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US 5,282,860 AGranted
Stent tube for medical use
AssigneeOlympus Optical Co., Ltd.
InventorsKiyotaka Matsuno, Katsushi Watanabe
Life of this patent
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Abstract
A stent tube comprises an inner tube and an outer tube with a reinforcing braided member fitted between the inner tube and the outer tube. The inner tube is made of a fluorine-based resin. The stent tube is hard to clog at its inner wall and has a strength enough great for a bending force.
Claims9
A stent tube for medical use which is placeable in a duct of a human being to provide a passage, said stent tube
- an outer tube formed of a resin;
- said outer tube having at least one flap formed thereon, as a raised cut area for providing a firm area of anchoring to an inner wall of a human body cavity;
- an inner tube formed of a fluorine-based resin that has a frictional resistance that inhibits deposition of a foreign matter thereon;
- and
- a mechanically reinforcing member positioned between the inner tube and the outer tube for mechanically protecting the inner tube from damage when the at least one flap is formed on the outer tube.
2 more elements
Dependencies are inferred from the claim text.