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    • 37. 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。
    • 39. 发明授权
    • Open core heat exchange catheter, system and method
    • 开放式核心换热导管,系统及方法
    • US06709448B2
    • 2004-03-23
    • US10120587
    • 2002-04-11
    • Blair D. WalkerWayne A. Noda
    • Blair D. WalkerWayne A. Noda
    • A61F700
    • A61F7/12A61F2007/126
    • A heat exchange catheter having an open core includes a catheter body for use in the central vasculature of a patient. The catheter body having a balloon with at least one heat exchange lumen for exchanging heat with flowing blood. The balloon inflates from a collapsed configuration to an inflated configuration. In the inflated configuration the balloon facilitates the flow of heat exchange fluid through the heat exchange lumen, which wraps in a helical pattern to define the open core and to enable blood to flow through the open core during use of the catheter. The open core defines an inside and an outside, the heat exchange lumen has non-contiguous helical winds to allow flowing blood to mix between the inside of the open core and the outside of the open core.
    • 具有开放芯的热交换导管包括用于患者中央脉管系统的导管体。 所述导管体具有气囊,所述气囊具有至少一个热交换腔,用于与流动的血液进行热交换。 气球从折叠构型膨胀到膨胀构型。 在膨胀构型中,球囊有助于热交换流体流过热交换腔,该热交换腔以螺旋形图案包裹以限定开放的芯并且在使用导管期间使血液能够流过开放的芯。 打开的芯限定内部和外部,热交换腔具有不连续的螺旋风,以允许流动的血液在开放的芯的内部和开放的芯的外部之间混合。