Patent ID: 6367510
Filing Date: 2002-04-09
Classification: A61M,F16L

Abstract:
A thin-walled, flexible and collapse-resistant plastic tubing having a substantially smooth bore and a helical outer support bead, said tubing comprising:a flexible tubing wall formed of elongate thermoplastic ribbon having opposite side edges, said ribbon being helically wrapped on itself to overlap said opposite side edges a certain amount forming a helical lap joint whereat opposite side edge portions of said ribbon are heat-bonded to one another so that a thin-walled elongate tubular body is formed; a helical support bead upon and heat bonded to said flexible tubular body atop of said helical lap joint, said support bead integrally bounding a helical lumen; and a helical electrical conductor embedded in said tubing atop of said tubular body adjacent to said lap joint and under said helical support bead.