Patents by Inventor Hanh Ngoc Do

Hanh Ngoc Do 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).

  • IRRIGATED ABLATION CATHETER WITH MULTIPLE SEGMENTED ABLATION ELECTRODES
    Publication number: 20220323147
    Abstract: In one embodiment, an irrigated catheter ablation apparatus comprises an elongated body having a distal end, a proximal end, and at least one fluid lumen extending longitudinally therein; and a plurality of segmented ablation electrodes on a distal portion of the elongated body. The electrodes are spaced from the proximal end and from the distal end of the elongated body by electrically nonconductive segments. The electrodes are spaced from each other longitudinally by electrically nonconductive segments. For each electrode that is longitudinally disposed next to one of the nonconductive segments, an edge is formed between an electrode end of the electrode and a nonconductive segment end of the nonconductive segment. A plurality of elution holes are disposed adjacent to the edges. A plurality of ducts establish fluid communication between the elution holes and the fluid lumen.
    Type: Application
    Filed: June 22, 2022
    Publication date: October 13, 2022
    Inventors: Cary HATA, Thu Xuan TRAN, Alan de la RAMA, Tho Hoang NGUYEN, Irvin John NARCISO, Peter C. CHEN, Hanh Ngoc DO
  • Irrigated ablation catheter with multiple segmented ablation electrodes
    Patent number: 11395694
    Abstract: In one embodiment, an irrigated catheter ablation apparatus comprises an elongated body having a distal end, a proximal end, and at least one fluid lumen extending longitudinally therein; and a plurality of segmented ablation electrodes on a distal portion of the elongated body. The electrodes are spaced from the proximal end and from the distal end of the elongated body by electrically nonconductive segments. The electrodes are spaced from each other longitudinally by electrically nonconductive segments. For each electrode that is longitudinally disposed next to one of the nonconductive segments, an edge is formed between an electrode end of the electrode and a nonconductive segment end of the nonconductive segment. A plurality of elution holes are disposed adjacent to the edges. A plurality of ducts establish fluid communication between the elution holes and the fluid lumen.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: July 26, 2022
    Assignee: ST. JUDE MEDICAL, LLC
    Inventors: Cary Hata, Thu Xuan Tran, Alan de la Rama, Tho Hoang Nguyen, Irvin John Narciso, Peter C. Chen, Hanh Ngoc Do
  • IRRIGATED ABLATION CATHETER WITH MULTIPLE SEGMENTED ABLATION ELECTRODES
    Publication number: 20100286684
    Abstract: In one embodiment, an irrigated catheter ablation apparatus comprises an elongated body having a distal end, a proximal end, and at least one fluid lumen extending longitudinally therein; and a plurality of segmented ablation electrodes on a distal portion of the elongated body. The electrodes are spaced from the proximal end and from the distal end of the elongated body by electrically nonconductive segments. The electrodes are spaced from each other longitudinally by electrically nonconductive segments. For each electrode that is longitudinally disposed next to one of the nonconductive segments, an edge is formed between an electrode end of the electrode and a nonconductive segment end of the nonconductive segment. A plurality of elution holes are disposed adjacent to the edges. A plurality of ducts establish fluid communication between the elution holes and the fluid lumen.
    Type: Application
    Filed: May 7, 2009
    Publication date: November 11, 2010
    Inventors: Cary HATA, Thu Xuan Tran, Alan de la Rama, Tho Hoang Nguyen, Irvin John Narciso, Peter C. Chen, Hanh Ngoc Do