Patent ID: 8033988
Filing Date: 2011-10-11
Classification: A61B

Abstract:
1. An endoscope apparatus comprising: an endoscope comprising an insertion portion, wherein an air hole is formed at a distal end of the insertion portion so as to pass through a distal end hard portion of the insertion portion; and a balloon attached to the distal end of the insertion portion, the balloon being expanded by supply of air through an inlet/outlet port of the air hole and contracted by suction of air through of the inlet/outlet port, wherein the inlet/outlet port of the air hole is formed to be inclined at a predetermined angle to an axis of the insertion portion of the endoscope, and is connected to an air tube disposed in the endoscope insertion portion via a piping member, wherein the inlet/outlet port of the air hole is formed into a slot by cutting a thickness section of the distal end hard portion located upward of one-end opening portion of the piping member, wherein the slot of the inlet/outlet port of air hole has wherein the piping member is disposed in the distal end hard portion and is formed by bending at a predetermined radius of curvature ratio so as to smoothly insert a cleansing brush into the piping member.