A vascular stent having one or more channels in the outer surface. The channel(s) provide increased flexibility, enhanced perfusion, increased chronic positional stability, and convenient dispensing of a medication. Preferably the stent is machined into a mesh-like pattern and the channel(s) are machined...http://www.google.de/patents/US6709451?utm_source=gb-gplus-sharePatent US6709451 - Channeled vascular stent apparatus and method
