How does it work?
The idea behind PureFlow technology
Ultrasonic sensor technology is based on a process called time-of-flight measurement. By measuring the transit time between two ultrasonic transducers in both directions, the rate of flow can be calculated.
The raw signals are processed by our proprietary digital circuitry, which compensates for environmental conditions and applies digital signal processing. We then further process the signal by applying smart filtering algorithms in order to cancel out incidental noise.
The resulting high quality, high fidelity flow graph is then used to precisely calculate all relevant spirometry indicator values.
Pureflow technology spirometry software offers sophisticated diagnostic decision support tools to help professional and home-care users achieve better quality and more accurate measurements.
Why is it better?
Benefits of PureFlow technology
Pureflow technology uses ultrasound to measure the rate of flow in a continuous, uninterrupted flow path. Unlike turbine spirometers, ultrasonic spirometry allows for a low resistance, watertight flow tube without obstructions.
Making use of Uscom’s proprietary compensation and signal processing algorithms, SpiroSonic spirometers sample the rate of flow 100 times every second, generating a smooth, highly detailed dataset. The continuous flow-time, volume-time, and flow-volume curves can be analyzed to reveal the more subtle pulmonary anomalies, while the calculated spirometry indicators give a quick insight into the patient’s pulmonary condition. Factory-calibrated, SpiroSonic devices don’t require daily calibration.
The watertight, unobstructed flow tube allows for easy disinfection: cap one end, pour the disinfectant liquid, let sit, pour out, let dry – it’s as simple as it gets. No disposable flow tubes means less cost and less waste, making SpiroSonic devices environmentally friendly.
100 Hz temporal resolution allows for precise and accurate flow measurement
Advanced signal processing
PureFlow technology compensates environmental conditions, exhaled air temperature & ultrasonic wave reflections.
Low flow resistance
Accurate monitoring for children, elderly and patients with lung problems
Disinfectable flow path
The unobstructed, internally sealed tube design allows for more effective cleaning and disinfection.
No daily calibration
Automatic internal calibration before each measurement.
SpiroSonic’ robust construction and no moving parts provide long-term reliability.
Discover our devices with PureFlow technology
Easy-to-use USB spirometer