Stent with rough surface and its manufacture
OwnerAlbert Schomig, Adnan Kastrati +1inventors
InventorsAlbert Schomig, Adnan Kastrati, Randolf von Oepen
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Abstract
A stent is provided wherein at least an outer surface portion is roughened to a predetermined extent and wherein a drug or a therapeutic agent can be applied to said surface. This results in an improved stent, which can be manufactured at low costs and which can further avoid thrombus formation and a stenosis.
Claims19
A method for fabricating a stent for placement in a body lumen, the method comprising the following steps:
- a) forming a tube which can be deployed from a contracted state to an expanded state, the stent having an exterior surface, an interior surface and side surfaces;
- b) roughening at least a portion of the exterior surface to a predetermined extent;
- and
- c) coating said surface with a drug.
A method for fabricating a stent for placement in a body lumen, the method comprising the following steps:
- a) forming a tube which can be deployed from a contracted state to an expanded state, the stent having an exterior surface, an interior surface and side surfaces;
- b) sand blasting at least a portion of the exterior surface to a predetermined extent;
- and
- c) coating said surface with a drug.
A method for fabricating a stent for placement in a body lumen, the method comprising the following steps:
- a) forming a tube which can be deployed from a contracted state to an expanded state, the stent having an exterior surface, an interior surface and side surfaces;
- b) sand blasting an exterior surface, an interior surface, and side surfaces to a predetermined extent;
- and
- c) coating said sand blasted surface with a therapeutic agent without a polymer or another carrier
- d) implanting the stent in a body lumen such that about 50% of the therapeutic agent is released from the stent within 96 hours of implanting the stent in the body lumen.
Dependencies are inferred from the claim text.