公开(公告)号：US20230157598A1

公开(公告)日：2023-05-25

申请号：US17531294

申请日：2021-11-19

申请人： Medtronic MiniMed, Inc.

发明人： Davy Tong ,  Anuj M. Patel ,  Sarnath Chattaraj ,  Hsi Fusselman ,  Chia-Hung Chiu ,  Timothy Kwa ,  Nor Akmaliza Rais ,  Michael Weikai Chang ,  Vijaykumar Raorane

IPC分类号： A61B5/1495 ,  G01N27/08 ,  G01N27/02 ,  G01N33/49 ,  A61B5/1477 ,  A61B5/145 ,  A61B5/0537 ,  A61B5/1473

CPC分类号： A61B5/1495 ,  G01N27/08 ,  G01N27/026 ,  G01N33/49 ,  A61B5/1477 ,  A61B5/14532 ,  A61B5/0537 ,  A61B5/1473

摘要： A method includes monitoring, via a device including an electrochemical cell, an electrical current that is proportional to an impedance of the electrochemical cell, and responsive to determining that the electrical current satisfies a threshold, measuring, via the device, a plurality of impedances of the electrochemical cell corresponding to a plurality of frequencies. The method further includes determining a charge transfer conductance and a solution resistance based on the plurality of impedances at fewer than four of the corresponding plurality of frequencies and determining the presence of electrochemical interference based on the solution resistance and the charge transfer conductance. The method further includes outputting an alert based on the determination of the presence of electrochemical interference.

公开(公告)号：US20240358282A1

公开(公告)日：2024-10-31

申请号：US18618694

申请日：2024-03-27

申请人： Medtronic MiniMed, Inc.

发明人： Nor Akmaliza Rais ,  Chia-Hung Chiu ,  Meredith Hannah Buganski ,  Aishwarya Mahadevan

IPC分类号： A61B5/145 ,  A61B5/1468 ,  A61M5/172

CPC分类号： A61B5/14532 ,  A61B5/1468 ,  A61M5/1723

摘要： A device includes a glucose monitor comprising at least one sensor electrode configured to sense signals indicative of interstitial glucose level of a patient. The device also includes a memory and one or more processors implemented in circuitry and in communication with the memory. The one or more processors are configured to cause delivery of a cleaning electrical current to the at least one sensor electrode. The cleaning electrical current is one or more electrochemical cleaning pulses configured to at least partially remove, in vivo and from the sensor electrode, excipients associated with the delivery of a fluid that includes insulin.