Patents by Inventor Nora T. Pham

Nora T. Pham 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).

  • Heat exchange catheter having helically wound reinforcement
    Patent number: 6641603
    Abstract: A intravascular heat exchange catheter includes a catheter body having a proximal end connectable with a heat exchange fluid source and a distal end insertable into the vasculature of a patient to facilitate heat transfer with flowing blood. The core has at least one heat exchange fluid lumen for circulating heat exchange fluid within the catheter body. A heat exchanger, e.g. a balloon surrounds a portion of the proximal end of the catheter. The heat exchanger is in fluid communication with the heat exchange fluid lumen for enabling heat exchange fluid from the heat exchange fluid source to circulate through the core and the balloon. A wire, or similar retainer, wraps around the balloon to seal the balloon against the core, forming at least two heat exchange lumens between the balloon and the core.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: November 4, 2003
    Assignee: Alsius Corporation
    Inventors: Blair D. Walker, Nora T. Pham
  • Heat exchange catheter having helically wound reinforcement
    Publication number: 20020151944
    Abstract: A intravascular heat exchange catheter includes a catheter body having a proximal end connectable with a heat exchange fluid source and a distal end insertable into the vasculature of a patient to facilitate heat transfer with flowing blood. The core has at least one heat exchange fluid lumen for circulating heat exchange fluid within the catheter body. A heat exchanger, e.g. a balloon surrounds a portion of the proximal end of the catheter. The heat exchanger is in fluid communication with the heat exchange fluid lumen for enabling heat exchange fluid from the heat exchange fluid source to circulate through the core and the balloon. A wire, or similar retainer, wraps around the balloon to seal the balloon against the core, forming at least two heat exchange lumens between the balloon and the core.
    Type: Application
    Filed: April 11, 2002
    Publication date: October 17, 2002
    Applicant: Alsius
    Inventors: Blair D. Walker, Nora T. Pham