Patents by Inventor Roxanna K. Kendall

Roxanna K. Kendall 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).

  • Methods and apparatus for sizing fresh donor heart valves
    Patent number: 7367984
    Abstract: A fresh donor tissue valve isolation annulus size comprising a handle and trigger or crank knob manipulated by the user moves a movable probe into proximity with a stationary probe so that the probes can be inserted into the tissue valve lumen. The user releases the trigger or crank, and a biasing mechanism urges the movable probe away from the stationary probe until the resistance presented by the valve annulus equals the biasing force. A gage coupled to the movable probe displays a measure of the valve annulus diameter as a function of the distance that the movable probe moves away from the stationary probe until restrained from further movement by the fresh tissue valve annulus.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: May 6, 2008
    Assignee: Medtronic, Inc.
    Inventors: David L. Kulcinski, Luis A. Salazar, Dana K. Swanson, Gary T. Tsuruta, Roxanna K. Kendall
  • Methods and apparatus for sizing fresh donor heart valves
    Publication number: 20040225320
    Abstract: A fresh donor tissue valve isolation annulus sizer comprises a handle and trigger or crank knob manipulated by the user moves a movable probe into proximity with a stationary probe so that the probes can be inserted into the tissue valve lumen. The user releases the trigger or crank, and a biasing mechanism urges the movable probe away from the stationary probe until the resistance presented by the valve annulus equals the biasing force. A gage coupled to the movable probe displays a measure of the valve annulus diameter as a function of the distance that the movable probe moves away from the stationary probe until restrained from further movement by the fresh tissue valve annulus.
    Type: Application
    Filed: May 7, 2003
    Publication date: November 11, 2004
    Inventors: David L. Kulcinski, Luis A. Salazar, Dana K. Swanson, Gary T. Tsuruta, Roxanna K. Kendall