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    • 1. 发明申请
    • Scaffolds with viable tissue
    • 具有活组织的支架
    • US20050177249A1
    • 2005-08-11
    • US10775034
    • 2004-02-09
    • Stephanie KladakisSridevi DhanarajRobert Boock
    • Stephanie KladakisSridevi DhanarajRobert Boock
    • A61L27/00A61F2/00A61L27/36A61L27/48A61L27/56A61L27/58A61F2/02
    • A61L27/48A61L27/56A61L27/58
    • A composite implant is provided for repairing a tissue defect in a patient. In one embodiment, the implant is a porous tissue scaffold having at least one pocket formed therein and adapted to contain a viable tissue. The tissue scaffold can have a variety of configurations, and in one embodiment it includes top and bottom portions that can be at least partially mated to one another, and in an exemplary embodiment that are heated sealed to one another around a perimeter thereof to form an enclosed pocket therebetween. The pocket is preferably sealed with a viable tissue disposed therein. In another embodiment, the tissue scaffold is substantially wedge-shaped and the pocket comprises a hollow interior formed in the tissue scaffold, and/or at least one lumen extending into the tissue scaffold. The tissue scaffold can also optionally include at least one surface feature formed thereof to promote blood vessel formation.
    • 提供复合植入物来修复患者的组织缺损。 在一个实施例中,植入物是多孔组织支架,其具有形成在其中的至少一个口袋并且适于容纳活组织。 组织支架可以具有各种构造,并且在一个实施例中,其包括可以彼此至少部分地配合的顶部和底部部分,并且在示例性实施例中,围绕其周边彼此加热密封以形成 封闭口袋。 口袋优选用设置在其中的活组织密封。 在另一个实施例中,组织支架基本上是楔形的,并且口袋包括形成在组织支架中的中空内部和/或延伸到组织支架中的至少一个腔。 组织支架还可以任选地包括形成于其中的至少一个表面特征以促进血管形成。
    • 6. 发明申请
    • Method for modifying a medical implant surface for promoting tissue growth
    • 修改用于促进组织生长的医用植入物表面的方法
    • US20080091234A1
    • 2008-04-17
    • US11904482
    • 2007-09-26
    • Stephanie Kladakis
    • Stephanie Kladakis
    • A61B17/03B29C59/00
    • A61B17/0057A61B2017/00004A61B2017/00243A61L27/18A61L27/34A61L27/50B29C59/14C08L67/04C08L89/06C08L5/10
    • Disclosed is an occluder for closing an intracardiac defect, such as a patent foramen ovale (PFO), and a method for making the same. The occluder includes a frame and at least one scaffold which are formed from a bioabsorbable polymer, such as poly-4-hydroxybutyrate. The surface of the frame and scaffold are textured to promote cell attachment. Texturing of the surface can be achieved by any number of mechanical or chemical procedures. The device is coated with collagen and heparin which are covalently bound to the surface of the device. The occluder provides improved defect closure compared to other septal occluders known in the art. In particular, the occluder described is specifically designed to improve host cell attachment to and tissue ingrowth over the device when implanted in a patient as compared to the level of host cell attachment and tissue ingrowth achieved with other implantable devices made of bioabsorbable polymers.
    • 公开了用于闭合心内缺损的封堵器,例如卵圆孔卵孔(PFO)及其制造方法。 闭塞器包括由生物可吸收聚合物如聚-4-羟基丁酸酯形成的框架和至少一个支架。 框架和支架的表面被纹理化以促进细胞附着。 表面的纹理可以通过任何数量的机械或化学程序来实现。 该装置涂覆有共价结合到装置表面的胶原和肝素。 与本领域已知的其它间隔闭塞器相比,封堵器提供改善的缺陷闭合。 特别地,所描述的闭塞器特别设计成与植入患者体内的装置相比,与由其他可生物吸收聚合物制成的可植入装置实现的宿主细胞附着和组织向内生长相比,改善宿主细胞与组织向内生长。
    • 10. 发明申请
    • Radiopaque bioabsorbable occluder
    • 不透射线生物吸收性封堵器
    • US20070118176A1
    • 2007-05-24
    • US11585395
    • 2006-10-24
    • Steven OpolskiStephanie Kladakis
    • Steven OpolskiStephanie Kladakis
    • A61B17/08
    • A61B17/0057A61B17/12122A61B17/12172A61B90/39A61B2017/00004A61B2017/00575A61B2017/00592A61B2017/00606A61B2017/00619A61B2017/00623A61B2017/00862A61B2017/1205
    • 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.
    • 本发明提供了一种用于生物缺陷的闭塞器,例如房间隔缺损(ASD)或卵圆孔卵孔(PFO)。 封堵器至少部分地由不透射线的生物可吸收材料形成。 在一些实施例中,封堵器由管子形成,管子被切割以在每一侧产生支柱。 施加力时,支柱变形成环。 不透射线的生物可吸收材料是生物相容性不透射线材料与生物可吸收材料的混合物。 在一些实施例中,不透射线材料可以具有大于约1.2cm 2 / gm的质量衰减系数和/或大于约9cm -1的线性衰减系数。 在一些实施例中,不透射线材料是钨。 在一些实施方案中,生物可吸收材料可具有大于约300,000的分子量。 在一些实施方案中,生物可吸收材料是聚合物。