Unidirectional endobronchial valve for the treatment of pulmonary emphysema

In emphysema of the lung, small alveoli are systematically lost. In those places oxygen absorption is no longer possible, but this also causes the lungs to become stiff. This causes the inhaled air to become trapped in the diseased tissue, causing the affected lung tissue to expand. This expanded tissue compresses the healthy lung tissue, further reducing the surface area for oxygen uptake. In this project medical data and material use are registrated in patients with pulmonary emphysema in whom one-way endobronchial valve is implanted. Registration by the implanting center is mandatory so that it retains its approval and can certify the service.