AVI24EX 2-Place Smart O2 Valve with 925L Bottle and Altus Meso and Healthview

The AVI EX is first experimental installed smart oxygen system integrated with avionics, the Healthview, iOS, and the Aithre suite of health technology products, delivering smart pulsed oxygen based on factors such as pressure altitude, respiration rate, oximetry, heart rate, and carbon monoxide. 

SYSTEMS OVERVIEW

The AVI EX features a push button remote on/off button and indicator, a wireless Altus Meso pressure gauge, and a complete kit for portable bottle mounting, including cannula plugs, bottle mounts, plumbing lines, cannula fittings, and the AVI EX control system with in-app and Healthview monitoring and biometric feedback.

MORE PERMANENT SEMI-BUILT-IN SYSTEM

AVI EX is designed as a a more permanent semi-built-in oxygen system. We coined the term semi-built-in to describe the oxygen system because the plumbing is hidden while the bottle is accessible and removable. This is an improvement of the fully-built-in systems because the bottles are easier to fill at small FBOs or to remove when not needed, yet the install is clean, tidy, and professional. However, the AVI EX is otherwise a fully-built-in system because the control box is ship powered and the plumbing lines are routed behind paneling and concealed with panel-mounted cannula plugs. 

TWO OR FOUR OR SIX PLACE

Each place includes an independent smart pulse circuit and a 100% silicone soft cannula to ensure the total comfort of you and your passenger without any stiffness - even maintaining supreme flexibility at low temperatures.

HEALTHVIEW

The Healthview is the first dedicated avionics display for health information, including gauges for blood oxygen, heart rate, respiration rate, flow rate, cabin pressure, cabin temperature, carbon monoxide, oxygen tank pressure, and wing tip temperature/dewpoint spread - and the first dedicated avionics display that controls your oxygen dosage per station based on altitude, carbon monoxide, blood oxygen, and heart rate.  

The Healthview features a 240 x 320 pixel TFT resistive touch LCD display with rich and vibrant graphical gauges, enclosed in an ultra-compact aluminum anodized laser etched case. The Healthview is powered by three parallel low energy processors and a wireless communication module for an exciting low heat, low power, high functionality display, using only 150mA of current at 14V.

Available as either in portrait or landscape orientation, the Healthview will fit in any panel design.  The portrait or landscape orientation must be selected on purchase as a variant and is not changeable in the field. 

The Healthview works as a standalone device for cabin pressure altitude, using an internal barometric pressure sensor. But, the real power lies in the Healthview's ability to dynamically expand to feature any available Aithre device, wirelessly and with OR without use of the popular Aithre Connect iOS app.  The Healthview is compatible with all Aithre devices, including the Shield series of carbon monoxide detectors, the Illyrian oximeter, the Meso oxygen pressure, the AVI oxygen systems, and the Metis wingtip temperature/dewpoint sensor.  Up to six Illyrian oximeters can be linked to the Healthview at any moment.  Many of the connections are wireless, but the Healthview also features serial channels linking directly to the AVI.

Additionally, the Healthview controls the built-in AVI with dedicated serial communication, including pulse dosage based on pressure altitude and blood oxygen saturation levels.  For advanced oxygen users, the Healthview provides an auto mode functionality that automatically turns your oxygen on and off on a station-by-station basis, using parameters of pressure altitude, SPO2, heart rate, and carbon monoxide.    

You'll be proud to feature the elegant aluminum housing on your panel and it won't tax your battery.  Power requirements are 12-18V and only 150 mA (0.15 A). Dimensions are 90mm x 61mm x 21.5mm and weight is just under 6 ounces.  

SMART PULSE

Our smart pulse system is the first ever to base pulsed oxygen on MEMS flow measurements. This technology provides enhanced inhalation detection plus provides real-time flow rate determinations and accurate respiration rate feedback. What makes the system smart is the integration with the Healthview and the optional Aithre Connect iOS/WatchOS app with in-app control of oxygen and dynamic pulse duration based on respiration rate and pressure altitude. Simply plug in your cannula, push the button, and oxygen will begin pulsing. The AVI EX titrates automatically the oxygen delivery amount based on pressure altitude and provides for further user customization and emergency overrides. 

MICRO BURST TECHNOLOGY

The AVI EX delivers each pulse of oxygen as a series of micro bursts with each inhalation. The micro bursts start immediately upon inhalation and extend over the first critical portion of the inhalation cycle. The number and spacing of the microbursts are adjusted in real-time and customized for each inhalation based on respiration length, pressure altitude, and other factors. The benefits of microbursts over a single pulse is that the oxygen is infused over the course of inhalation making the delivery smoother and more efficient.  

PUSH BUTTON

The Aithre AVI EX includes a panel O2 button hardwired to the remote control box to permit turning the oxygen flow on and off. When the O2 button is pushed, the AVI EX comes to life and delivers oxygen. Oxygen can be discontinued at anytime by pushing the O2 button again to the off position. The oxygen can be safely turned off with the AVI EX connected over long periods without substantial leakage.  

RESPIRATION AND FLOW MONITORING

Respiration rate and flow information is updated about every 12 seconds, providing near-real-time snapshots of your breathing rate and the volume of oxygen being delivered. This additional information improves and replaces the physical inline flow meter that has traditionally been part of oxygen systems. And, the AVI EX can detect when a cannula has been disconnected or kinked because of the absence of respiration. The app and the Healthview will alert you of the start and stop of oxygen and, when no respiration is detected on the pilot port, the AVI EX will sound an on-unit buzzer and turn the button light off.  

AUTO MODE SETTINGS

The auto mode settings are options that permit you to define when the oxygen should begin and end. There are four parameters currently: pressure altitude, heart rate, SPO2, and carbon monoxide.  If any of these parameters occur, then the oxygen will turn on. Conversely, if none of the parameters are met then the oxygen is off.

USER SELECTION OF PERCENTAGE OF STANDARD

The Aithre Connect app provides the ability for independent adjustment of the oxygen concentration per user. We have developed an algorithm that is based on the 1 LPM per 10K MSL that is used by the FAA. However, in some cases this amount is not sufficient for a user and more is desired to maintain a high SPO2 percentage. In other cases, this amount is too much and less oxygen concentration may be desired. Within the app, slider bars are provided for each user that can be dragged to higher or lower percentages of standard. You can always increase the percentage of standard, but for safety you cannot decrease the percentage of standard below 100% without also wearing the Aithre Illyrian oximeter for continuous SPO2 readouts to your phone and paired headset.

ALTUS WIRELESS PRESSURE GAUGE

The Aithre Altus Meso wireless tank pressure gauge comes ready to install on your bottle to provide 0-2500 PSI readings to the Healthview and your iOS device in increments of 10PSI to permit monitoring of your oxygen bottle pressure. The provided high pressure t-fitting enables the Meso transducer to be installed along with the analog pressure gauge.

AITHRE ILLYRIAN AND AITHRE SHIELD COMPATIBLE

The AVI EX works in conjunction with the Illyrian continuous flow oximeter and the Shield carbon monoxide detectors. The Healthview and app receive the information and provides a health dashboard with consolidated output of associated parameters for health and oxygen. Additionally, the Healthview and app use the information received from other Aithre devices to optionally control the AVI EX, such as to put the oxygen system into emergency mode to provide enhanced safety.  

12V SHIP POWER

The AVI EX smart valve is a 12V-18V device that uses max peak current of 1A. It is wired directly to fused 12V ship power and includes an onboard fuse with over current and reverse current protection.         

EASY INSTALLATION

The AVI EX is mounted behind paneling or a bulkhead. The oxygen bottle is strapped down in the baggage area using the provided quick release rubber mount. From there, the AVI EX accepts the 6mm plumbing line from the regulator and provides the output flow via the push-to-connect ports. The ports are extended behind paneling using the provided plumbing kit to the respective stations. A panel O2 button indicator is also provided with a wire that extends to the AVI EX. The AVI EX will pass oxygen to the cannulas when the button is pushed and inhalation is detected. 

RS-232 INTEGRATOR OUTPUT

The AVI EX includes a robust RS-232 protocol output that streams oxygen and health data to your compatible avionics. This data includes respiration rates, SPO2 levels, heart rates, carbon monoxide levels, oxygen tank pressure, oxygen flow rates, and other useful information - directly to your EFIS. Currently, only Advanced Flight Systems has developed an Aithre oxygen and health panel that is now included with the latest software release. The protocol is published on our website and available for any avionics company to use freely for accepting and displaying the rich data stream that is part of the AVI EX.  

DISCRETE FAULT OUTPUT

The AVI EX includes a 12V discrete output that is driven low in the event of a pilot line fault for respiration, flow, or lack of oxygen pressure. This discrete output can be wired to your avionics panel to trigger a flag notification directly within your EFIS.

REGULATOR

The Aithre adjustable flow regulator is a unique combined regulator-valve with dual ports, an integrated flow regulator, and built-in fill valve. The regulator includes a standard CGA-540 fill port, but it is one-way and doesn't require removal of any parts to fill. An elegant metal handle shroud provides enhanced protection in the event of impact. There are two output ports on the handle.  The first output port is a quick connect port which connects to the AVI EX and provides always-on full flow oxygen to the AVI EX for pulsed output. The second output port is a backup port directly available to a cannula and usable independent of the AVI EX for adjustable continuous oxygen flow.  

CARBON FIBER COMPOSITE BOTTLE WITH ALUMINUM LINING

The Aithre carbon fiber bottle comes with CE certification to ISO 11119-3 safety standards. It is extremely lightweight and features a high-gloss finish and unique grey color that pops.   

TWO SAFETY BACKUPS

The system includes two backups. The first is a standalone 47L carbon fiber bottle with a fixed flow regulator that outputs approximately 0.5 LPM for 2 hrs. This handheld bottle is designed to supply a simple independent flow of oxygen for pilot use in the event of any system failure or leakage. The second backup is a continuous output that is plumbed from the adjustable regulator independently. A checked quick connect bulkhead plug is provided to enable easy direct access to constant flow oxygen in the event of system failure.  

PRICE INCLUDES

• Altus AVI24EX Smart Valve Controller including 2-Place Smart Pulse
• Healthview
• 925L Carbon Fiber Bottle
• Backup 47L Fixed Flow Bottle
• Adjustable Flow 0-25 LPM Regulator
• Dual Prong Soft Aithre Cannula (x2)
• Rubber Bottle Mount
• Aithre Altus Meso Wireless Pressure Gauge w/ Manual Gauge Backup
• Custom O2 Backlit Panel Button Indicator
• Plumbing and Fittings for 2-place Smart Pulse with Pilot Continuous Flow Backup
• RS-232 Integrator Output and Discrete Fault Outputs for Avionics
• Aithre USB
• iOS Aithre Connect App

AVI24EX SPECIFICATIONS

• 50 PSI Rating
• 12V Ship Power (experimental only)
• 0.5 A Max Current
• Low Energy Wireless Connection to iOS Phone/iPad
• 4.6" x 4.6" x 2.4" Overall
• 2 lbs

BOTTLE SPECIFICATIONS

• Carbon Fiber & Aluminum Composite Construction
• 6.2 inches x 25.5 Inches
• 14 lbs
  
• 925L oxygen volume @ 2000 PSI (6.8 L liquid volume)
• 2000 PSI Working Pressure
• 3000 PSI Maximum Rating
• 15 Year Bottle Service Life (retesting every 5 years)
• Adjustable 0-25 LPM Regulator
• Direct Always-On Output for AVI24EX
• Backup Manually Regulated Output 0-25 LPM
• Pressure Gauge with Altus Meso Wireless Pressure Data

REGULATION NOTICES

• CE Certificate: Bottle certified CE 1282 and inspected/tested to ISO11119-3 international standards
• NOT DOT approved: Carrier shipment in the U.S. requires the bottle to be empty with no pressure and no compressed oxygen
• Personal portable use only - not approved for commercial use
• Not approved for commercial flight: No gas cylinder of any type can be carried or checked on commercial flights
• Not FDA approved for medical: Do not use to treat or prevent a disease or for any medical purpose.  

WARNINGS AND LIMITATIONS

• The AVI is not authorized for operations above 15,000 MSL except as provided in the Aithre High Altitude Addendum.
  • Flight above 15,000 MSL in unpressurized aircraft can be extremely dangerous. Risks include:  Hypoxia, loss of consciousness, altitude sickness, and death.
• Safe use of the AVI system requires compliance with the Aithre Connect iOS app instructions, the Aithre Healthview instructions, the Aithre High Altitude Addendum, and the checklists provided therein.
• Use the Aithre AVI only with Aithre-approved portable oxygen bottles and regulators to ensure correct operation and to prevent damage to the system.

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