Patents by Inventor Diana Nguyen

Diana Nguyen 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).

  • Bioprosthetic heart valve implantation device
    Patent number: 5800531
    Abstract: In general, the present invention comprises an holding apparatus for facilitating implantation of a prosthetic heart valve within a mammalian heart. The holding apparatus generally comprises a cage or enclosure having a heart valve prosthesis retention space defined therewith. The proximal end of the holding apparatus is releasably attached to the proximal end of the heart valve prosthesis such that, when the holding apparatus is advanced in a forward direction, a "pulling" force will be exerted upon the proximal end of the prosthesis, rather than a "pushing" force being exerted upon the distal end of the prosthesis.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: September 1, 1998
    Assignee: Baxter International Inc.
    Inventors: Delos M. Cosgrove, Richard Rhee, Diana Nguyen
  • Stentless heart valve and holder
    Patent number: 5336258
    Abstract: A stentless aortic heart valve having a disposable holder with a removable handle can be manually reversed by the physician during suturing to provide a relatively unobstructed view into the patient's aorta. A covering applied to strategic regions on the exterior and interior of the device provides a firm ground for suturing the prosthetic heart valve into position, and for attaching the detachable holder.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: August 9, 1994
    Assignee: Baxter International Inc.
    Inventors: Lillian J. Quintero, Delos M. Cosgrove, Diana Nguyen-Thien-Nhon
  • Stentless heart valve and holder
    Patent number: 5197979
    Abstract: A stentless aortic heart valve having a disposable holder with a removable handle can be manually reversed by the physician during suturing to provide a relatively unobstructed view into the patient's aorta. A covering applied to strategic regions on the exterior and interior of the device provides a firm ground for suturing the prosthetic heart valve into position, and for attaching the detachable holder.
    Type: Grant
    Filed: September 7, 1990
    Date of Patent: March 30, 1993
    Assignee: Baxter International Inc.
    Inventors: Lillian J. Quintero, Delos M. Cosgrove, Diana Nguyen-Thien-Nhon