| 摘要 |
An occluding device having variable stiffness for occluding fluid flow through a lumen of a body vessel. The device comprises a wire having a first end and a second end. The wire is formed with a tapered diameter defined by a continuously decreasing diameter from the first end to the second end. The tapered wire is wound into a primary coil having a primary shape. The primary coil may then be wound into a secondary shape or received within a secondary coil which conforms to the primary shape of the primary coil. The tapered diameter provides the device with a continuously decreasing stiffness from a first end to a second end. |
