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    • 3. 发明申请
    • SYSTEMS AND METHODS FOR CONTROLLING AND FORMING POLYMER GELS
    • 用于控制和形成聚合物凝胶的系统和方法
    • US20060270781A1
    • 2006-11-30
    • US11462799
    • 2006-08-07
    • Jeffrey RubertiGavin Braithwaite
    • Jeffrey RubertiGavin Braithwaite
    • A61F2/44C08L29/04
    • A61F2/442A61F2002/444A61L27/16A61L27/52A61L2430/38C08J3/09C08J2329/04C08L29/04Y10S516/902Y10S524/916C08L2666/26
    • 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 hyrodgel 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 gellation 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 components that form the vinyl polymer hydrogel and a dispenser.
    • 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而没有化学交联或辐射的乙烯基聚合物水凝胶的方法。 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络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,制备乙烯基聚合物凝胶的方法包括以下步骤:提供包含溶解在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到高于乙烯基聚合物的物理缔合的熔点的温度,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; 引起乙烯基聚合物溶液和胶凝剂混合物的凝胶化; 并控制凝胶化速率以形成粘弹性溶液,其中可加工性保持预定时间,从而制备具有所需物理性能的乙烯基聚合物水凝胶。 在进一步优选的实施方案中,本发明提供了通过可控制的粘弹性溶液凝胶制备的物理交联水凝胶,其中可操作性保持预定时间。 另一方面,本发明提供了用于修复椎间盘或关节连接的试剂盒,其包括形成乙烯基聚合物水凝胶的组分和分配器。
    • 6. 发明申请
    • Systems and methods for controlling and forming polymer gels
    • 用于控制和形成聚合物凝胶的系统和方法
    • US20070167541A1
    • 2007-07-19
    • US10566263
    • 2004-02-04
    • Jeffrey RubertiGavin Braithwaite
    • Jeffrey RubertiGavin Braithwaite
    • C08K5/15
    • C08J3/09A61K9/0024C08J2329/04
    • 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 components that form the vinyl polymer hydrogel and a dispenser.
    • 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而没有化学交联或辐射的乙烯基聚合物水凝胶的方法。 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络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,制备乙烯基聚合物水凝胶的方法包括以下步骤:提供包含溶解在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到高于乙烯基聚合物的物理缔合的熔点的温度,将乙烯基聚合物溶液与胶凝胶混合,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:引起凝胶化 乙烯基聚合物溶液和胶凝剂的混合物; 并控制凝胶化速率以形成粘弹性溶液,其中可加工性保持预定时间,从而制备具有所需物理性能的乙烯基聚合物水凝胶。 在进一步优选的实施方案中,本发明提供通过粘弹性溶液的受控凝胶化产生的物理交联水凝胶,其中可操作性保持预定时间。 另一方面,本发明提供了用于修复椎间盘或关节连接的试剂盒,其包括形成乙烯基聚合物水凝胶的组分和分配器。
    • 8. 发明申请
    • PVA hydrogel
    • PVA水凝胶
    • US20060079597A1
    • 2006-04-13
    • US10962975
    • 2004-10-12
    • Orhun MuratogluStephen SpiegelbergJeffrey RubertiNiels Abt
    • Orhun MuratogluStephen SpiegelbergJeffrey RubertiNiels Abt
    • B29D11/00
    • C08J3/28C08J2329/04Y10S524/916
    • 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.
    • 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。