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US 2010/0244329 A1Published application
Medical Device with Regioselective Structure-Property Distribution
AssigneeAdvanced Cardiovascular Systems, Inc.
InventorsSyed F.A. Hossainy, David C. Gale
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Abstract
A medical device such as a stent having selected regions with different material properties than other regions is disclosed. Selection and modification of the regions may be based on facilitating a desired mechanical behavior and/or therapeutic prophylactic property of the device.
Claims17
A method of manufacturing a stent, comprising:
- selectively heating a selected region of a stent made of a polymer to modify a material property in the selected region of the stent that has a variable strain profile under applied stress,
- wherein the modification accommodates the variable strain profile of the stent by reducing or preventing mechanical instability when the stent is under applied stress, and
- wherein the stent is composed of a scaffolding including a network of interconnecting struts.
Dependencies are inferred from the claim text.