METHOD AND DEVICE TO PREDICT AND TREAT PNEUMOTHORAX Russian patent published in 1997 - IPC

FIELD: medicine, diagnostics. SUBSTANCE: diagnostical puncture and microdrainage of pleura cavity should be conducted by using not rigid tube with several lateral openings at its internal end and reverse valve at its external one performed as a body with tense elastic membrane partially fixed from the one side of its edges. Valve enables to evaluate the type of pneumothorax according to sound signal duration. EFFECT: higher efficiency. 2 cl, 1 dwg