Fig. 2From: Thin bronchoscopic cryobiopsy using a nasobronchial tubeWedged-tube cryobiopsy. a Advancement of the long bronchial tube through the nose to the target bronchus under thin bronchoscopic control. b Wedged bronchial tube. c Cryobiopsy. d Prevention of blood flooding into the central airway by draining with the bronchial tubeBack to article page