Method for etching a micropatterned microdepot prosthesis
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United States of America Patent
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May 6, 2003
Grant Date -
N/A
app pub date -
Oct 26, 2000
filing date -
Oct 26, 2000
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Abstract
An implantable prosthesis, for example a stent, is provided having one or more micropatterned microdepots formed in the stent. Depots are formed in the prosthesis via chemical etching and laser fabrication methods, including combinations thereof. They are formed at preselected locations on the body of the prosthesis and have a preselected depth, size, and shape. The depots can have various shapes including a cylindrical, a conical or an inverted-conical shape. Substances such as therapeutic substances, polymeric materials, polymeric materials containing therapeutic substances, radioactive isotopes, and radiopaque materials can be deposited into the depots.
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