The Chartis system is a pulmonary diagnostic tool that allows physicians to identify which patients are appropriate for the Zephyr valve procedure.
1 Hopkinson NS et al. (2011) Eur Respir J
|CHR-CO-100||Chartis Pulmonary Assessment System – Console|
|CHR-CA-12.0||Chartis Pulmonary Assessment System – Catheter|
|CHR-CA-12.0-XL||Chartis Pulmonary Assessment System – Catheter XL|
Note: The Chartis System consists of a disposable balloon catheter and console.
Using the Chartis system to accurately assess collateral ventilation (CV) within the targeted treatment area, physicians can identify which patients are appropriate for the Zephyr valve therapy.
Collateral ventilation (CV+)
Expiratory airflow persists over time, indicating the presence of collateral airflow from adjacent lung compartments.
No collateral ventilation (CV-)
Expiratory airflow in the lung compartment is reduced over several breathing cycles, indicating little to no collateral airflow from adjacent lung compartments.
1 Aljuri N, Freitag L. Validation and pilot clinical study of a new bronchoscopic method to measure collateral ventilation prior to endobronchial lung volume reduction. J Appl Physiol. 2009;106:774-783.
2 Fessler HE. Collateral damage assessment for endobronchial lung volume reduction. J Appl Physiol. 2009;106:755-756.