Importance

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Abstract

Apparatus and methods suitable for causing tissue ablation at a specified therapeutic site in the body of a patient. The apparatus comprises an ablation device having a distal end and a proximal end and a central lumen extending along its length, the distal end comprising at least one energy delivery element suitable for causing tissue ablation. A penetrating member having a distal end and a proximal end, the distal end comprising a sharp tip suitable for piercing tissue and creating a channel for the device in the tissue, is coaxially positioned within the central lumen of the ablation device and is capable of being advanced distally out of the central lumen of the device and retracted back to within the central lumen of the device. The apparatus may further comprise an endoscope for delivery of the device to the site of treatment.

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First Claim