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    Toposcopic access and delivery devices
    87.
    发明授权
    Toposcopic access and delivery devices 有权
    地面检查和传送设备

    公开(公告)号：US08118774B2

    公开(公告)日：2012-02-21

    申请号：US11861156

    申请日：2007-09-25

    Applicant: Mitchell Dann ,  Greg Fluet ,  James Wright

    Inventor： Mitchell Dann ,  Greg Fluet ,  James Wright

    IPC: A61M31/00

    CPC classification number: A61F5/0076 ,  A61F5/0089 ,  A61M25/0074 ,  A61M25/0119 ,  A61M25/0147 ,  A61M25/09041 ,  A61M2025/0024 ,  A61M2025/0079 ,  A61M2025/0681

    Abstract: Disclosed herein are elongate flexible medical devices which are capable of axial elongation through the mechanism of eversion or toposcopic expansion. In general, this may be accomplished by providing a flexible tubular device having a proximal end and a distal end. Retraction of the distal end in a proximal direction through the tubular body inverts the tube upon itself, causing an axial shortening of the overall length of the device. The original length of the device can be restored by coupling a pressurized media to the proximal end of the sleeve. If the distal end of the sleeve is temporarily restricted or closed, the pressurized media causes the distal end of the sleeve to travel distally until the full length of the sleeve has been restored.

    Abstract translation: 本文公开了伸长的柔性医疗装置，其能够通过外翻或胃肠镜扩张的机制轴向伸长。 通常，这可以通过提供具有近端和远端的柔性管状装置来实现。 远端在近端方向通过管状体的缩回使管自身反转，导致装置的整个长度的轴向缩短。 可以通过将加压介质连接到套筒的近端来恢复装置的原始长度。 如果套筒的远端被暂时限制或关闭，则加压介质使得套筒的远端向远侧行进直到套筒的整个长度恢复。

    Martensitic stainless steel strengthened by Ni3Ti η-phase precipitation
    90.
    发明授权
    Martensitic stainless steel strengthened by Ni3Ti η-phase precipitation 有权
    通过Ni3Ti和相变析出强化马氏体不锈钢

    公开(公告)号：US07879159B2

    公开(公告)日：2011-02-01

    申请号：US11814780

    申请日：2006-01-25

    Applicant: James Wright ,  Jin-Won Jung

    Inventor： James Wright ,  Jin-Won Jung

    IPC: C22C38/50 ,  C22C38/52 ,  C22C38/44

    CPC classification number: C22C38/004 ,  C21D6/004 ,  C21D6/007 ,  C21D2211/008 ,  C22C38/06 ,  C22C38/44 ,  C22C38/50 ,  C22C38/52

    Abstract: A precipitation-hardened stainless maraging steel which exhibits a combination of strength, toughness, and corrosion resistance comprises by weight about: 8 to 15% chromium (Cr), 2 to 15% cobalt (Co), 7 to 14% nickel (Ni), and up to about 0.7% aluminum (Al), less than about 0.4% copper (Cu), 0.5 to 2.6% molybdenum (Mo), 0.4 to less than about 0.75% titanium (Ti), up to about 0.5% tungsten (W), and up to about 120 wppm carbon (C), the balance essentially iron (Fe) and incidental elements and impurities, characterized in that the alloy has predominantly lath martensite microstructure essentially without topologically close packed intermetallic phases and strengthened primarily by a dispersion of intermetallic particles primarily of the eta-Ni3Ti phase and wherein the titanium and carbon (Ti) and (C) levels are controlled such that C can be dissolved during a homogenization step and subsequently precipitated during forging to provide a grain-pinnning dispersion.

    Abstract translation: 表现出强度，韧性和耐腐蚀性的组合的沉淀硬化的不锈钢马氏体时效钢包含约8〜15％的铬（Cr），2〜15％的钴（Co），7〜14％的镍（Ni） ，高达约0.7％的铝（Al），小于约0.4％的铜（Cu），0.5至2.6％的钼（Mo），0.4至小于约0.75％的钛（Ti），至多约0.5％的钨 W）和高达约120wppm的碳（C），余量基本上是铁（Fe）和附带的元素和杂质，其特征在于该合金主要具有板条马氏体组织，基本上没有拓扑密实的金属间相，并且主要由分散体 主要由eta-Ni3Ti相组成的金属间化合物颗粒，其中控制钛和碳（Ti）和（C）的含量，使C在均匀化步骤中可以溶解，随后在锻造期间沉淀，从而提供颗粒沉淀分散体。

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