Patents by Inventor Steven Ward Fischer

Steven Ward Fischer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240374821
    Abstract: A system and method are disclosed for detecting remaining battery voltage or capacity in an infusion device and generating alarms based on the detection. A battery lifetime extension method includes providing an infusion device that derives its power from a rechargeable battery. The infusion device may derive its power from a rechargeable battery. Furthermore, the infusion device receives, at predetermined intervals of time in real-time sensor data comprising a voltage, a change in the voltage over the predetermined interval of time, an average current, a temperature, and a remaining voltage or capacity reported by a battery gas gauge integrated circuit (“IC”) associated with the rechargeable battery. A customized neural network model utilizes the sensor data to determine an indicia of the actual remaining voltage or capacity of the rechargeable battery in real-time. The indicia may be used to lengthen and/or abate ongoing medical infusion therapy.
    Type: Application
    Filed: July 22, 2024
    Publication date: November 14, 2024
    Inventors: Steven Ward Fischer, Matthew Stephen Vogel, Ye Chen
  • Patent number: 12042628
    Abstract: A system and method is disclosed for detecting remaining battery voltage or capacity in an infusion device and generating alarms based on the detection. The battery lifetime extension method includes providing an infusion device that derives its power from a rechargeable battery. The infusion device may derive its power from a rechargeable battery. Furthermore, the infusion device receives, at predetermined intervals of time in real-time sensor data comprising: a voltage, a change in the voltage over the predetermined interval of time, an average current, a temperature, and a remaining voltage or capacity reported by a battery gas gauge integrated circuit (“IC”) associated with the rechargeable battery. An improved and customized neural network model utilizes the sensor data to determine an indicia of the actual remaining voltage or capacity of the rechargeable battery in real-time. The indicia may be used to lengthen and/or abate ongoing medical infusion therapy.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: July 23, 2024
    Assignees: Baxter International Inc., Baxter Healthcare SA
    Inventors: Steven Ward Fischer, Matthew Stephen Vogel, Ye Chen
  • Publication number: 20230364337
    Abstract: An infusion pump includes a housing with a door pivotally mounted to the housing, a tube channel on the housing configured to hold a tube in the infusion pump, a pumping mechanism including a shuttle, and a slide clamp ejection device.
    Type: Application
    Filed: July 26, 2023
    Publication date: November 16, 2023
    Inventors: Bhagyesh Kishore Bhandar, Steven Ward Fischer, Aaron M. Hexamer, Jiri Slaby, Jason Andrew Maine, Scott Christian Ofslager, Morris Wilson Wallace, Keerthika Lakshmi Niharika Chinthapalli, Peter M. Bojan
  • Patent number: 11724026
    Abstract: An infusion pump includes a housing with a door pivotally mounted to the housing, a tube channel on the housing configured to hold a tube in the infusion pump, a pumping mechanism including a shuttle, and a slide clamp ejection device.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: August 15, 2023
    Assignees: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE SA
    Inventors: Bhagyesh Kishore Bhandar, Steven Ward Fischer, Aaron M. Hexamer, Jiri Slaby, Jason Andrew Maine, Scott Christian Ofslager, Morris Wilson Wallace, Keerthika Lakshmi Niharika Chinthapalli, Peter M. Bojan
  • Publication number: 20230098092
    Abstract: The present disclosure provides a new and innovative method and system for flow rate compensation in devices, such as medical devices and other electronic devices. In various embodiments, a computer-implemented method includes dispensing, by a pump controlled by a controller, a fluid from a fluid supply in a pulse mode over a period by determining a pulse volume for a pulse, determining a pulse cycle time, and for the period: controlling the position of the pump to perform a delay and perform a pulse to dispense an amount of the fluid, the pulse performed for the pulse cycle time, calculating an overshoot or undershoot of the amount of the fluid dispensed relative to the pulse volume, adjusting the pulse cycle time based on the calculated overshoot or undershoot, and repeating the dispensing until the period has elapsed.
    Type: Application
    Filed: September 28, 2022
    Publication date: March 30, 2023
    Inventors: Steven Ward Fischer, Morris Wallace, Ye Chen
  • Publication number: 20220203026
    Abstract: Systems and methods for detecting an occlusion in an infusion device are disclosed. One method includes generating, during an infusion session at predetermined intervals, a feature vector comprising an initial measurement of a physical force caused by fluid motion through an infusion device at the start of an infusion session, a current measurement of the physical force, a long term change in the measurement of the physical force, and a short term change in the measurement of the physical force. The feature vector is inputted, during the predetermined intervals, into a support vector machine (“SVM”) to output an indication of a presence or an absence of an occlusion in the infusion device. The SVM may be trained using reference data from reference infusion sessions having known consequences regarding the presence or the absence of an occlusion at various times during the reference infusion sessions.
    Type: Application
    Filed: December 30, 2021
    Publication date: June 30, 2022
    Inventors: Steven Ward Fischer, Ye Chen
  • Publication number: 20220203028
    Abstract: A system and method is disclosed for detecting remaining battery voltage or capacity in an infusion device and generating alarms based on the detection. The battery lifetime extension method includes providing an infusion device that derives its power from a rechargeable battery. The infusion device may derive its power from a rechargeable battery. Furthermore, the infusion device receives, at predetermined intervals of time in real-time sensor data comprising: a voltage, a change in the voltage over the predetermined interval of time, an average current, a temperature, and a remaining voltage or capacity reported by a battery gas gauge integrated circuit (“IC”) associated with the rechargeable battery. An improved and customized neural network model utilizes the sensor data to determine an indicia of the actual remaining voltage or capacity of the rechargeable battery in real-time. The indicia may be used to lengthen and/or abate ongoing medical infusion therapy.
    Type: Application
    Filed: December 30, 2021
    Publication date: June 30, 2022
    Inventors: Steven Ward Fischer, Matthew Stephen Vogel, Ye Chen
  • Publication number: 20190351138
    Abstract: An infusion pump includes a housing with a door pivotally mounted to the housing, a tube channel on the housing configured to hold a tube in the infusion pump, a pumping mechanism including a shuttle, and a slide clamp ejection device.
    Type: Application
    Filed: May 15, 2019
    Publication date: November 21, 2019
    Inventors: Bhagyesh Kishore Bhandar, Steven Ward Fischer, Aaron M. Hexamer, Jiri Slaby, Jason Andrew Maine, Scott Christian Ofslager, Morris Wilson Wallace, Keerthika Lakshmi Niharika Chinthapalli, Peter M. Bojan