Patent ID: 8708997
Filing Date: 2014-04-29
Classification: A61M

Abstract:
1. A flexible kink-resistant introducer sheath comprising: an inner tube extending to a distal end; a wire coil wound around said inner tube extending to an end spaced proximally from said inner tube distal end, said wire coil comprising a plurality of uniformly spaced coil turns, each coil turn being free from crossing by another coil turn; a first outer tube disposed around said wire coil and said inner tube to a first outer tube distal end spaced proximally from said wire coil distal end such that a distal end portion of said wire coil extends distally beyond the first outer tube distal end; a radiopaque marker band positioned about the distal end of the coil; at least a second outer tube disposed around said wire coil and said inner tube therewithin extending distally from said first outer tube distal end and covering said distal end portion of said wire coil and extending beyond said distal end of said inner tube; and an atraumatic flexible, kink-resistant distal tip; said first outer tube being of a material having a first durometer of between 50 D and 60 D, and said second outer tube having a second durometer that is softer than said material of said first outer tube and being between 35 D and 45 D; wherein the second outer tube is polymeric and contains about 80% by weight of radiopaque filler particles; wherein the first outer tube is substantially free of radiopaque filler; and wherein the coil extends only partly within the length of the second outer tube.