only robust, affordable and light-weight, but it also acts as a great isolation material.
The sensors communicate the blood/IV fluids temperature to the Base Units a few hundred times per second. Based on these readings, the Base Unit continuously assesses whether to increase, decrease, or keep the warming level intact so as to secure 38°C output (±2°C). The CDU can sustain immense pressure; based on a third party testing, the CDU was able to sustain 175 PSI; that is, 25 fold the requirements of the standard! This pressure handling capability along with the comfortable amount of priming volume, real-time sensing, utmost heat transfer efficiency, and sufficient battery capacity, allow the Warrior configurations to outperform other solutions when intense and intermittent bolus flows are applied (e.g. through methods such as hand pump, syringe, or LifeFlow like devices).
There are a few additional benefits related to the CDU’s design, for example:
Finally, the CDU technology has been perfected over many thousands of field utilizations.