A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 5/04 (2006.01) A61B 18/02 (2006.01) H01L 35/00 (2006.01) A61B 5/042 (2006.01) A61B 17/00 (2006.01) A61B 18/14 (2006.01)
Patent
CA 2197326
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 (48, 50) of different electromotive potential conductively connected at a junction (56) is introduced into the interior of the heart and a section of heart tissue is contacted with the junction (56). An electrical current is passed through the thermocouple elements (48, 50) to reduce the temperature of the junction (56) 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.
Procédés et appareil utilisés dans des opérations relatives à l'électrophysiologie du coeur telles que l'identification ou l'évaluation de l'activité électrique du coeur, le diagnostic et/ou le traitement d'états associés à l'électrophysiologie du coeur. L'appareil, pourvu de thermocouples (48, 50) de potentiel électromoteur différent reliés électriquement à une jonction (56) est introduit dans le coeur de façon à placer la jonction (56) en contact avec une partie des tissus cardiaques. Un courant électrique est appliqué aux thermocouples (48, 50) pour abaisser la température de la jonction par effet Pelletier et par là refroidir les tissus du coeur en contact. Les effets de ce refroidissement peuvent être contrôlés et les tissus traités si nécessaire.
Johnson Cheryl R.
Larsen Charles E.
Trip Roel
Finlayson & Singlehurst
Novoste Corporation
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