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    • 1. 发明授权
    • Internal combustion engine
    • 内燃机
    • US08910613B2
    • 2014-12-16
    • US14212878
    • 2014-03-14
    • Kurt Amplatz
    • Kurt Amplatz
    • F02B41/00F02B75/02F02B19/16
    • F02B19/16Y02T10/125
    • An internal combustion engine is described that includes an expansion cylinder adjacent to a first combustion cylinder (or power cylinder). Combustion gases from the first cylinder are directed to the expansion cylinder to act on the piston in the expansion cylinder. The expansion cylinder has a larger bore (i.e. larger diameter piston) and/or a longer stroke than the first cylinder. The longer stroke also results in a much larger crankshaft arm resulting in a significantly improved mechanical advantage (i.e. torque). In addition, the expansion cylinder includes a check valve that is designed to automatically open the expansion chamber to atmosphere if a negative pressure develops due to the varying amount of exhaust gases at different speeds. In one embodiment, two power cylinders can be connected to one expansion cylinder.
    • 描述了一种内燃机,其包括与第一燃烧气缸(或动力气缸)相邻的膨胀气缸。 来自第一气缸的燃烧气体被引导到膨胀气缸以作用在膨胀气缸中的活塞上。 膨胀缸具有比第一气缸更大的孔(即更大直径的活塞)和/或更长的冲程。 较长的行程也会导致更大的曲轴臂导致显着改善的机械优点(即扭矩)。 此外,膨胀气缸包括止回阀,该止回阀被设计成如果由于不同速度的废气的变化量而产生负压,则自动将膨胀室打开到大气中。 在一个实施例中,两个动力缸可以连接到一个膨胀缸。
    • 3. 发明授权
    • Intravascular deliverable stent for reinforcement of vascular abnormalities
    • 血管内输送支架用于加强血管异常
    • US08778008B2
    • 2014-07-15
    • US11654288
    • 2007-01-17
    • Kurt AmplatzJohn C. OslundPatrick RussoXiaoping Gu
    • Kurt AmplatzJohn C. OslundPatrick RussoXiaoping Gu
    • A61F2/06A61F2/82A61F2/852
    • A61F2/82A61F2/07A61F2/852A61F2/90A61F2002/075A61F2002/823A61F2210/0014A61F2210/0076A61F2220/0008A61F2220/0041A61F2220/0075A61F2250/0015A61F2250/0023A61F2250/0037
    • A catheter deliverable stent/graft especially designed to be used in a minimally invasive surgical procedure for treating a variety of vascular conditions such as aneurysms, stenotic lesions and saphenous vein grafts, comprises an innermost tubular structure and at least one further tubular member in coaxial arrangement. In one embodiment, the innermost tubular structure is of a length (L1) and is formed by braiding a relatively few strands of highly elastic metallic alloy. The pick and pitch of the braid are such as to provide relative large fenestrations in the tubular wall that permit blood flow through the wall and provide the primary radial support structure. A portion of the innermost tubular structure of a length L1 is surrounded by a further braided tubular structure having relatively many strands that substantially inhibit blood flow through the fenestrations of the innermost tubular structure. The composite structure can be stretched to reduce the outer diameter of the stent/graft, allowing it to be drawn into a lumen of a delivery catheter. The catheter can then be advanced through the vascular system to the site of treatment and then released, allowing it to self-expand against the vessel wall. Various optional embodiments are disclosed that allow one skilled in the art to tailor the design to the specific application.
    • 特别设计用于治疗各种血管病变如动脉瘤,狭窄病变和隐静脉移植物的微创外科手术中的导管可输送支架/移植物包括最内管状结构和至少一个同轴布置的另外的管状构件 。 在一个实施例中,最内管状结构具有长度(L1),并且通过编织相对较少数量的高弹性金属合金而形成。 编织物的拣选和间距是在管状壁中提供允许血液流过壁并提供初级径向支撑结构的相对较大的开窗。 长度为L1的最内管状结构的一部分由具有相当多的股线的进一步的编织管状结构包围,其基本上抑制通过最内管状结构的开窗的血液流动。 复合结构可被拉伸以减小支架/移植物的外径,使其能够被拉入输送导管的内腔。 导管然后可以通过血管系统前进到治疗部位,然后释放,允许其自我扩张抵靠血管壁。 公开了各种可选实施例,其允许本领域技术人员根据具体应用来定制设计。