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公开(公告)号:US5921933A
公开(公告)日:1999-07-13
申请号:US135468
申请日:1998-08-17
IPC分类号: A61N1/05 , A61B8/00 , A61B8/08 , A61B19/00 , A61F2/82 , A61F2/84 , A61L29/00 , A61L31/14 , A61M1/00 , A61M25/00 , A61M25/16
CPC分类号: A61L31/18 , A61B8/0833 , A61B8/0841 , A61L31/14 , A61B2090/3925 , A61M25/0108
摘要: A medical device for insertion into human body having an echogenic portion of enhanced visibility in an ultrasound scan. The echogenic portion includes an echogenic material comprising a plastic impregnated with sonically reflective particles, the particles having an average size of less than 500 nanometers and formed of a substance having a specific gravity of 5 or greater. Preferably the particles have an average size of less than 100 nanometers and the sonically reflective particles are 5% to 40% of the echogenic material.
摘要翻译: 一种用于插入人体的医疗装置,其具有在超声波扫描中具有增强的可视性的回声部分。 回声部分包括回声材料,其包括浸渍有声反射颗粒的塑料,该颗粒具有小于500纳米的平均尺寸并由比重为5或更大的物质形成。 优选地,颗粒具有小于100纳米的平均尺寸,并且声反射颗粒是回声材料的5%至40%。
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公开(公告)号:US06372283B1
公开(公告)日:2002-04-16
申请号:US09285953
申请日:1999-04-02
申请人: Hong S. Shim , Mark C. S. Shu , David L. Miller , Edward Di Domenico , Catherine E. Taylor , Kenneth Keeney , Mark T. Stewart , Eileen L. Halverson
发明人: Hong S. Shim , Mark C. S. Shu , David L. Miller , Edward Di Domenico , Catherine E. Taylor , Kenneth Keeney , Mark T. Stewart , Eileen L. Halverson
IPC分类号: B05D306
CPC分类号: A61L33/0088 , A61F2/24 , A61L27/34 , A61L33/0094 , B05D1/62
摘要: The present invention provides a method for modifying a pyrolytic carbon surface to improve adhesion between it and a subsequently added polymer and/or a bio-active compound. In particular, plasma depositing an oxygen-containing, silicon-containing film forming monomer on a pyrolytic carbon surface improves adhesion of a polymer thereto, wherein the modified pyrolytic carbon surface and silicone rubber has a wet adhesion peel force greater than the wet adhesion peel force between an unmodified pyrolytic carbon and silicone rubber as measured by ASTM D 903-49 after 28 days in an aqueous environment, typically, at least 10 times greater.
摘要翻译: 本发明提供了一种改性热解碳表面以改善其与随后加入的聚合物和/或生物活性化合物之间的粘合性的方法。 特别地,在热解碳表面上等离子体沉积含氧的含硅膜形成单体改善了聚合物对其的粘合性,其中改性热解碳表面和硅橡胶具有大于湿粘合剥离力的湿粘合剥离力 在未经改性的热解碳和硅橡胶之间,在水性环境中28天后通过ASTM D 903-49测量,通常为至少10倍以上。
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