Patents Assigned to Endocardial Therapeutics, Inc.
  • Heart mapping catheter
    Patent number: 5311866
    Abstract: A mapping catheter assembly 10 including a flexible lead body 12 and a deformable lead body 14. A lumen 22 is provided to accept a reference catheter 18 which includes a distal tip electrode assembly 29. In use an array 16 of electrode sites are deformed into a spherical shape after the assembly is placed in a heart chamber. The reference electrode assembly 29 is advanced into contact with the heart wall to provide calibration information for the array 16.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: May 17, 1994
    Assignee: Endocardial Therapeutics, Inc.
    Inventors: Jonathan Kagan, Graydon E. Beatty, Jeffrey R. Budd
  • Endocardial mapping system
    Patent number: 5297549
    Abstract: An array of electrode sites are placed in a heart chamber. The shape of the chamber and the location of the electrodes is determined via impedance plethysmography. Electrical measurements taken from the electrode array and referenced to a surface contacting electrode is used to generate a three-dimensional map of electrical activity. A two-dimensional map of the electrical activity within the endocardial surface is also computed.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: March 29, 1994
    Assignee: Endocardial Therapeutics, Inc.
    Inventors: Graydon E. Beatty, Jonathan Kagan, Jeffrey R. Budd