公开(公告)号：US09885684B2

公开(公告)日：2018-02-06

申请号：US14055155

申请日：2013-10-16

Applicant: MEDTRONIC MINIMED, INC.

Inventor： Rajiv Shah ,  Wayne A. Morgan ,  David Y. Choy ,  James L. Henke ,  Bahar Reghabi ,  Gopikrishnan Soundararajan ,  Peter Schultz ,  Udo Hoss

IPC: A61B5/00 ,  G01N27/403 ,  A61B5/145 ,  G01N27/327 ,  G01N27/416 ,  A61B5/1473 ,  C12Q1/00

CPC classification number: G01N27/403 ,  A61B5/14532 ,  A61B5/1473 ,  A61B2560/0223 ,  A61B2562/02 ,  C12Q1/006 ,  G01N27/327 ,  G01N27/416

Abstract: A sensor system includes a sensor and a sensor electronics device. The sensor includes a plurality of electrodes. The sensor electronics device includes a connection detection device, a power source, and a delay circuit. The connection detection device determines if the sensor electronics device is connected to the sensor and transmits a connection signal. The delay circuit receives the connection signal, waits a preset hydration time, and couples the regulated voltage from the power source to an electrode in the sensor after the preset hydration time has elapsed. Alternatively, the sensor electronics device may include an electrical detection circuit and a microcontroller. The electrical detection circuit determines if the plurality of electrodes are hydrated and generates an interrupt if the electrodes are hydrated. A microcontroller receives the interrupt and transmits a signal representative of a voltage to an electrode of the plurality of electrodes.

公开(公告)号：US09835580B2

公开(公告)日：2017-12-05

申请号：US14050231

申请日：2013-10-09

Applicant: MEDTRONIC MINIMED, INC.

Inventor： Rajiv Shah ,  Wayne A. Morgan ,  David Y. Choy ,  James L. Henke ,  Bahar Reghabi ,  Gopikrishnan Soundararajan ,  Peter Schultz ,  Udo Hoss

IPC: A61B5/00 ,  G01N27/403 ,  A61B5/145 ,  G01N27/327 ,  G01N27/416 ,  A61B5/1473 ,  C12Q1/00

CPC classification number: G01N27/403 ,  A61B5/14532 ,  A61B5/1473 ,  A61B2560/0223 ,  A61B2562/02 ,  C12Q1/006 ,  G01N27/327 ,  G01N27/416

Abstract: A sensor system includes a sensor and a sensor electronics device. The sensor includes a plurality of electrodes. The sensor electronics device includes a connection detection device, a power source, and a delay circuit. The connection detection device determines if the sensor electronics device is connected to the sensor and transmits a connection signal. The delay circuit receives the connection signal, waits a preset hydration time, and couples the regulated voltage from the power source to an electrode in the sensor after the preset hydration time has elapsed. Alternatively, the sensor electronics device may include an electrical detection circuit and a microcontroller. The electrical detection circuit determines if the plurality of electrodes are hydrated and generates an interrupt if the electrodes are hydrated. A microcontroller receives the interrupt and transmits a signal representative of a voltage to an electrode of the plurality of electrodes.

公开(公告)号：US20130334040A1

公开(公告)日：2013-12-19

申请号：US13964591

申请日：2013-08-12

Applicant: MEDTRONIC MINIMED, INC.

Inventor： Rajiv Shah ,  Wayne A. Morgan ,  David Y. Choy ,  James L. Henke ,  Bahar Reghabi ,  Gopikrishnan Soundararajan ,  Peter Schultz ,  Udo Hoss

IPC: G01N27/327

CPC classification number: G01N27/403 ,  A61B5/14532 ,  A61B5/1473 ,  A61B2560/0223 ,  A61B2562/02 ,  C12Q1/006 ,  G01N27/327 ,  G01N27/416

Abstract: A sensor system includes a sensor and a sensor electronics device. The sensor includes a plurality of electrodes. The sensor electronics device includes a connection detection device, a power source, and a delay circuit. The connection detection device determines if the sensor electronics device is connected to the sensor and transmits a connection signal. The delay circuit receives the connection signal, waits a preset hydration time, and couples the regulated voltage from the power source to an electrode in the sensor after the preset hydration time has elapsed. Alternatively, the sensor electronics device may include an electrical detection circuit and a microcontroller. The electrical detection circuit determines if the plurality of electrodes are hydrated and generates an interrupt if the electrodes are hydrated. A microcontroller receives the interrupt and transmits a signal representative of a voltage to an electrode of the plurality of electrodes.

Abstract translation: 传感器系统包括传感器和传感器电子设备。 传感器包括多个电极。 传感器电子设备包括连接检测装置，电源和延迟电路。 连接检测装置确定传感器电子设备是否连接到传感器并发送连接信号。 延迟电路接收连接信号，等待预设的水合时间，并且在经过预设水合时间之后将调节的电压从电源耦合到传感器中的电极。 或者，传感器电子设备可以包括电检测电路和微控制器。 电检测电路确定多个电极是否水合，并且如果电极是水合的则产生中断。 微控制器接收中断，并将代表电压的信号传送到多个电极的电极。

公开(公告)号：US20130331674A1

公开(公告)日：2013-12-12

申请号：US13778630

申请日：2013-02-27

Applicant: MEDTRONIC MINIMED, INC.

Inventor： Ning Yang ,  Raghavendhar Gautham ,  Bradley C. Liang ,  Rajiv Shah ,  Catherine M. Szyman ,  Michael E. Miller ,  Jenn-Hann Larry Wang ,  Yiwen Li ,  Wayne A. Morgan ,  Paris Chen ,  Robert C. Mucic ,  Genival D. de Barros ,  Carlos A. Callirgos ,  Manjunath Sirigiri ,  Joseph Paul Brinson

IPC: G01R35/00 ,  A61B5/145

CPC classification number: A61B5/1495 ,  A61B5/0537 ,  A61B5/0538 ,  A61B5/14503 ,  A61B5/14532 ,  A61B5/1459 ,  A61B5/1473 ,  A61B5/14865 ,  A61B5/4839 ,  A61B5/6849 ,  A61B5/6852 ,  A61B5/7203 ,  A61B5/7221 ,  A61B5/7225 ,  A61B5/7242 ,  A61B5/746 ,  A61B2562/0214 ,  A61B2562/04 ,  A61M5/14244 ,  A61M5/14276 ,  A61M5/1582 ,  A61M5/1723 ,  A61M2005/1726 ,  G01N27/026 ,  G01N27/028 ,  G01N27/416 ,  G01N27/4163 ,  G01N33/49 ,  G01N33/66 ,  G01N33/96 ,  G01R35/00 ,  G01R35/005

Abstract: A diagnostic Electrochemical Impedance Spectroscopy (EIS) procedure is applied to measure values of impedance-related parameters for one or more sensing electrodes. The parameters may include real impedance, imaginary impedance, impedance magnitude, and/or phase angle. The measured values of the impedance-related parameters are then used in performing sensor diagnostics, calculating a highly-reliable fused sensor glucose value based on signals from a plurality of redundant sensing electrodes, calibrating sensors, detecting interferents within close proximity of one or more sensing electrodes, and testing surface area characteristics of electroplated electrodes. Advantageously, impedance-related parameters can be defined that are substantially glucose-independent over specific ranges of frequencies. An Application Specific Integrated Circuit (ASIC) enables implementation of the EIS-based diagnostics, fusion algorithms, and other processes based on measurement of EIS-based parameters.