MICROBEADS OF NATURAL POLYSACCHARIDE AND HYALURONIC ACID AND PROCESSES FOR PREPARING THE SAME
    82.
    发明申请
    MICROBEADS OF NATURAL POLYSACCHARIDE AND HYALURONIC ACID AND PROCESSES FOR PREPARING THE SAME 审中-公开
    天然多糖和羟丙酸的微生物及其制备方法

    公开(公告)号:WO2004020473A1

    公开(公告)日:2004-03-11

    申请号:PCT/KR2003/001716

    申请日:2003-08-25

    Abstract: The present invention relates to microbeads comprising natural polysaccharides selected from alginic acid and chitosan, and hyaluronic acid, and processes for preparing the same. The microbeads according to the present invention are biocompatible and have a high swelling property and thus can be used for various purposes such as post-operative adhesion-preventing gels or films, materials for wrinkle treatment, materials for plastic surgery, materials for arthritis treatment, and drug delivery vehicles. Especially, the chitosan-hyaluronic acid microbead and the chitosan-coated alginic acid-hyaluronic acid microbead, in which an amide bond is formed between the amine group of chitosan and the carboxyl group of hyaluronic acid and/or alginic acid, have an excellent swelling property, physical stability and viscoelasticity and thus can be used as biocompatible materials able to withstand various in vivo conditions.

    Abstract translation: 本发明涉及包含选自藻酸和壳聚糖的天然多糖和透明质酸的微珠及其制备方法。 根据本发明的微珠是生物相容的并且具有高溶胀性,因此可以用于各种目的,例如术后粘合防止凝胶或膜,用于皱纹治疗的材料,用于整形手术的材料,用于关节炎治疗的材料, 和药物输送车辆。 尤其是壳聚糖 - 透明质酸微珠和壳聚糖包覆的藻酸 - 透明质酸微珠在壳聚糖的胺基与透明质酸和/或藻酸的羧基之间形成酰胺键具有优异的溶胀性 性能,物理稳定性和粘弹性,因此可以用作能够承受各种体内条件的生物相容性材料。

    FLEXIBLE AND ABSORBENT ALGINATE WOUND DRESSING
    83.
    发明申请
    FLEXIBLE AND ABSORBENT ALGINATE WOUND DRESSING 审中-公开
    柔软和吸收性藻酸盐伤口敷料

    公开(公告)号:WO03045293B1

    公开(公告)日:2003-08-21

    申请号:PCT/US0237440

    申请日:2002-11-21

    Applicant: US AGRICULTURE

    Inventor: EDWARDS JUDSON V

    CPC classification number: A61L15/28 C08L5/04

    Abstract: A wound dressing containing cellulose-containing material and alginate, wherein the alginate is crosslinked through a polycarboxylic acid ester bond to the cellulose of the cellulose-containing material. A method for preparing a wound dressing is disclosed wherein alginate is crosslinked to cellulose through a polycarboxylic acid ester bond, comprising introducing cellulose-containing material into an aqueous solution wherein the aqueous solution contains water, alginate, a crosslinker, optionally an acid catalyst, and optionally polyethylene glycol to form cellulose-containing material wherein alginate is crosslinked to cellulose through a polycarboxylic acid ester bond, drying, and curing. A wound dressing wherein the wound dressing is prepared by the above method.

    Abstract translation: 一种含有含纤维素材料和藻酸盐的伤口敷料,其中藻酸盐通过多羧酸酯键交联到含纤维素材料的纤维素上。 公开了制备伤口敷料的方法,其中藻酸盐通过多羧酸酯键与纤维素交联,所述方法包括将含纤维素材料引入水溶液中,其中所述水溶液含有水,海藻酸盐,交联剂,任选的酸催化剂和 任选聚乙二醇以形成含纤维素材料,其中藻酸盐通过多羧酸酯键与纤维素交联,干燥和固化。 其中伤口敷料通过上述方法制备的伤口敷料。

    VORRICHTUNG UND VERFAHREN ZUR HERSTELLUNG VON MIKROKAPSELN SOWIE VERBESSERTE MIKROKAPSEL
    84.
    发明申请
    VORRICHTUNG UND VERFAHREN ZUR HERSTELLUNG VON MIKROKAPSELN SOWIE VERBESSERTE MIKROKAPSEL 审中-公开
    DEVICE AND METHOD FOR生产微型胶囊和强化微胶囊

    公开(公告)号:WO2003064514A1

    公开(公告)日:2003-08-07

    申请号:PCT/EP2002/014239

    申请日:2002-12-13

    Abstract: Es wird eine Vorrichtung zur Herstellung von Mikrokapseln (1) aus einer vernetzungsfähigen Kapselsubstanz, insbesondere aus vernetzten Alginaten beschrieben, mit einer ersten Abgabeeinrichtung (2) zur Abgabe eines Strahls der vernetzungsfähigen Kapselsubstanz und einer Vernetzungseinrichtung zur Applizierung eines Vernetzungsmittels auf die Kapselsubstanz, wobei die Vernetzungseinrichtung eine zweite Abgabeeinrichtung (5) aufweist, die einen Strahl (9, 13) des Vernetzungsmittels auf den Strahl der Kapselsubstanz richtet.

    Abstract translation: 提供了一种装置,用于生产由可交联的胶囊物质的微胶囊(1),特别是交联的藻酸盐的描述,与第一输送装置(2)用于分配可交联的胶囊物质的射流,以及用于应用的交联剂的在胶囊物质的网络设备,其中,所述交联方式 第二分配装置(5)包括所述交联剂的光束(9,13)取决于胶囊物质的喷射。

    METHODS FOR FORMING HARDENED TUBES AND SHEETS
    86.
    发明申请
    METHODS FOR FORMING HARDENED TUBES AND SHEETS 审中-公开
    形成硬化管和薄片的方法

    公开(公告)号:WO2002077336A1

    公开(公告)日:2002-10-03

    申请号:PCT/GB2002/001183

    申请日:2002-03-26

    CPC classification number: A61L27/34 C08L67/04 C08L89/06 C08L5/04 C08L35/04

    Abstract: To produce a hardened tube of biocompatible material, a regulator member (318) is moved in contact with a body of hardenable liquid along a conduit (303) so that a thin layer of the liquid is formed, which immediately contacts a hardening fluid to form the hardened tube. The tube may incorporate viable cells which are then cultured in the conduit (303) to prepare a surgical implant.

    Abstract translation: 为了生产生物相容性材料的硬化管,调节器构件(318)沿着导管(303)移动与可硬化液体的主体接触,使得形成薄层的液体,其立即接触硬化流体以形成 硬化管。 管可以结合活细胞,然后将其在导管(303)中培养以制备手术植入物。

    IONICALLY CROSSLINKED HYDROGELS WITH ADJUSTABLE GELATION TIME
    87.
    发明申请
    IONICALLY CROSSLINKED HYDROGELS WITH ADJUSTABLE GELATION TIME 审中-公开
    具有可调节凝胶时间的离子交换水凝胶

    公开(公告)号:WO0140370A3

    公开(公告)日:2002-09-26

    申请号:PCT/US0031635

    申请日:2000-11-17

    Inventor: MA PETER X

    Abstract: Biocompatible hydrogels, for: scaffoldings for tissue engineering; cell encapsulation matrices; injectable bulking materials for cosmetic and functional restorations; controlled release matrices; gene delivery vehicles; immunoprotection matrices; immobilization materials; food additives; medical gels; conductive electrode gels; lubricious coatings; film forming creams; membranes; superabsorbents; hydrophilic coatings; and wound dressings. The hydrogels include: at least one water-soluble polymer/copolymer; and at least one slow and/or fast dissolving and/or releasing divalent and/or multivalent cation-containing compound. At least one of the monomers is an acid, and/or contains an acid group or a derivative thereof. Such monomer reacts with the cations to form a three-dimensional ionically crosslinked hydrogel composition. A method for preparing such a composition comprises the step of controlling a rate of gel formation by varying at least one of: solubility of the cation containing compounds; cation concentration; mixture of cation containing compounds; polymer concentration; gelation temperature.

    Abstract translation: 生物相容性水凝胶,用于:组织工程用脚手架; 细胞包封基质; 用于化妆品和功能性修复剂的可注射膨胀材料; 控制释放矩阵; 基因递送载体; 免疫保护基质; 固定材料; 食品添加剂; 医用凝胶 导电电极凝胶; 润滑涂料; 成膜霜; 膜; 高吸水性树脂; 亲水涂料; 和伤口敷料。 水凝胶包括:至少一种水溶性聚合物/共聚物; 和至少一种缓慢和/或快速溶解和/或释放二价和/或多价阳离子的化合物。 至少一种单体是酸,和/或含有酸基或其衍生物。 这样的单体与阳离子反应形成三维离子交联的水凝胶组合物。 制备这种组合物的方法包括通过改变以下中的至少一种来控制凝胶形成速率的步骤:含阳离子化合物的溶解度; 阳离子浓度; 含阳离子化合物的混合物; 聚合物浓度; 凝胶化温度。

    PROCESS FOR THE PRODUCTION OF CHEMICALLY OR ENZYMATICALLY MODIFIED POLYSACCHARIDES, AND PRODUCTS MADE THEREBY
    89.
    发明申请
    PROCESS FOR THE PRODUCTION OF CHEMICALLY OR ENZYMATICALLY MODIFIED POLYSACCHARIDES, AND PRODUCTS MADE THEREBY 审中-公开
    生产化学或酶改性多糖及其产品的方法

    公开(公告)号:WO02012388A3

    公开(公告)日:2002-05-30

    申请号:PCT/US2001/024329

    申请日:2001-08-01

    Abstract: Process for reducing viscosity in an aqueous polysaccharide composition comprising combining the aqueous composition with a non-aqueous viscosity reducing agent. In particular, processes for reducing the viscosity in an aqueous carbohydrate gum composition. In particular, processes for reducing viscosity of an aqueous composition of polysaccharide comprising combining viscosity reducing agent with the polysaccharide composition in an amount effective to form a two phase system. Products produced according to the aforementioned processes are also described. Aqueous compositions including polysaccharide and non-aqueous viscosity reducing agent, and wherein the water content of the composition is at least about 40 wt.%. Aqueous compositions including polysaccharide and non-aqueous viscosity reducing agent and wherein the viscosity of the composition is reduced by at least 10%. Processes for resolubilizing solid oxidized carbohydrate gum comprising combining aqueous solvent with the oxidized carbohydrate gum under conditions effective to give a resolubilized composition a pH less than about 7.

    Abstract translation: 本发明涉及降低含水多糖组合物的粘度的方法。 该方法包括将含水组合物与非水性粘度降低剂结合。 更具体地说,本发明涉及降低水性糖胶组合物中粘度的方法。 它特别地涉及方法用于降低水性多糖组合物的粘度,并结合减粘剂与的量足以以形成两相体系的多糖组合物组成。 本发明还涉及通过上述方法获得的产品。 本发明还涉及包含多糖和非水粘度降低剂的水性组合物,该组合物的水含量等于或大于约40重量%,以及包含多糖和试剂的含水组合物。 非水性粘度降低剂,这种组合物的粘度降低至少10%。 再溶解基于碳水化合物的固体氧化胶质的一些方法包括将水性溶剂与碳水化合物氧化的胶质在使重新溶解的组合物具有小于约7的pH的条件下混合。

    POLYSACCHARIDE FIBRES
    90.
    发明申请
    POLYSACCHARIDE FIBRES 审中-公开
    多糖纤维

    公开(公告)号:WO02036866A1

    公开(公告)日:2002-05-10

    申请号:PCT/GB2001/004884

    申请日:2001-11-05

    Abstract: This invention relates to polysaccharide fibres having water absorption properties characterised by the incorporation within the fibres of at least one substance having anti-microbial properties, and to wound dressings formed from said fibres. The polysaccharide fibres are preferably formed from alginate or alginate containing additional polysaccharide materials to give additional absorbency (such as, for example, sodium carboymethyl cellulose). The fibres preferably contain a silver compound as an antimicrobial agent.

    Abstract translation: 本发明涉及具有吸水性的多糖纤维,其特征在于在至少一种具有抗微生物性质的物质的纤维内引入纤维,以及由所述纤维形成的伤口敷料。 多糖纤维优选由含有另外的多糖材料的藻酸盐或藻酸盐形成,以提供额外的吸收性(例如,例如,十八烷基乙基纤维素钠)。 纤维优选含有作为抗微生物剂的银化合物。

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