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    • 3. 发明授权
    • Method and device for transventricular mechanical circulatory support
    • 心室机械循环支持的方法和装置
    • US06790171B1
    • 2004-09-14
    • US09936224
    • 2002-03-01
    • Paul Frederik GründemanCornelis Wilhelmus Jozef VerlaanCornelius BorstHendricus Jacobus Mansvelt Beck
    • Paul Frederik GründemanCornelis Wilhelmus Jozef VerlaanCornelius BorstHendricus Jacobus Mansvelt Beck
    • A61N1362
    • A61M25/0023A61M1/1008A61M1/101A61M1/1024A61M1/1034A61M1/122A61M1/125A61M1/127A61M25/0043
    • Invention relates to a cannula and a screw pump for use in a mechanical circulatory support device, in particular a transventricular circulatory support device. The cannula according to the present invention comprises a tubular member made of a flexible, collapsible material having a diameter between 0.5 cm and 3 cm, preferably between 1 cm and 2.5 cm. The invention also relates to an inflatable screw pump for use in circulatory support system which comprises a flexible central drive shaft and an inflatable body having a free edge defining a spiral shaped contour around the central drive shaft and an inner edge connected to the drive shaft. The Archimedes type screw pump may be used in conjunction with the flexible cannula. The method of connecting the circulatory assist device to the heart comprises the steps of introducing the distal end of a cannula into a large systemic vein or into the right or left atrium, guiding the distal end of the cannula via the atrium to the inflow valve of the ventricle, and from there into the ventricle, guiding the distal end of the cannula from the ventricle to the ventricle outflow valve and from there into the pulmonary artery, the aorta or a side branch of the aorta and, connecting the proximal end of the cannula to a pump.
    • 本发明涉及一种用于机械循环支持装置,特别是脑室循环支持装置的套管和螺杆泵。 根据本发明的套管包括由柔性的可收缩材料制成的管状构件,其直径在0.5cm和3cm之间,优选在1cm和2.5cm之间。 本发明还涉及一种用于循环支持系统的可膨胀螺杆泵,其包括柔性中心驱动轴和具有围绕中心驱动轴限定螺旋形轮廓的自由边缘的可膨胀主体以及连接到驱动轴的内边缘。 阿基米德型螺杆泵可与柔性套管结合使用。 将循环辅助装置连接到心脏的方法包括以下步骤:将套管的远端引入大的全身静脉或右心房或左心房,将套管的远端经由心房引导到流入阀 心室,并且从那里进入心室,将套管的远端从心室引导到心室流出阀,并从那里进入肺动脉,主动脉或主动脉的侧支,并连接主动脉的近端 插管到泵。