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    • 1. 发明授权
    • Low temperature pressure stabilization of implant component
    • 植入物组件的低温压力稳定
    • US06184265B2
    • 2001-02-06
    • US09362965
    • 1999-07-29
    • John V. HamiltonMary Beth SchmidtKeith Greer
    • John V. HamiltonMary Beth SchmidtKeith Greer
    • C08F246
    • A61L2/081A61L2/082A61L2/087A61L27/16C08L23/06C08L2207/068C08L2312/06Y10S422/903Y10S522/911Y10S522/912
    • Wear resistance and oxidation resistance of polymer material or a polymer component for bioimplantation are improved by packaging a polymer object in a sealed gas impermeable package substantially free of oxygen, irradiating the package with penetrating radiation to an extent sufficient to effect a desired substantial level of cross-linking within the polymer, and warming the packaged object while maintaining an elevated hydrostatic pressure to cause gases released during irradiation to recombine, stabilizing the material against subsequent oxidative change. The pressure stabilization terminates active sites, substantially eliminating free radicals. When applied to finished parts, the process simultaneously hardens and sterilizes the parts without degrading mechanical properties or dimensions. When applied to bulk material or unfinished parts, the part may be subsequent machined or otherwise finished, and sterilized by any conventional means. The procedure achieves high levels of cross linking without increasing susceptibility to aging or chemical degradation.
    • 聚合物材料或用于生物植入的聚合物组分的耐磨性和抗氧化性通过将聚合物物体包装在基本上不含氧的密封气体不可渗透的包装中,通过将穿透辐射照射到足以实现期望的相当程度的交叉 在聚合物内连接并加热包装物体,同时保持升高的静水压力以引起在照射期间释放的气体重组,使材料稳定化以防止随后的氧化变化。 压力稳定终止活性位点,基本上消除自由基。 当应用于成品时,该工艺同时硬化和消毒零件,而不会降低机械性能或尺寸。 当应用于散装材料或未完成的部件时,可以随后机械加工或以其他方式完成该部件,并且通过任何常规方法进行灭菌。 该程序实现高水平的交联,而不增加对老化或化学降解的易感性。
    • 2. 发明申请
    • SPINAL FLUID INTRODUCTION
    • 脊柱液介绍
    • US20100094229A1
    • 2010-04-15
    • US12632038
    • 2009-12-07
    • Nelson ScarboroughJohn V. HamiltonAndy H. UchidaRalph I. McNallSteven Lepke
    • Nelson ScarboroughJohn V. HamiltonAndy H. UchidaRalph I. McNallSteven Lepke
    • A61M5/315
    • A61M5/1456A61B17/3401A61B17/8822A61M5/16827A61M5/16854A61M2025/0007A61M2205/3331
    • A fluid introduction system includes an introducer configured to create a pressure of at least 69 kPa within a spine, and an operator configured to actuate the introducer to introduce fluid into the spine according to a predetermined fluid introduction profile. The system can include a computer readable medium having code for receiving fluid introduction data indicative of a fluid introduction parameter, and for receiving response data indicative of a response of the patient at a time related to a time of the fluid introduction data. A method for introducing fluid includes positioning a first introducer in a first portion of a spine, positioning a second introducer in a second, different portion of the spine and, without removing the first and second introducers, introducing fluid into the first portion of the spine with the first introducer and introducing fluid into the second portion of the spine with the second introducer.
    • 流体引入系统包括导引器,其构造成在脊柱内产生至少69kPa的压力,以及操作器,其配置成致动导引器以根据预定流体导入曲线将流体引入脊柱。 该系统可以包括具有用于接收指示流体引入参数的流体引入数据的代码的计算机可读介质,以及用于在与流体引入数据的时间相关的时间接收表示患者的响应的响应数据。 用于引入流体的方法包括将第一导引器定位在脊柱的第一部分中,将第二导引器定位在脊柱的第二不同部分中,并且不移除第一和第二导引器,将流体引入脊柱的第一部分 与第一导引器一起引入流体到第二引导器到脊柱的第二部分。