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    • 3. 发明申请
    • TISSUE CONTACTING MATERIAL
    • 组织接触材料
    • WO2011017212A1
    • 2011-02-10
    • PCT/US2010/043850
    • 2010-07-30
    • RST IMPLANTED CELL TECHNOLOGY, INC.HARPSTEAD, Stanley, DaleBARBER, Loren, L.
    • HARPSTEAD, Stanley, DaleBARBER, Loren, L.
    • C08L15/00
    • A61K31/00A61F13/0206A61F13/0243
    • A tissue contacting material comprising a plurality of regions comprising an outer region serving as a protective barrier, one or more inner regions, and a tissue contacting region. The plurality of regions each comprise one or more of a plurality of polymers selected from the group consisting of a first polymer comprising a crosslinked hydrophilic polymer and a second crosslinked polymeric matrix, formed of a crosslinkable polymer adapted to incorporate the first polymer without substantially reacting or crosslinking with the first polymer. The first and/or second polymers provide the respective regions with one or more properties including swellability in the presence of water, active agent content, permeability to the diffusion of active agent from or through the layer, moisture vapor permeability, and adhesion to tissue.
    • 一种组织接触材料,其包括多个区域,所述多个区域包括用作保护屏障的外部区域,一个或多个内部区域和组织接触区域。 多个区域各自包含多个聚合物中的一种或多种,​​所述多种聚合物选自包含交联的亲水性聚合物的第一聚合物和第二交联聚合物基质,所述第一聚合物由可交联聚合物形成,所述交联性聚合物适于掺入第一聚合物而基本上不反应或 与第一聚合物交联。 第一和/或第二聚合物为相应区域提供一种或多种性质,包括在水存在下的溶胀性,活性剂含量,活性剂从层中扩散或通过层的渗透性,透湿性和对组织的粘附性。