| 摘要 |
A medical device for treatment of a stenosed body lumen includes an open-ended cylindrical body movable between a collapsed position and a radially expanded position pressed against the wall of the lumen is carried on a distal end of a catheter for insertion of the device into the lumen and placement at the stenosed site. In one embodiment the body sidewall is an open lattice-like structure, and a cover is attached to its outer surface. In another embodiment, concentric laminated tubes of dissimilar materials, such as, e.g., copper and silver, form the body. In a further embodiment stacked rings of different materials form the body. In a still further embodiment the device is temporarily placed in a body lumen for treatment of a stenosed site, after which the device is withdrawn. In all forms the body may have an outwardly flared inlet end to reduce turbulence. |
