Patents by Inventor Ray Fei

Ray Fei 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).

  • Method and apparatus for treating saphenous vein graft lesions
    Patent number: 6569146
    Abstract: A method for treating loosely formed, friable or fragile lesions in a patient's blood vessel. A catheter having a pair of sealing mechanisms is advanced such that the sealing mechanisms are positioned distal to and proximal to the lesion. The sealing mechanisms are activated to seal the vessel on either side of the lesion. A medication is then delivered through the catheter to the sealed area of the vessel. The medication interacts with the lesion in order to partially or completely solidify it. Once the lesion is solidified, the catheter is removed and the lesion can be treated with a conventional intravascular device.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: May 27, 2003
    Assignee: SciMed Life Systems, Inc.
    Inventors: Dennis Werner, David H. Dillard, Ray Fei, Gary Swinford, Verivada Chandru Chandrasekaran, Tim J. Johnson