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    • 2. 发明授权
    • Hydrocolloid adhesive mass useful for medical purposes
    • 水胶体粘合剂用于医疗用途
    • US06375977B1
    • 2002-04-23
    • US09655429
    • 2000-09-05
    • Stephane AugusteLaurent ApertLuc Garima
    • Stephane AugusteLaurent ApertLuc Garima
    • A61L1516
    • A61L15/585
    • The present invention relates to a novel hydrocolloid adhesive mass useful for medical purposes, characterized in that said hydrocolloid adhesive mass comprises: a) 0.2 to 5 parts by weight of an ethoxylated sorbitan fatty acid ester; b) 20 to 50 parts by weight of a hydrocolloid; c) 32 to 120 to parts by weight of an adhesive matrix made up of one or more polymers selected from poly(styrene/olefin/styrene) block copolymers, low-molecular polyisobutylenes and high-molecular polyisobutylenes, and one or more compounds selected from sticky resins, or tackifying resins, plasticizers, polybutenes, antioxidants, ethylene/vinyl acetate copolymers, butyl rubbers and ethylene/propylene block copolymers; and d) 0 to 15 parts by weight of an acrylate copolymer with a glass transition temperature below −20° C. It further relates to the use of this hydrocolloid adhesive mass for the production of dressings, especially for the treatment of superficial, deep, chronic or acute dermo-epidermal lesions, exudative wounds and bums.
    • 本发明涉及一种用于医疗目的的新型水胶体粘合剂组合物,其特征在于所述水胶体粘合剂组合物包括:a)0.2至5重量份的乙氧基化山梨糖醇酐脂肪酸酯; b)20至50重量份的 水解胶体; c)32至120重量份的由选自聚(苯乙烯/烯烃/苯乙烯)嵌段共聚物,低分子量聚异丁烯和高分子量聚异丁烯的一种或多种聚合物组成的粘合剂基质和一种或多种化合物 选自粘性树脂或增粘树脂,增塑剂,聚丁烯,抗氧化剂,乙烯/乙酸乙烯酯共聚物,丁基橡胶和乙烯/丙烯嵌段共聚物; andd)0至15重量份的玻璃化转变温度低于-20℃的丙烯酸酯共聚物。此外还涉及该水胶体粘合剂用于生产敷料的用途,特别是用于治疗浅层,深层,慢性 或急性皮肤 - 表皮损伤,渗出性伤口和烧伤。
    • 5. 发明授权
    • Conveyance of anti-infective activity to wound dressings
    • 传染性感染活动对伤口敷料
    • US06592890B1
    • 2003-07-15
    • US09694104
    • 2000-10-19
    • Terrence R. Green
    • Terrence R. Green
    • A61L1516
    • A61L15/46A61L15/24A61L15/26A61L15/38A61L2300/106A61L2300/254A61L2300/404C08L33/26
    • A wound dressing having anti-infective activity. The wound dressing provides stable and improved formulations of precursors required in generating anti-infective iodine specifically within a wound site where the oxygen tension may be very low. Furthermore, the design of the invention precludes interference by catalase (and other heme proteins.) in competing for hydrogen peroxide where hydrogen peroxide is used as a component of the iodine generating formulation, ensuring more efficient and sustained production of free iodine as a potent anti-infective agent. The invention takes advantage of the physical design of the wound dressing, and the permeation of body fluid into the dressing, which together serve to initiate formation of nascent iodine concomitant with placement of the dressing into, or over, a wound site. The invention circumvents the problem of trapping elemental iodine in the form of tri-iodide, which lacks microbicidal activity, by the chemical method of generating iodine de novo, and in the presence of excess oxidant. Newly formed iodine is thus able to egress and disperse throughout the wound site before there is an opportunity for it to become fully bound as tri-iodide, conferring to the wound site anti-infective activity. Two embodiments of the wound dressing invention are described comprising a mono- and bilayer configuration which, when placed in a wound site, confer to the site anti-infective properties.
    • 伤口敷料具有抗感染活性。 创伤敷料提供稳定和改进的前体制剂,其特别是在氧压力可能非常低的伤口部位产生抗感染性碘所需的前体制剂。 此外,本发明的设计排除了过氧化氢酶(和其他血红素蛋白质)在竞争过氧化氢中的干扰,其中过氧化氢被用作碘产生制剂的组分,确保更有效和持续地生产游离碘作为有效的抗 有效代理。 本发明利用伤口敷料的物理设计,以及体液渗透到敷料中,这些一起用于起始形成新生碘,同时将敷料放置在伤口部位中或上方。 本发明通过从过去产生碘的化学方法,在过量的氧化剂存在下,克服了以三碘化物形式捕获元素碘,缺乏杀菌活性的问题。 因此,新形成的碘能够在整个伤口部位出口并分散,在其有机会完全结合为三碘化物,赋予伤口部位抗感染活性。 描述了伤口敷料发明的两个实施方案,其包括单层和双层构型,其在置于伤口部位时赋予该部位抗感染性质。
    • 8. 发明授权
    • Method for preparing two-layer bicomposite collagen material for preventing post-operative adhesions
    • 制备双层双层复合胶原材料以防止手术后粘连的方法
    • US06596304B1
    • 2003-07-22
    • US09554509
    • 2000-07-11
    • Yves BayonPhilippe GravagnaJean-Lois Tayot
    • Yves BayonPhilippe GravagnaJean-Lois Tayot
    • A61L1516
    • A61L15/325A61L31/044
    • A bicomposite material based on collagen is prepared which has two closely bound layers and is biocompatible, non-toxic, hemostatic and biodegradable in less than a month, and can be used in surgery to achieve hemostasis and prevent post-surgical adhesion. To prepare the material, a solution of collagen or gelatin, which may contain glycerine and a hydrophilic additive such as polyethylene glycol or a polysaccharide, is poured onto an inert support to form a layer 30 &mgr;m to less than 100 &mgr;m thick. Then a polymeric porous fibrous layer is applied during gelling of the collagen or gelatin, and the resultant material is dried. The polymeric porous fibrous layer may be made of collagen or a polysaccharide, and have a density of not more than 75 mg/cm2, a pore size from 30 &mgr;m to 300 &mgr;m and a thickness of 0.2 cm to 1.5 cm.
    • 制备基于胶原的双组分材料,其具有两个紧密结合的层,并且在不到一个月的时间内具有生物相容性,无毒性,止血性和生物降解性,并且可用于手术以实现止血并防止手术后粘连。 为了制备材料,将可能含有甘油和亲水性添加剂如聚乙二醇或多糖的胶原蛋白或明胶溶液倒入惰性支持体中以形成30μm至小于100μm厚的层。 然后在胶原或明胶的胶凝过程中施加聚合物多孔纤维层,并将所得材料干燥。 聚合物多孔纤维层可以由胶原或多糖制成,密度不超过75mg / cm 2,孔径从30μm至300μm,厚度为0.2cm至1.5cm。