Patents by Inventor Jeff N. Rejent

Jeff N. Rejent 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).

  • Test cartridge holder for blood samples
    Patent number: 8333938
    Abstract: Improved methods and apparatus that make more accurate and reduces risk of filling reaction chambers of cartridge cells with blood samples to conduct blood coagulation tests of the type employing the plunger technique are disclosed. A cartridge holder is provided that secures a test cartridge in a fixed upright position and deflects the plunger flag of each cartridge cell to enable manual insertion of a blood dispenser deeply into the reaction chamber to fill the reaction chamber and avoid contamination of surfaces of the cartridge outside the reaction chamber. Preferably, the cartridge holder provides illumination of the reaction chamber during filling, so that the user can judge when the reaction chamber is properly filled with blood dispensed from the blood dispenser. The cartridge holder may incorporate image magnification to facilitate viewing of the reaction chamber as it is filled.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: December 18, 2012
    Assignee: Medronic, Inc.
    Inventors: Michael M. Green, Douglas D. Nippoldt, William D. Zillmann, Brent E. Wallace, Jeff N. Rejent
  • Test cartridge holder for blood samples
    Patent number: 7294312
    Abstract: Improved methods and apparatus that make more accurate and reduces risk of filling reaction chambers of cartridge cells with blood samples to conduct blood coagulation tests of the type employing the plunger technique are disclosed. A cartridge holder is provided that secures a test cartridge in a fixed upright position and deflects the plunger flag of each cartridge cell to enable manual insertion of a blood dispenser deeply into the reaction chamber to fill the reaction chamber and avoid contamination of surfaces of the cartridge outside the reaction chamber. Preferably, the cartridge holder provides illumination of the reaction chamber during filling, so that the user can judge when the reaction chamber is properly filled with blood dispensed from the blood dispenser. The cartridge holder may incorporate image magnification to facilitate viewing of the reaction chamber as it is filled.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: November 13, 2007
    Assignee: Medtronic, Inc.
    Inventors: Michael M. Green, Douglas D. Nippoldt, William D. Zillmann, Brent E. Wallace, Jeff N. Rejent
  • Test cartridge holder for blood samples
    Publication number: 20040166590
    Abstract: Improved methods and apparatus that make more accurate and reduces risk of filling reaction chambers of cartridge cells with blood samples to conduct blood coagulation tests of the type employing the plunger technique are disclosed. A cartridge holder is provided that secures a test cartridge in a fixed upright position and deflects the plunger flag of each cartridge cell to enable manual insertion of a blood dispenser deeply into the reaction chamber to fill the reaction chamber and avoid contamination of surfaces of the cartridge outside the reaction chamber. Preferably, the cartridge holder provides illumination of the reaction chamber during filling, so that the user can judge when the reaction chamber is properly filled with blood dispensed from the blood dispenser. The cartridge holder may incorporate image magnification to facilitate viewing of the reaction chamber as it is filled.
    Type: Application
    Filed: February 20, 2003
    Publication date: August 26, 2004
    Inventors: Michael M. Green, Douglas D. Nippoldt, William D. Zillmann, Brent E. Wallace, Jeff N. Rejent