Patents by Inventor Bandula Wijayarthna

Bandula Wijayarthna 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).

  • Loop coronary catheter
    Patent number: 4694838
    Abstract: A coronary catheter has a transverse loop at the distal end of the catheter with two spaced, outwardly directed groups of openings centered to align with blood flow to respective coronary ostia when the catheter is in a maximum radius of curvature in the aorta. Each group of openings is spaced over a region of the outer peripheral wall of the loop so as to direct a fan-like pattern of contrast medium toward the aorta wall at the situs of the corresponding coronary ostium or directly upstream therefrom.
    Type: Grant
    Filed: January 23, 1985
    Date of Patent: September 22, 1987
    Assignees: Mallinckrodt, Inc., Duke University
    Inventors: Bandula Wijayarthna, Glenn E. Newman