Patents Assigned to Medtronic Minimed, Inc.
  • Patent number: 11220735
    Abstract: A method of depositing of a film on a substrate with controlled adhesion. The method comprises depositing the film including metal, wherein the metal is deposited on the substrate using physical vapor deposition at a pressure that achieves a pre-determined adhesion of the film to the substrate. The pre-determined adhesion allows processing of the film into a device while the film is adhered to the substrate but also allows removal of the device from the substrate.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: January 11, 2022
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: Akhil Srinivasan, Yifei Wang
  • Publication number: 20220000401
    Abstract: Embodiments of the invention provide compositions useful in analyte sensors as well as methods for making and using such compositions and sensors. In typical embodiments of the invention, the sensor is a glucose sensor comprising an analyte modulating membrane formed from a polymeric reaction mixture formed to include limiting amounts of catalyst and/or polycarbonate compounds so as to provide such membranes with improved material properties such as enhanced thermal and hydrolytic stability.
    Type: Application
    Filed: September 17, 2021
    Publication date: January 6, 2022
    Applicant: Medtronic MiniMed, Inc.
    Inventors: Jenn-Hann Larry Wang, Dero Hovanes, Poonam S. Gulati
  • Patent number: 11213230
    Abstract: A method for optional external calibration of a calibration-free glucose sensor uses values of measured working electrode current (Isig) and EIS data to calculate a final sensor glucose (SG) value. Counter electrode voltage (Vcntr) may also be used as an input. Raw Isig and Vcntr values may be preprocessed, and low-pass filtering, averaging, and/or feature generation may be applied. SG values may be generated using one or more models for predicting SG calculations. When an external blood glucose (BG) value is available, the BG value may also be used in calculating the SG values. A SG variance estimate may be calculated for each predicted SG value and modulated, with the modulated SG values then fused to generate a fused SG. A Kalman filter, as well as error detection logic, may be applied to the fused SG value to obtain a final SG, which is then displayed to the user.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: January 4, 2022
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: Jeffrey Nishida, Andrea Varsavsky, Taly G. Engel, Keith Nogueira, Andy Y. Tsai, Peter Ajemba
  • Patent number: 11213231
    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.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: January 4, 2022
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: Jenn-Hann Larry Wang, Michael E. Miller, Raghavendhar Gautham, Yiwen Li, Rajiv Shah
  • Patent number: 11213623
    Abstract: Infusion systems, infusion devices, and related operating methods are provided. A method of operating an infusion device involves determining a reference insulin absorption curve for the patient based at least in part on demographic data associated with the patient, determining a contextual adjustment factor based at least in part on a current patient context, calculating an adjusted insulin absorption curve for the patient as a function of the reference insulin absorption curve and the contextual adjustment factor, and determining a bolus dosage of the insulin based at least in part on the adjusted insulin absorption curve.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: January 4, 2022
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Boyi Jiang, Yuxiang Zhong, Pratik Agrawal
  • Patent number: 11207463
    Abstract: Apparatuses and methods for identifying an infusate in a reservoir of an infusion device and systems for use in filling fluid delivery devices are provided. An exemplary apparatus for identifying an infusate in a reservoir of an infusion device includes a chamber in selective fluid communication with the reservoir. Further, the apparatus includes an indicator located in the chamber. The indicator exhibits a visual change when contacted by an infusate. The apparatus also includes a detector arrangement to identify the infusate by detecting the visual change in the indicator. An exemplary detector arrangement may include a camera to capture an image of the infusate and indicator in the chamber, and an identifier element to compare image data to a library of stored image data.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: December 28, 2021
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Afshin Bazargan, Sarnath Chattaraj, Hsi Chung Fusselman, Guangping Zhang, Jinghua Chen
  • Patent number: 11197949
    Abstract: This invention pertains to systems and components useful for infusing medications such as insulin. Typically, the components are used to deliver insulin to a diabetic patient at a site of infusion over a period of time greater than 4 days. The system components typically comprise a cannula adapted for subcutaneous insertion into a diabetic patient. The system further comprises a fluid conduit adapted to deliver the insulin solution from a medication reservoir to the site of infusion and a depot in operable contact with the fluid conduit. The depot comprises selected materials including a site-loss mitigating agent (such as heparin) which inhibits inflammation at the site of infusion, and encapsulation of the cannula at the site of infusion. The site-loss mitigating agent is not premixed with the insulin, and instead is adapted to contact the insulin solution in the depot as the insulin solution flows from the medication reservoir to the site of infusion.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: December 14, 2021
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Kiem H. Dang, Sarnath Chattaraj, Hsi C. Fusselman, Lance P. Hoffman, Guangping Zhang
  • Patent number: 11191896
    Abstract: Infusion systems, infusion devices, and related operating methods are provided. An exemplary method of alerting a user associated with an infusion device delivering fluid to the body of the user involves obtaining a measurement value for a physiological condition being influenced by the fluid, obtaining a current amount of active fluid in the body of the user, determining a homeostasis metric based at least in part on the current amount of active fluid and the measurement value for the physiological condition, and generating an alert based at least in part on the homeostasis metric.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: December 7, 2021
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Cesar C. Palerm, Jeffrey C. Myers
  • Patent number: 11191899
    Abstract: Infusion systems, infusion devices, and related operating methods are provided. A method of operating an infusion device involves obtaining an input qualitative event attribute, such as a meal size, obtaining a quantitative event attribute associated with the qualitative event attribute that is representative of a subset of historical events for a patient associated with the qualitative event attribute, such as a representative carbohydrate amount for the qualitative meal size, and thereafter determine a dosage of fluid based at least in part on the quantitative event attribute and operate the infusion device to deliver the dosage of the fluid to the patient.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: December 7, 2021
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: Anirban Roy, Benyamin Grosman, Neha J. Parikh, Di Wu, Louis J. Lintereur
  • Patent number: 11186859
    Abstract: Embodiments of the invention provide multilayer analyte sensors having material layers (e.g. high-density amine layers) and/or configurations of material layers that function to enhance sensor function, as well as methods for making and using such sensors. Typical embodiments of the invention include glucose sensors used in the management of diabetes.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: November 30, 2021
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Robert McKinlay, Tri T. Dang
  • Patent number: 11185627
    Abstract: A method and apparatus for a connection interface between a reservoir or syringe, infusion set tubing, and an infusion pump is provided. The reservoir, a base and a cap are connected to form an integrated unit that is capable of being inserted and secured in an infusion pump housing. The cap and the infusion pump are each provided with at least one sensor or at least one detectable feature, arranged to interact with at least one corresponding detectable feature or sensor on the other of the cap and infusion pump device, to detect one or more of the presence, position or other characteristic of the cap when the cap is aligned or coupled with the infusion pump housing. The detectable feature and sensor may be magnetic, RF, mechanical, optical or any combination.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: November 30, 2021
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Jacob E. Pananen, Afshin Bazargan, Pablo Vazquez, Edmond W. Yu
  • Patent number: 11179078
    Abstract: Embodiments of the invention provide compositions useful in analyte sensors as well as methods for making and using such compositions and sensors. In typical embodiments of the invention, the sensor is a glucose sensor comprising an analyte modulating membrane formed from a polymer composition having carbonate and aromatic isocyanate chains, a composition observed to provide such membranes with improved material properties such as enhanced thermal and hydrolytic stability.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: November 23, 2021
    Assignee: MEDTRONIC MINIMED, INC.
    Inventor: Jenn-Hann Larry Wang
  • Patent number: 11173251
    Abstract: Fluid injection devices and related systems and operating methods are provided. An exemplary injection device includes an actuation arrangement to facilitate delivering fluid from a container, a user interface element coupled to the actuation arrangement, a data storage element to maintain one or more patient-specific parameter values and historical bolus data, and a control module coupled to the actuation arrangement and the data storage element. The control module of the injection device determines a bolus amount of the fluid to be delivered based at least in part on the one or more patient-specific parameter values and the historical bolus data in response to receiving a user input indicative of a desire to administer a bolus, and the control module configures the actuation arrangement to automatically deliver the bolus amount in response to manual actuation of the user interface element.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: November 16, 2021
    Assignee: Medtronic MiniMed, Inc.
    Inventor: Anirban Roy
  • Patent number: 11160477
    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.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: November 2, 2021
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: Ning Yang, Raghavendhar Gautham, Rajiv Shah
  • Patent number: 11158413
    Abstract: A medical device system and related method of automatically adjusting parameters of an insulin delivery controller of an insulin infusion device are disclosed. The methodology obtains therapy-related data associated with operation of the insulin infusion device for a number of days in the past, including sensor glucose data associated with glucose levels of the user, and meal data associated with identified meals. The obtained therapy-related data is processed to generate a suitable pharmacokinetic/pharmacodynamic (PK/PD) model of the user, wherein the PK/PD model fits at least some of the sensor glucose data obtained for the user. The PK/PD model can be used to calculate at least one adjusted parameter of the insulin delivery controller, based on additional therapy-related data associated with further operation of the insulin infusion device. The insulin delivery controller can be instructed or controlled to adjust its settings in accordance with the model-calculated parameters.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: October 26, 2021
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: Benyamin Grosman, Di Wu, Louis J. Lintereur, Anirban Roy, Neha J. Parikh, Patrick E. Weydt, Ali Dianaty
  • Patent number: 11147919
    Abstract: Disclosed here is a computer-based device and related methodology that manages use of a dual-mode insulin infusion device. The infusion device operates in a manual insulin delivery mode or an automated closed-loop insulin delivery mode. The methodology receives closed-loop pump data for a user of the infusion device, the closed-loop pump data including data indicating basal insulin delivered by the infusion device during operation in the automated closed-loop insulin delivery mode for at least one defined period of time. The methodology analyzes the closed-loop pump data to generate updated basal rate data for the user, and generates, from the updated basal rate data, a recommendation to adjust a manual-mode basal rate setting of the infusion device. In certain scenarios, the infusion device is controlled such that the manual-mode basal rate setting is adjusted in accordance with the recommendation.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: October 19, 2021
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: Neha J. Parikh, Anirban Roy, Benyamin Grosman, Patrick E. Weydt, Louis J. Lintereur, Di Wu, Francine R. Kaufman, Scott W. Lee
  • Patent number: 11141530
    Abstract: A delivery device includes a durable housing portion and a separable disposable portion that selectively engage and disengage from each other. The disposable housing portion secures to the patient and may be disposed of after it has been in use for a prescribed period. Components that normally come into contact with a patient or with infusion media are supported by the disposable housing portion for disposal after the prescribed use, while the durable housing portion supports other components such as electronics for controlling delivery of infusion media from the reservoir and a drive device and drive linkage.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: October 12, 2021
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Sheldon B. Moberg, Ian B. Hanson, Paul S. Cheney, II
  • Patent number: 11134872
    Abstract: Embodiments of the invention provide compositions useful in analyte sensors as well as methods for making and using such compositions and sensors. In typical embodiments of the invention, the sensor is a glucose sensor comprising an analyte modulating membrane formed from a polymeric reaction mixture formed to include limiting amounts of catalyst and/or polycarbonate compounds so as to provide such membranes with improved material properties such as enhanced thermal and hydrolytic stability.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: October 5, 2021
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: Jenn-Hann Larry Wang, Dero Hovanes, Poonam S. Gulati
  • Patent number: 11134868
    Abstract: The invention disclosed herein includes electrode compositions formed from processes that sputter metal in a manner that produces pillar architectures. Embodiments of the invention can be used in analyte sensors having such electrode architectures as well as methods for making and using these sensor electrodes. A number of working embodiments of the invention are shown to be useful in amperometric glucose sensors worn by diabetic individuals. However, the metal pillar structures have wide ranging applicability and should increase surface area and decrease charge density for catalyst layers or electrodes used with sensing, power generation, recording, and stimulation, in vitro and/or in the body, or outside the body.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: October 5, 2021
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Akhil Srinivasan, Melissa Tsang, Robert C. Mucic, Tyler R. Wong, Rui Kong, Barry P. Pham
  • Patent number: 11123516
    Abstract: A catheter including a tubular catheter body defining a distal portion, a distal end and a lumen that extends to the distal end, a radiopaque marker carried within the lumen, and a non-metal tip that is bonded to distal end of the catheter body.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: September 21, 2021
    Assignee: Medtronic Minimed, Inc.
    Inventors: Juan Ramon Gonzalez, Sam William Bowman, Rudolph A. Montalvo