Patent ID: 8771174

Claim:
An endoscope-equipped puncture balloon, comprising: an endoscope, an inner cylinder including an endoscope-installed section formed on a proximal end of said inner cylinder, an extreme distal end of said endoscope being attached to an inner surface of said endoscope-installed section of said inner cylinder, a slide cylinder, said slide cylinder being fitted on an outer surface of said inner cylinder and movable in the axial direction of the endoscope relative to said inner cylinder and said endoscope, a balloon disposed on an outer surface of said slide cylinder on a distal surface of an extreme distal end of said slide cylinder, a branch tube communicating with the interior of the balloon in a gas-liquid flow manner, and a connector annexed to a proximal end of said branch tube, wherein the balloon is formed such that the balloon does not burst when punctured by a needle, wherein the balloon is formed such that after the balloon is punctured by the needle, a bore of the balloon is maintained until the liquid in the balloon is absorbed and the balloon contracts, wherein the balloon has a wall thickness of 0.01-1 mm, tensile strength of 8-25 MPa, 100% modulus of 3-6 MPa, elongation of 300-460%, and balloon inside pressure of 2.8-75 psi, and wherein said inner cylinder and said slide cylinder compose main body tube having a length of 50 mm or less.