ELONGATED MEDICAL DEVICE SUITABLE FOR INTRAVASCULAR INSERTION AND METHOD OF MAKING AN ELONGATED MEDICAL DEVICE SUITABLE FOR INTRAVASCULAR INSERTION

摘要

The present invention concerns an elongated medical device (1) suitable for intravascular insertion. Said device comprising a flexible elongated body (2) having a distal portion (3) with a distal end (4) and a proximal portion (5), and an electrode assembly (80) located at the distal portion (3) and including at least two support arms (81), each support arm (81) having a proximal part (81a), a distal part (81b) and a central part (81c) between the proximal part (81a) and the distal part (81b). Said device further comprising a plurality of electrodes (82) arranged on the at least two support arms (81), the at least two support arms (81) being configured to have an unexpanded condition (UC), where the at least two support arms (81) fit closely along a portion of the elongated body (2), and to have an expanded condition (EC), where at least a part of each of the at least two support arms (81) project away from the elongated body (2), wherein at least the central parts (81c) of the at least two support arms (81) are wound in a spiral in the expanded condition (EC) of the support arms (81), forming a spiral structure (83) with at least two spiral arms (84) and with the distal end (4) being located in a center of symmetry (C) of the spiral structure (83).