Patents by Inventor Cheryl R. Johnson

Cheryl R. Johnson 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).

  • Apparatus and methods for procedures related to the electrophysiology of the heart
    Patent number: 5967976
    Abstract: Methods and apparatus are disclosed for use in procedures related to the electrophysiology of the heart, such as identifying or evaluating the electrical activity of the heart, diagnosing and/or treating conditions associated with the electrophysiology of the heart. An apparatus having thermocouple elements of different electromotive potential conductively connected at a junction is introduced into the interior of the heart and a section of heart tissue is contacted with the junction. An electrical current is passed through the thermocouple elements to reduce the temperature of the junction in accordance with the Peltier effect and thereby cool the contacted heart tissue. The effect of the cooling may be monitored and, if desired the section of heart tissue may be treated.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: October 19, 1999
    Assignee: Novoste Corporation
    Inventors: Charles E. Larsen, Roelof Trip, Cheryl R. Johnson
  • Apparatus for procedures related to the electrophysiology of the heart
    Patent number: 5755663
    Abstract: Methods and apparatus are disclosed for use in procedures related to ther electrophysiology of the heart, such as identifying or evaluating the electrical activity of the heart, diagnosing and/or treating conditions associated with the electrophysiology of the heart. An apparatus having thermocouple elements of different electromotive potential conductively connected at a junction is introduced into the interior of the heart and a section of heart tissue is contacted with the junction. An electrical current is passed through the thermocouple elements to reduce the temperature of the junction in accordance with the Peltier effect and thereby cool the contacted heart tissue. The effect of the cooling may be monitored and, if desired, the section of heart tissue may be treated.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: May 26, 1998
    Assignee: Novoste Corporation
    Inventors: Charles E. Larsen, Roelof Trip, Cheryl R. Johnson
  • Methods for procedures related to the electrophysiology of the heart
    Patent number: 5529067
    Abstract: Methods and apparatus are disclosed for use in procedures related to the electrophysiology of the heart, such as identifying or evaluating the electrical activity of the heart, diagnosing and/or treating conditions associated with the electrophysiology of the heart. An apparatus having thermocouple elements of different electromotive potential conductively connected at a junction is introduced into the interior of the heart and a section of heart tissue is contacted with the junction. An electrical current is passed through the thermocouple elements to reduce the temperature of the junction in accordance with the Peltier effect and thereby cool the contacted heart tissue. The effect of the cooling may be monitored and, if desired, the section of heart tissue may be treated.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: June 25, 1996
    Assignee: Novoste Corporation
    Inventors: Charles E. Larsen, Roel Trip, Cheryl R. Johnson