Patents by Inventor Lief E. Leirfallom

Lief E. Leirfallom 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).

  • Infusion flow system and fluid coupling
    Patent number: 9238119
    Abstract: Fluid infusion systems and fluid couplings are described herein. The infusion systems may include one or more fluid couplings used to make fluidic connection between a supply line and delivery tubing. The fluid couplings separate the functions of providing a seal around a delivery tube and retaining the delivery tube within the fluid coupling. The seal provided around the delivery tube prevents leakage around an exterior surface of a delivery tube such that fluid passing through the coupling must pass through the delivery tube rather than leak around the delivery tube. The structure used to retain the delivery tube in the fluid coupling prevents ejection of the delivery tube from the coupling due to the fluid pressures present in the coupling. The separate functions are performed by different structures within the fluid couplings.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: January 19, 2016
    Assignee: BOSTON SCIENTIFIC LIMITED
    Inventors: Eric J. Thor, Douglas J. Ball, Lief E. Leirfallom, Michael J. Bonnette, Jason M. Bronstad, Jason Anderson
  • Infusion Flow System and Fluid Coupling
    Publication number: 20130138086
    Abstract: Fluid infusion systems and fluid couplings are described herein. The infusion systems may include one or more fluid couplings used to make fluidic connection between a supply line and delivery tubing. The fluid couplings separate the functions of providing a seal around a delivery tube and retaining the delivery tube within the fluid coupling. The seal provided around the delivery tube prevents leakage around an exterior surface of a delivery tube such that fluid passing through the coupling must pass through the delivery tube rather than leak around the delivery tube. The structure used to retain the delivery tube in the fluid coupling prevents ejection of the delivery tube from the coupling due to the fluid pressures present in the coupling. The separate functions are performed by different structures within the fluid couplings.
    Type: Application
    Filed: August 11, 2011
    Publication date: May 30, 2013
    Applicant: MEDRAD, INC.
    Inventors: Eric J. Thor, Douglas J. Ball, Lief E. Leirfallom, Michael J. Bonnette, Jason M. Bronstad, Jason Anderson