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    • 32. 发明授权
    • Vascular catheter
    • 血管导管
    • US4808158A
    • 1989-02-28
    • US143255
    • 1988-01-04
    • Rudolf KreuzerWayne A. NodaFriedemann StockertPaul F. Zupkas
    • Rudolf KreuzerWayne A. NodaFriedemann StockertPaul F. Zupkas
    • A61M39/00A61M1/00A61M25/00A61M31/00
    • A61M25/007A61M25/00A61M2025/0018Y10S128/03
    • A vascular catheter for cannulating arterial or venous vessels, for example in the fermoral region, or the vena cava and/or the right auricle of the heart, comprises a flexible tube having blood passage orifices in the nature of holes at its anterior and insertion end to be inserted in the vessel or the auricle, which tube is directly or indirectly connectable at its other open end to a conduit or appliance. A piston-like closure member is movable to and fro in the tube in lengthwise direction thereof, such that it covers and thereby closes at least same of the blood passsage orifices in one position in the tube and clears these orifices in other positions. Preferably, the closure member is so fashioned that in its closure position, it covers all blood passage orifices in the insertion end of the cathether tube.
    • 用于插管动脉或静脉血管的血管导管,例如在Fermoral区域,或心腔的腔静脉和/或右耳廓中,包括柔性管,其具有在其前部和插入端的孔的性质的血液通道孔 插入容器或耳廓中,该管在其另一开口端直接或间接连接到导管或器具。 活塞式封闭构件在管子的长度方向上来回移动,使得其覆盖并因此封闭管中一个位置中的至少相同的血液通过孔,并在其它位置清除这些孔。 优选地,闭合构件是这样的,使得在其封闭位置,其覆盖导管管插入端中的所有血液通道孔口。
    • 40. 发明授权
    • Intravascular catheter with heat exchange element having inner inflation element and methods of use
    • 具有内部充气元件的热交换元件和使用方法的血管内导管
    • US06716236B1
    • 2004-04-06
    • US10045936
    • 2001-10-19
    • Elbert TzengPeter BarkerScott M. EvansWayne A. Noda
    • Elbert TzengPeter BarkerScott M. EvansWayne A. Noda
    • A61F700
    • A61F7/12A61M25/1011
    • An intravenous catheter system (apparatus and method) for controlling patient temperature includes a generally tubular elongate body, a heat exchange element through which a heat exchange fluid circulates, and an inflation element or irregular surface positioned within the heat exchange element for promoting mixing of the circulating heat exchange fluid. The heat exchange element and inflation element preferably include inflatable balloons. The catheter preferably has two to four balloons having a substantially straight configuration, each balloon containing an inner balloon inflation element having a substantially spiral configuration. The catheter also preferably has at least one infusion lumen for providing access to the patient's blood and a guidewire lumen to accommodate a guidewire. The catheter is used in conjunction with a heat/cool system to cool a hyperthermic patient as quickly as possible, to warm a hypothermic patient as quickly as possible or to maintain normothermia.
    • 用于控制患者体温的静脉内导管系统(装置和方法)包括大致管状的细长体,热交换流体循环通过的热交换元件和位于热交换元件内的充气元件或不规则表面,用于促进 循环热交换流体。 热交换元件和充气元件优选地包括可充气气球。 导管优选地具有两至四个具有基本上直的构造的气囊,每个球囊包含具有基本上螺旋形构造的内球囊膨胀元件。 导管还优选地具有至少一个用于提供对患者血液的通路和用于容纳导丝的导丝管腔的输液腔。 导管与热/冷系统一起使用以尽可能快地冷却高热患者,以尽可能快地温热低温患者或维持正常体温。