Patents by Inventor Jens E. Hoekendijk

Jens E. Hoekendijk 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).

  • Trocar with expandable members for retaining the trocar
    Patent number: 5971960
    Abstract: A trocar which is particularly suited for use as a thoracic trocar. The trocar includes a number of arms at the distal end which are movable from a closed position, which is used for inserting the trocar into the patient, to a second position, which is used for locking the trocar to the patient. The arms may be naturally biased to the open position or may be moved by mechanical actuation.
    Type: Grant
    Filed: March 12, 1996
    Date of Patent: October 26, 1999
    Assignee: Heartport, Inc.
    Inventors: James R. Flom, Hanson S. Gifford, III, Jens E. Hoekendijk