Patents by Inventor Edward Yeend Duer

Edward Yeend Duer 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).

  • Catheter assembly for dilation of constricted blood vessel
    Patent number: 5669879
    Abstract: A catheter assembly for dilation of constricted blood vessels includes a catheter supporting a radiopaque balloon insertable into a patient blood vessel. The catheter provides a coupling passage between the inflatable radiopaque balloon and a three-way valve. The three-way valve is selectively coupled to a liquid feed mechanism such as a conventional syringe and an expandable pressure buffering balloon. The communication between the expandable radiopaque balloon and the liquid feed mechanism or pressure buffering balloon is controlled by switching the three-way valve.
    Type: Grant
    Filed: June 15, 1994
    Date of Patent: September 23, 1997
    Inventor: Edward Yeend Duer