发明授权
- 专利标题： Biodegradable polymer for marking tissue and sealing tracts
- 专利标题（中）： 用于标记组织和密封带的生物可降解聚合物
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申请号： US10063620申请日： 2002-05-03
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公开(公告)号： US07329414B2公开(公告)日： 2008-02-12
- 发明人: John S. Fisher , Frederick Ahari , Lucjan J. J. Hronowski
- 申请人： John S. Fisher , Frederick Ahari , Lucjan J. J. Hronowski
- 申请人地址： US FL Clearwater
- 专利权人： Biopsy Sciences, LLC
- 当前专利权人： Biopsy Sciences, LLC
- 当前专利权人地址： US FL Clearwater
- 代理机构： Smith & Hopen, P.A.
- 代理商 Ronald E. Smith
- 主分类号： A61F2/02
- IPC分类号： A61F2/02 ; A61K51/02
摘要：
A tissue marker formed of a biodegradable polymer having drug-delivery capabilities is combined with a sealant that encapsulates the tissue marker and which serves to help anchor the tissue marker against migration. The sealant is delivered to a site in dehydrated form and moisture inherent in tissue at the site expands the sealant. The expanded sealant is formed of a hydrogel and is therefore more compatible to the surrounding tissue than the material of the tissue marker. The sealant and the tissue marker are both bioabsorbed over time.
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