Spiromètre Micromedical

Évaluation de la fonction respiratoire.

General Description

A Micromedical portable/desktop spirometer measures pulmonary function by conducting forced exhalation tests (FVC, FEV₁, etc.). Used in pulmonology, occupational medicine, chronic respiratory disease monitoring (asthma, COPD), and pulmonary rehabilitation clinics.

 

Main Technical Characteristics

FeatureDetail
Measured parametersFVC (Forced Vital Capacity), FEV₁ (Forced Expiratory Volume in 1 second), FEV₁/FVC ratio, PEF (Peak Expiratory Flow), FEF25-75, FEF25, FEF50, FEF75, occasionally FEV6, etc.
Flow rangeApproximately 0.2 to 15 L/s depending on model
Volume rangeUp to approx. 8 to 10 L depending on model
Accuracy± 3% for volumes and flows, compliant with international spirometry standards (ATS / ERS)
Resolution~0.01 to 0.05 L for volume; for flow, typical resolution is 0.01 L/s depending on model
Display / User interfaceGraphic screen (monochrome or color), keypad or touch keys, multilingual menus, display of % predicted values, z-scores, maneuver quality prompts
Power / BatteryPortable models have a rechargeable battery; others run on mains or replaceable batteries depending on version
Memory capacitySeveral hundred to a few thousand saved tests, depending on model
ConnectivityUSB ports, optional PC software for transfer, configuration, and printing; sometimes EMR software compatible
Additional featuresPre/post-bronchodilator tests, "Lung Age" evaluation, quality indices for each maneuver (slow start, abrupt exhalation, etc.), visual incentives (useful for children)
Standards & ComplianceCompliant with ATS/ERS standards, country-specific certifications (CE / others), periodic calibration/verification recommended
Dimensions / WeightVaries by model; portable versions are light and easy to carry; desktop versions are bulkier with a built-in or accessory printer

 

Advantages and Limitations

 

Advantages

  • Provides reliable lung capacity measurements, essential for diagnosing or monitoring pulmonary conditions.
  • Multiple built-in indices and predicted values, facilitating immediate result interpretation.
  • Portability in "handheld" models is highly useful for out-patient clinics, home visits, or mobile units.
  • User-friendly interface (screen, keys, quality guidance), ensuring properly executed breathing tests.

 

Limitations

  • Requires good patient cooperation (full forced exhalation, maximal effort) to obtain valid results.
  • Maintenance, cleaning of mouthpieces, use of hygiene filters, and periodic calibration are necessary to ensure accuracy.
  • Cost of accessories (mouthpieces, filters, printer paper, software) depending on the setup.
  • Test environments (temperature, humidity, patient position) can affect results if uncontrolled.

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