发明名称 |
RADIOPAQUE BIOABSORBABLE OCCLUDER |
摘要 |
<p>The present invention provides an occluder for a biological defect, such as an atrial septal defect (ASD) or a patent foramen ovale (PFO). The occluder is at least partially formed of a radiopaque, bioabsorbable material. In some embodiments, the occluder is formed from a tube, which is cut to produce struts in each side. Upon the application of force, the struts deform into loops. The radiopaque, bioabsorbable material is a blend of a biocompatible radiopaque material with a bioabsorbable material. In some embodiments, the radiopaque material may have a mass attenuation coefficient greater than about 1.2 cm2/gm and/or a linear attenuation coefficient greater than about 9 cm'1. In some embodiments, the radiopaque material is tungsten. In some embodiments, the bioabsorbable material may have a molecular weight greater than about 300,000. In some embodiments, the bioabsorbable material is a polymer.</p> |
申请公布号 |
WO2007120186(A2) |
申请公布日期 |
2007.10.25 |
申请号 |
WO2006US41255 |
申请日期 |
2006.10.24 |
申请人 |
NMT MEDICAL, INC.;OPOLSKI, STEVEN, W.;KLADAKIS, STEPHEN, M. |
发明人 |
OPOLSKI, STEVEN, W.;KLADAKIS, STEPHEN, M. |
分类号 |
A61B17/08 |
主分类号 |
A61B17/08 |
代理机构 |
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地址 |
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