Porous coatings for biomedical implants
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United States of America Patent
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Nov 25, 2014
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app pub date -
Jun 28, 2005
filing date -
Jun 28, 2004
priority date (Note) -
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Abstract
A medical implant has a microscopically rough outer coating that serves to bond the implant to animal tissue. The coating is applied to the implant by physical vapor deposition. The coating preferable is applied via a generally oblique coating flux or a low energy coating flux. In some embodiments, the coating has pores. The pores can contain a drug, which can diffuse over a period of time. The coating may be partially nonporous to protect the implant from corrosion. The coating can have an outer porous layer that can bond with animal tissue easily.
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