A catheter handle assembly (10) includes a holder (12) having a proximal end anda distal end. An electrode sheath carrier (14) is arranged at the distal end ofthe holder (12) A shape imparting element carrier (16) is removably mountableto the proximal end of the holder (12), the shape imparting element carrier havingat least one mounting formation for mounting at least a part of a shape impartingelement. A slide (20) is displaceably arranged in the holder with a distal endof the slide (20) mounting the electrode sheath carrier (14) and a proximal endof the slide (20) terminating in proximity to the shape imparting element carrier(16).
