Patents by Inventor Gloria Alvarez

Gloria Alvarez 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).

  • Large surface cardiac ablation catherter that assumes a low profile during introduction into the heart
    Patent number: 6379352
    Abstract: A cardiac ablation catheter has an energy emitting surface for thermally destroying tissue. The surface normally presents a compact, low profile for introduction into the heart. Once introduced, the energy emitting surface can be significantly enlarged. The enlarged surface emits ablation energy sufficient to create a lesion that is significantly larger in terms of volume and geometry than the surface's initial low profile would provide.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: April 30, 2002
    Assignee: EP Technologies, Inc.
    Inventors: Jeffrey N. Reynolds, Thomas Bourne, Jerome Jackson, Gloria Alvarez, Stuart D. Edwards
  • Large surface cardiac ablation catheter that assumes a low profile during introduction into the heart
    Patent number: 6086581
    Abstract: A cardiac ablation catheter has an energy emitting surface for thermally destroying tissue. The surface normally presents a compact, low profile for introduction into the heart. Once introduced, the energy emitting surface can be significantly enlarged. The enlarged surface emits ablation energy sufficient to create a lesion that is significantly larger in terms of volume and geometry than the surface's initial low profile would provide.
    Type: Grant
    Filed: July 30, 1993
    Date of Patent: July 11, 2000
    Assignee: EP Technologies, Inc.
    Inventors: Jeffrey N. Reynolds, Thomas Bourne, Jerome Jackson, Gloria Alvarez, Stuart D. Edwards
  • Catheter having ring electrodes secured thereon
    Patent number: 5855552
    Abstract: A catheter having an elongated polymeric body with hollow encircling ring electrodes thereon and a method of forming the same are provided by the invention. Ring electrodes are each connected to an external electrical circuit by wires extending through the lumen, the wires each passing through an aperture through a wall of the body and being connected to an interior surface of the ring electrode. The tubular body of the catheter is expanded into a tight interference fit with the interior surfaces of the ring electrodes by heating the body to a temperature approaching its glass transition temperature to permit relief of internal stresses.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: January 5, 1999
    Assignee: EP Technologies, Inc.
    Inventors: Russell A. Houser, Gloria Alvarez, Russell B. Thompson, Michael Idaomi
  • Method of securing ring electrodes onto catheter
    Patent number: 5524337
    Abstract: A catheter having an elongated polymeric body with hollow encircling ring electrodes thereon and a method of forming the same are provided by the invention. Ring electrodes are each connected to an external electrical circuit by wires extending through the lumen, the wires each passing through an aperture through a wall of the body and being connected to an interior surface of the ring electrode. The tubular body of the catheter is expanded into a tight interference fit with the interior surfaces of the ring electrodes by heating the body to a temperature approaching its glass transition temperature to permit relief of internal stresses.
    Type: Grant
    Filed: September 21, 1994
    Date of Patent: June 11, 1996
    Assignee: EP Technologies, Inc.
    Inventors: Russell A. Houser, Gloria Alvarez, Russell B. Thompson, Michael Idaomi