Patent ID: 6685671
Filing Date: 2004-02-03
Classification: A61M

Abstract:
A balloon catheter for puncturing comprising a balloon and a catheter which is inserted into a puncture area in a body via an orifice, expanded by a fluid to define a lumen and needled, wherein said balloon is so constituted than when it is needled percutaneously by a puncturing needle, it does not rupture immediately and the lumen can be ensured, wherein the balloon has a thickness of 0.01 to 1 mm, a tensile strength of 8 to 25 MPa, a tear strength of 20 to 60 kg/cm, a 100% modulus of 3 to 6 MPa, an elongation of 300 to 460% and a balloon internal pressure of 2.8 to 75 psi.