METHODS AND DEVICES FOR DIRECTIONALLY ABLATING TISSUE

Ablation instruments and methods are disclosed for ablating diseased tissue such as cardiac tissue. The ablation device can remotely apply ablative energy to biological tissue and comprises a flexible elongate member having a proximal end, a distal end and a longitudinal lumen extending therebetween...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PRUITT, TAZI, NIEMAN, TIM, WARD, JIM, DANG, NINH, HUU, BULMAN, ERIK, MURPHY, JOHN
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:Ablation instruments and methods are disclosed for ablating diseased tissue such as cardiac tissue. The ablation device can remotely apply ablative energy to biological tissue and comprises a flexible elongate member having a proximal end, a distal end and a longitudinal lumen extending therebetween. An energy emitting element is disposed within the longitudinal lumen of the flexible elongate member. The energy emitting element has a proximal end and a distal end for emitting energy along at least a portion of its length. The device is configured to emit a variable amount of energy along a length of the flexible elongate member. The method includes introducing the flexible elongate member into a predetermined tissue site to ablate a target tissue. The target tissue is ablated, coagulated or photochemically modulated without damaging surrounding tissue.