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    • 7. 发明授权
    • Intra-aortic renal drug delivery catheter
    • 主动脉内肾脏药物输送导管
    • US07122019B1
    • 2006-10-17
    • US09724691
    • 2000-11-28
    • Randy J. KestenMichael H. RosenthalSam G. PayneAndrew K. KramerSophia Pesotchinsky
    • Randy J. KestenMichael H. RosenthalSam G. PayneAndrew K. KramerSophia Pesotchinsky
    • A61M31/00A61M29/00A61M37/00A61N1/362
    • A61M25/10A61M2025/0037
    • A catheter for delivering a therapeutic or diagnostic agent to a branch blood vessel of a major blood vessel, generally comprising an elongated shaft having at least one lumen in fluid communication with an agent delivery port in a distal section of the shaft, an expandable tubular member on the distal section of the shaft, and a radially expandable member on the tubular member. The tubular member is configured to extend within the blood vessel up-stream and down-stream of a branch vessel, and has an interior passageway which is radially expandable within the blood vessel to separate blood flow through the blood vessel into an outer blood flow stream exterior to the tubular member and an inner blood flow stream within the interior passageway of the tubular member. The radially expandable member is located down-stream of the shaft agent delivery port, and has an expanded configuration with an outer diameter larger than an outer diameter of the tubular member. The expanded radially expandable member is configured to decrease the blood flow in the outer blood flow stream down-stream of the branch vessel. The catheter provides for delivery of an agent to a branch vessel of a major vessel, and continuous perfusion of the major blood vessel. Another aspect of the invention is directed to methods of delivering a therapeutic or diagnostic agent to one or both kidney's of a patient.
    • 一种用于将治疗剂或诊断剂递送到主要血管的分支血管的导管,通常包括细长轴,所述细长轴具有与所述轴的远端部分中的药剂输送端口流体连通的至少一个内腔, 在所述轴的远侧部分上,以及在所述管状构件上的径向可扩张构件。 管状构件构造成在分支容器的上游和下游的血管内延伸,并且具有在血管内可径向扩张的内部通道,以将通过血管的血液分离成外部血流 管状构件的外部和管状构件的内部通道内的内部血流。 径向可膨胀构件位于轴剂输送口的下游,并且具有外径大于管状构件的外径的膨胀构型。 扩张的可径向扩张的构件被配置为减小分支容器下游的外部血液流中的血流。 导管提供将药剂递送到主血管的分支血管,并连续灌注主血管。 本发明的另一方面涉及将治疗剂或诊断剂递送到患者的一种或两种肾脏的方法。