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    • 4. 发明授权
    • Implantable heart assist system and method of applying same
    • 植入式心脏辅助系统及其应用方法
    • US06387037B1
    • 2002-05-14
    • US09470841
    • 1999-12-23
    • Steven F. BollingMorteza GharibGabriel AldeaMary Lynn GaddisAnthony J. Viole
    • Steven F. BollingMorteza GharibGabriel AldeaMary Lynn GaddisAnthony J. Viole
    • A61M110
    • A61M1/3621A61M1/10A61M1/1008A61M1/101A61M1/107A61M1/122A61M1/127A61M1/3655A61M25/0026A61M25/007
    • An extracardiac pumping system and method for using it supplement the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart. A battery powered pump may be implanted subcutaneously and attached to an inflow conduit fluidly coupled to a patient's femoral artery via a subcutaneous anastomosis connection. The pump draws blood from the inflow conduit and discharges it through an outflow conduit fluidly coupled to a second peripheral artery via another subcutaneous anastomosis connection. The battery may be charged extracorporeally and the pump may be operated in either a continuous or pulsatile fashion in synchronization with the patient's heart. The conduits can be housed in a multi-lumen catheter and a reservoir may be provided which fluidly communicates with the inflow conduits. An additional feature may keep blood traveling extracorporeally within the system at or near body temperature. The system is capable of adjusting outflow from the pump to optimize the mixing of red blood cells in the aorta and thereby enhance oxygen delivery to tissues by minimizing blood cell concentration in the center of the aorta.
    • 心外抽气系统及其使用方法补充患者的血液循环,包括心输出量,而不将其任何组分连接到患者的心脏。 电池供电的泵可以被皮下植入并附着到通过皮下吻合连接流体地联接到患者的股动脉的流入导管。 泵从流入管中抽取血液,并通过另外的皮下吻合连接通过流体连接到第二外周动脉的流出管排出。 电池可以体外充电,并且泵可以以与患者心脏同步的连续或脉动方式操作。 导管可以容纳在多腔导管中,并且可以设置与流入管道流体连通的储存器。 额外的特征可以使血液在体温或体温附近体外流动到体内。 该系统能够调节泵的流出,以优化主动脉中红细胞的混合,从而通过使主动脉中心的血细胞浓度最小化来增强对组织的氧输送。