| 摘要 |
A radially expandable vascular stent of the type formed of wire wound generally in a helix. Bends are provided in the wire outside its helical path which straightens as the stent is expanded. The stent preferably is made of a low memory metal such as copper alloy, titanium, or gold, and provides a radial support from within a blood vessel after implantation therein. The stent is adapted to act as a permanent prosthesis to assure vascular patency. |
