| has gloss | eng: The endobronchial valve is a medical device researched and developed in Russia, used in treatment of tuberculosis and its complications. It is a one-way valve designerd to be installed in a bronchus. It causes hypoventilation of the affected segment of a lung and preserves the drainage function of the blocked bronchus and the tissue-destruction cavity. The valve lets air and sputum and other bronchial secretion go out of the lung during abrupt expiration and coughing, but lets nothing back in during inspiration. |
