PVA hydrogel
    4.
    发明授权
    PVA hydrogel 有权
    PVA水凝胶

    公开(公告)号:US07985781B2

    公开(公告)日:2011-07-26

    申请号:US12170303

    申请日:2008-07-09

    摘要: The present invention provides methods of making covalently crosslinked vinyl polymer hydrogels having advantageous physical properties, and covalently crosslinked vinyl polymer hydrogel compositions made by such methods, as well as articles of manufacture comprising such covalently crosslinked vinyl polymer hydrogel compositions. The physical properties of the produced hydrogels can be adjusted by varying controlled parameters such as the proportion of physical associations, the concentration of polymer and the amount of radiation applied. Such covalently crosslinked vinyl polymer hydrogels can be made translucent, preferably transparent, or opaque depending on the processing conditions. The stability of the physical properties of the produced vinyl polymer hydrogel can be enhanced by controlling the amount of covalent crosslinks.

    摘要翻译: 本发明提供了制备具有有利物理性质的共价交联的乙烯基聚合物水凝胶和通过这些方法制备的共价交联的乙烯基聚合物水凝胶组合物的方法,以及包含这种共价交联的乙烯基聚合物水凝胶组合物的制品。 所产生的水凝胶的物理性质可以通过改变受控参数来调节,例如物理缔合的比例,聚合物的浓度和施加的辐射量。 根据加工条件,这种共价交联的乙烯基聚合物水凝胶可以制成半透明的,优选透明的或不透明的。 所制备的乙烯基聚合物水凝胶的物理性质的稳定性可以通过控制共价交联剂的量来增强。

    COATED TEXTILES
    5.
    发明申请
    COATED TEXTILES 审中-公开
    涂层纺织品

    公开(公告)号:US20100030284A1

    公开(公告)日:2010-02-04

    申请号:US12158894

    申请日:2006-12-21

    摘要: A textile material (21, 21′) comprising a textile substrate (22, 22′) has, at least on part of the surface of the textile substrate (22, 22′), a coating (24, 24′) that contains at least one compound chosen from the group composed of hydrogels, except keratin hydrogels, of polyurethanes, polyvinyl chloride, polytetrafluoroethylene and any desired combinations of two or more of the aforementioned compounds. This textile material (21, 21′) can be used particularly as a substance for an artificial intervertebral disc (16″, 16′″), as a replacement for the nucleus pulposus (16′, 16″), cage (16, 16′), vertebral body implant (16″″), articular surface substitute, or as a tube (18, 18′, 18′, 18″) in vertebroplasty or nucleoplasty.

    摘要翻译: 包含织物基材(22,22')的纺织材料(21,21')在织物基材(22,22')的至少一部分表面上具有包含在该织物基材 至少一种选自除水凝胶,角蛋白水凝胶,聚氨酯,聚氯乙烯,聚四氟乙烯以外的两种或更多种上述化合物的所需组合组成的组合物。 该纺织材料(21,21')可特别用作人造椎间盘(16“,16”)的物质,作为髓核(16',16“),保持架 16,16'),椎体植入物(16“'),关节表面替代物或作为椎体成形术或核成形术中的管(18,18',18',18”)。

    Ophthalmoscopic contact lens
    9.
    发明授权
    Ophthalmoscopic contact lens 有权
    眼科隐形眼镜

    公开(公告)号:US08678593B2

    公开(公告)日:2014-03-25

    申请号:US13279412

    申请日:2011-10-24

    申请人: Niels A. Abt

    发明人: Niels A. Abt

    IPC分类号: A61B3/00 A61B3/10

    摘要: An ophthalmoscopic surgical contact lens for placement on an eye of a patient is disclosed. The surgical contact lens includes an optic surrounded by a rim and at least one flange. The optic includes an aspheric anterior surface and a posterior surface having a shape substantially corresponding to the shape of a human cornea. The rim, comprising an edge surrounding the optic, provides the user with a gripping surface conducive to manual positioning and repositioning of the lens against a human eye. The flange may include a plurality of tabs extending from a periphery of the flange, wherein each tab is shaped and configured to conform to the curvature of a human sclera. Various embodiments of the contact lenses disclosed herein facilitate the visualization of structures within the interior of an eye, such as may be necessary during vitreoretinal surgical procedures.

    摘要翻译: 公开了一种用于放置在患者眼睛上的眼底镜手术隐形眼镜。 手术隐形眼镜包括由边缘和至少一个凸缘包围的光学元件。 光学元件包括非球面前表面和具有基本对应于人角膜形状的形状的后表面。 包括围绕光学元件的边缘的边缘为使用者提供了有助于手指定位并将镜片重新定位在人眼上的抓握表面。 凸缘可以包括从凸缘的周边延伸的多个凸片,其中每个凸片被成形并且构造成符合人类巩膜的曲率。 本文公开的隐形眼镜的各种实施例有助于眼睛内部的结构的可视化,例如在玻璃体视网膜外科手术过程中可能需要的。