Collapse-resistant tubing for medical use
AssigneeFBK International Corporation
InventorJohn Quackenbush
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Abstract
A collapse-resistant catheter adapted for medical usage includes a central tube having a smooth outer wall rather than a corrugated outer wall characteristic of prior art collapse-resistant catheters. The tube includes an integral, spiral-shaped outer tube which provides the collapse-resistant characteristic. The spiral tube also provides an additional lumen. The center tube is adapted to provide for a multilumen structure not possible with corrugated prior art structures. The resulting structure, single or multilumen, can be made sufficiently small for insertion into the human body.
Claims6
A collapse-resistant catheter comprising a central tube, said tube having a second tube integral with its exterior surface, said second tube having a hollow spiral geometry of a configuration open at both ends and providing a collapse-resistant function by its geometry alone, said central and said second tube being coextruded.
Dependencies are inferred from the claim text.