Process for radiation grafting hydrogels onto organic polymeric
substrates
    3.
    发明授权
    Process for radiation grafting hydrogels onto organic polymeric substrates 失效
    将水凝胶辐射接枝到有机聚合物基材上的方法

    公开(公告)号:US3939049A

    公开(公告)日:1976-02-17

    申请号:US459734

    申请日:1974-04-10

    CPC分类号: C08F291/18

    摘要: An improved process for radiation grafting of hydrogels onto organic polymeric substrates is provided comprising the steps of incorporating an effective amount of cupric or ferric ions in an aqueous graft solution consisting of N-vinyl-2 - pyrrolidone or mixture of N-vinyl-2 - pyrrolidone and other monomers, e.g., 2-hydroxyethyl methacrylate, 2-hydroxyethyl acrylate, propylene glycol acrylate, acrylamide, methacrylic acid and methacrylamide, immersing an organic polymeric substrate in the aqueous graft solution and thereafter subjecting the contacted substrate with ionizing radiation.

    摘要翻译: 提供了一种用于将水凝胶辐射接枝到有机聚合物基底上的改进方法,其包括以下步骤:将有效量的铜或铁离子掺入由N-乙烯基-2-吡咯烷酮或N-乙烯基-2-吡咯烷酮的混合物组成的接枝水溶液中, 吡咯烷酮和其它单体,例如甲基丙烯酸2-羟基乙酯,丙烯酸2-羟乙酯,丙二醇丙烯酸酯,丙烯酰胺,甲基丙烯酸和甲基丙烯酰胺,将有机聚合物基材浸入含水接枝溶液中,然后用电离辐射对接触的基材进行处理。

    NOVEL POROUS BIOMATERIALS
    6.
    发明申请
    NOVEL POROUS BIOMATERIALS 有权
    新颖的多孔生物材料

    公开(公告)号:US20110287078A1

    公开(公告)日:2011-11-24

    申请号:US13156966

    申请日:2011-06-09

    IPC分类号: A61K9/00 A61P9/00

    摘要: The invention provides porous biomaterials and methods for forming porous biomaterials. The porous biomaterials of the invention comprise a biocompatible polymer scaffold defining an array of pores, wherein substantially all the pores have a similar diameter, wherein the mean diameter of the pores is between about 20 and about 90 micrometers, wherein substantially all the pores are each connected to at least 4 other pores, and wherein the diameter of substantially all the connections between the pores is between about 15% and about 40% of the mean diameter of the pores. The invention also provides implantable devices comprising a layer of a biomaterial, and methods for promoting angiogenesis in and around an implantable biomaterial.

    摘要翻译: 本发明提供用于形成多孔生物材料的多孔生物材料和方法。 本发明的多孔生物材料包括限定孔阵列的生物相容性聚合物支架,其中基本上所有的孔具有相似的直径,其中孔的平均直径在约20和约90微米之间,其中基本上所有的孔各自 连接到至少4个其它孔,并且其中孔之间的基本上所有连接的直径在孔的平均直径的约15%至约40%之间。 本发明还提供了包括生物材料层的可植入装置,以及用于在可植入生物材料内和周围促进血管生成的方法。

    Novel Porous Biomaterials
    7.
    发明申请
    Novel Porous Biomaterials 有权
    新型多孔生物材料

    公开(公告)号:US20080075752A1

    公开(公告)日:2008-03-27

    申请号:US10595233

    申请日:2004-10-01

    IPC分类号: A61F2/02 A61P41/00

    摘要: The invention provides porous biomaterials and methods for forming porous bioniaterials. The porous bioniaterials of the invention comprise a biocompatible polymer scaffold defining an array of pores, wherein substantially all the pores have a similar diameter, wherein the mean diameter of the pores is between about 20 and about 90 micrometers, wherein substantially all the pores are each connected to at least 4 other pores, and wherein the diameter of substantially all the connections between the pores is between about 15% and about 40% of the mean diameter of the pores. The invention also provides implantable devices comprising a layer of a biomaterial, and methods for promoting angiogenesis in and around an implantable biomaterial.

    摘要翻译: 本发明提供用于形成多孔生物材料的多孔生物材料和方法。 本发明的多孔生物材料包括限定孔阵列的生物相容性聚合物支架,其中基本上所有的孔具有相似的直径,其中孔的平均直径在约20和约90微米之间,其中基本上所有的孔各自 连接到至少4个其它孔,并且其中孔之间的基本上所有连接的直径在孔的平均直径的约15%至约40%之间。 本发明还提供了包括生物材料层的可植入装置,以及用于在可植入生物材料内和周围促进血管生成的方法。

    Surface-modified self-passivating intraocular lenses
    8.
    发明授权
    Surface-modified self-passivating intraocular lenses 失效
    表面改性自钝化人工晶状体

    公开(公告)号:US5171267A

    公开(公告)日:1992-12-15

    申请号:US675600

    申请日:1991-03-25

    IPC分类号: A61F2/16 A61L27/34 B05D7/24

    摘要: The invention relates to intraocular lenses coated with C.sub.12 -C.sub.36 alkyl groups that render the surface of the intraocular lens less prone to causing inflammation after implantation of the intraocular lens. The alkyl groups may be coated on the IOL by a centrifugal casting method, a solution deposition method (e.g., a covalent attachment method), or a plasma deposition method that minimizes fragmentation of the alkyl groups.

    摘要翻译: 本发明涉及涂覆有C12-C36烷基的眼内透镜,其使眼内透镜的表面在植入人工晶状体后不容易引起炎症。 烷基可以通过离心浇铸法,溶液沉积法(例如共价连接法)或使烷基的断裂最小化的等离子体沉积方法涂覆在IOL上。

    Radio frequency plasma deposited polymers that enhance cell growth
    9.
    发明授权
    Radio frequency plasma deposited polymers that enhance cell growth 失效
    射频等离子体沉积聚合物,增强细胞生长

    公开(公告)号:US4919659A

    公开(公告)日:1990-04-24

    申请号:US136457

    申请日:1987-12-21

    摘要: A method for enhancing bio-material capability for use as a supporting surface for cell culture is disclosed. The method requires exposure of the bio-material to a plasma polymerizable polymer gas, which includes oxygen-containing organic molecules. The material surfaces are then subjected to an RF plasma gas discharge in the presence of the gas, causing a deposition on the exposed material surfaces of a conformal overcoating of the polymer on the material. The deposition enhances fibronectin adsorption and hence cell attachment, spreading and cell growth. Preferred polymerizable gases are acetone, methanol, and ethylene oxide.

    摘要翻译: 公开了一种用于增强用作细胞培养的支持表面的生物材料能力的方法。 该方法需要将生物材料暴露于包含含氧有机分子的等离子体聚合性聚合物气体中。 然后在气体存在下对材料表面进行RF等离子体气体放电,从而在材料上的聚合物的共形外涂层的暴露的材料表面上沉积。 沉积增强纤连蛋白吸附,从而增强细胞附着,扩散和细胞生长。 优选的可聚合气体是丙酮,甲醇和环氧乙烷。

    Crosslinked porous biomaterials
    10.
    发明授权
    Crosslinked porous biomaterials 有权
    交联多孔生物材料

    公开(公告)号:US08318193B2

    公开(公告)日:2012-11-27

    申请号:US13156966

    申请日:2011-06-09

    IPC分类号: A61F2/02

    摘要: The invention provides crosslinked porous biomaterials and methods for forming crosslinked porous biomaterials. The crosslinked porous biomaterials of the invention comprise a biocompatible polymer scaffold defining an array of pores, wherein substantially all the pores have a similar diameter, wherein the mean diameter of the pores is between about 20 and about 90 micrometers, wherein substantially all the pores are each connected to at least 4 other pores, and wherein the diameter of substantially all the connections between the pores is between about 15% and about 40% of the mean diameter of the pores. The invention also provides implantable devices comprising a layer of a biomaterial, and methods for promoting angiogenesis in and around an implantable biomaterial.

    摘要翻译: 本发明提供交联的多孔生物材料和形成交联的多孔生物材料的方法。 本发明的交联的多孔生物材料包括限定孔阵列的生物相容性聚合物支架,其中基本上所有的孔具有相似的直径,其中孔的平均直径为约20至约90微米,其中基本上所有的孔为 每个连接到至少4个其它孔,并且其中孔之间的基本上所有连接的直径在孔的平均直径的约15%至约40%之间。 本发明还提供了包括生物材料层的可植入装置,以及用于在可植入生物材料内和周围促进血管生成的方法。