| 摘要 |
An embodiment in accordance with the present invention provides an ablation catheter includes a catheter body and an ablation electrode attached to the distal end of the catheter body. A pivot needle is arranged to extend from said catheter body while in use. The pivot needle provides support to assist with directing said ablation electrode along a selected path in contact with tissue during ablation. The pivot needle includes a gripping structure at a distal tip to facilitate attachment to tissue, and can take the form of a barb structure. The barb structure is formed from a soft material to facilitate removal from tissue after being attached. The pivot needle further includes a depth guard to help prevent the insertion of said pivot needle into tissue beyond a predetermined depth, and said pivot needle is extendable from and retractable to said catheter body. |
