Patent ID: 7963990

Claim:
An expandable intraluminal stent comprising: a main body portion having a first end, a second end and a flow passage defined therethrough, the main body portion being sized for intraluminal placement within a body passage and subsequent expansion for implantation, the stent further comprising at least two separate regions longitudinally adjacent each other on the length of the main body portion, a first powdered material which is sintered together to form first pores within a first region, the first region characterized by a first porosity and a first pore size, and a second powdered material which is sintered together to form second pores within a second region, the second region characterized by a second porosity and a second pore size, wherein the first powdered material is chemically different from the second powdered material; wherein the first region does not contain the second powdered material, or the second region does not contain the first powdered material.