Q-i2m Module

Forced Oscillations Technique (FOT), the reference method for respiratory  mechanics in children.

  • The Q-i2m module is a forced oscillation technique (FOT) system for the measurement of the mechanical properties of the respiratory system, total respiratory input impedance (Zrs), under tidal breathing conditions.

    FOT employs small-amplitude pressure oscillations superimposed on the normal breathing and, therefore, has the advantage of not requiring the performance of complex respiratory manoeuvres.

    The test is simple and fast and ideal for uncooperative patients or for those unable to perform forced expiratory manoeuvres, such as children or elderly people.

    Q-i2m superimposes a random signal to the patient’s breath and measure the respiratory apparatus response. The acoustic pulses are sent to the mouth at high frequency in casual sequence (Pseudo Random Noise - PRN).

    Q-i2m measures pressure and flow at the subject’s mouth while the imperceptible, low intense and high frequency pressure signal is applied. Elaborating flow and pressure signals, Quark i2m provides respiratory impedance measurement (Zrs) and its two components: resistance (R) and reactance (X).

    Quark i2m
  • Key Features
    Forced Oscillations Technique (FOT).
    FOT has been recognised as a reliable method in the assessment of bronchial hyper-responsiveness in adults and children. Forced oscillation technique has been shown to be as sensitive as spirometry in detecting impairments of lung function.

    Total Respiratory Impedance measurement by Pseudo Random Noise Signal.
    Quark i2m measures total respiratory impedance by Pseudo Random Noise Signal, which consists of employing small amplitude pressure oscillations superimposed on the normal breathing.

    No cooperation required from the patient.
    FOT test with Q-i2m is non-invasive and requires minimal patient cooperation making the test ideal for uncooperative patients or for those unable to perform forced expiratory manoeuvres, such as children or elderly people.

    Quick and easy assessment.
    A simple and fast manoeuvre performed while the patient is breathing normally throughout the measuring device.

    Accurate, reliable and reproducible technique.
    FOT test provides accurate, reliable and reproducible results making it an ideal lung function test for epidemiological and field studies.

    Integration with COSMED PFT lab.
    Q-i2m module is suitable for COSMED Quark PFT, Q-Box and Quark Spiro, allowing thus the operator to manage, with one single PC program, tests of respiratory mechanics, diffusing lung capacity, static and dynamic lung volumes.
  • FOT TESTS
    Total Respiratory System Impedance (Zrs), Resistance (Rrs) & Reactance (Xrs), Ax, Resonant frequency (Fres), frequency dependency, average Rrs and Xrs
    DEVICE COMPATIBILITY
    Quark PFT Yes
    Quark SPIRO Yes
    Q-Box Yes
    FOT TECHNOLOGY
    Signal Type Optimized pseudorandom noise (PRN)
    Signal Frequencies Between 5 and 37 Hz
    Peak Input Pressure < 3cmH2O
    Accuracy 10% or 0.1cmH2O/L/s
    Testing time Up to 30 sec
    HARDWARE
    Dimensions & Weight 140x160x190 mm / 0,8 kg
    Interface ports RS232
    Power Supply Medical grade AC/DC 100-240 VAC, 50-60 Hz, OUT 12Vdc 1.5A
    SOFTWARE
    Software Interface OMNIA
    OS Compatibility Windows 7 SP1 (32 bit, 64 bit), Windows 8.x (32 bit, 64 bit), Windows 10 (32 bit, 64bit), Windows 11 (64bit)
    Available languages Italian, English, Spanish, French, German, Portuguese, Greek, Dutch, Turkish, Russian, Chinese (Traditional & Simplified), Korean, Romanian, Polish, Czech, Norwegian, Hebrew (interpretation only)
    Note: ⚫ Standard ⚪ Option
  • Antiviral and antibacterial respiratory filters

    Antiviral and antibacterial respiratory filters

    An easy way to ensure protection from cross-contamination which keeps both the patient and operator safe without compromising on system performance.

    Two mouthpiece types, oval and round, guarantee the maximum ergonomics and the compatibility with any equipment connector.
    • High viral and bacterial filtration efficiency (99.999%)
    • Low resistance to airflow
    • Suitable for both lung function and exercise testing
    • Minimal deadspace
    • Individually packaged in 50 pieces box

    These filters complies with latest ERS guidelines recommending to use the filters with minimum proven efficiency for high expiratory flow of 600 to 700 L/min.

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