Being particularly compact, light and O2 -efficient, FIDO’s innovative rebreathing system utilizing MIROLA’s patented mair technology is superbly suitable for advanced care in the field.
As a result, FIDO achieves unparalleled levels of efficiency, reliability and user-friendliness for a broad spectrum of end-users, ranging from emergency and rescue services to military outfits and diving communities.
MIROLA’s patented mair technology enables the clever FIDO rebreathing system to be particularly compact, light and efficient. FIDO weighs 690 grams, and a complete system with standard components weighs 1.5-2.0 kg depending on the specific choice of components.
For a start, FIDO’s completely mechanical rebreathing design makes it inherently reliable. It also vastly reduces the amount of O2 required, allowing for a significantly smaller and lighter O2 bottle to be used.
By applying this technique, the only O2 added in the breathing process is the amount spent by the treated person’s metabolism, resulting in FIDO delivering a considerably extended action-time in relation to the amount of O2 consumed.
As shown by the animation, the exhaled air from the treated person is fed through a limestone cartridge that filters out and traps the CO2 from the exhaled air. After passing through the limestone cartridge, the exhaled air is then collected in a breathing balloon where it recirculates and is reused for inhaling.
Upon inhaling, the exhaled air in the breathing balloon is fed back through the limestone cartridge, filtering out remaining CO2 in the breathing air. The purified breathing air is then mixed with a comparatively small amount of O2 before the system comes full cycle, providing the treated person with re-oxygenated, CO2-free breathing air.
REBREATHING MADE EASIER
In contrast to the typical circular rebreathing principle used by most rebreathing systems, FIDO uses a linear rebreathing principle. This makes the FIDO device easy to breathe through, further facilitating the breathing process.
EFFICIENT CO2 FILTERING
As the limestone cartridge filters out CO2 in the breathing air twice every breathing cycle, it allows for the cartridge to be made both lighter and more compact. Also, a shorter filter is easier for the treated person to breathe through.
DUAL PURPOSE BALLOON
The breathing balloon has several functions. Apart from collecting and recirculating the exhaled air, a ‘moving’ breathing balloon is also a clear visual sign that the treated person is breathing.
Using MIROLA’s patented mair technology, the basic principle behind the FIDO rebreathing system is remarkably simple.
FIDO consists of the following main components: a valve unit (the FIDO house), an oxygen tube and a limestone cartridge for filtering out CO2. Additional accessories, like the bio filter, the oxygen bottle and the breathing balloon, complete the FIDO rebreathing system.
Key to FIDO’s superior functionality is the patented oxygen/air mix valve (the FIDO house) that incorporates the emergency intake port (EIP).
The EIP is a safety function that is activated should the oxygen supply start to malfunction. In the event of FIDO not being pressurised, a safety valve opens to allow the treated person to keep breathing the surrounding air, thus avoiding CO2 poisoning as well as suffocation by hypoxia.
Upon inhaling, oxygen from the O2 bottle is mixed in the FIDO house with the inhaled air from the treated person to achieve an adequate level of O2 in the breathing air.
The oxygen/air mix valve adjusts the amount of oxygen dispersed in accordance to the volume of breathing air consumed.
Furthermore, the FIDO system is equipped with an ‘oxygen flush’ button for occasions when the oxygen level needs to be raised for medical reasons.
FIDO is an entirely mechanical design, containing neither electronics, nor software or batteries. This makes it inherently robust, reliable and ideal for use in all types of environments and situations.
FIDO is light and compact, making it particularly easy to transport to and around the scene of an incident or accident.
Designed as a closed-circuit rebreathing system, FIDO uses O2 very efficiently. By reusing the treated person’s own breathing air, only a small amount of O2 is needed to achieve an O2 concentration sufficient for medical treatment. The only O2 added in the FIDO rebreathing process is the amount used by the treated person’s own metabolism.
FIDO has a long action-time in relation to the amount of O2 consumed: 0.4 litres of pressurized O2 (200 bar) delivers approx. one hour of treatment.
The efficient use of O2 in the rebreathing process means that the FIDO system only requires a small O2 bottle.
Due to the limited amount of O2 required, the treated person and the staff administering the oxygen are exposed to significantly lower quantities of O2. Being O2-efficient also makes FIDO a perfect fit in environments with limited access to O2.
FIDO offers a high degree of reliability due to its completely mechanical design. This makes the system suitable for use in various environments with limited access to electricity.
The FIDO system is equipped with a built-in on-demand function (Flush button) should higher oxygen concentration levels be necessary for medical reasons.
FIDO heats up the inhalation air, creating humidity and warm air, thus helping to keep the treated person in a normothermic state.
FIDO reuses the moist breathing air, helping the treated person to keep the mucus in the airways hydrated.
The movement of the breathing balloon is a visual sign that the treated person is breathing. This visual confirmation of functionality can help the emergency staff to improve treatment.
