Flexible, kink-resistant, introducer sheath and method of manufacture

A flexible, kink-resistant, introducer sheath, comprising:

• an inner tube having a smooth inner surface, a rough outer surface, and a uniform diameter passageway extending longitudinally therethrough;
• a flat wire coil having a plurality of turns positioned longitudinally and compression fitted around said inner tube, said turns having a predetermined spacing therebetween;
• and
• an outer tube positioned longitudinally and heat shrunk between the spaces of said coil and around said coil and around said inner tube and mechanically connected to said rough outer surface of said inner tube.

A percutaneous introducer sheath, comprising:

• a lubricous material tube having a smooth inner surface defining a uniform passageway extending longitudinally therethrough, and an etched outer surface;
• a flat wire coil having a plurality of turns positioned longitudinally and compression fitted around said lubricous material tube and proximally from an end of said lubricous material tube, said turns having a predetermined spacing therebetween;
• a heat deformable polyamide material tube heat shrunk between the spaces of said coil and mechanically connected with said etched outer surface of said lubricous material tube through the spaces between said turns and having a smooth outer surface and tip material bonded thereto to form a tapered distal end extending distally beyond said end of said lubricous material tube;
• and
• an fluorinated ethylene propylene material tube heat shrunk around said heat deformable tube.

A flexible, kink-resistant, introducer sheath, comprising:

• an inner tube having a passageway extending longitudinally therethrough;
• a coil having a plurality of turns wound and compression fitted around and applying a compressive force to said inner tube, said turns having a plurality of spaces therebetween;
• and
• an outer tube positioned longitudinally around said coil and said inner tube and connected to said inner tube through said spaces between said turns.