Patents by Inventor Christopher Allan Hartemink

Christopher Allan Hartemink 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).

  • Heart valve with rectangular orifice
    Patent number: 6699283
    Abstract: A mechanical heart valve prosthesis has a generally rectangular orifice and two leaflets that move between a closed position nearly perpendicular to blood flow and an open position nearly parallel to blood flow. Due to the uniform dimension of a rectangle, the leaflets are hinged at the periphery of the orifice, and present a single large central flow region to the blood when opened. The base provides several means of constraining the leaflet rotation during opening and closing.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: March 2, 2004
    Inventors: Daniel Clarke Mazzucco, Christopher Allan Hartemink, Seth Owen Newburg
  • Heart valve with rectangular orifice
    Publication number: 20020161432
    Abstract: A mechanical heart valve prosthesis has a generally rectangular orifice and two leaflets that move between a closed position nearly perpendicular to blood flow and an open position nearly parallel to blood flow. Due to the uniform dimension of a rectangle, the leaflets are hinged at the periphery of the orifice, and present a single large central flow region to the blood when opened. The base provides several means of constraining the leaflet rotation during opening and closing.
    Type: Application
    Filed: April 25, 2002
    Publication date: October 31, 2002
    Inventors: Daniel Clarke Mazzucco, Christopher Allan Hartemink, Seth Owen Newburg