Variable surface area stent
AssigneeAdvanced Cardiovascular Systems, Inc.
InventorsSyed Hossainy, Fuh-Wei Tang, Brian P. Cahill
Life of this patent
Estimating the term…
Abstract
A stent of variable surface area as determined by stent struts. The stent can have a variable surface area per unit length which accommodates a therapeutic agent. A patterned distribution of therapeutic agent can be provided throughout the stent. The stent can have an increased level of therapeutic agent near an end of the stent. A decreased level of therapeutic agent can be provided near an end of one embodiment of a stent. Indentations can be provided at the surface of the stent with therapeutic agent disposed therein. The stent can be cut with struts of variable thickness to provide the variable stent surface area.
Claims29
A drug eluting stent, comprising:
- a body having a first end and a second end and a middle segment between said first and second ends;
- a variable stent surface area per unit length of said body, wherein said first and second ends have a lesser surface area than said middle segment;
- and
- a drug deposited on said stent so that said first and second ends have a lesser amount of said drug than said middle segment.
A drug eluting stent, comprising:
- a body having a first end and a second end and a middle segment between said first and second ends;
- a variable stent surface area per unit length of said body, wherein said first and second ends have a greater surface area than said middle segment;
- and
- a drug deposited on said stent so that said first and second ends have a greater amount of said drug than said middle segment.
A drug eluting stent, comprising:
- a stent body having a first end, an opposing second end, and a middle segment positioned between said first and second ends;
- and
- a drug disposed on said stent, wherein the concentration or amount of said drug is higher at said first or second end as compared to said middle segment of said body positioned between said first and second ends.
Dependencies are inferred from the claim text.