Background and Identification

The O-Two CAREvent is a medical ventilator typically used in ATV+ and MRI settings. The ventilator is produced by O-Two Medical Technologies and is intended to assist patients who are having trouble breathing, primarily due to trauma.

  • O-Two Medical Technologies have produced state-of-the-art products since 1971.
  • O-Two Medical exports to over 60 different countries and possesses more than 40 patents.
  • The CAREvent ATV+ and MRI consist of a portable control module, input hose and optional single use (or reusable where available) patient circuit. The control groupings are designed to aid in the selection and setting of the breathing parameters. The groupings are colored on the controls to aid in ease of use.
  • The CAREvent ATV+ and MRi are for use in pre hospitals, intra hospitals, interhopsitals, and air ambulance settings. They are designed to be used by suitably trained personnel. The device offers various modes that support the transportation and resuscitation of a variety of patients who require ventilatory support.
  • The ATV+ and MRI are time-cycled which provides a range of frequencies for ventilation. They also include Minute Volume settings to provide a range of delivered tidal volumes and ventilation rates.

Technical Specifications

  • Dimensions
    • 9.27 x 7.6 x 4.4 Inches
    • 236 x 194 x 122 mm
  • Weight
    • 2.84kg approximately for the ATV+
    • 3.0kg approximately for the MRI
  • Minute Volume Range
    • 2 - 14 L/min
  • Frequency Range
    • 8 - 40 BPM
  • I:E Ratio
    • 1:2
  • Input Pressure
    • 45 - 87 PSI (3 - 6 Bar)
  • Automatic Flow Rate
    • 6 - 42 L/min
  • Manual Flow Rate
    • 6 - 42 L/min
  • Manual Override Delay Time
    • 17 - 23 Seconds
  • Demand Breathing Flow Rate
    • >100 L/min @ -6 cmH2O {hPa}
  • Demand Breathing Triggering Pressure
    • -2 cmH2O max
  • Auto Shut Off Delay Time
    • 5-8 Seconds
  • CPAP/PEEP
    • 0 - 20 cmH2O
  • Oxygen Concentration
    • 60 OR 100%
  • Inspiratory/Expiratory Resistance
    • <6cmH2O (hPa) @ 60 L/min
  • Operating Temperature
    • -18C to + 50C
    • 0F to +122F
  • Storage Temperature
    • +40C to +60C
    • -40F to +140F
  • Gas Supply Status Indicator
    • Provides a visual indication of Gas Supply Status
  • Pressure Relief Range
    • 20 - 60 cmH2O
    • 19.6 TO 58.8 mBar
  • Low Input Pressure Alarm
    • Audible pulsed alarm to indicate input pressure is dropping below the minimum requirement. Cannot be switched off
  • Airway Pressure Alarm
    • Audible alarm to indicate that the selected peak airway pressure has been reached
  • BSI Alarm
    • Audible high frequency pulsed alarm indicating that the patient circuit is disconnected or insufficient ventilation pressure (<10 Cmh2o) has been attained
  • Pressure Gauge Accuracy
    • ± 2% Full Scale
  • Input Connection
    • 9/16” DISS
  • Patient Connection
    • 15/22 mm
  • Patient Valve Dead Space
    • 8 ml
  • Cylinder Duration (Aluminum “D” size cylinder containing 415 litres of oxygen)
    • On 100% Settings
      • 2 Litre Mv
        • 207 Minutes
      • 14 Litre Mv
        • 30 Minutes
    • On 60% Settings
      • 2 Litre Mv
        • 345 Minutes
      • 14 Litre Mv
        • 50 Minutes

Additional Information

CAREven Official Page

CAREvent User Manual

CAREvent Specification Sheet