Polymer coating for rubber articles
    2.
    发明申请
    Polymer coating for rubber articles 审中-公开
    橡胶制品用聚合物涂料

    公开(公告)号:US20030175500A1

    公开(公告)日:2003-09-18

    申请号:US10378026

    申请日:2003-02-28

    IPC分类号: B32B005/16

    摘要: The present invention is directed to the use of a polymer coating composition microbeads and a high Tg polymer with a Tg of greater than null10null C. for the inner coating on natural and synthetic rubber articles, particularly for latex gloves. The coating composition provides an inner surface coating that reduces friction between the latex and the hand to allow convenient donning. The coating composition is deliverable from an aqueous solution.

    摘要翻译: 本发明涉及聚合物涂料组合物微珠和Tg高于-10℃的高Tg聚合物,用于天然和合成橡胶制品,特别是乳胶手套上的内涂层。 涂料组合物提供内表面涂层,其减少胶乳和手之间的摩擦,以便于穿戴。 涂料组合物可从水溶液中输出。

    Zwitterionic materials
    3.
    发明授权
    Zwitterionic materials 失效
    两性离子材料

    公开(公告)号:US5645883A

    公开(公告)日:1997-07-08

    申请号:US464677

    申请日:1995-06-07

    摘要: The present invention provides materials which comprise a surface having pendant zwitterionic groups Z comprising, as anion, a phosphate, sulphonate, carboxylate or phosphate-ester group or a phosphate ester group in which one or more of the ester oxygen atoms is replaced by --S--, --NH-- or by a valence bond and, as cation, an ammonium, phosphonium or sulphonium moiety, provided that where the anion is a phosphate-ester group or derivative thereof or sulphonate and the cation is a trialkyl quaternary ammonium group (the alkyl groups each containing from 1 to 4 carbon atoms) and the group linking the anion and cation moieties is an alkylene group, the alkylene group, contains at least 5, preferably at least 6, and more preferably at least 7, carbon atoms. The materials have improved biocompatibility for instance as evidenced by reduced protein deposition and reduced platelet activation.

    摘要翻译: PCT No.PCT / GB94 / 00178 Sec。 371日期:1995年6月7日 102(e)1995年6月7日PCT PCT 1994年1月28日PCT公布。 第WO94 / 16749号公报 日期1994年8月4日本发明提供了包含具有侧向两性离子基团Z的表面的材料,其包含作为阴离子的磷酸盐,磺酸盐,羧酸盐或磷酸酯基团或磷酸酯基团,其中一个或多个酯氧原子 由-S-,-NH-或价键取代,并且作为阳离子,铵,鏻或锍部分,其中阴离子是磷酸酯基团或其衍生物或磺酸盐并且阳离子是三烷基 季铵基(各自含有1至4个碳原子的烷基)和连接阴离子和阳离子部分的基团是亚烷基,亚烷基含有至少5个,优选至少6个,更优选至少7个 ,碳原子。 这些材料具有改善的生物相容性,例如通过减少的蛋白质沉积和减少的血小板活化来证明。

    Directional drug delivery stent and method of use
    4.
    发明授权
    Directional drug delivery stent and method of use 失效
    定向药物输送支架及其使用方法

    公开(公告)号:US6071305A

    公开(公告)日:2000-06-06

    申请号:US976725

    申请日:1997-11-24

    摘要: The invention relates to a directional drug delivery stent which includes an elongated or tubular member having a cavity containing a biologically active agent. In one embodiment, the active agent is diffused from the reservoir directly to the walls of a body lumen, such as a blood vessel, through directional delivery openings arranged on an outer surface of the elongated member. Another variation of the stent includes an osmotic engine assembly for controlling the delivery of the active agent from the reservoir. The drugs which may be applied by the directional delivery stent include, but are not limited to, steroids, anti-inflammatory agents, restenosis preventing drugs, anti-thrombotic drugs, and tissue growth regulating drugs. The invention also relates to a method of using the directional drug delivery stent.

    摘要翻译: 本发明涉及定向药物递送支架,其包括具有包含生物活性剂的空腔的细长管状构件。 在一个实施方案中,活性剂通过布置在细长构件的外表面上的定向输送开口从储存器直接扩散到体腔(例如血管)的壁。 支架的另一变体包括渗透引擎组件,用于控制活性剂从贮存器的输送。 可以由定向递送支架施用的药物包括但不限于类固醇,抗炎剂,预防再狭窄药物,抗血栓形成药物和组织生长调节药物。 本发明还涉及使用定向药物输送支架的方法。

    Biodegradable coating with inhibitory properties for application to
biocompatible materials
    6.
    发明授权
    Biodegradable coating with inhibitory properties for application to biocompatible materials 失效
    具有抑制性能的可生物降解涂料,适用于生物相容性材料

    公开(公告)号:US5788979A

    公开(公告)日:1998-08-04

    申请号:US798333

    申请日:1997-02-10

    摘要: A method is disclosed for coating a biomaterial to be placed in contact with a patient's blood flow to inhibit blood coagulation from adhering to the biomaterial that would otherwise result from such contact. A biodegradable material of liquid state compatible with the blood and tissue of the human body is prepared, and an anti-coagulant drug is incorporated into the liquid state of the biodegradable material to form a liquid coating material. The liquid coating material is adhesively applied to a surface of the biomaterial in a substantially continuous overlying layer having a formulation, pattern and thickness selected according to the period of time over which the coating material is to perform its anti-coagulant action. Thereafter the coating material is dried to a layer thickness less than about 100 microns for continuous disintegration thereof as a function of time when the layer is in contact with flowing blood. The method is utilized in an exemplary embodiment in which the biomaterial is a vascular stent.

    摘要翻译: 公开了一种用于涂覆待放置与患者血液流动接触的生物材料以抑制血液凝固附着于否则由此类接触引起的生物材料的方法。 制备与人体血液和组织相容的液体状态的可生物降解材料,将抗凝剂药物并入生物降解材料的液态,形成液体涂料。 液体涂料在基本上连续的上覆层中粘附到生物材料的表面上,其具有根据涂层材料要进行其抗凝结剂作用的时间段选择的配方,图案和厚度。 此后,当层与流动的血液接触时,将涂层材料干燥至厚度小于约100微米,以使其连续崩解,作为时间的函数。 在其中生物材料是血管支架的示例性实施例中使用该方法。