公开(公告)号：US20140180048A1

公开(公告)日：2014-06-26

申请号：US14134881

申请日：2013-12-19

Applicant: Becton, Dickinson and Company

Inventor： Steven Keith ,  Yongji Fu ,  Elaine McVey ,  Yiwen Zhang

IPC: A61B5/1495 ,  A61B5/00 ,  A61B5/1486 ,  A61B5/145

CPC classification number: A61B5/1495 ,  A61B5/14532 ,  A61B5/1486 ,  A61B5/7225 ,  A61B5/7282 ,  A61B5/746

Abstract: The present invention relates to a system and method for improving glucose sensor accuracy by utilizing multiple calibration methods and selecting the most accurate method depending on a consensus glucose concentration estimate. Embodiments of the present invention comprise the steps of performing at least one in vivo update of surrounding glucose to acquire glucose values; calculating multiple updated calibration estimates using the updated glucose values; calculating an initial consensus glucose estimate from sensor output using each updated calibration estimate; applying a smooth crossover function to the multiple calibration estimates based on the value of the initial consensus glucose estimate; and adding weights to the multiple calibration estimates to acquire a consensus glucose estimate.

Abstract translation: 本发明涉及一种通过利用多种校准方法来提高葡萄糖传感器精度的方法和方法，该系统和方法取决于一致的葡萄糖浓度估计来选择最准确的方法。 本发明的实施方案包括以下步骤：对周围葡萄糖进行至少一次体内更新以获得葡萄糖值; 使用更新的葡萄糖值计算多个更新的校准估计; 使用每个更新的校准估计来从传感器输出计算初始共有葡萄糖估计值; 基于初始共有葡萄糖估计值对多个校准估计应用平滑交叉函数; 并将多个校准估计值加权以获得一致的葡萄糖估计值。