Endoscopic tube

Abstract

An endoscopic tube includes: a body; a catheter connected to the body, having therein one single working channel, having a proximal opening proximal to the body, and having a distal opening distal to the body; and an inflation device enclosing the catheter, having an expansion free end proximal to the distal opening of the catheter and made of an elastic material, having one end proximal to the distal opening of the catheter and being closed, and having one end proximal to proximal opening of the catheter and being in communication with a gas admitting component having a gas admitting opening for admitting an external fluid, and thus the expansion free end expands when a gas is introduced into a space between the inflation device and the catheter through the gas admitting opening. The endoscopic tube is suitable for observing, sampling and/or treating pulmonary lesions.

Dependencies are inferred from the claim text.