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    Medical introducer and valve assembly
    3.
    发明授权
    Medical introducer and valve assembly 失效
    医疗导引器和阀组件

    公开(公告)号：US5098393A

    公开(公告)日：1992-03-24

    申请号：US200662

    申请日：1988-05-31

    申请人： Kurt Amplatz ,  Frank Kotula

    发明人： Kurt Amplatz ,  Frank Kotula

    IPC分类号： A61M25/06 ,  A61M39/06

    CPC分类号： A61M25/0606 ,  A61M39/0606 ,  A61M2025/0687 ,  A61M2039/062 ,  A61M2039/0633 ,  A61M2039/0686

    摘要： A medical catheter introducer and hemostasis valve assembly consists of a sheath having an elongated tube defining a conduit, a housing disposed at the proximal end of the sheath and further defining a conduit and an orifice, and a flexible elongated dilator sized for insertion through the hub and sheath conduit. The dilator has a tapered distal tip end and defines an axial conduit and an annular ridge having distally- and proximally-directed inclined surfaces. The sheath, when assembled with the dilator, has its distal end immediately adjacent the proximally-directed inclined surface of the ridge. A hemostasis valve for sealing the conduit is disposed in alignment with the conduit, and defines an aperture for passage of dilator and ridge therethrough in sealing engagement, into the conduit, and seals when the dilator is removed. The valve has a housing defining an orifice of a first diameter, and a valve element of a second diameter, greater than the first diameter. The valve is disposed within the orifice and is subject to externally-applied, radially directed forces that cause the valve to assume a dome-shape formation, with a convex surface disposed against the pressure of fluids within the body. As the introducer assembly is introduced into a body over a guidewire extending via a puncture opening into a vessel, the dilator and sheath flex to follow the guidewire, and the tapered end of the dilator and the distally-directed inclined surface of the ridge act to dilate the flesh about the opening to facilitate passage of the sheath. The introducer and valve may be used alone, or respectively with valves or introducers of other design. A base for attachment of the introducer to the patient is also described.

    摘要翻译： 医疗导管导引器和止血阀组件包括具有限定导管的细长管的护套，设置在护套的近端处并进一步限定导管和孔的壳体，以及尺寸适于插入穿过毂的柔性细长扩张器 和鞘导管。 扩张器具有锥形的远端尖端并且限定轴向导管和具有远侧和近侧定向的倾斜表面的环形脊。 当与扩张器组装时，护套的远端紧邻脊的向近侧倾斜的表面。 用于密封导管的止血阀设置成与管道对准，并且在密封接合时限定了用于使膨胀器和脊通过的孔，用于密封接合，并且当扩张器被移除时密封。 阀具有限定第一直径的孔的壳体和大于第一直径的第二直径的阀元件。 阀设置在孔内并且受到外部施加的径向力的作用，使得阀呈现穹顶形状，其中凸表面抵抗体内流体的压力设置。 当导引器组件被引入到穿过穿刺孔延伸到血管中的导丝上的主体中时，扩张器和皮肤弯曲以跟随导丝，并且扩张器的锥形端和脊的远侧倾斜的表面作用到 扩大围绕开口的肉体，以方便鞘的通过。 导引器和阀可以单独使用，也可以分别用于其他设计的阀门或导引器。 还描述了用于将导引器附接到患者的基部。

    Device and method for fluoroscope-monitored percutaneous puncture treatment
    4.
    发明授权
    Device and method for fluoroscope-monitored percutaneous puncture treatment 失效
    荧光透视监测经皮穿刺治疗的装置和方法

    公开(公告)号：US4485815A

    公开(公告)日：1984-12-04

    申请号：US412594

    申请日：1982-08-30

    申请人： Kurt Amplatz ,  Frank Kotula

    发明人： Kurt Amplatz ,  Frank Kotula

    IPC分类号： A61B17/34 ,  A61B19/00

    CPC分类号： A61B17/3403 ,  A61B2017/00902 ,  A61B90/39

    摘要： A device for performing percutaneous puncture treatment of a patient includes an elongate radiolucent plastic handle with a central portion and two opposite elongated end portions. A hollow radiopaque needle has a hub at its proximal end which is releasably mounted in the central portion of the handle so that the needle is perpendicular to an axis through the end portions. The distal end of the needle has a puncturing tip. An internal fluid passage in the needle is open to the tip and the hub so that fluid may be drained from a patient's body through the passage when the needle is inserted in the patient's body. The needle and central portion of the handle are aligned under a field of view of a fluoroscope. The handle is held by the grips which are outside of the field of view of the fluoroscope. While the doctor continuously monitors progress of the needle on the fluoroscope, the puncturing tip is inserted through the skin and moved to an internal location for aspiration of fluid. Medical personnel are safely outside of the field of view of the fluoroscope during the entire process.

    摘要翻译： 用于对患者进行经皮穿刺治疗的装置包括具有中心部分和两个相对的细长端部的细长的射线可透过塑料手柄。 中空的不透射线针在其近端具有轮毂，其可释放地安装在手柄的中心部分中，使得针通过端部垂直于轴线。 针的远端具有穿刺尖端。 针中的内部流体通道对尖端和轮毂开放，使得当针插入患者体内时，流体可以从患者的身体通过通道排出。 手柄的针头和中心部分在荧光镜的视野下对齐。 手柄由位于荧光镜视野外的把手握持。 当医生连续监测荧光镜上针的进展时，穿刺尖端插入穿过皮肤并移动到内部位置以抽吸流体。 在整个过程中，医务人员安全地离开荧光镜的视野。

    Snare-type probe
    5.
    发明授权
    Snare-type probe 失效
    圈型探头

    公开(公告)号：US5171233A

    公开(公告)日：1992-12-15

    申请号：US514137

    申请日：1990-04-25

    申请人： Kurt Amplatz ,  Frank Kotula ,  Rudy A. Mazzocchi

    发明人： Kurt Amplatz ,  Frank Kotula ,  Rudy A. Mazzocchi

    IPC分类号： A61B17/22 ,  A61B17/32 ,  A61F2/00

    CPC分类号： A61B17/32056 ,  A61B17/221 ,  A61F2002/30093 ,  A61F2210/0019 ,  A61M2205/0266

    摘要： The present invention provides a snare for intravascular use having an elongate proximal member and a loop-shaped distal segment oriented at an angle to the adjacent portion of the proximal member. The snare may be formed of a superelastic shape memory alloy, which permits the distal segment to be collapsed for passage through a catheter and yet automatically open into its original, unrestrained configuration upon emerging from the distal tip of the catheter.

    摘要翻译： 本发明提供了一种用于血管内使用的圈套，其具有细长的近端构件和与近端构件的相邻部分成一定角度定向的环形远端区段。 网圈可以由超弹性形状记忆合金形成，其允许远端片段被折叠以通过导管，并且当从导管的远侧末端出现时自动地打开到其原始的无限制配置。

    Combined needle and dilator apparatus
    6.
    发明授权
    Combined needle and dilator apparatus 失效
    组合针和扩张器

    公开(公告)号：US4995866A

    公开(公告)日：1991-02-26

    申请号：US451093

    申请日：1989-12-15

    申请人： Kurt Amplatz ,  Frank Kotula

    发明人： Kurt Amplatz ,  Frank Kotula

    IPC分类号： A61M5/32 ,  A61M25/06

    CPC分类号： A61M25/0606 ,  A61M5/3286 ,  A61M2025/0687

    摘要： The present invention provides a combined needle and dilator comprising a needle having a head with an outer diameter greater than the outer diameter of the body of the needle and a dilating sheath carried about the needle and abutting the rearward needle portion of the needle head. The dilating sheath has a front portion with an outer diameter substantially equal to the outer diameter of the needle head to define, with the head, a generally smooth surface; a body portion with an outer diameter greater than that of the front portion; and a tapered portion disposed between the front and body portions. The tapered portion has an outer surface smoothly merging into the outer surfaces of the front portion and the body portion.

    摘要翻译： 本发明提供了一种组合的针和扩张器，其包括具有头部的针头，所述针头的外径大于所述针体的外径，并且所述扩张鞘围绕所述针头承载并抵靠所述针头的后针部分。 扩张鞘具有前部，其外径基本上等于针头的外径，以与头部一起限定大致光滑的表面; 主体部分，其外径大于前部部分的外径; 以及设置在前部和主体部分之间的锥形部分。 锥形部分具有平滑地融合到前部和主体部分的外表面中的外表面。

    Internal combustion engine
    7.
    发明授权
    Internal combustion engine 有权
    内燃机

    公开(公告)号：US08910613B2

    公开(公告)日：2014-12-16

    申请号：US14212878

    申请日：2014-03-14

    申请人： Kurt Amplatz

    发明人： Kurt Amplatz

    IPC分类号： F02B41/00 ,  F02B75/02 ,  F02B19/16

    CPC分类号： F02B19/16 ,  Y02T10/125

    摘要： 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.

    摘要翻译： 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。

    Intravascular deliverable stent for reinforcement of vascular abnormalities
    9.
    发明授权
    Intravascular deliverable stent for reinforcement of vascular abnormalities 有权
    血管内输送支架用于加强血管异常

    公开(公告)号：US08778008B2

    公开(公告)日：2014-07-15

    申请号：US11654288

    申请日：2007-01-17

    申请人： Kurt Amplatz ,  John C. Oslund ,  Patrick Russo ,  Xiaoping Gu

    发明人： Kurt Amplatz ,  John C. Oslund ,  Patrick Russo ,  Xiaoping Gu

    IPC分类号： A61F2/06 ,  A61F2/82 ,  A61F2/852

    CPC分类号： A61F2/82 ,  A61F2/07 ,  A61F2/852 ,  A61F2/90 ,  A61F2002/075 ,  A61F2002/823 ,  A61F2210/0014 ,  A61F2210/0076 ,  A61F2220/0008 ,  A61F2220/0041 ,  A61F2220/0075 ,  A61F2250/0015 ,  A61F2250/0023 ,  A61F2250/0037

    摘要： 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.

    摘要翻译： 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。