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    • 7. 发明申请
    • ANTI-MICROBIAL MATERIALS
    • 抗微生物材料
    • WO1995013704A1
    • 1995-05-26
    • PCT/CA1994000604
    • 1994-11-01
    • WESTAIM TECHNOLOGIES INC.BURRELL, Robert, EdwardAPTÉ, Prasad, ShrikrishnaGILL, Kashmir, SinghPRECHT, Roderick, JohnMORRIS, Larry, RoyMCINTOSH, Catherine, LaurieSANT, Sudhindra, Bharat
    • WESTAIM TECHNOLOGIES INC.
    • A01N59/16
    • C23C14/588A01N59/16A01N59/26A61B2018/00119A61L17/145A61L29/106C23C14/0036C23C14/025C23C14/06C23C14/0688C23C14/086C23C14/14C23C14/16A01N47/30A01N43/80A01N43/78A01N41/08A01N2300/00
    • Anti-microbial coatings and powders and method of forming same on medical devices are provides. The coatings are preferably formed by depositing an anti-microbial biocompatible metal by vapour deposition techniques to produce atomic disorder in the coating such that a sustained release of metal ions sufficient to produce an anti-microbial effect is achieved. Preferred deposition conditions to achieve atomic disorder include a lower than normal substrate temperature, and one or more of a higher than normal working gas pressure and a lower than normal angle of incidence of coating flux. Anti-microbial powders formed by vapour deposition or altered by mechanical working to produce atomic disorder are also provided. The anti-microbial effect of the coatings or powders may be further activated or enhanced by irradiating with a low linear energy transfer form of radiation such as gamma radiation. Novel anti-microbial silver materials are defined, characterized by having a positive rest potential, a Trec/Tm less than 0.33, and a grain size less than 200 nm. Anti-microbial fine grain or nanocrystalline materials are provided, together with methods of preparation, wherein the anti-microbial metal if deposited in a matrix with atoms or molecules of a different material such as other biocompatible metals (ex. Ta), trapped or absorbed oxygen, or compounds of anti-microbial metals or biocompatible metals (ex. Ag0 or TaO). The invention also extends to a method of producing an anti-microbial effect with silver materials that form complex silver ions other than Ag , Ag and Ag .
    • 提供了抗微生物涂层和粉末及其在医疗设备上的形成方法。 优选通过气相沉积技术沉积抗微生物生物相容性金属以在涂层中产生原子紊乱形成涂层,从而实现足以产生抗微生物作用的金属离子的持续释放。 实现原子紊乱的优选沉积条件包括低于正常的衬底温度,以及高于正常工作气体压力和低于正常入射角的涂层焊剂的一种或多种。 还提供了通过气相沉积或通过机械加工改变以产生原子紊乱形成的抗微生物粉末。 通过用低线性能量转移形式的辐射如γ辐射照射可以进一步激活或增强涂层或粉末的抗微生物作用。 定义了新的抗微生物银材料,其特征在于具有阳性静电位,Trec / Tm小于0.33,粒度小于200nm。 提供抗微生物细晶粒或纳米晶体材料以及制备方法,其中如果将抗微生物金属沉积在具有不同材料的原子或分子的基质中,例如其它生物相容性金属(例如Ta),被捕获或吸收 氧气或抗微生物金属或生物相容性金属化合物(例如AgO或TaO)。 本发明还延伸到用除Ag +,Ag 2+和Ag <3+以外的复合银离子的银材料产生抗菌效果的方法。
    • 9. 发明申请
    • METHOD AND APPARATUS FOR TRANSPORTING FLUIDS
    • 运输流体的方法和装置
    • WO2005095844A1
    • 2005-10-13
    • PCT/GB2005/001285
    • 2005-04-01
    • J. P. KENNY LIMITEDJOHAL, Kashmir, Singh
    • JOHAL, Kashmir, Singh
    • F17D1/00
    • F17D1/005
    • A method of transporting produced fluid, the method comprising: adding carrier fluid to the produced fluid at a first point (18); the carrier fluid suitable to allow a portion of any gaseous component of the produced fluid to move into the liquid phase; moving the well fluid and carrier fluid to a second point (16). In preferred embodiments the method transports hydrocarbons from near a subsea wellhead (20) to an offshore host facility (16). The host facility (16) separates out normally liquid hydrocarbons which are reinjected back at, or close to, the wellhead. The gas phase in the fluid produced by the well is absorbed by the reinjected liquid hydrocarbons allowing the produced well fluids to proceed from the wellhead to the host facility substantially in the liquid phase.
    • 一种输送所产生的流体的方法,所述方法包括:在第一点(18)向所产生的流体中加入载体流体; 所述载体流体适于允许产生的流体的任何气体组分的一部分移动到所述液相中; 将井液和载体流体移动到第二点(16)。 在优选实施例中,该方法将碳氢化合物从海底井口(20)附近运送至离岸主机设施(16)。 主机设施(16)将正常液体的碳氢化合物分离出来,再循环回到或靠近井口。 由井产生的流体中的气相被再注入的液体烃吸收,从而允许所产生的井流体基本上在液相中从井口进入主机设施。