Intraocular lens implant
    8.
    发明申请
    Intraocular lens implant 审中-公开
    人工晶状体植入物

    公开(公告)号:US20070233240A1

    公开(公告)日:2007-10-04

    申请号:US11725190

    申请日:2007-03-16

    IPC分类号: A61F2/16

    摘要: The present invention provides a hydrogel-based intraocular lens (IOL) implant that can covalently attach to a lens capsule on implantation into an eye. The inventive IOL has a high refractive index, high elasticity, and is of a similar size to a naturally occurring lens. In addition, the IOL can be implanted in a smaller, dehydrated state, allowing the IOL to be placed in the lens capsule with a small incision (up to about 1/10 the volume of the IOL). Exposure to fluid can then initiate rapid swelling of the dried polymer to the shape and dimensions of a natural lens, with full occupation of the lens capsule. Upon equilibrium swelling, the IOL can then make contact with the inner aspect of the lens capsule and covalently bind to it. By this attachment process, the IOL may accommodate in a manner identical to that of the natural lens.

    摘要翻译: 本发明提供一种水凝胶型眼内透镜(IOL)植入物,其可以植入眼睛中共价连接到晶状体囊。 本发明的IOL具有高折射率,高弹性,并且具有与天然存在的透镜相似的尺寸。 此外,IOL可以植入较小的脱水状态,允许IOL以小切口(高达IOL体积的约1/10)放置在晶状体囊中。 然后暴露于流体可以引发干燥的聚合物快速膨胀到天然晶状体的形状和尺寸,完全占据晶状体囊。 在平衡肿胀时,IOL然后可以与镜片胶囊的内部部分接触并共价结合。 通过该附接过程,IOL可以以与天然镜片相同的方式容纳。

    Interpenetrating polymer network hydrogel contact lenses
    9.
    发明申请
    Interpenetrating polymer network hydrogel contact lenses 有权
    互穿聚合物网络水凝胶隐形眼镜

    公开(公告)号:US20070126982A1

    公开(公告)日:2007-06-07

    申请号:US11636114

    申请日:2006-12-07

    IPC分类号: G02C7/04

    CPC分类号: G02B1/043 C08L51/08

    摘要: The present invention provides interpenetrating polymer network hydrogels that have high oxygen permeability, strength, water content, and resistance to protein adsorption. The hydrogels include two interpenetrating polymer networks. The first polymer network is based on a hydrophilic telechelic macromonomer. The second polymer network is based on a hydrophilic monomer. The hydrophilic monomer is polymerized and cross-linked to form the second polymer network in the presence of the first polymer network. The telechelic macromonomer preferably has a molecular weight of between about 575 Da and about 20,000 Da. Mixtures of molecular weights may also be used. In a preferred embodiment, the hydrophilic telechelic macromonomer is PEG-diacrylate or PEG-dimethacrylate and the hydrophilic monomer is an acrylic-based monomer. The material is designed to serve as a contact lens.

    摘要翻译: 本发明提供了具有高透氧性,强度,含水量和耐蛋白质吸附性的互穿聚合物网状水凝胶。 水凝胶包括两个互穿聚合物网络。 第一个聚合物网络是基于亲水的遥爪大分子单体。 第二聚合物网络基于亲水性单体。 在第一聚合物网络的存在下,亲水单体聚合并交联以形成第二聚合物网络。 遥爪大分子单体的分子量优选为约575Da至约20,000Da。 也可以使用分子量的混合物。 在优选的实施方案中,亲水遥爪大分子单体是PEG-二丙烯酸酯或PEG-二甲基丙烯酸酯,亲水性单体是丙烯酸类单体。 该材料被设计成用作隐形眼镜。

    Artificial cornea
    10.
    发明申请
    Artificial cornea 审中-公开
    人造角膜

    公开(公告)号:US20060287721A1

    公开(公告)日:2006-12-21

    申请号:US11409218

    申请日:2006-04-20

    IPC分类号: A61F2/14

    CPC分类号: A61F2/142 A61F2/15 A61K35/12

    摘要: The present invention provides an artificial corneal implant having an optically clear central core and a porous, hydrophilic, biocompatible skirt peripheral to the central core. In one embodiment, the central core is made of an interpenetrating double network hydrogel and the skirt is made of poly(2-hydroxyethyl acrylate) (PHEA). In another embodiment, both the central core and the skirt are made of interpenetrating double network hydrogels. The artificial corneal implant may also have an interdiffusion zone in which the skirt component is interpenetrated with the core component, or vice versa. In a preferred embodiment, biomolecules are linked to the skirt, central core or both. These biomolecules may be any type of biomolecule, but are preferably biomolecules that support epithelial and/or fibroblast cell survival and growth. Preferably, the biomolecules are linked in a spatially selective manner. The present invention also provides a method of making an artificial corneal implant using photolithography.

    摘要翻译: 本发明提供了一种人造角膜植入物,其具有光学透明的中心纤芯和围绕中心纤芯的多孔,亲水的,生物相容的裙部。 在一个实施方案中,中心芯由互穿双网络水凝胶制成,裙部由聚(丙烯酸2-羟乙酯)(PHEA)制成。 在另一个实施例中,中心芯和裙部均由互穿双网络水凝胶制成。 人造角膜植入物也可以具有相互扩散区​​域,其中裙部组件与芯部件互穿,反之亦然。 在优选的实施方案中,生物分子连接到裙部,中心芯或两者。 这些生物分子可以是任何类型的生物分子,但优选支持上皮和/或成纤维细胞存活和生长的生物分子。 优选地,生物分子以空间选择性方式连接。 本发明还提供了使用光刻法制造人造角膜植入物的方法。