Interventional Pulmonology Solution

Patient selection is critical to optimizing patient outcomes. 

The Chartis system helps physicians identify appropriate candidates for the Zephyr valve. Recommended patient selection criteria for the Zephyr valve:

  • FEV1 15-45% Predicted; GOLD stage III or IV Emphysema patient with CT confirming Emphysema diagnosis
  • Residual volume (RV) > 180% of predicted value, measured by body plethysmography
  • Little or no collateral ventilation from adjacent lobe, as measured by the Chartis system
  • Complete fissures, as analyzed by validated software program


Please refer to the Instructions for Use for a complete listing of indications, contraindications, warnings and precautions.