Percutaneous catheter and guidewire for filtering during...

A - Human Necessities – 61 – B

Patent

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A61B 18/14 (2006.01) A61B 18/24 (2006.01) A61B 17/00 (2006.01) A61B 18/02 (2006.01) A61B 18/18 (2006.01)

Patent

CA 2378594

An ablation catheter system for capturing and removing necrotic tissue and thrombi generated during an ablative procedure is disclosed. The catheter typically includes an elongate member, a filtration assembly disposed within the distal region, and an ablation instrument at the distal end. Alternatively, the ablation instrument is carried on the distal end of an ablation catheter, which is disposed within a lumen of the catheter system. The catheter may further include an aspiration port and lumen. Methods of using the devices in preventing distal embolization during ablative procedure are disclosed.

L'invention concerne un système de cathéter d'ablation destiné à la capture et à l'enlèvement de tissus nécrosés et de caillots produits lors d'une opération d'ablation. En règle générale, le cathéter comprend un élément allongé, un ensemble filtrant disposé dans la zone distale et un instrument d'ablation à l'extrémité distale. En variante, l'instrument d'ablation est disposé à l'extrémité distale d'un cathéter d'ablation, qui est disposé à l'intérieur d'une lumière du système de cathéter. Le cathéter peut aussi comprendre un orifice d'aspiration et une lumière. L'invention concerne également des procédés d'utilisation des dispositifs pour empêcher l'embolisation distale lors d'une opération d'ablation.

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