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    • 2. 发明申请
    • BLOOD PARAMETER SENSOR AND FLOW CONTROL SYSTEM, METHOD AND COMPUTER PROGRAM PRODUCT
    • 血液参数传感器和流量控制系统,方法和计算机程序产品
    • US20110319728A1
    • 2011-12-29
    • US12826542
    • 2010-06-29
    • James PetisceEmily JacksonGregory J. Carlin
    • James PetisceEmily JacksonGregory J. Carlin
    • A61B5/145
    • A61B5/14532A61B5/14503A61B5/6852A61M5/14A61M5/1407A61M5/16804A61M5/16827A61M5/16854
    • A system is provided for sensing a blood parameter, such as an analyte, in a patient's vasculature. The system includes a vascular access device, a parameter sensor, a pressure sensor and a flow control device. The vascular access device supports the parameter sensor within the vasculature of the patient and includes an internal passageway for drawing samples onto and calibrating the parameter sensor. The pressure sensor is within the internal passageway. The flow control device modulates sample draw, calibration and flushing fluid flows to prevent or remove clots based on communication with the pressure sensor. Advantageously, the dynamic, adaptive modulation of flow reduces flushing and other cycle times while at the same time improving clot flushing. As another advantage, this enables reduction or elimination of the use of heparin and other anticoagulant components in the solution supplied for flushing and/or calibration.
    • 提供一种用于感测患者脉管系统中的血液参数(例如分析物)的系统。 该系统包括血管通路装置,参数传感器,压力传感器和流量控制装置。 血管通路装置支撑患者脉管系统内的参数传感器,并且包括用于将样本抽样并校准参数传感器的内部通道。 压力传感器在内部通道内。 流量控制装置根据与压力传感器的通信调节样品抽吸,校准和冲洗流体流动,以防止或去除凝块。 有利的是,流动的动态自适应调节减少冲洗和其它循环时间,同时改善血块冲洗。 另一个优点是能够减少或消除在用于冲洗和/或校准的溶液中使用肝素和其它抗凝血剂成分。