THIOLATED PEG-PVA HYDROGELS
    1.
    发明公开
    THIOLATED PEG-PVA HYDROGELS 审中-公开
    THIOLATED PEG-PVA水凝胶

    公开(公告)号:EP3167000A1

    公开(公告)日:2017-05-17

    申请号:EP15818380.6

    申请日:2015-07-08

    CPC classification number: C08J3/075 A61K31/00 A61K31/795 A61K47/32 C08J2329/04

    Abstract: A method of forming thiolated poly(vinyl alcohol) hydrogels including reacting, in the presence of an acid, compounds containing a thiol functional group and a hydroxyl reactive group with one or more hydroxyl groups of poly(vinyl alcohol) via said hydroxyl reactive group, thereby forming thiolated poly(vinyl alcohol). The method further including reacting the thiol functional group of said compounds with a thiol reactive group of a crosslinker, thereby forming a hydrogel.

    Abstract translation: 一种形成硫醇化聚乙烯醇水凝胶的方法,包括在酸的存在下使含有硫醇官能团和羟基反应性基团的化合物与聚乙烯醇的一个或多个羟基通过所述羟基反应性基团反应, 从而形成硫醇化聚乙烯醇。 该方法进一步包括使所述化合物的硫醇官能团与交联剂的硫醇反应性基团反应,由此形成水凝胶。

    SYSTEMS AND METHODS FOR CONTROLLING AND FORMING POLYMER GELS
    10.
    发明公开
    SYSTEMS AND METHODS FOR CONTROLLING AND FORMING POLYMER GELS 审中-公开
    用于控制和形成聚合物凝胶的系统和方法

    公开(公告)号:EP1713851A2

    公开(公告)日:2006-10-25

    申请号:EP05751023.2

    申请日:2005-02-04

    Abstract: In preferred embodiments, the present invention provides methods of controllably making a vinyl polymer hydrogel having desired physical properties without chemical cross links or radiation. The gelation process is modulated by controlling, for example, the temperature of a resultant vinyl polymer mixture having a gellant or using active ingredients provided in an inactive gellant complex. In accordance with a preferred embodiment, the method of manufacturing a vinyl polymer hydrogel includes the steps of providing a vinyl polymer solution comprising a vinyl polymer dissolved in a first solvent; heating the vinyl polymer solution to a temperature elevated above the melting point of the physical associations of the vinyl polymer, mixing the vinyl polymer solution with a gellant, wherein the resulting mixture has a higher Flory interaction parameter than the vinyl polymer solution; inducing gelation of the mixture of vinyl polymer solution and gellant; and controlling the gelation rate to form a viscoelastic solution, wherein workability is maintained for a predetermined period, thereby making a vinyl polymer hydrogel having the desired physical property. In further preferred embodiments, the present invention provides physically crosslinked hydrogels produced by controlled gelation of viscoelastic solution wherein workability is maintained for a predetermined period. In another aspect, the present invention provides kits for use in repairing intervertebral disks or articulated joints including a dispenser and single use containers housing components that form the vinyl polymer hydrogel.

    Abstract translation: 在优选的实施方案中,本发明提供了可控地制备具有所需物理性质的乙烯基聚合物水凝胶而无化学交联或辐射的方法。 通过控制例如具有胶凝剂的所得乙烯基聚合物混合物的温度或使用在非活性胶凝剂复合物中提供的活性成分来调节凝胶化过程。 根据优选实施方案,制造乙烯基聚合物水凝胶的方法包括以下步骤:提供包含溶解于第一溶剂中的乙烯基聚合物的乙烯基聚合物溶液; 将乙烯基聚合物溶液加热至高于乙烯基聚合物物理缔合点熔点的温度,将乙烯基聚合物溶液与胶凝剂混合,其中所得混合物具有比乙烯基聚合物溶液更高的Flory相互作用参数; 诱导乙烯基聚合物溶液和胶凝剂的混合物的胶凝; 并控制凝胶化速率以形成粘弹性溶液,其中可操作性保持预定时间,由此制造具有所需物理性质的乙烯基聚合物水凝胶。 在进一步优选的实施方案中,本发明提供通过控制粘弹性溶液的凝胶化而生产的物理交联水凝胶,其中可操作性保持预定时间。 另一方面,本发明提供用于修复椎间盘或铰接接头的试剂盒,其包括分配器和形成乙烯基聚合物水凝胶的单次使用容器外壳部件。

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