会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 12. 发明申请
    • BLOOD PUMP SYSTEMS AND METHODS
    • 血液泵系统和方法
    • WO2014028787A2
    • 2014-02-20
    • PCT/US2013055221
    • 2013-08-15
    • NOVITA THERAPEUTICSFRANANO F NICHOLASLOREE II HOWARD MTANSLEY GEOFFWOODARD STEVEHUTTO BARRETT
    • FRANANO F NICHOLASLOREE II HOWARD MTANSLEY GEOFFWOODARD STEVEHUTTO BARRETT
    • A61M1/10
    • A61M1/3653A61M1/1008A61M1/101A61M1/1012A61M1/1013A61M1/1015A61M1/1017A61M1/1031A61M1/1086A61M1/12A61M1/122A61M1/3655A61M1/3659A61M2205/32A61M2205/3334A61M2205/3344
    • The present invention relates to a rotary blood pump with a double pivot contact bearing system with an operating range between about 50 mL/min and about 1500 mL/min, wherein the force on the upper bearing is less than 3N during operating speeds up to 6000 rpm. The rotary blood pump is part of a blood pump system that includes blood conduit(s), a control system with optional sensors, and a power source. Embodiments of the present invention may include elements designed to increase the length of time the rotary blood system can operate effectively in vivo, including wear resistant bearing materials, a rotor back plate for magnetic attraction of the rotor to reduce bearing pivot bearing forces and wear, a rotor size and shape and a bearing gap that combine to create a hydrodynamic bearing effect and reduce bearing pivot bearing forces and wear, improved intravascular conduits with increased resistance to thrombosis, conduit insertion site cuffs to resist infection, and conduit side ports amenable to the easy insertion of guidewire and catheter-based medical devices to treat conduits and related blood vessels to maintain blood pump system function over time. The pump system is configured to connect to the vascular system in a patient and pump blood at a desired rate. The invention also relates to a method of using a blood pump system for persistently increasing the overall diameter and lumen diameter of peripheral veins and arteries by persistently increasing the velocity of blood and the wall shear stress in a peripheral vein or artery for period of time sufficient to result in a persistent increase in the overall diameter and lumen diameter of the vessel is provided. For blood pump systems intended for use to increase the overall diameter and lumen diameter of a blood vessel, the pumping of blood is monitored and adjusted, as necessary, to maintain the desired elevated blood velocity and wall shear stress, and the desired pulsatility in the target blood vessel in order to optimize the rate and extent of the persistent increase in the overall diameter and lumen diameter of the target blood vessel. The blood pump system may also be used to reduce venous hypertension in a lower extremity and increasing the rate of healing of lower extremity venous ulcers in patients is provided. For blood pump systems intended for use to treat venous hypertension of an extremity, the pumping of blood is monitored and adjusted, as necessary, to maintain the desired venous blood pressure in the treated extremity.
    • 本发明涉及具有约50mL / min至约1500mL / min的操作范围的双重枢轴接触轴承系统的旋转式血液泵,其中在高达6000的操作速度下,上轴承上的力小于3N 转。 旋转式血液泵是血液泵系统的一部分,其包括血液导管,具有可选传感器的控制系统和电源。 本发明的实施例可以包括设计用于增加旋转血液系统在体内有效操作的时间长度的元件,包括耐磨轴承材料,用于转子磁吸引以减少轴承枢转轴承力和磨损的转子后板, 转子尺寸和形状以及轴承间隙,其组合以产生流体动力轴承效应并减少轴承枢转轴承力和磨损,改善的血管内管道具有增加的抗血栓形成,导管插入部位袖带以抵抗感染,以及导管侧端口适于 容易地插入导丝和基于导管的医疗装置来治疗导管和相关的血管以维持血液泵系统随时间的功能。 泵系统被配置为连接到患者中的血管系统并以期望的速率泵血。 本发明还涉及一种使用血液泵系统持续增加外周静脉和动脉的总直径和内腔直径的方法,其通过持续增加外周静脉或动脉中的血液速度和壁剪切应力足够长的时间 导致容器的总直径和管腔直径的持续增加。 对于旨在用于增加血管的总直径和管腔直径的血泵系统,根据需要监测和调节血液的泵送,以保持所需的升高的血液速度和壁剪切应力,以及所需的搏动 目标血管,以优化目标血管总直径和内腔直径持续增加的速度和程度。 血泵系统也可用于减少下肢静脉高血压,提高患者下肢静脉溃疡愈合率。 对于旨在用于治疗肢体静脉高血压的血液泵系统,根据需要监测和调整血液的抽吸,以在治疗的末端保持所需的静脉血压。