Percutaneous pringle occlusion method and device

A - Human Necessities – 61 – B

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A61B 17/12 (2006.01) A61B 18/14 (2006.01) A61B 17/00 (2006.01)

Patent

CA 2453568

Devices for occluding a vessel in a percutaneous ablation procedure. An elongated access device having a lumen and a tissue piercing, open distal end in communication with the lumen is used to percutaneously access a vessel that supplied blood to the tissue to be treated. An elongated balloon deployment device is used to deliver a balloon into the interior of the vessel. Subsequently, the balloon is inflated, resulting in the occlusion of the vessel. The tissue to be treated is then ablated. Because there is little or no blood to transfer the thermal energy away from the heated tissue, the ablation procedure is performed more efficiently. The balloon may be subsequently deflated allowing normal flow through the vessel to return.

L'invention concerne des dispositifs d'occlusion d'un vaisseau au cours d'une procédure d'ablation percutanée. Un dispositif d'accès allongé comprenant une lumière et une extrémité distale ouverte en communication avec la lumière est utilisé pour accéder par voie percutanée à un vaisseau délivrant du sang au tissu destiné à être traité. Un dispositif allongé de déploiement du ballonnet est utilisé pour mettre en place un ballonnet à l'intérieur du vaisseau. Le ballonnet est ensuite gonflé, permettant l'occlusion du vaisseau. Le tissu à traiter est alors soumis à une ablation. En raison de la faible quantité ou de l'absence de sang pour transférer l'énergie thermique du tissu chauffé, la procédure d'ablation est réalisée plus efficacement. Le ballonnet peut ensuite être dégonflé, permettant le retour d'un flux normal dans le vaisseau.

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