Method of sterilizing polymeric struts and stents
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United States of America Patent
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Jun 21, 2011
Grant Date -
Mar 19, 2009
app pub date -
Mar 13, 2007
filing date -
Mar 14, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
It has been determined that gamma sterilization of biodegradable polymer stents does not cause significant polymer cross-linking and collapse. Using sufficient spacing can lead to stents that display little if any detrimental effects from the procedure. In certain embodiments, using structures in the general region of about 100 micron spacing between the struts leads to highly functional stents that do not fuse. Further, the resulting stent has radially homogenous mechanical properties. Therefore, the stent has a uniform expansion within the lumen.
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International Classification(s)
- H01J:ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- A61F:FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES....
- G01N:INVESTIGATING OR ANALYSING MATERIALS BY DETERMININ....
- A61B:DIAGNOSIS; SURGERY; IDENTIFICATION
- B01J:CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, CO....
- A61N:ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY;....
- B65D:CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR....
- A61L:METHODS OR APPARATUS FOR STERILISING MATERIALS OR ....
- A61M:DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE B....
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