Patents by Inventor Burke K. Chan

Burke K. Chan 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).

  • CONNECTION OF A STOPPER AND PISTON IN A FLUID DELIVERY DEVICE
    Publication number: 20240017022
    Abstract: A device for delivering fluid to a user includes a fluid reservoir for holding the fluid, the fluid reservoir defining an internal volume and a stopper positioned in the internal volume of the fluid reservoir, wherein the stopper is formed with a cavity. The device further includes a piston having a distal end received within the cavity of the stopper and an actuator coupled to the piston for driving the piston into the internal volume of the fluid reservoir. Also, the device includes a coupling device for engaging the piston in the cavity of the stopper at a desired position and a sensor for determining whether the piston is engaged in the cavity of the stopper at the desired position.
    Type: Application
    Filed: July 19, 2023
    Publication date: January 18, 2024
    Inventors: Amith Wijesuriya, Ryan A. Peck, Thomas P. Miller, Burke K. Chan, Victor A. Sanchez
  • Connection of a stopper and piston in a fluid delivery device
    Patent number: 11724045
    Abstract: A device for delivering fluid to a user includes a fluid reservoir for holding the fluid, the fluid reservoir defining an internal volume and a stopper positioned in the internal volume of the fluid reservoir, wherein the stopper is formed with a cavity. The device further includes a piston having a distal end received within the cavity of the stopper and an actuator coupled to the piston for driving the piston into the internal volume of the fluid reservoir. Also, the device includes a coupling device for engaging the piston in the cavity of the stopper at a desired position and a sensor for determining whether the piston is engaged in the cavity of the stopper at the desired position.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: August 15, 2023
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Amith Wijesuriya, Ryan A. Peck, Thomas P. Miller, Burke K. Chan, Victor A. Sanchez
  • CONNECTION OF A STOPPER AND PISTON IN A FLUID DELIVERY DEVICE
    Publication number: 20210052828
    Abstract: A device for delivering fluid to a user includes a fluid reservoir for holding the fluid, the fluid reservoir defining an internal volume and a stopper positioned in the internal volume of the fluid reservoir, wherein the stopper is formed with a cavity. The device further includes a piston having a distal end received within the cavity of the stopper and an actuator coupled to the piston for driving the piston into the internal volume of the fluid reservoir. Also, the device includes a coupling device for engaging the piston in the cavity of the stopper at a desired position and a sensor for determining whether the piston is engaged in the cavity of the stopper at the desired position.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 25, 2021
    Inventors: Amith Wijesuriya, Ryan A. Peck, Thomas P. Miller, Burke K. Chan, Victor A. Sanchez