AN INTRAMURAL NEEDLE-TIPPED SURGICAL DEVICE

摘要

Surgical devices ( 60 ) are described that are capable of creating deep thermal ablation lesions using a percutaneous or endoscopic technique. In one embodiment, the device ( 600 ) has a catheter-like member ( 620 ) with a lumen that comprises an intramural ablation needle ( 640 ) and a helical fixing member ( 630 ). The helical fixing member ( 630 ) is preferably 3 mm long and is used to fix the catheter ( 620 ) to the tissue to be ablated ( 610 ) enabling the intramural needle-like member ( 640 ) to be pushed into the tissue ( 610 ). The intramural needle-like member ( 640 ) may comprise a thermocouple to allow temperature-controlled ablation and an irrigation tube to allow irrigated needle ablation.