本发明涉及一种标测和消融导管，映射导管，其检测病变是，它可以被容纳在突出可能消融导管的消融导管的外侧的内用于去除病变。 这消除了更换标测导管和消融导管的需要，从而减少了手术的时间和成本。 并且，可以防止由烧灼导管在活体组织中发生穿刺。 此外，电极可被烧灼容易进入受影响的区域作为具有消融导管的端部表面的远端侧上的消融导管的消融电极。

The present invention relates to a mapping and ablation catheter, mapping catheter for detecting lesions, it can be made available projecting out of the ablation catheter for removing a lesion contained within the ablation catheter. In this way, remove the trouble of having to replace the mapping catheter and ablation catheter and, can be reduced the time and cost to the procedure. And, it can be prevented from puncturing the living tissue caused by an ablation catheter. In addition,, the ablation electrode can be readily accessible to the affected area as the ablation electrode of the ablation catheter having a distal side of the end surface of the ablation catheter.