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    • 6. 发明申请
    • HEART ASSIST SYSTEM AND METHODS
    • 心脏辅助系统和方法
    • US20150335801A1
    • 2015-11-26
    • US14715794
    • 2015-05-19
    • CircuLite, Inc.
    • Robert C. FarnanRobert G. HudginsJohn Dockter
    • A61M1/10A61M1/12
    • A61M1/1008A61M1/101A61M1/122
    • A system for drawing blood from a heart of a patient, includes a blood pump, an outflow cannula and a flexible cannula assembly. The cannula assembly further includes a flexible cannula body including a proximal end, a distal end, an inner wall defining a lumen, and an outer wall. A tip is coupled with the distal end of the cannula body, and an anchor is coupled to the tip. The anchor is configured to engage an internal structure of the heart and resists movement of the cannula assembly in at least one direction along the flexible cannula body. A ring member is configured to be coupled to the heart wall and is positioned at least partially around the outer wall of the cannula body proximally relative to the tip. The ring member is further configured to provide hemostasis between the heart wall and the cannula body.
    • 用于从患者的心脏抽取血液的系统包括血液泵,流出套管和柔性插管组件。 插管组件还包括柔性插管主体,其包括近端,远端,限定内腔的内壁和外壁。 尖端与套管主体的远端联接,并且锚固件联接到尖端。 锚固件构造成接合心脏的内部结构并抵抗插管组件沿着柔性套管主体的至少一个方向的移动。 环构件被配置为联接到心脏壁并且至少部分地围绕插管本体的外壁相对于尖端向近侧定位。 环构件进一步构造成在心脏壁和套管主体之间提供止血。