| 摘要 |
A radially expandable stent for intravascular implantation has a tubular structure defined by an open-ended interior adapted to receive an inflatable portion of a balloon catheter for percutaneous delivery into a patient lumen. The stent is formed from a plurality of malleable wire sections, each section having a series of sinusoidal bends with adjacent wires being welded to one another at the apex of each of said sinusoidal bends. The wire sections are formed circumferentially to define a unitary tubular structure. Preferably, a layer of a fluid impermeable material can be disposed over the wire-mesh frame of the stent, the material being synthetic or biological in nature, prior to implantation.
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