Determining obstructive or central sleep-disordered breathing requires accurate assessment of breathing movements. The QDC-Pro device uses the cRIP method to provide the best estimate of breathing movements from the thorax and abdominal walls.
The QDC-Pro also uses quantitative diagnostic calibration (QDC) to calibrate its RIP signals and is compact, lightweight and easy to use.
Features & Benefits
- Within the SomnoStar™ sleep system, real-time tools are available during acquisition and scoring to aid in identifying apnea, hypopnea and RERA monitoring and identification
- Assesses breathing disturbances more accurately when used in conjunction with the flow measurement (cannula, oro-nasal thermal airflow sensor, PAP mask)
- Acts as the recommended alternative sensor for apnea and hypopnea detection when the primary sensor (cannula) fails
- Easy patient hook up
- Easy visual and numeric (% Vt change) comparison of each breath to the baseline breath
- Using cRIP, technologists can more accurately titrate the patient’s therapy, helping to reduce over-titration and under-titration
- Sleep medicine physicians can use the QDC-Pro for patients older than 2 years of age
Customer Education Resources
Please note that all products, services, or features of products and services may not be available in your local area. Please check with your local Vyaire representative.
The QDC-Pro measures its signals from three built-in sensors and two external sensors. The built-in sensors include a pressure transducer, a three-dimensional acceleration sensor and audio microphone. The external sensors are abdominal and thoracic (RIP) belts. The QDC-Pro device gives out the following signals:
- Abdomen and thorax respiratory effort
- Sum of abdomen and thorax respiratory effort
- Nasal pressure from nasal cannula
- Snore signal from nasal cannula
- Body position
Rather than making decisions based on a sine wave moving across a screen, cRIP technology allows users to view the real-time data as both a Flow Volume Loop graph and a Konno Mead graph.
The Flow Volume Loop graph shows both inspiratory and expiratory tidal breathing for each breath. During the calibration process, you simply choose a baseline "signature" breath. All subsequent breaths will be compared to the signature loop and SomnoStar™ displays them both visually as well as percent deviation of Vt.
Paradoxical breathing is easily represented when the angle of the Konno Mead loop rotates counterclockwise from the signature loop, and is shown both graphically and numerically.
A key to successful therapy is assigning the correct PAP pressures, and cRIP helps accurately titrate patient therapy and helps reduce over-titration and under-titration. QDC-Pro makes this process easier and more clear.
When the patient is awake and you are calibrating the system, you assign one breath to be the baseline (most open), or "signature" breath. As the patient falls asleep and you begin treatment levels, each breath at the new PAP pressure will be compared back to the signature breath. As the patient's airway opens, you both visually and numerically see it as a percent of signature breath. When the airway is at optimal treatment level, both the graphic will be filled-in completely and the %Vt will be near 0.
It is true that the full feature set of the QDC-Pro works best with the SomnoStar™ sleep system, it is also true that other sleep diagnostic devices can utilize the QDC-Pro as well. Please speak with your local area sales consultant to better understand its use with other devices.
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