公开(公告)号：US20230314340A1

公开(公告)日：2023-10-05

申请号：US17707241

申请日：2022-03-29

Applicant: Medtronic, Inc.

Inventor： Luling Wang ,  Anna M. Belle ,  Mohsen Askarinya ,  David A. Ruben ,  Omid Mahdavi ,  David A. Anderson ,  Shawn C. Kelley

IPC: G01N21/93 ,  A61B5/1495 ,  A61B5/145

CPC classification number: G01N21/93 ,  A61B5/14865 ,  A61B5/14532 ,  A61B5/1495

Abstract: An analyte sensor apparatus for detecting an analyte in a target environment includes a plurality of biotransducers and a controller. The plurality of biotransducers are configured to provide a baseline signal, one or more analyte signals, and at least one error condition signal. The plurality of biotransducers at least one reference biotransducer, one or more working biotransducers, and at least one working as reference biotransducer. The controller is operatively coupled to the plurality of biotransducers and is configured to receive the baseline signal, the one or more analyte signals, and the error correction signal. The controller is further configured to determine and/or output one or more adjusted analyte levels using the baseline signal, the one or more analyte signals, and the error correction signal.

公开(公告)号：US20240122505A1

公开(公告)日：2024-04-18

申请号：US17964863

申请日：2022-10-12

Applicant: Medtronic, Inc.

Inventor： Anna M. Belle ,  Mohsen Askarinya ,  Omid Mahdavi ,  Luling Wang

IPC: A61B5/145 ,  A61B5/1486

CPC classification number: A61B5/14546 ,  A61B5/14865

Abstract: An analyte sensor apparatus for detecting an analyte in a target environment includes a plurality of electrodes and a controller. The plurality of electrodes may be configured to provide a plurality of electrode signals based on a target environment. The plurality of electrodes may include one or more working electrodes, a first reference electrode, and a second reference electrode. The one or more working electrodes may be configured to provide an analyte signal based on a presence of an analyte in the target environment. The first reference electrode may be configured to provide a first baseline signal of the target environment. The second reference electrode may include a different type of electrode than the first reference electrode. The second reference electrode may be configured to provide a second baseline signal of the target environment. The controller may be operatively coupled to the plurality of electrodes.

公开(公告)号：US20240268721A1

公开(公告)日：2024-08-15

申请号：US18626074

申请日：2024-04-03

Applicant: Medtronic, Inc.

Inventor： Daniel Hahn ,  Akhil Srinivasan ,  Patrick W. Kinzie ,  Randal C. Schulhauser ,  Jennifer L. Marckmann ,  Mohsen Askarinya ,  James K. Carney ,  David L. Probst ,  Santhisagar Vaddiraju ,  Alejo Chavez Gaxiola ,  Richard J. O'Brien ,  Anna M. Tycon ,  Omid Mahdavi ,  Shawn C. Kelley ,  David A. Anderson

IPC: A61B5/1468 ,  A61B5/053 ,  A61B5/145 ,  A61B5/1486 ,  G01N27/30 ,  G01N27/327

CPC classification number: A61B5/1468 ,  A61B5/053 ,  A61B5/14532 ,  A61B5/14546 ,  A61B5/1486 ,  G01N27/301 ,  G01N27/3271

Abstract: Techniques are disclosed for measuring an analyte in a biological system. A system may include a medical device with an electrochemical sensor configured to sense the concentration of a plurality of analytes present in a biological system. Processing circuitry of the system may retrieve, identify, and process a respective signal from a respective work electrode to determine the concentration of a respective analyte. The system may further include an implantable medical device configured to sense a cardiac electrogram (EGM). In some examples, the system may be configured to determine one or more patient-specific relationships between the respective signals of the electrochemical sensor and the cardiac EGM during a first period of time. Based on the patient-specific relationships, the system may estimate concentrations of the one or more analytes corresponding to the respective signals based on the cardiac EGM of the patient collected over a second period of time.