Patent ID: 6692455
Filing Date: 2004-02-17
Classification: A61F,A61M

Abstract:
A medical ventilation tube for placement in an anatomical structure comprisinga hollow tubular shaft having a distal end for placement in the anatomical structure and a passage formed therethrough, said hollow tubular shaft being made of a first material having a rigidity to resist bending and maintain said passage in an open condition when said distal end is placed in the anatomical structure, said first material being a polymer having a durometer no greater than about 100 on the Shore A hardness scale; and a flange extending outwardly from said distal end of said hollow tubular shaft, said flange being made of a second material having a rigidity sufficiently less than that of said first material to permit said flange to deform in response to contact with the anatomical structure during placement of said distal end in and removal of said distal end from the anatomical structure, said second material being a polymer having a durometer less than said first material but greater than about 20 on the Shore A hardness scale.